Stop device and saw blade
The mechanical depth stop device within the shank area of oscillating tools addresses stability, precision, and cost issues by using a sliding mechanism and lightweight components for quick adjustment and universal applicability.
Patent Information
- Application Number
- PCT/EP2025/059848
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2024-04-24
- Filing Date
- 2025-04-10
- Publication Date
- 2025-10-30
AI Technical Summary
Existing mechanical depth stop devices for oscillatingly driven cutting tools are limited by stability, precision, and cost-effectiveness, often requiring complex assembly and material usage.
A mechanical depth stop device with a support element and additional depth stop element located within the shank area, featuring a sliding mechanism, positive locking elements, and lightweight components, allowing for quick adjustment and universal applicability across various tools.
The solution provides high flexibility, stability, precision, and cost-effectiveness by enabling quick adjustment and universal application, while reducing material costs and ensuring high positioning accuracy.
Smart Images

Figure EP2025059848_30102025_PF_FP_ABST
Abstract
Description
[0001] Description
[0002] Stop device and saw blade
[0003] State of the art
[0004] A stop device, in particular a mechanical depth stop device, has already been proposed for an oscillatingly driven cutting or machining tool of a hand-held machine tool, which has at least one cutting edge arranged on a shank of the tool, with at least one support element which can be arranged at least on a first side of the shank, and with at least one curved depth stop element which, in a mounted state, runs at least substantially in a parallel curve to the cutting edge, and which is designed to limit a cutting depth of the cutting edge of the tool into a workpiece.
[0005] Disclosure of the invention
[0006] The invention relates to a stop device, in particular a mechanical depth stop device, for an oscillatingly driven cutting or machining tool of a hand-held machine tool, which has at least one cutting edge arranged on a shank of the tool, with at least one support element which can be arranged on at least a first side of the shank, and with at least one curved depth stop element which, in a mounted state, runs at least substantially in a parallel curve to the cutting edge, and which is designed to limit a cutting depth of the cutting edge of the tool into a workpiece.It is proposed that the support element shall have at least one further depth stop element which is designed to support a force acting on the depth stop element, in particular on the shank, wherein at least the depth stop element and the further depth stop element can be arranged completely within a shank area of the tool.
[0007] The design of the stop device according to the invention advantageously provides a high degree of flexibility, since the stop device can be changed quickly because it is located entirely within the shank area. Advantageously, a highly stable design can be provided because the additional depth stop element supports the force acting on it, particularly on the shank. Advantageously, high precision can be provided because, in a mounted state, the depth stop element and the additional depth stop element are located entirely within the shank area of the tool. Advantageously, a cost-effective design can be provided because material costs can be saved, particularly due to the arrangement entirely within the shank area.Advantageously, user comfort can be provided, as the stop device in particular is universally applicable to a wide variety of tools.
[0008] Preferably, the hand-held power tool has an oscillating cutting or machining tool. Preferably, the power tool has a drive configured to drive the tool, in particular the cutting edge of the tool, in an oscillating motion, especially in a reciprocating motion. Preferably, the tool is designed as a saw blade or a cutting blade. Preferably, the stop device is designed as a mechanical depth stop. Preferably, the stop device is designed to be universally mountable on different tools. Preferably, the stop device is designed to mechanically limit the cutting depth. Preferably, the stop device is designed to be removable. Preferably, the stop device is designed as a single piece. It is conceivable that a cutting depth can be adjusted by means of a sliding mechanism of the depth stop element.Alternatively or additionally, it is conceivable that the stop device is available at different depths, particularly longitudinally in a depth direction. A "depth" or "depth direction" is understood to mean, in particular, a length that is arranged at least substantially parallel to a longitudinal extent of the tool and / or that is arranged at least substantially perpendicular to a cutting movement and / or that is arranged at least substantially parallel to a shortest distance between the depth stop element and the next depth stop element. "At least substantially" in this context means, in particular, that a deviation from a predetermined value is less than 25%, preferably less than 10%, and most preferably less than 5% of the predetermined value.The term "configured" should be understood to mean specifically programmed, designed, and / or equipped. The fact that an object is configured for a specific function should be understood to mean, in particular, that the object fulfills and / or executes this specific function in at least one application and / or operating state.
