US3653133A - Replaceable cutting edge and tooth for earthmoving machines - Google Patents
Replaceable cutting edge and tooth for earthmoving machines Download PDFInfo
- Publication number
- US3653133A US3653133A US827655A US3653133DA US3653133A US 3653133 A US3653133 A US 3653133A US 827655 A US827655 A US 827655A US 3653133D A US3653133D A US 3653133DA US 3653133 A US3653133 A US 3653133A
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- US
- United States
- Prior art keywords
- cutting edge
- members
- tooth
- earth
- detachable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/28—Small metalwork for digging elements, e.g. teeth scraper bits
- E02F9/2808—Teeth
- E02F9/2816—Mountings therefor
- E02F9/2833—Retaining means, e.g. pins
Definitions
- Teeth for cutting edges are rather complex and costly.
- Each tooth generally includes an adapter fixed to and extending forwardly of the cutting edge, a hardened, replaceable tip for the adapter and retaining means for holding the tip in place. While the hardened tips can be replaced as they wear, it is also necessary in time to replace the cutting edge which requires removal and sometimes replacement of the adapter.
- a short section or module of cutting edge is formed with a tooth as an integral part thereof, thus enabling several such modules to provide a toothed cutting edge.
- FIG. 1 is a fragmentary view of a portion of a scraper bowl illustrating the cutting edge and supporting parts therefor in cross section and taken from the line II of FIG. 2;
- FIG. 2 is a view in plan looking down upon the cutting edge as from the line II-II of FIG. 1;
- FIG. 3 is an enlarged sectional view through one of the tooth units taken from the line IlI-III of FIG. 2;
- FIG. 4 is a sectional view taken along the line IVIV of FIG. 3;
- FIG. 5 is a plan view of a modified form of tooth unit.
- FIG. 1 the forward lower comer of one of the side walls of a scraper bowl is represented at 10.
- a conventional blade support member 12 and ramp structure generally indicated at 14 extend across the bowl between the side walls to support a cutting edge generally indicated at 16 in FIGS. 1 and 2.
- the cutting edge is made up of combined cutting edge and tooth units, the cutting edge part being in the form of a rectangular plate 18, and the tooth part being an integral forwardly extending tooth shaped member 20.
- the tooth elements 20 are welded into a V-shaped notch formed in the leading edge of the cutting edge members 18.
- a slight bend extending longitudinally of the tooth part increases the beam strength thereof and tends to increase the shedding of material from its surfaces as it passes through the earth.
- the modules are secured to the blade support 12 by conventional counter sunk bolts 24 such as are generally employed with cutting edges.
- FIGS. 3 and 4 which are enlarged cross sections of a module, illustrate the configuration particularly of the tooth part thereof.
- FIG. 5 a modified form of a module is shown in which the cutting edge portion shown at 18a and the tooth portion 20a are formed by being stamped from a single plate of metal. In this case, the forming and bolt holes are, of course, done before hardening.
- the module shown in FIG. 5 has the same general configuration as that shown in the other figures of the drawings.
- the modules disclosed may extend throughout the full length of an earth penetrating edge or, as in the case of a scraper, they may be disposed only throughout the central portion of the blade in the manner of a stinger bit.
- a detachable cutting edge means attached to the earthworking surface of an earthmoving device said cutting edge means comprising a plurality of module means detachably secured to said earthworking surface, each of said module means having a flat earthcutting edge member attached at a proximal part thereof directly to said earthworking surface and each of said module means also having a distinct earth-penetrating tooth member having a generally uniform cross-sectional thickness throughout its length and further having a rearward portion formed on a distal portion of said cutting edge member in substantial linear alignment therewith and a tooth portion extending forwardly and upwardly relative to said edge member to form an obtuse angle with respect to said earthworking surface.
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Component Parts Of Construction Machinery (AREA)
Abstract
A cutting edge for an earthmoving machine made in small replaceable modules each of which has a tooth-like portion extending forwardly therefrom so that replacement of worn parts can be done very economically.
Description
O Unlted States Patent [151 3,653,133 Black et al. 5] Apr. 4, 1972 [54] REPLACEABLE CUTTING EDGE AND [56] References Cited TOOTH FOR EARTHMOVING UNITED STATES PATENTS MACHINES 1,690,835 11/1928 [72] Inventors: William J. Black, Wilmington; William L. 2,211,786 3/1946 Holmstrom, Joliet; Richard K. Liess, 2,965,989 12/1960 .loliet; Max .1. Teasdale, Joliet, all of I11. 3,103,752 2,738,602 3/1956 [73] Assignee: Caterpillar Tractor Co., Peorla, lli.
