Device for manually introducing holes and / or rivets into a workpiece

Abstract

The invention relates to a device (10) for manually introducing holes and / or rivets into a workpiece, said device having a body (20) which has a working region (12) into which a workpiece which is to be provided with holes and / or rivets can be introduced. In the working region (12), a tool plate (21) is provided, into which a tool (60) can be introduced, and a tool receptacle (31) is also provided, which is arranged on a slide (30) and into which a counter tool (61) can be introduced. The slide (30) is movable towards the tool plate (21) and away therefrom, the workpiece for machining being arrangeable on the working region (12) between the tool plate (21) and the tool receptacle (31). The invention comprises a handle (40) which is pivotable about a first pivot axis (41) in order to move the slide (30). The slide (30) is arranged away from the tool plate (21) in a release position (30.1) when the handle (40) is in its first position (40.1), and, as the handle (40) is pivoted into its second position (40.2), is moved towards the tool plate (21) into its working position (30.2), in which the tool (60) and the counter tool (61) are operatively connected to one another. Lastly, a stop (11) is provided on the body (20), which, in the second position (40.2) of the handle (40), cooperates with a counter stop (42) on the handle (40) in order to delimit the second second position (40.2) of the handle (40) and thus the movement of the slide (30) towards the tool plate (21) into its working position (30.2). The invention now proposes that the stop (11) and thus the working position (30.2) of the slide (30) are adjustable.

Description

[0001] Device for manually inserting holes and / or rivets into a workpiece

[0002] The invention relates to a device for manually drilling holes and / or rivets into a workpiece. The workpieces used here can primarily be flat workpieces such as textiles of any kind, leather, plastic films, paper and cardboard, and similar materials, but also workpieces of greater thickness such as foam or very bulky materials. The selection of materials for the workpieces is not limited.

[0003] Especially in the areas of handicrafts, the production of clothing and accessories, and upcycling, there is a desire to create holes and / or various types of rivets in a workpiece, whether for fastening purposes, such as classic belt holes and snap fasteners, or for decorative purposes, such as decorative rivets and other objects. There are no limits to the shape of the holes and rivets. "Rivet" here refers to any object that is attached to the object by a rivet or flange connection, regardless of whether it has additional functions or decorations and whether it is arranged in one or more layers of the workpiece.

[0004] Hole punching and riveting pliers are well known for creating holes and rivets in clothing, textiles, leather, and other materials. These usually consist of several male dies for different sizes and a female die. The workpiece is placed between the male and female dies, and the workpiece is machined by manually pressing the two pliers legs together. Such manual hole punching or riveting pliers are described in documents DE 295 16 991 U1 or DE 44 22 103 C2, for example. Operating them requires a relatively high level of force from the operator, which they must also apply by closing their hand. However, this is not easily accomplished by every operator, especially with thicker or heavier materials or larger holes or rivets.

[0005] DE 20 2013 100 917 U1 describes a bending machine designed as a manually operated tabletop device. This bending machine is used for bending or punching special types of paper and offers options for adjusting the distances between the papers to be punched in order to place the holes at a desired location. A disadvantage here is that, depending on the type of paper being processed, a considerable amount of force is still required by the operator to complete the process. Furthermore, riveting of workpieces is not provided.

[0006] DE 10 2011 015 473 A1 also describes a manual paper hole punch designed as a tabletop device. Since the forces required to punch paper vary greatly and thicker stacks in particular are difficult to punch with conventional hole punches, the handle is designed as a toggle lever, which offers better force transmission, so that even thicker stacks of paper can be easily punched manually by one operator. Riveting or a similar process is not required for this device either. Furthermore, the distance between the tools or between the punching dies and the holes cannot be adjusted; instead, when the handle is operated, the punching dies are always guided into the holes.

