Holding device for holding a tool device

Abstract

The invention relates to a holding device for holding a tool device (13), having an in particular elastic engagement unit (15) for engagement in the tool device (13). It is proposed that for holding the tool device (13), the engagement unit (15) can be connected to the tool device (13) in such a manner that the engagement unit (15) can be inserted into the tool device (13) along an insertion axis (EA) and can be rotated about the insertion axis (EA), in particular with reversibly elastic deformation of the engagement unit (15).

Description

[0001] Description

[0002] The invention relates to a holding device according to the preamble of claim 1.

[0003] State of the art

[0004] JP2000197544 A2 discloses a holding device that is fundamentally similar.

[0005] Disclosure of the invention

[0006] The invention is based on the object of improving a holding device with simple constructive measures.

[0007] The object is achieved with a holding device for holding a tool device, with an engagement unit, in particular an elastic one, for engaging in the tool device.

[0008] It is proposed that the engagement unit for holding the tool device can be connected to the tool device in such a way that the engagement unit can be inserted into the tool device along an insertion axis and, in particular with reversibly elastic deformation of the engagement unit, can be rotated about the insertion axis.

[0009] The engagement unit can be designed to be elastic. The engagement unit can be formed, in particular entirely, from an elastic material, which, due to a change in shape, contributes to an effect according to the invention. The engagement unit can have a structural element, such as a spring element of any type or arrangement, which contributes to an effect according to the invention.

[0010] Preferably, the engagement unit can be connected to the tool device in an inserted state by inserting the engagement unit into the tool device along an insertion axis. A first non-positive connection can be provided between the engagement unit and the tool device.

[0011] Preferably, the engagement unit can be connected to the tool device in a holding state by rotating the engagement unit about the insertion axis relative to the tool device. A second force-locking connection and / or a first form-locking connection can be provided between the engagement unit and the tool device. The force-locking and / or form-locking connection can be achieved by means of a reversible elastic deformation of the engagement unit. The elastic deformation can be understood as a preload, in particular by a springback of the elastic deformation, of the engagement unit relative to the tool device. The elastic deformation should be reversible in order to be able to establish a repeatable holding state.It is understood that plastic deformations of the engagement unit may also occur, but these are relatively negligible or should be disregarded in the following.

[0012] By means of the present invention, a tool device can be held and released particularly easily and reliably using the holding device. The repeatability of the connection and release of the holding device relative to the tool device allows the holding device to be reused. This saves resources.

[0013] The holding device should hold the tool device without the aid of any tool, such as a bolt or any other type of holding device. In particular, the holding device should be capable of being moved from an inserted state to a held state and vice versa without the aid of any tool.

[0014] It may be expedient for the engagement unit to be non-positively connected to the tool device in a held state. It may be expedient for the engagement unit to be positively connected to the tool device in a held state when viewed along the insertion axis. In particular, in an inserted state, the engagement unit can be analogous to a key-keyhole in relation to the tool device. Depending on the design of this connection, a non-positive connection can already be present in the inserted state. When changing from an inserted state to a held state, the engagement unit can be deformed, in particular elastically, perpendicular to the insertion axis, in particular due to a cross-section of the tool device that is different from a circular cross-section, as a result of which the engagement unit is held in the tool device in a non-positively locked manner.To improve the connection, the accessory device can include a form-locking element in which the engagement unit can be positively mounted. This allows for functional separation to be provided in a particularly simple manner.

[0015] It may be expedient for the engagement unit to have a corner element that is movably mounted, in particular elastically, transversely, in particular perpendicularly, to the insertion axis. The corner element can be designed as a substantially rounded corner. The corner element can have a flat corner surface. The corner element can have a chamfer element in the circumferential direction around the insertion axis. The chamfer element can be designed as a curved surface. The chamfer element can delimit the corner surface in the circumferential direction around the insertion axis. This can enable a particularly simple transition of the engagement unit into a holding state.

