CN102256756A - Protective device for a tool, in particular for a circular saw - Google Patents
Protective device for a tool, in particular for a circular saw Download PDFInfo
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- CN102256756A CN102256756A CN2009801509088A CN200980150908A CN102256756A CN 102256756 A CN102256756 A CN 102256756A CN 2009801509088 A CN2009801509088 A CN 2009801509088A CN 200980150908 A CN200980150908 A CN 200980150908A CN 102256756 A CN102256756 A CN 102256756A
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- protective device
- sensor element
- instrument
- processing unit
- toolroom machine
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- 230000001681 protective effect Effects 0.000 title claims abstract description 44
- 238000012545 processing Methods 0.000 claims description 50
- 239000000463 material Substances 0.000 claims description 37
- 239000000523 sample Substances 0.000 claims description 7
- 238000011156 evaluation Methods 0.000 abstract 2
- 238000013461 design Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 239000012212 insulator Substances 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 239000002916 wood waste Substances 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27G—ACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
- B27G19/00—Safety guards or devices specially adapted for wood saws; Auxiliary devices facilitating proper operation of wood saws
- B27G19/02—Safety guards or devices specially adapted for wood saws; Auxiliary devices facilitating proper operation of wood saws for circular saws
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16P—SAFETY DEVICES IN GENERAL; SAFETY DEVICES FOR PRESSES
- F16P3/00—Safety devices acting in conjunction with the control or operation of a machine; Control arrangements requiring the simultaneous use of two or more parts of the body
- F16P3/12—Safety devices acting in conjunction with the control or operation of a machine; Control arrangements requiring the simultaneous use of two or more parts of the body with means, e.g. feelers, which in case of the presence of a body part of a person in or near the danger zone influence the control or operation of the machine
- F16P3/14—Safety devices acting in conjunction with the control or operation of a machine; Control arrangements requiring the simultaneous use of two or more parts of the body with means, e.g. feelers, which in case of the presence of a body part of a person in or near the danger zone influence the control or operation of the machine the means being photocells or other devices sensitive without mechanical contact
- F16P3/141—Safety devices acting in conjunction with the control or operation of a machine; Control arrangements requiring the simultaneous use of two or more parts of the body with means, e.g. feelers, which in case of the presence of a body part of a person in or near the danger zone influence the control or operation of the machine the means being photocells or other devices sensitive without mechanical contact using sound propagation, e.g. sonar
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16P—SAFETY DEVICES IN GENERAL; SAFETY DEVICES FOR PRESSES
- F16P3/00—Safety devices acting in conjunction with the control or operation of a machine; Control arrangements requiring the simultaneous use of two or more parts of the body
- F16P3/12—Safety devices acting in conjunction with the control or operation of a machine; Control arrangements requiring the simultaneous use of two or more parts of the body with means, e.g. feelers, which in case of the presence of a body part of a person in or near the danger zone influence the control or operation of the machine
- F16P3/14—Safety devices acting in conjunction with the control or operation of a machine; Control arrangements requiring the simultaneous use of two or more parts of the body with means, e.g. feelers, which in case of the presence of a body part of a person in or near the danger zone influence the control or operation of the machine the means being photocells or other devices sensitive without mechanical contact
- F16P3/147—Safety devices acting in conjunction with the control or operation of a machine; Control arrangements requiring the simultaneous use of two or more parts of the body with means, e.g. feelers, which in case of the presence of a body part of a person in or near the danger zone influence the control or operation of the machine the means being photocells or other devices sensitive without mechanical contact using electro-magnetic technology, e.g. tags or radar
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Sawing (AREA)
Abstract
The invention relates to a protective device for a machine tool (12, 12a), in particular for a circular saw (14, 14a), comprising a sensor unit (16, 16a) that is provided for receiving a protection signal (18, 78; 18a, 78a), and an evaluation unit (20, 20a). According to the invention, the evaluation unit (20, 20a) is provided to detect a foreign object (24; 24a) located in a work piece (22; 22a) by means of the protection signal (18, 78; 18a, 78a) received.
