CN103170911B - Protective hood anti-rotation lock - Google Patents
Protective hood anti-rotation lock Download PDFInfo
- Publication number
- CN103170911B CN103170911B CN201210562783.3A CN201210562783A CN103170911B CN 103170911 B CN103170911 B CN 103170911B CN 201210562783 A CN201210562783 A CN 201210562783A CN 103170911 B CN103170911 B CN 103170911B
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- China
- Prior art keywords
- clamping
- torsion
- clamping element
- unit
- protective cover
- 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.)
- Expired - Fee Related
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B23/00—Portable grinding machines, e.g. hand-guided; Accessories therefor
- B24B23/02—Portable grinding machines, e.g. hand-guided; Accessories therefor with rotating grinding tools; Accessories therefor
- B24B23/028—Angle tools
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
- B24B55/04—Protective covers for the grinding wheel
- B24B55/05—Protective covers for the grinding wheel specially designed for portable grinding machines
- B24B55/052—Protective covers for the grinding wheel specially designed for portable grinding machines with rotating tools
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding-Machine Dressing And Accessory Apparatuses (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The present invention relates to the protective hood anti-rotation lock of a kind of toolroom machine, especially angle grinder, it includes：At least one is provided for fixing to clamp protective cover unit（14a；14b；14c；14d；14e）Clamping unit（16a；16b；16c；16d；16e）, the clamping unit include at least one clamping element（18a；18b；18c；18d；18e）With at least one and clamping element（18a；18b；18c；18d；18e）The other clamping element of mating reaction（20a；20b；20c；20d；20e）；At least one anti-twist cell（22a；22b；22c；22d；22e）, it has at least one anti-torsion element（24a；24b；24c；24d；24e）；It is used for at least one according to clamping element（18a；18b；18c；18d；18e）And/or other clamping element（20a；20b；20c；20d；20e）Motion make anti-torsion element（24a；24b；24c；24d；24e）The motion coupling unit of motion（26a；26b；26c；26d；26e）.It is proposed that, the motion coupling unit（26a；26b；26c；26d；26e）Including at least one energy storage elements（28a；28b；28c；28d；28e）.
Description
Technical field
The present invention relates to a kind of protective hood anti-rotation lock.
Background technology
The protective hood anti-rotation lock of a kind of toolroom machine, especially angle grinder as known in the A1 of WO 2008/058910, it
Including：One clamping unit for being provided for fixing to clamp protective cover unit, the clamping unit includes a clamping element and one
The individual other clamping element with clamping element mating reaction；One anti-twist cell, it has an anti-torsion element；With one
The individual motion coupling unit for being used to move anti-torsion element according to the motion of clamping element and/or other clamping element.
The content of the invention
The present invention relates to the protective hood anti-rotation lock of a kind of toolroom machine, especially angle grinder, it includes：At least one sets
Put the clamping unit for fixing to clamp protective cover unit, the clamping unit include at least one clamping element and at least one with
The other clamping element of clamping element mating reaction；At least one anti-twist cell, it have at least one anti-torsion element,
The especially at least one anti-torsion element that separates and dividually constituted with other clamping element with clamping element；At least
One is used for according to the motion of clamping element and/or other clamping element, especially in accordance with clamping element relative to other
The motion of clamping element makes the motion coupling unit of anti-torsion element motion.
It is proposed that, motion coupling unit includes at least one energy storage elements.It is particularly preferred that motion coupling is single
Member is arranged for making anti-torsion element act on anti-torsion element against energy storage elements at least one running status
On power at least move in an anti-torsiversion." setting " especially should be understood to special design and/or special configuration.
Term " clamping unit " should especially be defined to a unit herein, and it is incited somebody to action by shape sealed and/or by force closure
Protective cover unit is fixed on the clamping neck of toolroom machine, especially toolroom machine to protect operator during workpiece is processed.
Here the mating reaction preferably by clamping element and other clamping element produces the folder for fixing to clamp protective cover unit
Clamp force.Clamping element may be constructed such that fishbolt, clamp lever, snap lock element etc. herein.Other clamping
Element is preferably constructed in bail.The bail is preferably by the sealed connected mode of material herein, such as by welding
Connected mode, bonding connection mode etc. are fixed on protective cover unit.But it is also recognized that it is configured to the other of bail
Clamping element seems that significant connected mode is fixed on protective cover unit by one for technical staff.
Statement " anti-twist cell " should especially limit a unit herein, and it is in a knife for being arranged on toolroom machine
Have to connect by shape sealed and/or force closure in the case of the process tool in reception device is damaged and farthest prevent to prevent
Shield unit in a confined state relative to toolroom machine clamping neck torsion, especially to clamping unit be additionally carried out resistance
Only.It is particularly preferred that the shape sealed of anti-twist cell and/or the anti-torsion element that connects through of force closure are arranged at one
The cooperation in anti-torsion dead slot on the clamping neck of toolroom machine is realized." situation that process tool is damaged " especially should herein
Ruptured when being interpreted as the process tool in the operation of toolroom machine, wherein, each process tool fragment is due to the rotation of process tool
Outwards dish out herein.Preferably, the position of the clamping neck relative to toolroom machine of protective cover unit is damaged in process tool
Farthest it is kept by anti-twist cell during situation.
Term " motion coupling unit " should especially be defined to a unit herein, and the unit is arranged for one
Individual element, especially clamping element and/or other clamping element are moved and turned along at least one of at least one direction of motion
An other element dividually constituted with the element, especially anti-torsion element are turned to along the direction of motion and/or edge
At least one motion of at least one the other direction of motion." energy storage elements " especially should be understood to one herein
Individual element, the element is arranged for because the motion of an other element, especially anti-torsion element is deposited against a power
Store up potential energy and the potential energy is output to anti-torsion in the form of kinematics energy at least one running status
On element.Energy storage elements may be constructed such that gas spring, hydraulic spring etc. herein.But it is also recognized that energy
Memory element is configured to another for technical staff seem significant design form.By the protective cover according to the present invention
The design form of anti-rotation lock can be realized to the effective of instrument operators and especially safe protection to prevent in toolroom machine
Operation in the process tool that rotates and/or the feelings especially for example burst apart in the case where process tool is damaged in process tool
To prevent the fragment flown here towards operator of process tool under condition.In addition can be advantageously due to anti-torsion element and clamping element
And/or the motion relevance of other clamping element realizes anti-torsion element to the safety movement in anti-torsiversion.In addition may be used
Advantageously to realize at least basic of anti-torsion element due to protective cover unit fixing to clamp on the clamping neck of toolroom machine
Upper automatically motion.Thus, it is possible to be advantageously carried out high operation comfort.