[0009] In particular, the cutting edge has at least one cutting tooth, preferably a plurality of cutting teeth, which are arranged at least substantially along the cutting edge and / or form the cutting edge. Preferably, the cutting edge has a curved, in particular polygonal, profile. In particular, a radius of the curved profile could coincide at least substantially with an axis of rotation of a drive of the hand-held power tool. Preferably, the at least one cutting tooth has a tip. Preferably, the tips of the cutting teeth have at least substantially the same shortest distance to the depth stop element. Preferably, the depth stop element and the cutting edge run in a parallel curve to each other. Alternatively, it is also conceivable that the cutting edge runs straight.In an alternative embodiment, the cutting edge could also be designed as a cutting blade, particularly a continuous one, which maintains at least substantially the same shortest distance to the depth stop element along its cutting length. Preferably, the cutting edge is integrally connected to the tool shank. In this context, a "curved" cutting edge is understood to mean, in particular, that the cutting edge formed by a line connecting the tips of the cutting teeth has a curvature. Preferably, the curved cutting edge is formed by a shortest, continuously curved line connecting the tooth tips. It is conceivable that the curvature along the cutting edge varies in degree, and in particular that the radius of curvature along the cutting edge is variable. For example, the connecting line could be parabolic.Preferably, the cutting edge is symmetrical with respect to a perpendicular bisector of the cutting edge. Particularly preferably, the cutting edge forms at least substantially a circular segment. In this context, "at least substantially" means, in particular, that more than 50%, preferably more than 80%, of the length of the working edge forms a circular segment. Particularly preferably, the center of the circular segment lies at least substantially on the axis of rotation of an oscillating saw motion for which the saw blade is designed. In this context, "at least substantially" means, in particular, that the position of the center of the circular segment and the position of the axis of rotation deviate by less than 20%, preferably by less than 10%, and most preferably by less than 5%, relative to the shortest distance of the axis of rotation to the center of the working edge.The term "shank" is understood to mean, in particular, a component designed to connect two assemblies, especially a drive mount for the tool and the cutting element, preferably in one piece. Preferably, the first side of the shank is arranged parallel to a principal plane of extension of the tool shank. A "principal plane of extension" of a component is understood to mean, in particular, a plane that is parallel to a largest side face of the smallest imaginary cuboid that just completely encloses the component and, in particular, passes through the center of the cuboid.
[0010] Preferably, the depth stop element has a curved, in particular polygonal, profile. Preferably, the radius of the curved profile of the depth stop element is formed at least substantially by a distance of the depth stop element from the axis of rotation of the drive of the hand-held power tool. The radius of the curved profile is particularly less than 500 mm, preferably at least substantially 300 mm, and more preferably at least 150 mm. The radius of the curved profile of the depth stop element can be variable along the depth stop element, in particular along an oscillating movement of the tool. Preferably, the depth stop element forms at least substantially a circular segment. In this context, "at least substantially" is understood to mean, in particular, that more than 50%, preferably more than 80%, of the length of the depth stop element forms a circular segment.It is particularly preferred that the center of the circular segment lies at least substantially on the axis of rotation of the tool's oscillation motion. In this context, "at least substantially" means, in particular, that the position of the center of the circular segment and the position of the axis of rotation deviate from each other by less than 20%, preferably by less than 10%, and especially by less than 5%.
[0011] In particular, the depth stop element is integrally connected to the support element, preferably formed by the support element itself. Preferably, the additional depth stop element is arranged on a side of the support element opposite the depth stop element. It is conceivable that the additional depth stop element is configured to support a force acting on the support element along the depth direction at an edge of the shank and / or at an edge of a component bounding the shank, for example, the drive housing. Preferably, at least the support element is arranged completely within the shank area in the assembled state. A "shank area" is understood to mean, in particular, any point that touches the shank of the tool.Preferably, a component is arranged entirely within the shaft area if the component contacts only the shaft area and / or is arranged exclusively within a shaft extension in the depth direction. It is conceivable that the component is supported against or abuts a component adjacent to the shaft area. Furthermore, it is conceivable that the component arranged within the shaft area, particularly in a free-floating manner, projects beyond the shaft area. At least one closure is also proposed, for example, a clip closure, which enables tool-free assembly and / or disassembly of the support element. Advantageously, high user-friendliness and / or ease of operation can be provided, since assembly / disassembly is performed without tools. Preferably, the clip closure has at least one locking element.It is also conceivable that the clip fastener has two locking elements. For example, at least one locking element could be designed as a locking hook. Preferably, the locking element is designed to be opened and closed manually. Alternatively or additionally, the fastener could have an actuating element, for example a push button, which could be designed to at least open the locking element.