- Primary ExaminerRobert E. Pulfrey [22] Flled' May 1969 Assistant Examiner-C. W, Hanor [21 1 Appl. No.: 827,655 Attorney-Fryer, Tjensvold, Feix, Phillips & Lempio 57 ABSTRACT [52] US. Cl ..37/l42, 172/7 13 t 1 511 Int. Cl ....E02f9/28,A01b 23/02 A cutting edge for an emhmoving machine made in Small 58 Field of Search ..37/141,142;172/713 replaceable modules each of which has a moth-like Portion extending forwardly therefrom so that replacement of worn parts can be done very economically.
8 Claims, 5 Drawing Figures SHEET 1 OF 2 PATENTED PR 4 m2 M m m m 0 E m ms w m IL L AM AM ARD BY J. TEASDALE W W 72.14.
I AT 0 REPLACEABLE CUTTING EDGE AND TOOTH FOR EARTHMOVING MACHINES Presently, earthmoving machines such as buckets, loaders, scrapers and bulldozers are often fitted with teeth projecting forwardly of the cutting edge which engages the earth. This tends to break the earth up to increase penetrability of the edge and thus increase the overall efficiency of the machine.
Teeth for cutting edges are rather complex and costly. Each tooth generally includes an adapter fixed to and extending forwardly of the cutting edge, a hardened, replaceable tip for the adapter and retaining means for holding the tip in place. While the hardened tips can be replaced as they wear, it is also necessary in time to replace the cutting edge which requires removal and sometimes replacement of the adapter.
In accordance with the present invention, a short section or module of cutting edge is formed with a tooth as an integral part thereof, thus enabling several such modules to provide a toothed cutting edge. This eliminates the usual adapter and retaining pin and is economical and easily replaced. The invention will be better understood from the following specification wherein reference is made to the accompanying drawings.
In the drawings:
FIG. 1 is a fragmentary view of a portion of a scraper bowl illustrating the cutting edge and supporting parts therefor in cross section and taken from the line II of FIG. 2;
FIG. 2 is a view in plan looking down upon the cutting edge as from the line II-II of FIG. 1;
FIG. 3 is an enlarged sectional view through one of the tooth units taken from the line IlI-III of FIG. 2;
FIG. 4 is a sectional view taken along the line IVIV of FIG. 3; and
FIG. 5 is a plan view of a modified form of tooth unit.
In FIG. 1, the forward lower comer of one of the side walls of a scraper bowl is represented at 10. A conventional blade support member 12 and ramp structure generally indicated at 14 extend across the bowl between the side walls to support a cutting edge generally indicated at 16 in FIGS. 1 and 2. In accordance with the present invention, the cutting edge is made up of combined cutting edge and tooth units, the cutting edge part being in the form of a rectangular plate 18, and the tooth part being an integral forwardly extending tooth shaped member 20.
The tooth elements 20 are welded into a V-shaped notch formed in the leading edge of the cutting edge members 18. A slight bend extending longitudinally of the tooth part increases the beam strength thereof and tends to increase the shedding of material from its surfaces as it passes through the earth. The modules are secured to the blade support 12 by conventional counter sunk bolts 24 such as are generally employed with cutting edges. FIGS. 3 and 4, which are enlarged cross sections of a module, illustrate the configuration particularly of the tooth part thereof.
In FIG. 5, a modified form of a module is shown in which the cutting edge portion shown at 18a and the tooth portion 20a are formed by being stamped from a single plate of metal. In this case, the forming and bolt holes are, of course, done before hardening. The module shown in FIG. 5 has the same general configuration as that shown in the other figures of the drawings.
The modules disclosed may extend throughout the full length of an earth penetrating edge or, as in the case of a scraper, they may be disposed only throughout the central portion of the blade in the manner of a stinger bit.
What is claimed is:
l. A detachable cutting edge means attached to the earthworking surface of an earthmoving device, said cutting edge means comprising a plurality of module means detachably secured to said earthworking surface, each of said module means having a flat earthcutting edge member attached at a proximal part thereof directly to said earthworking surface and each of said module means also having a distinct earth-penetrating tooth member having a generally uniform cross-sectional thickness throughout its length and further having a rearward portion formed on a distal portion of said cutting edge member in substantial linear alignment therewith and a tooth portion extending forwardly and upwardly relative to said edge member to form an obtuse angle with respect to said earthworking surface.
2. The detachable cutting edge means as claimed in claim I wherein said cutting edge members and said earth-penetrating tooth members are integrally formed.
