WO2005091877A2 - Cutter for scarifier device - Google Patents
Cutter for scarifier device Download PDFInfo
- Publication number
- WO2005091877A2 WO2005091877A2 PCT/US2005/005926 US2005005926W WO2005091877A2 WO 2005091877 A2 WO2005091877 A2 WO 2005091877A2 US 2005005926 W US2005005926 W US 2005005926W WO 2005091877 A2 WO2005091877 A2 WO 2005091877A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cutter
- wheel
- cutter wheel
- bit
- cutter bit
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
- B28D1/18—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by milling, e.g. channelling by means of milling tools
- B28D1/181—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by milling, e.g. channelling by means of milling tools using cutters loosely mounted on a turning tool support
Definitions
- the field of the invention pertains to scarifier devices for removal of a portion of a flat surface such as on a floor, deck, bulkhead, roadway etc.
- the invention relates to the cutter bit for a scarifier device.
- a scarifier gouges or cuts and removes the surface revealing a lower surface. A new layer can then be placed on the lower surface. Similarly, a scarifier can be used to blend a higher portion of a concrete surface with the rest of the surface.
- a scarifier uses a drum assembly with multiple cutter wheels having cutting bits.
- the cutter wheels are mounted on a cutter shaft of the drum assembly.
- the drum assembly moves and presents the cutting bits on the teeth of the cutter wheel to the surface to be scarified.
- a problem with known scarifiers is that the cutter bits on the teeth of the cutter wheel are cutter bits that come to a point that does not cross or cover the full width of the cutter tooth. Another problem is that the cutter bits are not securely fastened to the cutter wheel and the cutter bits can become separated from the cutter wheel.
- the invention is a cutter bit for a cutter wheel of a scarifier device.
- the cutter wheel employs a cutter bit disposed across the full width of the tooth of the cutter wheel.
- the cutter bit can be made from carbide or a material of similar hardness and durability.
- the carbide cutter bit has a basic rectilinear shape as the cutter edge as viewed from the end of the cutter tooth.
- Chamfers can abut the rectilinear shape of the cutter bit and extend to the body of the cutter bit.
- the body of the cutter extends to a root.
- the cutter bit interlocks to the cutter wheel keeping the cutter bit positioned to the cutter wheel.
- the cutter bit can have an arcuate bulb on the root of the cutter bit.
- the cutter wheel has a receiving slot for receiving the carbide cutter.
- the receiving slot can have an arcuate part for matching with and for locking the cutter bit in place.
- the receiving slot can also have a dovetail configuration near the root for receiving and locking a carbide cutter having a corresponding dovetail configuration. Other configurations for locking the cutter bit tot he cutter wheel can be advantageously employed.
- the carbide cutter bit can be brazed into the receiving slot or pressed and locked into the receiving slot as designed.
- the carbide cutter bit can also be positioned to the tooth of the cutter wheel as the cutter wheel is formed by being milled, stamped, formed by EDM (Electrical Discharge Machining), cast, broached or by other means, etc.
- the cutter wheel can also employ an arcuate indent positioned vertically in a side of the pocket.
- the arcuate indent can be positioned along two sides of the pocket.
- Full width carbide cutter bits to be positioned to this cutter wheel can advantageously employ an arcuate portion on the side of the cutter bits. This allows the cutter bit to be securely retained in the pocket of the cutter wheel.
