Sawing tool, in particular saw blade
12134136 ยท 2024-11-05
Assignee
Inventors
Cpc classification
International classification
Abstract
A sawing tool, in particular a saw blade, includes: at least one connection region, in particular a shaft, for forming a connection to a tool holder of a hand-held power tool; at least one main body, in particular a carrier, which is connected to the connection region and is designed in one piece; at least one set of saw teeth which is located on the main body; and a plurality of reduction grooves which are located on the main body, in particular introduced into the main body by removing material, and which have a main extension running transversely to a cutting edge of the saw teeth. The reduction grooves extend at least over more than 50% of a total transverse extent of at least one flank of the main body from the cutting edge towards a rear side of the main body, the rear side facing away from the saw teeth.
Claims
1. A sawing tool, comprising: at least one connecting region configured to connect to a tool receptacle of a portable power tool; and at least one main body connected to the at least one connecting region, said at least one main body having at least one saw toothing arranged on the at least one main body and having a multiplicity of reduction grooves arranged on the at least one main body, each of said multiplicity of reduction grooves having a respective main extent extending transversely to a cutting edge of the at least one saw toothing, wherein a width of the at least one main body at the multiplicity of reduction grooves is less than a width of the at least one main body at a location that is not at the multiplicity of reduction grooves, the multiplicity of reduction grooves extend in the direction of a rear side of the at least one main body facing away from the at least one saw toothing of the at least one main body at least over more than 50% of a total transverse extent of at least one flank of the at least one main body, each of the multiplicity of reduction grooves has a respective maximum transverse extent as seen along a longitudinal extent of the at least one main body, and a respective depth from the at least one flank toward an axis of symmetry of the at least one main body, the respective maximum transverse extent is greater than the respective depth, the at least one main body defines a first width at the rear side in a plane orthogonal to the longitudinal extent, the at least one main body defines a second width in the plane adjacent a portion of the multiplicity of reduction grooves distal to the at least one saw toothing, and the first width is less than the second width, the at least one main body includes at least one web portion having a minimum transverse extent, along the longitudinal extent of the main body, between adjacent ones of the multiplicity of reduction grooves, which is less than a respective maximum extent of the adjacent ones of the multiplicity of reduction grooves along the longitudinal extent of the at least one main body, the at least one saw toothing includes at least one tooth, the at least one tooth includes a tooth flank having an extent along the longitudinal extent, the minimum transverse extent of the at least one web is less than the extent of the tooth flank along the longitudinal extent; and the respective maximum extents of the adjacent ones of the multiplicity of reduction grooves are greater than the extent of the tooth flank along the longitudinal extent.
2. The sawing tool as claimed in claim 1, wherein said at least one web extends starting from a saw-tooth root of the at least one saw toothing in the direction of the straight rear side at least over more than 50% of the total transverse extent of the at least one flank of the at least one main body.
3. The sawing tool as claimed in claim 1, wherein: said at least one saw toothing includes a plurality of teeth; and said at least one web does not extend into any of the plurality of teeth.
4. The sawing tool as claimed in claim 1, wherein: the at least one flank comprises a first flank on a first side of the at least one main body and a second flank on a second side of the at least one main body opposite the first side; and the multiplicity of reduction grooves comprises a first plurality of reduction grooves arranged on the first flank and second plurality of reduction grooves arranged on the second flank.
5. The sawing tool as claimed in claim 4, wherein the first plurality of reduction grooves are not aligned with the second plurality of reduction grooves along the cutting edge.
6. The sawing tool as claimed in claim 1, wherein each of the multiplicity of reduction grooves is arranged between a respective pair of the at least one saw toothing and the rear side.
7. The sawing tool as claimed in claim 1, wherein the multiplicity of reduction grooves, as seen along the longitudinal extent of the at least one main body have different maximum main extents.
8. The sawing tool as claimed in claim 1, wherein the multiplicity of reduction grooves as seen along the longitudinal extent of the at least one main body have different maximum transverse extents.
9. The sawing tool as claimed in claim 1, wherein the at least one main body has at least one material-free region in addition to the multiplicity of reduction grooves.
10. The sawing tool as claimed in claim 1, wherein the sawing tool is a saw blade.
11. The sawing tool as claimed in claim 1, wherein the at least one connecting region includes a shank.
12. The sawing tool as claimed in claim 1, wherein the at least one main body is formed integrally with the connecting region.