3. The detachable cutting edge means as claimed in claim 2 wherein said cutting edge members and said earth-penetrating tooth members are formed from a single piece of metal.
4. The detachable cutting edge means as claimed in claim 2 wherein said earth-penetrating tooth members are connected to said cutting edge members by means of welding.
5. The detachable cutting edge means as claimed in claim 2 wherein said cutting edge members and said earth-penetrating tooth members are formed of a single metal casting.
6. The detachable cutting edge means of claim 2 wherein said cutting edge members and said earth-penetrating tooth members are forged.
Claims (8)
1. A detachable cutting edge means attached to the earthworking surface of an earthmoving device, said cutting edge means comprising a plurality of module means detachably secured to said earthworking surface, each of said module means having a flat earthcutting edge member attached at a proximal part thereof directly to said earthworking surface and each of said module means also having a distinct earth-penetrating tooth member having a generally uniform cross-sectional thickness throughout its length and further having a rearward portion formed on a distal portion of said cutting edge member in substantial linear alignment therewith and a tooth portion extending forwardly and upwardly relative to said edge member to form an obtuse angle with respect to said earthworking surface.
2. The detachable cutting edge means as claimed in claim 1 wherein said cutting edge members and said earth-penetrating tooth members are integrally formed.
3. The detachable cutting edge means as claimed in claim 2 wherein said cutting edge members and said earth-penetrating tooth members are formed from a single piece of metal.
4. The detachable cutting edge means as claimed in claim 2 wherein said earth-penetrating tooth members are connected to said cutting edge members by means of welding.
5. The detachable cutting edge means as claimed in claim 2 wherein said cutting edge members and said earth-penetrating tooth members are formed of a single metal casting.
6. The detachable cutting edge means of claim 2 wherein said cutting edge members and said earth-penetrating tooth members are forged.
7. The detachable cutting edge means of claim 1 wherein each of said earth-penetrating tooth members has an inverted, V-shaped, cross-sectional shape which provides an upwardly projecting central longitudinal portion along the length of each of said tooth members.
8. The detachable cutting edge means of claim 7 wherein the transverse dimension of each of said tooth members increases progressively from the distal end of said tooth members to said distal portions of said cutting edge members.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US82765569A | 1969-05-26 | 1969-05-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US3653133A true US3653133A (en) | 1972-04-04 |
Family
ID=25249786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US827655A Expired - Lifetime US3653133A (en) | 1969-05-26 | 1969-05-26 | Replaceable cutting edge and tooth for earthmoving machines |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US3653133A (en) |
Cited By (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4108250A (en) * | 1976-12-27 | 1978-08-22 | Caterpillar Tractor Co. | Cutting edge assembly for earthworking devices |
| US4238896A (en) * | 1979-08-24 | 1980-12-16 | Caterpillar Tractor Co. | Cutting edge assembly for a loader bucket |
| US6230424B1 (en) * | 1998-12-08 | 2001-05-15 | Caterpillar Inc. | Base edge protection assembly for an implement of a work machine |
| US20030093928A1 (en) * | 2000-11-27 | 2003-05-22 | Bierwith Robert S. | Lip assembly |
| US20040007367A1 (en) * | 2002-07-15 | 2004-01-15 | Torrey John E. | Method and apparatus for picking up seaweed and other litter |
