CN102113185A - Cord protector for power tools - Google Patents

Cord protector for power tools Download PDF

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Publication number
CN102113185A
CN102113185A CN2009801298922A CN200980129892A CN102113185A CN 102113185 A CN102113185 A CN 102113185A CN 2009801298922 A CN2009801298922 A CN 2009801298922A CN 200980129892 A CN200980129892 A CN 200980129892A CN 102113185 A CN102113185 A CN 102113185A
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CN
China
Prior art keywords
power line
electric tool
shell
line
spring
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
Application number
CN2009801298922A
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Chinese (zh)
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CN102113185B (en
Inventor
瓦伦·A·切罗
丹尼尔·普齐奥
罗伯特·S·格雷特
理查德·C·尼克尔斯
詹姆斯·R·帕克斯
斯科特·鲁道夫
罗伯特·J·奥西托斯
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Black and Decker Inc
Original Assignee
Black and Decker Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from US12/164,650 external-priority patent/US8348695B2/en
Priority claimed from US12/164,621 external-priority patent/US8035955B2/en
Priority claimed from US12/164,584 external-priority patent/US7727003B2/en
Application filed by Black and Decker Inc filed Critical Black and Decker Inc
Publication of CN102113185A publication Critical patent/CN102113185A/en
Application granted granted Critical
Publication of CN102113185B publication Critical patent/CN102113185B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25FCOMBINATION 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
    • B25F5/00Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
    • B25F5/02Construction of casings, bodies or handles
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/58Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable
    • H01R13/5833Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable the cable being forced in a tortuous or curved path, e.g. knots in cable

Abstract

Provided is a power tool having a housing, a motor disposed in the housing, a power cord connected to the motor, and a cord protector operably engaging the power cord for movement therewith. The cord protector can comprise at least one elastically-deformable biasing member engaging the power cord and exerting a biasing force upon the power cord in response to a load being applied to the power cord and recovering to an initial position in response to removal of the load.

Description

The line protector that is used for electric tool
The cross reference of related application
The application is the U. S. application No.12/164 that submitted on June 30th, 2008,584, the U. S. application No.12/164 that submitted on June 30th, 2008, the U. S. application No.12/164 that on June 30th, 621 and 2008 submitted, 650 PCT international application, in the described U. S. application each all is the U. S. application No.11/860 that submitted on September 25th, 2007, the continuation of 989 part, and this U. S. application No.11/860,989 have required the U.S. Provisional Application No.60/863 that submitted on October 30th, 2006,467 priority.These apply for that disclosed content is incorporated herein by reference.
Technical field
The disclosure relates to the various improvement that are used for electric tool, and is particularly related to line external member load protector.
Background and summary of the invention
Only provide in the statement of this part and to relate to background information of the present disclosure and may not constitute prior art.
The common field failure relevant with the heavier portable power tool such as protable saw is owing to be applied to separating of power line that shock loading on the line or jerk cause and instrument.When instrument falls and when simultaneously the plug end of power line is fixed, perhaps when the user by holding power line handbarrow or instrument dropped to another layer or along ladder when descending from one deck, take place separating of this power line and instrument.
In order to isolate with power line conductor or junction and because of jerking the big active force that power line applies; be installed in the tool outer casing according to power line of the present disclosure, and between the part of the static line protector of wire holder and tool outer casing, have little maintenance ring or extra cable length.Compression bonding apparatus next-door neighbour line protector is installed on the power line cable.When line bore jerk, cable moved axially with respect to the line protector.When cable moves, the external part of compression bonding apparatus compressed lines protector, thereby absorb energy and minimizing be delivered to layout in the enclosure line external member conductor or the power of junction.
From description provided herein, it is obvious that other application will become.Should be appreciated that, these describe and concrete example only for purposes of illustration but not be intended to limit the scope of the present disclosure.
Description of drawings
Accompanying drawing described herein only is used for illustrative purposes, and is intended to limit the scope of the present disclosure absolutely not.
Fig. 1 is the stereogram according to the exemplary worm-drive saw that has the instrument hanger of disclosure principle;
Fig. 2 is that the line external member load protector that illustrates according to disclosure principle is in the sectional view that does not have load situation;
Fig. 3 is the figure that is similar to Fig. 2, and wherein load is applied to line;
Fig. 4 is the stereogram with the exemplary wire holder of using according to the line external member of disclosure principle load protector;
Fig. 5 is the stereogram of the first anchor clamps halfbody;
Fig. 6 is the stereogram of the second anchor clamps halfbody;
Fig. 7 is according to the stereogram of the line external member load protector design of some execution modes, wherein partly removes handle for illustrative purpose;
Fig. 8 is the stereogram that has the line external member load protector design of snakelike pattern according to some execution modes;
Fig. 9 is the front view according to the line external member load protector design that is in initial position of Fig. 8;
Figure 10 is the front view according to the line external member load protector design that is in deviation post of Fig. 8;
Figure 11 is the stereogram according to the line external member load protector design with fish plate of some execution modes;
Figure 12 is the front view according to the line external member load protector design that is in initial position of Figure 11;
Figure 13 is the front view according to the line external member load protector design that is in deviation post of Figure 11;
Figure 14 is the front view that has the line external member load protector design that is in initial position of fish plate according to some execution modes;
Figure 15 is the front view according to the line external member load protector design that is in deviation post of Figure 14;
Figure 16 is the stereogram of line external member load protector design that has the biasing member of inside location according to some execution modes;
Figure 17 is the front view according to the line external member load protector design that is in initial position of Figure 16;
Figure 18 is the front view according to the line external member load protector design that is in deviation post of Figure 16;
Figure 19 is the front view according to the line external member load protector design that is in initial position of some execution modes;
Figure 20 is the front view according to the line external member load protector design that is in deviation post of Figure 19;
Figure 21 is the front view according to the line external member load protector design that is in initial position of some execution modes;
Figure 22 is the front view according to the line external member load protector design that is in deviation post of Figure 21;
Figure 23 is the front view that has the line external member load protector design that is in initial position of extension spring according to some execution modes;
Figure 24 is the front view according to the line external member load protector design that is in deviation post of Figure 23;
Figure 25 is the front view that has the line external member load protector design that is in initial position of extension spring according to some execution modes;
Figure 26 is the front view according to the line external member load protector design that is in deviation post of Figure 25;
Figure 27 is the front view that has the line external member load protector design that is in initial position of sheet spring according to some execution modes;
Figure 28 is the front view according to the line external member load protector design that is in deviation post of Figure 27;