Description
Technical field
The present invention relates to a kind of protective device as described in the preamble of claim 1.
Background technology
Known a kind of protective device that is used for toolroom machine, in particular for the protective device of annular saw, described protective device has sensor unit and processing unit, and described sensor unit is provided for receiving guard signal.
Summary of the invention
The present invention relates to a kind of protective device of the toolroom machine that is used for, especially annular saw, described protective device has sensor unit and processing unit, and wherein said sensor unit is provided for receiving guard signal.
The present invention proposes described processing unit and is provided for utilizing the described guard signal that receives to measure the exotic that is in the workpiece.In context, " setting " especially should be understood to special equipment and/or specialized designs and/or special planning.Further, " processing unit " especially should be understood to a kind of unit that can be made of computing unit and/or control module, wherein, described processing unit not only can be made of processor separately, but also can be made of the other electronic component of processor and for example memory device especially.Further, " mensuration " especially should be understood to the guard signal that is received from described sensor unit do about being in the processing of the exotic in the workpiece.By this design of the present invention, can protection tool, especially saw the incorrect use of instrument and possible damage.Particularly advantageous here be can avoid tools section unwelcome fracture and/or described toolroom machine in the running tools section outwards throw.To operating personnel, this more can be easily and uses the toolroom machine that has according to protective device of the present invention safely, and its mode is that exotic especially can be detected before exotic is sawed, and if desired, can import precautionary measures by processing unit.
Can be applied to those skilled in the art in principle according to protective device of the present invention thinks in significant all toolroom machines.Yet protective device according to the present invention is applied in the saw instrument, especially is particularly advantageous in annular saw, and this is because there is extra high danger in the saw instrument of rotation to operating personnel.
In addition, the present invention proposes sensor unit and has at least one sensor element that is provided for the detecting material parameter.In context, " material parameter " especially should be understood to comprise the parameter and/or the parameter of at least a certain material feature, as the insulator parameter, utilizes material parameter can measure the material of workpiece and/or exotic." sensor element " especially should be understood to be provided for receiving or sending and receive a kind of element of guard signal, and wherein, the guard signal that utilization is received can the detecting material parameter.Sensor element can think that significant all the sensors element constitutes by those skilled in the art here, wherein, described sensor element is particularly advantageously by the high frequency sensors element, for example radar sensor element and/or UWB sensor element and/or CW sensor element and/or optical sensor element, for example infrared ray sensor element and/or laser sensor element, and/or be used for the sensor element of acoustic sounding, for example formation such as ultrasonic sensor element.Can effectively and especially apace survey exotic according to the parameter that departs from the workpiece material parameter by design of the present invention.Alternatively or additionally, described sensor element also is made of temperature sensor, described temperature sensor obtains the current tool temperature, and the exotic in variation, the especially workpiece of the workpiece material of processing according to described temperature measuring.
And the present invention also proposes described processing unit and is provided for regulating at least one mode of operation according to described material parameter.In context, described mode of operation can be made of the pattern of introducing and/or start defencive function, for example stops described instrument and/or described tool retraction housing cover is medium.Here can realize adapting to toolroom machine on material fast and especially automatically, the especially running on the included exotic in the workpiece, described toolroom machine is annular saw especially.
In favourable improvement project of the present invention, propose described sensor unit and comprise at least one sensor element that is provided for the prospecting tools distinguishing mark.In context, " tool identification sign " especially should be understood to the distinguishing mark on the instrument of being arranged in, for example bar code, RFID label, the indenture of having encoded etc., wherein, described distinguishing mark advantageously comprises at least a information about at least one feature of instrument.Utilize this mode can realize automatically and the feature of prospecting tools apace.Especially can obtain about can to instrument do not damage by instrument, therefore when especially sawing the material of tool processes and being implemented in toolroom machine work to operating personnel's high security.