- FIG. 1 illustrates an environmental view of a scarifier device
- FIG. 2 illustrates a perspective partial view of a drum assembly of a scarifier device
- FIG. 3 illustrates an exploded view of a drum assembly for a scarifier device
- FIG. 4 illustrates a photographic view of a cutter wheel with a pointed carbide tool
- FIG. 5 illustrates a partial top view of a tooth of the cutter wheel with a pointed carbide tool
- FIG. 6 illustrates a partial side view of a tooth of the cutter wheel with a pointed carbide tool
- FIG. 7 illustrates a photographic view of the cutter wheel with a full width carbide tool positioned to an arcuate slot with bulbous root for receiving the carbide cutter
- FIG. 8 illustrates a photographic view of the cutter wheel with a full width carbide tool showing an arcuate slot for receiving the carbide cutter formed into the cutter wheel;
- FIG. 9 illustrates a side view of the cutter wheel for a full width carbide tool
- FIG. 10 illustrates a sectional view (taken along sectional line A-A of FIG. 9) of the cutter wheel for a full width carbide tool
- FIG. 11 illustrates a partial view of the arcuate bulbous root of the receiving slot of the cutter wheel for a full width carbide tool
- FIG. 12 illustrates a partial top view of the full width carbide cutter bit showing the full width carbide tool extending wider than the width of the cutter wheel;
- FIG. 13 illustrates a partial side view of the full width carbide cutter bit showing the full width carbide tool extending wider than the width of the cutter wheel;
- FIG. 14 illustrates a side view of a cutter wheel for a full width carbide tool
- FIG. 15 illustrates a sectional view (taken along sectional line A-A of FIG. 14) of a cutter wheel for a full width carbide tool
- FIG. 16 illustrates a partial top view of the pocket detail of the cutter wheel having slot with arcuate portion for a full width carbide tool
- FIG. 17 illustrates a partial side view of the pocket detail of the cutter wheel having slot with arcuate portion for a full width carbide tool:
- FIG. 18 illustrates a top view of a full width carbide cutter bit showing the full width carbide tool with arcuate portion
- FIG. 19 illustrates a side view of the full width carbide cutter bit showing the full width carbide tool full width carbide tool with arcuate portion.
- FIG. 1 Illustrated in FIG. 1, is new device 10 for scarifier device 12.
- Scarifier device 12 employs cutter drum assembly 14 shown in FIG. 2 and in FIG.3.
- Cutter wheel 16 is mounted to shaft 18 of cutter drum assembly 14.
- Cutter bit 20 comprises single point 22 for the cutter bit 20 mounted to a cutter tooth 24 of cutter wheel 16 (FIG.4-6).
- FIGs. 7-8 depict cutter bit 20 affixed across the width of cutter tooth 24 of cutter wheel 16.
- cutter wheel 16 employs slot 26 with an arcuate bulbous root 28 for receiving cutter bit 20 (FIG.7).
- Cutter wheel 16 employs a full width carbide cutter bit 20.
- Cutter wheel 16 has a full width carbide cutter bit 20 positioned into the cutter wheel 16 (FIG.8).
- FIG. 9 shows cutter wheel 16 with slot 26 and bulbous root 28.
- Cutter wheel 16 is depicted in sectional view taken along section lines A-A of FIG. 10.
- FIG. 11 shows larger view of cutter wheel 16 with slot 26 and bulbous root 28.
- Full width carbide cutter bit 20 is depicted in FIGs. 12 8 ⁇ 13 as having a rectilinear boss 30 as viewed from the end of the cutter tooth 24.
- Chamfers 32 abut the rectilinear boss 30 of the cutter bit and extend to the body of the cutter bit 20.
- Cutter wheel 34 is depicted in side view in FIG. 14. In FIG. 15, cutter wheel 34 is depicted in sectional view taken along section lines A-A of FIG. 14.
- FIG. 16 shows top view of detail of pocket 36 of cutter wheel 34 with arcuate indents 38 into sides of pocket 36.
- FIG. 17 shows side view of detail of pocket 36 of cutter wheel 34 with arcuate indents 38 into sides of pocket 36.
- Full width carbide cutter bit 40 is depicted in FIGs. 18 & 19 as having a rectilinear boss 30. Rectilinear boss 30 is viewed from the top view of full width cutter bit 40 in FIG. 18 showing arcuate portion 42 on either side of full width cutter bit 40.
- Rectilinear boss 30 is viewed from the side view of full width cutter bit 40 in FIG. 19 showing the arcuate portion 42 on either side of full width cutter bit 40.
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
A cutter and method of use of a cutter bit for a scarifier device for scarifying or planing a layer of a floor/deck/roadway/bulkhead. The cutter bit can be made from carbide or a material of similar hardness and durability. The cutter has a full width cutter edge that extends across the tooth of the cutter wheel. The full width cutter of the cutter bit can extend wider than the width of the cutter body. The full width cutter bit eliminates ridges left from the scarifying operation. The cutter bit is locked into slot on the tooth of the cutter wheel by an arcuate bulb root, by a dovetail root, by an arcuate portion on the cutter bit engageable with an arcuate indent in the cutter wheel, or by other configurations. The cutter bit can be brazed in place or fitted in place to the cutter tooth of the cutter wheel.