| US20060225312A1 (en) * | 2005-03-30 | 2006-10-12 | Striegel Monte G | Trench wall ripper apparatus |
| US20090056174A1 (en) * | 2007-08-29 | 2009-03-05 | Caterpillar Inc. | Soil slicing spade bit and machine using same |
| US20090145616A1 (en) * | 2007-11-27 | 2009-06-11 | Black Cat Blades Ltd. | Ground engaging tool blade |
| US7992328B2 (en) | 2005-03-30 | 2011-08-09 | Striegel Monte G | Trench wall ripper apparatus |
| US20130219757A1 (en) * | 2012-02-21 | 2013-08-29 | Flem Justice, JR. | Mounting plate attachment for excavating device |
| US20160032556A1 (en) * | 2014-07-29 | 2016-02-04 | Caterpillar Inc. | Wear component for ground engaging tool |
| USD831742S1 (en) * | 2016-05-02 | 2018-10-23 | Thogus Products Company | Tooth for cutting edge |
| USD832309S1 (en) | 2017-08-30 | 2018-10-30 | Caterpillar Inc. | Lip shroud for a ground engaging machine implement |
| USD842347S1 (en) | 2017-10-11 | 2019-03-05 | Caterpillar Inc. | Shroud for a ground engaging machine implement |
| USD842346S1 (en) | 2017-10-11 | 2019-03-05 | Caterpillar Inc. | Shroud for a ground engaging machine implement |
| USD842345S1 (en) | 2017-07-21 | 2019-03-05 | Caterpillar Inc. | Lip shroud for a ground engaging machine implement |
| WO2019118102A1 (en) * | 2017-12-11 | 2019-06-20 | Caterpillar Inc. | Implement cutting edge with brazed white cast iron teeth |
| USD873306S1 (en) | 2018-10-03 | 2020-01-21 | Caterpillar Inc. | Bucket shroud |
| USD882645S1 (en) | 2018-10-03 | 2020-04-28 | Caterpillar Inc. | Bucket shroud |
| USD882646S1 (en) | 2018-11-09 | 2020-04-28 | Caterpillar Inc. | Bucket shroud |
| USD882644S1 (en) | 2018-10-03 | 2020-04-28 | Caterpillar Inc. | Bucket shroud |
| USD927561S1 (en) | 2019-10-04 | 2021-08-10 | Caterpillar Inc. | Bucket shroud |
| USD928849S1 (en) | 2019-10-04 | 2021-08-24 | Caterpillar Inc. | Bucket shroud |
| USD928848S1 (en) | 2019-10-04 | 2021-08-24 | Caterpillar Inc. | Bucket shroud |
| USD959505S1 (en) | 2021-03-25 | 2022-08-02 | Caterpillar Inc. | Bucket shroud |
| USD978923S1 (en) | 2021-06-03 | 2023-02-21 | Caterpillar Inc. | Bucket shroud |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1690835A (en) * | 1928-11-06 | Thomas ratkowski | ||
| US2211786A (en) * | 1938-03-05 | 1940-08-20 | Bucyrus Erie Co | Dipper lip and associated teeth |
| US2738602A (en) * | 1952-06-06 | 1956-03-20 | Cornelius R Meeks | Replacement points for excavating bucket teeth |
| US2965989A (en) * | 1958-05-23 | 1960-12-27 | Myrthan R Hibbard | End bits for blades |
| US3103752A (en) * | 1961-04-10 | 1963-09-17 | Allis Chalmers Mfg Co | Cutting blade for excavator |
-
1969
- 1969-05-26 US US827655A patent/US3653133A/en not_active Expired - Lifetime
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1690835A (en) * | 1928-11-06 | Thomas ratkowski | ||
| US2211786A (en) * | 1938-03-05 | 1940-08-20 | Bucyrus Erie Co | Dipper lip and associated teeth |
| US2738602A (en) * | 1952-06-06 | 1956-03-20 | Cornelius R Meeks | Replacement points for excavating bucket teeth |
| US2965989A (en) * | 1958-05-23 | 1960-12-27 | Myrthan R Hibbard | End bits for blades |
| US3103752A (en) * | 1961-04-10 | 1963-09-17 | Allis Chalmers Mfg Co | Cutting blade for excavator |
Cited By (41)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4108250A (en) * | 1976-12-27 | 1978-08-22 | Caterpillar Tractor Co. | Cutting edge assembly for earthworking devices |
| US4238896A (en) * | 1979-08-24 | 1980-12-16 | Caterpillar Tractor Co. | Cutting edge assembly for a loader bucket |
| US6230424B1 (en) * | 1998-12-08 | 2001-05-15 | Caterpillar Inc. | Base edge protection assembly for an implement of a work machine |
| US20030093928A1 (en) * | 2000-11-27 | 2003-05-22 | Bierwith Robert S. | Lip assembly |
| US6751897B2 (en) * | 2000-11-27 | 2004-06-22 | Robert S. Bierwith | Lip assembly |
| US6952892B1 (en) | 2000-11-27 | 2005-10-11 | Bierwith Robert S | Lip assembly |
