US3888148A - Saw blade guard - Google Patents

Saw blade guard Download PDF

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Publication number
US3888148A
US3888148A US397450A US39745073A US3888148A US 3888148 A US3888148 A US 3888148A US 397450 A US397450 A US 397450A US 39745073 A US39745073 A US 39745073A US 3888148 A US3888148 A US 3888148A
Authority
US
United States
Prior art keywords
guard
blade
saw
housing
solenoid
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
Application number
US397450A
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English (en)
Inventor
Bernard Weissman
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
IPCO Corp
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to US397450A priority Critical patent/US3888148A/en
Priority to GB5723573A priority patent/GB1416037A/en
Priority to CA187,910A priority patent/CA993324A/en
Priority to DE19742406040 priority patent/DE2406040A1/de
Priority to FR7411222A priority patent/FR2243793B1/fr
Priority to DK285674AA priority patent/DK140129B/da
Priority to CH974474A priority patent/CH581536A5/xx
Priority to SE7411577A priority patent/SE7411577L/xx
Priority to IT53013/74A priority patent/IT1026021B/it
Priority to JP49106602A priority patent/JPS5056682A/ja
Application granted granted Critical
Publication of US3888148A publication Critical patent/US3888148A/en
Assigned to IPCO CORPORATION, A CORP. OF NY reassignment IPCO CORPORATION, A CORP. OF NY ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: WIESSMAN, BERNARD
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
    • B23Q11/0078—Safety devices protecting the operator, e.g. against accident or noise
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D59/00—Accessories specially designed for sawing machines or sawing devices
    • B23D59/006—Accessories specially designed for sawing machines or sawing devices for removing or collecting chips
    • B23D59/0064—Accessories specially designed for sawing machines or sawing devices for removing or collecting chips by suction
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/606—Interrelated tool actuating means and guard means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/707—By endless band or chain knife
    • Y10T83/7226—With means to guard the tension
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/768—Rotatable disc tool pair or tool and carrier
    • Y10T83/7734—With guard for tool
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/95—Machine frame
    • Y10T83/96—Guard

Definitions

  • the guard is in the form of a channel-shaped member disposed in confronting relation and spaced from the blade to present a barrier between the blade and the operatorv
  • the upper portion of the channel member is slidably mounted for vertical movement.
  • the guard member is fully extended in full guard posi tion when the member extends from the housing to a position adjacent the work table and may be manually raised to any desired degree of elevation along the otherwise exposed edge of the blade to thereby provide access to a selected portion thereof for operation on a work piece.
  • an engaging slide member which controllably engages a toothed rack mounted lengthwise on the guard member,
  • the engaging slide member controlled by the solenoid, engages the toothed rack to maintain the guard member at a selected vertical position above the work table when the saw is in operation and releases the guard member and permits the same to drop to the level of the work table under the action of gravity to substantially enclose the blade when the saw is not in operation,
  • the present invention generally relates to protective devices. and more particularly. to a guard member for power saws.
  • a saw blade guard in accordance with the present invention will be described herein which is utilized in a power-operated saw having a vertically disposed saw blade wherein an upper portion ofthe blade is enclosed in a housing and the blade extends through an aperture provided in a generally horixontal work support table disposed below and spaced from said housing and whereby an unconfined portion of the table is disposed between said housing and work table.
  • the saw blade guard of the present invention for forming a barrier between said unconfined portion and an operator comprises an elongated barrier member disposed in confronting relation and spaced from the blade to present a barrier between the blade and the operator.
  • the upper portion of the barrier member is mounted in said housing for vertical movement and is fully extended in full guard position when said member extends from said housing to a posi tion adjacent said work table and may be manually raised to any desired degree of elevation along the otherwise disposed edge of the blade to thereby provide access to a selected portion thereof for operation on the work piece.
  • Locking means are provided for engaging said guard to maintain said enclosure at a selected vertical position above the work table when the saw is in operation and to release said guard and permit the same to drop to the level of the work table under the action of gravity to substantially cover the blade when the saw is not in operation.
