阅读说明：本技术 用于切割式打磨机的防尘罩 (Dust cover for cutting type sander ) 是由 K·库尔曼 于 2018-04-16 设计创作，主要内容包括：本发明涉及一种防尘罩(100),所述防尘罩具有用于将该防尘罩(100)固定在切割式打磨机(200)的传动装置延伸壳体(210)上的凸缘(90)、并且具有用于至少局部地在两侧覆盖圆形的切割轮(220)的罩体(10)、并且具有用于连接抽吸软管(400)的抽吸管接头(40),经由所述抽吸软管能从所述罩体(10)吸走基底剥离物(UG),其中,所述防尘罩(100)具有传感单元(20),借助于所述传感单元可以探测：所述抽吸软管(400)是否连接在所述抽吸管接头(40)上和/或所述抽吸管接头(40)的活门(45)是否打开。(The present invention relates to a kind of dust cover (100), the dust cover has the flange (90) for being fixed on the dust cover (100) on the transmission device extensional shell (210) of cutting type sander (200), and there is the cover (10) at least partially covering circular cutting wheel (220) in two sides, and there is the suction pipe fitting (40) for connecting suction hose (400), substrate overburden (UG) can be siphoned away from the cover (10) via the suction hose, wherein, the dust cover (100) has sensing unit (20), can be detected by means of the sensing unit: whether the suction hose (400) is connected on suction pipe fitting (40) and/or whether the valve (45) of suction pipe fitting (40) is opened.)

1. dust cover (100), the dust cover has for the dust cover (100) to be fixed on cutting type sander (200) Flange (90) on transmission device extensional shell (210) and have at least partially covering circular cutting in two sides It takes turns the cover (10) of (220) and there is the suction pipe fitting (40) for connecting suction hose (400), via the suction Hose can siphon away substrate overburden (UG) from the cover (10), which is characterized in that the dust cover (100) has sensing single First (20), can be detected by means of the sensing unit: whether the suction hose (400) is connected to the suction pipe fitting (40) on and/or whether the valve (45) of suction pipe fitting (40) is opened.

2. dust cover (100) described in accordance with the claim 1, which is characterized in that the dust cover (100) has signal wire (80), the transducing signal (SL) from the sensing unit (20) can be obtained via the signal wire, preferred to described The cutting wheel (220) of cutting type sander (200) presets rotation direction.

3. dust cover (100) according to claim 1 or 2, which is characterized in that the signal wire (80) passes through described dust-proof Cover flange (90) guidance of (100).

4. dust cover (100) according to any one of the preceding claims, which is characterized in that sensing unit (20) tool Have valve contact (21), can be detected by means of the valve contact: the valve (45) of suction pipe fitting (11) is to close Or it opens.

5. dust cover (100) according to any one of the preceding claims, which is characterized in that sensing unit (20) tool Have pipe fitting contact (23), can be detected by means of the pipe fitting contact: whether the suction hose (20) is connected to suction On pipe fitting (40).

6. dust cover (100) according to any one of the preceding claims, which is characterized in that sensing unit (20) tool Have cover contact (25), can be detected by means of the cover contact: whether the dust cover (100) is connected to the cutting type polishing On machine (200).

7. according to dust cover described in any one of claim 4 to 6 (100), which is characterized in that the valve contact (21), The pipe fitting contact (23) and/or the cover contact (25) are provided in the form of switch, key, magnetic contact or grating.

8. cutting type sander (200), the cutting type sander has for connecting according to any one of the claims The transmission device extensional shell (210) of the dust cover (100), which is characterized in that the cutting type sander (200) has Rotation direction controls electronic system (230), and the rotation direction control electronic system is in the case where being connected with dust cover (100) It is connect via interface (240) with the sensing unit (20) signal, so that being believed according to the sensing from the sensing unit (20) Number (SL) can preset the rotation direction (GGD, GLD) of the cutting wheel (220) of the cutting type sander (200).

