CN1291535A - Outer-shell of electric appliance especially electric power tool - Google Patents

Outer-shell of electric appliance especially electric power tool Download PDF

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Publication number
CN1291535A
CN1291535A CN 00134219 CN00134219A CN1291535A CN 1291535 A CN1291535 A CN 1291535A CN 00134219 CN00134219 CN 00134219 CN 00134219 A CN00134219 A CN 00134219A CN 1291535 A CN1291535 A CN 1291535A
Authority
CN
China
Prior art keywords
shell
electric wire
outlet
housing department
bend pipe
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
CN 00134219
Other languages
Chinese (zh)
Other versions
CN1179826C (en
Inventor
H·克隆多菲尔
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of CN1291535A publication Critical patent/CN1291535A/en
Application granted granted Critical
Publication of CN1179826C publication Critical patent/CN1179826C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02GINSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/02Details
    • H02G3/08Distribution boxes; Connection or junction boxes
    • H02G3/18Distribution boxes; Connection or junction boxes providing line outlets

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Indoor Wiring (AREA)
  • Insertion, Bundling And Securing Of Wires For Electric Apparatuses (AREA)
  • Installation Of Indoor Wiring (AREA)
  • Suspension Of Electric Lines Or Cables (AREA)
  • Portable Power Tools In General (AREA)

Abstract

The invention provides a casing of an electric machine, in particular a motor-driven tool, includes a casing (12) having a leadout hole (19) for electric connection cables (18), which are threaded through a bent protection sleeve (20) connected with the leadout hole, wherein a cable portion (25) is guided in the vertical direction by a vertically long stretching hose (22) of the sleeve in the leadout direction specified thereby, and the leadout hole (19) is arranged so that the connection cables (18) are guided along the casing wall (26) throughout the division specified outside the casing (11).