[0012] Furthermore, it is proposed that the support element has at least one, preferably two, positive locking elements which at least partially follow the outer contour of the shank and which are configured to at least substantially prevent movement of the depth stop in a depth direction of the tool. Advantageously, high precision can be achieved because, in particular, the at least one positive locking element at least partially follows the outer contour of the shank, thereby achieving high positioning accuracy. Preferably, the at least one positive locking element is integrally connected to the support element. Preferably, the at least one positive locking element is formed by the support element. Preferably, the shank has an engagement. Preferably, the positive locking element is designed at least substantially as a negative of the engagement of the shank.Preferably, the at least one positive locking element is configured to limit movement of the support element at least in one direction of the cut edge. Preferably, the at least one positive locking element is at least substantially the same length as the longitudinal extent of the shaft region in the depth direction. Preferably, the at least one positive locking element is arranged in the main plane of extension of the shaft next to the shaft.
[0013] Furthermore, it is proposed that the at least one additional depth stop element is formed by the at least one positive locking element. Advantageous design properties can be achieved, since the at least one positive locking element, in particular, provides exceptionally high stability. Preferably, the at least one positive locking element is configured to prevent movement of the support element at least in a direction opposite to the cutting edge. Preferably, the depth stop element and / or the additional depth stop element is configured to support the force on a surface of the shaft that is arranged perpendicular to the depth direction.
[0014] It is further proposed that the support element and the at least one positive locking element form a shank receiving area, which is designed to at least partially receive the shank of the tool. Advantageous design features can be achieved, since the shank receiving area, in particular, provides exceptionally high stability of the connection between the stop element and the shank. Advantageously, high precision can be achieved, since the shank receiving area, in particular, at least partially receives the shank, thereby ensuring high positioning accuracy. Preferably, the shank receiving area is designed to position at least the support element. Preferably, the shank receiving area allows for mounting the stop element according to the Poka-Yoke principle. Preferably, the support element has two positive locking elements.Preferably, a further side of the shaft opposite the first side is, in the assembled state, at least substantially flush with the at least one positive locking element. Preferably, the two positive locking elements have a minimum distance between them that corresponds to the width of the shaft section.
[0015] Furthermore, at least one cover element is proposed, which is arranged on at least one other side of the shaft and which is connected to the support element at least via a hinge, in particular integrally, wherein the support element and the cover element completely enclose the shaft of the tool in an assembled state. Advantageous design properties can be provided, since, in particular, the cover element completely encloses the shaft of the tool, thereby providing particularly high stability and positioning accuracy. Preferably, the hinge is designed as a movable, preferably elastically deformable, plastic component. Preferably, a principal extension plane of the cover element is arranged at least substantially parallel to the principal extension plane of the support element and / or the shaft.It is conceivable that the cover element, in a mounted position, has at least one compensating element on a surface facing the shaft. This compensating element could be made of deformable rubber or foam. The compensating element could be designed to compensate for a gap, particularly one resulting from the manufacturing process, in order to prevent relative movement of the support element to the shaft. Furthermore, the compensating element could be designed to allow mounting on tools with different shaft thicknesses.
[0016] Additionally, at least one locking element is proposed, which is formed integrally with the support element and / or the cover element. Advantageously, this provides a high level of user-friendliness, as the locking element, in particular, can be easily assembled and disassembled. Preferably, the locking element is designed to fix the support element to the shaft, especially by means of a positive locking connection. It is conceivable that the support element and / or the cover element has at least one corresponding locking element designed to create a positive locking connection with the locking element.The term "one-piece" shall be understood to mean, in particular, at least materially bonded, for example by a welding process, an adhesive bonding process, an injection molding process and / or another process that appears sensible to the person skilled in the art, and / or advantageously formed in one piece, such as by production from a single casting and / or by production in a single or multi-component injection molding process and advantageously from a single blank.
