CN101745840A - Protective hood device - Google Patents
Protective hood device Download PDFInfo
- Publication number
- CN101745840A CN101745840A CN200910253610A CN200910253610A CN101745840A CN 101745840 A CN101745840 A CN 101745840A CN 200910253610 A CN200910253610 A CN 200910253610A CN 200910253610 A CN200910253610 A CN 200910253610A CN 101745840 A CN101745840 A CN 101745840A
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- China
- Prior art keywords
- protective cover
- latch elements
- kayser
- lock device
- unit
- 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.)
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- 230000001681 protective effect Effects 0.000 title claims abstract description 154
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- 230000000694 effects Effects 0.000 description 4
- 230000002349 favourable effect Effects 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 2
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- 239000000463 material Substances 0.000 description 2
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Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/08—Protective coverings for parts of machine tools; Splash guards
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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
- 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
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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
Landscapes
- 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 a protective hood device, especially a protective hood device for an angular grinder, including fixed units (10a-10t) for setting protective hoods (12a-12t) on different rotary positions respectively. According to the invention, each fixed unit (10a-10t) has a signal unit (14a-14t) for giving off at least a signal when the fixed units reach at least one defined rotary position.
Description
Technical field
The present invention relates to a kind of protective cover device.
Background technology
Known already have an angle grinding machine protective cover device that has fixed cell, and this fixed cell is provided for protective cover is fixed on each different position of rotation.
Summary of the invention
The present invention relates to a kind of protective cover device, especially angle grinding machine protective cover device, it has fixed cell, and this fixed cell is provided for protective cover is fixed on each different position of rotation.
The present invention's suggestion, fixed cell has a signal element, and this signal element is provided for sending at least one signal when reaching the position of rotation of at least one definition.At this, " signal element " should especially be interpreted as such unit, this unit be provided for targetedly to the operator send visual signal and/or particularly advantageous be to send acoustics and/or haptic signal.Can inform accurate localization to the operator with signal by means of corresponding structure, can avoid location of mistake and can improve safety in operation.
Signal element can have various those skilled in the art and think significant, as to be used to produce and/or send signal unit, for example especially electricity, electronics and/or mechanical unit.If signal element has at least one in rotational direction depressible, as to be used to produce and send acoustics and/or haptic signal kayser unit, can realize simply that then cost is favourable and firm especially, be particularly suitable for the signal element that hand held power machine moves.
At this, " kayser unit " should especially be interpreted as the unit that has latch elements, this latch elements is provided for overcoming the spring force skew of spring element targetedly, so that follow sealed ground of shape kayser then in the back and/or the groove of kayser at member of member.At this, spring element can be formed by additional machinery and/or pneumatic spring element, this spring element loads latch elements and/or also can construct integratedly with latch elements to small part, and for example its mode is that this latch elements is formed by the material that is fit to described function, spring.In addition; " can push " and should especially be interpreted as: the kayser unit can by the operator without instrument push kayser and release in other words; and therefore especially can be so that protective cover can be rotated along at least one rotation direction by the operator at least a operational mode; wherein, kayser unit kayser and release.
In another kind of design of the present invention, advise, the kayser unit has at least one latch elements, this latch elements comprises at least one lock device, this lock device is set to radially overcome the spring force skew in the kayser process, therefore can particularly advantageously react on existing structure and the member.
If the kayser unit has at least one latch elements, this latch elements has different with the protective cover function with the kayser function at least functions, then can save additional member, install expend, weight and cost.At this, " other function " should especially be interpreted as the function of separating with kayser function and protective cover function, as especially sealing function, pooling feature and/or vibration-damping function or the like.
In another kind of design, advise; the kayser unit has at least one latch elements that is formed by ring-type element; this latch elements is provided for being fixed on the protective cover and/or is fixed on the member different with protective cover, realizes simple assembling thus and especially can realize favourable kayser function in big angular range.
If that the kayser unit has is that at least one is formed by latch arm, integrally formed latch elements on protective cover at least in part; then can realize high design freedom, especially when being provided with the corresponding latch elements of latch arm by less additional member.At this, " latch arm " should especially be interpreted as the member that freely stretches out to small part, and this member is advantageously by cutting out and/or being made of the connecting plate that is shaped.
Suggestion in addition, the kayser unit has at least one latch elements, and this latch elements has at least one lock device that is used for fixing described latch elements, can realize the simple fixation of latch elements thus and providing for simple replacement of latch elements under abrasion condition.
