US3807007A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tool holder
Assignee: Sandvik AB
•
Filing: 1972-11-16
•
Granted: 1974-04-30
•
Expires: 1992-11-16
Abstract
Abstract For affixing a cutting insert in a toolholder of the type in which a pin is used to lock the insert in position, added clamping force is provided by a conically headed screw member adapted to move the pin sidewise upon inward rotation of the screw member.
Inventors
- 👤 B Lindskog
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 00:30
CPC Classifications
B; B23; B23B; B23B27/00; B23B27/14; B23B27/16; B23B27/1662; B23B2205/00; B23B2205/04; Y; Y10; Y10T; Y10T407/00; Y10T407/22; Y10T407/2272; Y10T407/2274; Y10T407/2276; Y10T407/2278; Y10T407/23
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
178 words
A tool holder having in one end thereof a site to receive an apertured cutting insert, said site having at least one lateral wall; a first bore through said holder; a tilt pin, received in said first bore, acting as a lever which is disposed to engage in said aperture; a second bore, through said holder, the longitudinal axis of which is substantially parallel to that of said first bore; and a screw member threadably received in a threaded part of said second bore and having both of its ends accessible for rotational movement of said screw member, said screw member having a generally conical head adapted to be received in a substantially cylindrical portion of said second bore while simultaneously engaging into a recess in the end portion of said tilt pin which recess corresponds to the shape of said conical head On said screw member, so that the tilt pin is moved sideways upon rotation of the screw member to bring the cutting insert firmly against the wall portion of the site of the tool holder.
Claim 2
Dependent Claim
178 words
A tool holder having in one end thereof a site to receive an apertured cutting insert, said site having at least one lateral wall; a first bore through said holder; a tilt pin, received in said first bore, acting as a lever which is disposed to engage in said aperture; a second bore, through said holder, the longitudinal axis of which is substantially parallel to that of said first bore; and a screw member threadably received in a threaded part of said second bore and having both of its ends accessible for rotational movement of said screw member, said screw member having a generally conical head adapted to be received in a substantially cylindrical portion of said second bore while simultaneously engaging into a recess in the end portion of said tilt pin which recess corresponds to the shape of said conical head On said screw member, so that the tilt pin is moved sideways upon rotation of the screw member to bring the cutting insert firmly against the wall portion of the site of the tool holder.
Claim 3
Dependent Claim
46 words
A tool holder as claimed in claim 1, wherein the head of said screw member comprises a cylindrical portion adjacent to the conical portion thereof adapted to engage in said substantially cylindrical bore to enable easy loosening thereof from said bore when unscrewing said screw member.
Claim 4
Dependent Claim
80 words
A tool holder as claimed in claim 1, wherein the tilt pin is steered in one plane during its lever action by provision of a straight side abutment surface in the tool holder, the lowermost part of the tilt pin being urged against said side abutment, during the lever action while a collared section of said tilt pin is urged against two points or surfaces in that portion of the pin-receiving bore which is enlarged complementarily to said collared section.
References Cited (Backward Citations)
US3488822A
Cited
US3409964A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-04-29 | 1977-10-29 | 1978-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-04-29 | 1981-10-29 | 1982-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-04-29 | 1985-10-29 | 1986-04-30 | $7700.00 | Window Closed / Lapsed |