Description

Electric appliance casing and especially electric tool shell
The present invention is based on as the described electric appliance casing of claim 1 preorder and especially electric tool shell.
At this electric appliance casing and outstanding base is in the electric tool shell, and the anti-bend pipe that band connection electric wire is worn the shell outlet mainly is positioned on the shell end, and as in angel grinder, it is positioned on the handle.Anti-bend pipe and is connected electric wire and gives prominence to there prevents that wherein the length of freely giving prominence to of bend pipe is about 80 millimeters.If do not use electric tool, then shell allows to jump and tightly be wrapped on the shell and outstanding base is on the shell part connecting an electric wire usually.Therefore, connect electric wire and in the shell exit region or in the local exit region of shell, born very big bending.Therefore, produced usually as the angle of bends that equal 180 degree with less than 20 millimeters bending radius.Because it is crooked very tempestuously to connect electric wire, so occurred the electric wire fracture usually in electric wire is worn the shell exit region.In most of the cases, electric tool is placed in the tool box when not using, and wherein being projected into the connection electric wire of shell on distolateral here is a kind of obstacle.Thereby want aggressive bend to connect electric wire usually subsequently, so that can at an easy rate electric tool be installed in the tool box.In addition disadvantageously, because of above-mentioned reason must the tool box and sell goods package design must be bigger, as and required, and do so just for the exceptional space size of minimum being provided for the connection electric wire of giving prominence to according to the peculiar size of electric tool.
By comparison, having the electric appliance casing of the present invention of claim 1 feature and especially electric tool shell has to make better and connects the advantage that electric wire does not bear too high bending.Direction is suitably offered the electric wire Way out and it is arranged essentially parallel to shell wall, and temporary transient recurvation is also crossed crooked tempestuously subsequently when having avoided the connection electric wire thus on being crimped onto shell or shell part.By design connect electric wire mainly around shape and the especially shape of shell part of shell of bending, can also limit the little and admissible bending radius of most energy.Obviously reduced the electric wire risk of breakage and perhaps can adopt simpler and thereby cheaper connection electric wire and the anti-bend pipe of cost.
As for wherein in that the time spent is not put into the presumable tool box of electric tool and the packing of selling goods, can advantageously dwindle the case size or the Package size that are used for most of electric tools, this is because can save the exceptional space that may be used to be projected into the outer connection electric wire of shell in ground according to the present invention.In this tool box and packing, caused material to be saved and weight saving thus.
By the described scheme of other claim, can advantageously improve and improve the described shell of claim 1.
In following specification, described embodiment causes description the present invention in detail with reference to accompanying drawing, wherein:
Fig. 1 is the diagrammatic side view of an electric tool (is angel grinder at this);
Fig. 2 is the electric tool vertical view along direction of arrow II shown in Fig. 1 bottom side;
Fig. 3 is the diagrammatic side view that roughly is equal to view shown in Figure 1, has been wound onto on the shell but connect electric wire;
Fig. 4 is the schematic diagram along the direction of arrow IV of Fig. 3;
Fig. 5 is the signal amplification view of local V shown in Figure 1.
The embodiment explanation
In the drawings, show the hand held electric tool that is designed to hand-operated electric tool 10 structures as the electrical equipment example, wherein electric tool 10 be designed in an illustrated embodiment angel grinder shape.Obviously, in addition still can adopt electrical equipment such as hand-operated tools and the especially electric tool of other form.For example, it can be the grinding tool, spray gun, PUR spray gun, hot-air blowpipe of drilling machine, cramp used in mending pottery or porcelain, planing tool, other form, electronic cut or electronic kitchen cutter, electronic kitchen mix lamps such as device like instrument.
In the illustrated embodiment of the electric tool 10 of angel grinder form; it has a shell 11 that comprises a housing department 12 and a gear housing 13; in described gear housing 13, be placed with unshowned bevel gearing; its the drive shaft emery wheel that can not see 14 rotates, and the protected cover 15 of the part of described emery wheel is gone along with sb. to guard him.A handle 16 on gear housing 13 has played the effect that alleviates skilful operation.In shell 11 and especially housing department 12, a unshowned drive motor is housed, it can by switch 17 be switched on disconnect and for example power supply can be connected electric wire 18 by one and give described electronic power supply, described electric wire passes shell 11 and especially housing department 12.
