Device for marking cutting angles on rod-shaped and profiled workpieces

Abstract

(Main claim) Device for marking a cutting angle on a rod-shaped, rectangular, polygonal or profiled workpiece, with a holding device that picks up or holds the workpiece, and a guide surface connected to the holding device, wherein the straightening surface can be arranged at a variable angle relative to a reference direction of the workpiece.

Description

Technical field

[0001] The invention relates to a device for marking cutting angles on workpieces, in particular on rod-shaped, rectangular, polygonal or profiled workpieces made of metal, plastic or similar materials.

[0002] It belongs to the field of hand-held scribing and marking tools for metal, pipe and profile construction. State of the art

[0003] From DE 202015001245 U1, a marking device for pipes is known in which a fixed template with a 90° angle serves for marking. However, this device is only designed for round workpieces and is not angle-adjustable.

[0004] DE 102014009628 A1 describes a device for scribing workpieces with a support surface and a movable stop, which, however, is intended for flat workpieces and does not have its own holding device for the workpiece.

[0005] From US 8,281,457 B1, a pipe marking device with a circumferential template is also known, with which a circular marking can be produced without the possibility of a variable angle adjustment.

[0006] None of these known solutions allows for the simultaneous fixing of the workpiece and the variable adjustment of any cutting angle for different cross-sectional shapes. Problem underlying the invention

[0007] The task is to provide a device with which workpieces of different cross-sectional shapes can be precisely marked at a variably adjustable angle, without the need for multiple templates or elaborate holding devices. Solution to the task

[0008] This problem is solved by a device having the features of claim 1.

[0009] The device includes a holding device that receives or holds the workpiece, and a system or guide element connected to the holding device, where this element can be arranged at a variable angle relative to a reference direction of the workpiece.

[0010] The support or guide element can be coupled to the holding device via a movable connecting element, such as a rotary, swivel or sliding connection.

[0011] The holding device can consist of clamping, tensioning, magnetic or support elements that hold the workpiece in a stable position.

[0012] Optionally, the device may include a scale, detent or stop mechanism for reproducible angle adjustment. Commercial applicability

[0013] The device is suitable for commercial use, particularly in the field of of metal construction, pipeline construction, mechanical engineering, plant engineering as well as in locksmith shops and workshops for preparing for cutting or welding work. Beneficial effects

[0014] The invention enables: • its use with different workpiece shapes (round, square, angular), • the adjustable marking of any cutting angle, • precise marking through stable relative position, • and simplified handling thanks to the combined holding and application function.

[0015] Compared to known devices, the effort required to produce precise cutouts is significantly reduced. Example of implementation

[0016] In a preferred embodiment, the device has a base plate with clamping or clamping elements into which a workpiece is inserted.

[0017] A movable connecting element links the base plate to a guide or support element, which is positioned at a desired angle to the workpiece direction. The guide element is either flat or angled and serves as a guide edge for a marking tool. The angle can be precisely set using a scale or detents.

[0018] The device can be made of metal or plastic and can be manufactured in different sizes for workshops or assembly applications. QUOTES INCLUDED IN THE DESCRIPTION

[0000] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature

[0000] DE 202015001245 U1

[0003] DE 102014009628 A1

[0004] US 8,281,457 B1

[0005]

Claims

[1] (Main claim) Device for marking a cutting angle on a rod-shaped, rectangular, polygonal or profiled workpiece, with a holding device that picks up or holds the workpiece, and a guide surface connected to the holding device, wherein the straightening surface can be arranged at a variable angle relative to a reference direction of the workpiece. [2] Device according to claim 1, characterized by , that the alignment surface is coupled to the holding device via a movable connecting element, the connecting element allows for rotational, pivoting, sliding or combined movement. [3] Device according to any one of the preceding claims, characterized by that the holding device comprises one or more clamping, tensioning, magnetic, screwing or support elements, which holds the workpiece in a fixed position. [4] Device according to any one of the preceding claims, characterized by , that the guide surface consists of a plate-shaped, flat or angled component, which is designed as a mounting surface for a marking tool. [5] Device according to any one of the preceding claims, characterized by that the connecting element includes an adjustment or guiding device, which allows a defined change in the angle between the guide surface and the holding device. [6] Device according to any one of the preceding claims, characterized by that a scale, detent, stop device or guide rail is arranged on the alignment surface, which enables a reproducible setting of the angle or a linear guidance of a marking tool.