It is further recommended that, motion coupling unit is arranged for the clamping according to clamping element at least one running status
The change of the distance between face and the other clamping face of clamping element makes anti-torsion element at least move to an anti-twist lock
In position.The anti-torsion element is at least generally transverse to the anti-twist motion direction motion of anti-torsion element herein.It is anti-to turn round
Turn the anti-twist motion direction of element preferably in protective cover unit folder fixed to clamp by clamping unit in toolroom machine
The driven axis extension of the driven unit of toolroom machine is at least substantially orthogonal in state on tight neck.It is particularly preferred that anti-turn round
Turn radial direction extension of the direction of motion along driven axis.Therefore, motion coupling unit is arranged for making anti-torsion element
Between the clamping face for clamping face and other clamping element according to clamping element apart from varying motion to anti-torsion element
An anti-torsiversion in after at least along one be at least generally transverse to anti-torsion at least one running status
The direction of direction of motion extension is moved in an anti-twist lock position." anti-twist lock position " especially should herein
A position of anti-torsion element is interpreted as, anti-torsion element is farthest prevented against anti-twist motion side in the position
To motion, anti-torsion element moved in anti-torsiversion along anti-twist motion direction.The clamping face of clamping element and another
At least at least substantially hung down at one along one especially at least in a running status in the clamping face of outer clamping element
The straight circumferencial direction extended in driven axis is set at interval relative to each other.It is particularly preferred that the clamping face of clamping element and
Move to fix to clamp protective cover unit towards each other in the clamping face of other clamping element.By according to the anti-of the present invention
The design of shield anti-rotation lock can be realized anti-advantageous by the motion of anti-torsion element by motion coupling unit
Reverse function and realize other locking function, such as the axial retention function or radial direction stopping function of anti-torsion element simultaneously.
Therefore the reliable position stop of anti-torsion element advantageously can be at least realized in the anti-torsiversion of anti-torsion element.
Suggest otherwise, energy storage elements are supported on anti-torsion element with an end and with an other end
It is supported on other clamping element.The end preferable shape of the energy storage elements is sealed herein, force closure and/or material
Material is fixed on anti-torsion element in locking manner.The other end preferable shapes of the other energy storage elements is sealed, force closure
Ground and/or material are fixed on other clamping element in locking manner.Therefore the power that energy storage elements can be advantageously carried out exists
Effect on anti-torsion element.
Advantageously, anti-torsion element at least relative to clamping element and/or relative to other clamping element swingably
It is supported by.Part arrangement and energy stores member of the preferably anti-torsion element due to energy storage elements on anti-torsion element
Part is swingably supported by the part arrangement of other clamping element.In the protective hood anti-rotation lock according to the present invention
In one conversion embodiment, anti-torsion element preferably by anti-twist cell supporting member relative to clamping element and/or
Swingably it is supported by relative to other clamping element.Advantageously anti-torsion element can be swung by motion coupling unit
Move in anti-torsiversion.Therefore the arrangement of saving part of the anti-torsion element on clamping unit can be realized.
It is particularly preferred that energy storage elements are configured to spring element." spring element " especially should be understood to one
Individual macroscopic element, there is at least one can flexibly change at least 10% in normal running status, especially extremely for it
Few 20%, preferably at least 30% and particularly advantageously at least 50% development length, and it especially produces one and the extension is long
The change correlation of degree and counter-force preferably proportional to the change, the counter-force and the change adverse effect." the extension length of element
Degree " especially should be understood to the ultimate range of two points of the upright projection of the element in one plane.It is " macroscopic
Element " especially should be understood to there is at least 1mm, especially at least 5mm and the preferably at least element of 10mm development length.
It is particularly preferred that spring element is configured to spring leaf.In the shift design side of the protective hood anti-rotation lock according to the present invention
In case, spring element is preferably constructed in helix torsion spring or helical compression spring.But it is also recognized that spring element has
Another seems significant design for technical staff, such as the design of involute spring, butterfly spring etc.
Scheme.Motion coupling unit with low cost can be advantageously carried out by the design according to the present invention.
It is further recommended that, the other clamping element has at least one receiving area, and anti-torsion element exists at least in part
It is arranged in the unlocked position of anti-torsion element in the receiving area.Preferably, the anti-torsion region of anti-torsion element is arranged on
In the unlocked position of anti-torsion element.Preferably, receiving area by other clamping element a U-shaped subregion structure
Into.But it is also recognized that receiving area is left a blank etc. by the material in other clamping element constitutes.Thus, it is possible to advantageously real
Existing compact Layout of the anti-torsion element on clamping unit, especially in the anti-torsiversion of anti-torsion element.
Advantageously, anti-torsion element has at least one axial retention region, and the axial retention region is transported at least one
It is arranged at least farthest preventing the anti-torsion element of being at least generally transverse to of anti-torsion element in row state
The anti-axially extending motion in twist motion direction.Preferably, axial retention region at least one running status with protective cover
The semicircular protective cover overlay area mating reaction of unit is farthest to prevent the axial movement of anti-torsion element.Cause
This, axial retention region is arranged at least being supported in a running status on semicircular protective cover overlay area.
This advantageously can farthest prevent the axial direction yielding of anti-torsion element, so as to advantageously by the protection according to the present invention
The realization of cover anti-rotation lock is for the high security of operator, especially in the case of process tool is damaged.
