Source: https://patents.google.com/patent/DE102012201624A1/en
Timestamp: 2019-12-11 14:08:24
Document Index: 70218512

Matched Legal Cases: ['art,\n4', 'art 4', 'art 4', 'art 4', 'art 4', 'art 4', 'art 4', 'art 4', 'art 4', 'art 4', 'art 4', 'art 4', 'art 4', 'art 4', 'art 4', 'art 4', 'art 4', 'art 4', 'art 4', 'art 4', 'art 4', 'art 4', 'art 4']

DE102012201624A1 - sawblade - Google Patents
DE102012201624A1
DE102012201624A1 DE201210201624 DE102012201624A DE102012201624A1 DE 102012201624 A1 DE102012201624 A1 DE 102012201624A1 DE 201210201624 DE201210201624 DE 201210201624 DE 102012201624 A DE102012201624 A DE 102012201624A DE 102012201624 A1 DE102012201624 A1 DE 102012201624A1
DE201210201624
2012-02-03 Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
2012-02-03 Priority to DE201210201624 priority Critical patent/DE102012201624A1/en
2013-08-08 Publication of DE102012201624A1 publication Critical patent/DE102012201624A1/en
A saw blade has a master blade with a working edge and a support member for connection to a tool shaft of a machine tool, wherein the support member is provided with a first and a second attachment surface for attachment to the machine tool and the attachment surfaces lie in different planes.
The invention relates to a removal or cutting tool, in particular for a machine tool with a rotary oscillation drive of the removal or cutting tool, preferably a rotary oscillating saw blade according to the preamble of claim 1.
In the CN 201907110 U a submersible saw blade for a machine tool is described, which performs an oscillating rotational movement during operation. The immersion saw blade consists of a rectangular master blade, one side of which has a cutting edge with cutting teeth, and a support part connected to the master blade for connection to the machine tool and for driving via the tool shaft. The support member has a central recess for receiving the driving tool shaft and about the central recess annularly grouped, triangular form-fitting elements, which are spaced apart in the circumferential direction and define an intermediate, extending in the radial direction groove. This embodiment of the mounting part makes it possible to attach the diving saw blade to different mounting geometries of machine tools.
The triangular form-fitting elements are arranged on a side surface of the holding part and increase the thickness of the holding part. The mounting geometry on the tool shaft must be designed to receive the positive locking elements and have complementary shaped recesses with a corresponding depth for receiving the positive locking elements.
The invention is based on the object with simple constructive measures an ablation or cutting tool in such a way that a connection with different drive geometries on the machine tool is possible.
The invention relates to removal or cutting tools which are used in machine tools, in particular in hand tool machines and driven by a tool shaft of the machine tool. Both rotational movements of the removal or cutting tools in only one direction as well as rotary oscillation movements come into consideration. The removal or cutting tools have a master blade with a working edge, which is preferably provided as a cutting edge with, for example. Cutting teeth, and a support member, via which the connection to the machine tool. The machine tool is usually provided for this purpose with a mounting flange at the free end of the tool shaft, wherein in the mounting part a recess is introduced, protrudes through the tool shaft in the attached state. The recess in the support member is surrounded by a mounting surface on which normally positive fit geometries are arranged, which cooperate with corresponding form fit geometries on the mounting flange of the tool shaft, so that in the circumferential direction a positive connection between the support member of the removal or cutting tool and the machine tool is given. In principle, various form fit geometries on the support member into consideration, for example, form-fitting recesses form-fitting elements, protrude into the corresponding knobs or protrusions on the machine tool, or vice versa positive locking surveys on the support member, which recesses are assigned to the machine tool. It is also possible a non-rotationally symmetric, outer edge boundary of a mounting surface on the support member, wherein the edge boundary forms the positive locking geometry. The boundary has, for example, a polygonal geometry or a polygonal geometry and is bounded by an enclosing circle.