9. cutting type sander (200) according to claim 9, which is characterized in that the rotation direction controls Department of Electronics System (230) is configured to forbid the cutting wheel when no dust cover (100) is connected on the cutting type sander (100) (220) rotation.

10. the method for running cutting type sander, wherein the cutting type sander has equipped with suction pipe fitting Dust cover, the method have follow steps:

Whether (S1) is detected by means of the sensing unit surrounded by the dust cover: having suction hose to be connected to the pumping In suction attachment and/or whether the valve of the suction pipe fitting is opened,

(S2) controls the rotation direction of the cutting wheel of the cutting type sander according to the state detected by sensing unit.

Technical field

The present invention relates to a kind of dust cover, the dust cover has for the dust cover to be fixed on cutting type sander On transmission device extensional shell (Getriebehals).The dust cover is round equipped with covering at least partially in two sides Cutting wheel cover and equipped with the suction pipe fitting for connecting suction hose.It can be from institute via the suction hose It states cover and siphons away substrate overburden.

Background technique

The dust cover that literary head addresses type is known from the state of the art in principle.The dust cover is for avoiding in cutting operation In dust diffusion, so as to protect cutting type sander user health.

Summary of the invention

The object of the present invention is to provide a kind of dust cover, the dust cover provides basis for safer cutting operation.

The purpose is achieved in the following manner, that is, the dust cover has sensing unit, by means of the sensing Unit can detect: whether the suction hose is connected on the suction pipe fitting and/or the valve of the suction pipe fitting Whether open.

The present invention includes following knowledge: cutting type sander in practical applications, i.e. for example not only has in dry type cutting Dust siphons away ground and free from dust uses with siphoning away.In the dry type cutting that free from dust siphons away, typically along rotation side in the same direction To the circular cutting wheel of rotation cutting type sander, so that user of the substrate overburden far from cutting type sander.In nothing In the dry type cutting that dust siphons away, cutting wheel typically is driven along opposite rotation direction, this is able to achieve to notch (Schnittfuhr) preferable control.Recognize: a possibility that running cutting type sander along different rotation directions can It can lead to operating mistake, these operating mistakes further mean that the undesirable dust load for user.This for example works as suction The valve of pipe fitting is the situation when opening and being connected on suction pipe fitting without suction hose.

Dust cover according to the present invention provides the basis for avoiding such operating mistake.Biography arranged according to the present invention Sense unit for example can be supplied to cutting type sander to preset rotation direction to the cutting wheel of cutting type sander.If Such as the valve of suction pipe fitting is opened and is inserted into suction pipe fitting without suction hose, then it is likely that automatically The rotation direction in the same direction of default cutting wheel, it is usually selected when without dust is siphoned away.If otherwise the work of suction pipe fitting Door is opened and suction hose is inserted into the suction pipe fitting or is connected on the suction pipe fitting, then preferably default opposite direction Rotation direction because may insure to siphon away according to the dust of regulation.

In a kind of particularly preferred design scheme, the dust cover has signal wire, can obtain via the signal wire The transducing signal from the sensing unit is fetched, presets rotation direction preferred to the cutting wheel of the cutting type sander.

It is verified that be it is beneficial that: the signal wire is guided by the flange of the dust cover.On flange, for example One or more interfaces, the transmission device extension of the interface and cutting type sander can be set on the inner surface of flange One or more interfaces on shell are corresponding.In the simplest case, interface can have the contact of one or more electricity Region.

It is verified that be it is beneficial that: the sensing unit has valve contact, can be with by means of the valve contact Detection: the valve of the suction pipe fitting is to open or close.Alternatively or additionally, the sensing unit has pipe fitting Contact can be detected by means of the pipe fitting contact: whether the suction hose is connected on the suction pipe fitting.

In a kind of particularly preferred design scheme of dust cover, the sensing unit has cover contact, by means of described Cover contact can detect: whether the dust cover is connected on the cutting type sander.The transducing signal of cover contact can lead to Crossing cutting type sander, for example analysis is handled in this way, so that forbidding cutting when no dust cover is connected on cutting type sander The rotation of wheel.

