CA1329194C - Ice auger - Google Patents
Ice augerInfo
- Publication number
- CA1329194C CA1329194C CA 577967 CA577967A CA1329194C CA 1329194 C CA1329194 C CA 1329194C CA 577967 CA577967 CA 577967 CA 577967 A CA577967 A CA 577967A CA 1329194 C CA1329194 C CA 1329194C
- Authority
- CA
- Canada
- Prior art keywords
- cylindrical body
- ice
- interior
- teeth
- cutting teeth
- 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 - Fee Related
Links
- 230000036346 tooth eruption Effects 0.000 claims abstract description 60
- 238000005520 cutting process Methods 0.000 claims description 49
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 230000009286 beneficial effect Effects 0.000 description 8
- 230000035515 penetration Effects 0.000 description 6
- 241000251468 Actinopterygii Species 0.000 description 4
- 210000002320 radius Anatomy 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 244000228957 Ferula foetida Species 0.000 description 1
- 101150007144 Intu gene Proteins 0.000 description 1
- 244000180577 Sambucus australis Species 0.000 description 1
- 235000018734 Sambucus australis Nutrition 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/44—Bits with helical conveying portion, e.g. screw type bits; Augers with leading portion or with detachable parts
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/008—Drilling ice or a formation covered by ice
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Confectionery (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
An ice auger consisting of a hollow cylindrical body having a first end, a second end and an interior. One or more cutting teeth are secured to the second end of the cylindrical body. A helical track extends from at least one of the cutting teeth at the second end toward the first end of the cylindrical body. A handle is secured to the first end of the cylindrical body, such that upon rotation of the cylindrical body a circumferencial cut is made in an ice surface by the cutting teeth thereby forming an ice plug which extends into the interior of the cylindrical body.
An ice auger consisting of a hollow cylindrical body having a first end, a second end and an interior. One or more cutting teeth are secured to the second end of the cylindrical body. A helical track extends from at least one of the cutting teeth at the second end toward the first end of the cylindrical body. A handle is secured to the first end of the cylindrical body, such that upon rotation of the cylindrical body a circumferencial cut is made in an ice surface by the cutting teeth thereby forming an ice plug which extends into the interior of the cylindrical body.
Description
X ~
The present invention relates to an Ice Auger.
BAC~GRO~ND OF TE~ I~TION
In order to ice f ish, an openiny is cut through the ice surface by means of an ice auger. The si~e of the opening mu~t be sufficient to permit the fisherman to observe the activities of fish under the ice surface and extract the fish through the opening once it has been caught. If the opening is too small, the fisherman will not known when fish are in his vicinity and will be deprived of the opportunity to take steps to entice the fish to take his baited hook. Similarly, if the opening iq too small, the fiqh, once hooked, may escape while the fisherman i~ endeavouring to extract it through the Opening. The only limitation on the how large an opening for ice fishing can be is dictated by considerations of safety; for when children are in the area precautions must be taken to en~ure that they do not fall through the opening.
Ice Augers presently employed scrape a radial path through the ice surface, turning the surface layer of ice into cuttings as the blade advances until an opening i~ formed. Thi~ method of operation has a fundamental disadvantage which i5 apparent when one considers the volume of ice in cubic inches which must be removed.
This volume may be calculated accordiny to the followiny formula:
~1 Volume = 3.14 x radiu~ of opening in inches/aquared x depth of openin~ in înches.
Using, as an e~ample, an openiny with a 3 inch radius cut through a 40 inch depth of ice, a volume of 1130.4 '~ 3~ cubic inches of ice must be removed. If an opening with :: ' . '~
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a ~ inch radius i~ to be cut to the same depth, the volume increases to 6154.4. As the radius of the opening increases the volume of ice to be removed increases dramatically. It tak~s a considerable amount of effort to remove thi~ additional volume of ice.
Regardles~ of the ~ize of the opening, remnants of the suttings in the form of ice chip~ ~ill be floating in the opening and must be removed by using a strainer or ~coop of some kind. The debris left from the cuttings clutters the site where the ice fi~hing is to take place.
~s , SUMMhRY OF THE INVENTION
15What i8 required in an ice auger which c~n form ~`J openings without turnin~ the entire volume of ice ~ removed into cuttings.
1~ Accordiny to the present invention there is 20 provided an Ice Auger which is compri~ed of a hollow cylindrical body having a first end, a second end and an ~, interior. One or more cutting teeth are secured to the second end of the cylindrical body. A helical track ! extends from at leaat one of the cutting teeth at the 25 second end toward the fir~t end of the cylindrical body.
Means for rot~ting the cylindrical body are secured to ;~( the first end of the cylindrical body, 3uch that upon rotation of the cylindrical body a circumferencial cut i~ made in an ice surface by the cutting teeth thereby 30 forming an ice plug which extends into the interior of the cylindrical body.
~:1 `~l Althouyh beneficial re~ults may be obtained from using the ice auger as described, cutting teeth with ~j 35 cutting edges on just one 3ide are not e~ficient in .1 ~, '~l , ~, . i :
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cutting a cylindrical ice plug ~Inder some ice conditions nor are they well suited to shifting the cuttings laterally into the helical track where they may be : carried to the surface. Even more beneficial result~
5 may there~ore be obtained if the cutting teeth are -~ modified in accordance with a preferred feature of the ~, invention, each of the cutting tee-th having two cutting edges one of which is substantially parallel to the circumference of the cylindrical body and the other of 10 which is substantially perpendicular to the rylindrical body.
. I ~
Although beneficial results may be obtained from using the ice auger as described, if the cutting teeth 15 take too lar~e of a "bite" out of the ice the ice auger . will be prevented from rotating. Even more beneficial ;' re~ults may therefore be obtained if the second end of the cylindrical body is modified by the addition of the ~ preferred feature of having guideY secured to the second -1 20 end of the cyllndrical body to control the amount of ice the teeth can engage upon rotatio~ of the cylindrical body.
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Although beneficial result~ may be obtained from 25 using the ice auger as described, after the ice plug has been formed it must be removed from the opening using a ~ device such as an ice pick. Even more beneficial .: results may therefore be ob-tained if means for retaining the ice plug within the interior of the cylindrical body . 30 are built into the ice auger to permit the ice plug to :~ be extracted as the cylindrical body i~ withdrawn from ; the opening created. This can be accomplished using one 3 of two preferred features as alternatives. One -~ pre~erred feature being upwardly extending arcuate teeth ~ 35 pivotally mounted within the interior of the cylindrical ., . ~ ~
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, 4 ~32ql94 body, such that the weight of the ice causes the teeth ~', to pivot into a position more tightly engaging the ice plu~, mea~s bein~ provided to retract the teeth to remove the ice plug rom the interior of the cylindrical l 5 body. An alternative preferred feature being to have I the interior of the cylindrical body enclosed by solid !~ side walls and an end cap at the first end to form an inte~ior cha~ber, a valve being po~iitioned in the end cap such that air may be bled out through the valve as ~ 10 the ice plug is oceupying the interior chamber of the '; cylindrical body, and the valve can be closed to form a. vacuum to retain the ice plug within the interior -~ chamber until the vacuum i8 released by reopening the ;-~ valve.