Figure 29 is the front view that has the line external member load protector design that is in initial position of torque spring according to some execution modes;
Figure 30 is the front view according to the line external member load protector design that is in deviation post of Figure 29;
Figure 31 is the amplification stereogram of the biasing member of Figure 29;
Figure 32 is the front view that has the line external member load protector design that is in initial position of tether system according to some execution modes;
Figure 33 is the front view according to the line external member load protector design that is in deviation post of Figure 32;
Figure 34 is the front view that has the line external member load protector design that is in initial position of piston apparatus according to some execution modes;
Figure 35 is the front view according to the line external member load protector design that is in deviation post of Figure 34;
Figure 36 is the front view that has the line external member load protector design that is in initial position of piston apparatus and hole path according to some execution modes;
Figure 37 is the front view according to the line external member load protector design that is in deviation post of Figure 36;
Figure 38 is the front view that has the line external member load protector design that is in initial position of spring lever according to some execution modes;
Figure 39 is the front view according to the line external member load protector design that is in deviation post of Figure 38;
Figure 40 is the front view that has the line external member load protector design that is in initial position of spring lever and secondary spring according to some execution modes;
Figure 41 is the front view according to the line external member load protector design that is in deviation post of Figure 40;
Figure 42 is the front view that has the line external member load protector design that is in initial position of spring lever and torque spring according to some execution modes;
Figure 43 is the front view according to the line external member load protector design that is in deviation post of Figure 42;
Figure 44 is the stereogram that has the line external member load protector design of spring lever and wire holder according to some execution modes;
Figure 45 is the stereogram of spring lever;
Figure 46 is the stereogram of wire holder;
Figure 47 is the front view that has the line external member load protector design that is in initial position of spring member according to some execution modes;
Figure 48 is the front view according to the line external member load protector design that is in deviation post of Figure 47;
Figure 49 is the front view that has the line external member load protector design that is in initial position of bias voltage medium according to some execution modes;
Figure 50 is the front view according to the line external member load protector design that is in deviation post of Figure 49;
Figure 51 is the front view that has the line external member load protector design that is in initial position of disc spring according to some execution modes;
Figure 52 is the front view according to the line external member load protector design that is in deviation post of Figure 51;
Figure 53 is the front view that has the line external member load protector design that is in initial position of spring lever according to some execution modes;
Figure 54 is the front view according to the line external member load protector design that is in deviation post of Figure 53;
Figure 55 is the front view that has the line external member load protector design that is in initial position of breakaway-element connector according to some execution modes;
Figure 56 is the front view according to the line external member load protector design that is in deviation post of Figure 55;
Figure 57 is the stereogram that has the line external member load protector design of cam follower according to some execution modes;
Figure 58 is the front view according to the line external member load protector design that is in initial position of Figure 57;
Figure 59 is the front view according to the line external member load protector design that is in deviation post of Figure 57;
Figure 60 is the stereogram of line external member load protector design that is in the cam follower of initial position according to having of some execution modes; And
Figure 61 is the stereogram of the line external member load protector design that is in deviation post of Figure 60.
Embodiment
Following explanation itself only is exemplary and is not intended to limit the disclosure, its application or purposes.
With reference to Fig. 1 and 2, exemplary electric tool 10 is shown, it has line external member load protector 114, and being used to prevent to be applied to big active force on the power line 112 influences being connected of line 112 and electric tool 10.As illustrated in fig. 1, electric tool 10 comprises line 112 and the line protector 114 that extends from the rear end of instrument.Line protector 114 is installed in the recess 116 that is arranged in the electric tool shell 118.The cross section of recess 116 can be square or circular, and limits the cave, chamber of the radially extending flange portion 120 that is used to receive elastica protector 114 in the recess 116.Radially extending flange portion 120 arranges near shoulder portion 122.Compression bonding apparatus 124 is clamped or be crimped onto on the power line 112 and comprise radially extending flange portion 126, and this radially extending flange portion 126 arranges near the end of line protector 114 in chamber 116 inside of shell 118.Flange part 126 is arranged near the shoulder that extends radially inwardly 128 that is arranged at the cave, chamber 116 in the shell 118.
Compression bonding apparatus 124 will engage power line than the mode of describing in detail with this paper, thereby by axially and be rotatably fixed to power line 112.By being arranged on the wire holder 130 in the electric tool 10, power line 112 also is clamped to tool outer casing, makes to be provided with extra length of cable 112a in the enclosure between compression bonding apparatus 124 and wire holder 130.Wire holder 130 can be by securing member 132 or by being installed to shell such as other known fixing meanss such as riveted joint, welding, grommets.Wire holder 130 can reach several inches at interval with recess 116.By the uniaxial stress that will be produced by deflection by line with because clamped and stress that cause on line places two different positions rather than the two roughly in identical position, with respect to recess 116 further inwardly position line anchor clamps 130 can improve line deflection durability.It has improved the flex life of conductor.
When bigger power F was applied to power line 112, as shown in Figure 3, power line 112 was pulled on the axial direction of power F.Power line 112 moves axially with respect to shoulder portion 128 with respect to the mobile compression bonding apparatus 124 that causes of shell 118, makes the flange part 120 of flange part 126 compressed lines protectors 114 of compression bonding apparatus 124 to absorb the power that applies on online 112 thus.Compression bonding apparatus 124 is used up with respect to moving axially of wire holder 130 and is arranged among the extra length of cable 112a between compression bonding apparatus 124 and the wire holder 130 some, and power can be applied on the wire holder 130.
Compression bonding apparatus 124 can present various ways.As example, as shown in Fig. 4 and 6, compression bonding apparatus 124 can comprise the first anchor clamps halfbody 136 and the second anchor clamps halfbody 138.Each anchor clamps halfbody 136,138 is provided with semicircle tubular body 140, and each semicircle tubular body 140 is provided with a plurality of ribs that extend radially inwardly 142, and described rib 142 is designed to engage and clamp the outer surface of power line 112.The first anchor clamps halfbody 136 is provided with a plurality of apertures 144, and each aperture 144 is suitable for receiving a plurality of corresponding sealed fingers 146 that is arranged on the second anchor clamps halfbody 138.The first anchor clamps halfbody 136 and the second anchor clamps halfbody 138 comprise radial flange portions 126a and radial flange portions 126b separately respectively, and radial flange portions 126a, 126b limit the radially extending flange portion 126 of compression bonding apparatus 124.Sealed fingers 146 is fixed to the second anchor clamps halfbody 138 on the first anchor clamps halfbody 136 and is in the state of pinch engagement on the power line 112, to prevent that power line 112 with respect to clamping device 124 axially or motion rotatably.Should be appreciated that according to principle of the present disclosure, other anchor clamps or crimping configuration can be used with this line external member load protector 110.