[0016] It may be expedient for the corner element to have an elevation extending transversely, in particular perpendicularly, to the insertion axis. The elevation can be designed as a form-fitting elevation. The elevation can be provided to engage in the tool device, in particular a recess of the tool device. The elevation can be provided to hold the tool device in a held state in a force-fitting and / or form-fitting manner on the holding device. The elevation can be arranged on the flat corner surface. The elevation can be arranged at a distance from the chamfer element in the circumferential direction around the insertion axis. The elevation can limit a maximum extension of the engagement unit perpendicular to the engagement axis.

[0017] It may be expedient for the holding device to have a center wall element for holding the corner element. The center wall element can extend along and transversely, in particular perpendicularly, to the insertion axis. The center wall element can be arranged at a distance from the corner element. The center wall element has a first end, viewed transversely, in particular perpendicularly, to the insertion axis, and a second end facing away from the first end. The first end and the second end limit the extent of the center wall element. This allows the center wall element to be held particularly reliably.

[0018] It may be expedient for the corner element to be connected to a first end of the center wall element, viewed in the circumferential direction around the insertion axis, and / or to a second end facing away from the first end. The corner element can be connected to the center wall element on both sides in the circumferential direction. The corner element, together with the center wall element, can form a recess extending along the insertion axis. The recess can form an escape space for the corner element, which accommodates the corner element in the event of deflection or elastic deformation.

[0019] It may be expedient for the engagement unit to have an end element for a force-locking connection of the tool device in a held state. The end element can delimit the central wall element perpendicular to the insertion axis. The end element and the wall element can be formed integrally. The end element can be delimited by a limiting circle that delimits or encloses the engagement unit around the insertion axis. The end element can be spaced apart from or set back from a limiting circle that delimits or encloses the engagement unit around the insertion axis. The end element can be designed to be stiffer or less flexible than the corner element. The first end and / or the second end can form the end element and / or be formed integrally with it.The term “one-piece” should be understood in particular as meaning at least materially connected, for example by a welding process, an adhesive process, an injection-molding process and / or another process that appears appropriate to the person skilled in the art, and / or advantageously formed in one piece, such as by production from a casting and / or by production in a single-component or multi-component injection-molding process and advantageously from a single blank.

[0020] It may be expedient for the engagement unit to have a connecting element for connecting the center wall element to the corner element. The connecting element can be formed integrally with the corner element. The connecting element can delimit the corner element in the circumferential direction around the insertion axis. The connecting element can connect the corner element to the end element in the circumferential direction around the insertion axis. The connecting element can keep the corner element spaced from the wall element. The corner element can be connected to the center wall element by means of a connecting element. The connecting element can be provided to support the corner element. The connecting element can be plate-shaped. The connecting element can be designed as a bending plate. The connecting element can extend along the insertion axis corresponding to an overall extent of the corner element. The connecting element can be flat.The connecting element can be offset or set back from a boundary circle that defines the engagement unit around the insertion axis. A plane that defines the connecting element and / or runs parallel to the connecting element can intersect the boundary circle, in particular at two intersection points.

[0021] It may be expedient for the retaining device to have a boundary circle defining the corner element around the insertion axis and a boundary circle defining the end element around the insertion axis. The boundary circle of the corner element may be larger than the boundary circle of the end element. Viewed sectionally along the insertion axis, the boundary circle of the corner element may correspond to the boundary circle of the end element. Both boundary circles may be concentric with each other.

[0022] It may be expedient for the engagement unit to have a substantially rectangular, in particular regular, cross-sectional shape, particularly a cuboid. The corners can be formed essentially by the corner element and the end element.