Suggest otherwise, clamping unit includes the bolt unit that at least one is used to fix to clamp protective cover unit." bolt list
Member " especially should be understood to a unit herein, and there is at least one to have the element of at least one pitch and one for it
The other element with least one pitch corresponding with the element, these elements are arranged for by interaction production
Raw one clamping force for fixing to clamp protective cover unit.Preferably, bolt unit at least includes the folder for being configured to bolt
Tight element and the screwing element that is configured to nut corresponding with the clamping element.Herein, it is configured to the spiral shell of nut
Texel part preferable shape is sealed, force closure and/or material be fixed in locking manner on other retaining element.But can also think
Arrive, screwing element is integrally formed with other clamping element, its mode is corresponding with being configured to the clamping element of screw thread
Pitch is directly opened in other clamping element.Clamping unit with low cost can be advantageously carried out.
In the shift design scheme according to the protective hood anti-rotation lock of the present invention, clamping unit is used including at least one
In the lever unit for fixing to clamp protective cover unit." lever unit " especially should be understood to a unit herein, and it has
There is at least one lever element, lever element is arranged for producing the power for being used to fix to clamp protective cover unit.It is preferred that
Ground, lever unit includes a lever element, and clamping element is eccentrically arranged in relative to an axis of oscillation of lever element
On the lever element.Lever unit may be constructed such that elbow lever unit, parallelogram lever unit or another herein
Kind seem significant lever unit for technical staff.Power transmission can be advantageously realized by lever principle to produce use
In the clamping force for fixing to clamp protective cover unit.Clamping process thus, it is possible to be advantageously carried out no instrument.Thus, it is possible to favourable
Realize high operation comfort in ground.
A kind of power tool system at least having according to protective hood anti-rotation lock of the invention is the invention also relates to, it
Including at least one toolroom machine, especially angle grinder and at least one protective cover unit.Toolroom machine is preferably constructed in portable
Toolroom machine, especially portable, hand manipulation work equipment." hand tool " especially should be understood to be used for herein
The toolroom machine of workpiece is processed, it can be transported by operator without means of transport.Hand tool, which especially has, to be less than
40kg, preferably smaller than 10kg and particularly preferably less than 7kg quality.Can be advantageously real by the design according to the present invention
Now with high security during instrument machine operation for operator.
Protective hood anti-rotation lock according to the present invention and the power tool system according to the present invention should not necessarily be limited by above-mentioned herein
Application and embodiment.Especially according to the protective hood anti-rotation lock of the present invention and/or according to toolroom machine system of the invention
System can have and the quantity of each element, part and the unit mentioned herein to meet working method described here
Different quantity.
Brief description of the drawings
Further advantage is provided by following brief description of the drawings.One embodiment of the present of invention is shown in the drawings.Accompanying drawing, explanation
Book and claim combinations get up containing big measure feature.Technical staff suitably also individually considers these features and is combined into
Significant other combination.It shows：
Fig. 1 shows the power tool system according to the present invention with schematic diagram；
Fig. 2 shows the detailed view of a protective cover unit with schematic diagram, according to the present invention power tool system according to
The protective hood anti-rotation lock of the present invention is arranged on protective cover unit；
Fig. 3 shows the anti-torsion element in the anti-twist cell of the protective hood anti-rotation lock according to the present invention with schematic diagram
Unlocked position according to the present invention protective hood anti-rotation lock detail view；
Fig. 4 shows the protective hood anti-rotation lock according to the present invention in the locked position of coupler of anti-torsion element with schematic diagram
Detail view；
Fig. 5 shows the anti-torsion of the protective cover according to the present invention in the anti-twist lock position of anti-torsion element with schematic diagram
The detail view of rotary device；
Fig. 6 shows the anti-torsion of the protective cover according to the present invention in the anti-twist lock position of anti-torsion element with schematic diagram
Another detail view of rotary device；
Fig. 7 shows the anti-torsion in the anti-twist cell of the protective hood anti-rotation lock according to the present invention of conversion with schematic diagram
Turn the detail view according to protective hood anti-rotation lock of the invention of the conversion in the unlocked position of element；
Fig. 8 has the motion coupling unit according to protective hood anti-rotation lock of the invention converted to be schematically represented out
The detail view of the protective hood anti-rotation lock according to the present invention of Fig. 8 of the conversion arrangement of energy accumulator element conversion；
Fig. 9 shows the anti-twist cell in the protective hood anti-rotation lock according to the present invention of another conversion with schematic diagram
Anti- torsion element unlocked position in another conversion according to the present invention protective hood anti-rotation lock detail view；
Figure 10 shows the anti-torsion list in the protective hood anti-rotation lock according to the present invention of another conversion with schematic diagram
The detail view of the protective hood anti-rotation lock according to the present invention of another conversion in the unlocked position of the anti-torsion element of member；
With
Figure 11 is filled with anti-reverse of the protective cover according to the present invention for being schematically represented out another conversion with clamping unit
The detail view put, the clamping unit includes at least one lever unit.
Embodiment
Fig. 1 shows a power tool system, and it includes toolroom machine 12a, a protective cover unit 14a and a protection
Cover anti-rotation lock 10a, the toolroom machine is made up of a hand tool for being configured to angle grinder.Power tool system it is anti-
Shield anti-rotation lock 10a includes：At least one is provided for the clamping unit 16a for fixing to clamp protective cover unit 14a, should
Clamping unit includes at least one clamping element 18a and at least one other clamping with clamping element 18a mating reactions is first
Part 20a；At least one anti-twist cell 22a, it has at least one anti-torsion element 24a；It is used for at least one according to folder
Tight element 18a and/or other clamping element 20a motion makes the motion coupling unit 26a of anti-torsion element 24a motions.It is anti-
Torsion element 24a is dividually constituted with clamping element 18a and dividually constituted with other clamping element 20a herein.