[0017] Furthermore, it is proposed that the locking mechanism be formed by at least one locking hook arranged on the support element, which engages behind the shaft in a mounted state. Advantageous features regarding design and user-friendliness can be provided, since the locking hooks, in particular, enable a particularly lightweight and easy-to-handle stop device. Preferably, the support element has at least two, more preferably at least four, and advantageously a plurality of locking hooks. Preferably, the locking hooks are configured to prevent movement of the support element perpendicular to its main plane of extension.
[0018] It is further proposed that the depth stop element be formed by the support element and / or the cover element. Advantageously, a low level of complexity can be achieved, since the support element and / or the cover element are specifically formed. Preferably, the depth stop element is formed as a surface of the support element and / or the cover element, which is arranged at least substantially perpendicular to the main extension plane of the shaft and / or to the depth direction.
[0019] Furthermore, it is proposed that at least the supporting element and / or a cover element be designed as a lightweight component. This can provide advantageous properties with regard to design and user-friendliness, as the lightweight component, in particular, enables easy operation. A cost-effective design can also be achieved, as material can be saved, especially in the lightweight component. A "lightweight component" is understood to be, in particular, a component that, as a result of a design feature, exhibits a weight reduction due to, for example, a reduction in wall thickness, a reduction in stress concentration, or a comparable design measure.
[0020] It is further proposed that at least the supporting element and / or at least one cover element be made of a lightweight material, such as a plastic. This offers advantageous manufacturing properties, as plastics, in particular, are easy to produce. A cost-effective design can be achieved, as plastic components, in particular, can be manufactured inexpensively. Preferably, the lightweight material is a plastic or a plastic composite. Alternatively, it is also conceivable that the lightweight material is a metallic material, such as titanium or a comparable lightweight material.Furthermore, it is proposed that the additional depth stop element be formed by at least one plug-in element, preferably at least two plug-in elements, and particularly preferably at least six plug-in elements, which are configured to be arranged in corresponding recesses in the shank of the tool. Advantageous design features can be provided, since, in particular, the at least two recesses enable particularly high positioning accuracy and / or force transmission. Preferably, the at least one plug-in element is designed as a bolt, a pin, or at least as a material accumulation. Preferably, the at least one plug-in element, and in particular a longitudinal direction of the plug-in elements, extends at least substantially perpendicular to the depth direction and / or one of the principal extension planes of the support element.Preferably, the at least one plug-in element, in its assembled state, extends at least partially, and preferably at least substantially, into the corresponding recess in the tool shank. Preferably, two plug-in elements arranged side by side have the same minimum distance between them. Preferably, the plug-in elements are arranged along the depth direction. Preferably, the plug-in elements are arranged in at least two rows, which are arranged at least substantially parallel to each other. Preferably, an arrangement of the plug-in elements corresponds at least substantially to a hole pattern of the recesses in the tool shank. Preferably, the plug-in elements are arranged on the support element. Alternatively, it is conceivable that at least one of the plug-in elements, and preferably all plug-in elements, are arranged on the cover element.Preferably, the shaft of the tool has at least as many recesses as there are plug-in elements arranged on the stop element.
[0021] Additionally, a tool, in particular a saw blade, for a hand-held power tool is proposed, which is designed to accommodate the stop device. Advantageously, high positioning accuracy can be provided, since the tool and the stop device are specifically matched. The stop device according to the invention is not intended to be limited to the application and embodiment described above. In particular, the stop device according to the invention can have a different number of individual elements, components, and units than specified herein to achieve the functionality described herein. Furthermore, values within the specified limits of this disclosure are also considered disclosed and freely usable.
[0022] drawing
[0023] Further advantages will become apparent from the following description of the drawings. The drawings illustrate two exemplary embodiments of the invention. The drawings, the description, and the claims contain numerous features in combination. A person skilled in the art will expediently consider the features individually and combine them into meaningful further combinations.
[0024] They show:
[0025] Fig. 1 shows a hand-held power tool with one tool,
[0026] Fig. 2 shows a schematic representation of a mounted stop device,
[0027] Fig. 3 shows a schematic sectional view of the mounted stop device,
[0028] Fig. 4 shows another schematic sectional view of the mounted stop device and
[0029] Fig. 5 shows an alternative embodiment of an alternative stop device.