[0007] The object of the invention is therefore to improve a device for drilling holes and / or rivets into a workpiece so that it can be operated by an operator with the least possible expenditure of force. It should also be possible to adjust the distance between the tools in order to process rivets of very different sizes and heights. This object is achieved by the characterizing features of claim 1, to which the following particular importance is attached. The device has a body which has a work area with a tool plate and a pivoting handle. Furthermore, a movable carriage with a tool holder is provided. A tool can be arranged on the tool plate while a counter tool can be inserted into the tool holder. A workpiece to be processed, for example made of textile or leather or an object made of another material, can be inserted into the work area.By operating the handle, the carriage can be moved toward the tool plate until the tool and counter-tool are operatively connected, and the workpiece is machined. Depending on the tool and counter-tool selected, holes or rivets, or similar objects that can be inserted into the workpiece by riveting, crimping, or flanging, can be machined.

[0008] Since the workpieces, the tool, and the counter-tool can all have different dimensions, a stop is provided on the body, which can interact with a counter-stop on the handle to limit the movement of the handle and thus the slide. The invention proposes an adjustable stop to limit the working position of the slide differently for different applications. This allows the working position of the slide to be precisely adjusted for each specific application.

[0009] In a particularly preferred embodiment, the stop is continuously adjustable manually. This makes it particularly easy for an operator to precisely adjust the working position of the slide without the need for additional tools.

[0010] Continuously adjustable stop is particularly easy to achieve if it is provided with a stop screw. This can then be located in a bushing, such as a threaded bushing. This allows for simple and continuous adjustment of the stop, regardless of the body material. The threaded bushing can also be inserted into the body in the conventional manner or attached to it. The stop screw can have a knurling or similar feature on its outside or be designed as a wing screw to allow easy manual adjustment without the use of tools.

[0011] It is also preferred to provide the first pivot axis on a joint element. The handle can then be pivoted about this first pivot axis around the joint element. Furthermore, the joint element is designed in the manner of a toggle lever and has a second pivot axis with which the joint element can be pivoted about the body. This enables better power transmission from the pivoting movement of the handle. To enable an orderly linear movement of the slide, a third pivot axis can be provided, which pivotably connects the slide to the handle. This allows the pivoting movement of the handle to be converted into a linear movement of the slide.The interaction of the three pivoting axes enables particularly good transmission of the force exerted on the handle and the resulting pivoting movement of the handle to a linear movement of the slide, which enables safe machining of the workpiece, even when processing larger rivets.

[0012] Different tools and / or countertools can be arranged in the tool holder on the carriage and / or on the tool plate. This makes it possible to process a wide variety of rivets or to create holes of different sizes and / or shapes in a workpiece. Only one fixture is required for a wide variety of applications.

[0013] In order to ensure safe machining of the workpiece, the device can be equipped with a fastening device which can be used to attach it to a surface such as a table top. This makes it possible to securely fasten the device to a workstation and to specifically position one or more holes and / or rivets on a workpiece at a desired location. The device can then not be accidentally displaced, even if considerable force is applied. The fastening device can, for example, comprise a roughly U-shaped clamp which, when mounted, grips around an edge of the plate. One leg of the clamp can be secured to the device, in particular to a holder on the body, while the other leg of the clamp can be secured to the side of the plate facing away from the device. The U-shaped clamp thus grips the plate and the device can be secured to the plate with the clamp interposed.The other leg can preferably be secured to the panel by means of a detachable connection, for example by a clamp connection. For this purpose, a fastening means engages through or around the other leg of the clamp, which acts against a counter-plate that is directly or indirectly adjacent to the panel and is supported on the panel. In addition, a protective cover can be provided, which can be arranged between the panel and the counter-plate and protects the panel from damage, such as marks that could occur due to the counter-plate being clamped. Using such a fastening device, the device can be attached to a conventional panel such as a table top, a shelf, or similar, without damaging the panel. After use, the device can then be removed from the panel again.This makes it possible to securely attach the device almost anywhere and is therefore particularly suitable for use in the hobby sector.