The removal or cutting tool can be designed as a submerged saw blade with a trapezoidal or at least approximately rectangular base sheet, wherein an outer edge of the master sheet forms a rectilinear or slightly curved working edge. The working edge is preferably designed as a sawing, scraping, separating and / or grinding edge, in particular, the working edge may also be formed partially or in sections as sawing, scraping, cutting and / or grinding edge. Also suitable are removal or cutting tools with a circular or circular segment-shaped master blade whose peripheral edge forms the working edge.
In the removal or cutting tool according to the invention, at least two attachment surfaces are provided for fastening the removal or cutting tool to the machine tool. The mounting surfaces are alternatively used to allow connection with different connection geometries on the machine tool. The attachment surfaces are offset from one another and are in different, spaced and parallel running levels. This ensures that even with an example annular design, the at least two mounting surfaces which extend around the central shaft recess in the support member can be provided without mutual interference with each a positive connection geometry to allow a rotationally positive connection to the machine tool. In this way, it is possible to provide additional connection options for differently designed connection geometries with little effort.
Another advantage of this embodiment is that the axial extension - seen in the direction of the axis through the shaft recess or in the mounted state in the direction of the tool shaft axis - of the support member is not or at least not significantly increased even in the case of two or more mounting surfaces. It is sufficient in principle that the attachment surfaces are only in slightly spaced different planes.
According to an expedient embodiment, it is provided that at least one fastening surface is arranged at a distance from both outer sides of the mounting part. This can be achieved for example by a stamping process, with which the mounting surface is impressed in the support member, whereby at this point a distance to the outside of the support member is achieved. The embossing process can be carried out so that no curvature or elevation arises on the opposite side, so that all attachment surfaces lie within the two outer sides of the support member, wherein one or both outer sides can also each form a mounting surface. According to a preferred embodiment, it is provided that a fastening surface coincides with the outer side and a second fastening surface is arranged at a distance from the two planes, which are formed by the outer sides of the mounting part.
The attachment surfaces may each be annular, wherein the axis forms the center through the shaft recess and the attachment surfaces are arranged concentrically with each other. In the case of concentric arranged annular mounting surfaces, it is expedient that the outermost ring forms a mounting surface in height of the outside of the support member, whereas the further radially inner mounting ring is axially spaced from both outer sides. The radially outer ring may extend to the central recess, so that the inner ring and the outer ring overlap radially.
With these measures, the thickness of the support member is not or only minimally increased compared to embodiments of the prior art. In principle, a plurality of attachment surfaces may also be provided in different planes within the outer sides, wherein the one or more attachment surfaces are produced by stamping, by machining or in any other way. Due to a larger number of attachment surfaces, the number of connection possibilities to different connection geometries on machine tools increases.
In principle, different positive locking geometries can be used for the different attachment surfaces. For example, one or more interlocking elements in the form of form-fitting recesses or elevations can be provided for the radially outer fastening surface. The interlocking geometry of the radially inner mounting surface may be formed by its outer boundary edge, which separates the outer side of the inner mounting surface from the inside of the outer mounting surface. The boundary edge here is preferably non-rotationally symmetrical, in particular in the form of a polygon, for example in the form of a hexagon or twelve-edged. In general, various polygonal boundary edges come into consideration.
Additionally or alternatively, however, the radially further inward mounting surface may be provided with form-fitting elements in the form of recesses or elevations.
Furthermore, it is possible to introduce interlocking elements in the form of recesses both in the radially outer mounting surface and in the radially inner mounting surface and to connect these form-fitting recesses with each other. This opens up additional possibilities for the design of form-fit patterns, for example cross-shaped connection geometries, so that even in the case of only two attachment surfaces, a greater number of connection options for various connection geometries on the machine tool are provided.
According to a further embodiment it is provided that the support member is designed as a bent by at least approximately 180 ° component. The different attachment surfaces in different planes can be achieved by introducing an impression, punching out or the like in one of the parallel sections of the bent-over support part so that a depression is achieved which is far from the outside and the additional one Mounting surface forms. Another attachment surface is provided on one of the outer sides of the support member. In principle, however, other attachment surfaces on the opposite outer side and / or by punched, impressed or the like on the second arm of the bent support member into consideration.
