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Shear blade for a cutting device

A technology for shearing knives and utensils, applied in the field of shearing knives for cutting utensils, can solve problems such as material breakage and reduce durability, and achieve the effect of improving cutting effect and durability

Active Publication Date: 2019-05-21
LUKAS HYDRAULIK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Here, the tips of the shearing knives each act as a point of rotation, ie this results in an increased risk of fracture of the cutting edge of the knife insert during the cutting process.
In addition, the force is transmitted either through the cutting of the workpiece to the pressure on the knife insert or to the plug-in connection or wedge-like to the form-fitting surface below the knife insert, so that both sides Stress peaks and thus material fracture and thus reduced durability occur in this case

Method used

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  • Shear blade for a cutting device
  • Shear blade for a cutting device
  • Shear blade for a cutting device

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0037] figure 1 Reference numeral 1 in represents a portable cutting tool for cutting and cutting body parts and doors. The cutting tool 1 has a housing 3 and a hydraulic cylinder 4 on which two tool halves are mounted, each of which includes a shearing knife 2 with a knife body 9 and a The tip 9a on the body. The shearing blades 2 are arranged on a common axis of rotation 6 so that the shearing blades 2 can pivot relative to each other. Furthermore, a carrying handle 7 and a handle 8 for carrying the cutting tool 1 are arranged in the region of the housing 3 and / or the hydraulic cylinder 4 . Furthermore, in the region of the handle 8 is a manually operable control valve 5 which enables the user to manually operate the cutting tool (cut, open and dry run).

[0038] exist Figure 5 The shearing blade 2 according to the invention of the cutting instrument 1 is shown in detail in . Preferably, the cutter body 9 can be produced as a forged part or milled from a semi-finished ...

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PUM

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Abstract

The invention relates to a shear blade (2) for a portable, in particular hydraulic cutting device, preferably a rescue device having a blade body (9), wherein the blade body (9) has an assembly region(18) and a cutting region (15), a cutting (16) in the cutting region (15), a contact surface (13), located on one side of the cutting edge (16), for an additional shear blade, and an outer surface (14), located on the other side of the cutting edge (16), which is provided in order to act on the object to be cut, wherein the cutting region (15) has a recess (22) for receiving a cutting insert (21), wherein the recess (22) is designed such that the cutting insert (21) can be inserted into the recess (22) at an acute angle delta to the contact surface (13) of the shear blade (2).

Description

technical field [0001] The invention relates to a shearing knife according to the preamble of claim 1 and a portable, in particular hydraulic, cutting tool, preferably a rescue tool, according to the preamble of claim 16 . Background technique [0002] Hydraulic work implements intended for portable use are generally used by fire brigades for rescue use. Hydraulic power tools of this type are, for example, cutting tools which are mainly used for cutting body parts and vehicle doors. Such cutting tools usually have a hydraulic control unit with a hydraulic pump, which can be located either directly on the cutting tool or in the emergency vehicle. Furthermore, the cutting tool comprises two tool halves that can be pivoted relative to one another, each of the tool halves comprising a shear for separating or cutting a workpiece to be cut, for example a column of a PKW bodywork. In this case, the shearing blades have contact surfaces that are oriented toward one another and gen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23D35/00A62B3/00B23D17/00B23D29/00B23D31/00
CPCA62B3/005B23D17/00B23D29/00B23D35/001B23D35/002B23D29/005
Inventor H·蒂施勒T·霍内C·绍尔比尔
Owner LUKAS HYDRAULIK