If the kayser unit has at least one latch elements; this latch elements has the synchronous element and the lock device that is used for being coupled with the member that is different from protective cover that is used for the protective cover coupling, then can realize particularly advantageous protection and the realization particularly advantageous coordination of the lock device of correspondence mutually to lock device.
Suggestion in addition, the kayser unit has at least one latch elements that is formed by wire and/or elastomer to small part, this latch elements advantageously can be integrated in the existing structure thus.
If the protective cover device has at least one latch elements of a protective cover receiving area and kayser unit; this latch elements comprises at least one lock device; described lock device is arranged in the locking process at least in part in the skew of protective cover receiving area radially outer, then can advantageously avoid the influence of not expecting of the connection between the reception flange that the kayser unit surrounds to protective cover with by this protective cover at least to a great extent.At this, lock device especially is provided for radially inwardly acting on the protective cover.
The kayser unit can have such latch elements; this latch elements is for realizing the resiliently deflectable of its kayser function ground structure own; and/or the kayser unit advantageously has the latch elements of at least one and protective cover separate construction; described latch elements comprises the lock device that at least one supports movingly; as the ground of translation especially and/or the lock device of supporting swingably, can realize thus favourable, coordinate flexibly." with the protective cover separate construction " should especially be interpreted as: latch elements is formed by a member that separates with the most member that forms protective cover at least.
Proposed a kind of hand held power machine that has housing and protective cover device in addition, wherein, at least one signal device of signal element is integrated in the housing at least in part.At this, " integrated " should especially be interpreted as: signal device is at least partially disposed on enclosure interior and/or is formed by housing at least in part.The favourable protection of signal device can be realized by means of corresponding design, and the integrated of position can be realized saving.
Description of drawings
Other advantage is drawn by following description of drawings.Embodiments of the invention shown in the drawings.Comprise the number of characteristics combination in accompanying drawing, specification and the claim.Those skilled in the art also can consider these features separately worthily or summarize other useful combination.
Shown in the figure:
Fig. 1 is the angle grinding machine that schematically shows,
Fig. 2 is the part of protective cover device that is threaded the latch elements of connection, and this latch elements has the lock device of radial effect,
Fig. 3 is the part of protective cover device that is threaded the latch elements of connection, and this latch elements has the lock device of axial action,
Fig. 4 is a part that has the protective cover device of the lock device that is configured to ball,
Fig. 5 has the part of the protective cover device of the latch elements that is configured to the kayser dish, and this latch elements comprises the lock device of effect radially outward,
Fig. 6 has the part of the protective cover device of the latch elements that is configured to the kayser dish, and this latch elements comprises radially the inwardly lock device of effect,
Fig. 7 has to be configured to the part kayser dish, that be fixed on the protective cover device of the latch elements on the protective cover,
Fig. 8 has a part that connects the protective cover device of latch elements that be connected with protective cover, that be configured to the kayser dish by kayser,
Fig. 9 is a part that has the protective cover device of the latch elements that is formed by wire, and this latch elements has the helical form end,
Fig. 9 a is the zoomed-in view of latch elements shown in Figure 9,
Figure 10 is a part that has the protective cover device of the latch elements that is formed by wire, and this latch elements is filled in the groove,
Figure 10 a is the zoomed-in view of latch elements shown in Figure 10,
Figure 11 has the latch elements that can overcome spring motion ground supporting and the part of the protective cover device of the latch elements that formed by spring leaf alternatively,
Figure 12 is a part that has the protective cover device of the latch elements that the cylinder by Flexible Design forms,
Figure 13 is a part that has the protective cover device of imbedding the lock device in the elastomer,
Figure 14 is a part that has the protective cover device of the latch elements that radially is arranged on outside, protective cover receiving area,
Figure 15 is a part that has the protective cover device of the latch elements that partly is integrated in the housing,
Figure 15 a is the part of an amplification that has the housing of the integrated latch elements among Figure 15,
Figure 16 has the part of the protective cover device of the latch elements that is configured to encircle of effect vertically,
Figure 17 is a part that has the protective cover device that is formed on the protective cover, that be provided for resilient bias, as to be configured to latch arm latch elements,
Figure 18 is a part that has the protective cover device that is formed in rigidity latch elements on the protective cover, that be configured to latch arm,
Figure 19 is a part that has the protective cover device that is formed in rigidity latch elements on the protective cover, that be configured to latch arm, this rigidity latch elements and a latch elements acting in conjunction that forms by elastic washer,
Figure 20 has the part of the protective cover device of the latch elements of supporting swingably,
Figure 21 is a part that has the protective cover device of the latch elements that is integrated in the housing.