  • FIG. I is a front elcvational view of a band saw incorporating the saw blade guard in accordance with the present invention, showing portions of the housing broken away to expose important features of the band saw;
  • FIG. 2 is a perspective view of the saw blade guard of the present invention shown in FIG. 1. showing a control solenoid and slide member forming part of the locking device of the present invention with the upper saw wheel removed;
  • FIG. 3 is a fragmented rear clevational view of the lower portion of the saw blade guard shown in FIGS. 1 and 2;
  • FIG. 4 is a cross-sectional view of the saw blade guard ofthe present invention taken along line 4-4 of FIG. 2, showing the two extreme positions of the guard for exposing and for covering the saw blade portion which acts upon a work piece;
  • FIG. 5 is a fragmented cross sectional view of a guide and bearing provided for the saw blade. taken along 55 in FIG. I;
  • FIG. 6 is an electrical schematic for the circuit which controls the operation of the band saw including the blade guard of the present invention.
  • the band saw includes a U-shaped enclosure I2 which includes upper and lower housings l4. l6 and a lateral connecting housing [8.
  • the general outline of the enclosure is formed by U-shaped channels 20.
  • Mounted on one side of the U-shaped channels is a back or rear wall 22.
  • Hingedly connected to the other side of the U-shaped channels are upper and lower housing doors 24, 26 which can individually be opened to provide access to the upper housing 14 or the lower housing 16 respectively.
  • a work support table 28 generally horizontally dis posed, is provided below and spaced from the upper housing 14.
  • the work support table 28 is provided with an aperture or slot 30 through which a circular saw blade band 32 can extend. as to be more fully described hereafter.
  • a saw wheel 34 which is rotatably mounted on the rear wall 22.
  • the saw wheel 34 can. for example. be made of an elastomeric material such as nylon.
  • a rubber strip of material 36 is provided about the peripheral or circumferential surface of the saw wheel 34 to provide better gripping action for the saw blade 32.
  • Conventional means (not shown) may be provided for raising and lowering the upper saw wheel 34 within predetermined limits to facilitate the mounting of the circular saw blade 32 and fixing the same.
  • the work support table 28 is provided with an extension 38 disposed in front of the connecting housing 18.
  • the extension 38 is removably mounted on the connecting housing 18 in any suitable or conventional manner whereby the platform or work table extension 38 may be removed for mounting the circular blade band 32.
  • a lower wheel 40 which is in the nature of a belt pulley wheel.
  • the pulley wheel 40 can similarly be made of elastomeric material and is similarly provided with a strip of rubber material 36 about its circumferential surface.
  • the two saw wheels 34, 40 are vertically aligned and spaced substantially equal distances from the back or near wall 22 to permit mounting and carrying of the circular saw blade 32 thereon.
  • the lower belt pulley wheel 40 is provided with a groove (not shown) suitable for receiving a pulley belt 42.
  • a motor 44 for driving the band saw 10, the shaft 46 thereof extending through the rear wall 22 and being provided at the end thereof with a belt pulley wheel 48 provided with spaced ridges (not shown) configurated to meshingly engage the ridges (not shown) on the interior of the pulley belt 42.
  • a slot may be provided in the rear wall. through which one of the mounting screws to the motor passes to permit slight movements of the motor shaft 46 relative to a fixed axis on which the bottom saw wheel 40 rotates for tightening the pul ley belt 42.
  • a collecting chamber 50 disposed beneath the slot 30 in the work support table 28.
  • the chamber or compartment 50 is formed by a straight wall portion 52 extending from the work table 28 to the periphery of the wheel 40.
  • a curved wall portion 54 follows the contour of the periphery of the bottom wheel 40. the curved wall portion 54 being provided with an opening 56 which communicates the interiors of the collecting chamber 50 and the lower housing 16 along a circumferential portion of the lower saw wheel 40.
  • a further flat inclined wall portion 58 is provided, which together with the other above de scribed wall portions 52, 54, define the collecting chamber 50.
  • An opening 60 is provided at the lower end of a channel member wall 61 which is suitably connected to a vacuum system, such as a vacuum cleaner. for collecting the dust. shavings and the like which are transmitted into the collecting chamber 50 by the saw blade 32.
  • a vacuum system such as a vacuum cleaner.
  • a guide 62 which is provided with a slot 64 suitable to confine the saw blade 32 and prevent excessive transverse movement of the blade in lateral directions, as shown in FIGS. 1. 4 and 5.
  • a bearing 66 is mounted on the channel member wall 61. the bearing 66 being rotatable to minimize the frictional forces exerted on the saw blade 32 when the latter abuts against the hearing.