:, ' 15 Although beneficial resiults may be obtained from using the ice auger as deqcribed, the cylindrical body tends to 51ip sideway~ on a smooth ice surface as the user starts to make the opening. Even more beneficial 20 results may therefore ba obtained if the ice auger is modified to add a centering device. This can be accomplished using one of two preferred features as alternatives. One preferred feature being a spring biased disk which extends from the second end of the 2~ cylindrical body and is l~ovable longitudinally in the i interior 4f the cylindrical body in response to pressure from the ice plug, the disk having a centrally posiitioned piercing member such that the disk grips the ~, surface o the ice and prevents the second end of the `~, 30 cylindrical body from moving transversely while the cutting teeth are engaging the ice surface. An alternative preferred feature being a centrally :. ~
'''.''j! positioned piercing member extending ~rom the ~irst end ;I past the secona end of the cylindrical body ~uch tha-t l~ 35 the piercing member pierces the surface of the ice and :, `',' :, , ., ;, . .
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.j , prevents -the second end of the cylindrical body from .moving transversely while the cutting teeth are engaging .the ice surface.
..5 BRIEF DESCRIPTION OF T~ DRAWINGS
These and other features of the invention will become more apparent from the follo~wing description in : which reference i~ made to the appended drawings, wherein:
FIGUR~ 1 is a perspective view of a fir~t preferred embodiment of the invention.
FIG~ 2 is a detail view of a portion of the ice auger illustrated in BIG~R~ 1.
FIGURE 3 is a perspective view of a ~econd 15 preferred embodiment of the invention.
FIG~RE ~ is a top plan view of a disc portion of the ice auger illustrated in FIGURE 3.
; FIGURE 5 is a side elevation view of a disc portion tf of the ice auger illustrated in FIGURE 3.
FIGURE 6 is a detail view of a portion of the ice auger illu~trated in FIGnR~ 3.
~IGURE ~ is a perspective view of a third preferred ~mbodiment of the invention.
,i FIGURE 8 is a longitudinal section view taken along ~,25 section line 8-3 of FIGUR~ ~.
:f . D T~IL~D D~SCRIPTIOY OF ~E~ PREF~RRgD EM~ODI~T
.fThe preferred embodiments will now be described ~iwith roference ~o ~IG~RES 1 throu~h ~. The preferred ,j30 embodiment~, generally de~ignated by reference numerals `~100, 200, and 300 respectively are ice augers.
.4fIce Auger 100, a~i illu~trated in FIGUR~S 1 and 2, ,~consists of a hollow cylindrical body 102 having a fir~t -il 3send 104, a ~econd end 106 and an in-terior 10$.
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~ Cylindrical body 102 is consitructed in the form of a `~ cage with longitudinal memberj 103 connected by rings ~, 105. Four cut-ting teeth identified for convenience of . . ~
- reference as pairs 110 and 112 are secured to second end 6 106 of cylindrical body 102. Each of the pairs of cutting t~eth 110 and 112 havin~ two cutting edges 114 , and 116, as illustrated in FIGUR~ 2. Cutting edge 114 `~ i5 ~ubstantially parallel to cylindrical body 102.
Cutting edge 116 is substantially perpendicular to 10 cylindrical body 102. A helical trac~ 118 in the form of a flange extends from each of cutting teeth 110.
~7 H~lical flanges 118 extend from second end 106 to first ~nd 104 of cylindrical body ~02. A handle 120 is `'. secured to first end 104 of cylindrical body 102. Two 15 guides 122 are secured to second end 106 of cylindrical body 102.
The operation of ice auger 100 will IlOW be described with r~ference to ~IG~R~S 1 and 2. Ice auger 20 100 is positioned on an ice surface with pairs of cutting teeth 110 and 112 at seco~d end 106 of cylindrical body 102 engaging the ice surfac,e.
Cylindrical body 102 is then manually rotated by the user manipulating handle 120. Upon rotation of ~, 25 cylindrical body 102 a circumferencial cut i3 made in ~, the ice surface. The vertical penetration is made into the ice surface by cutting edge 116 of cutting teeth ,~ pairs 110 and 112. The lateral penetration is made into ~Y the ice ~urface by cutting edye 114 o cutting teeth 30 pairs 110 and 112, which also serves to shift the cutting~ laterally. As the cuttings created by cutting teeth 110 are shifted laterally they are picked up and ~ guided alon~ h~lical flanye 118 toward first end 104 of ;~, cylindrical body 102. As cutting teeth 112 do not have j 35 connec-ting helical flanges, cuttinys created by cutting . .
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teeth 112 accumulate until they contact and are directed along one of helical flanges 118 as cylindrical body 102 : rotate~. If cutting edge~ 116 of cuttiny teeth pairs 110 and 112 take too large of a "bite" ice auger 100 i8 `~ 5 prevented from rotatiny. Guide~ 122 prevent this problem from occurring as they contr~ol the amount of ice ; cutting ed~es 116 of teeth 110 and 112 can engage upon rotation o cylindrical body 102. As cylindrical body ~102 becomes imbedded further into the ice surface an ice .l10 plug is formed which extends into interior 108 of cylindrical body 192. When ice au~er 100 has cut -'through the entire thickness of the ice ~urface `lcylindrical body 102 is then drawn out of the ice leaving the ice pluy in the opening created. The ice 15 plug is then extracted from the opening ucing an ice pic~, or similar means.
Ice Auger 200, as illustrated in FIGURES 3 through 6, consists of a hollow cylindrical body 202 having a -~20 first end 204, a second end 206 and an interior 208.
..Cylindrical body 202 is constructed in the form o~ a ¦ cage with longitudinal member~ 203 connected by ring~
`~¦ 205. Four cutting teeth identified for convenience of reference as pairs 210 and 212 are secured to second end 25 206 of cylindrical body 202. Each of cutting teeth 210 ~i and 212 have two cutting edges 214 and 216. Cutting -l edge 214 is substantially parallel to cylindrical body ' ! 202. Cutting edge 216 is sub~tantially perpendicular to the cylindrical body 202. A helical track 218 in the ' 30 form of a flange extends from each cutting teeth 210.
-- Helical flange-~ 218 extend from second end 206 toward ;.;~`. fir~t end 204 of cylindrical body 202. Two guide~ 222 -~; are ~ecured to second end 206 of cylindrical body 202.
-,~ A concentrically aligned coupling 224 i~ ~ecured by 35 brace~ 226 to first end 204 of cylindrical body 202. A
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~ 8 1329194 v disk 228 is positioned within interior 208 of cylindrical body 202. As illustrated in FIG~R~S 4 and `~, 5, disk Z28 has a peripheral lip 230 having 910ts 232 ~ which engage longitudinal me~bers 203 of cylindrical `~6 body 202. Disk 228 has a centrally poYitioned piercing ~,member 234. Two upwardly extending arcuate teeth 236 ~are pivotally mounted to pins 238 within interior 208 of `~jcylindrical body 202. A release wire 242 i~ conn~cted to a release bar 240 adjacient each of teeth 236. Each ~010 of rel~ase wires 242 extends from arcuate teeth 236 to .'`end 204 of cylindrical body 202 termina-tiny in a -~/grasping rin~ 246. As best illustrated in FIG~R~ 6, arcuate t~eth 236 is biased by a wire spring 244 and is mounted on supporting bracket 248 which attaches to one 15 of longitudinal members 203. Release bar 240 pivots ;~about pin 250. A stop member 252 un the surface of bracket 248 serves to limit the movement of release bar 240.
