Precision torque screwdriver
US-2016318165-A1 · Nov 3, 2016 · US
Power tool with a torque clutch
US8944181B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8944181-B2 |
| Application number | US-67576608-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 2, 2008 |
| Priority date | Oct 2, 2007 |
| Publication date | Feb 3, 2015 |
| Grant date | Feb 3, 2015 |
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- Title
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- Abstract
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- Assignees and inventors
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- First independent claim
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Abstract
Official abstract text for this publication.
A driving section generates rotational driving force and has an output shaft that outputs the rotational driving force. An end-bit mounting section holds an end bit and is rotatable about a rotational axis. A friction clutch is provided between the end-bit mounting section and the driving section. The friction clutch includes a drive member and a follow member. The drive member rotates together with the driving section and has a drive-side contact surface. The follow member rotates together with the end-bit mounting section and has a follow-side contact surface contactable with the drive-side contact surface. The friction clutch is movable between a transmission position where frictional force is produced between the drive-side contact surface and the follow-side contact surface so that the output shaft and the end-bit mounting section can rotate together, and a cutoff position where the output shaft and the end-bit mounting section are non-rotatable together.
First claim
Opening claim text (preview).
The invention claimed is: 1. A power tool comprising: a handle configured to be gripped by a user; a driving section configured to generate rotational driving force selectively in a forward direction and in a reverse direction and including an output shaft that outputs the rotational driving force; an end-bit mounting section configured to hold an end bit and to be rotatable about a rotational axis extending in an axial direction; and a friction clutch provided between the e…
Assignees
Inventors
Classifications
Operations & Transport · mapped topic
- B25B23/141Primary
Operations & Transport · mapped topic
Operations & Transport · mapped topic
Operations & Transport · mapped topic
Operations & Transport · mapped topic
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Frequently asked questions
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- What does patent US8944181B2 cover?
- A driving section generates rotational driving force and has an output shaft that outputs the rotational driving force. An end-bit mounting section holds an end bit and is rotatable about a rotational axis. A friction clutch is provided between the end-bit mounting section and the driving section. The friction clutch includes a drive member and a follow member. The drive member rotates together…
- Who is the assignee on this patent?
- Sato Shinichiro, Hitachi Koki Kk
- What technology area does this patent fall under?
- Primary CPC classification B25B23/141. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Feb 03 2015 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).