Described processing unit particularly advantageously is provided for regulating mode of operation according to tool identification sign and material parameter.The functioning example of toolroom machine can advantageously adapt to the feature and material workpiece and/or the exotic that workpiece is included of instrument as the speed of saw instrument.In addition; described mode of operation can be made of protected mode; described protected mode is provided for stopping described instrument and/or described operating personnel utilize optics output and/or the acoustics output and/or the possible and/or existing danger of vibration output sensing of guard signal, and requires described operating personnel to close described toolroom machine and/or stop described instrument etc.
And the present invention proposes described sensor unit and has at least one sensor element that is provided for the probe power parameter.In context, " power parameter " especially should be understood to the parameter and/or the parameter of the current power output of the especially work of instrument.Preferably, described power parameter is made of the rotating speed parameter.Described sensor element can be made of the sensor element of different designs, for example optical sensor element, especially infrared ray sensor element and/or laser sensor element etc.Described sensor element particularly advantageously is made of the high frequency sensors element of for example UWB sensor element, wherein, can utilize described high frequency sensors element to survey, the Doppler frequency that the circumferential speed that especially can be by instrument and/or the possible imbalance of instrument cause.In context, " UWB sensor element " especially should be understood to be provided for receiving and/or sending the uhf sensor element of ultra-high frequency signal.Can utilize the unexpected decline of in the running of toolroom machine instrument power to survey exotic in the workpiece.And can advantageously survey the possible overload of on-stream described toolroom machine.
Described processing unit particularly advantageously is provided for regulating mode of operation according to material parameter and/or tool identification sign and/or power parameter.Can protect described instrument in described toolroom machine running, not to be subjected to the damage of not expecting here.Described mode of operation can particularly advantageously be made of safe mode, described safe mode is by the output mode that is used for the output of optics and/or acoustics safety signal, the for example flicker of warning light and/or acoustics alarm signal, and/or by the generation vibration and/or by the safe mode that starts, for example formation that stops and/or descending of described instrument.
A kind of toolroom machine that is used for is proposed in improvement project of the present invention; protective device in particular for annular saw with sensor unit and processing unit; wherein; described sensor unit is provided for receiving guard signal, and described sensor unit has at least one sensor element that is provided for the probe power parameter.Described power parameter especially advantageously is made of the rotating speed parameter, thereby can realize surveying especially simply described power parameter.Can advantageously survey current load here, and therefore discern may transshipping of described toolroom machine, especially discern may transshipping of described toolroom machine automatically by described processing unit.In addition, the power parameter of utilize surveying can the exploration operation personnel to the possible operation mistake of described toolroom machine and/or be arranged in exotic in the workpiece.
Described processing unit particularly advantageously is provided for regulating mode of operation according to power parameter, therefore the possible overload of described toolroom machine can be avoided and therefore described toolroom machine can be advantageously improved, the life-span of the single parts of especially described toolroom machine (for example motor and/or instrument).In addition, can carry out the rotational speed regulation of instrument especially automatically by described processing unit, wherein, here, the rotating speed of described instrument or rotary speed can adapt to material to be processed and/or tool characteristics.Described mode of operation can particularly advantageously be made of safe mode, described safe mode is by the output mode that is used for the output of optics and/or acoustics safety signal, the for example flicker of warning light and/or acoustics alarm signal, and/or by the generation vibration and/or by the safe mode that starts, for example formation that stops and/or descending of described instrument.
The invention still further relates to a kind of toolroom machine with described protective device, especially annular saw.Particularly advantageously be, described toolroom machine has the cover sheet that is used for instrument, and wherein, the sensor unit of described protective device is arranged in described cover sheet inside at least in part.In context; " cover sheet " especially should be understood to center on along the circumferential direction of described instrument at least in part the cover plate of described instrument; and described cover plate is the working edge of shading tool especially advantageously, and especially Ju edge avoids it to contact with operating personnel.Preferably, described cover sheet is arranged to around the subregion of the instrument that towers from described toolroom machine.Described here sensor unit can advantageously be positioned to realize the detection of parameter, like this, moves the workpiece to be processed of the direct bottom of sensor unit on the instrument of being positioned at by operating personnel, thereby can advantageously survey parameter before workpiece processing.Can realize here and use safely to have the toolroom machine of protective device comfortable, and advantageously prevent the mistake use of described instrument.