~i The operation of ice auger 200 will now be described with reference to FIGBR~S 3 through 6. Ice .j auger 200 is positioned on an ice sur~ace with pair~ of .~l cutting teeth 210 and 212 at ~econd end 206 of : cylindrical body 202 engagins the ice surface.
~25 Cylindrical body 202 is then secured by coupling 224 to the rotating shaft of a drive motor or drill brace (not ~,sho~n) ~hich mechanically rotates cylindrical body 202.
~,Upon rotation of cylindrical body 202 a circumferencial .icut is made in the ice surface. The torque created by 30 the drive motor ~not shown) has a tendency on smooth ice surfaces to cau e cylindrical body 202 to move `'~transversely until such time as cutting teeth 210 and 212 have penetrated a distance into the ice surface.
Pierciny member 234 of disk 228 grips the surface of the ice to keep cylindrical body 202 rotating ,';~
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~ concentrically. This prevent~ second end 206 of ;`` cylindrical body 202 from moving tran~ve~sely while cutting teeth 210 and 212 are engaging the ic~ surface.
S The vertical penetration is made into the ice surface by cutting edge 216 of cuttiny teeth pairs 210 and 212.
~i The lateral penetration is made into the ice surface by cutting edge 214 of cutting teeth pairs 210 and 212, which also serves to shift the cuttings laterally. As ~ the cutti~gs created by cutting teeth 210 are shifted i~ 10 laterally they are picked up and guided alony helical -l flan~e 218 toward fixst end 204 of cylindrical body 202.
As cutting teeth 212 do not have connecting helical flanges, cuttings created by cutting teeth 212 accumulate urltil they contact and are directed along one 15 of helical flanges 218 as cylindrical body 202 rotates.
If cutting edges 216 of cutting teeth pairs 210 and 212 take too large of a "bite" it tends to 8top the rotation ~, of ice auger 200; guides 222 prevent this from occurring as they control the amount of ice cutting edges 216 of i 20 teeth 210 and 212 can engage upo~ rotation of l cylindrical body 202. As cylindrical body 202 becomes -~j imbedded further into the ice surface an ice plug is formed which extends into interior 208 of cylindrical body 202. Disk 228 i~ movable longitudinally in 25 interior 208 of cylindrical body 202 in r~ponse to . i pressure from the ice plug. When ice auger 200 has cut through the en-tire thickness of the ice surface ~ cylindrical body 202 is then drawn out of the ice.
!,~ Teeth 236 are biased ~y springs 244 which urge teeth 236-1 `~i 30 tG protrude into interior 208 of cy}indrical body 202.
l As the ice plug slo~ly move~ into interior 208 of i~ cylindrical body 202 during the ~utting process, teeth 236 are pushed out of the path of the ice plug.
However, as cylindrical body 202 is lifted upward the ~ 35 weight of the ice causes the ice plug to move rapidly '.;'~
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, 10 downward. Teeth 236 pivot forward intu a position tightly ~ngaging the ice plug. Once cylindrical body 202 has been removed from the opening the ice plug can be removed from interior 208 by pulli~g grasping rings 246 which cause~ wires 242 to ex~rt sufficient pressure to caus~ release bars 240 to pivot thereby retracting teeth 236 and releasi~g the ice plug.
Ice Au~er 300, as illustrated in ~IG~ES ~ and B, 10 consists of a hollow cylindrical body 302 having a first Pnd 304 and a second end 306. Cylindrical body 302 is ~:- enclosed by solid side walls 307 and an end cap 309 at first end 304 to form an interior chamber 308. Four cutting teeth identified for convenience of reference as 15 pairs 310 and 312 are secured to ~econd end 306 of cylindrical body 302. Each of cuttiny teeth 310 and 312 have two cutting edges 314 and 316. Cutting edge 314 is substantially parallel to cylindrical body 302. Cutting . ~dge 316 is substantially perpendic~llar to the - 20 cylindrical body 302. A helical t~ack 318 in the form , of a flange extends from each cutting teeth 310.
-.~ Helical flanges 318 extend from second end 306 toward fir3t end 304 of cylindrical body 302. Two guides 322 are ~ecured to second end 306 of cylindrical body 302.
2B A concentrically aligned coupling 324 is secured to end cap 309 at fir~t end 304 of cylindrical body 302. A
~; valve 343 is positioned in end cap 309. As best :, illustrated in FIGUR~ 8, valve 348 consists of an air i release port 350, which can be selectively blocked by a 30 plate 352 which pivots on a pin 354. Also illu~trated .. in FIG~Re B, i8 a piercing member 356 which is secured to ~nd cap 309 and extends from end 304 to past end 306 of cylindrical body 302. Piercing member 356 ~erve6 as i~ a centering device which prevents transvers~ movement of , 35 , ~ .
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cylindrical body 302. Piercing member has a helical flange 358.
.
The operation of ice auge~ 300 will now be described with reference to FI~R~S ~ and 8. Ice auger 300 is positioned on an ice surface with pair~ of cutting teeth 310 and 312 at second end 306 of cyli~drical body 302 engaging the ic~ surface.
Cylindrical body 302 is then ~ecured by cDupling 324 to 10 the rotating shaft of a drive motor or drill brace (not ~,shown) which mechanically rotates cylindrical hody 302.
The torgue created by the drive motor (not shown) has a .tendency on smooth ice surface to cau~e cylindrical -~body 302 to move transversely untîl such time as cutting 15 teeth 210 and 212 have penetrated a distance into the ice surface. Piercing member 356 pierce~ the surface of the ice to keep cylindrical body 302 rotating concentrically and prevcnt ~econd end 306 of cylindrical body 302 from moving transver~ely while cutting teeth ~`20 310 and 312 are engaging the ice surface. Upon rotation `~,vf cylindrical body 302 a circumferencial cut is made in ,lthc ice su~face. The vertical penetration is made into the ice surface by cutting edge 316 of cutting teeth ~:~pairs 310 and 312. The lateral penetration i8 made into ;i25 the ice surface by cutting edge 314 of cutting teeth pairs 310 and 312, which also serves to shift the .'cuttings laterally. As the cu-ttings cre~ted by cutting ~-`teeth 210 are ~hifted laterally they are picked up and guided alon~ helical flange 318 toward first end 304 of i30 cylindrical body 302. As cutting teeth 312 do not ha~e connecting helical flanges, cuttings created by cutting ~'teeth 312 accumulate until they contact and are directed . .