[0014] In order to precisely position the holes or rivets in the workpiece, one or more measuring scales can be provided on the device. This makes it possible to measure exact distances from the edge of the workpiece and to insert the hole or rivet at that point. The position of the tool in relation to the workpiece edge can be read off on the measuring scale(s). One or more of the measuring scales can also be arranged on the device so that they can be moved and / or removably fixed. It is also possible to provide one or more projections on a measuring scale against which an edge of the workpiece can be brought into contact in order to more easily insert the hole or rivet at a precisely measured location in the workpiece. The number and arrangement of the measuring scales can vary.

[0015] For better haptics, the handle can consist of two components: a hard first component that provides the handle with the necessary strength and rigidity and can withstand even greater forces, and a softer second component that fits comfortably in the hand and offers pleasant haptic properties. Thus, the handle ensures good force transmission while remaining comfortable for the operator to use.

[0016] The device can have one or more feet to ensure it stands securely on a surface. Three feet are particularly effective. The feet can have anti-slip properties to ensure the device remains stable even when force is applied to the handle.

[0017] The slide can be guided in a sleeve within the body. This ensures good guidance of the slide within the body, regardless of the body material.

[0018] Further advantages and embodiments will become apparent from the following description, the dependent claims, and the drawings. The subject matter of the invention is illustrated in an exemplary embodiment in the drawings. They show:

[0019] Fig. 1: a device according to the invention in side view,

[0020] Fig. 2: the device from Fig. 1 in perspective from the front with half of the handle broken away,

[0021] Fig. 3: the device from Fig. 1 and 2 in exploded view, Fig. 4: the device from Fig. 1 to 3 in partial

[0022] Exploded view with fastening device,

[0023] Fig. 5: the joint element with handle in the first position,

[0024] Fig. 6: the joint element with handle in the pivoting movement,

[0025] Fig. 7: the joint element with handle in the second position,

[0026] Fig. 8: the device from Fig. 1 to 7 with the stop in minimum position,

[0027] Fig. 9: the device from Fig. 8 with the stop in maximum

[0028] Position,

[0029] Fig. 10: the tool holder and the tool plate in detail.

[0030] Fig. 1 shows a device 10 according to the invention with a body 20 and a handle 30. Furthermore, a carriage 30 can be seen, which is arranged above the tool plate 21 or the tool 60. The carriage 30 is here in its working position 30.2, while the handle 40 is in its second position 40.2. The working area 12 can be seen between the carriage 30 and the tool 60. The carriage 30 is guided in a sleeve 32 through the body 20 and can move linearly towards and away from the tool 60. To effect a movement of the carriage 30, the handle 40 is moved up or down.

[0031] In this exemplary embodiment, the handle 40 itself consists of two different materials: a first component 44, which is rigid and strong and provides the handle 40 with the necessary strength, and a second component 45, which is softer and has a pleasant feel for the operator. This makes it possible to provide a handle 40 that is comfortable to operate while still being rigid and strong enough to reliably transmit the applied forces.

[0032] Also visible is a portion of a measuring scale 22, which can be used to read the position of the workpiece or to correctly position the workpiece when using the device 10. A projection 24 is also provided on the measuring scale 22 shown, which can be used to support the workpiece. It is also possible to provide additional measuring scales 22 to position the workpiece even more precisely.

[0033] Finally, it can be seen that feet 23 are incorporated into the bottom of the body 20. These ensure that the body 20 stands securely and can have anti-slip properties so that the device 10 remains securely in place even when force is exerted on the handle 40, allowing for good and safe machining of the workpiece.