In the state that one is arranged on toolroom machine 12a, protective cover unit 14a is by clamping element 18a and other clamping element 20a
Mating reaction with one kind for ways and means known to technical staff at least one position by shape sealed and/or
Force closure connection is fixed to clamp one of tool fitting 74a clamping neck in toolroom machine 12a（Do not show in detail herein
Go out）On.
Being configured to the toolroom machine 12a of angle grinder also includes a hand housing 50a, a drive device housing 52a and one
Individual slave unit housing 54a.Hand herein forms housing 50a handle handle regions domain 56a a toolroom machine 12a main hand
.Top carry handle is at least substantially from hand a housing 50a join domain 58a in the direction back to join domain 58a
On extend up to a side 60a of the hand housing 50a, the side be provided be configured to angle grinder toolroom machine 12a service cable.
The housing 50a handle handle regions domain 56a principal spread direction 62a for being disposed relative to toolroom machine 12a are tilted one and are less than by hand
30 ° of angle.Another external handlebar housing 50a has the subregion 64a of an arch in addition to the handle regions domain 56a of handle, should
Arcuate section region is formed on the handle regions domain 56a of handle.Arcuate section region 64a has a L-shaped configuration
Scheme, the structural scheme is from one of handle handle regions domain 56a back to hand housing 50a join domain 58a end L-shaped
Extend towards join domain 58a direction.
One of a toolroom machine 12a driven unit 68a is configured to the output shaft 66a of main shaft from slave unit housing
54a extends out, and one can be fixed on the output shaft is used to process workpiece（It is not shown specifically herein）Process tool
（It is not shown specifically herein）.Process tool may be constructed such that grinding disc, dividing disc or polishing disk.Toolroom machine 12a includes using
In the driver element 70a for receiving toolroom machine 12a drive device housing 52a and slave unit for receiving driven unit 68a
Housing 54a.Driver element 70a is arranged for being rotatably driven process tool by driven unit 68a.Process tool can be
Here by a retaining element（It is not shown specifically herein）It is not connected rotatably to process work with output shaft 68a
Part.Therefore process tool can rotatably be driven in a kind of toolroom machine 12a operation.Driven unit 68a is single by driving
One of first 70a is being configured to little gear and driving element that be rotationally driven（It is not shown specifically herein）With one kind
It is connected for ways and means known to technical staff with driver element 70a.In addition one is provided with slave unit housing 54a
Additional hand is 72a.Additional hand 72a in a state for being installed on slave unit housing 54a transverse to toolroom machine 12a's
Principal spread direction 62a extends.
Fig. 2 shows the detailed view of the protective cover unit 14a in a state removed from toolroom machine 12a, at this
Protective cover is provided with a protective hood anti-rotation lock 10a.Protective cover unit 14a has a semicircular protective cover area of coverage
Domain 76a, the protective cover overlay area is in a state clamped on neck for being fixed on toolroom machine 12a along one about 180 °
Angular regions cover a process tool coupled with output shaft 66a.Protective cover overlay area 76a is protective cover unit 14a's
In a rotary shaft for being at least substantially orthogonal to output shaft 66a in one state for being fixed on toolroom machine 12a clamping neck
Extend in the plane of line extension.In addition protective cover unit 14a has at least one protective cover side wall 78a, the protective cover side wall
The main extended surface 80a for being at least generally transverse to protective cover overlay area 76a sets and is fixed on toolroom machine 12a's at one
Clamp the angular range in the state on neck radially along about 180 ° and surround a processing knife coupled with output shaft 66a
Tool.In addition protective cover unit 14a have one protection shroud flange 118a, it transverse to protective cover side wall 78a at least substantially
A protective cover side wall 78a side back to protective cover overlay area 76a is arranged on parallel to protective cover overlay area 76a
On.One in protective cover unit 14a is fixed on observation in the toolroom machine 12a state clamped on neck, and protective cover is convex herein
Edge 118a radially inwardly extends from protective cover side wall 78a towards output shaft 66a direction.This outer protective cover unit 14a
Including a protective cover neck 82a, the protective cover neck is arranged on the 76a of protective cover overlay area.Protective cover neck 82a is at least substantially
Perpendicular to protective cover overlay area 76a main extended surface 80a and at least substantially parallel to protective cover side wall 78a extend.Separately
Outer clamping element 20a herein shape sealed, force closure and/or material be fixed in locking manner on protective cover neck 82a.Should
Other clamping element 20a is configured to bail, and it is fixed on protective cover neck 82a outline.The other protective cover
Unit 14a has an axial retention projection 114a being integrally formed on protective cover neck 82a.Protective cover unit 14a's
One be fixed on toolroom machine 12a clamp neck on state in observe, axial retention projection 114a from protective cover neck 82a towards
Output shaft 66a direction extension.1 14a of axial retention projection is arranged for one in protective cover unit 14a herein
It is fixed in the toolroom machine 12a state clamped on neck with relative with clamping neck for ways and means known to technical staff
The axial retention groove answered（It is not shown herein）Mating reaction.
Being configured to the other clamping element 20a of bail has the fundamental region of an at least substantially annular.