Description
CUTTER FOR SCARIFIER DEVICE
Reference to Related Application
This application is based on United States patent application serial number 60/550,117, filed March 4, 2004.
Background of the Invention
The field of the invention pertains to scarifier devices for removal of a portion of a flat surface such as on a floor, deck, bulkhead, roadway etc. In particular the invention relates to the cutter bit for a scarifier device.
To prepare a surface for an additional layer of pavement, oftentimes the existing pavement must be cut down and removed. Misaligned concrete joints and/or uneven surfaces can be aligned or smoothed by using a scarifier.
A scarifier gouges or cuts and removes the surface revealing a lower surface. A new layer can then be placed on the lower surface. Similarly, a scarifier can be used to blend a higher portion of a concrete surface with the rest of the surface.
A scarifier uses a drum assembly with multiple cutter wheels having cutting bits. The cutter wheels are mounted on a cutter shaft of the drum assembly. The drum assembly moves and presents the cutting bits on the teeth of the cutter wheel to the surface to be scarified.
A problem with known scarifiers is that the cutter bits on the teeth of the cutter wheel are cutter bits that come to a point that does not cross or cover the full width of the cutter tooth. Another problem is that the cutter bits are not securely fastened to the cutter wheel and the cutter bits can become separated from the cutter wheel.
Thus the cutter bit held in the cutter tooth could not cut into the material to be scarified across the full width of the cutter tooth. Ridges were cut in the material being scarified. This wasted scarifier operator time as multiple passes were required to attempt to remove ridges, which could cause ragged overlapping. A need existed for a convenient and useful device for creation of scarified/planed surface without ridges.
Summary of the Invention
The invention is a cutter bit for a cutter wheel of a scarifier device. The cutter wheel employs a cutter bit disposed across the full width of the tooth of the cutter wheel. The cutter bit can be made from carbide or a material of similar hardness and durability.
The carbide cutter bit has a basic rectilinear shape as the cutter edge as viewed from the end of the cutter tooth. Chamfers can abut the rectilinear shape of the cutter bit and extend to the body of the cutter bit. The body of the cutter extends to a root.
The cutter bit interlocks to the cutter wheel keeping the cutter bit positioned to the cutter wheel. The cutter bit can have an arcuate bulb on the root of the cutter bit. The cutter wheel has a receiving slot for receiving the carbide cutter. The receiving slot can have an arcuate part for matching with and for locking the cutter bit in place. The receiving slot can also have a dovetail configuration near the root for receiving and locking a carbide cutter having a corresponding dovetail configuration. Other configurations for locking the cutter bit tot he cutter wheel can be advantageously employed.
The carbide cutter bit can be brazed into the receiving slot or pressed and locked into the receiving slot as designed. The carbide cutter bit can also be positioned to the tooth of the cutter wheel as the cutter wheel is formed by being milled, stamped, formed by EDM (Electrical Discharge Machining), cast, broached or by other means, etc.
The cutter wheel can also employ an arcuate indent positioned vertically in a side of the pocket. The arcuate indent can be positioned along two sides of the pocket. Full width carbide cutter bits to be positioned to this cutter wheel can advantageously employ an arcuate portion on the side of the cutter bits. This allows the cutter bit to be securely retained in the pocket of the cutter wheel.