Shell 11 and especially housing department 12 have an outlet 19 that is used to connect electric wire 18, connect electric wire and be pulled to the outside by described outlet in housing department 12.In shell 11 and especially housing department 12, connect electric wire 18 usually as further not having the tension structure of alleviating with illustrating.In outlet 19 zones, flexible anti-bend pipe 20 is housed, it can be designed to the shape of elastic hose or spiral spring piece.Connect electric wire 18 and stretch out shell 11, make connecting line not produce aggressive bend thus to a certain extent by the anti-bend pipe 20 that is fixed in shell 11 exit regions.Anti-bend pipe 20 has a flexible pipe 22 that extends along its longitudinal center's axis 21, and it is received within interior 23 being integral admittedly in outlet 19 zones with form fit ground.Anti-bend pipe 20 has one and is used to hold the through hole 24 that guiding connects the conducting line segment 25 of electric wire 18.Anti-bend pipe 20 stretches out shell 11 and especially housing department 12 about 80 millimeters, and wherein this segment length is exactly the length of lead of the wire segment 25 that guides thus.Wire segment 25 extends longitudinally in one by on the predetermined Way out of its longitudinal center's axis 21 by anti-bend pipe 20, described direction is a level in Fig. 1,2,5 view basically.Outlet 19 so is arranged in the shell wall 26, and outlet 19 longitudinal center's axis that promptly overlap with longitudinal center's axis 21 of anti-bend pipe 20 and the vertical central axis of stipulating thus of walking wire segment 25 also extend with shell wall 26 basically abreast along shell wall 26.
In addition, outlet 19 and anti-bend pipe 20 are arranged on a side 27 of housing department 12 and especially its vertical side, are preferably the bottom side of housing department 12 in the embodiment shown.Select such structure, then the flexible pipe 22 of anti-at least bend pipe 20 can abut on shell wall 26 and especially housing department 12 bottom sides 27 basically and can be supported in its length range.
Outlet 19 is configured to from 12 right-hand members 28 of the housing department shown in Fig. 1,3 one section fore-and-aft distance is arranged, thereby flexible pipe 22 ends of anti-bend pipe 20 are in the front of this end 28, or flexible pipe ends on the end or is projected into outside the end, and wherein it is roughly parallel to that horizontal shell wall 26 ground are whole to have extended about 80 millimeters outstanding length.
As shown in Figure 5, have an output 29 that protrudes on the outside at bottom side basic horizontal case extension wall 26, this part has outlet 19 and is fixing anti-bend pipe 20.In addition, output 29 can have one along shell wall 26 laterally as the wall portions 30 of extending perpendicular to shell wall ground, has comprised exporting 19 in described wall portion.In the embodiment shown, output 29 is also more outstanding than shell wall 26 in the bottom side.Can further guarantee thus can be to the retrolisthesis hand when user's grasping shell 11.And in another unshowned embodiment, output 29 outside relatively is not outstanding, but enters in the groove of shell wall 26, and wherein connecting electric wire 18 can also continue to extend along the groove on housing department 12 bottom sides.Perhaps, housing department 12 can also have the different shell wall bounce-back portion of project organization, and described connection electric wire 18 stretches out from described bounce-back portion.
In the embodiment shown, shell 11 and be that housing department 12 is designed in the electric wire exit region from transversely seeing rounded longitudinal component 31 at least, thus it can be with the drum stand that acts on the connection electric wire 18 that is rolled.
Shell 11 and especially housing department 12 be on Fig. 1,3 on that side (that relative with the drain pan wall 26 that comprises outlet 19 in the horizontal side) and be to have a recess 32 as groove in 28 zones, end in this case also, especially as illustrated in fig. 3, can be when reeling put and fixedly connected electric wire 18 by described recess or groove.
In Fig. 1,2, show and be in the electric tool 10 of up state.People can see, the outlet that connects electric wire 18 does not resemble and is arranged on shell 11 ends common, and such set-up mode is understood owing to aggressive bend, is twisted and damage connection electric wire 18, but in the present invention, connect electric wire 18 and pass shell 11 and housing department 12 is arranged especially, be roughly parallel to bottom side shell wall 26 and extend along described shell wall.By than having avoided when not using electric tool 10 and be wound up into electric wire on the shell 11 recurvation electric wire 18 and aggressive bend electric wire subsequently.Perhaps, connection electric wire 18 is predetermined by design by the direction on the coiling shell 11.By the shape of designed enclosures 11, can limit as far as possible little bending radius.When not using electric tool 10, connect electric wire 18 and can roughly on flexible pipe 22 directions of anti-bend pipe 20 be tilt and temporarily by the described electric wire of recess 32 guiding, described recess is used for fixing first lap and connects electric wire 18.Subsequently, realized from left continuation coiling among Fig. 3 this moment by continuing to connect mode on the outside that electric wire 18 twines shell 11 and especially housing departments 12.As shown in Figure 3, when reeling connection electric wire 18, overbending does not appear.This has following advantage, has promptly obviously alleviated the electric wire risk of breakage that may be caused by overbending electric wire 18.In addition, for use simpler and thereby cheaper connection electric wire 18 and the anti-bend pipe 20 of cost created precondition.Usually, the electronic tool 10 of starting building of shown type is stored in the tool box when not using and transports.In this case, in common project organization, be projected into the outer connection electric wire of shell and prevent that bend pipe is proved to be pretty troublesome.And by the design of above-mentioned special shape, situation is just different, therefore is winding to electric tool on the shell 11 when being placed into the tool box when it connects electric wire 18, has avoided the overbending of connection electric wire 18 equally.In addition, can reduce tool box and packaging size, this is because can save the space that may be used for outside the end reaches shell 11.This compact conformation has caused the material economy and the weight saving of used tool case and packing.