With reference to Fig. 7, optional line external member load protector 110 ' is shown, it comprises split type grip device 124 ', this grip device 124 ' is received in the recess 302 in the handle portion 300, to prevent the assembly distortion or to be pushed in the handle external member.Split type anchor clamps 124 ' are independent of the complete line external member 112 of handle external member 300 and trap and the secondary winding of filler wire harness.Line protector 114 ' comprises additional materials at installation end, and this additional materials prevents distortion and forms spring to absorb vibration.
In some embodiments, as shown in Fig. 8 to Figure 10, line external member load protector 110 can comprise a plurality of biasing members, for example rib, post and/or spring, and these biasing members extend in the enclosure, so that the absorption of vibrations function to be provided at least in part.Particularly, shell 118 can comprise two or more biasing members 402 of extending internally from shell 118 (for example, as three biasing members 402 that illustrate).Before the skew of biasing member 402, in the biasing member 402 longitudinal axis of each can with power line 112 quadratures.Biasing member 402 can be arranged to provide power line 112 to pass the serpentine path of shell 118.But, should be appreciated that, in the scope of this instruction, can use other path configuration.More specifically, as shown in Figure 9, biasing member 402 can be arranged such that each biasing member is with respect to axis PC bias voltage laterally.Can determine the accurate amount of this bias voltage based on the physical characteristic of the performance of compliance required in the line external member load protector 110, power line 112 and biasing member 402.
Should be appreciated that, biasing member/spring lever 402 can comprise at adjustment bear when load submissive response (, bias voltage distributes) feature, material or can adopt other manufacturing technology of submissive response when bearing load (, bias voltage distributes) at adjustment.For example, in some embodiments, biasing member/spring lever 402 can comprise molded components or formed parts, and the cross sectional shape of these members is a non-cylindrical, and is for example recess, the plane and/or uneven for taper, band.This cross sectional shape can the time provide nonlinear submissive response bearing load, is carrying out initial offset under the lighter situation of load and reduce skew gradually under the increasing situation of load allowing.
In addition, continue with reference to Fig. 8-10, in some embodiments, the biasing member 402 of line external member load protector 110 can be made into certain size and can be made so that predetermined compliance to be provided by certain material.For example, biasing member 402 can have the diameter that is enough to make it possible to strain.Similarly, biasing member 402 can be made by the material that allows this strain.Further, can provide the combination of size and material to realize this strain.In addition, can utilize with shell 118 materials similar or utilize different materials that biasing member 402 and shell 118 is integrally formed.
In use, if there is enough power to be applied on the power line 112, then relevant power antagonism biasing member 402 transmits, thereby biasing member 402 is offset on a direction, makes the degree of serpentine shaped reduce (seeing the progressive stages of Fig. 9 (unmigrated) and 10 (skews)).This skew provides power to absorb along axis PC.
With reference to Figure 23-26, should be appreciated that biasing member 402 can comprise the spring member that operationally engages power line 112, so that the biasing force that makes power line 112 shift into snakelike configuration to be provided.In this embodiment, the biasing member 402 that comprises spring member can at one end be connected to shell 118 or other maintenance structure 408 and be connected to rotatable pulley 404 (Figure 25 and 26) or engagement member 406 (seeing Figure 23 and 24) at the other end.Rotatable pulley 404 can be used for helping power line 112 with respect to biasing member 402 unconfined translations.When this translation of power line 112 hour, can use engagement member 406.The biasing member 402 that comprises spring member can comprise relative to each other different rebound degrees, distributes to increase or to adjust required bias voltage.
In some embodiments, as shown in Figure 11-15, biasing member 402 can be the rib that extends internally of the opposite side from shell 118 and can be configured to engage and be fixedly coupled to power line 112 so that the fish plate 410 that moves with power line.More specifically, fish plate 410 can comprise disk, and this disk has aperture 412, and the size in this aperture 412 is fit to the power line that reception is therefrom passed.Fish plate 410 can keep in position with respect to power line 112 via butt anchor clamps 414.In some embodiments, butt anchor clamps 414 can comprise U-shaped main member 416, back holding plate 418 and a plurality of securing member 420, and this securing member 420 is used for connecting U-shaped main member 416 and back holding plate 418 so that U-shaped main member 416 and back holding plate 418 move with power line 112 around power line 112 with clamping.Should be appreciated that the size configurations of U-shaped main member 416 becomes when butt anchor clamps 414 are installed on the power line 112 and power line 112 limits interference fit.Be also to be understood that and to use substituting butt anchor clamps or retaining member.Be also to be understood that fish plate 410 and butt anchor clamps 414 can by single, become whole member to form and can have known can with the biasing member 402 correct different shapes that engage.
Still with reference to Figure 11-15, can see that biasing member 402 can be formed a series of rib, described a series of ribs have and power line 112 plane orthogonal roughly.Biasing member 402 can be disposed on the opposite side of power line 112, perhaps around power line 112 circumferential arrangement, to apply the line protection of balance.As described herein, the biasing member 402 of line external member load protector 110 can be had and had the dimensions and made so that predetermined compliance to be provided by certain material.For example, biasing member 402 can have constant thickness, the thickness that changes along the thickness of its length variations, with respect to other biasing member, be made or had the combination of these characteristics so that can be along predetermined bias voltage distribution strain by submissive material.In addition, biasing member 402 can be arranged such that relative to each other that first biasing member in the biasing member 402 is offset and engages second biasing member (by that analogy) in the biasing member 402, so that compound biasing force to be provided.
In use, if there is enough power to be applied to power line 112, power line 112 translations, the left side translation in figure with fish plate 410 and butt anchor clamps 414 similarly thus.This translation makes fish plate 410 engage described a series of biasing member 402 in turn, and relevant thus power antagonism biasing member 402 transmission, thereby makes biasing member 402 skews.This skew provides power to absorb along axis PC.