13. The sawing tool as claimed in claim 1, wherein the multiplicity of reduction grooves arranged on the at least one main body are introduced into the at least one main body by material removal.
14. The sawing tool as claimed in claim 1, wherein the multiplicity of reduction grooves extend starting from the cutting edge directly in the direction of the straight rear side facing away from the at least one saw toothing of the at least one main body at least over more than 50% of the total transverse extent of the at least one flank of the at least one main body.
15. The sawing tool as claimed in claim 1, wherein none of the multiplicity of reduction grooves extend into any of the at least one saw toothing.
16. The sawing tool as claimed in claim 1, wherein each of said respective main extents extend transversely to the cutting edge of the at least one saw toothing at an angle of ninety degrees.
17. The sawing tool as claimed in claim 2, wherein: said at least one web has an outer surface which is parallel to a plane of symmetry of the at least one main body; a respective groove bottom of each of the multiplicity of reduction grooves is parallel to the plane of symmetry; and the at least one flank extends from the at least one web to the rear side in a straight line.
18. A sawing tool, comprising: a connecting region configured to connect to a tool receptacle of a portable power tool; and a main body extending from the connecting region, said main body having a longitudinal extent, a saw toothing, a rear side facing away from the saw toothing, a plurality of reduction grooves, each of said plurality of reduction grooves having a respective main extent extending transversely to the saw toothing, and at least one web portion having a minimum transverse extent, along the longitudinal extent of the main body, between adjacent ones of the plurality of reduction grooves, which is less than a respective maximum extent of the adjacent ones of the plurality of reduction grooves along the longitudinal extent of the main body, wherein: the main body defines a first width in a plane orthogonal to the longitudinal extent at the rear side, the main body defines a second width in the plane and adjacent a portion of the plurality of reduction grooves distal to the saw toothing, the first width is less than the second width, the saw toothing includes at least one tooth, the at least one tooth includes a tooth flank having an extent along the longitudinal extent, the minimum transverse extent of the at least one web is less than the extent of the tooth flank along the longitudinal extent; and the respective maximum extents of the adjacent ones of the plurality of reduction grooves are greater than the extent of the tooth flank along the longitudinal extent.
19. A sawing tool, comprising: a connecting region configured to connect to a tool receptacle of a portable power tool; and a main body extending from the connecting region, said main body having a longitudinal extent, a saw toothing, a rear side facing away from the saw toothing, a plurality of reduction grooves, each of said plurality of reduction grooves having a respective maximum main extent extending transversely to the saw toothing, and at least one web portion having a minimum transverse extent, along the longitudinal extent of the main body, between adjacent ones of the plurality of reduction grooves, which is less than a respective maximum extent of the adjacent ones of the plurality of reduction grooves along the longitudinal extent, wherein: the saw toothing includes at least one tooth; the at least one tooth includes a tooth flank having an extent along the longitudinal extent; the minimum transverse extent of the at least one web is less than the extent of the tooth flank along the longitudinal extent; and the respective maximum extents of the adjacent ones of the plurality of reduction grooves are greater than the extent of the tooth flank along the longitudinal extent.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
(1) Further advantages will become apparent from the following description of the drawing. In the drawing, six exemplary embodiments of the disclosure are illustrated. The drawing, the description and the claims contain numerous features in combination. A person skilled in the art will expediently also consider the features individually and combine them to form useful further combinations.
(2) In the drawing:
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DETAILED DESCRIPTION
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(13) The main body 18a has preferably a maximum longitudinal extent 48a that extends from a tip 54a of the main body 18a to the connecting region 12a, in particular the shank, in particular along a longitudinal axis 56a of the main body 18a. The tip 54a of the main body 18a has preferably an undulating shape, in particular as seen in a main extent plane of the sawing tool 10a.
(14) The main body 18a is configured preferably as a carrier of the sawing tool 10a. The saw toothing 20a can have been introduced directly into the main body 18a, in particular by milling, grinding or the like, or the saw toothing 20a is configured as a strip of saw teeth, which is arranged on the main body 18a by means of a materially bonded connection. It is also conceivable for the saw toothing 20a to have a particle tipping, for example a diamond particle or corundum particle tipping or the like. The saw toothing 20a may be formed from a material that is different from the material of the main body 18a or the saw toothing 20a is formed from the same material as the main body 18a. Preferably, a cutting edge 24a of the saw toothing 20a extends at an angle to a rear side 28a of the main body 18a, in particular to a plane comprising or defining the rear side 28a, and/or to the longitudinal axis 56a of the main body 18a (cf.