The different designs scheme of valve contact, pipe fitting contact and cover contact is conceivable.Therefore, the valve touching Point, the pipe fitting contact and/or the cover contact can be provided in the form of switch, key, magnetic contact or grating.Similarly, Sensing unit can have the combination of switch, key or the like.

In the first preferred design, valve contact is provided in the form of ON/OFF-slide switch.Preferably, it slides Switch is manipulated by aspirating the valve of pipe fitting.Preferably, the valve for aspirating pipe fitting is shaped so as to, so that opening valve When manipulate slide switch.By manipulating slide switch, form is that the signal wire of electrical circuit can be disconnected or be closed and preferably The rotation direction control electronic system of cutting type sander can be manipulated based on the signal of this pure electricity.

Valve contact and cover contact are also possible to what function integrated, such as form is that ON/OFF/opening-overturns switch, preferably It is manipulated by aspirating the valve of pipe fitting.Therefore for example it may be stipulated that: overturning switch is pressed onto the first open position by the valve closed In setting, overturning switch is pressed onto the second open position by the valve of opening, and/or is beaten when dust cover is not located at cutting type When on grinding machine, overturning switch occupies off position (such as middle position).It can be set between valve and flange inside dust cover Be equipped with pass segment, for example form be mechanical push rods, thus overturn switch can be set in the region of valve on pipe fitting simultaneously And can detect in the meaning of cover contact simultaneously: whether dust cover is connected on cutting type sander.

In another preferred design, valve contact and pipe fitting contact are provided in the form of two keys.It is preferred that advising Fixed: the valve of closing manipulates the first key, and manipulates the second key when suction hose is inserted into suction pipe fitting.The key can With in this way, make when valve open and suction hose be not attached to suction pipe fitting on when two keys all do not pressed Pressure, this preferably promotes: rotation control electronic system forbids the rotation of the cutting wheel of cutting type sander.In another preferred design In scheme, it is key that sensing unit, which only has valve contact, preferred form,.

As has been indicated like that, valve contact, pipe fitting contact and/or cover contact can be mentioned in the form of diversified For.Therefore, valve contact and pipe fitting contact can for example be provided in the form of two gratings, wherein the valve of closing interrupts The suction hose of first grating, the valve of opening and/or grafting preferably interrupts the second grating.In this case it may be stipulated that: When the first grating and the second grating are not all interrupted, the rotation that electronic system forbids cutting wheel is controlled by rotation direction.

In another design, preferably only valve contact is provided in the form of grating.This grating can be set in this way It sets, so that the valve of the opening of suction pipe fitting interrupts the grating and the valve closed does not interrupt the grating.

In another design, valve contact and pipe fitting contact can be with magnetic contacts, the shape of such as reed switch Formula provides.Here, the valve closed preferably is closed the first magnetic switch.The suction hose of grafting can be closed the second magnetism and open It closes.It is preferred that regulation: when valve is opened and suction hose does not have grafting, no magnetic switch is manipulated and about cutting type Sander forbids the rotation of cutting wheel in this case.

The above-mentioned function of valve contact, pipe fitting contact and/or cover contact can certainly be converted logically.

The purpose equally passes through a kind of cutting type sander and is achieved, and the cutting type sander has for connecting The transmission device extensional shell of the dust cover of the above-mentioned type, wherein there is the cutting type sander rotation direction to control electronics System, the rotation direction control electronic system is in the case where being connected with dust cover via interface and the sensing unit signal Connection, to be preset according to the transducing signal from the sensing unit and presets cutting for the cutting type sander in other words Cut the rotation direction of wheel.

It is verified that be it is beneficial that: rotation direction control electronic system is configured to be connected to when no dust cover Forbid the rotation of the cutting wheel when on the cutting type sander.

Preferably, the cutting type sander is hand held power machine.It is particularly preferred that the cutting type sander is electricity Pond driving that is, especially no power supply line.