,~along one of helical flanges 313 as cylindrical body 302 rotate~. If cutting edges 316 of cutting teeth pairs ,35 310 and 312 take too large of a "bite" it tends to ', '!,', '`~
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impede the rotation of ic~ auger 300; guides 322 prevent ~this from occurring as they control the ~mount of ice -~cutting edges 316 of t0eth 310 and 312 can en~age upon rotation of cylindrical body 302. As cylindrical body 5 302 become~ imbedded further into the ice surfac~ an ice plug is formed which extends into interior chamber 308 of cylindrical body 302. Valve 348 is left open during the cutting proces~ in order that air may be bled out ,through air release port 350 as the ice plug is ;,10 occupying interior cha~ber 308 of cylindrical body 302.
.When ice auger 300 ha~ cut throu~h the entire thicknes~
of the ice surface, valve 34~ is then closed by pivoting . ~
:-plate 352 on pin 354. This iorms a vacuum which retains the ice plug within i~terior chamber 308 while the ice 15 plug i9 being extracted from the opening. The ice plug i~ then release by reopening valve 348.
~;It should be noted that the bodies of the various ~,embodiments of the ice auger occu~y only a ~mall volume i20 of the cut made by the cutting teeth. This allow5 -lsufficient room for clearance of the cuttings, which in ,the embodiments illustrated, are carried along a helical -~flange to the ~urface. Although the dimensions of the embodiments may vary, the embodiments illustrated 25 provided for a 1/8 of an inch clearance for pa5~age of ~,cuttings. The cutting teeth extended perpendicularly l/2 of an inch. The side wall of the cylindrical body wa~ 1/8 of an inch thick, and the helical flange extended 1/4 of an inch from the cylindrical body leaving the preferred cle~rance of 1/8 of an inch.
':', The applicant ha~ ~ound that using the invention, it is ea~ier to join a series of openings than was previously the case usin~ conventional ice augers. The 3~ applicant has found that once the ice plug i5 removed , ;, r I, .~
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13 l 32ql q 4 from the opening, it may be covered and used as a seat thereby eliminating the need ~or the fisherman to carry ~, a chair.
:.
It will be apparent to one skilled in the art that the present invention dramatically reduces the vo 3ume of cuttings which must be removed to create an openiny in ~' an ice ~urface. It will further be apparent to one skilled in the art that the present invention enables a ~3 lo larger openir-g tv b~ made with less effort re~uired than ~ other ice augers. It will further be apparent th~t the j pre~ent invention, although it does not totally eliminate,. does reduce the need -to scoop accumulation~
31 of ice cuttings floating in the water and the mount of .~ 15 ice cuttings at the fishing site, generally. It will 3, finally be apparent to one skilled in th~ art that modification~ may be made without departing from the 3 ~pirit and scope of the invention as embodied in the claim~; and that all matter contained in the 20 accompanying specification -qhould be interpreted a~
illustrative only and not in a limiting sense. For example, although the embodiments illustrated all u~e a helical track in the form a flange, the helical track .;;~ could be in the form of a groove in the ~ide wall of the 25 cylindrical body.
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The present invention relates to an Ice Auger.
BAC~GRO~ND OF TE~ I~TION
In order to ice f ish, an openiny is cut through the ice surface by means of an ice auger. The si~e of the opening mu~t be sufficient to permit the fisherman to observe the activities of fish under the ice surface and extract the fish through the opening once it has been caught. If the opening is too small, the fisherman will not known when fish are in his vicinity and will be deprived of the opportunity to take steps to entice the fish to take his baited hook. Similarly, if the opening iq too small, the fiqh, once hooked, may escape while the fisherman i~ endeavouring to extract it through the Opening. The only limitation on the how large an opening for ice fishing can be is dictated by considerations of safety; for when children are in the area precautions must be taken to en~ure that they do not fall through the opening.
Ice Augers presently employed scrape a radial path through the ice surface, turning the surface layer of ice into cuttings as the blade advances until an opening i~ formed. Thi~ method of operation has a fundamental disadvantage which i5 apparent when one considers the volume of ice in cubic inches which must be removed.
This volume may be calculated accordiny to the followiny formula:
~1 Volume = 3.14 x radiu~ of opening in inches/aquared x depth of openin~ in înches.
Using, as an e~ample, an openiny with a 3 inch radius cut through a 40 inch depth of ice, a volume of 1130.4 '~ 3~ cubic inches of ice must be removed. If an opening with :: ' . '~
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a ~ inch radius i~ to be cut to the same depth, the volume increases to 6154.4. As the radius of the opening increases the volume of ice to be removed increases dramatically. It tak~s a considerable amount of effort to remove thi~ additional volume of ice.
Regardles~ of the ~ize of the opening, remnants of the suttings in the form of ice chip~ ~ill be floating in the opening and must be removed by using a strainer or ~coop of some kind. The debris left from the cuttings clutters the site where the ice fi~hing is to take place.
~s , SUMMhRY OF THE INVENTION
15What i8 required in an ice auger which c~n form ~`J openings without turnin~ the entire volume of ice ~ removed into cuttings.
1~ Accordiny to the present invention there is 20 provided an Ice Auger which is compri~ed of a hollow cylindrical body having a first end, a second end and an ~, interior. One or more cutting teeth are secured to the second end of the cylindrical body. A helical track ! extends from at leaat one of the cutting teeth at the 25 second end toward the fir~t end of the cylindrical body.
Means for rot~ting the cylindrical body are secured to ;~( the first end of the cylindrical body, 3uch that upon rotation of the cylindrical body a circumferencial cut i~ made in an ice surface by the cutting teeth thereby 30 forming an ice plug which extends into the interior of the cylindrical body.
~:1 `~l Althouyh beneficial re~ults may be obtained from using the ice auger as described, cutting teeth with ~j 35 cutting edges on just one 3ide are not e~ficient in .1 ~, '~l , ~, . i :
., .
.
3 ~32ql9~
cutting a cylindrical ice plug ~Inder some ice conditions nor are they well suited to shifting the cuttings laterally into the helical track where they may be : carried to the surface. Even more beneficial result~
5 may there~ore be obtained if the cutting teeth are -~ modified in accordance with a preferred feature of the ~, invention, each of the cutting tee-th having two cutting edges one of which is substantially parallel to the circumference of the cylindrical body and the other of 10 which is substantially perpendicular to the rylindrical body.
. I ~
Although beneficial results may be obtained from using the ice auger as described, if the cutting teeth 15 take too lar~e of a "bite" out of the ice the ice auger . will be prevented from rotating. Even more beneficial ;' re~ults may therefore be obtained if the second end of the cylindrical body is modified by the addition of the ~ preferred feature of having guideY secured to the second -1 20 end of the cyllndrical body to control the amount of ice the teeth can engage upon rotatio~ of the cylindrical body.
.
.
Although beneficial result~ may be obtained from 25 using the ice auger as described, after the ice plug has been formed it must be removed from the opening using a ~ device such as an ice pick. Even more beneficial .: results may therefore be ob-tained if means for retaining the ice plug within the interior of the cylindrical body . 30 are built into the ice auger to permit the ice plug to :~ be extracted as the cylindrical body i~ withdrawn from ; the opening created. This can be accomplished using one 3 of two preferred features as alternatives. One -~ pre~erred feature being upwardly extending arcuate teeth ~ 35 pivotally mounted within the interior of the cylindrical ., . ~ ~
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, 4 ~32ql94 body, such that the weight of the ice causes the teeth ~', to pivot into a position more tightly engaging the ice plu~, mea~s bein~ provided to retract the teeth to remove the ice plug rom the interior of the cylindrical l 5 body. An alternative preferred feature being to have I the interior of the cylindrical body enclosed by solid !~ side walls and an end cap at the first end to form an inte~ior cha~ber, a valve being po~iitioned in the end cap such that air may be bled out through the valve as ~ 10 the ice plug is oceupying the interior chamber of the '; cylindrical body, and the valve can be closed to form a. vacuum to retain the ice plug within the interior -~ chamber until the vacuum i8 released by reopening the ;-~ valve.
