Fastening structure, head, and shank
US-2019118274-A1 · Apr 25, 2019 · US
Tip and drill
US10744575B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10744575-B2 |
| Application number | US-201716089382-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 27, 2017 |
| Priority date | Mar 29, 2016 |
| Publication date | Aug 18, 2020 |
| Grant date | Aug 18, 2020 |
How to read this patent
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- Title
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- Abstract
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- Assignees and inventors
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- Key dates
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- First independent claim
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- CPC / IPC classifications
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- Citations and related patents
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Abstract
Official abstract text for this publication.
A drill tip may include a first part and a second part. The first part includes a cutting edge located at a side of a first end, and a recess located at a side of a second end, where the first end is one side of a central axis and the second end is another side of the central axis. The second part includes a shank portion extending along the central axis, and an engaging portion which connects to the shank portion at a side of the first end and includes a diameter greater than the shank portion. The engaging portion is located in the recess.
First claim
Opening claim text (preview).
What is claimed is: 1. A drill tip, comprising: a first part comprising a cutting edge located at a side of a first end, and a recess located at a side of a second end, where the first end is one side of a central axis and the second end is another side of the central axis; and a second part comprising a shank portion extending along the central axis, and an engaging portion which connects to the shank portion at a side of the first end and comprises a diameter greater than the shank portion, wherein the engaging portion is located in the recess, the first part comprises a through hole extending from the recess toward a side of the first end, and the recess comprises a groove which connects to the through hole and extends toward a side of the second end. 2. The drill tip according to claim 1 , wherein an inner diameter of a part of the recess which is located at a side of the second end is smaller than an outer diameter of the engaging portion. 3. The drill tip according to claim 1 , wherein a side of the recess is a convex curved surface and a side of the engaging portion is a concave curved surface in opposing surfaces between the recess and the engaging portion which intersect with the central axis. 4. The drill tip according to claim 1 , wherein the first part is rotationally symmetric with respect to the central axis. 5. The drill tip according to claim 1 , wherein the engaging portion is located closer to a side of the second end than the cutting edge. 6. The drill tip according to claim 1 , wherein an end portion of the groove located at a side of the first end is located closer to the central axis than an end portion of the groove located at a side of the second end. 7. The drill tip according to claim 1 , wherein the second part is joined to the first part. 8. A drill, comprising: the drill tip according to claim 1 ; and a holder comprising a pocket at a side of the first end, and the pocket at which the drill tip is located.
Assignees
Inventors
Classifications
Details of tools for drilling machines · CPC title
Twist drills · CPC title
Cylindrical shanks of tools · CPC title
Connections between shanks and removable cutting heads · CPC title
- B23C5/10Primary
Shank-type cutters, i.e. with an integral shaft · CPC title
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US10744575B2 cover?
- A drill tip may include a first part and a second part. The first part includes a cutting edge located at a side of a first end, and a recess located at a side of a second end, where the first end is one side of a central axis and the second end is another side of the central axis. The second part includes a shank portion extending along the central axis, and an engaging portion which connects …
- Who is the assignee on this patent?
- Kyocera Corp
- What technology area does this patent fall under?
- Primary CPC classification B23C5/10. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Aug 18 2020 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 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).