Being configured to the other clamping element 20a of bail fundamental region herein has an edge at least one running status
Maximum total circumference development length that an angular range for being less than 360 ° extends.Other clamping element 20a base region
Total circumference development length in domain extends along circumferencial direction 84a herein, the circumferencial direction in protective cover unit 14a one
The individual plane extended in toolroom machine 12a state in a rotation axis for being at least substantially orthogonal to output shaft 66a
Middle extension.The other clamping element 20a has a clamping element end 86a, and the clamping element end is at least in a fortune
Circumferentially 84a is observed between an other clamping element end 88a of the other clamping element 20a in row state
Separatedly set.Clamping element end 86a and other clamping element end 88a is from the other clamping element end 88a's
Fundamental region, which is set out, is at least generally transverse to circumferencial direction 84a extensions.In addition the clamping element end 86a and other clamping
Element ends 88a is integrally formed on other clamping element 20a fundamental region.The other clamping element end 86a and
Other clamping element end 88a respectively has one in other clamping element 20a at least two reception dead slot 90a, 92a
Individual, clamping element 18a may be at least partially disposed in reception dead slot.Clamping element 18a is configured to bolt herein, it
Reception dead slot 90a, 92a are extended through in the state being arranged on other clamping element 20a.Clamping element 18a herein with
The pairing clamping element 94a mating reactions that one of clamping unit 16a is accordingly constituted with clamping element 18a.Pairing is clamped
Element 94a is configured to nut, and it has a clamping element 18a with the being configured to bolt corresponding screw thread of screw thread.Match somebody with somebody
To clamping element 94a by shape sealed, force closure and/or material is sealed is connected to other clamping element end
One of portion 88a is back to being arranged on other clamping element end 88a on clamping element end 86a side.Therefore, by general
Being configured to that the clamping element 18a of bolt is screwed into can be with for technical staff in the pairing clamping element 94a for be configured to nut
Known ways and means realize clamping element end 86a and other clamping element end 88a motions relative to each other with
Just protective cover unit 14a is fixed to clamp on tool fitting 74a clamping neck.Thus clamping unit 16a is included at least
One bolt unit 46a for fixing to clamp protective cover unit 14a.
In addition the other clamping element 20a has at least one receiving area 40a, and anti-torsion element 24a is at least partly
Ground is arranged in the receiving area in anti-torsion element 24a unlocked position.One in protective cover unit 14a is fixed on work
In the tool machine 12a state clamped on neck, seen in the plane that the rotation axis for being at least substantially orthogonal to output shaft 66a extends
Examine, receiving area 40a is made up of the subregion of an other clamping element 20a U-shaped.But it is also recognized that reception area
Domain 40a is left a blank by a material in other clamping element 20a and constituted.The anti-torsional zones of the anti-torsion element 24a herein
Domain 104a is arranged in anti-torsion element 24a unlocked position.Anti- torsiversions of the anti-torsion region 104a in anti-torsion element 24a
In order to prevent protective cover unit 14a to be coupled to relative to tool fitting 74a clamping neck torsion, protective cover is anti-to be turned round in putting
One of rotary device 10a is corresponding with anti-torsion region 104a, be arranged on the tool fitting 74a anti-torsion clamped on neck
Turn dead slot（It is not shown specifically herein）In.As known to for technical staff, tool fitting 74a clamping neck exists
Here the anti-torsion dead slot that circumferentially 84a is set with having protective hood anti-rotation lock 10a multiple distributions.These are prevented
Dead slot can homogeneously or heterogeneously circumferentially 84a be arranged on tool fitting 74a clamping neck for torsion.
In order to drive anti-torsion element 24a to prevent anti-in the case where being damaged during toolroom machine 12a is run in process tool
Shield unit 14a is reversed relative to toolroom machine 12a, and protective hood anti-rotation lock 10a includes motion coupling unit 26a.Move coupling
Closing unit 26a includes at least one energy storage elements 28a.Motion coupling unit 26a is at least one running status herein
In the power that is arranged for making anti-torsion element 24a act on anti-torsion element 24a against energy storage elements at least move
Into anti-torsion element 24a anti-torsiversion（Fig. 4）.Motion coupling unit 26a is set at least one running status
Make for the distance between the clamping face 30a according to clamping element 18a and other clamping element 20a clamping face 32a change
Anti- torsion element 24a is at least moved in an anti-torsiversion.Herein clamping element 18a clamping face 30a with addition
Clamping element 20a clamping face 32a it is opposite.Clamping element 18a clamping face 30a by one of clamping element 18a back to
The side for being configured to the clamping element 18a of bolt operation instrument side is constituted.Other clamping element 20a clamping face 32a is by pressing from both sides
A tight element ends 86a side towards the clamping element 18a for being configured to bolt is constituted.Anti- torsion element 24a is at least partly
Ground is abutted on clamping element 18a clamping face 30a.State is fixed to clamp in protective cover unit 14a, anti-torsion element
24a supporting zone 96a is at least substantially abutted on clamping element 18a clamping face 30a completely（Do not show in detail herein
Go out）.A dead slot is opened up in supporting zone 96a, the clamping element 18a of bolt is configured at least partially through the dead slot
Extension.
In addition energy storage elements 28a is fixed in anti-torsion element 24a supporting zone 96a.Therefore the energy
Memory element 28a is supported on anti-torsion element 24a with an end 34a and energy storage elements 28a is other with one
End 36a is supported on other clamping element 20a.Accordingly, it is capable to which measuring memory element 28a is spatially arranged on clamping element 18a
Clamping face 30a and other clamping element 20a clamping face 32a between.Along clamping element 18a and other clamping element
20a clamping direction 120a observations, energy storage elements 28a is fixed on anti-torsion element 24a supporting zone 96a herein
Back on clamping element 18a clamping face 30a side and being fixed on other clamping element 20a clamping face 32a.
Energy storage elements 28a is configured to spring element 38a.Energy storage elements 28a is configured to spring herein
Piece, it has the design form of a substantially V-arrangement at least one non-state loaded.Therefore the energy storage elements
28a has at least two leg 98a, 100a, and they are mutual by the subregion 102a of an energy storage elements 28a arch
Connection（Fig. 3）.Energy storage elements 28a leg 98a, 100a and the subregion 102a of arch are integratedly connected with each other.These
One in leg 98a, 100a be fixed on anti-torsion element 24a supporting zone 96a and in these legs 98a, 100a one
It is individual to be fixed on other clamping element 20a clamping face 32a（Fig. 3）.Anti- torsion element 24a is at least relative to clamping element
18a and/or swingably it is supported by relative to other clamping element 20a.Anti- torsion element 24a is by energy stores herein
Element 28a is swingably supported by relative to clamping element 18a and/or other clamping element 20a.Anti- torsion element 24a's
Axis of oscillation is made up of the subregion 102a of energy storage elements 28a arch.But it is also recognized that anti-torsion element
24a is swingably supported by by a hinge-unit relative to clamping element 18a and/or other clamping element 20a.At this
In the hinge-unit can be for example including a supporting bolt, the supporting bolt is arranged on other clamping element 20a and connect
It is received on one of the hinge-unit supporting slice being arranged on anti-torsion element 24a.