| US20050241194A1 (en) * | 2000-11-27 | 2005-11-03 | Bierwith Robert S | Lip assembly |
| US20040007367A1 (en) * | 2002-07-15 | 2004-01-15 | Torrey John E. | Method and apparatus for picking up seaweed and other litter |
| US6892824B2 (en) * | 2002-07-15 | 2005-05-17 | John E. Torrey | Method and apparatus for picking up seaweed and other litter |
| US7712234B2 (en) * | 2005-03-30 | 2010-05-11 | Striegel Monte G | Trench wall ripper apparatus |
| US20060225312A1 (en) * | 2005-03-30 | 2006-10-12 | Striegel Monte G | Trench wall ripper apparatus |
| US7992328B2 (en) | 2005-03-30 | 2011-08-09 | Striegel Monte G | Trench wall ripper apparatus |
| US20090056174A1 (en) * | 2007-08-29 | 2009-03-05 | Caterpillar Inc. | Soil slicing spade bit and machine using same |
| US7841112B2 (en) * | 2007-08-29 | 2010-11-30 | Caterpillar Inc | Soil slicing spade bit and machine using same |
| US20090145616A1 (en) * | 2007-11-27 | 2009-06-11 | Black Cat Blades Ltd. | Ground engaging tool blade |
| US20130219757A1 (en) * | 2012-02-21 | 2013-08-29 | Flem Justice, JR. | Mounting plate attachment for excavating device |
| US20160032556A1 (en) * | 2014-07-29 | 2016-02-04 | Caterpillar Inc. | Wear component for ground engaging tool |
| USD831742S1 (en) * | 2016-05-02 | 2018-10-23 | Thogus Products Company | Tooth for cutting edge |
| USD857762S1 (en) | 2017-07-21 | 2019-08-27 | Caterpillar Inc. | Lip shroud for a ground engaging machine implement |
| USD842345S1 (en) | 2017-07-21 | 2019-03-05 | Caterpillar Inc. | Lip shroud for a ground engaging machine implement |
| USD832309S1 (en) | 2017-08-30 | 2018-10-30 | Caterpillar Inc. | Lip shroud for a ground engaging machine implement |
| USD858584S1 (en) | 2017-08-30 | 2019-09-03 | Caterpillar Inc. | Lip shroud for a ground engaging machine implement |
| USD842346S1 (en) | 2017-10-11 | 2019-03-05 | Caterpillar Inc. | Shroud for a ground engaging machine implement |
| USD842347S1 (en) | 2017-10-11 | 2019-03-05 | Caterpillar Inc. | Shroud for a ground engaging machine implement |
| WO2019118102A1 (en) * | 2017-12-11 | 2019-06-20 | Caterpillar Inc. | Implement cutting edge with brazed white cast iron teeth |
| USD901550S1 (en) | 2018-10-03 | 2020-11-10 | Caterpillar Inc. | Bucket shroud |
| USD873306S1 (en) | 2018-10-03 | 2020-01-21 | Caterpillar Inc. | Bucket shroud |
| USD882645S1 (en) | 2018-10-03 | 2020-04-28 | Caterpillar Inc. | Bucket shroud |
| USD882644S1 (en) | 2018-10-03 | 2020-04-28 | Caterpillar Inc. | Bucket shroud |
| USD901551S1 (en) | 2018-10-03 | 2020-11-10 | Caterpillar Inc. | Bucket shroud |
| USD901552S1 (en) | 2018-11-09 | 2020-11-10 | Caterpillar Inc. | Bucket shroud |
| USD882646S1 (en) | 2018-11-09 | 2020-04-28 | Caterpillar Inc. | Bucket shroud |
| USD927561S1 (en) | 2019-10-04 | 2021-08-10 | Caterpillar Inc. | Bucket shroud |
| USD928849S1 (en) | 2019-10-04 | 2021-08-24 | Caterpillar Inc. | Bucket shroud |
| USD928848S1 (en) | 2019-10-04 | 2021-08-24 | Caterpillar Inc. | Bucket shroud |
| USD952697S1 (en) | 2019-10-04 | 2022-05-24 | Caterpillar Inc. | Bucket shroud |
| USD991986S1 (en) | 2019-10-04 | 2023-07-11 | Caterpillar Inc. | Bucket shroud |
| USD1018602S1 (en) | 2019-10-04 | 2024-03-19 | Caterpillar Inc. | Bucket shroud |
| USD1046928S1 (en) | 2019-10-04 | 2024-10-15 | Caterpillar Inc. | Bucket shroud |
| USD959505S1 (en) | 2021-03-25 | 2022-08-02 | Caterpillar Inc. | Bucket shroud |
| USD978923S1 (en) | 2021-06-03 | 2023-02-21 | Caterpillar Inc. | Bucket shroud |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| AS | Assignment |
Owner name: CATERPILLAR INC., A CORP. OF DE.,ILLINOIS Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:CATERPILLAR TRACTOR CO., A CORP. OF CALIF.;REEL/FRAME:004669/0905 Effective date: 19860515 Owner name: CATERPILLAR INC., 100 N.E. ADAMS STREET, PEORIA, I Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:CATERPILLAR TRACTOR CO., A CORP. OF CALIF.;REEL/FRAME:004669/0905 Effective date: 19860515 |