The specific embodiment
Fig. 1 shows a kind of hand held power machine that is made of the angle grinding machine, and it has the housing 32a and the housing 30a that form handle, and the motor of angle grinding machine is arranged in the housing 32a, and the Conical gear actuator of angle grinding machine is arranged in the housing 30a.In addition, this angle grinding machine comprises angle grinding machine protective cover device, and this angle grinding machine protective cover device has protective cover 12a and has fixed cell 10a, and this fixed cell 10a is provided for protective cover 12a is fixed on (Fig. 1 and 2) on the different position of rotation.This fixed cell 10a comprises transmission device flange 36a on the bottom side that is arranged on housing 30a, is formed in sleeve 38a and a signal element 14a who is used to produce and send acoustics and haptic signal on the protective cover 12a integratedly, and this signal element 14a has in rotational direction depressible kayser unit 16a.
This kayser unit 16a has the latch elements 18a that is formed by spring leaf, and this latch elements is threaded on the transmission device flange 36a.Yet, also can expect other fixed form in principle.First subregion on the flange surface of being threaded in from latch elements 18a, second subregion of latch elements 18a extends axially along the output shaft 40a's of angle grinding machine, the rotation 70a of this output shaft 40a is perpendicular to the described first subregion orientation, this second subregion is arranged among the groove 42a of cylindrical protrusion portion of transmission device flange 36a, and, on this second subregion, be formed with one integratedly along the radial directed of output shaft 40a, by the lock device 34a that the kayser projection forms, this lock device 34a is set to overcome contained spring power radially towards output shaft 40a resilient bias radially inwardly in the kayser process.This lock device 34a radially stretches out the periphery of the cylindric protuberance of transmission device flange 36a, and can radially inwardly sink in the free space of groove 42a in the kayser process.Lock device 34a and the latch elements 20a acting in conjunction that is formed on the protective cover 12a sleeve 38a, described latch elements 20a is arranged in the fringe region that deviates from latch elements 18a first subregion of sleeve 38a inner periphery.Latch elements 20a is formed by the recess of making by means of Sheet Metal Forming Technology.For protective cover 12a advantageously is sleeved on the cylindric protuberance of transmission device flange 36a easily by means of sleeve 38a; lock device 34a radially is offset at this, on sleeve 38a, is formed with a recess 44a of extend past entire sleeve width vertically.
If protective cover 12a is sleeved on the cylindric protuberance of transmission device flange 36a by means of sleeve 38a and this protective cover 12a is rotated; then lock device 34a will radially be offset and successively kayser therefore in the latch elements 20a that forms by recess, produced acoustics and haptic signal for the operator.That the location of protective cover 12a occurs in is predefined, by latch elements 18a, on the predetermined position, angle of 20a.
The embodiment that substitutes has been shown in Fig. 3 to 21.Indicate with identical Reference numeral on substantially the same member, feature and the functional principle.Yet,, added alphabetical a to t for the Reference numeral of these embodiment for distinguishing these embodiment.The following description mainly is limited to the difference with the embodiment shown in Fig. 1 and 2, wherein, and can be about identical member, feature and function with reference to the explanation of the embodiment among Fig. 1 and 2.
Figure 3 illustrates a kind of angle grinding machine protective cover device that has signal element 14b, this signal element 14b comprises kayser unit 16b.This kayser unit 16b has a latch elements 18b who is formed by spring leaf, this latch elements 18b be threaded in transmission device flange 36b along on the face of the axial sensing of output shaft 40b, and have along the lock device 34b axial sensing of output shaft 40b, that be shaped by projection.This lock device 34b and the latch elements 20b acting in conjunction that is formed by recess see under the installment state of protective cover 12b, these recesses be formed in protective cover 12b sleeve 38b on latch elements 18b distolateral.
The excircle of the cylindric protuberance of transmission device flange 36b is provided with a groove 46b; under the installment state of protective cover 12b; protuberance 48b on the inner periphery radially inwardly that point to, that be formed in sleeve 38b leads in described groove, is supported among the groove 46b by the axial force that is produced by kayser unit 16b between transmission device flange 36b and protective cover 12b.In order to make the protuberance 48b can insertion groove among the 46b, the groove 50b of an axial orientation be set on the excircle of the cylindric protuberance of transmission device flange 36b.