:, ' 15 Although beneficial resiults may be obtained from using the ice auger as deqcribed, the cylindrical body tends to 51ip sideway~ on a smooth ice surface as the user starts to make the opening. Even more beneficial 20 results may therefore ba obtained if the ice auger is modified to add a centering device. This can be accomplished using one of two preferred features as alternatives. One preferred feature being a spring biased disk which extends from the second end of the 2~ cylindrical body and is l~ovable longitudinally in the i interior 4f the cylindrical body in response to pressure from the ice plug, the disk having a centrally posiitioned piercing member such that the disk grips the ~, surface o the ice and prevents the second end of the `~, 30 cylindrical body from moving transversely while the cutting teeth are engaging the ice surface. An alternative preferred feature being a centrally :. ~
'''.''j! positioned piercing member extending ~rom the ~irst end ;I past the secona end of the cylindrical body ~uch tha-t l~ 35 the piercing member pierces the surface of the ice and :, `',' :, , ., ;, . .
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.j , prevents -the second end of the cylindrical body from .moving transversely while the cutting teeth are engaging .the ice surface.
..5 BRIEF DESCRIPTION OF T~ DRAWINGS
These and other features of the invention will become more apparent from the follo~wing description in : which reference i~ made to the appended drawings, wherein:
FIGUR~ 1 is a perspective view of a fir~t preferred embodiment of the invention.
FIG~ 2 is a detail view of a portion of the ice auger illustrated in BIG~R~ 1.
FIGURE 3 is a perspective view of a ~econd 15 preferred embodiment of the invention.
FIG~RE ~ is a top plan view of a disc portion of the ice auger illustrated in FIGURE 3.
; FIGURE 5 is a side elevation view of a disc portion tf of the ice auger illustrated in FIGURE 3.
FIGURE 6 is a detail view of a portion of the ice auger illu~trated in FIGnR~ 3.
~IGURE ~ is a perspective view of a third preferred ~mbodiment of the invention.
,i FIGURE 8 is a longitudinal section view taken along ~,25 section line 8-3 of FIGUR~ ~.
:f . D T~IL~D D~SCRIPTIOY OF ~E~ PREF~RRgD EM~ODI~T
.fThe preferred embodiments will now be described ~iwith roference ~o ~IG~RES 1 throu~h ~. The preferred ,j30 embodiment~, generally de~ignated by reference numerals `~100, 200, and 300 respectively are ice augers.
.4fIce Auger 100, a~i illu~trated in FIGUR~S 1 and 2, ,~consists of a hollow cylindrical body 102 having a fir~t -il 3send 104, a ~econd end 106 and an in-terior 10$.
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~ Cylindrical body 102 is consitructed in the form of a `~ cage with longitudinal memberj 103 connected by rings ~, 105. Four cut-ting teeth identified for convenience of . . ~
- reference as pairs 110 and 112 are secured to second end 6 106 of cylindrical body 102. Each of the pairs of cutting t~eth 110 and 112 havin~ two cutting edges 114 , and 116, as illustrated in FIGUR~ 2. Cutting edge 114 `~ i5 ~ubstantially parallel to cylindrical body 102.
Cutting edge 116 is substantially perpendicular to 10 cylindrical body 102. A helical trac~ 118 in the form of a flange extends from each of cutting teeth 110.
~7 H~lical flanges 118 extend from second end 106 to first ~nd 104 of cylindrical body ~02. A handle 120 is `'. secured to first end 104 of cylindrical body 102. Two 15 guides 122 are secured to second end 106 of cylindrical body 102.
The operation of ice auger 100 will IlOW be described with r~ference to ~IG~R~S 1 and 2. Ice auger 20 100 is positioned on an ice surface with pairs of cutting teeth 110 and 112 at seco~d end 106 of cylindrical body 102 engaging the ice surfac,e.
Cylindrical body 102 is then manually rotated by the user manipulating handle 120. Upon rotation of ~, 25 cylindrical body 102 a circumferencial cut i3 made in ~, the ice surface. The vertical penetration is made into the ice surface by cutting edge 116 of cutting teeth ,~ pairs 110 and 112. The lateral penetration is made into ~Y the ice ~urface by cutting edye 114 o cutting teeth 30 pairs 110 and 112, which also serves to shift the cutting~ laterally. As the cuttings created by cutting teeth 110 are shifted laterally they are picked up and ~ guided alon~ h~lical flanye 118 toward first end 104 of ;~, cylindrical body 102. As cutting teeth 112 do not have j 35 connec-ting helical flanges, cuttinys created by cutting . .
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teeth 112 accumulate until they contact and are directed along one of helical flanges 118 as cylindrical body 102 : rotate~. If cutting edge~ 116 of cuttiny teeth pairs 110 and 112 take too large of a "bite" ice auger 100 i8 `~ 5 prevented from rotatiny. Guide~ 122 prevent this problem from occurring as they contr~ol the amount of ice ; cutting ed~es 116 of teeth 110 and 112 can engage upon rotation o cylindrical body 102. As cylindrical body ~102 becomes imbedded further into the ice surface an ice .l10 plug is formed which extends into interior 108 of cylindrical body 192. When ice au~er 100 has cut -'through the entire thickness of the ice ~urface `lcylindrical body 102 is then drawn out of the ice leaving the ice pluy in the opening created. The ice 15 plug is then extracted from the opening ucing an ice pic~, or similar means.
Ice Auger 200, as illustrated in FIGURES 3 through 6, consists of a hollow cylindrical body 202 having a -~20 first end 204, a second end 206 and an interior 208.
..Cylindrical body 202 is constructed in the form o~ a ¦ cage with longitudinal member~ 203 connected by ring~
`~¦ 205. Four cutting teeth identified for convenience of reference as pairs 210 and 212 are secured to second end 25 206 of cylindrical body 202. Each of cutting teeth 210 ~i and 212 have two cutting edges 214 and 216. Cutting -l edge 214 is substantially parallel to cylindrical body ' ! 202. Cutting edge 216 is sub~tantially perpendicular to the cylindrical body 202. A helical track 218 in the ' 30 form of a flange extends from each cutting teeth 210.
-- Helical flange-~ 218 extend from second end 206 toward ;.;~`. fir~t end 204 of cylindrical body 202. Two guide~ 222 -~; are ~ecured to second end 206 of cylindrical body 202.
