The guide bar arrangement (1) comprises yarn guide (2) which is moved back and forward by a drive device in a direction of displacement (5). The drive device has a drive (6) and a resetting unit (7). The restoring unit has an elastomeric portion that generates a spring force in the pulling direction by a stretching material. The elastomeric portion is formed as cable, round cord or ribbon. The cable or tape is made of strands of elastomeric material, which are assembled transverse to the direction of pull. The rope or belt is formed as textile composite.

Position bar assembly for a knitwear machine

A hand-held power tool has a tool holder (2) for holding a tool (4) along a working axis (12). A hammer mechanism (6) has a hammer (15) that is moved periodically at a blow rate along the working axis (12) between a turning point in the proximity of the tool and a turning point remote from the tool. A drive control (19) of the hammer mechanism (6) controls the blow rate to a set point. A mass damper (28) has an oscillating mass (30) that moves along the working axis (12) about a resting position (32) and one or more springs (29) that drive the oscillating mass (30) back into the resting position (32). A first sensor is used to determine a phase of the motion of the hammer (15). A sensor (38) is used to determine a first phase (18) of a compression point (26) of the hammer mechanism (6). Another sensor (39) is used to determine a second phase (33) of a reversal point (34) in the proximity of the tool, of the hammer mechanism (28). A damping controller (37) adapts the set point such that a phase difference between the first phase (18) and the second phase (33) is smaller than a threshold value.

Hand-held power tool and control method therefor

The invention relates to a method for surveying drill holes and to a drilling arrangement and to a borehole survey assembly. The method comprises a first providing step for providing a drill tool (1) comprising at least one drill rod (2) and a drill bit assembly (3), and a second providing step for providing a borehole survey tool (4) comprising sensor means (5) for measuring a borehole (6). In the method a drill tool (1) comprising a central flushing channel (8) for conducting flushing fluid to the drill bit assembly (3) is used, and the borehole survey tool (4) is arranged in the arranging step in the central flushing channel (8) so that flushing fluid can flow in the central flushing channel (8) past the borehole survey tool (4).

Method for surveying drill holes, drilling arrangement, and borehole survey assembly

In one embodiment, a reciprocating tool (100) includes a first variable volume fluid chamber (170), a second variable volume fluid chamber (172) in fluid communication with the first variable volume fluid chamber (170), a plunger (142) configured to modify the volume of the first variable volume fluid chamber by movement generally in a first direction along a plunge axis such that a portion of a fluid moves from one of the first and second variable volume fluid chamber to the other of the first and second variable volume fluid chamber, a counterweight (176) configured such that the movement of the portion of the fluid results in a movement of the counterweight (176) generally in a second direction along the plunge axis, the second direction opposite to the first direction, and a chuck assembly (150) supported by the plunger (142).

Reciprocating Tool with Fluid Driven Counterweight

The invention relates to a device (1), in particular a cutting tool, to a machine having such a device (1) and to a method. The device comprises a cutting element (3) for mechanically machining a workpiece (2), wherein the cutting element (3) is connected to an oscillating device (5) which sets the cutting element (3) in oscillation, the oscillation of the cutting element having a frequency that is lower than the frequency of ultrasound. The oscillating device (5) has a compensating mass (6) that oscillates in the opposite direction to the cutting element (3).

Device, machine and method for mechanically machining a workpiece

The invention relates to a vibration reduction and/or compensation device, particularly for a handheld machine tool, the device includes at least one movably supported balance body (102) and a driving mechanism (104) acting on the balance body (102, and the at least one balance body (102) can be driven by the driving mechanism. The invention proposes that at least one added mass (140), which can move relative to the balance body (102), preferably move relatively under limitation, is arranged on and/or in the balance body (102).

Vibration reduction and/or compensation device, particularly for handheld machine tool and application in handheld machine tool

The device (100) has a drive mechanism (104) e.g. swash plate drive (106), acting on a movably mounted adjusting body (102). The adjusting body is driven by the drive mechanism. An auxiliary mass (140) is moved relative to the adjusting body and provided at or in the adjusting body. The auxiliary mass is arranged within the adjusting body. The auxiliary mass is guided at or to the adjusting body. The auxiliary mass is formed from mass bodies. The auxiliary mass exhibits degree of freedom of movement relative to the adjusting body. An independent claim is also included for a handheld machine tool comprising a drive device.

Device for reduction and/or compensation of vibrations, in particular for a handheld machine tool and for use in handheld machine tools

Popular Tasks used by Researchers

How can I help with your research?

Get more enhanced response by uploading the PDFs you want me to reference.

No relevant PDFs in your library

SciSpace is the AI research assistant for academics. Run systematic literature reviews on 280M+ papers, and write papers with cited sources. Trusted by 1M+ students, PhDs & researchers.

SciSpace | AI for Research

We encountered an error while loading the panel. Please try refreshing the page.

Something went wrong

Analyze PDFs

Code & Manuscripts

Funding & Grants

Literature & Patents

Medical & Clinical Data

Systematic Review

Visualize & Present

Web & Data

Build a Google Scholar-like website for your research.

Build a website

Create charts and images for your research

Create a Chart

Write a paper for submission to a journal

Draft a manuscript

Patent Search

Design eye-catching scientific posters in minutes.

Scientific Poster Generation

Systematic Literature Review

Anyone with the link can view this chat. You can switch it back to private anytime.

One task is running at the moment. Your messages will be shown right after.

Drag and drop or click here to browse

Loved by <highlight>1 million+</highlight> researchers

Extract a list of specific topics and their sources from unstructured text

Topics

Compare and analyze relevant papers that matches with your search

Papers

Get insights from PDFs and bookmarked papers from your library

My library

Recent searches

Try searching for:

Catch AI-generated content in scholarly and non-scholarly content

{ai} Detector

Ai Writer

Get PDF Summaries, highlighted text explanations 

Chat with PDF

Effortlessly create in-text citations and bibliographies in APA and 2,500 other formats

Citation generator

Get explanations, summaries, and answers on academic papers

Ease up your research workflow with {scispace}'s cohort of exciting AI tools

Elevate your academic writing skills and convey your ideas the way you want

Paraphraser

Explore our range of reading and writing tools

Your file is being prepared and should be ready in a few minutes. If it's a large file, it might take a bit longer. You can close this window, and we'll email you the file when it's done.

You have reached a maximum limit of <strong>{limit}</strong> columns in the table. Remove at least <strong>1</strong> column to add or create another one.

Elisabeth Michl

Author Tools

Chat about Author

Papers

Vibration reduction and/or compensation device, particularly for handheld machine tool and application in handheld machine tool

Device for reduction and/or compensation of vibrations, in particular for a handheld machine tool and for use in handheld machine tools