Embodiment shown in Figure 4 has the latch elements 18c that substitutes the latch elements 18b that is formed by spring leaf, and this latch elements 18c comprises the lock device 34c that is formed by ball.Lock device 34c is bearing among the groove 52c of transmission device flange 36c movingly and stretches out the face of the points in axial direction of transmission device flange 36c with the subregion along the helical compression spring 54c that axially overcomes latch elements 18c of output shaft 40c.
Figure 5 illustrates the angle grinding machine protective cover device that has signal element 14d, this signal element 14d comprises kayser unit 16d.This kayser unit 16d has the latch elements 18d that is formed by ring-type element, and this latch elements is anti-to be fixed on the cylindric protuberance of transmission device flange 36d with reversing, more precisely by means of the lock device that is not shown specifically.Latch elements 18d has the function different with the protective cover function with the kayser function, and this latch elements 18d is made by elastomeric material or rather, and is formed for the bearing-surface of the radial outward sensing of protective cover 12d, therefore has vibration-damping function.Can consider also that in principle those skilled in the art think other significant, different with the protective cover function with kayser function function, as sealing function etc. preferably.
On the outer circumference surface of latch elements 18d, be formed with radially outward the lock device 34d that points to, form by projection; this lock device and the latch elements 20d acting in conjunction under installment state that is formed on the protective cover 12d, described latch elements 20d constructs corresponding to the latch elements 20a among first embodiment.Lock device 34d is set to radially overcome contained spring power and flexibly is offset in the kayser process.For the spring force realizing wishing and the spring deflection of expectation, latch elements 18a has groove 56d in the inner radial zone of lock device 34d.
Figure 6 illustrates the angle grinding machine protective cover device that has signal element 14e, this signal element 14e comprises kayser unit 16e.This kayser unit 16e has the latch elements 18e that is formed by ring-type element, and this latch elements is rotatably supported on the cylindric protuberance of transmission device flange 36e.Latch elements 18e have be formed on its excircle, by the synchronous element 24e that groove forms, described synchronous element 24e is used for and synchronous element 58e coupling protective cover 12e, that formed by protuberance.Synchronous element 58e stretch out protective cover 12e sleeve 38e inner peripheral surface and form by pressing part.In addition, latch elements 18e comprises the lock device 26e that is formed by the kayser projection that radially inwardly points within it on the circumference, and this lock device is provided for and is formed in latch elements 20e on the excircle of cylindric protuberance of transmission device flange 36e, that formed by groove and is coupled.Lock device 26e is set to radially outwards overcome inner spring force and flexibly is offset in the kayser process.
Figure 7 illustrates the angle grinding machine protective cover device that has signal element 14f, this signal element 14f comprises kayser unit 16f.This kayser unit 16f has the latch elements 18f that is formed by ring-type element; this latch elements 18f can not be fixed on the sleeve 38f of protective cover 12f with reversing; see under the installment state of protective cover 12f that or rather this latch elements 18f is fixed on the fringe region that deviates from transmission device flange 36f of sleeve 38f.Latch elements 18f is bonded on the protective cover 12f; yet also can think that significant detachable or non-removable other fixed form is fixed on the protective cover 12f by those skilled in the art, for example latch elements 18f can be threaded, clamp and otherwise be fixed on the protective cover 12f.Bonding connection constitutes the synchronous element between latch elements 18f and the protective cover 12f.Under the installment state of protective cover 12f, latch elements 18f is rotatably supported on the cylindric protuberance of transmission device flange 36f with protective cover 12f.In addition, latch elements 18f comprises the lock device 26f that is formed by projection, radially inwardly point within it on the periphery, and this lock device is provided for and is formed in latch elements 20f on the excircle of cylindric protuberance of transmission device flange 36f, that is formed by groove and is coupled.Lock device 26f is set to radially outwards overcome inner spring force and flexibly is offset in the kayser process.