-,~ A concentrically aligned coupling 224 i~ ~ecured by 35 brace~ 226 to first end 204 of cylindrical body 202. A
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~ 8 1329194 v disk 228 is positioned within interior 208 of cylindrical body 202. As illustrated in FIG~R~S 4 and `~, 5, disk Z28 has a peripheral lip 230 having 910ts 232 ~ which engage longitudinal me~bers 203 of cylindrical `~6 body 202. Disk 228 has a centrally poYitioned piercing ~,member 234. Two upwardly extending arcuate teeth 236 ~are pivotally mounted to pins 238 within interior 208 of `~jcylindrical body 202. A release wire 242 i~ conn~cted to a release bar 240 adjacient each of teeth 236. Each ~010 of rel~ase wires 242 extends from arcuate teeth 236 to .'`end 204 of cylindrical body 202 termina-tiny in a -~/grasping rin~ 246. As best illustrated in FIG~R~ 6, arcuate t~eth 236 is biased by a wire spring 244 and is mounted on supporting bracket 248 which attaches to one 15 of longitudinal members 203. Release bar 240 pivots ;~about pin 250. A stop member 252 un the surface of bracket 248 serves to limit the movement of release bar 240.
~i The operation of ice auger 200 will now be described with reference to FIGBR~S 3 through 6. Ice .j auger 200 is positioned on an ice sur~ace with pair~ of .~l cutting teeth 210 and 212 at ~econd end 206 of : cylindrical body 202 engagins the ice surface.
~25 Cylindrical body 202 is then secured by coupling 224 to the rotating shaft of a drive motor or drill brace (not ~,sho~n) ~hich mechanically rotates cylindrical body 202.
~,Upon rotation of cylindrical body 202 a circumferencial .icut is made in the ice surface. The torque created by 30 the drive motor ~not shown) has a tendency on smooth ice surfaces to cau e cylindrical body 202 to move `'~transversely until such time as cutting teeth 210 and 212 have penetrated a distance into the ice surface.
Pierciny member 234 of disk 228 grips the surface of the ice to keep cylindrical body 202 rotating ,';~
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~ concentrically. This prevent~ second end 206 of ;`` cylindrical body 202 from moving tran~ve~sely while cutting teeth 210 and 212 are engaging the ic~ surface.
S The vertical penetration is made into the ice surface by cutting edge 216 of cuttiny teeth pairs 210 and 212.
~i The lateral penetration is made into the ice surface by cutting edge 214 of cutting teeth pairs 210 and 212, which also serves to shift the cuttings laterally. As ~ the cutti~gs created by cutting teeth 210 are shifted i~ 10 laterally they are picked up and guided alony helical -l flan~e 218 toward fixst end 204 of cylindrical body 202.
As cutting teeth 212 do not have connecting helical flanges, cuttings created by cutting teeth 212 accumulate urltil they contact and are directed along one 15 of helical flanges 218 as cylindrical body 202 rotates.
If cutting edges 216 of cutting teeth pairs 210 and 212 take too large of a "bite" it tends to 8top the rotation ~, of ice auger 200; guides 222 prevent this from occurring as they control the amount of ice cutting edges 216 of i 20 teeth 210 and 212 can engage upo~ rotation of l cylindrical body 202. As cylindrical body 202 becomes -~j imbedded further into the ice surface an ice plug is formed which extends into interior 208 of cylindrical body 202. Disk 228 i~ movable longitudinally in 25 interior 208 of cylindrical body 202 in r~ponse to . i pressure from the ice plug. When ice auger 200 has cut through the en-tire thickness of the ice surface ~ cylindrical body 202 is then drawn out of the ice.
!,~ Teeth 236 are biased ~y springs 244 which urge teeth 236-1 `~i 30 tG protrude into interior 208 of cy}indrical body 202.
l As the ice plug slo~ly move~ into interior 208 of i~ cylindrical body 202 during the ~utting process, teeth 236 are pushed out of the path of the ice plug.
However, as cylindrical body 202 is lifted upward the ~ 35 weight of the ice causes the ice plug to move rapidly '.;'~
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, 10 downward. Teeth 236 pivot forward intu a position tightly ~ngaging the ice plug. Once cylindrical body 202 has been removed from the opening the ice plug can be removed from interior 208 by pulli~g grasping rings 246 which cause~ wires 242 to ex~rt sufficient pressure to caus~ release bars 240 to pivot thereby retracting teeth 236 and releasi~g the ice plug.
Ice Au~er 300, as illustrated in ~IG~ES ~ and B, 10 consists of a hollow cylindrical body 302 having a first Pnd 304 and a second end 306. Cylindrical body 302 is ~:- enclosed by solid side walls 307 and an end cap 309 at first end 304 to form an interior chamber 308. Four cutting teeth identified for convenience of reference as 15 pairs 310 and 312 are secured to ~econd end 306 of cylindrical body 302. Each of cuttiny teeth 310 and 312 have two cutting edges 314 and 316. Cutting edge 314 is substantially parallel to cylindrical body 302. Cutting . ~dge 316 is substantially perpendic~llar to the - 20 cylindrical body 302. A helical t~ack 318 in the form , of a flange extends from each cutting teeth 310.
-.~ Helical flanges 318 extend from second end 306 toward fir3t end 304 of cylindrical body 302. Two guides 322 are ~ecured to second end 306 of cylindrical body 302.
2B A concentrically aligned coupling 324 is secured to end cap 309 at fir~t end 304 of cylindrical body 302. A
~; valve 343 is positioned in end cap 309. As best :, illustrated in FIGUR~ 8, valve 348 consists of an air i release port 350, which can be selectively blocked by a 30 plate 352 which pivots on a pin 354. Also illu~trated .. in FIG~Re B, i8 a piercing member 356 which is secured to ~nd cap 309 and extends from end 304 to past end 306 of cylindrical body 302. Piercing member 356 ~erve6 as i~ a centering device which prevents transvers~ movement of , 35 , ~ .
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cylindrical body 302. Piercing member has a helical flange 358.
.
The operation of ice auge~ 300 will now be described with reference to FI~R~S ~ and 8. Ice auger 300 is positioned on an ice surface with pair~ of cutting teeth 310 and 312 at second end 306 of cyli~drical body 302 engaging the ic~ surface.
Cylindrical body 302 is then ~ecured by cDupling 324 to 10 the rotating shaft of a drive motor or drill brace (not ~,shown) which mechanically rotates cylindrical hody 302.
The torgue created by the drive motor (not shown) has a .tendency on smooth ice surface to cau~e cylindrical -~body 302 to move transversely untîl such time as cutting 15 teeth 210 and 212 have penetrated a distance into the ice surface. Piercing member 356 pierce~ the surface of the ice to keep cylindrical body 302 rotating concentrically and prevcnt ~econd end 306 of cylindrical body 302 from moving transver~ely while cutting teeth ~`20 310 and 312 are engaging the ice surface. Upon rotation `~,vf cylindrical body 302 a circumferencial cut is made in ,lthc ice su~face. The vertical penetration is made into the ice surface by cutting edge 316 of cutting teeth ~:~pairs 310 and 312. The lateral penetration i8 made into ;i25 the ice surface by cutting edge 314 of cutting teeth pairs 310 and 312, which also serves to shift the .'cuttings laterally. As the cu-ttings cre~ted by cutting ~-`teeth 210 are ~hifted laterally they are picked up and guided alon~ helical flange 318 toward first end 304 of i30 cylindrical body 302. As cutting teeth 312 do not ha~e connecting helical flanges, cuttings created by cutting ~'teeth 312 accumulate until they contact and are directed . .
