Clip installation tool
US-9833888-B2 · Dec 5, 2017 · US
Installation method for an expansion anchor and impact screwdriver for installing an expansion anchor
US9233458B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9233458-B2 |
| Application number | US-201213405817-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 27, 2012 |
| Priority date | Mar 4, 2011 |
| Publication date | Jan 12, 2016 |
| Grant date | Jan 12, 2016 |
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- Title
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Abstract
Official abstract text for this publication.
An installation method for an expansion anchor is carried out by repeatedly exerting rotary-percussive strikes onto the shank ( 2 ) of the expansion anchor ( 1 ) by an impact screwdriver. The repeat rate (N target ) of the rotary-percussive strikes is selected as a function of the tightening torque prescribed for expanding the expansion sleeve ( 3 ) of the expansion anchor ( 1 ). The impact screwdriver stops generating rotary-percussive strikes when the detected mean rotational speed (d) of the shank falls below a threshold value (D).
First claim
Opening claim text (preview).
What is claimed is: 1. An installation method for an expansion anchor carried out by repeatedly exerting rotary-percussive strikes onto a shank of the expansion anchor by an impact screwdriver, the method comprising: selecting a repeat rate of the rotary-percussive strikes as a function of a tightening torque prescribed for expanding an expansion sleeve of the expansion anchor; and stopping the impact screwdriver from generating the rotary-percussive strikes when a detected mean rotational speed of the shank falls below a threshold value, wherein, for a first time period, the impact screwdriver exerts the rotary-percussive strikes onto the shank at a maximum possible repeat rate for the impact screwdriver and, after the first time period, switches over to the selected repeat rate. 2. The installation method as recited in claim 1 wherein the impact screwdriver selects the repeat rate in response to an input indicating a type of expansion anchor or the tightening torque. 3. The installation method as recited in claim 1 wherein the impact screwdriver detects a duration of the installation method of the expansion anchor and emits a warning signal when the duration exceeds a threshold value. 4. The installation method as recited in claim 1 wherein a recording device of the impact screwdriver records one or more of the following parameters during generation of the rotary-percussive strikes: identification of the expansion anchor, a number of rotary-percussive strikes exerted onto the expansion anchor, a duration of the rotary-percussive strikes exerted onto the expansion anchor, a termination of the installation procedure by the user, and cases in which the mean rotational speed of the shank falls below the threshold value.
Assignees
Inventors
Classifications
with means for imparting impact to screwdriver blade or nut socket · CPC title
- B25B31/00Primary
Hand tools for applying fasteners (nailing or stapling tools B25C) · CPC title
for impact wrenches or screwdrivers · CPC title
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Frequently asked questions
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- What does patent US9233458B2 cover?
- An installation method for an expansion anchor is carried out by repeatedly exerting rotary-percussive strikes onto the shank ( 2 ) of the expansion anchor ( 1 ) by an impact screwdriver. The repeat rate (N target ) of the rotary-percussive strikes is selected as a function of the tightening torque prescribed for expanding the expansion sleeve ( 3 ) of the expansion anchor ( 1 ). The impact scr…
- Who is the assignee on this patent?
- Schmidt Peer, Appl Joerg, Khandozhko Serhey, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification B25B31/00. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Jan 12 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).