Figure 8 illustrates the angle grinding machine protective cover device that has signal element 14g, this signal element 14g comprises kayser unit 16g.This kayser unit 16g has the latch elements 18g that the ring-type element by opening forms; this latch elements 18g can not reverse ground, removably be fixed on the sleeve 38g of protective cover 12g; see under the installment state of protective cover 12g that or rather this latch elements 18g is fixed on sleeve 38g to be deviated from the fringe region of transmission device flange 36g.Under the installment state of protective cover 12g, latch elements 18g is rotatably supported on the cylindric protuberance of transmission device flange 36g with protective cover 12g.The ring-type element of opening is formed for latch elements 18g is fixed on lock device 22g on the sleeve 38g.At latch elements 18g fixedly the time, the ring-type element of opening flexibly expand and in the top edge zone of sleeve 38g kayser in the groove 60g that is shaped.Under the abrasion condition of latch elements 18g, can change this latch elements easily.Latch elements 18g also has the lock device 26g that radially inwardly points to, formed by projection within it on the circumference; described lock device 26g is provided for and is formed in latch elements 20g coupling on the excircle of cylindric protuberance of transmission device flange 36g, that formed by groove; and described lock device 26g be formed for week upwards with the synchronous element of protective cover 12g coupling; wherein, these synchronous elements pass the inner peripheral surface that the groove that is arranged among the sleeve 38g radially inwardly stretches out sleeve 38g.Described lock device 26g is set to radially outwards overcome contained spring power and flexibly is offset in the kayser process.
Fig. 9,9a and 10 and 10a in embodiment have kayser unit 16h, 16i, these kayser unit have respectively by circle wire the latch elements 18h, the 18i that form.Latch elements 18h is arranged among the groove 42h on the circumference of cylindric protuberance of transmission device flange 36h.Latch elements 18h has two spiral helicine ends and extend, the lock device 34h that be shaped, the projection shape of outer circumference surface that radially radially outward exceeds cylindric protuberance.The spiral helicine end of latch elements 18h is pushed against on the pin that does not illustrate of transmission device flange 36h.Lock device 34h is set to radially inwardly overcome inner spring force and flexibly is offset in the kayser process.
Figure 11 illustrates the angle grinding machine protective cover device that has signal element 14j, this signal element 14j comprises kayser unit 16j.This kayser unit 16j has latch elements 18j, this latch elements 18j comprises the lock device 34j that is formed by hood-like latch piece (Raste), and the spring element that is not shown specifically that this lock device overcomes latch elements 18j can be bearing among the groove 42j on the circumference of cylindric protuberance of transmission device flange 36j with radially moving.As an alternative, a U-shaped latch elements 18j ' who is formed by spring leaf also can be set.Lock device 34j is set to radially overcome the spring force of the spring element that is not shown specifically radially to bias internal in the kayser process.
Figure 12 illustrates the angle grinding machine protective device that has signal element 14k, this signal element 14k comprises kayser unit 16k.This kayser unit 16k has latch elements 18k, and this latch elements has a lock device 34k who is formed by the elastic cylindrical body, and this lock device 34k is arranged among the groove 42k on the circumference of cylindric protuberance of transmission device flange 36k.Lock device 34k is formed by elastomer, yet also can think significant by those skilled in the art, other material of being configured to strain forms.In addition, also can consider other shape.Lock device 34k extends radially the periphery of the cylindric protuberance of transmission device flange 36k, and is set to radially overcome inner spring force flexibly radially to bias internal in the kayser process.
Figure 13 illustrates the angle grinding machine protective device of a kind of signal element 14I, this signal element 14I comprises kayser unit 16I.This kayser unit 16I has latch elements 18I, and this latch elements is arranged among the groove 42I on the circumference of cylindric protuberance of transmission device flange 36I.Latch elements 18I comprises that an elastomer element 62I and imbeds lock device 34I among the elastomer element 62I, that formed by projection, this lock device extends radially the periphery of the cylindric protuberance of transmission device flange 36I, radially supports and be set to radially inwardly overcome in the kayser process spring force skew of elastomer element 62I movingly by elastomer element 62I.As the replacement scheme that supports movingly by elastomer element 62I, lock device 34I also can overcome the element that another spring element supported and/or itself be configured to be provided for resilient bias movingly.
Figure 14 illustrates the angle grinding machine protective cover device of signal element 14m, this signal element 14m comprises kayser unit 16m.This kayser unit 16m has latch elements 18m, and this latch elements has lock device 34m radially outer, that be provided for being offset, that support movingly of the protective cover receiving area 28m of the protective cover 12m that is arranged on angle grinding machine protective cover device in the kayser process.Protective cover receiving area 28m is used to receive the sleeve 38m of protective cover 12m.The lock device 34m that forms by the element of rigidity own overcome the spring device that is not shown specifically, be arranged on lock device 34m inside radially translation support movably, and be set in the kayser process, overcome the radially skew outwardly of spring force of spring device.At this, lock device 34m be formed in latch elements 20m acting in conjunction on the excircle of sleeve 38m, that form by groove.Substitute the lock device 34m that forms by stiffener one lock device that is provided for strain, for example lock device of being made by elastomeric material also can be set.