In some embodiments, as shown in Figure 14 and 15, butt anchor clamps 414 can comprise and are connected to power line 112 so that and the long element that moves together of power line 112.In this embodiment, butt anchor clamps 414 can comprise a series of circumferential slots 422, and this circumferential slot 422 has respective end with biasing member 402 and is received in wherein size.Like this, during along axis PC initial movable, each in a plurality of biasing members 402 can activated or be offset simultaneously at power line 112, and the bias voltage response of substantial linear is provided thus.Butt anchor clamps 414 can be made so that the bias voltage with respect to biasing member 402 to be provided, as shown in Figure 15 by flexibility or elastomeric material.
In some embodiments, as shown in Figure 16 to Figure 18, biasing member 402 can be the rib that extends internally of the opposite side from shell 118 and can be positioned in the central portion that is formed at the ring the power line 112.Just, biasing member 402 can be formed two or more ribs, and power line 112 can pass through around rib.Biasing member 402 can have arcuate shape, and its arcuate shape fits tightly the predetermined ring radius of power line 112.Should be appreciated that this ring radius should be through selecting so that exceedingly do not strain power line 112.
In use, if enough power is applied to power line 112, then power line 112 translations apply the compression stress in pointing to thus on biasing member 402, cause biasing member 402 to be displaced to the second place (Figure 18) from primary importance (Figure 17).This skew provides power to absorb along axis PC.
Referring now to Figure 19 to Figure 22, in some embodiments, biasing member 402 can comprise with shell 118 and separate the member that forms, for example, and member or other energy-absorbing member of steel rim of spring (Figure 19 and 20), flexible or compressible component (Figure 21 and 22), hollow sealing.In these execution modes, biasing member 402 can be located in the interior turning of shell 118, makes that this power is passed to biasing member 402 when power is applied to power line 112, and the sidewall against shell 118 compresses biasing member 402 thus.In some embodiments, shell 118 can comprise profile portion 420, is used for biasing member 402 being received in wherein and biasing member 402 being remained on preposition.Should be appreciated that biasing member 402 can provide any materials of enough elasticity/compliant characteristic to make by for example spring steel, elastomer etc.
Referring now to Figure 27 and 28,, in some embodiments, biasing member 402 can comprise sheet spring 430.Sheet spring 430 can comprise the roughly member of arc, this roughly the member of arc by being enough to resilient bias and providing the material of biasing force to make to power line 112.In some embodiments, sheet spring 430 keeps by retaining member 434 at 432 places, relative end.Retaining member 434 can be fixedly coupled to shell 118.Should be appreciated that in some embodiments, the size of retaining member 434 can be configured to allow sheet spring 430 can be free to slide (seeing Figure 28) with respect to it.
In use, if enough masterpieces are used power line 112, then power line 112 becomes straight, applies the power in the sensing thus on biasing member 402, causes sheet spring 430 to be displaced to the second place (Figure 28) from primary importance (Figure 27).This skew provides along the power of axis PC and absorbs.
Referring now to Figure 29 to Figure 31,, in some embodiments, biasing member 402 can comprise torque spring member 436.In some embodiments, torque spring member 436 comprises torque spring 437, and this torque spring 437 keeps by retaining member 444 on an end 438.Retaining member 440 can be fixedly coupled to shell 118.Torque spring member 436 can comprise the slot part 442 that is formed on wherein, is used for receiving and keeping power line 112.
In use, if enough power is applied to power line 112, then power line 112 becomes straight, on biasing member 402, apply torsion thus, cause torque spring member 436 to overcome the biasing force of torque spring 437 along counterclockwise turning to the second place (Figure 30) among the figure from primary importance (Figure 29).This skew provides power to absorb along axis PC.
With reference to Figure 32 and 33, in some embodiments, biasing member 402 can comprise the tether system 450 of bias voltage.The tether system 450 of bias voltage can comprise the bias voltage spool 452 that keeps tether 454.Tether 454 can comprise the coupler members 456 that is fixedly coupled to power line 112.The tether system of bias voltage can be arranged such that its part extends to outside the shell 118 at least.In this embodiment, being formed with aperture 458 in the shell 118 passes therethrough to allow tether 454.
Bias voltage spool 452 can be spring biased to provide retraction force on power line 112.Thus, in use, if enough power is applied to power line 112, then power line 112 becomes straight, applies power thus on tether 454, and this power is passed to bias voltage spool 452.This power makes bias voltage spool 452 overcome its biasing force, and (Figure 32) turns to the second place (Figure 33) along the clockwise direction among the figure from primary importance.This skew provides power to absorb along axis PC.
Referring now to Figure 34 and 35, in some embodiments, biasing member 402 can comprise piston apparatus 510, so that the absorption of vibrations function to be provided at least in part.Particularly, in some embodiments, piston apparatus 510 can be disposed in the shell 118, perhaps can be formed in some embodiments shell 118 outside.With reference to Figure 34 and 35, piston apparatus 510 can comprise the piston component 512 that is arranged in slidably in the piston chamber 514 especially.Piston component 512 can limit sealing between piston component 512 and piston chamber 514, to produce compressible P-V 516.Piston component 512 can comprise the bar 518 that is fixedly coupled to wire holder 130, and this wire holder 130 is fixedly coupled to power line 112 again so that with power line 112 motions.Piston chamber 514 can be fixedly coupled to shell 118 or integrally formed with shell 118.In some embodiments, piston chamber 514 can keep by the retainer structure (not shown) that separates with shell 118.
In use, if enough power is applied to power line 112, then power line 112 translations make piston component 512 with respect to the left side translation of piston chamber 514 in figure thus similarly.This translation makes the fluid such as air, gas or liquid in the piston component 512 compression pressure chambers 516, produces reverse biasing force thus.This compression to the fluid in the pressure chamber 516 provides power to absorb with cumulative speed along axis PC.