[0023] It may be expedient for the holding device to have a suspension unit for suspending the holding device. The suspension unit can be arranged on a side of the holding device facing away from the tool device. The suspension unit can extend along the insertion axis and transversely, in particular perpendicularly, to the insertion axis. The suspension unit can be essentially flat. The suspension unit can be plate-shaped. The suspension unit can have a suspension element, in particular a suspension plate. The suspension unit can be formed integrally with the engagement unit. The suspension unit can have a reinforcing element which is arranged on the engagement unit. The reinforcing element can be formed integrally with the suspension element. The reinforcing element can be formed as a reinforcing plate. The reinforcing element can be formed as a reinforcing elevation orReinforcing thickening can be formed. The reinforcing element extends parallel to the suspension element. The suspension unit can have a receiving opening for receiving the suspension unit. The receiving opening can be designed as a Euro-hole recess. Such recesses are known to those skilled in the art.

[0024] A further aspect of the invention relates to a tool device, in particular a tool socket, with a receiving unit for receiving the holding device, in particular the engagement unit. The receiving unit can be hollow. The receiving unit can be designed to receive the engagement unit. The receiving unit can have a receiving recess. The receiving recess can have an inner contour which essentially corresponds to an outer contour of the engagement unit. The receiving recess can be designed like a blind hole. The receiving recess can be designed as a receiving socket. The receiving unit can have a receiving wall which delimits the receiving recess, in particular in a plane by 360°. The receiving wall can have an outer contour which, in a section, is essentially circularly curved around a longitudinal axis, in particular an insertion axis.The receiving wall can have an inner contour which, in a section, has a substantially, in particular regular, quadrangular, in particular cuboid-shaped, basic shape.

[0025] It may be expedient for the receiving unit, in particular the receiving wall, to have a receiving recess for receiving the corner element, in particular the corner elevation of the corner element, in a holding state. The receiving recess can be designed as a bore, in particular as a through-bore. The receiving recess can extend perpendicular to a longitudinal axis, in particular an insertion axis.

[0026] A further aspect of the invention relates to a system comprising a tool device and a holding device that holds the tool device.

[0027] Short description of the drawings

[0028] Further advantages will become apparent from the following description of the drawings. Further developments of the invention may be illustrated in the drawings. The drawings, the description, and the claims contain numerous features in combination. Those skilled in the art will also conveniently consider the features individually and combine them into useful further combinations. Here:

[0029] Fig. 1 is a side view of the holding device and the tool device in a holding state, Fig. 2 is a perspective view of the tool device,

[0030] Fig. 3 and 4 each show a side view of the holding device,

[0031] Fig. 5 and 6 each show a section of the side views of Fig. 3 and 4,

[0032] Fig. 7 is a further side view of a section of the holding device and

[0033] Fig. 8 and 9 a schematic view of a section through the holding device in the tool device in an inserted state (Fig. 8) and in a holding state (Fig. 9).

[0034] In the following figures, identical components are provided with the same reference numerals.

[0035] Fig. 1 shows a holding device 11 for holding a tool device 13. The holding device 11 is designed as a packaging device. The holding device 11 serves to accommodate the tool device 13. For sales purposes, the holding device 11 is intended to be able to be suspended from a sales shelf (hook) and to hold the tool device 13 hanging or in a hanging state (not shown) on a side of the holding device 11 facing away from the hook. In the present case, the holding device 11 is depicted in a held state (Fig. 9), in which the tool device 13 is held on the holding device 11 in a force-fitting and / or form-fitting manner.

[0036] The holding device 11 has an elastic engagement unit 15 for engagement with the tool device 13. To hold the tool device 13, the engagement unit 15 can be connected to the tool device 13 in such a way that the engagement unit 15 can be inserted into the tool device 13 along an insertion axis EA and can be rotated about the insertion axis EA with reversibly elastic deformation of the engagement unit 15. The engagement unit 15 is formed entirely from an elastic material, which, due to a change in shape, contributes to an effect according to the invention.

[0037] The engagement unit 15 can be connected to the tool device 13 in an inserted state (Fig. 8) by inserting the engagement unit 15 into the tool device 13 along an insertion axis EA. A first force-locking connection can be provided between the engagement unit 15 and the tool device 13.