[0034] The illustration in Fig. 2 shows the structure of the handle 40 and its interaction with the body 20 and the slide 30 in more detail. It can be seen that a joint element 43 is provided, which is designed in the manner of a toggle lever. A total of three pivot axes are provided in this exemplary embodiment: a first pivot axis 41 between the handle 40 and the joint element 43, a second pivot axis 25 between the pivot element 43 and the body 20, and a third pivot axis 33 between the slide 30 and the handle 40.The interaction of these three pivot axes 41, 25, 33 not only transfers the pivoting movement of the handle 40 to the linear movement of the slide 30, but also ensures that the force exerted when pivoting the handle 40 is effectively translated and transmitted to the slide, so that with a relatively low manually applied force, even larger forces can be exerted on the tool 60 and the counter-tool 61, and thus even more difficult or stiffer piercing or riveting processes can be performed. The design and arrangement of the axes thus enables a wide variety of riveting and piercing processes that cannot be performed with conventional devices, even by physically less strong operators.

[0035] Furthermore, one can see the stop 11, which is arranged on the body 20 and interacts with the counter-stop 42 on the handle 40 in the illustrated second position 40.2 of the handle 40 and thus determines not only the exact position of the second position 40.2 of the handle 40 but also the working position 30.2 of the slide 30.

[0036] Finally, it can be seen that three measuring scales 22 are arranged directly or indirectly on the body, which can be used to precisely determine the position of a workpiece. Some of the measuring scales 22 are arranged on the body 20 in a movable and releasably lockable manner, in order to also fix the projection 24 in a precise position and facilitate the alignment of the workpiece. The large number of measuring scales 22 greatly facilitates the alignment and positioning of a workpiece to be machined.

[0037] The exact structure of the device 10 can be seen in the exploded view in Fig. 3. This shows the structure of the handle 40, which consists of two parts: the first component 44 and one part: the second component 45. The structure of the slide 30, which is arranged in the sleeve 32 in the body 20, and the counter-tool 61 are also visible here. Also visible are the joint element 43 with the first pivot axis 41 and the second pivot axis 25, as well as the third pivot axis 33, which engages the slide 30 and connects it to the handle 40.

[0038] The stop 11 is provided on a stop screw 13. This, in turn, is guided in a bushing 14, which is designed as a threaded bushing with an internal thread. This bushing 14 can be inserted into the body 20, regardless of the material of the body 20 itself. The design as a stop screw 13 and bushing 14 enables continuous manual adjustment of the stop 11 in a simple manner. The stop screw 13 has a knurling on the outside of its head to simplify manual adjustment.

[0039] It can also be seen that the tool 60 is inserted into or applied to the tool plate 21. The tool 60 can be replaced by an operator to suit the respective application.

[0040] One of the three measuring scales 22 shown can be completely removed from the body 20. A projection 24 is provided on this measuring scale 22, which in turn encompasses another measuring scale 22. The movable measuring scale can be removably attached to the body 20 to adjust the distance of the projection 24 from the carriage 30. A third measuring scale 22 is permanently attached to the body 20. The plurality of measuring scales 22 allows a workpiece to be machined to be precisely aligned with the tool 60 and counter-tool 61.

[0041] The structure of a possible fastening device 50 can be seen in more detail in Fig. 4. This device comprises an approximately U-shaped clamp 51 which, when fastened, can engage around an edge of a panel such as a table top, a shelf, or the like. One leg 52 of the U-shaped clamp 51 can be fastened to the device 10 itself, for example to the body 20, while the other leg 53 engages under the panel and can be secured to the side of the panel facing away from the device 10. A fastening means 54 is also provided for fastening, in this case a screw which passes through the other leg 53 of the U-shaped clamp 51. A handle which can be easily operated manually serves as the screw head for this fastening means 54.A counterplate 55 is also provided on the side of the fastening means 54 facing away from the handle. This counterplate rests against the plate when fastened, thus securing the device 10 on the plate against displacement. Not shown here is a protective cover, which can also be arranged between the counterplate 55 and the plate to protect the plate from damage such as scratches or marks caused by the counterplate 55.