Claims (10)

1. an electric appliance casing and especially electric tool shell (10), it comprises that one has one and is used for a housing department (12) that connects the outlet (19) of electric wire (18), described electric wire passes an anti-bend pipe (20) that links to each other with outlet (19), wherein a wire segment (25) is managed (22) and is extended predetermined thus stretching out on the direction by a Great Wall Software of anti-bend pipe (20), it is characterized in that, outlet (19) is so to be provided with, and promptly connecting electric wire (18) can extend one section apart from glass at shell (11) outer shell wall (26).
2. shell as claimed in claim 1, it is characterized in that, outlet (19) is so to be arranged in the shell wall (26), i.e. the vertical central axis (21) of anti-bend pipe (20) and the wire segment (25) of walking and outlet (19) is along shell wall (26) and almost parallel ground extension with it.
3. shell as claimed in claim 1 or 2.It is characterized in that, the side (27) that outlet (19) and anti-bend pipe (20) are arranged on housing department (12) go up and especially vertical side on, for example be arranged on the bottom side of housing department (12).
4. as the described shell of one of claim 1-3, it is characterized in that anti-bend pipe (20) can abut in shell wall (26) at least basically and go up and supported in its length range.
5. as the described shell of one of claim 1-4, outlet (19) is configured to the end (28) of housing department (12) longitudinal pitch is arranged, thus the flexible pipe (22) of anti-bend pipe (20) terminal in the end front or the back of (28), perhaps just on this end.
6. as the described shell of one of claim 1-5, it is characterized in that, shell wall (26) has one and comprises outlet (19) and efferent (29) that keep anti-bend pipe (20), it is projected on the outside of one section housing department (12) as is projected on the outside of shell wall (26), perhaps advances to locate in the housing department (12).
7. as the described shell of one of claim 1-6, it is characterized in that described shell and to be housing department (12) at least be suitable for the drum stand of connection electric wire (18) usefulness of doing to reel by processing and forming.
8. shell as claimed in claim 7 is characterized in that, described shell and be the rounding longitudinal part (31) that housing department (12) is made into to be used to put the connection electric wire (18) that is rolled at least.
9. as the described shell of one of claim 1-8, it is characterized in that described shell is applicable to the connection electric wire (18) that fixedly is rolled by offer a recess (32) or groove in an appropriate location.
10. shell as claimed in claim 9, it is characterized in that, described shell and be that housing department (12) has recess (32) or groove at least on that side relative with the shell wall that comprises outlet (19) (26) can be when reeling puts and fixedlys connected electric wire (18) by described recess or groove.
CNB001342193A 1999-10-06 2000-10-05 Outer-shell of electric appliance especially electric power tool Expired - Fee Related CN1179826C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1999147960 DE19947960A1 (en) 1999-10-06 1999-10-06 Housing of an electrical device, in particular an electric tool
DE19947960.7 1999-10-06

Publications (2)

Publication Number Publication Date
CN1291535A true CN1291535A (en) 2001-04-18
CN1179826C CN1179826C (en) 2004-12-15

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CNB001342193A Expired - Fee Related CN1179826C (en) 1999-10-06 2000-10-05 Outer-shell of electric appliance especially electric power tool

Country Status (4)

Country Link
JP (1) JP2001138268A (en)
CN (1) CN1179826C (en)
DE (1) DE19947960A1 (en)
GB (1) GB2355119B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1756016B (en) * 2004-09-28 2012-07-04 罗伯特·博世有限公司 Cable sleeve

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005052488A1 (en) * 2005-11-03 2007-05-10 Stiebel Eltron Gmbh & Co. Kg Heater e.g. convection heater, has housing comprising air inlet grille that is provided in upper area of housing whose upper side is designed in rounded and/or curved manner, and control unit arranged at back side of heater
DE102007036233A1 (en) * 2007-08-02 2009-02-05 Metabowerke Gmbh Electric hand tool
DE102008002616A1 (en) * 2008-06-24 2009-12-31 Robert Bosch Gmbh Cable grommet for hand tool
EP2581175B1 (en) * 2011-10-11 2015-05-27 Black & Decker Inc. Cord protector for power tools

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4938642A (en) * 1988-09-02 1990-07-03 Hitachi Koki Company, Limited Portable electric router
GB9325353D0 (en) * 1993-12-10 1994-02-16 Black & Decker Inc Improved electrically powered tool

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1756016B (en) * 2004-09-28 2012-07-04 罗伯特·博世有限公司 Cable sleeve

Also Published As

Publication number Publication date
DE19947960A1 (en) 2001-04-12
GB2355119B (en) 2001-12-12
GB2355119A (en) 2001-04-11
JP2001138268A (en) 2001-05-22
CN1179826C (en) 2004-12-15
GB0024081D0 (en) 2000-11-15

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C10 Entry into substantive examination
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Granted publication date: 20041215

Termination date: 20101005