[0030] Description of the exemplary implementations
[0031] Figure 1 shows a hand-held power tool 10a. The hand-held power tool
[0032] 10a is designed as a multi-functional tool. The multi-functional tool is designed as an oscillating multi-functional tool. It is also conceivable that the hand-held power tool 10a is designed as a comparable machine tool. The hand-held power tool 10a has an oscillatingly driven cutting or machining tool 12a. The tool 12a is designed as a saw blade. The tool 12a has a cutting edge 14a. The cutting edge 14a is designed to separate a workpiece. The cutting edge 14a has a plurality of cutting teeth. The cutting teeth are arranged along the cutting edge 14a. The cutting teeth form the cutting edge 14a. Alternatively, the tool 12a is designed as a cutting blade. In this case, the cutting edge 14a could be designed as a continuous cutting blade. The cutting edge 14a is integrally connected to a shank 16a of the tool 12a.The shank 16a connects the cutting edge 14a to a drive receptacle 44a of the tool 12a. The drive receptacle 44a is formed by the shank 16a. The drive receptacle 44a is formed as a recess in the shank 16a. The drive receptacle 44a is completely enclosed by the shank 16a. Alternatively, the drive receptacle 44a could be formed as a receiving element that is integrally connected to the shank 16a.
[0033] Figure 2 shows a stop device. The stop device is designed as a mechanical depth stop. The stop device is suitable for mounting on the shank 16a of the tool 12a. The stop device is designed to be universally mounted on a variety of different tools 12a. The stop device has a support element 18a. The support element 18a can be arranged on a first side of the shank 16a. The stop device has a depth stop element 20a. The depth stop element 20a and the cutting edge 14a run in a parallel curve to each other. The depth stop element 20a is formed by the support element 18a. The depth stop element 20a has a curvature. The curvature runs along an oscillating movement of the tool 12a. The curvature of the depth stop element 20a has a radius of 300 mm.The curvature could have a radius of more than 300 mm or less than 300 mm. The radius is defined as the shortest distance from the depth stop element 20a to an axis of rotation of the tool 12a. The depth stop element 20a is formed as a surface perpendicular to a principal extension plane of the support element 18a. The depth stop element 20a has a stop height 46a of more than 1 mm. The stop height 46a is arranged perpendicular to a principal extension plane. The depth stop element 20a is configured to limit a cutting depth 22a of the cutting edge 14a of the tool 12a into a workpiece. The support element 18a has a further depth stop element 24a. The further depth stop element 24a is configured to support a force acting on the depth stop element 20a against the shank 16a.The depth stop element 20a and the further depth stop element 24a can be arranged completely within a shaft area of the tool 12a.
[0034] The stop device has a cover element 36a. The cover element 36a is arranged on another side of the shaft 16a. This other side is located on the side of the shaft 16a opposite the support element 18a. The cover element 36a is integrally connected to the support element 18a via a hinge 38a. The hinge 38a is elastically deformable. The hinge 38a is designed to move the cover element 36a and the support element 18a relative to each other for assembly / disassembly. The hinge 38a and the support element 18a are formed in one piece. In an assembled state, the support element 18a and the cover element 36a completely enclose the shaft 16a of the tool 12a. The depth stop element 20a is formed by the support element 18a.Alternatively or additionally, the depth stop element 20a is formed by the cover element 36a.
[0035] The stop device has a locking device 26a. The locking device 26a is designed as a clip-type locking device. The locking device 26a is designed to allow tool-free assembly of the support element 18a and / or the cover element 36a. The clip-type locking device has a locking element 40a. The locking element 40a is formed integrally with the support element 18a. Alternatively, the locking element 40a is formed integrally with the cover element 36a. The locking element 40a has a latching hook 42a. The latching hook 42a is designed to be opened and closed manually. The latching hook 42a engages behind the cover element 36a or the support element 18a in a closed and / or assembled state.
[0036] The stop device is designed as a lightweight component. The support element 18a is designed as a lightweight component. The cover element 36a is designed as a lightweight component. The stop device is made of a lightweight material. The support element 18a is made of the lightweight material. The cover element 36a is made of the lightweight material. The lightweight material is a plastic.