The angle grinding machine protective cover device of signal element 14n has been shown in Figure 15,15a, and this signal element 14n comprises kayser unit 16n.Kayser unit 16n has latch elements 18n, this latch elements comprise a protective cover 12n who is arranged on angle grinding machine protective cover device protective cover receiving area 28n radially outer, be used for the lock device 34n that is offset in the kayser process.Lock device 34n is integrated among the housing 30n that is formed by gear mechanism housing or partly is arranged among this housing 30n and stretches out the wall towards protective cover receiving area 28n that passes housing 30n.Lock device 34n overcomes the mechanical type spring element that is not shown specifically, be arranged among the housing 30n and radially supports movingly towards output shaft 40n, and the spring force that is set to radially to overcome spring element in the kayser process radially outward is offset.At this, latch elements 20n acting in conjunction on lock device 34n and the excircle of sleeve 38n that is formed in protective cover 12n, that form by groove.Substitute the mechanical spring element be arranged among the housing 30n, can consider that also those skilled in the art think significant other modification, as especially pneumatic flexible member etc.
Figure 16 illustrates the angle grinding machine protective cover device that has signal element 14o, this signal element 14o comprises kayser unit 16o.Kayser unit 16o has the latch elements 18o that is formed by ring-type element, this latch elements is arranged among the groove 42o on that side of pointing to output shaft 40o vertically of transmission device flange 36o, and has the lock device 34o of the projection shape described side, that be shaped that stretches out transmission device flange 36o vertically.Latch elements 18o is formed by spring leaf, and lock device 34o is set to flexibly overcome vertically inner spring force skew in the kayser process.Alternative spring leaf also can be considered wire spring or plastic components.
The angle grinding machine protective cover device that has the signal element 14p-14r that comprises kayser unit 16p-16r has been shown in Figure 17 to 19.That kayser unit 16p-16r has respectively is one that formed by latch arm, be formed in the latch elements 18p-18r on the protective cover 12p-12r integratedly.Latch elements 18p is formed by the subregion that cut out and that then be bent upwards of protective cover 12p, and is provided for flexibly skew during the kayser process.As an alternative, also can on protective cover, fix a latch arm that forms by additional member.Latch elements 18p under installment state with latch elements 20p acting in conjunction, described latch elements 20p is formed on sensing output shaft 40p axial distolateral of cylindric protuberance of transmission device flange 36p.
Latch elements 18q is formed by the subregion that cut out and that then be bent upwards of protective cover 12q equally.Yet, 18p is opposite with latch elements, latch elements 18q does not abut on the latch elements 20p of shaping, but under installment state, be arranged on below the latch elements 20q that forms by ring washer or be arranged on the top cover of transmission device flange 36q and the latch elements 20q that forms by ring washer between, this latch elements is along on this axial top cover of the sensing output shaft 40q that axially is bearing in transmission device flange 36q movingly of output shaft 40q.Latch elements 20q has the lock device 64q that is formed on its side of pointing to transmission device flange 36q under installment state, this lock device 64q in the kayser process be formed on the lock device 18q, under confined state, see and point to lock device 34q acting in conjunction direction, the projection shape that deviates from transmission device flange 36q.At this, latch elements 20q overcomes the spring force skew of helical compression spring in the axial direction along the direction that deviates from transmission device flange 36q.Latch elements 20q constructs integratedly as the pairing keeper or with the pairing keeper, and this pairing keeper is set to, and is deviating from transmission device flange 36q axial fixedly protective cover 12q.
In order advantageously to realize step-lengths different between each latched position or spacing and/or different kayser power, can be advantageously provided various latch elements 20q with different step-lengths and/or geometrical property.
Figure 20 illustrates the angle grinding machine protective cover device that has signal element 14s, this signal element 14s comprises kayser unit 16s.This kayser unit 16s has latch elements 18s, and this latch elements 18s overcomes the spring element that is not shown specifically and winds in the groove of circumference of cylindric protuberance that axis of oscillation 68s perpendicular to the rotation 70s orientation of output shaft 40s is bearing in transmission device flange 36s swingably.Latch elements 18s has the lock device 34s of wedge shape, and this lock device is set to radially overcome the spring force skew of the spring element that is not shown specifically in the kayser process.At this, lock device 34s be formed in latch elements 20s acting in conjunction on the sleeve 38s inner periphery of protective cover 12s, that form by groove.The lock device 34s of instead of wedges can consider that also those skilled in the art think significant other shape, especially the shape that has the inclined-plane, its be configured to targetedly when relative motion to produce along desired orientation, especially along the force component of offset direction.Protective cover 12s has forming section 72s in a side that deviates from latch elements 20s; this forming section 72s creates the free space of inner radial; latch elements 18s can pass this free space in the assembling of protective cover 12s; be arranged in the protective cover position in addition, the protective cover band of position that is provided for moving or rather; therefore after protective cover 12s installs; protective cover 12s must be moved in this protective cover band of position by reversing targetedly by the operator, and is fixed on the position of rotation by means of kayser unit 16s in this protective cover band of position.