  • the bearing 66 is movable to a limited degree in frontward and rearward directions by the provision of a slot (not shown) within the channel member wall 61 through which a supporting screw for the bearing passes.
  • a circular saw blade 32 has an operative portion 70 and a return portion 72.
  • the operative portion 70 extends from and is partially enclosed in the upper housing 14 while the lower end of the operative portion extends through the aperture or slot 30 provided in the generally horizontal work support table 28. Accordingly. there remains an unconfined portion 74 of the blade which is disposed between the housing 14 and the work table 28.
  • An important feature of the present invention is a saw blade guard 80. as to be described. for forming a barrier between the unconfined portion 74 and an operator.
  • the guard comprises an elongate barrier member 82 disposed in confronting relation and spaced from the blade 74 to present a barrier between the blade and the operator.
  • the operative portion of the barrier member is mounted in the upper housing 14 for vertical movement and is fully extended in full guard position when the member 82 extends from the housing to a position adjacent the work table 28.
  • the guard 80 may be manually raised to any desired degree of elevation along the otherwise exposed edge of the blade 74 to thereby provide access to a selected portion thereof for operation on a work piece.
  • FIGSv 24 Examining the presently preferred embodiment of the blade guard in FIGSv 24, this is shown to comprise a generally U-shaped channel or member 84 which includes a slide or face plate 86 and front and rear side guard members 88. 90.
  • the front side guard member 88 is advantageously transparent and made from a material such as Lucite or Plexiglas.
  • the slide or face plate 86 is provided with an elongate slot 92 which runs substantially the entire length thereof.
  • Mounted on the U- shapcd channel 84 and forming part of the upper housing are two stops or bushings 94. 96 which are received within the slot 92.
  • the upper stop 94 is positioned on the U-shaped channel to abut against the upper end of the slot when the lower portions of the guard 80 are just above the work support table 28 and substantially enclose and cover the otherwise unconfined blade portion 74.
  • the lower stop 96 is mounted on the U-shaped channel 84 to engage the lower end of the slot to limit upward movement of the guard 80 when the unconfined portion 74 has been substantially exposed.
  • a support bracket 98 on which a bearing support member [00 is mounted.
  • the bearing support member [00 is provided with horizontal slots 102 which permit slidable movement of the hearing support member I relative to the support bracket 98 for permitting limited lrontward and rearward movement of a bearing I04 (I-'l(i. 4) mounted on the bearing support member.
  • the bearing I04 and the biade guide I06 are similar to the hearing 66 and guide 62 described in connection with the collecting department or chamber 50 and serve the same functions as the latter.
  • the guard member 80 in its lower position wherein the stop 94 engages the upper end of the slot. substantially encloses the unconfined portion of the blade 74 and cffectively forms a barrier between the unconfined portion and an operator.
  • the guard member 80 can be raised by slidable movement thereof along the slot 92 to expose as much or as little of the unconfined blade portion 74 as desired.
  • the face plate 86 when slidably mounted as above described. forms a continuation of the U-shaped channel or side wall I of the upper housing I4. This results in an additional safety feature whereby an operator cannot inadvertently position a finger. for example, into a space which may otherwise result. Also. this continuation provides a finished effect which is aesthetically pleasing.
  • the locking means is provided for engaging the guard 80 to maintain the same at a selected vertical position above the work table 28 when the saw is in operation and for releasing the guard and permitting the same to drop to the level of the work table under the action of gravity to substantially cover the blade 74 when the saw is not in operation.
  • FIGS. I. 2, 4 and 6 A presently preferred locking means is shown in FIGS. I. 2, 4 and 6 wherein an elongate toothed rack 112 is mounted lengthwise of the slot on the face plate 86 in back of the rear side guard member 90.
  • the toothed rack I12 is provided with teeth 114 each having an upper inclined surface and a lower substantially horizontal surface to form a ratchet tooth rack.
  • the toothed rack I12 extends substantially along the entire length of the guard member 80.
  • the solenoid I I6 is provided with a plunger II7 which. in the embodi ment being described. moves towards the right, as viewed in FIGS. 1, 2 and 4. when energized.
  • the sole noid 116 is mounted on a bracket 118. provided with a recess 120 through which an elongate engaging slide member I22 passes.