[0037] Figure 3 shows a schematic sectional view of the stop device. The support element 18a has two positive locking elements 28a. The two positive locking elements 28a are arranged on two opposite side edges of the shank 16a. The positive locking elements 28a are configured to follow an outer shank contour 30a. The outer shank contour 30a has an engagement. The positive locking elements 28a are designed as a negative of the engagement. The positive locking elements 28a are configured to prevent movement of the depth stop element 20a in a depth direction 32a of the tool 12a. The further depth stop element 24a is formed by the two positive locking elements 28a. The support element 18a and the positive locking elements 28a form a shank receiving area 34a. The shank receiving area 34a is configured to receive the shank 16a of the tool 12a. It is conceivable that the shaft 16a has an edge 48a.Edge 48a could be designed as a workpiece butt, a workpiece rebate, or a comparable workpiece protrusion. The additional depth stop element 24a is arranged without contact with edge 48a. Alternatively, it is conceivable that the additional depth stop element 24a supports the force at edge 48a.
[0038] The stop device is available for different cutting depths 22a, see Fig. 2. The cutting depth 22a of the tool 12a is defined by the position of the depth stop element 20a, see Fig. 2. The position of the depth stop element 20a is determined by the longitudinal extent of the support element 18a and / or the cover element 36a. Alternatively, the depth stop element 20a could be adjustable. For example, the depth stop element 20a could be movably arranged on the support element 18a and / or the cover element 36a.
[0039] Figure 4 shows another schematic sectional view of the stop device. The additional depth stop element 24a is formed by 10 plug-in elements 56a. The additional depth stop element 24a is designed to be arranged in corresponding recesses 50a in the shank 16a of the tool 16a. The additional depth stop element 24a can alternatively or additionally also be formed by the positive locking elements 28a. The positive locking elements 28a can also be shortened. The plug-in elements 56a are designed as bolts or pins. The plug-in elements 56a could be designed as a comparable accumulation of material. The plug-in elements 56a are arranged on the support element 18a. Alternatively, it is conceivable that the plug-in elements 56a are arranged on the cover element 36a. The plug-in elements 56a are formed by the support element 18a or the cover element 36a.
[0040] The plug-in elements 56a are arranged in two rows 52a along the depth direction 32a. The two rows 52a run parallel to each other. The two rows 52a contain the same number of plug-in elements 56a. Along the depth direction 32a, two adjacent plug-in elements 56a have the same shortest distance 54a between them. It is also conceivable that the plug-in elements 56a are arranged at a multiple of the shortest distance 54a between two plug-in elements 56a. For example, the distance 54a between two plug-in elements 56a could be 5 mm, 10 mm, and 20 mm. The manufacturing tolerance of the distances 54a of the plug-in elements 56a should be less than ±10% of the distance 54a. An arrangement of the plug-in elements 56a corresponds to a hole pattern of the recesses in the shank 16a of the tool 12a. The stop device has the same number of plug-in elements 56a as there are recesses in the shaft 16a of the tool 12a.However, it is conceivable that the stop device has fewer plug-in elements 56a than there are recesses in the shaft 16a of the tool 12a. In an assembled state, the plug-in elements 56a extend completely into the corresponding recesses in the shaft 16a of the tool 12a. Figure 5 shows a further embodiment of the invention. The following descriptions and drawings are essentially limited to the differences between the embodiments, whereby, with regard to identically designated components, in particular components with the same reference numerals, reference may also be made to the drawings and / or the description of the other embodiments, especially Figures 1 to 4. To distinguish the embodiments, the letter 'a' is appended to the reference numerals of the embodiment in Figures 1 to 4.In the embodiments shown in Figure 5, the letter a is replaced by the letter b.
[0041] Figure 5 shows an alternative embodiment of the stop device. The stop device has an alternative support element 18b. The alternative support element 18b has an alternative closure 26b. The alternative closure 26b is formed by six locking hooks 42b arranged on the alternative support element 18b. The locking hooks 42b are integrally formed with the positive locking elements 28b of the alternative support element 18b. The closure 26b could also be formed by more or fewer than six locking hooks 42b. The locking hooks 42b are arranged on two opposite sides of the alternative support element 18b. The support element 18b and the positive locking elements 28b form a shaft receiving area 34b. The shaft receiving area 34b is partially formed / limited by the closure 26b.Alternatively, the closure 26b could also be formed by two locking hooks 42b, which are arranged on two opposite sides of the shank receiving area 34b. The two locking hooks 42b would extend over a longitudinal extent in the depth direction 32b of the support element 18b. The locking hooks 42b are designed to engage a shank 16b of a tool 12b from a hand-held power tool 10b in an assembled state, cf. Fig. 1.