Figure 21 illustrates the angle grinding machine protective cover device that has signal element 14t, this signal element 14t comprises kayser unit 16t.This kayser unit 16t has the latch elements 18t that is integrated among the housing 32t that is formed by motor shell, and latch elements 18t and housing 32t design integratedly or rather.Latch elements 18t by be formed on the housing 32t bottom side groove and by be arranged on usually bottom land, form by the lock device 34t that convexes to form.Also can consider the projection at the bottom of the instead of grooves in principle, projection is set at the sidewall of groove.Lock device 34t be formed on the protective cover 12t, under installment state, point to housing 32t latch elements 20t acting in conjunction direction, the projection shape.During the kayser process, latch elements 20t is along the axial dipole field of output shaft 40t, and protective cover 12t flexibly is out of shape at this.As an alternative, also can fix that be provided for resilient bias and/or the lock device of supporting, for example a leaf spring etc. movingly at protective cover 12t and/or on housing 32t.For avoiding damaging housing 32t, housing 32t also can construct in the zone of groove intentinonally, for example by means of metal insert.Also be contemplated that in principle, the lock device of a projection shape is set on housing 32t, this lock device interlocking is in a groove that is arranged on the protective cover 12t.
Claims (14)
1. protective cover device; especially angle grinding machine protective cover device; have fixed cell (10a-10t); described fixed cell (10a-10t) is provided for protective cover (12a-12t) is fixed in each different position of rotation; it is characterized in that; described fixed cell (10a-10t) has signal element (14a-14t), and described signal element (14a-14t) is provided for sending at least one signal when arriving the position of rotation of at least one definition.
2. protective cover device as claimed in claim 1 is characterized in that, described signal element (14a-14t) is provided for sending acoustic signal and/or haptic signal.
3. protective cover device as claimed in claim 2 is characterized in that, described signal element (14a-14t) has at least one in rotational direction depressible, as to be used to produce and send signal acoustics and/or sense of touch kayser unit (16a-16t).
4. protective cover device as claimed in claim 3 is characterized in that, described kayser unit (16a; 16d-16n; 16s) has at least one latch elements (18a; 18d-18n; 18s), described latch elements (18a; 18d-18n; 18s) comprise at least one lock device (34a; 34d-34n; 34s), described lock device is set to radially overcome the spring force skew in the kayser process.
5. protective cover device as claimed in claim 3 at least is characterized in that described kayser unit (16d) has at least one latch elements (18d), and described latch elements (18d) has at least one different with the protective cover function with the kayser function at least function.
6. protective cover device as claimed in claim 3 at least is characterized in that, described kayser unit (16d-16g; 16o; 16q; 16r) has the latch elements (18d-18g that at least one is formed by ring-type element; 18o; 20q; 20r), described latch elements (18d-18g; 18o; 20q; 20r) be provided for being fixed on described protective cover (12d-12g; 12o; 12q; 12r) go up and/or be fixed on one and described protective cover (12d-12g; 12o; 12q; 12r) on the different member.
7. protective cover device as claimed in claim 3 at least is characterized in that, described kayser unit (16p; 16q; 16r) have that at least one is formed by latch arm, integrally formed at described protective cover (12p at least in part; 12q; Latch elements (18p 12r); 18q; 18r).
8. protective cover device as claimed in claim 3 at least; it is characterized in that; described kayser unit (16g) has at least one latch elements (18g), and described latch elements (18g) has at least one lock device that is used for fixing described latch elements (18g) (22g).
9. protective cover device as claimed in claim 3 at least is characterized in that, described kayser unit (16e; 16f; 16g) has at least one latch elements (18e; 18f; 18g), described latch elements has and is used for and described protective cover (12e; 12f; 12g) Ou He synchronous element (24e; 24f) and be used for and be different from described protective cover (12e; 12f; Lock device (the 26e of member coupling 12g); 26f; 26g).