Turn to Figure 36 and 37 now, in some embodiments, piston apparatus 510 can be disposed in the shell 118, makes piston component 512 engage piston chamber 514 slidably.Piston chamber 514 can be formed the part of shell 118, makes piston component 512 inwall of splice enclosure 118 slidably, to form sealings and to limit compressible P-V 516 with shell 118.Piston component 512 can by directly, be fixedly coupled on the power line 112 so that with power line 112 motions.In some embodiments, piston component 512 can comprise one or more hole paths 530 that extend through piston component 512.Hole path 530 can provide the stream of the fluid (that is air) from compressible P-V 516 to the adjusting of atmosphere.In other words, the size of the hole path 530 fluid evacuation speed that can be configured to allow be scheduled to distributes to produce required bias voltage.In some embodiments, orifice plate 532 can be disposed in the shell 118, engages the maintenance feature that is formed in the shell 118, to limit compressible P-V 516.Orifice plate 532 can comprise the one or more holes path 530 that passes its formation, and the fluid of being to and from compressible P-V 516 (that is air) that is conditioned with further enhancing and adjustment flows.
In use, if enough power is applied to power line 112, then power line 112 translations make piston component 512 with respect to the left side translation of piston chamber 514 in figure thus similarly.This translation makes the fluid such as air, gas or liquid in the piston component 512 compression pressure chambers 516, produces reverse biasing force thus.This compression to the fluid in the pressure chamber 516 provides power to absorb with cumulative speed along axis PC.
In some embodiments, illustrate at Figure 38 to Figure 46 that line external member load protector 110 can comprise spring lever assembly 600.In some embodiments, spring lever assembly 600 can comprise spring lever 602 and be fixedly coupled to spring lever 602 and the wire holder 130 of power line 112.Illustrate that at Figure 38 to Figure 46 spring lever 602 can be fixedly coupled to shell 118 via the one or more retaining members 604 that extend from shell 118.More specifically, spring lever 602 can comprise a plurality of corresponding installations aperture 606 (seeing Figure 45), and the size configurations in described installation aperture 606 becomes to receive from its retaining member that passes 604.In some embodiments, retaining member 604 can be for example by the fixed stake of heat or weld deformable, spring lever 602 is for good and all remained on predetermined operable position (seeing Figure 44).Retaining member 604 can be spaced apart, and with the plane of extending between the center that is limited to them, the longitudinal axis of wherein said plane and power line 112 is quadrature roughly.In addition, retaining member 604 can be the groove of sleeve or formation in shell 118, the end that is used to receive and keep spring lever 602.
In some embodiments, line external member load protector 110 can comprise the wire holder 608 that is fixedly coupled to spring lever 602.In some embodiments, as shown in Figure 38 to Figure 46, wire holder 608 can comprise a pair of clamping component 610, and described a pair of clamping component 610 is fit to be connected to together via securing member 612 (seeing Figure 44).Particularly, each clamping component 610 can comprise the aperture 614 and the threaded bores 616 of expansion, and the aperture 614 of described expansion is used to allow the bar portion of securing member 612 to pass through, and described threaded bores 616 is used for by the jointing fastener 612 that is threaded.Each clamping component 610 can comprise: the groove 618 of Xing Chenging therein, in order to clamp the sidepiece of spring lever 602; And the part 620 of circular, in order to clamp power line 112.In this way, wire holder 608 can be installed on the end of spring lever 602, makes the sidepiece of groove 618 combined spring bars 602 of each clamping component 610.Similarly, power line 112 can extend between clamping component 610.In case tightening fastener parts 612, clamping component 610 can be drawn into together, clamps and confining force thereby apply on spring lever 602 and power line 112.In this way, wire holder 608 is fixedly coupled to power line 112 so that move together with power line 112.Should be appreciated that clamping component 610 is constructed such that and can uses single manufacturing part on the opposite side of spring lever 602.
With reference to Figure 45, spring lever 602 can comprise the end 622 of trough of belt, is used to receive the power line 112 that passes therethrough.
In use, if enough masterpieces are used power line 112, then Xiang Guan power is transmitted by wire holder 608 and antagonism spring lever 602, thereby makes spring lever 602 skew between the position (Figure 39,41 and 43) of the position of loosening (seeing Figure 38,40,42 and 44) and skew.This skew provides power to absorb along axis PC.Can be based in part on the size of spring lever 602 and length with and material determine the biasing force of spring lever 602.But, should be appreciated that, in some embodiments, can need the biasing force that adds.In this case, secondary spring member 630 (Figure 40 and 41) can be used to be arranged between wire holder 608 and the shell 118.Secondary spring 630 can be the compression spring, and it has linear or progressive rebound degree.In addition, secondary spring member 630 can comprise disc spring, torque spring, elastic component etc.Spring member 630 can with power line 112 coaxial arrangement, to keep aliging of spring member 630 and power line 112.Should be appreciated that spring member 630 can separate use with spring lever 602, shown in Figure 47 and 48.
In some embodiments, as shown in Figure 42 and 43, spring lever 602 can connect pivotally about axle 650, so as between the position (Figure 43) of loose position (Figure 42) and skew pivoting action.In this embodiment, torque spring 652 can be used to when bearing load power line 112 be applied opposite biasing force.
In some embodiments, bellmouth 634 can be used to limit the skew of the power line 112 that leaves shell 118.Bellmouth 634 can comprise the roughly body 636 and the bending outlet 638 with curved cutplanes of straight line.Bellmouth 634 can be fixedly coupled to wire holder 608 so that move together with wire holder 608, makes that bellmouth 634 is with wire holder 608 motions when power line 112 bears load.
Referring now to Figure 49 to Figure 52, in some embodiments, bias system 710 can comprise the plunger member 712 that is arranged in slidably in the shell 118.In some embodiments, plunger member 712 can be arranged in the plunger chamber 713 slidably, and this plunger chamber 713 is arranged in the shell 118 or forms the part of shell 118.Should be appreciated that plunger chamber 120 is can be with shell 118 integrally formed and only be the part of shell 118 thus, perhaps can form the sub-component that can be positioned in the shell 118 to form dividually with shell 118.
Plunger member 712 utilizes coupling member 714 to be fixedly coupled to power line 112 so that move together with power line 112.Coupling member 714 can allow that thereby plunger member 712 is attached to any form of moving with power line 112 on the power line 112 to be formed.In some embodiments, coupling member 714 can comprise clamp bracket, and described clamp bracket has the relative sidepiece that links together via fastener threads, to apply clamping force to power line 112.Thus, as required, any other parts by plunger chamber 713, plunger member 712 and shell 118 limit collapsible volume 716.