In addition, the present invention proposes described toolroom machine and has working face, and the sensor unit of wherein said protective device is arranged on the side of working region dorsad of described working face at least in part.Here, " working face " especially should be understood to place the surface of instrument to be processed on it and/or utilize described surface, and described toolroom machine (for example toolroom machine that is made of hand-held annular saw) is placed workpiece to be processed thereon.Can realize especially safely and especially prevent the layout of the sensor unit of the damage that sensor unit is expected by present design of the present invention.
In addition, the present invention also proposes described toolroom machine and has the receiving area that is used for instrument, and wherein, the sensor unit of described protective device is arranged in front, described receiving area at least in part.In context, " front " especially should be understood to described sensor unit especially in static toolroom machine, for example in static miter saw, be arranged in the front, receiving area along operative orientation, and/or especially in the instrument that moves, for example in hand-held annular saw, be arranged in the front, receiving area along described workpiece with respect to the direction that instrument changes the position, wherein, the described direction preferably direction of motion with described hand-held annular saw is opposite, along the direction of motion of described hand-held annular saw, described hand-held annular saw is moved by operating personnel with respect to described workpiece.By design according to the present invention, can be implemented in before the saw work sensing advantageously and be arranged in possible exotic in the workpiece, thereby can advantageously avoid the tool damage do not expected, especially fractureing of sawtooth, and therefore can be implemented in the described toolroom machine running high security to operating personnel.
Description of drawings
From describing, following accompanying drawing will obtain more advantages of the present invention.Embodiments of the invention have been described in the accompanying drawings.Accompanying drawing, description and claims comprise a lot of feature combinations.Those skilled in the art can also consider described feature expediently alone, summarize to obtain reasonably more combinations.
In the accompanying drawings:
Fig. 1 is the schematic diagram that has according to the toolroom machine that is made of miter saw of protective device of the present invention;
Fig. 2 is the schematic diagram of protective device; And
Fig. 3 is the schematic diagram that has according to the toolroom machine that is made of hand-held annular saw of protective device of the present invention.
The specific embodiment
Fig. 1 has described the toolroom machine 12 that is made of annular saw 14.Annular saw 14 is made of fixing miter saw.Toolroom machine 12 comprises tool stand 56 and the receiving area 52 with housing 58, and receiving area 52 has the tool-acceptable portion 60 that is used to receive the instrument 62 that is made of the saw instrument, and wherein, tower on tool stand 56 in the subregion 64 of saw instrument.In addition, the tool stand 56 of toolroom machine 12 comprises the working face 46 of the breach 66 with receiving area 52, and instrument 62 is arranged in the breach 66 at least in part.Toolroom machine 12 also comprises motor unit 68, and motor unit 68 is provided for producing the driving moment of the instrument of working 62 that is used for toolroom machine 12.Driving moment is transported on the instrument 62 by the supply unit of not describing (for example, axle and/or gear unit) herein.In addition, toolroom machine 12 comprises protective device 10, protects operating personnel before the instrument 62 that protective device 10 is provided for rotating at work and/or before the industrial wood waste that winds high above at work.Protective device 10 has sensor unit 16 and processing unit 20; sensor unit 16 is provided for sending and receives guard signal 18; 78; processing unit 20 is provided for processes sensor unit 16 sensed data 72 and/or guard signal 18; 78; wherein, processing unit 20 is provided for utilizing the guard signal 18,78 that is received from sensor unit 16 to survey and/or measure the exotic 24 that is in the workpiece 22.Protective device 10 also comprises cover sheet 44, and cover sheet 44 is arranged to center on along the circumferencial direction 70 of saw instrument the subregion 64 of the saw instrument on tool stand 56 that towers.