10. protective cover device as claimed in claim 3 at least is characterized in that, described kayser unit (16d; 16h; 16i) has the latch elements (18d that at least one is formed by metal wire and/or elastomer at least in part; 18h; 18i).
11. protective cover device as claimed in claim 3 at least is characterized in that a protective cover receiving area (28m; 28n) with described kayser unit (16m; At least one latch elements (18m 16n); 18n), described latch elements (18m; 18n) comprise that at least one is at least partially disposed on described protective cover supporting zone (28m; Radially outer 28n), be used for the lock device (34m that is offset in the kayser process; 34n).
12. protective cover device as claimed in claim 3 at least is characterized in that, described kayser unit (16c; 16e; 16f; 16g; 16j; 16l; 16m; 16n; 16q; 16s) have at least one and described protective cover (12c; 12e; 12f; 12g; 12j; 12l; 12m; 12n; 12q; 12s) latch elements (the 18c that constructs dividually; 18e; 18f; 18g; 18j; 18l; 18m; 18n; 20q; 18s), described latch elements comprises the lock device (34c that at least one supports movingly; 34e; 34f; 34g; 34j; 34l; 34m; 34n; 20q; 34s).
13. a hand held power machine, especially angle grinding machine have housing (30a, 32a; 30n, 32n; 30t is 32t) with by the described protective cover device of one of prostatitis claim.
14. hand held power machine as claimed in claim 13 is characterized in that, described signal element (14n; At least one signal device 14t) is integrated in described housing (30n at least in part; 32t).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE200810044403 DE102008044403A1 (en) | 2008-12-05 | 2008-12-05 | Protection hood device, particular angular grinder protection hood device for hand tool machine, has fixing unit which is provided for fixing protection hood in different turning positions |
| DE102008044403.0 | 2008-12-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101745840A true CN101745840A (en) | 2010-06-23 |
Family
ID=42145253
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910253610A Pending CN101745840A (en) | 2008-12-05 | 2009-12-03 | Protective hood device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101745840A (en) |
| DE (1) | DE102008044403A1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102699798A (en) * | 2012-06-14 | 2012-10-03 | 宁波国图电机有限公司 | Hand-held electric belt sander |
| CN102765032A (en) * | 2012-06-29 | 2012-11-07 | 上海锐奇工具股份有限公司 | Electric angle grinder with function of starting locked state |
| CN102773558A (en) * | 2011-05-12 | 2012-11-14 | 力山工业股份有限公司 | Saw blade protective cover device of table saw |
| CN106029306A (en) * | 2014-02-28 | 2016-10-12 | 日立工机株式会社 | Electric tool |
| CN108296948A (en) * | 2017-01-13 | 2018-07-20 | 苏州宝时得电动工具有限公司 | Sander |
| CN112757234A (en) * | 2019-10-21 | 2021-05-07 | C.&E.泛音有限公司 | Electric hand-held power tool |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102013200971A1 (en) | 2013-01-22 | 2014-07-24 | Robert Bosch Gmbh | Method for electrically connecting a coaxial conductor to a circuit carrier |
| DE102017213743A1 (en) * | 2017-08-08 | 2019-02-14 | Robert Bosch Gmbh | Protective device for a hand tool machine |
| EP3546124A1 (en) * | 2018-03-29 | 2019-10-02 | HILTI Aktiengesellschaft | Angle grinder |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102773558A (en) * | 2011-05-12 | 2012-11-14 | 力山工业股份有限公司 | Saw blade protective cover device of table saw |
| CN102773558B (en) * | 2011-05-12 | 2016-09-07 | 力山工业股份有限公司 | The saw device of table saw machine |
| CN102699798A (en) * | 2012-06-14 | 2012-10-03 | 宁波国图电机有限公司 | Hand-held electric belt sander |
| CN102699798B (en) * | 2012-06-14 | 2015-01-07 | 宁波国图电机有限公司 | Hand-held electric belt sander |
| CN102765032A (en) * | 2012-06-29 | 2012-11-07 | 上海锐奇工具股份有限公司 | Electric angle grinder with function of starting locked state |
| CN106029306A (en) * | 2014-02-28 | 2016-10-12 | 日立工机株式会社 | Electric tool |
| CN108296948A (en) * | 2017-01-13 | 2018-07-20 | 苏州宝时得电动工具有限公司 | Sander |
| CN112757234A (en) * | 2019-10-21 | 2021-05-07 | C.&E.泛音有限公司 | Electric hand-held power tool |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102008044403A1 (en) | 2010-06-10 |
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Application publication date: 20100623 |