In some embodiments, as shown in Figure 49 and Figure 50, collapsible volume 716 can comprise the bias voltage medium 718 that is arranged in wherein.Bias voltage medium 718 can comprise a plurality of elastic components that are configured as spherical, pearl, cobble shape or various arbitrary shapes.This bias voltage medium can freely be placed in the collapsible volume 716 to be piled up, to pile up or otherwise to assemble in response to the motion of plunger member 712.Just, bias voltage medium 718 can flow freely in collapsible volume 716 or otherwise motion at first, then will otherwise be constrained on the position of skew.
In use, if enough masterpieces are used power line 112, then power line 112 translations make plunger member 712 with respect to the left side translation of plunger chamber 713 in figure thus similarly.This translation makes plunger member 712 facing to the wall pressure of the plunger chamber 713 bias voltage medium 718 that contracts.Produced the reverse biased power of moving of opposing power line 112 thus along axis PC by the reverse biased power of the bias voltage medium 718 that contracts facing to the wall pressure of plunger chamber 713.By the selection of bias voltage medium, the rebound degree of this reverse biased power can be adjusted to predetermined bias voltage and distribute, the selection of bias voltage medium comprises the selection of the selection of materials used, media size, selection of medium amount or the like.Should be appreciated that, can use the mixture of different medium.
In some embodiments, as shown in Figure 51 and Figure 52, disc spring member 720 can be connected, between shell 118 and plunger member 712 to provide to plunger member 712 biasing forces.In some embodiments, disc spring member 720 comprises disc spring, and described disc spring has first end 722 that is fixedly coupled to shell 118 and the second opposed end 724 that is fixedly coupled to plunger member 712.Disc spring member 720 extensible parts by plunger member 712 and coupling member 714 are so that be connected to the surface 726 of plunger member 712.But, should be appreciated that disc spring member 720 can be fixedly coupled to the trailing flank 728 of plunger member 712 or coupling member 714.
In use, if enough masterpieces are used power line 112, then power line 112 translations make plunger member 712 with respect to the left side translation of plunger chamber 713 in figure thus similarly.This translation causes second end 724 of plunger member 712 tractive disc spring members 720, makes disc spring member 720 become straight thus, thereby produces the reverse biased power that moves of opposing power line 112 along axis PC.The selection of the selection by material and the spring performance of disc spring member 720 can be adjusted to the rebound degree of this reverse biased power predetermined bias voltage and distribute.
In some embodiments, as shown in Figure 53 and Figure 54, spring cam lever 726 can be coupled on the shell 118.Spring cam lever 726 can be the bar that turns over the general planar of end 728 on having.The maintenance end 730 of spring cam lever 726 can be fixedly coupled to shell 118 via the maintenance feature 732 of extending from shell 118.Keep feature 732 can comprise molded built-in feature, for example sleeve is used for will keeping end 730 to remain on wherein by interference fit or other connection.Plunger member 712 can comprise from the cam feature 734 of the projection of the side extension of plunger member 712, and be arranged in slidably in the guiding groove 736.The cam feature 734 of projection can be configured to moving of power source-responsive line 112 and plunger member 712 and combined spring cam lever 726 and this spring cam lever 726 is offset gradually.
In use, if enough masterpieces are used power line 112, then power line 112 translations make plunger member 712 with respect to the left side translation of guiding groove 736 in figure thus similarly.This translation causes the cam feature 734 of projection to hold 730 translations from turning over end 728 towards maintenance along spring cam lever 726.Result as the cam feature 734 of projection is located near spring cam lever 726 causes spring cam lever 726 to be displaced to deviation post gradually from initial position, produces the reverse biased power that opposing power line 112 moves along axis PC thus.Can the rebound degree of this reverse biased power be adjusted to predetermined bias voltage distribution by material and the spring performance of selecting spring cam lever 726.
In some embodiments, as shown in Figure 55 and Figure 56, line external member load protector 110 can comprise breakaway-element connector 800.This breakaway-element connector 800 can comprise the first line halfbody 802 and the second line halfbody 804, via the positive terminator 806 that extends from the first line halfbody 802 and/or the second line halfbody 804 and be arranged in the first line halfbody 802 and/or the second line halfbody 804 cloudy terminator 808, the first line halfbodies 802 and the second line halfbody 804 can be electrically connected.Sun terminator 806 and cloudy terminator 808 can be configured to not only limit electrical connection but also limit mechanical connection, and wherein, mechanical connection can disconnect in response to the predetermined load that acts on along power line 112.In case reach this predetermined load, mechanical connection disconnects, interrupt thus being electrically connected.Should can be selected to less than the known load that may cause power line 112 to damage by predetermined load (that is confining force).Tether member 810 can be used to link the first line halfbody 802 and the second line halfbody 804, make that in case reach this predetermined load and mechanical connection disconnects tether member 810 can keep the first line halfbody 802 and the second line halfbody 804 closely near so that be connected again so.Tether member 810 can be the band member that is connected to the first line halfbody 802 and the second line halfbody 804 via securing member.Tether member 810 can be configured to have the big load-bearing ability of mechanical connection than between the first line halfbody 802 and the second line halfbody 804.
Referring now to Figure 57 to Figure 61, in some embodiments, line external member load protector 110 can comprise the cam pack 900 of bias voltage.Particularly, in some embodiments, the cam pack 900 of bias voltage can be disposed in the shell 118, perhaps can be formed on the outside of shell 118 in some embodiments.With reference to Figure 16, the cam pack 900 of bias voltage can comprise camshaft follower bracket 910, wire holder support 912 and biasing member 914 especially.In some embodiments, camshaft follower bracket comprises body 916, and this body 916 has one or more cam paths 918, and the size configurations of each cam path 918 becomes to receive the cam follower 920 (that is securing member) from wherein extending through.The size configurations of cam follower 920 and cam path 918 becomes each other to fit tightly, so that unconfined camming movement to be provided.Cam follower 920 is configured to be received in the mounting structure 922 of shell 118 extensions or in other supporting construction that is equal to by being threaded.
In some embodiments, wire holder support 912 can comprise rack body, this rack body is shaped as and comprises that first power line maintenance groove 924, this first power line keep the size configurations of groove 924 to become and keep groove 924 and second source line to keep engaging between the groove 926 with clamping and keeping power line 112 (Figure 58 to Figure 61) and in corresponding second source line maintenance groove 926 complementations that form on the camshaft follower bracket 910 and at this first power line.In this way, camshaft follower bracket 910 can as one man move with power line 112.