Utilize processing unit 20 to handle the data 72 and/or the guard signal 18,78 of single- sensor element 26,34,38,42; and as shown in Figure 2; the danger that may discern according to processing unit 20 and regulate mode of operations 30,32 according to material parameter 28 and/or tool identification sign 36 and/or power parameter 40.For this reason, processing unit 20 is not by connecting the sensor element 26,34,38,42 of sensor unit 16 at this data wire of describing.Processing unit 20 is at first measured the material of workpiece 22 according to the material parameter of surveying from these two sensor elements 26,42 28.When measurement is subjected to serious and/or unexpected variation, if the material parameter 28 of the workpiece 22 that is made of the parameter of insulator is identified as the material that is different from workpiece 22 in processing unit 20, and be enclosed in be in the workpiece 22 and/or exotic 24 that workpiece 22 comprises on.
In addition, when toolroom machine 12 work, utilize sensor element 38 constantly to survey the power parameter 40 of rotating speed parametric form.When toolroom machine 12 work, processing unit 20 is the constantly current rotating speed or the rotary speed of tools for measurement 62 here.Utilize the rotating speed parameter can survey the possible exotic 24 that next occurs in the workpiece 22 once more, because the different material characteristics between exotic 24 and the workpiece 22 can change the rotating speed parameter.And, utilize the rotating speed parameter can recognize the unwelcome imbalance of workpiece 62, this can point out the possible damage of instrument 62.If can in processing unit 20, utilize the power parameter 40 of sensor element 38 to measure the imbalance of exotic 24 and/or instrument 62, then adjust the mode of operation 32 that constitutes by safe mode 82 according to power parameter 40.The setting according to power parameter 40 and/or material parameter 28 and/or tool identification sign 36 of different working modes 30,32 is similar to this two mode of operations 30,32 (Fig. 2) land productivity of above-mentioned setting and carries out with processing unit 20.In addition, utilize rotating speed parameter and material parameter 28, in the mode of operation that constitutes by saw mode of operation 80, can adapt to current rotating speed and/or the rotary speed of instrument 62 on workpiece 22 and/or exotic 24 automatically by processing unit 20.
In addition, utilize power parameter 40 to obtain the current power of instrument 62 and/or motor unit 68.If the load that utilizes power parameter 40 to survey is too high, from two mode of operations 30,32, select one by processing unit 20, wherein in saw mode of operation 82, by rotating speed and/or the rotary speed that reduces instrument 62, processing unit 20 will reduce works as preload.And, for protection toolroom machine 12 before overload, can start safe mode 82 by processing unit 20, make it possible to protection toolroom machine 12, especially motor unit 68 and/or instrument 62 before overheated and/or further damage.
In alternate configuration of the present invention, can be envisioned for detecting material parameter 28 and rotating speed parameter, sensor element 26,38,42 single-pieces ground constitutes mutually.And, in another design, protective device 10 can only have sensor element 26,42 with detecting material parameter 28 or sensor element 38 with probe power parameter 40.
In Fig. 3, described the alternate configuration of toolroom machine 12.Represent with identical Reference numeral on roughly the same all the other members, feature and the functional principle.In order to distinguish this embodiment, in the accompanying drawing of the embodiment of back, added alphabetical a.Below description embodiment different of qualification and Fig. 1 and Fig. 2 in principle, wherein can be with reference to the description of the embodiment of figure 1 and Fig. 2 about identical all the other members, feature and function.