(15) The reduction grooves 22a, 40a extend, in particular starting from the cutting edge 24a in the direction of the rear side 28a, facing away from the saw toothing 20a, of the main body 18a, at least over more than 50% of a total transverse extent 30a, in particular of a total height, of at least one flank 32a, 42a of the main body 18a. In particular, the reduction grooves 22a, 40a extend, in particular starting from the cutting edge 24a in the direction of the rear side 28a of the main body 18a, at least over more than 60%, preferably over more than 80%, preferentially over more than 90% of the total transverse extent 30a, in particular of the total height, of the at least one flank 32a, 42a of the main body 18a. Particularly preferably, the reduction grooves 22a, 40a extend, in particular as seen in a direction extending at least substantially perpendicularly to the cutting edge 24a and/or at least substantially perpendicularly to the longitudinal axis 56a of the main body 18a, entirely over the total transverse extent 30a, in particular the total height, of the at least one flank 32a of the main body 18a.
(16) Preferably, the reduction grooves 22a, 40a extend, in particular constantly, in a rectilinear manner, in particular starting from the cutting edge 24a in the direction of the rear side 28a, facing away from the saw toothing 20a, of the main body 18a. It is also conceivable, however, for the reduction grooves 22a, 40a to have a course that differs from an, in particular constant, rectilinear course, in particular starting from the cutting edge 24a in the direction of the rear side 28a, facing away from the saw toothing 20a, of the main body 18a, for example a zigzagging course, an undulating course, a meandering course, an arcuate course, or the like, in particular as seen in the main extent plane of the sawing tool 10a. Preferably, the reduction grooves 22a, 40a have a continuous course, in particular starting from the cutting edge 24a in the direction of the rear side 28a, facing away from the saw toothing 20a, of the main body 18a. It is also conceivable, however, for the reduction grooves 22a, 40a to have an interrupted course, in particular such that, starting from the cutting edge 24a in the direction of the rear side 28a, facing away from the saw toothing 20a, of the main body 18a, a plurality of groove subregions are assigned to a single reduction groove 22a, 40a on the at least one flank 32a, 42a, such that a plurality of reduction grooves 22a, 40a are arranged in series one after another, starting from the cutting edge 24a in the direction of the rear side 28a, facing away from the saw toothing 20a, of the main body 18a, on the at least one flank 32a, 42a, or the like. Preferably, the reduction grooves 22a, 40a are arranged in, in particular have been introduced into, a face defining the at least one flank 32a, 42a.
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(18) In particular, the web 34a extends, in particular starting from a saw-tooth root 36a of the saw toothing 20a in the direction of the rear side 28a of the main body 18a, at least over more than 60%, preferably over more than 80%, preferentially over more than 90% of the total transverse extent 30a, in particular the total height, of the at least one flank 32a, 42a of the main body 18a. Particularly preferably, the web 34a extends, in particular as seen in the direction extending at least substantially perpendicularly to the cutting edge 24a and/or at least substantially perpendicularly to the longitudinal axis 56a of the main body 18a, entirely over the total transverse extent 30a, in particular the total height, of the at least one flank 32a, 42a of the main body 18a, wherein in particular the saw toothing 20a is formed in a web-free manner. A main extent of the web 34a extends in particular at least substantially perpendicularly to the cutting edge 24a and/or at least substantially perpendicularly to the longitudinal axis 56a of the main body 18a. Preferably, the web 34a extends, in particular constantly, in a rectilinear manner, in particular starting from the saw-tooth root 36a of the saw toothing 20a in the direction of the rear side 28a, facing away from the saw toothing 20a, of the main body 18a. It is also conceivable, however, for the web 34a to have a course that differs from an, in particular constant, rectilinear course, in particular starting from the saw-tooth root 36a of the saw toothing 20a in the direction of the rear side 28a, facing away from the saw toothing 20a, of the main body 18a, for example a zigzagging course, an undulating course, a meandering course, an arcuate course or the like, in particular as seen in the main extent plane of the sawing tool 10a. Preferably, the web 34a has a continuous course, in particular starting from the saw-tooth root 36a of the saw toothing 20a in the direction of the rear side 28a, facing away from the saw toothing 20a, of the main body 18a. It is also conceivable, however, for the web 34a to have an interrupted course, in particular such that, starting from the saw-tooth root 36a of the saw toothing 20a in the direction of the rear side 28a, facing away from the saw toothing 20a, of the main body 18a, a plurality of web regions of the web 34a are arranged on the at least one flank 32a, 42a, such that a plurality of webs 34a are arranged in series one after another, starting from the saw-tooth root 36a of the saw toothing 20a in the direct on of the rear side 28a, facing away from the saw toothing 20a, of the main body 18a, on the at least one flank 32a, 42a, or the like. Preferably, in particular in each case, one web 34a of the main body 18a borders reduction grooves 22a, 40a that are directly adjacent to one another. Preferably, as seen along the longitudinal axis 56a of the main body 18a, a web 34a and a reduction groove 22a, 40a are arranged alternately on the at least one flank 32a, 42a, in particular as seen from the connecting region 12a in the direction of the tip 54a of the sawing tool 10a.