Claims
Claims 1. Stop device, in particular a mechanical depth stop device, for an oscillatingly driven cutting or machining tool (12a; 12b) of a hand-held power tool (10a; 10b), which has at least one cutting edge (14a; 14b) arranged on a shank (16a; 16b) of the tool (12a; 12b), with at least one support element (18a; 18b) which is attached at least to a first side of the shank (16a; 16b) can be arranged, and with at least one curved depth stop element (20a; 20b) which, in a mounted state, runs at least substantially in a parallel curve to the cutting edge (14a; 14b), and which is configured to limit a cutting depth (22a; 22b) of the cutting edge (14a; 14b) of the tool (12a; 12b) into a workpiece, characterized in that the support element (18a; 18b) has at least one further depth stop element (24a; 24b) which is configured to support a force acting on the depth stop element (20a; 20b), in particular on the shank (16a; 16b), wherein at least the depth stop element (20a; 20b) and the further depth stop element (24a; 24b) are completely within a shank area of the tool. (12a; 12b) can be ordered.
2. Stop device according to claim 1, characterized by at least one closure (26a; 26b), which is designed, for example, as a clip closure, and which enables tool-free assembly of the support element (18a; 18b).
3. Stop device according to claim 1 or 2, characterized in that the support element (18a; 18b) has at least one, preferably two, positive locking element (28a; 28b) which at least partially follows a shaft outer contour (30a; 30b) and which is configured to prevent movement of the depth stop element (20a; 20b) in a depth direction (32a; 32b) of the tool (12a; 12b) at least substantially to prevent.
4. Stop device according to claim 3, characterized in that the at least one further depth stop element (24a; 24b) is formed by the at least one positive locking element (28a; 28b).
5. Stop device according to one of the preceding claims, characterized in that the support element (18a; 18b) and the at least one positive locking element (28a; 28b) form a shaft receiving area (34a; 34b) which is configured to at least partially receive the shaft (16a; 16b) of the tool (12a; 12b).
6. Stop device according to one of the preceding claims, characterized by at least one cover element (36a; 36b) which is arranged on at least one further side of the shaft (16a; 16b) and which is connected to the support element (18a; 18b) at least via a hinge (38a; 38b), in particular integrally, wherein the support element (18a; 18b) and the cover element (36a; 36b), in a mounted state, completely enclose the shaft (16a; 16b) of the tool (12a; 12b).
7. Stop device according to one of the preceding claims, characterized by at least one locking element (40a; 40b) which is formed integrally with the support element (18a; 18b) and / or the cover element (36a; 36b).
8. Stop device according to claims 1 to 5, characterized in that the closure (26b) is formed by at least one locking hook (42b) arranged on the support element (18b), which engages the shaft (16b) in a mounted state.
9. Stop device according to one of the preceding claims, characterized in that the depth stop element (20a; 20b) is formed by the support element (18a; 18b) and / or the cover element (36a; 36b).
10. Stop device according to one of the preceding claims, characterized in that at least the support element (18a; 18b) and / or a cover element (36a; 36b) is designed as a lightweight component.
11. Stop device according to one of the preceding claims, characterized in that at least the support element (18a; 18b) and / or at least one cover element (36a; 36b) is made of a lightweight material, such as a plastic.
12. Stop device according to one of the preceding claims, characterized in that the further depth stop element (24a; 24b) is formed by at least one plug-in element (56a; 56b), preferably at least two plug-in elements (56a; 56b), which are configured to fit into corresponding recesses (50a; 50b) in the shaft (16a; 16b) of the tool (12a; 12b).
13. Tool, in particular saw blade, for a hand-held power tool (10a; 10b), which is designed to accommodate the stop device according to one of the preceding claims.
Citation Information
Patent Citations
Manually operated machine tool has rotating, particularly oscillatorily driven, round or angular disk-shaped tool and device which is arranged axially adjacent to work piece
DE102008001234A1
Device for restricting the penetration depth of a cutting tool
DE3833735A1