Tightening device and tightening method
US-2015122522-A1 · May 7, 2015 · US
Tightening device
US2015114138A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2015114138-A1 |
| Application number | US-201414522877-A |
| Country | US |
| Kind code | A1 |
| Filing date | Oct 24, 2014 |
| Priority date | Oct 31, 2013 |
| Publication date | Apr 30, 2015 |
| Grant date | — |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
A tightening device is able to check that a fastening member has been fastened to a desired set torque or greater after being tightened, without loosening the fastening member. The tightening device is provided with a mode switching switch for switching between a first tightening process of adjusting the output of a motor after measured torque that is measured by a torque detector has reached a preset first control start torque, such that the measured torque reaches a preset first set torque in a phased manner through repeated increases and decreases in torque, and blocking power supply to the motor when the measured torque reaches the first set torque, and a second tightening process of driving the motor at an initial output that is less than in the first tightening process, adjusting the output of the motor after the measured torque that is measured by the torque detector has reached a preset second control start torque, such that the measured torque reaches a preset second set torque in a phased manner through repeated increases and decreases in torque, and blocking power supply to the motor when the measured torque reaches the second set torque.
First claim
Opening claim text (preview).
What is claimed is: 1 . A tightening device comprising: a motor; a motor drive circuit that drives the motor; a drive shaft that is rotated by the motor, has a socket mounted on a tip thereof, and is configured to tighten a fastening member; a torque detector that detects a tightening torque that acts on the socket; and a control unit that controls the motor drive circuit based on a set torque set in advance and a measured torque measured by the torque detector, wherei…
Assignees
Inventors
Classifications
Operations & Transport · mapped topic
- B25B23/147Primary
Operations & Transport · mapped topic
- G01L5/24Primary
Physics · mapped topic
- B25B23/00Primary
Operations & Transport · mapped topic
Patent family
Related publications grouped by family.
External sources
Next steps
Free tools are coming soon. Tell us what you want to track and we'll notify you.
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US2015114138A1 cover?
- A tightening device is able to check that a fastening member has been fastened to a desired set torque or greater after being tightened, without loosening the fastening member. The tightening device is provided with a mode switching switch for switching between a first tightening process of adjusting the output of a motor after measured torque that is measured by a torque detector has reached a…
- Who is the assignee on this patent?
- Tone Co Ltd, Fuji Heavy Ind Ltd
- What technology area does this patent fall under?
- Primary CPC classification B25B23/147. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Thu Apr 30 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).