Brief Description of the Drawings
FIG. 1 illustrates an environmental view of a scarifier device;
FIG. 2 illustrates a perspective partial view of a drum assembly of a scarifier device;
FIG. 3 illustrates an exploded view of a drum assembly for a scarifier device;
FIG. 4 illustrates a photographic view of a cutter wheel with a pointed carbide tool;
FIG. 5 illustrates a partial top view of a tooth of the cutter wheel with a pointed carbide tool;
FIG. 6 illustrates a partial side view of a tooth of the cutter wheel with a pointed carbide tool;
FIG. 7 illustrates a photographic view of the cutter wheel with a full width carbide tool positioned to an arcuate slot with bulbous root for receiving the carbide cutter;
FIG. 8 illustrates a photographic view of the cutter wheel with a full width carbide tool showing an arcuate slot for receiving the carbide cutter formed into the cutter wheel;
FIG. 9 illustrates a side view of the cutter wheel for a full width carbide tool;
FIG. 10 illustrates a sectional view (taken along sectional line A-A of FIG. 9) of the cutter wheel for a full width carbide tool;
FIG. 11 illustrates a partial view of the arcuate bulbous root of the receiving slot of the cutter wheel for a full width carbide tool;
FIG. 12 illustrates a partial top view of the full width carbide cutter bit showing the full width carbide tool extending wider than the width of the cutter wheel;
FIG. 13 illustrates a partial side view of the full width carbide cutter bit showing the full width carbide tool extending wider than the width of the cutter wheel;
FIG. 14 illustrates a side view of a cutter wheel for a full width carbide tool;
FIG. 15 illustrates a sectional view (taken along sectional line A-A of FIG. 14) of a cutter wheel for a full width carbide tool;
FIG. 16 illustrates a partial top view of the pocket detail of the cutter wheel having slot with arcuate portion for a full width carbide tool;
FIG. 17 illustrates a partial side view of the pocket detail of the cutter wheel having slot with arcuate portion for a full width carbide tool:
FIG. 18 illustrates a top view of a full width carbide cutter bit showing the full width carbide tool with arcuate portion; and
FIG. 19 illustrates a side view of the full width carbide cutter bit showing the full width carbide tool full width carbide tool with arcuate portion.
Description of the Preferred Embodiment
Illustrated in FIG. 1, is new device 10 for scarifier device 12. Scarifier device 12 employs cutter drum assembly 14 shown in FIG. 2 and in FIG.3. Cutter wheel 16 is mounted to shaft 18 of cutter drum assembly 14. Cutter bit 20 comprises single point 22 for the cutter bit 20 mounted to a cutter tooth 24 of cutter wheel 16 (FIG.4-6).
FIGs. 7-8 depict cutter bit 20 affixed across the width of cutter tooth 24 of cutter wheel 16. In this version, cutter wheel 16 employs slot 26 with an arcuate bulbous root 28 for receiving cutter bit 20 (FIG.7). Cutter wheel 16 employs a full width carbide cutter bit 20.
Cutter wheel 16 has a full width carbide cutter bit 20 positioned into the cutter wheel 16 (FIG.8). FIG. 9 shows cutter wheel 16 with slot 26 and bulbous root 28. Cutter wheel 16 is depicted in sectional view taken along section lines A-A of FIG. 10. FIG. 11 shows larger view of cutter wheel 16 with slot 26 and bulbous root 28.
Full width carbide cutter bit 20 is depicted in FIGs. 12 8ι 13 as having a rectilinear boss 30 as viewed from the end of the cutter tooth 24. Chamfers 32 abut the rectilinear boss 30 of the cutter bit and extend to the body of the cutter bit 20.
Cutter wheel 34 is depicted in side view in FIG. 14. In FIG. 15, cutter wheel 34 is depicted in sectional view taken along section lines A-A of FIG. 14. FIG. 16 shows top view of detail of pocket 36 of cutter wheel 34 with arcuate indents 38 into sides of pocket 36. FIG. 17 shows side view of detail of pocket 36 of cutter wheel 34 with arcuate indents 38 into sides of pocket 36.
Full width carbide cutter bit 40 is depicted in FIGs. 18 & 19 as having a rectilinear boss 30. Rectilinear boss 30 is viewed from the top view of full width cutter bit 40 in FIG. 18 showing arcuate portion 42 on either side of full width cutter bit 40.
Rectilinear boss 30 is viewed from the side view of full width cutter bit 40 in FIG. 19 showing the arcuate portion 42 on either side of full width cutter bit 40.
Claims
1. A cutter bit device for a cutter wheel of a scarifier device, the cutter wheel having a width, the cutter bit device comprising a body having a generally rectilinear cutter edge, the body of the cutter bit device extending into the cutter wheel, the generally rectilinear cutter edge of the cutter bit having a width greater than the width of the cutter wheel.
2. The device according to claim 1 wherein the cutter wheel has a receiving slot and the cutter bit device body fits into the receiving slot of the cutter wheel.
