US3675290A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable tool holder for releasable milling cutter bits for use in replaceable-bit milling cutter head-type milling machine
Assignee: MONTANWERKE WATER GmbH
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Filing: 1971-03-03
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Granted: 1972-07-11
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Expires: 1991-03-03
Abstract
Abstract The milling cutter head has slots to receive bit holders; each holder is a plate-like body formed with an opening to hold the bit, and a pair of slits directed to the opening which define, therebetween, a tongue extending in the direction toward the opening into which the bit is inserted. By pressing the tongue toward or away from the slits, for example by means of a screw bearing against the side of the tongue, the position of the bit with respect to the cutting plane can be adjusted. The holder is additionally formed with a bearing surface fitting on the milling head, the bearing surface having a screw which can be screwed to extend slightly therefrom and thus tip the entire holder about the front edge of the milling cutter head, to provide for angular adjustment.
Inventors
- 👤 Kurt Mayer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 02:50
CPC Classifications
B; B23; B23C; B23C5/00; B23C5/16; B23C5/20; B23C5/22; B23C5/24; B23C5/2472; B23C5/2265; B23C5/2278; B23C5/2486; B23C5/2493; Y; Y10; Y10T; Y10T407/00; Y10T407/19; Y10T407/1906; Y10T407/1908; Y10T407/1912; Y10T407/1914; Y10T407/1932
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
187 words
Adjustable tool holder for releasable cutter bits for milling machines, in which the tool holder is adapted to be placed in a formed slot (2) of a milling head (1) comprising a plate-like support body (4) formed with an opening (5) shaped to receive the cutter bit (3), said opening supporting the bit in predetermined position with respect to the cutting plane (15) of the milling head and facing the side of the milling head directed towards the work piece to be milled, the opening being defined at its inner side by support wall portions (16) adapted to have the cutter bit (3) bear thereagainst; said body (4) being further formed with a pair of slits (18,19) defining therebetween a tongue (17) integral with the body, said tongue (17) extending into the region of the tool bit receiving opening (5) and having a facing support edge (22); and means (21) bearing against the tongue to vary the position of the tongue intermediate the slits and thus to vary the position of the tool bit (3) within the opening (5) and with respect to the cutting plane (15).
Claim 2
Dependent Claim
187 words
Adjustable tool holder for releasable cutter bits for milling machines, in which the tool holder is adapted to be placed in a formed slot (2) of a milling head (1) comprising a plate-like support body (4) formed with an opening (5) shaped to receive the cutter bit (3), said opening supporting the bit in predetermined position with respect to the cutting plane (15) of the milling head and facing the side of the milling head directed towards the work piece to be milled, the opening being defined at its inner side by support wall portions (16) adapted to have the cutter bit (3) bear thereagainst; said body (4) being further formed with a pair of slits (18,19) defining therebetween a tongue (17) integral with the body, said tongue (17) extending into the region of the tool bit receiving opening (5) and having a facing support edge (22); and means (21) bearing against the tongue to vary the position of the tongue intermediate the slits and thus to vary the position of the tool bit (3) within the opening (5) and with respect to the cutting plane (15).
Claim 3
Dependent Claim
21 words
Tool holder according to claim 1, wherein the tongue (17) is of lesser thickness than the thickness of the body (4).
Claim 4
Dependent Claim
30 words
Tool holder according to claim 1, wherein the tongue extends in a direction with respect to the adjacent support wall portion (16) to form an angle therewith other than 90*.
Claim 5
Dependent Claim
31 words
Tool holder according to claim 1, wherein the tongue (17) and the cutting plane are inclined with respect to each other by an angle ( Alpha ) of less than 90*.
Claim 6
Dependent Claim
51 words
Tool holder according to claim 1, wherein the means (21) bearing against the tongue to vary its position intermediate the slits comprises a tapped opening formed in the body extending from an end surface toward the tongue; and an adjustable screw threaded into the tapped opening and bearing against the tongue.
Claim 7
Dependent Claim
67 words
Tool holder according to claim 1, wherein the plate-like body (4) has a bottom edge (25) adapted to seat in the milling head; said bottom edge is formed with a tapped opening (24); and an adjustment screw screwed into said tapped opening, said adjustment screw bearing against the milling head and enabling tipping of the tool holder about the front support edge (28) of the milling head.
Claim 8
Dependent Claim
45 words
Tool holder according to claim 6, wherein the plate-like body is formed with a rear wall portion adapted to seat (30) in the milling head; said rear wall portion being formed with a relief (31) to facilitate tipping of a tool holder in the head.
Claim 9
Dependent Claim
25 words
Tool holder according to claim 1, including a side cover-back-up plate (32) located adjacent the cutter bit receiving opeNing (5) of the plate-like body (4).
Claim 10
Dependent Claim
20 words
Tool holder according to claim 8, wherein the side cover plate and the plate-like body are a unitary, integral body.
Claim 11
Dependent Claim
25 words
Tool holder according to claim 8, wherein the side cover plate (32) in the region of the opening is formed with a ground surface (33).
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-07-11 | 1976-01-10 | 1976-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-11 | 1980-01-10 | 1980-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-11 | 1984-01-10 | 1984-07-11 | $7700.00 | Window Closed / Lapsed |