In some embodiments, wire holder support 912 can comprise the aperture 928 of a pair of expansion, is used for allowing the bar portion of securing member 930 by entering in the corresponding threaded bores 932 that camshaft follower bracket 910 forms.When tightening fastener parts 930, wire holder support 912 quilts clamp and confining force thereby apply on power line 112 towards camshaft follower bracket 910 tractives.In this way, wire holder support 912 is fixedly coupled to power line 112 so that with power line 112 motions.
Continuation is with reference to Figure 57 to Figure 59, and biasing member 914 can be disposed in the position between camshaft follower bracket 910 and the shell 118, makes the motion in the left side of camshaft follower bracket 910 in figure apply compression stress on biasing member 914.Especially, in some embodiments, biasing member 914 can be positioned such that biasing member 914 engaged at end shell 118 sidewall or more specifically engage the sidewall of mounting structure 922.The relative end of biasing member 914 can be oriented to combined spring wall 934.
Should be appreciated that, can have the multiple remodeling of the cam pack 900 of bias voltage, such as, for instance, biasing member 914 can be positioned such that the one termination closes the sidewall of shell 118 and at least a portion of its opposite end closing line fixture mount 912.In this way, biasing member 914 can be arranged with 112 one-tenth coaxial relations of power line.
In use, if enough masterpieces are used power line 112, then power line 112 translations make the left side translation of camshaft follower bracket 910 in figure thus similarly.Thereby sliding, cam follower 920 provides level and smooth, unconfined skew in cam path 918.This translation causes biasing member 914 compressions to produce reverse biased power thus.This compression of biasing member 914 provides power to absorb along axis PC.
From above should be appreciated that, one or more disclosed execution mode can use simultaneously to provide improved to the adjustment of bias voltage distribution and the line protection of enhancing.

Claims (50)

1. electric tool comprises:
Tool body, described tool body has shell;
Motor, described motor arrangement is in described shell;
Power line, described power line is connected to described motor; And
The line protector; described line protector operationally engages described power line; described line protector comprises the biasing member of at least one elastically deformable; described biasing member engages described power line and applies biasing force in response to affacting the load on the described power line on described power line, and described biasing member returns back to initial position in response to removing of described load.
2. electric tool according to claim 1, wherein, described line protector comprises a plurality of biasing members that extend from described shell, described a plurality of biasing members can be offset between initial position and deviation post.
3. electric tool according to claim 2, wherein, described a plurality of biasing members are along the axis bias of described power line, and described power line centers on described a plurality of biasing member deposition path, thereby limits snakelike pattern.
4. electric tool according to claim 3 further comprises:
Clamping component, described clamping component is connected to described shell with the part of described power line, makes that described a plurality of biasing members are displaced to described deviation post when described load affacts on the described power line.
5. electric tool according to claim 1, wherein, described at least one biasing member is a long element.
6. electric tool according to claim 5, wherein, described long element is cylindric.
7. electric tool according to claim 5, wherein, described long element is uneven.
8. electric tool according to claim 1, wherein, described at least one biasing member is an extension spring, described extension spring is connected to described shell and engages described power line at relative place, end at place, an end.
9. electric tool according to claim 1 further comprises:
Fish plate, described fish plate is fixedly coupled to described power line; Described fish plate engages described at least one biasing member.
10. electric tool according to claim 9, wherein, described line protector comprises a plurality of biasing members that extend from described shell, described a plurality of biasing members are arranged around the radial axis ground of described power line.
11. electric tool according to claim 10, wherein, described fish plate sequentially engages at least two in described a plurality of biasing member in response to described load.
12. electric tool according to claim 10, wherein, described fish plate side by side engages in described a plurality of biasing member at least two in response to described load.
13. electric tool according to claim 1, wherein, described line protector comprises a plurality of biasing members that extend from described shell, and described a plurality of biasing members can be radially to bias internal between initial position and deviation post.
14. electric tool according to claim 13, wherein, described power line is located around described a plurality of biasing members circularly.
15. electric tool according to claim 1, wherein, described biasing member is the spherical component that is positioned between described power line and the described shell.
16. electric tool according to claim 1, wherein, described at least one biasing member is the sheet spring, and described spring is connected to described shell slidably on relative end.
17. electric tool according to claim 1, wherein, described at least one biasing member is a torque spring, and described torque spring is fixedly coupled to described shell on an end.
18. electric tool according to claim 1 further comprises:
Tether, described tether operationally connect described power line and described biasing member.
19. electric tool according to claim 1, wherein, described biasing member is a piston apparatus, described piston apparatus comprises piston component and piston chamber, described piston component is fixedly coupled to described power line and is arranged in slidably in the described piston chamber, thereby limit compressible pressure volume, described compressible pressure volume is in response to described load output reverse biased power.
20. electric tool according to claim 19 further comprises:
The hole path, described hole path extends through at least one in described piston component and the described piston chamber, and described hole path makes described compressible pressure volume be communicated with the atmosphere fluid.
21. an electric tool comprises:
Tool body, described tool body has shell;
Motor, described motor arrangement is in described shell;
Power line, described power line is connected to described motor; And
The line protector; described line protector operationally engages described power line; described line protector comprises the spring lever member; described spring lever member is being connected to described shell and is engaging described power line on the second end on the first end; described spring lever applies biasing force in response to affacting the load on the described power line on described power line, and is returned to initial position in response to removing of described load.
22. electric tool according to claim 21 further comprises:
Wire holder, described wire holder is fixedly coupled to described power line with the described the second end of described spring lever.
23. electric tool according to claim 22, wherein, described wire holder comprises:
A pair of clamping component, each in the described a pair of clamping component have and are used to second groove that engages first groove of described spring lever and be used to engage described power line.
24. electric tool according to claim 21 further comprises:
Spring member, described spring member are arranged between described spring lever and the described shell, apply biasing force at least one in described power line and described spring lever of described spring member.
25. electric tool according to claim 24, wherein, described spring member and described power line are coaxial.
26. electric tool according to claim 21, wherein, described spring lever is connected to described shell at described first end place by the fixed stake of heat.