3. The device according to claim 2 wherein the receiving slot of the cutter wheel partially employs an arcuate bulbous root and the cutter bit device body partially employs an arcuate bulbous shape lockingly fittable with the arcuate bulbous root of the receiving slot of the cutter wheel.
The device according to claim 2 wherein the receiving slot of the cutter wheel partially employs an dovetail shape and the cutter bit device body partially employs a dovetail shape fittable with the receiving slot of the cutter wheel.
5. The device according to claim 1 wherein the cutter bit comprises carbide.
6. The device according to claim 2 wherein the receiving slot of the cutter wheel employs an arcuate indent and the cutter bit device body employs an arcuate potion lockingly fittable with the arcuate indent of the receiving slot of the cutter wheel.
7. A cutter bit device for a cutter wheel of a scarifier device, the cutter wheel having a width, the cutter bit device corηprising a body having a generally rectilinear cutter edge, the body of the cutter bit device extending into the cutter wheel and being retained in the cutter wheel, the generally rectilinear cutter edge of the cutter bit having a width one of equal to and greater than the width of the cutter wheel.
8. A method of use of the cutter bit device according to claim 1, for a cutter wheel of a scarifier device, the cutter wheel having a width, comprising placing the body of the cutter bit device, the body having a generally rectilinear cutter edge into the cutter wheel, and positioning the generally rectilinear cutter edge of the cutter bit having a width greater than the width of the cutter wheel.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US55011704P | 2004-03-04 | 2004-03-04 | |
| US60/550,117 | 2004-03-04 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2005091877A2 true WO2005091877A2 (en) | 2005-10-06 |
| WO2005091877A3 WO2005091877A3 (en) | 2006-01-19 |
Family
ID=35056662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/US2005/005926 WO2005091877A2 (en) | 2004-03-04 | 2005-02-25 | Cutter for scarifier device |
Country Status (1)
| Country | Link |
|---|---|
| WO (1) | WO2005091877A2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102015114122B3 (en) * | 2015-08-26 | 2016-11-10 | Herrenknecht Ag | Device for removing building material |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US417468A (en) * | 1889-12-17 | William e | ||
| FR2248685A5 (en) * | 1973-10-17 | 1975-05-16 | Norton Co | Cutter disc with diamond segments - has tapered engagement sections on segments and core teeth locking together |
| US5012792A (en) * | 1988-12-27 | 1991-05-07 | Osaka Diamond Industrial Co., Ltd. | Rotary blade and a rotary substrate for use in the rotary blade |
| US5794503A (en) * | 1994-08-25 | 1998-08-18 | Tenryu Seikyo Kabushiki Kaisha | Disc cutter |
| US6196106B1 (en) * | 1998-10-28 | 2001-03-06 | Tigercat Industries Inc. | Tree felling disc saw with replaceable arcuate teeth |
| US20020112590A1 (en) * | 2001-02-20 | 2002-08-22 | Bohner Stephan E. | Tree felling disc saw with replaceable teeth |
-
2005
- 2005-02-25 WO PCT/US2005/005926 patent/WO2005091877A2/en active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US417468A (en) * | 1889-12-17 | William e | ||
| FR2248685A5 (en) * | 1973-10-17 | 1975-05-16 | Norton Co | Cutter disc with diamond segments - has tapered engagement sections on segments and core teeth locking together |
| US5012792A (en) * | 1988-12-27 | 1991-05-07 | Osaka Diamond Industrial Co., Ltd. | Rotary blade and a rotary substrate for use in the rotary blade |
| US5794503A (en) * | 1994-08-25 | 1998-08-18 | Tenryu Seikyo Kabushiki Kaisha | Disc cutter |
| US6196106B1 (en) * | 1998-10-28 | 2001-03-06 | Tigercat Industries Inc. | Tree felling disc saw with replaceable arcuate teeth |
| US20020112590A1 (en) * | 2001-02-20 | 2002-08-22 | Bohner Stephan E. | Tree felling disc saw with replaceable teeth |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102015114122B3 (en) * | 2015-08-26 | 2016-11-10 | Herrenknecht Ag | Device for removing building material |
| WO2017032588A1 (en) | 2015-08-26 | 2017-03-02 | Herrenknecht Aktiengesellschaft | Apparatus for removing construction material |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2005091877A3 (en) | 2006-01-19 |
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