[0038] The engagement unit 15 can be connected to the tool device 13 in a holding state (Fig. 9) by rotating the engagement unit 15 about the insertion axis EA relative to the tool device 13. A force-locking connection and a form-locking connection can be provided between the engagement unit 15 and the tool device 13. The force-locking and / or form-locking connection can be achieved by means of a reversibly elastic deformation of the engagement unit 15.

[0039] To accommodate the tool device 13 by means of the engagement unit 15, the tool device 13 has a receiving unit 21 designed as a tool nut. The receiving unit 21 is essentially hollow and is designed to receive the engagement unit 15. The receiving unit 21 has a receiving recess 23 with an inner contour 25 which essentially corresponds to an outer contour 27 of the engagement unit 15. The receiving recess 23 is designed like a blind hole. The receiving recess 23 forms a receiving nut. The receiving unit 21 has a receiving wall 29 which delimits the receiving recess 23 in a plane by 360°. The receiving wall 29 can have an outer contour 31 which, in a section, is essentially circularly curved around the insertion axis EA. The receiving wall 29 has an inner contour 25 which, in a section, has a basic shape which is essentially cuboidal.

[0040] The holding device 11 is intended to hold the tool device 13 without the aid of an auxiliary device, such as a bolt or any other type of holding means. In particular, the holding device 11 is intended to be movable from an inserted state (Fig. 8) to a held state (Fig. 9) and vice versa without the aid of an auxiliary device.

[0041] The engagement unit 15 can be non-positively connected to the tool device 13 in a holding state (Fig. 9). In a holding state (Fig. 9), the engagement unit 15 can be positively connected to the tool device 13 when viewed along the insertion axis EA. In an inserted state (Fig. 8), the engagement unit 15 is analogous to a key-keyhole in relation to the tool device 13. Depending on the design of this connection, a non-positive connection can already exist in the inserted state (Fig. 8). When transitioning from an inserted state (Fig. 8) to a holding state (Fig. 9), the engagement unit 15 can be elastically deformed perpendicular to the insertion axis EA due to a cross-section of the tool device 13 that differs from a circular cross-section, whereby the engagement unit 15 is held non-positively in the tool device 13.To improve a connection, the tool device 13 has a form-locking element 33 in which the engagement unit 15 is mounted in a substantially form-locking manner.

[0042] The engagement unit 15 has a corner element 35, which is elastically movably mounted perpendicular to the insertion axis EA. The corner element 35 is designed as a substantially rounded corner. The corner element 35 has a flat corner surface 37. The corner element 35 has a chamfer element 41 designed as a curved surface in the circumferential direction UR around the insertion axis EA. The chamfer element 41 delimits the corner surface 37 in the circumferential direction UR around the insertion axis EA.

[0043] The corner element 35 has a protrusion 39 extending perpendicular to the insertion axis EA, which is designed as a positive-locking protrusion 39. The protrusion 39 is intended to engage in the receiving recess 23 or the receiving unit 21 of the tool device 13. The protrusion 39 is intended to hold the tool device 13 in a held state in a force-fitting and form-fitting manner on the holding device 11. The protrusion 39 is arranged on the flat corner surface 37. The protrusion 39 is arranged at a distance from the chamfer element 41 in the circumferential direction UR around the insertion axis EA and limits a maximum extension of the engagement unit 15 perpendicular to the engagement axis AE.

[0044] The receiving wall 29 of the receiving unit 21 has a receiving recess 57 for receiving the corner elevation 39 of the corner element 35 in a held state. The receiving recess 57 is designed as a through-bore. The receiving recess 57 extends perpendicular to a longitudinal axis of the insertion axis EA. In a held state, the corner element 35 and the corner elevation 39 are arranged in the receiving recess 57 (Fig. 9). In an inserted state, the receiving recess 57 is arranged in the receiving unit 21 or the receiving recess 23 (Fig. 8). When the engagement unit 15 is rotated relative to the tool device 13 in the circumferential direction UR about the insertion axis EA, the corner element 35, including the corner elevation 39, moves from a corner of the receiving unit into the receiving recess 57 of the receiving unit 21.As soon as the corner protrusion 39 of the corner element 35 is arranged in the receiving recess 57, a force-locking and / or positive connection is formed along the insertion axis AE, which holds the tool device 13 to the holding device 11. The connection can be released by further rotating the engagement unit 15 relative to the tool device 13 in the circumferential direction UR about the insertion axis EA.