27. electric tool according to claim 21, wherein, described spring lever is connected to described shell pivotly at described first end place, and described electric tool further comprises torque spring, and described torque spring is biased into described spring lever in the described initial position.
28. the electric tool according to claim 21 further comprises:
The bellmouth member, described bellmouth member connects regularly with described line protector, the described power line that described bellmouth member has the part of bell-shaped and is formed and passes therethrough in order to reception.
29. according to the electric tool of claim 21, wherein, described spring lever provides uneven biasing force.
30. an electric tool comprises:
Tool body, described tool body has shell;
Motor, described motor arrangement is in described shell;
Power line, described power line is connected to described motor; And
The line protector; described line protector operationally engages described power line; described line protector comprises spring member; described spring member is engaging described shell and engaging described power line on the second end on the first end; described spring member applies biasing force in response to affacting the load on the described power line on described power line, and described spring member is returned to initial position in response to removing of described load.
31. the electric tool according to claim 30 further comprises:
Wire holder, described wire holder engage the described the second end and the described power line of described spring member.
32. according to the electric tool of claim 30, wherein, described spring member and described power line are coaxial.
33. the electric tool according to claim 30 further comprises:
The bellmouth member, this bellmouth member connects regularly with described line protector, the described power line that described bellmouth member has the part of bell-shaped and is formed and passes therethrough in order to reception.
34. according to the electric tool of claim 30, wherein, described spring member provides uneven biasing force.
35. an electric tool comprises:
Tool body, described tool body has shell;
Motor, described motor arrangement is in described shell;
Power line, described power line is connected to described motor; And
The line protector; described line protector operationally is connected to described power line so that move with described power line; described line protector comprises the camshaft follower bracket with cam path; the size configurations of described cam path becomes to receive cam follower, and described camshaft follower bracket is biased into initial position and applies biasing force in response to affacting the load on the described power line on described power line.
36. electric tool according to claim 35; wherein; described line protector further comprises the wire holder support, and described wire holder support is fixedly coupled to described camshaft follower bracket, and described wire holder support and described camshaft follower bracket engage together with clamping and keep described power line.
37. according to the electric tool of claim 35, wherein, described cam follower comprises securing member, described securing member extends through described cam path and the described shell of threads engage slidably.
38. the electric tool according to claim 35 further comprises:
Biasing member, described biasing member is biased into described camshaft follower bracket in the described initial position, and described biasing member is returned to described initial position in response to removing of described load.
39. according to the electric tool of claim 38, wherein, described biasing member is arranged between described shell and the described camshaft follower bracket.
40. according to the electric tool of claim 38, wherein, described biasing member is arranged in described shell and is formed between the spring wall on the described camshaft follower bracket.
41. according to the electric tool of claim 38, wherein, described biasing member and described power line coaxial arrangement.
42. an electric tool comprises:
Tool body, described tool body has shell;
Motor, described motor arrangement is in described shell;
Power line, described power line is connected to described motor; And
The line protector; described line protector comprises the plunger member that is arranged in slidably in the chamber; described plunger member is fixedly coupled to described power line; described chamber has the bias voltage medium; described bias voltage medium is arranged in the described chamber and can compresses with respect to moving of described chamber in response to described plunger member basically, and described bias voltage dielectric response applies biasing force in affacting the load on the described power line on described power line.
43. according to the electric tool of claim 42, wherein, described bias voltage medium comprises a plurality of elastic components.
44. according to the electric tool of claim 43, wherein, described a plurality of elastic components are uneven.
45. according to the electric tool of claim 42, wherein, described bias voltage medium can freely move in described chamber in initial position, and is limited in basically in the described chamber in deviation post.
46. an electric tool comprises:
Tool body, described tool body has shell;
Motor, described motor arrangement is in described shell;
Power line, described power line is connected to described motor; And
The line protector, described line protector comprises: be arranged in the plunger member in the chamber slidably, described plunger member is fixedly coupled to described power line; The disc spring member, described disc spring member operationally connects described plunger member and described shell, providing biasing force with respect to moving of described chamber to described plunger member in response to described plunger member, the load of described biasing force antagonism to the described power line.
47. an electric tool comprises:
Tool body, described tool body has shell;
Motor, described motor arrangement is in described shell;
Power line, described power line is connected to described motor; And
The line protector; described line protector comprises the spring cam lever that the plunger member that is arranged in slidably in the chamber and an end are fixedly coupled to described shell; described plunger member has the cam feature of extending from it; described cam feature engages described spring cam lever and little by little makes described spring cam lever skew; providing cumulative biasing force with respect to moving of described chamber to described plunger member in response to described plunger member, the load of described biasing force antagonism to the described power line.
48. an electric tool comprises:
Tool body, described tool body has shell;
Motor, described motor arrangement is in described shell;
Power line, described power line is connected to described motor, described power line has the breakaway-element part, described breakaway-element partly has first halfbody and second halfbody that connects and limit confining force releasedly, described breakaway-element part can be in response to separating greater than the load of described confining force, and described confining force damages the power of described power line less than known meeting.
49., further comprise according to the described electric tool of claim 48:
Tether member, described tether member are fixedly coupled to described first halfbody and described second halfbody of described power line, and at described breakaway-element part after separating, described tether member keeps described first halfbody and described second halfbody.
50. according to the described electric tool of claim 49, wherein, described tether member limits the tether power that keeps described first halfbody and described second halfbody, described tether power is greater than described confining force.
CN200980129892.2A 2008-06-30 2009-06-29 Cord protector for power tools Expired - Fee Related CN102113185B (en)

Applications Claiming Priority (7)

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US12/164,621 2008-06-30
US12/164,650 2008-06-30
US12/164,650 US8348695B2 (en) 2006-10-30 2008-06-30 Cord protector for power tools
US12/164,584 2008-06-30
US12/164,621 US8035955B2 (en) 2006-10-30 2008-06-30 Cord protector for power tools
US12/164,584 US7727003B2 (en) 2006-10-30 2008-06-30 Cord protector for power tools
PCT/US2009/049032 WO2010002776A2 (en) 2008-06-30 2009-06-29 Cord protector for power tools

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EP2301119A2 (en) 2011-03-30
WO2010002776A2 (en) 2010-01-07
CN102113185B (en) 2013-12-18
EP2301119B1 (en) 2015-05-13
WO2010002776A3 (en) 2010-04-01
EP2301119A4 (en) 2013-01-09

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