Fig. 3 shows the toolroom machine 12a that is made of annular saw 14a together with workpiece 22a to be processed in the mode of schematic diagram.Annular saw 14a is made of hand-held annular saw.Hand-held annular saw has protective device 10a, and protective device 10 has sensor unit 16a and computing unit 20a, and wherein sensor unit 16a is provided for receiving guard signal 18a, 78a.Sensor unit 16a has the sensor element 26a that is used for the detecting material parameter, is used for the sensor element 34a and the sensor element 38a that is used for the probe power parameter of prospecting tools distinguishing mark.The sensor element 26a that is used for the detecting material parameter is arranged in 52 fronts, receiving area that are used for instrument 62a with the sensor element 38a that is used for the probe power parameter along direction 84a, wherein, the workpiece 22a that is processing changes its position with respect to the instrument 62a of toolroom machine 12a along direction 84a.Direction 84a is opposite with operative orientation 54a, and hand-held annular saw is moved on workpiece 22a along operative orientation 54a by operating personnel.Receiving area 52a is included in the breach 66a that arranges among the working face 46a of hand-held annular saw, and wherein, working face 46a is provided for the placement part (Auflegen) of the hand-held annular saw on workpiece to be processed 62a.And two sensor element 26a, 38a are arranged among the cover sheet 44a of protective device 10a, cover sheet 44a cover with operating personnel may contact portion the subregion 86a of instrument 62a of front.The sensor element 34a that is used for prospecting tools distinguishing mark 36a is arranged to be subjected to the protection of the housing 58a of hand-held annular saw.In addition, sensor unit 16a is arranged on the side 50a of the 48a of working region dorsad of working face 46a.
Processing unit 20a is provided for utilizing the guard signal 18a, the 78a that receive to measure and/or survey the exotic 24a that is among the workpiece 22a.Guard signal 18a, 78a are here received by sensor element 26a, 38a.
Claims (13)
1. be used for toolroom machine (12; 12a), in particular for annular saw (14; Protective device 14a), described protective device has sensor unit (16; 16a) and processing unit (20; 20a), described sensor unit (16; 16a) be provided for receiving guard signal (18,78; 18a 78a), is characterized in that,
Described processing unit (20,20a) is provided for utilizing the described guard signal (18,78 that receives; 18a, 78a) mensuration is in workpiece (22; Exotic (24 22a); 24a).
2. protective device according to claim 1 is characterized in that,
Described sensor unit (16; 16a) has at least one sensor element (26,42; 26a), described at least one sensor element (26,42; 26a) be provided for detecting material parameter (28; 28a).
3. protective device according to claim 2 is characterized in that,
Described processing unit (20; 20a) be provided for according to described material parameter (28; 28a) regulate mode of operation (30,32; 30a, 32a).
4. according to any described protective device in the aforementioned claim, it is characterized in that,
Described sensor unit (16; 16a) has at least one sensor element (34; 34a), described at least one sensor element (34; 34a) be provided for prospecting tools distinguishing mark (36; 36a).
5. at least according to claim 2 and 4 described protective devices, it is characterized in that,
Described processing unit (20; 20a) be provided for according to described tool identification sign (36; 36a) with described material parameter (28; 28a) regulate mode of operation (30,32; 30a, 32a).
6. according to any described protective device in the aforementioned claim, it is characterized in that,
Described sensor unit (16; 16a) has at least one sensor element (38; 38a), described at least one sensor element (38; 38a) be provided for probe power parameter (40; 40a).
7. at least according to any described protective device in claim 2 and/or 4 and/or 6, it is characterized in that,
Described processing unit (20; 20a) be provided for according to described material parameter (28; 28a) and/or described tool identification sign (36; 36a) and/or described power parameter (40; 40a) regulate mode of operation (30,32; 30a, 32a).
8. be used for toolroom machine (12; 12a), in particular for annular saw (14; Protective device 14a), described protective device has sensor unit (16; 16a) and processing unit (20; 20a), described sensor unit (16; 16a) be provided for receiving guard signal (18,78; 18a 78a), is characterized in that,
Described sensor unit (16; 16a) has at least one sensor element (38; 38a), described at least one sensor element (38; 38a) be provided for probe power parameter (40; 40a).
9. protective device according to claim 8 is characterized in that,
Described processing unit (20; 20a) be provided for according to described power parameter (40; 40a) regulate mode of operation (30,32; 30a, 32a).