Furthermore, it is possible to provide a space between the parallel arms of the support member in the case of a bent support member or, according to an alternative embodiment, to perform the bend so that the arms lie on one another directly and without any gap.
The attachment surfaces are advantageously formed integrally with the support member of the removal or cutting tool. However, it may also be expedient to arrange the attachment surfaces on an adapter part, which can be connected to the removal or cutting tool. This embodiment has the advantage that conventional saw blades can be used and connected via the adapter part with different connection geometries on the machine tool.
1 in plan view, a plunger saw blade, which has a rectangular master blade with a cutting edge and a support member which is provided with a central shaft recess, are arranged around the two concentric annular mounting surfaces, which lie in different planes,
2 in a perspective view of the support member 1 .
3 a section according to section line III 1 through the support part,
4 in a perspective view of a circular segment-shaped removal or cutting tool with a central, inner support member which similar to the first embodiment has concentric, annular attachment surfaces different levels,
5 a plan view of the saw blade according to 4 .
6 a section through a support member of a saw blade with mounting surfaces in different planes, which are produced by punching or stamping on the same side of the support member,
7 a further embodiment with offset to the outside inward mounting surfaces on opposite sides,
8th an embodiment in which an inwardly offset mounting surface is produced by impressing, wherein on the opposite side a corresponding increase is formed,
9 a support member consisting of two superimposed components, wherein a component has a punched-out for generating an inwardly offset mounting surface,
10 a support member consisting of a bent component with a space between the arms of the support member,
11 a support member consisting of a bent component, wherein the arms of the support member lie directly on each other.
In the 1 to 3 a first embodiment is shown, in which the removal or cutting tool 1 is designed as a dip saw blade, which is a rectangular master sheet 2 with a working edge designed as a cutting edge 3 with saw teeth and a mounting part 4 having, which with the master sheet 2 connected is. The working edge 3 may alternatively or additionally be formed at least partially as a sawing, scraping, separating and / or grinding edge. 2 it can be seen that the mounting part 4 opposite the master sheet 2 is executed cranked, so that the plane of the stem leaf 2 and the plane of the support part 4 parallel to each other. The working edge 3 with the cutting teeth is on the mounting part 4 opposite side on the stem leaf 2 ,
The mounting part 4 serves to fasten the removal or cutting tool 1 on a machine tool and has for this purpose a connection geometry 5 on, which has a shaft recess 6 includes for receiving the tool shaft in the assembled state. The shaft recess 6 is designed as edge partially open recess. The connection geometry 5 in the holder part 4 further comprises a first attachment surface 7 and a second attachment surface 8th , wherein the first attachment surface 7 with the bottom outside of the support part 4 coincides and the second attachment surface 8th opposite both outer sides of the support part 4 axially inward is moved, in particular 3 can be seen. The second attachment surface 8th is thus within the two outer sides of the support member 4 , Preferably, the attachment surfaces 7 . 8th aligned substantially parallel to each other. However, it may also be advantageous if the attachment surfaces 7 . 8th are not aligned parallel to each other.
The two attachment surfaces 7 and 8th are arranged concentrically to each other and surround annularly the central shaft recess 6 , The mounting surface located on the lower outer side 7 extends radially outward than the axially offset, second mounting surface 8th which lies radially inward. The formed on the outside, first mounting surface 7 but stretches, like 3 to remove radially as well as the second mounting surface 8th inwardly to the central shaft recess 6 so that there is a radially overlapping area between the attachment surfaces 7 and 8th There are, however, axially offset from each other.
The first, radially outward reaching mounting surface 7 is a positive locking geometry a plurality of positive locking recesses 9 assigned, which are elongated and extend in the radial direction. Distributed over the circumference are a plurality of such Formschlussausnehmungen 9 in concentric distance to the shaft recess 6 arranged. For attachment to the tool shaft protrude on a mounting flange of the tool shaft protrusions in the positive engagement recesses 9 one.