,~along one of helical flanges 313 as cylindrical body 302 rotate~. If cutting edges 316 of cutting teeth pairs ,35 310 and 312 take too large of a "bite" it tends to ', '!,', '`~
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impede the rotation of ic~ auger 300; guides 322 prevent ~this from occurring as they control the ~mount of ice -~cutting edges 316 of t0eth 310 and 312 can en~age upon rotation of cylindrical body 302. As cylindrical body 5 302 become~ imbedded further into the ice surfac~ an ice plug is formed which extends into interior chamber 308 of cylindrical body 302. Valve 348 is left open during the cutting proces~ in order that air may be bled out ,through air release port 350 as the ice plug is ;,10 occupying interior cha~ber 308 of cylindrical body 302.
.When ice auger 300 ha~ cut throu~h the entire thicknes~
of the ice surface, valve 34~ is then closed by pivoting . ~
:-plate 352 on pin 354. This iorms a vacuum which retains the ice plug within i~terior chamber 308 while the ice 15 plug i9 being extracted from the opening. The ice plug i~ then release by reopening valve 348.
~;It should be noted that the bodies of the various ~,embodiments of the ice auger occu~y only a ~mall volume i20 of the cut made by the cutting teeth. This allow5 -lsufficient room for clearance of the cuttings, which in ,the embodiments illustrated, are carried along a helical -~flange to the ~urface. Although the dimensions of the embodiments may vary, the embodiments illustrated 25 provided for a 1/8 of an inch clearance for pa5~age of ~,cuttings. The cutting teeth extended perpendicularly l/2 of an inch. The side wall of the cylindrical body wa~ 1/8 of an inch thick, and the helical flange extended 1/4 of an inch from the cylindrical body leaving the preferred cle~rance of 1/8 of an inch.
':', The applicant ha~ ~ound that using the invention, it is ea~ier to join a series of openings than was previously the case usin~ conventional ice augers. The 3~ applicant has found that once the ice plug i5 removed , ;, r I, .~
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13 l 32ql q 4 from the opening, it may be covered and used as a seat thereby eliminating the need ~or the fisherman to carry ~, a chair.
:.
It will be apparent to one skilled in the art that the present invention dramatically reduces the vo 3ume of cuttings which must be removed to create an openiny in ~' an ice ~urface. It will further be apparent to one skilled in the art that the present invention enables a ~3 lo larger openir-g tv b~ made with less effort re~uired than ~ other ice augers. It will further be apparent th~t the j pre~ent invention, although it does not totally eliminate,. does reduce the need -to scoop accumulation~
31 of ice cuttings floating in the water and the mount of .~ 15 ice cuttings at the fishing site, generally. It will 3, finally be apparent to one skilled in th~ art that modification~ may be made without departing from the 3 ~pirit and scope of the invention as embodied in the claim~; and that all matter contained in the 20 accompanying specification -qhould be interpreted a~
illustrative only and not in a limiting sense. For example, although the embodiments illustrated all u~e a helical track in the form a flange, the helical track .;;~ could be in the form of a groove in the ~ide wall of the 25 cylindrical body.
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Claims (9)
1. An Ice Auger, comprising:
a. a hollow cylindrical body having a first end, a second end, and an interior;
b. one or more cutting teeth secured to the second end of the cylindrical body;
c. a helical track extending from at least one of the cutting teeth at the second end toward the first end of the cylindrical body;
d. means for rotating the cylindrical body secured to the first end of the cylindrical body, such that upon rotation of the cylindrical body a circumferential cut is made in an ice surface by the cutting teeth forming an ice plug which extends into the interior of the cylindrical body; and e. guides secured to the second end of the cylindrical body to control the amount of ice the teeth can engage.
a. a hollow cylindrical body having a first end, a second end, and an interior;
b. one or more cutting teeth secured to the second end of the cylindrical body;
c. a helical track extending from at least one of the cutting teeth at the second end toward the first end of the cylindrical body;
d. means for rotating the cylindrical body secured to the first end of the cylindrical body, such that upon rotation of the cylindrical body a circumferential cut is made in an ice surface by the cutting teeth forming an ice plug which extends into the interior of the cylindrical body; and e. guides secured to the second end of the cylindrical body to control the amount of ice the teeth can engage.
2. An Ice Auger, comprising:
a. a hollow cylindrical body having a first end, a second end, and an interior;
b. one or more cutting teeth secured to the second end of the cylindrical body;
c. a helical track extending from at least one of the cutting teeth at the second end toward the first end of the cylindrical body;
d. means for rotating the cylindrical body secured to the first end of the cylindrical body, such that upon rotation of the cylindrical body a circumferential cut is made in an ice surface by the cutting teeth forming an ice plug which extends into the interior of the cylindrical body; and e. upwardly extending arcuate teeth pivotally mounted within the interior of the cylindrical body, such that the teeth pivot out of the path of an ice plug entering the interior of the cylindrical body but movement of the ice plug in the opposed direction results in the teeth pivoting into a position engaging the ice plug and thereby retaining the ice plug within the interior of the cylindrical body, means being provided to retract the teeth in order to remove the ice plug from the interior of the cylindrical body.
a. a hollow cylindrical body having a first end, a second end, and an interior;
b. one or more cutting teeth secured to the second end of the cylindrical body;
c. a helical track extending from at least one of the cutting teeth at the second end toward the first end of the cylindrical body;
d. means for rotating the cylindrical body secured to the first end of the cylindrical body, such that upon rotation of the cylindrical body a circumferential cut is made in an ice surface by the cutting teeth forming an ice plug which extends into the interior of the cylindrical body; and e. upwardly extending arcuate teeth pivotally mounted within the interior of the cylindrical body, such that the teeth pivot out of the path of an ice plug entering the interior of the cylindrical body but movement of the ice plug in the opposed direction results in the teeth pivoting into a position engaging the ice plug and thereby retaining the ice plug within the interior of the cylindrical body, means being provided to retract the teeth in order to remove the ice plug from the interior of the cylindrical body.
3. An Ice Auger as defined in Claim 1 or 2, having a disk which extends from the second end of the cylindrical body and is movable longitudinally into the interior of the cylindrical body in response to pressure from the ice plug, the disk having a centrally positioned piercing member such that the disk grips the surface of the ice and prevents the second end of the cylindrical body from moving transversely while the cutting teeth are engaging the ice surface.
4. An Ice Auger as defined in Claim 1 or 2, having a centrally positioned piercing member extending from the first end past the second end of the cylindrical body such that the piercing member pierces the surface of the ice and prevents the second end of the cylindrical body from moving transversely while the cutting teeth are engaging the ice surface.
5. An Ice Auger as defined in Claim 4, the piercing member having a helical track whereby ice cuttings may be moved from the first end to the second end of the cylindrical body.