[0042] Figs. 5 to 7 show the movement of the handle 40, the carriage 30 and the joint element 43. In Fig. 5, the handle 40 is in its first position 40.1 and the carriage 30 is in its release position 30.1. The joint element 43 is arranged almost vertically and the first pivot axis 41 and the second pivot axis 25 are approximately perpendicular to one another. The third pivot axis 33 is arranged at a distance from the other two. If the handle 40 is now pivoted, the three pivot axes 41, 25 and 33 move as shown in Fig. 6. Due to the arrangement of the pivot axes and the guidance of the carriage 30 by the sleeve 32, the pivoting movement of the handle 40 is converted into a linear movement of the carriage 30. The design of the joint element 43 as a toggle lever ensures a favorable power transmission of the pivoting movement of the handle 40, so that less force must be exerted by the operator than with direct power transmission. Fig.Finally, Figure 7 shows the handle 40 in its second position 40.2 and the slide 30 in its working position 30.2. The counter-tool 61 located in the slide 30 has been moved maximally in the direction of the tool 60, and a workpiece arranged in the working area 12 has been machined by the tool 60 and the counter-tool 61. Due to the interaction of stop 12 and counter-stop 42, the handle 40 cannot be pivoted further downward.

[0043] The function of the stop 11 and the counter-stop 42 can also be seen in Fig. 8 and 9. The stop 11 is provided on the stop screw 13, which is located in the bushing 14. The bushing 14 has an internal thread for the external thread of the stop screw 13. In Fig. 8, the stop screw 13 is screwed as far as it can into the bushing 14. The second position 40.2 of the handle 40 is pivoted downwards as far as it can go, and the working position 30.2 of the slide 30 is also such that the counter-tool 61 is moved as far as it can go towards the tool 60. In Fig. 9, in contrast, the stop screw 13 is screwed as far as it can go out of the bushing 14. The handle 40 is also in its second position 40.2, but this position is pivoted significantly less than in Fig. 8, since the counter-stop 42 comes into contact with the stop 11 much earlier. In this position, the carriage 30 is also in its working position 30.2, but the counter tool 61 is at its maximum distance from the tool 60. Between the two positions of the stop screw 13 shown in Figs. 8 and 9, all possible modifications are conceivable, depending on how far the stop screw 13 is screwed into the bushing 14.

[0044] Furthermore, Figs. 8 and 9 show the receptacle 26 into which one leg 52 of the U-shaped clamp 51 can be inserted in order to attach the fastening device 50 to the device 10. If no fastening device 50 is provided, the receptacle 26 remains empty.

[0045] Finally, Fig. 10 shows the tool plate 21 onto which the tool 60 has been mounted, as well as the tool holder 31 with the counter-tool 61 inserted therein. Tool 60 and counter-tool 61 are aligned with one another. If, for example, a rivet is to be processed on a workpiece, the rivet or the two parts of the rivet are placed on the tool 60 and / or counter-tool 61, and the workpiece to be processed is arranged between them. The carriage 30 is then moved into its working position 30.2 by actuating the handle 40, and the rivet is arranged on the workpiece. Different tools and counter-tools are used for different rivets and holes, and these can be arranged accordingly on the device.

[0046] Finally, it should be noted that the embodiments presented here are merely exemplary implementations of the invention. This is not limited to them. Further modifications and limitations are also possible. Reference symbols:

[0047] device

[0048] stop

[0049] Workspace

[0050] Stop screw

[0051] socket

[0052] Corpus

[0053] tool plate

[0054] measuring scale

[0055] Foot

[0056] projection

[0057] Second swivel axis

[0058] Recording

[0059] Sleds

[0060] Release level of 30

[0061] Working situation of 30

[0062] Tool holder

[0063] sleeve

[0064] Third swivel axis

[0065] Handle

[0066] First position of 40

[0067] Second position of 40

[0068] First swivel axis

[0069] Counter-attack

[0070] Joint element

[0071] First component of 40

[0072] Second component of 40

[0073] Fastening device

[0074] U-shaped bracket

[0075] A leg of 51

[0076] Other leg of 51 Fastener Counter plate Tool Counter tool

Claims

Claims: Device (10) for manually inserting holes and / or rivets into a workpiece with a body (20) having a working area (12) into which a workpiece can be inserted for the purpose of having holes and / or rivets inserted, wherein a tool plate (21) is provided on the working area (12) into which a tool (60) can be inserted, and wherein a tool holder (31) is further provided which is arranged on a slide (30) and into which a counter tool (61) can be inserted, wherein the slide (30) is movable towards and away from the tool plate (21), and wherein the workpiece can be positioned for machining on the working area (12) between the tool plate (21) and the tool holder (31), wherein a handle (40) is provided which is pivotable about a first pivot axis (41) to move the slide (30), wherein the slide (30) moves away from the tool plate (21). in a release situation (30th)1) is arranged when the handle (40) is in its first position (40.1) and is moved into its working position (30.2) towards the tool plate (21) when pivoting the handle (40) into its second position (40.2), in which the tool (60) and the counter tool (61) are in operative connection with each other, and wherein a stop (11) is provided on the body (20) which, in the second position (40.2) of the handle (40), interacts with a counter stop (42) on the handle (40) to limit the second position (40.2) of the handle (40) and thus the movement of the slide (30) towards the tool plate (21) into its working position (30.2), characterized in that the stop (11) and thus the working position (30.2) of the slide (30) are adjustable.

2. Device (10) according to claim 1, characterized in that the stop (11) is continuously adjustable manually.

3. Device (10) according to claim 2, characterized in that the stop (11) is located on a stop screw (12) which is arranged in a bushing (13).

4. Device (10) according to one of claims 1 to 3, characterized in that the first pivot axis (41) of the handle (40) is arranged on a joint element (43), wherein the joint element (43) is designed in the manner of a toggle lever and has a second pivot axis (25) about which the joint element (43) can be pivoted about the body (20).

5. Device (10) according to claim 4, characterized in that the slide (30) is arranged on the handle (40) so as to be pivotable about a third pivot axis (33).

6. Device (10) according to one of claims 1 to 5, characterized in that various tools (60) and / or counter-tools (61) can be inserted into the tool plate (21) and / or into the tool holder (31) on the slide (30).

7. Device (10) according to one of claims 1 to 6, characterized in that a fastening device (50) is provided to fix the device (10) on a plate such as a table top.

8. Device (10) according to claim 7, characterized in that the fastening device (50) comprises an approximately U-shaped clamp (51) which, in its assembled state, encompasses an edge of the plate and one leg (52) of which can be fixed to the device (10), in particular in a receptacle (26) on the body (20), while the other leg (53) can be fixed to the side of the plate facing away from the device (10).

9. Device (10) according to claim 8, characterized in that the other leg (53) can be fixed to the plate by means of a detachable connection, wherein the other leg (53) is penetrated or encompassed by a fastening means (54) which acts against a counter plate (55) which is directly or indirectly abutting the plate and which is supported on the plate.

10. Device (10) according to claim 9, characterized in that a protective cover is provided which is arranged between the counter plate (55) and the plate.

11. Device (10) according to one of claims 1 to 10, characterized in that at least one measuring scale (22) is provided on which the position of the workpiece in relation to the tool (60) and the counter tool (61) can be read.

12. Device (10) according to claim 11, characterized in that at least one measuring scale (22) is arranged on the device (10) in a slidable and / or detachable manner.

13. Device (10) according to one of claims 11 or 12, characterized in that the measuring scale (22) has at least one projection (24) for contact with the workpiece.

14. Device (10) according to one of claims 1 to 13, characterized in that the handle (40) consists of at least two components, namely a first component (44) which is hard and ensures good power transmission and a second component (45) which is softer and has pleasant haptic properties for an operator.

15. Device (10) according to one of claims 1 to 14, characterized in that the body (20) has one or more feet (23) which have anti-slip properties. Device (10) according to one of claims 1 to 15, characterized in that the slide (30) is guided in a sleeve (32) in the body (20).

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