[0045] The holding device 11 has a center wall element 61 for holding the corner element 35. The center wall element 61 extends along and perpendicular to the insertion axis EA. The center wall element 61 is arranged at a distance from the corner element 35. Viewed perpendicular to the insertion axis EA, the center wall element 61 has a first end 63 and a second end 65 facing away from the first end 63. The first end 63 and the second end 65 limit an extension of the center wall element 61.

[0046] The corner element 35 is connected to a first end 63 of the center wall element 61, viewed in the circumferential direction UR around the insertion axis EA, and to a second end 65 of the center wall element 61, facing away from the first end 63. The corner element 35 is connected to the center wall element 61 on both sides in the circumferential direction UR and, together with the center wall element 61, forms a recess 67 extending along the insertion axis EA. The recess 67 forms an escape space for the corner element 35, which accommodates the corner element 35 in the event of a deflection or elastic deformation. In the present case, the engagement unit 15 has two corner elements 35, which are arranged on opposite sides.

[0047] The engagement unit 15 has two end elements 69 for a force-locking connection of the tool device 13 in a held state. The end elements 69 delimit the center wall element 61 perpendicular to the insertion axis EA. The end elements 69 and the center wall element 61 are formed integrally. The end elements 69 are delimited by a delimiting circle 71 that delimits or encloses the engagement unit 15 around the insertion axis EA. The end elements 69 are spaced apart or set back from a delimiting circle 73 that delimits or encloses the corner elevations 39 around the insertion axis EA, perpendicular to the insertion axis EA. The end elements 69 are designed to be stiffer or less flexible than the corner element 35. The first end 63 and the second end 65 each form an end element 69 and are formed integrally therewith.

[0048] The engagement unit 15 has a connecting element 77 for connecting the center wall element 61 to the corner element 35, which is formed integrally with the corner element 35. The connecting element 77 delimits the corner element 35 in the circumferential direction UR around the insertion axis EA. The connecting element 77 connects the corner element 35 in the circumferential direction UR around the insertion axis EA to the end element 69 and holds the corner element 35 spaced from the center wall element 61. The corner element 35 is connected to the center wall element 61 by means of a connecting element 77. The connecting element 77 is provided to support the corner element 35. The connecting element 77 is plate-shaped as a type of bending plate. The connecting element 77 extends along the insertion axis EA corresponding to an overall extension of the corner element 35 viewed along the engagement axis EA. The connecting element 77 is essentially flat and designed as a type

[0049] Connecting wall is formed. The connecting element 77 is spaced apart or set back perpendicularly to the insertion axis EA relative to a limiting circle 71, 73 that defines the engagement unit 15 around the insertion axis EA. A plane that defines the connecting element 77 and / or runs parallel to the connecting element 77 intersects the limiting circle 71, 73 at two intersection points.

[0050] The holding device 11 has a limiting circle 73 that delimits the corner element 35 around the insertion axis EA, and a limiting circle 71 that delimits the end element 69 around the insertion axis EA. The limiting circle 73 of the corner element 35 is larger than the limiting circle 71 of the end element 69. Viewed in sections along the insertion axis EA, the limiting circle 73" of the corner element 35 approximately corresponds to the limiting circle 71 of the end element 69. Both limiting circles 71, 73" are concentric with one another.

[0051] The engagement unit 15 has a substantially cuboidal basic shape in cross-section. The corners can be formed essentially by the corner element 35 and the end element 69.