10. toolroom machine, especially annular saw (14; 14a), it has according to any described protective device (10 in the aforementioned claim; 10a).
11. toolroom machine according to claim 10 is characterized in that being used for instrument (62; Cover sheet (44 62a); 44a), wherein said protective device (10; Sensor unit (16 10a); 16a) be arranged in described cover sheet (44 at least in part; 44a) inside.
12. toolroom machine according to claim 10 at least is characterized in that working face (46; 46a), wherein, described protective device (10; Sensor unit (16 10a); 16a) be at least partially disposed on described working face (46; Working region dorsad (48 46a); Side (50 48a); 50a).
13. toolroom machine according to claim 10 at least is characterized in that being used for instrument (62; Receiving area (52 62a); 52a), wherein said protective device (10; Sensor unit (16 10a); 16a) be arranged in described receiving area (52; 52a) front.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102008054701.8 | 2008-12-16 | ||
| DE102008054701A DE102008054701A1 (en) | 2008-12-16 | 2008-12-16 | guard |
| PCT/EP2009/063522 WO2010072432A1 (en) | 2008-12-16 | 2009-10-16 | Protective device for a tool, in particular for a circular saw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102256756A true CN102256756A (en) | 2011-11-23 |
Family
ID=41504130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009801509088A Pending CN102256756A (en) | 2008-12-16 | 2009-10-16 | Protective device for a tool, in particular for a circular saw |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP2379292A1 (en) |
| CN (1) | CN102256756A (en) |
| DE (1) | DE102008054701A1 (en) |
| WO (1) | WO2010072432A1 (en) |
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| CN107810075A (en) * | 2015-04-20 | 2018-03-16 | 未来智能有限责任公司 | Apparatus and method for protecting user in the equipment being in using at least a portion in motion |
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| DE102010041726A1 (en) | 2010-09-30 | 2012-04-05 | Robert Bosch Gmbh | Hand machine tool device |
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| EP3372340A1 (en) | 2017-03-10 | 2018-09-12 | Scheppach Fabrikation von Holzbearbeitungsmaschinen GmbH | Method for controlling an electric tool and electric tool set up for carrying out the method |
| DE102018216569A1 (en) * | 2018-09-27 | 2020-04-02 | Robert Bosch Gmbh | Hand machine tool with electronics |
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| DE981268C (en) * | 1943-03-25 | 1900-01-01 | ||
| DE3235194A1 (en) * | 1982-09-23 | 1984-03-29 | Robert Bosch Gmbh, 7000 Stuttgart | METHOD AND DEVICE FOR SECURING TOOLS |
| CA2448479C (en) * | 2002-11-12 | 2009-05-05 | Makita Corporation | Power tools |
| DE10261791A1 (en) * | 2002-12-23 | 2004-07-15 | Robert Bosch Gmbh | Device for protection against accidental contact and method for protecting against contact with a moving part |
| DE102004017939A1 (en) * | 2004-04-14 | 2005-11-03 | Robert Bosch Gmbh | Guided machine tool and method for operating a guided machine tool |
| DE102007041098A1 (en) * | 2006-09-04 | 2008-03-06 | Robert Bosch Gmbh | Machine tool monitoring device |
-
2008
- 2008-12-16 DE DE102008054701A patent/DE102008054701A1/en not_active Withdrawn
-
2009
- 2009-10-16 CN CN2009801509088A patent/CN102256756A/en active Pending
- 2009-10-16 WO PCT/EP2009/063522 patent/WO2010072432A1/en active Application Filing
- 2009-10-16 EP EP09736226A patent/EP2379292A1/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107810075A (en) * | 2015-04-20 | 2018-03-16 | 未来智能有限责任公司 | Apparatus and method for protecting user in the equipment being in using at least a portion in motion |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2379292A1 (en) | 2011-10-26 |
| DE102008054701A1 (en) | 2010-06-17 |
| WO2010072432A1 (en) | 2010-07-01 |
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Application publication date: 20111123 |