In addition the anti-torsion element 24a has at least one axial retention region 42a, and it is at least one running status
It is arranged at least farthest preventing anti-torsion element 24a's from being at least generally transverse to the anti-of anti-torsion element 24a
The axially extending motions of twist motion direction 44a（Fig. 6）.Axial retention region 42a is at least generally transverse to anti-torsion herein
Turn element 24a supporting zone 96a extensions.Anti- torsion element 24a is turned round from anti-torsion element 24a unlocked position along anti-
The anti-twist motion direction 44a for turning element 24a is moved in anti-torsion element 24a anti-torsiversion.In protective cover unit 14a
One be fixed in the tool fitting 74a state clamped on neck and observe, axial retention region 42a at least substantially puts down
The plane extension that row extends in the rotation axis for being at least substantially orthogonal to output shaft 66a.Other axial retention region 42a is at least
It is arranged essentially parallel to protective cover unit 14a protective cover overlay area 76a extensions.Axial retention region 42a is arranged for
It is supported at least one running status on protective cover unit 14a tool fitting 74a while preventing anti-torsion element 24a
Axial movement.
In order to which protective cover unit 14a is fixed on toolroom machine 12a, protective cover neck 82a is pulled to tool fitting 74a
Clamping neck on.Then the clamping element 18a of bolt is configured to by screwing and by with being configured to the other of bail
Clamping element 20a mating reaction is to realize protective cover neck 82a for ways and means known to technical staff and thus protect
Cover unit 14a fixing to clamp on tool fitting 74a clamping neck.During fixing to clamp, spatially it is arranged on
Energy storage elements 28a between clamping element 18a clamping face 30a and other clamping element 20a clamping face 32a is pressed
Contracting.Therefore, anti-torsion element 24a is due to energy storage elements 28a design and because energy storage elements 28a is anti-
Fixation on torsion element 24a supporting zone 96a and relative to clamping element 18a and relative to other clamping element
20a towards tool fitting 74a clamping neck are moved.Anti- torsion element 24a anti-torsion region 104a is therefore from other
Clamping element 20a receiving area 40a（Fig. 4）Swing to one of tool fitting 74a anti-torsion dead slot of clamping neck（
Here it is not shown specifically）In.Because the clamping element 18a for being configured to bolt is screwed after anti-torsion region 104a is swung in,
Clamping direction 120as of the anti-torsion element 24a along clamping element 18a and other clamping element 20a is moved.Prevent herein
Protective cover neck inside diameters of the torsion region 104a along protective cover neck 82a.Therefore, along being at least substantially orthogonal to output shaft
The direction observation of 66a rotation axis extension, produces the overlapping of anti-torsion region 104a and protective cover neck 82a.It is achieved in preventing
Torsion element 24a radial stop, radial stop maximum journey in the anti-torsiversion of an anti-torsion element 24a clamping lock
Degree ground prevents anti-torsion element 24a radial motion（Fig. 5）.
The embodiment of conversion is shown in Fig. 7 to 11.Substantially the same part, feature and functional principle is marked with identical
Reference.In order to distinguish these embodiments, the reference addition letter a to e to embodiment.Following explanation is substantially
It is limited to the difference with the first embodiment in Fig. 1 to 6, wherein, on keeping constant part, feature and function to may be referred to figure
The description of first embodiment in 1 to 5.
Fig. 7 shows a toolroom machine for being configured to angle grinder（It is not shown specifically herein）Conversion protective cover it is anti-reverse dress
Put 10b.Protective hood anti-rotation lock 10b includes：At least one is provided for fixing to clamp protective cover unit 14b（Herein only
Partly show）Clamping unit 16b, the clamping unit include at least one 8b of clamping element 1 and at least one and clamp first
The other clamping element 20b of part 18b mating reactions；At least one anti-twist cell 22b, it has at least one anti-torsion member
Part 24b；It is used to make anti-torsion element according to clamping element 18b and/or other clamping element 20b motion with least one
The motion coupling unit 26b of 24b motions.Moving coupling unit 26b includes at least one energy storage elements 28b.Energy stores
Element 28b is configured to spring element 38b.Spring element 38b is configured to helix torsion spring herein.It is configured to spiral torsional
The spring element 38b of power spring includes two legs 98b, 100b.One in these legs 98b, 100b is fixed on anti-torsion element
One on 24b supporting zone 96b and in these legs 98b, 100b be fixed on other clamping element 20b clamping element
On the 86b of end.A spring element 38b central axis is at least substantially orthogonal to clamping element 18b and other clamping member
Part 20b clamping direction 120b extension, spring element 38b due to clamping element 18b and other clamping element 20b relative to each other
Motion and around the central axis by torsion.Herein it is contemplated that the spring element 38b for being configured to helix torsion spring is set
Put on a supporting bolt being integrally formed on other clamping element 20b, the supporting bolt for example forms anti-torsion element
On 24b axis of oscillation.
Energy storage elements 28bs of the Fig. 8 relative to protective hood anti-rotation lock 10b arrangement shown in the figure 7 is shown
A kind of protective hood anti-rotation lock 10b energy storage elements 28b ' conversion arrangement.Energy storage elements 28b ' herein by
Spring element 38b ' is configured to, it is made up of a helix torsion spring.Energy storage elements 28b ' central axis is herein
At least substantially parallel to the 8b of clamping element 1 Longitudinal extending.Spring element 38b ' is arranged on the folder for being configured to bolt herein
On the tight 8b of element 1 screw thread.Therefore, along clamping element 18b longitudinal 2 observation, spring element 38b ' is spatially arranged on
Between an one clamping element end 86b and other clamping element 20b other clamping element end 88b.Energy is deposited
An element 28b ' central axis is stored up at least parallel to clamping element 18b and other clamping element 20b clamping direction
120b extends, and spring element 38b ' is due to clamping element 18b and other clamping element 20b motion relative to each other around should
Central axis is by torsion.Being configured to the spring element 38b ' of helix torsion spring includes two leg 98b ', 100b '.These legs
One in 98b ', 100b ' be supported on protective cover unit 14b protective cover neck 82b overall diameter and these legs 98b ',
One in 100b ' is supported on anti-torsion element 24b.