Also the second, radially inwardly offset mounting surface 8th is associated with a positive locking geometry, which serves as a non-rotationally symmetrical boundary 10 in the transition between inner and outer attachment surface 8th . 7 is trained. The non-rotationally symmetric boundary 10 is designed as a polygon, for example as a twelve-edged. The boundary 10 is located in the radially outer region of the inner mounting surface 8th ,
Into the inner mounting surface 8th are also form-fitting recesses 11 introduced, which are arranged to each other at a 90 ° angle and with the radially outermost form-fitting recesses 9 in the outer mounting surface 7 are connected. This results, together with the edge-side opening of the shaft recess 6 , a cross-shaped geometry of the form-fitting recesses 9 and 11 , which offers additional possibilities for a positive connection with the machine tool.
In a preferred embodiment, the mounting part 4 a thickness h. The thickness h is preferably less than or equal to 1.5 mm, in particular less than or equal to 1.45 mm, ideally less than or equal to 1.25 mm, whereby a recording of the removal or cutting tool according to the invention 1 on a possible large number of different available on the market machine tool with a rotary oscillation drive for the removal or cutting tool is guaranteed.
In a particularly preferred embodiment according to 3 is the mounting surface 8th by a depth h2 relative to the mounting surface 7 opposite outside of the support part 4 - For example, by removing and / or forming machining - set back or in the holder part 4 admitted. The mounting surface 8th is thus at a height h1 relative to the mounting surface 7 offset to this. According to the example 3 applies h ≈ h1 + h2.
In a preferred embodiment, the height h1 is in the range between 20% and 80% of the thickness h, in particular approximately 50% of the thickness h of the holding part 4 ,
In the 4 and 5 a further embodiment is shown with a circular segment-shaped removal or cutting tool, which executes a rotary oscillation movement during operation. The removal or cutting tool 1 has a circular segment-shaped master sheet 2 on whose peripheral edge the working edge 3 forms. The working edge 3 is preferably designed as a sawing, scraping, separating and / or grinding edge. In a centric recess in the stem leaf 2 is a mounting part 4 arranged with a connection geometry 5 is provided, which has a central shaft recess 6 for receiving a tool shaft and two lying in different planes mounting surfaces 7 and 8th includes. As in the first embodiment, the attachment surfaces 7 and 8th each annular and concentric with each other or overlapping with the shaft recess 6 arranged as a center, with the attachment surfaces 7 and 8th lie in different, mutually parallel planes. The radially outer mounting surface 7 falls with the outside of the support part 4 together, the staggered, radially inner mounting surface 8th in contrast, lies at a distance to both outer sides of the support member 4 , Furthermore, as in the first embodiment, the first attachment surface 7 positive-drive cutouts 9 and in the second attachment surface 8th positive-drive cutouts 11 brought in. The transition area between the inside mounting surface 8th to the outside mounting surface 7 forms a non-rotationally symmetrical edge boundary, which is preferably designed as a polygon.
In the embodiments, the radially inwardly offset mounting surface 8th by ablation (eg milling, eroding, etc.), embossing, punching or the like executed offset parallel to both outer sides of the support member.
In the other 6 to 11 are further embodiments with connection geometries in the support part 4 shown. According to 6 are at a distance to both outer sides of the support part 4 two different mounting surfaces in different planes 8th and 12 in the holder part 4 brought in. This is an additional attachment surface 12 given with additional connection options. Also an outside of the support part 4 forms a mounting surface 7 also in the following embodiments. The mounting surface 12 is about the depth h2 opposite the mounting surface 7 introduced into the support member. In a preferred embodiment, the depth h2, as already described in the embodiment described above 3 , in the range between 20% and 80% of the thickness h, in particular at about 50% of the thickness h of the support member 4 , The mounting surface 8th which is between the attachment surfaces 7 and 12 is arranged, is preferably in turn by the distance h21 relative to the mounting surface 12 or the depth h22 relative to the mounting surface 7 in the holder part 4 brought in. Preferably, the distance h21 applies 20% h2 ≤ h21 ≤ 80% h2 and for the depth h22 h22 ≈ h2 - h21 ≈ (h - h1) - h21.