6. An Ice Auger, comprising:
a. a hollow cylindrical body having a first end, a second end and an interior;
b. four cutting teeth secured to the second end of the cylindrical body, each of the cutting teeth having two cutting edges one of which is substantially parallel to the cylindrical body and the other of which is substantially perpendicular to the cylindrical body;
c. a helical flange extending from two of the cutting teeth at the second end toward the first end of the cylindrical body;
d. a handle for rotating the cylindrical body secured to the first end of the cylindrical body, such that upon rotation of the cylindrical body a circumferential cut is made in an ice surface by the cutting teeth forming an ice plug which extends into the interior of the cylindrical body; and e. guides secured to the second end of the cylindrical body to control the amount of ice the teeth can engage upon rotation of the cylindrical body.
a. a hollow cylindrical body having a first end, a second end and an interior;
b. four cutting teeth secured to the second end of the cylindrical body, each of the cutting teeth having two cutting edges one of which is substantially parallel to the cylindrical body and the other of which is substantially perpendicular to the cylindrical body;
c. a helical flange extending from two of the cutting teeth at the second end toward the first end of the cylindrical body;
d. a handle for rotating the cylindrical body secured to the first end of the cylindrical body, such that upon rotation of the cylindrical body a circumferential cut is made in an ice surface by the cutting teeth forming an ice plug which extends into the interior of the cylindrical body; and e. guides secured to the second end of the cylindrical body to control the amount of ice the teeth can engage upon rotation of the cylindrical body.
7. An Ice Auger, comprising:
a. a hollow cylindrical body having a first end, a second end and an interior;
b. one or more cutting teeth secured to the second end of the cylindrical body;
c. a helical flange extending from at least one of the cutting teeth at the second end toward the first end of the cylindrical body;
d. a concentrically aligned coupling secured to the first end of the cylindrical body whereby the cylindrical body may be rotatably secured to a rotating shaft, such that upon rotation of the cylindrical body a circumferential cut is made in an ice surface by the cutting teeth forming an ice plug which extends into the interior of the cylindrical body;
e. guides secured to the second end of the cylindrical body to control the amount of ice the teeth can engage upon rotation of the cylindrical body; and f. means for retaining the ice plug within the interior of the cylindrical body.
a. a hollow cylindrical body having a first end, a second end and an interior;
b. one or more cutting teeth secured to the second end of the cylindrical body;
c. a helical flange extending from at least one of the cutting teeth at the second end toward the first end of the cylindrical body;
d. a concentrically aligned coupling secured to the first end of the cylindrical body whereby the cylindrical body may be rotatably secured to a rotating shaft, such that upon rotation of the cylindrical body a circumferential cut is made in an ice surface by the cutting teeth forming an ice plug which extends into the interior of the cylindrical body;
e. guides secured to the second end of the cylindrical body to control the amount of ice the teeth can engage upon rotation of the cylindrical body; and f. means for retaining the ice plug within the interior of the cylindrical body.
8. An Ice Auger as defined in Claim 7, having a disk which extends from the second end of the cylindrical body and is movable longitudinally in the interior of the cylindrical body in response to pressure from the ice plug, the disk having a centrally positioned piercing member such that the disk grips the surface of the ice and prevents the second end of the cylindrical body from moving transversely while the cutting teeth are engaging the ice surface.
9. An Ice Auger, comprising:
a. a hollow cylindrical body having a first end, a second end and an interior;
b. four cutting teeth secured to the second end of the cylindrical body, each of the cutting teeth having two cutting edges one of which is substantially parallel to the cylindrical body and the other of which is substantially perpendicular to the cylindrical body;
c. a helical flange extending from two of the cutting teeth at the second end toward the first end of the cylindrical body;
d. guides secured to the second end of the cylindrical body to control the amount of ice the teeth can engage;
e. a concentrically aligned coupling secured to the first end of the cylindrical body whereby the cylindrical body may be rotatably secured to a rotating shaft, such that upon rotation of the cylindrical body a circumferential cut is made in an ice surface by the cutting teeth forming an ice plug which extends into the interior of the cylindrical body;
f. a disk which extends from the second end of the cylindrical body and is movable longitudinally in the interior of the cylindrical body in response to pressure from the ice plug, the disk having a centrally positioned piercing member such that the disk grips the surface of the ice and prevents the second end of the cylindrical body from moving transversely while the cutting teeth are engaging the ice surface; and g. two upwardly extending arcuate teeth pivotally mounted within the interior of the cylindrical body such that the teeth pivot out of the path of an ice plug entering the interior of the cylindrical body but movement of the ice plug in the opposed direction results in the teeth pivoting into a position engaging the ice plug and thereby retaining the ice plug within the interior of the cylindrical body, a release wire being provided for each of the arcuate teeth to retract the teeth such that the ice plug may be removed from the interior of the cylindrical body.
a. a hollow cylindrical body having a first end, a second end and an interior;
b. four cutting teeth secured to the second end of the cylindrical body, each of the cutting teeth having two cutting edges one of which is substantially parallel to the cylindrical body and the other of which is substantially perpendicular to the cylindrical body;
c. a helical flange extending from two of the cutting teeth at the second end toward the first end of the cylindrical body;
d. guides secured to the second end of the cylindrical body to control the amount of ice the teeth can engage;
e. a concentrically aligned coupling secured to the first end of the cylindrical body whereby the cylindrical body may be rotatably secured to a rotating shaft, such that upon rotation of the cylindrical body a circumferential cut is made in an ice surface by the cutting teeth forming an ice plug which extends into the interior of the cylindrical body;
f. a disk which extends from the second end of the cylindrical body and is movable longitudinally in the interior of the cylindrical body in response to pressure from the ice plug, the disk having a centrally positioned piercing member such that the disk grips the surface of the ice and prevents the second end of the cylindrical body from moving transversely while the cutting teeth are engaging the ice surface; and g. two upwardly extending arcuate teeth pivotally mounted within the interior of the cylindrical body such that the teeth pivot out of the path of an ice plug entering the interior of the cylindrical body but movement of the ice plug in the opposed direction results in the teeth pivoting into a position engaging the ice plug and thereby retaining the ice plug within the interior of the cylindrical body, a release wire being provided for each of the arcuate teeth to retract the teeth such that the ice plug may be removed from the interior of the cylindrical body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 577967 CA1329194C (en) | 1988-09-20 | 1988-09-20 | Ice auger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 577967 CA1329194C (en) | 1988-09-20 | 1988-09-20 | Ice auger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1329194C true CA1329194C (en) | 1994-05-03 |
Family
ID=4138757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 577967 Expired - Fee Related CA1329194C (en) | 1988-09-20 | 1988-09-20 | Ice auger |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1329194C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116378564A (en) * | 2023-04-04 | 2023-07-04 | 中国地质大学（北京） | Mechanical cutting-hot melting-hot water injection integrated multi-process ice layer drilling system |
-
1988
- 1988-09-20 CA CA 577967 patent/CA1329194C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116378564A (en) * | 2023-04-04 | 2023-07-04 | 中国地质大学（北京） | Mechanical cutting-hot melting-hot water injection integrated multi-process ice layer drilling system |
| CN116378564B (en) * | 2023-04-04 | 2023-09-22 | 中国地质大学（北京） | Mechanical cutting-hot melting-hot water injection integrated multi-process ice layer drilling system |
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