Fig. 9 shows a toolroom machine for being configured to angle grinder（It is not shown specifically herein）One conversion protective cover it is anti-turn round
Rotary device 10c.Protective hood anti-rotation lock 10c includes：At least one is provided for fixing to clamp protective cover unit 14c（
This only partially shows）Clamping unit 16c, the clamping unit include at least one 8c of clamping element 1 and at least one and folder
The other clamping element 20c of tight element 18c mating reactions；At least one anti-twist cell 22c, it has at least one anti-torsion
Turn element 24c；It is used to make anti-torsion member according to clamping element 18c and/or other clamping element 20c motion with least one
The motion coupling unit 26c of part 24c motions.Moving coupling unit 26c includes at least one energy storage elements 28c.Energy is deposited
Storage element 28c is configured to spring element 38c.Spring element 38c is configured to compression spring herein.Compression spring is constructed
For helical spring.The spring element 38c for being configured to compression spring is supported on one of other clamping element 20c in addition herein
Clamping element end 88c and anti-torsion element 24c supporting zone 96c on.Anti- torsion element 24c is by anti-twist cell
22c hinge-unit 106c is swingably supported by relative to clamping element 18c and/or other clamping element 20c.Hinge list
First 106c includes a supporting slice 108c that integratedly the clamping element 20c other with this is constituted, one of hinge-unit 106c
Integratedly it is coupled to the supporting zone 96c supporting bolt 110c constituted in the supporting slice.But it is also recognized that supporting bolt 110c by
One element dividually constituted with supporting zone 96c is constituted and/or supporting slice 108c and supporting zone 96c is integrally formed,
Supporting bolt 110c is coupled in the supporting slice.
Figure 10 shows a toolroom machine for being configured to angle grinder（It is not shown specifically herein）One conversion protective cover prevent
Torsion device 10d.Protective hood anti-rotation lock 10d includes：At least one is provided for fixing to clamp protective cover unit 14d
（Only partially show herein）Clamping unit 16d, the clamping unit include at least one clamping element 18d and at least one with
The other clamping element 20d of clamping element 18d mating reactions；At least one anti-twist cell 22d, it is anti-with least one
Torsion element 24d；It is used to make anti-torsion according to clamping element 18d and/or other clamping element 20d motion with least one
The motion coupling unit 26d of element 24d motions.Moving coupling unit 26d includes at least one energy storage elements 28d.Energy
Memory element 28d is made up of air pressure or hydraulic spring.Energy storage elements 28d is supported on other clamping element 20d herein
An other clamping element end 88d and anti-torsion element 24d supporting zone 96d on.Anti- torsion element 24d is by anti-
Twist cell 22d hinge-unit 106d is relative to clamping element 18d swingably and/or relative to other clamping element
20d is swingably supported by.Hinge-unit 106d includes a supporting slice that integratedly the clamping element 20d other with this is constituted
One of 108d, hinge-unit 106d is integratedly coupled in the supporting slice with the supporting zone 96d supporting bolt 110d constituted.But
Be it is also recognized that supporting bolt 110d constituted by one with the supporting zone 96d elements dividually constituted and/or supporting slice 108d and
Supporting zone 96d is integrally formed, and supporting bolt 110d is coupled in the supporting slice.
Figure 11 shows a toolroom machine for being configured to angle grinder（It is not shown specifically herein）One conversion protective cover prevent
Torsion device 10e.Protective hood anti-rotation lock 10e includes：At least one is provided for fixing to clamp protective cover unit 14e
（Only partially show herein）Clamping unit 16e, the clamping unit include at least one clamping element 18e and at least one with
The other clamping element 20e of clamping element 18e mating reactions；At least one anti-twist cell 22e, it is anti-with least one
Torsion element 24e；It is used to make anti-torsion according to clamping element 18e and/or other clamping element 20e motion with least one
The motion coupling unit 26e of element 24e motions.Moving coupling unit 26e includes at least one energy storage elements 28e.Clamp
Unit 16e includes the lever unit 48e that at least one is used to fix to clamp protective cover unit 14e.Clamping element 18e quilts herein
It is configured to gripping bow.It is configured to clamp lever members of the clamping element 18e of gripping bow with an end relative to lever unit 48e
Part 112e supporting axis are eccentrically arranged on clamp lever element 112e.Clamping element 18e is set with an other end
Put in anti-torsion element 24e receiving sheet 114e.
Claims (9)
1. the protective hood anti-rotation lock of toolroom machine, it includes：At least one is provided for fixing to clamp protective cover unit (14a；
14b；14c；14d；Clamping unit (16a 14e)；16b；16c；16d；16e), the clamping unit includes at least one clamping member
Part (18a；18b；18c；18d；18e) and at least one and clamping element (18a；18b；18c；18d；18e) mating reaction is another
Outer clamping element (20a；20b；20c；20d；20e)；At least one anti-twist cell (22a；22b；22c；22d；22e), exist
One process tool for being arranged in the tool fitting of toolroom machine damage in the case of by shape sealed and/or force closure
Connection farthest prevents protective cover unit (14a；14b；14c；14d；14e) relative to toolroom machine in a confined state
Clamping neck torsion, it have at least one anti-torsion element (24a；24b；24c；24d；24e)；It is used for basis with least one
Clamping element (18a；18b；18c；18d；18e) and/or other clamping element (20a；20b；20c；20d；Motion 20e) makes
Anti- torsion element (24a；24b；24c；24d；24e) motion coupling unit (the 26a of motion；26b；26c；26d；26e), its feature
It is, the motion coupling unit (26a；26b；26c；26d；26e) include at least one energy storage elements (28a；28b；
28c；28d；28e)；Wherein described energy storage elements are arranged for the motion due to an other element against a power
Store potential energy and the potential energy is output to anti-torsion in the form of kinematics energy at least one running status
Turn element (24a；24b；24c；24d；On 24e), and the energy storage elements (28a；28b；28c；28d；28e) with one
End (34a；34b；34c；34d；34e) it is supported on anti-torsion element (24a；24b；24c；24d；It is on 24e) and another with one
Outer end (36a；36b；36c；36d；36e) it is supported on other clamping element (20a；20b；20c；20d；On 20e)；It is described
Anti- torsion element is dividually constituted with the clamping element and dividually constituted with the other clamping element.