In a particularly preferred embodiment applies h21 ≈ h22 ≈ 50% h2.
In a modification of the example according to 6 It may also be advantageous to provide several additional attachment surfaces also several additional, offset planes. In this case, the same conditions would apply to other levels with regard to the distances.
According to 7 are two offset to the outer sides, but arranged on opposite sides mounting surfaces 8th and 12 in the holder part 4 introduced, which are each at a distance to the adjacent outside. In a preferred embodiment according to 7 they are already here too 6 known relationships between the distances of the attachment surfaces 7 . 8th and 12 to each other, to which reference is made at this point.
In a preferred embodiment according to 6 . 7 or 8th the holder part has a thickness h which is preferably less than or equal to 1.5 mm, in particular less than or equal to 1.45 mm, ideally less than or equal to 1.25 mm.
According to 8th is the opposite of the outside 7 offset processing surface 8th produced by impressing, whereby on the opposite outside a hump or a survey 13 arises.
According to 9 consists of the support part 4 from two individual, superimposed, parallel components 4a . 4b which are joined together, being in the component 4b a punched hole is made, eliminating the mounting surface 8th at the bottom of the overlying, first component 4a is formed.
According to the 10 and 11 is the fixing part 4 by a bent by 180 ° component with arms 4a and 4b educated. In the arm 4b is a punched cut, creating the bottom of the overlying arm 4a the mounting surface 8th forms. According to 10 lie the two arms 4a and 4b at a distance from each other, so that a gap between the arms is formed, whereas according to 11 the two arms 4a and 4b lie directly on one another.
In a particularly preferred embodiment according to 9 to 11 the holder part has a thickness h which is preferably less than or equal to 1.5 mm, in particular less than or equal to 1.45 mm, ideally less than or equal to 1.25 mm.
Also in the exemplary embodiments 9 to 11 There are analogous advantages when the distances of the resulting planes of the mounting surfaces 7 . 8th Corresponding relationships obey as the example of the 3 and 6 to 8th ,
CN 201907110 U [0002]
Removal or cutting tool, in particular for a machine tool with a rotary oscillation drive of the removal or cutting tool, preferably a rotary oscillating saw blade, in particular for a hand tool, with a master blade ( 2 ), which has a working edge ( 3 ), and with a support part ( 4 ) for connection to a tool shaft of the machine tool, wherein the mounting part ( 4 ) a shaft recess ( 6 ) for receiving the shaft and a mounting surface ( 7 . 8th ) and a positive locking geometry for attachment to the machine tool, characterized in that the mounting part ( 4 ) at least a first and a second attachment surface ( 7 . 8th ) for attachment to the machine tool, wherein the mounting surfaces ( 7 . 8th ) lie in different levels.
Removal or cutting tool according to claim 1, characterized in that at least one fastening surface ( 7 . 8th ) at a distance to both outer sides of the support part ( 4 ) is arranged.
Removal or cutting tool according to claim 1 or 2, characterized in that the attachment surfaces ( 7 . 8th ) from the outsides of the support part ( 4 ) are limited.
Removal or cutting tool according to one of claims 1 to 3, characterized in that a fastening surface ( 7 ) with an outside of the support part ( 4 ) coincides.
Removal or cutting tool according to one of claims 1 to 4, characterized in that at least two attachment surfaces ( 8th . 12 ) at a distance from the outer sides of the support part ( 4 ) lie.
Removal or cutting tool according to one of claims 1 to 5, characterized in that to the two outer sides of the support member ( 4 ) spaced mounting surface ( 8th ) as embossed surface in the support part ( 4 ) is trained.
Removal or cutting tool according to one of claims 1 to 6, characterized in that the positive locking geometry as to the shaft recess ( 6 ) grouped positive-locking elements is formed.
Removal or cutting tool according to claim 7, characterized in that the positive locking elements on at least one mounting surface ( 7 . 8th . 12 ) are arranged.