[0052] The holding device 11 has a suspension unit 81 for suspending the holding device 11. The suspension unit 81 is arranged on a side of the holding device 11 facing away from the tool device 13. The suspension unit 81 extends along the insertion axis EA and perpendicular to the insertion axis EA. The suspension unit 81 is essentially flat. The suspension unit 81 is plate-shaped. The suspension unit 81 has a suspension element 83 designed as a suspension plate. The suspension unit 81 is formed integrally with the engagement unit 15. The suspension unit 81 has a reinforcing element 85, which is arranged on the engagement unit 15 and merges into the center wall element 61 and reinforces it. The reinforcing element 85 is formed integrally with the suspension element 83. The reinforcing element 85 is designed as a reinforcing plate. The reinforcing element 85 is designed as a reinforcing elevation or

[0053] Reinforcing thickening is formed, which extends parallel to the suspension element 83. The suspension unit 81 has a receiving opening 87 for receiving the suspension unit 81, which is designed as a Euro hole recess.

Claims

Claims 1 . Holding device for holding a tool device (13), with an engagement unit (15), in particular an elastic one, for engagement in the tool device (13), characterized in that the engagement unit (15) for holding the tool device (13) can be connected to the tool device (13) in such a way that the engagement unit (15) can be inserted into the tool device (13) along an insertion axis (EA) and can be rotated about the insertion axis (EA), in particular with reversibly elastic deformation of the engagement unit (15).

2. Holding device according to one of the preceding claims, characterized in that the engagement unit (15) can be non-positively connected to the tool device (13) in a holding state.

3. Holding device according to one of the preceding claims, characterized in that the engagement unit (15) can be connected to the tool device (13) in a holding state along the insertion axis (EA) in a form-fitting manner.

4. Holding device according to one of the preceding claims, characterized in that the engagement unit (15) has a corner element (35) for a force-locking and / or form-locking connection of the tool device (13) in a holding state, which corner element is movably mounted transversely, in particular perpendicularly, to the insertion axis (EA), in particular elastically.

5. Holding device according to one of the preceding claims, characterized in that the corner element (35) has an elevation (39) extending transversely, in particular perpendicularly, to the insertion axis (EA).

6. Holding device according to one of the preceding claims, characterized by a central wall element (61) for holding the Corner element (35).

7. Holding device according to one of the preceding claims, characterized in that the corner element (35) is connected to a first end (63) and / or to a second end (65) of the central wall element (61) facing away from the first end (63), viewed in the circumferential direction UR around the insertion axis (EA).

8. Holding device according to one of the preceding claims, characterized in that the engagement unit (15) has an end element (69) for a non-positive connection of the tool device (13) in a holding state.

9. Holding device according to one of the preceding claims, characterized in that the engagement unit (15) has a connecting element (77) for connecting the central wall element (61) to the corner element (35).

10. Holding device according to one of the preceding claims, characterized by a limiting circle (73) delimiting the corner element (35) around the insertion axis (EA) and a limiting circle (71) delimiting the end element (69) around the insertion axis (EA), wherein the limiting circle (73) of the corner element (35) is larger than the limiting circle (71) of the end element (69).

11. Holding device according to one of the preceding claims, characterized in that the engagement unit (15) has a cross-sectionally substantially, in particular regular, quadrangular, in particular cuboidal, basic shape.

12. Holding device according to one of the preceding claims, characterized by a suspension unit (81) for suspending the holding device (11).

13. Tool device, in particular tool nut, with a receiving unit (21) for receiving the holding device (11), in particular the engagement unit (15), according to one of the preceding Claims.

14. Tool device according to claim (13), characterized in that the receiving unit (21), in particular the receiving wall, has a receiving recess (57) for receiving the corner element (35), in particular the corner elevation (39) of the corner element (35), in a holding state.

15. System comprising a tool device (13) according to claim 14 and a holding device (11) for holding the tool device (13) according to one of claims 1-13.

Images