2. protective hood anti-rotation lock according to claim 1, it is characterised in that the motion coupling unit (26a；26b；
26c；26d；26e) it is arranged at least one running status according to clamping element (18a；18b；18c；18d；18e)
Clamping face (30a；30b；30c；30d；30e) with other clamping element (20a；20b；20c；20d；Clamping face (32a 20e)；
32b；32c；32d；The distance between 32e) change makes anti-torsion element (24a；24b；24c；24d；24e) at least move to one
Prevent in twisting locked position.
3. according to the protective hood anti-rotation lock of claim 1 or 2, it is characterised in that the anti-torsion element (24a；24b；
24c；24d；24e) at least relative to clamping element (18a；18b；18c；18d；18e) and/or other clamping element (20a；
20b；20c；20d；20e) swingably it is supported by.
4. according to the protective hood anti-rotation lock of claim 1 or 2, it is characterised in that the energy storage elements (28a；28b；
28c；28e) it is configured to spring element (38a；38b；38c；38e).
5. according to the protective hood anti-rotation lock of claim 1 or 2, it is characterised in that the other clamping element (20a；
20b；20c；20d；20e) there is at least one receiving area (40a；40b；40c；40d；40e), the anti-torsion element (24a；
24b；24c；24d；24e) at least in part in the anti-torsion element (24a；24b；24c；24d；Set in unlocked position 24e)
Put in the receiving area.
6. according to the protective hood anti-rotation lock of claim 1 or 2, it is characterised in that the anti-torsion element (24a；24b；
24c；24d；24e) there is at least one axial retention region (42a；42b；42c；42d；42e), the axial retention region is extremely
It is arranged at least farthest preventing the anti-torsion element (24a in a few running status；24b；24c；24d；
24e) be at least generally transverse to the anti-torsion element (24a；24b；24c；24d；Anti- twist motion direction 24e)
(44a；44b；44c；44d；44e) axially extending motion.
7. according to the protective hood anti-rotation lock of claim 1 or 2, it is characterised in that the clamping unit (16a；16b；16c；
16d) including at least one is used to fix to clamp the protective cover unit (14a；14b；14c；Bolt unit (46a 14d)；
46b；46c；46d).
8. according to the protective hood anti-rotation lock of claim 1 or 2, it is characterised in that the clamping unit (16e) is included at least
One lever unit (48e) for fixing to clamp protective cover unit (14e).
9. with least one according to the power tool system of the protective hood anti-rotation lock of one of above claim, the toolroom machine
System includes at least one toolroom machine and at least one protective cover unit (14a；14b；14c；14d；14e).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102011089754.2 | 2011-12-23 | ||
| DE201110089754 DE102011089754A1 (en) | 2011-12-23 | 2011-12-23 | Guard anti |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103170911A CN103170911A (en) | 2013-06-26 |
| CN103170911B true CN103170911B (en) | 2017-08-11 |
Family
ID=47227511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210562783.3A Expired - Fee Related CN103170911B (en) | 2011-12-23 | 2012-12-21 | Protective hood anti-rotation lock |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP2607014B1 (en) |
| CN (1) | CN103170911B (en) |
| DE (1) | DE102011089754A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102012214834A1 (en) * | 2012-08-21 | 2014-02-27 | Robert Bosch Gmbh | Guard device |
| CN107553416B (en) * | 2017-10-25 | 2024-03-15 | 锐奇控股股份有限公司 | Electric tool protection casing adjusting device and electric tool |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1462222A (en) * | 2001-05-18 | 2003-12-17 | 罗伯特·博施有限公司 | Hand electric tool comprising guard |
| CN102066051A (en) * | 2008-06-16 | 2011-05-18 | 罗伯特·博世有限公司 | Power tool, particularly a hand-held power tool |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002070201A1 (en) * | 2001-03-07 | 2002-09-12 | Sparky Eltos | Safety guard for angle grinders |
| DE102006053303A1 (en) * | 2006-11-13 | 2008-05-15 | Robert Bosch Gmbh | Hand tool for a rotating tool with protective cover |
| DE102006053305A1 (en) | 2006-11-13 | 2008-05-15 | Robert Bosch Gmbh | Hand tool with protective hood, in particular angle grinder |
-
2011
- 2011-12-23 DE DE201110089754 patent/DE102011089754A1/en not_active Withdrawn
-
2012
- 2012-11-08 EP EP12191781.9A patent/EP2607014B1/en not_active Not-in-force
- 2012-12-21 CN CN201210562783.3A patent/CN103170911B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1462222A (en) * | 2001-05-18 | 2003-12-17 | 罗伯特·博施有限公司 | Hand electric tool comprising guard |
| CN102066051A (en) * | 2008-06-16 | 2011-05-18 | 罗伯特·博世有限公司 | Power tool, particularly a hand-held power tool |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103170911A (en) | 2013-06-26 |
| DE102011089754A1 (en) | 2013-06-27 |
| EP2607014A2 (en) | 2013-06-26 |
| EP2607014B1 (en) | 2017-03-01 |
| EP2607014A3 (en) | 2014-10-01 |
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Granted publication date: 20170811 Termination date: 20211221 |