Removal or cutting tool according to claim 7 or 8, characterized in that the positive-locking elements are formed as recesses.
Removal or cutting tool according to one of claims 1 to 9, characterized in that the two attachment surfaces ( 7 . 8th ) are radially spaced from each other.
Removal or cutting tool according to claim 10, characterized in that the positive locking geometry as a non-rotationally symmetrical, outer edge boundary ( 10 ) the radially inner mounting surface ( 7 . 8th . 12 ) is trained.
Removal or cutting tool according to claim 10 or 11, characterized in that in both mounting surfaces ( 7 . 8th ,) Formschlussausnehmungen are introduced, which are interconnected.
Removal or cutting tool according to one of claims 1 to 12, characterized in that the two attachment surfaces ( 7 . 8th ) are formed overlapping.
Removal or cutting tool according to one of claims 1 to 13, characterized in that the two attachment surfaces ( 7 . 8th ) are annular.
Removal or cutting tool according to one of claims 1 to 14, characterized in that the mounting part ( 4 ) is designed as a bent by 180 ° component.
Removal or cutting tool according to one of claims 1 to 15, characterized in that the master blade ( 2 ) is circular or circular segment-shaped.
Removal or cutting tool according to one of claims 1 to 15, characterized in that the master blade ( 2 ) is trapezoidal or at least approximately rectangular.
Removal or cutting tool according to one of claims 1 to 17, characterized in that an adapter part is provided, the first and second mounting surface ( 7 . 8th ) and is to be connected to the removal or cutting tool.
Machine tool, in particular hand tool with a removal or cutting tool ( 1 ) according to any one of claims 1 to 18.
DE201210201624 2012-02-03 2012-02-03 sawblade Withdrawn DE102012201624A1 (en)
DE201210201624 DE102012201624A1 (en) 2012-02-03 2012-02-03 sawblade
PCT/EP2013/050031 WO2013113523A1 (en) 2012-02-03 2013-01-03 Saw blade
DE102012201624A1 true DE102012201624A1 (en) 2013-08-08
ID=47522653
DE201210201624 Withdrawn DE102012201624A1 (en) 2012-02-03 2012-02-03 sawblade
DE (1) DE102012201624A1 (en)
WO (1) WO2013113523A1 (en)
DE102017213669A1 (en) * 2016-08-22 2018-02-22 Robert Bosch Gmbh Tool device for a hand tool
CN201907110U (en) 2010-06-25 2011-07-27 南京德朔实业有限公司 Working element capable of adapting to various shaft ends
US2614441A (en) * 1947-04-04 1952-10-21 Goddard & Goddard Company Cutter and method of forming the same
2012-02-03 DE DE201210201624 patent/DE102012201624A1/en not_active Withdrawn
2013-01-03 WO PCT/EP2013/050031 patent/WO2013113523A1/en active Application Filing
WO2013113523A1 (en) 2013-08-08
US20060217048A1 (en) 2006-09-28 Grinding-disk receiving element especially for a hand-guided electric grinding tool
US8585469B2 (en) 2013-11-19 Adapter for mounting a tool on an oscillating drive
US8573903B2 (en) 2013-11-05 Round cutting insert with anti-rotation feature
EP2152475B1 (en) 2010-11-10 Adapter for a motor-driven machine tool with tool to be rotatably driven
CN1535794A (en) 2004-10-13 Hand-held tool machine with protective cover
JP2007502719A (en) 2007-02-15 Cutting tool configured to improve engagement with tool holder
US8397604B2 (en) 2013-03-19 Method of manufacturing a cutting member of a shaver
CN102099141A (en) 2011-06-15 Cutting insert
EP1507629B1 (en) 2009-09-16 System comprising a tool retainer
CN103764328A (en) 2014-04-30 Saw blade for a machine tool
CN102259328A (en) 2011-11-30 For adapting the working element to the power tool shaft adapter
JP2006275111A (en) 2006-10-12 Rotating body balance correcting member and rotating body balance correcting method
EP2380702A2 (en) 2011-10-26 Power tool