(19) Preferably, the main body 18a comprises a multiplicity of webs 34a, wherein a web 34a is arranged preferably between two reduction grooves 22a, 40a, in particular as seen along the longitudinal axis 56a of the main body 18a. It is conceivable for the webs 34a to be arranged only on the at least one flank 32a or for the webs 34a to be arranged on the at least one flank 32a and on the at least one further flank 42a of the main body 18a. When the webs 34a are arranged on the flank 32a and on the further flank 42a of the main body 18a, it is conceivable in particular for the webs 34a that are arranged on the at least one flank 32a to be arranged in a manner aligned with the webs 34a that are arranged on the further flank 42a, or for the webs 34a that are arranged on the at least one flank 32a, in particular as seen along the longitudinal axis 46a of the main body 18a, to be arranged in an offset manner relative to the webs 34a that are arranged on the further flank 42a (of
(20) The reduction grooves 22a, 40a are arranged on both sides of the main body 18a, wherein reduction grooves 22a are arranged on the flank 32a and further reduction grooves 40a are arranged on the further flank 42a of the main body 18a (cf.
(21) Preferably, the reduction grooves 22a, 40a, as seen along the longitudinal extent 48a of the main body 18a, have different maximum main extents 26a (cf.
(22) The reduction grooves 22a, 40a, as seen along the longitudinal extent 48a of the main body 18a, have different maximum transverse extents 50a. Preferably, a maximum transverse extent 50a of an individual reduction groove 22a, 40a extends, starting from the web 34a, bordering the reduction groove 22a, 40a, of the main body 18a as far as a further web 34a, which is located closest along the longitudinal axis 56a and likewise borders the reduction groove 22a, 40a, of the main body 18a. Preferably, a maximum transverse extent 50a of an individual reduction groove 22a, 40a corresponds to a maximum spacing of mutually facing edges of the web 34a and of the further web 34a in a direction extending at least substantially parallel to the longitudinal axis 56a of the main body 18a, wherein the web 34a and the further web 34a border the reduction groove 22, 34a. It is also conceivable, however, for the reduction grooves 22a, 34a, as seen along the longitudinal extent 48a of the main body 18a, to have identical maximum transverse extents 50a, in particular maximum transverse extents 50a that are constant at least in terms of numerical value.
(23) In at least one exemplary embodiment, it is conceivable for the main body 18a to have at least one material-free region 52a (indicated only by dashed lines in
(24) Preferably, at least two saw teeth 44a, 46a of the saw toothing 20a are assigned to one of the reduction grooves 22a, 40a (cf.
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(26) In a method for producing the sawing tool 10a, preferably in at least one method step, at least one of the reduction grooves 22a, 40a, in particular all of the reduction grooves 22a, 40a, is/are introduced into the main body 18a as a result of a material-removing machining process, for example grinding, milling or the like. Preferably, in at least one method step, the material-free region 52a, in particular a gap, a hole, a bore or the like, could be introduced into the main body 18a. Alternatively, it is also conceivable for the sawing tool 10a to be produced by means of an additive process.
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