The purpose is equally achieved by a kind of method for running cutting type sander, wherein the cutting Formula sander has the dust cover equipped with suction pipe fitting, and the method has follow steps:

By means of the sensing unit detection surrounded by the dust cover: whether the suction hose is connected to the suction In pipe fitting and/or whether the valve of the suction pipe fitting is opened；

The rotation direction of the cutting wheel of the cutting type sander is controlled according to the state by sensing unit detection.

The method can be improved in a corresponding way by reference to equipment feature described above.

The purpose is achieved also by a kind of portable power tool system, and the portable power tool system has upper State the cutting type sander of type and the dust cover of the above-mentioned type.

Detailed description of the invention

Other advantages of the invention illustrate to obtain from the following drawings.Different embodiments of the invention are shown in the accompanying drawings.It is attached Figure, description and claims are combined comprising big measure feature.Those skilled in the art suitably also individually investigate the feature simultaneously And the feature is merged into other significant combinations.

In the accompanying drawings, identical and similar component is presented with like reference characters.

In attached drawing:

Fig. 1 shows a kind of preferred embodiment of dust cover according to the present invention, which is arranged according to the present invention On cutting type sander；

Fig. 2 shows another preferred embodiments of the cutting type sander according to the present invention with dust cover；

Fig. 3 shows another embodiment of the cutting type sander according to the present invention with dust cover, wherein described anti- Dust hood is not attached on cutting type sander；

Fig. 4 shows a kind of method according to the present invention for running cutting type sander.

Specific embodiment

Fig. 1 shows a kind of preferred embodiment of dust cover 100 according to the present invention, which is arranged according to the present invention Cutting type sander 200 on.Dust cover 100 has at least partially covering the cover of circular cutting wheel 220 in two sides Body 10.Dust cover 100 is also equipped with the suction pipe fitting 40 for connecting suction hose 400.Via suction pipe fitting 40 and take out The substrate overburden that form is dust can be siphoned away from unshowned notch herein, from cover 10 by inhaling hose 400 (Untergrundabtrag)UG。

Dust cover 100 has sensing unit 20, can be detected by means of the sensing unit: the valve 45 of suction pipe fitting 40 Whether open.

In present illustrated embodiment, sensing unit 20 has valve contact 21, can be visited by means of the valve contact Survey: the valve 45 of suction pipe fitting 11 is to open or close.Valve contact 21 is configured to be arranged on suction pipe fitting 40 ON/OFF-slide switch, so that manipulating slide switch into open position when valve 45 is opened.

Dust cover 100 has signal wire 80, via the available transducing signal SL from sensing unit 20 of the signal wire, More specifically in order to which the cutting wheel 220 to cutting type sander 200 presets rotation direction.

There is cutting type sander 200 itself rotation direction to control electronic system 230, which controls electronic system It is connect via interface (referring to Fig. 3: interface 240) with 20 signal of sensing unit in the case where being connected with dust cover 100.According to next The rotation direction of runner 220 can be preset from the transducing signal SL of sensing unit 20.

In the embodiment illustrated in fig. 1, the valve 45 for aspirating pipe fitting 40 is closed.The valve contact 21 of sensing unit 20 It is connect via signal wire 80 with rotation direction control electronic system 230.Illustratively provide: in the valve state of Fig. 1, form Valve contact 21 for slide switch is electrically opened and rotation direction control electronic system 230 is in this way, cutting It cuts and drives cutting wheel 220 along rotation direction GLD in the same direction when formula sander 200 puts into operation.This corresponds to what free from dust siphoned away Dry type cutting operation.

It (being not shown herein) when valve 45 is opened, form is that the valve contact 21 of slide switch is electrically closed, from And rotation direction control electronic system 230 manipulates cutting type sander 200 so now, so that being thrown in cutting type sander 200 Enter and drives cutting wheel 220 along opposite rotation direction GGD in the case where running.This corresponds to the dry type that progress dust siphons away and cuts It cuts.In this case it is to be noted that the dust cover 100 of Fig. 1 is arranged for detecting whether suction hose 400 connects really It connects on suction pipe fitting 40.

However, being such case in the embodiment of fig. 2.Sensing unit 20 has valve contact 21, by means of the valve Contact can detect: the valve 45 of suction pipe fitting 11 is to open or close.In addition, sensing unit 20 has pipe fitting contact 23, can be detected by means of the pipe fitting contact: whether suction hose 20 is connected on suction pipe fitting 40.Valve connector 21 with It to be provided by way of the key that open valve 45 manipulates.Pipe fitting contact 23 is to be arranged in the key inside suction pipe fitting 40 Form provide, it when suction hose 400 be inserted into suction pipe fitting 40 in when illustratively close herein.

When valve 45 is closed (shown here), form is that the valve contact 21 of key is manipulated, is electrically closed. The opposite rotation side that the preset content of rotation direction that electronic system 230 indicates is cutting wheel 220 is controlled by rotation direction To GLD.

If valve 45 is opened and form is not manipulated that is, is not opened electrically for the valve contact 21 of key, Rotation direction is default related with the switch state of pipe fitting contact 23.

If suction hose 400 is inserted into suction pipe fitting 40, form is the pipe fitting contact 23 in internal key It is manipulated, that is electrically closed.The switch state of valve contact 21 and pipe fitting contact 23 is with the biography of present pure electricity The form of sense signal SL sends rotation direction control electronic system 230 to, and rotation direction control electronic system is preset now cuts Cut the opposite rotation direction GGD of wheel 220.

If otherwise when valve 45 is opened, suction hose 400 is not inserted into suction pipe fitting 40, is arranged in correspondence with Rotation direction control electronic system 230 promote: although manipulation cutting type sander still forbids the rotation of cutting wheel 220.This must It must be set out with the following contents: the user of cutting type sander 200 can be injured across the dust of open valve 45.

Fig. 3 is essentially available for illustrating how preferably to couple sensing unit 20 with rotation direction control electronic system 230.

It in the fig. 3 embodiment, sensing unit 20 has valve contact 21, can be detected: be taken out by means of the valve contact The valve 45 of suction attachment 11 is to open or close.In addition, sensing unit has cover contact 25, it can be with by means of the cover contact Detection: whether dust cover 100 is connected on cutting type sander 200.Valve contact 21 and cover contact 25 for example can be with keys Form however can also be provided in the form of magnetic relay.

As can be learned well from Fig. 3, dust cover 100 has signal wire 80, can obtain via the signal wire Fetch the transducing signal SL from valve contact 21 and cover contact 25.In order to be able to achieve now to the dust-proof of cutting type sander 200 The signal transmitting of cover 100, more specifically rotation direction control electronic system 230, signal wire 80 pass through the flange 90 of dust cover Extend towards the interface 240 of the electricity on the flange.Transmission device extensional shell have corresponding interface 240, transducing signal SL from The rotation direction that the interface reaches cutting type sander controls electronic system 230.

Finally, Fig. 4 show it is a kind of for running the side of the cutting type sander of cutting type sander, such as Fig. 1 to Fig. 3 Method.The detection by means of the sensing unit surrounded by dust cover is carried out in first method and step S1: whether suction hose connects It connects on suction pipe fitting and/or whether the valve of suction pipe fitting is opened.In second method and step S2 carry out according to by Control of the state of sensing unit detection to the rotation direction of the cutting wheel of cutting type sander.

Reference signs list

10 covers

20 sensing units

21 cover contacts

23 pipe fitting contacts

25 cover contacts

40 suction pipe fittings

45 valve

80 signal wires

90 flanges

100 dust covers

200 cutting type sanders

210 transmission device extensional shells

220 cutting wheels

230 rotation directions control electronic system

240 interfaces

240 corresponding interfaces

400 suction hoses

The rotation direction of GGD opposite direction

Rotation direction GLD in the same direction

SL transducing signal

S1, S2 method and step

UG substrate overburden