  • One end of the engaging member is connected to the plunger and the other end of the engaging member extends through a retaining bracket I24 mounted on the rear wall 22 whereby the engaging member 122 is slidably mounted in a direction along its length in response to movements of the plunger II7.
  • the free end of the slide I22 which extends through the retaining bracket I24 is provided with a bent portion I26 and a tip I28 formed by cutting the end ofthe engaging member I22 at a slant to provide a lower in clined edge I30.
  • the pointed tip I28 of the engage ment member I22 is spaced from the rear wall 22 to assure engagement thereof with the teeth ll-I of the rack II2.
  • the angle at which the end of the engaging member is cut advantageously corresponds to the angle of the inclined surfaces of the teeth I14 on the ratchet-type rack 112.
  • the horizontal edge of the slide or engaging member is adapted to engage a respective one of the horizontal teeth surfaces ofthe rack when the engaging member is fully advanced towards the latter
  • the point I28 ofthe engaging member is complementary in configuration to the space formed between a horizontal surface of one tooth and an adjacent inclined surface of another tooth
  • the stroke of the solenoid 116 is selected to cause the pointed end I28 ofthe engagement member I22 to engage the rack I12 when energized while disengaging the slide engagement member from the rack when deenergized.
  • the guard when the solenoid I I6 is deenergized the guard can be slidably moved between its upper and lowermost limits.
  • a fin ger grip I30 is advantageously provided which facili tates the movement of the guard 80.
  • the leads or wires 132 are connectable to the power lines in a conventional manner. Each of the leads is connected to one pole of a double pole switch I34. One of the leads is further connected to a single pole. normally opened switch 136 which serves as a tripping switch for the upper door 24 of the housing 14, as will be more fully described hereafter.
  • the motor 44 is connected to the power lines via the aforementioned switches 134, I36.
  • a transformer 140 Connected in parallel to the motor 44 is the primary winding of a transformer 140, the secondary winding of which is connected to the solenoid 116 coil 142.
  • a diode 144 is connected between the secondary winding and one end of the solenoid coil while a series resistance 146 is connected between the other end of the solenoid coil I42 and the secondary winding.
  • a capacitancc 148 is connected across the series connection of the solenoid coil I42 and the resistance 146.
  • the diode 144 and the capacitance 148 to form a rectification circuit for rectifying the alternating current presented at the secondary winding to convert the same to a dc. current at the solenoid coil I42.
  • the purpose for the series resistance 146 will be described hereafter.
  • the normally open switch 136 is closed when the upper housing door 24 is closed. In this condition, when the main power switch 134 is closed. the motor 44 is energized and the band saw is placed into operation. Simultaneously. the solenoid I16 is energized and the slide engaging member 122 is urged towards the right into engagement with the rack II2.
  • the guard member 80 With the upper housing door 24 closed. and with the main power switch 134 in the off position. the solenoid I16 remains deenergized and the sliding en gaging member 122 is maintained disengaged from the rack 112. Accordingly. an operator may manually slidably move the guard 80 to any desired elevation above the work table 28. As soon as the main power on/off switch 134 is closed and the motor 44 is energized, the solenoid II6 is similarly energized and the sliding engaging member I22 is urged towards the right into engagement with the rack II2. Release of the guard member 80 by the operator does not result in the latter dropping to its lowermost position because of the rack engagement. Therefore, once an operator has selected a desirable elevation for the guide member 80.
  • the holding strength or power of the solenoid llb when energized, or the force with which the slide en gaging member 122 is urged against the rack 112, is a function of the current which llows through the sole noid coil 142.
  • the holding strength can be adjusted.
  • the holding strength of the solenoid 116 is adjusted to permit raising of the guard member 80 against the action of the pointed end I28 of the engagement member 122 wherein the latter successively slidably abuts against the inclined surfaces of the rack teeth 114.
  • a saw blade guard for forming a barrier between said unconfined portion and an operator, said guard comprising an eiongated barrier member disposed in confronting relation and spaced from the blade to present a barrier between the biade and the operator.
  • the upper portion of said barrier member being mounted on said housing for vertical movement and is fully extended in full guard position when said member extends from said housing to a position adjacent said work table and may be manually raised to any desired degree of elevation along the otherwise exposed edge of the blade to thereby provide access to a selected portion thereoffor operation on a work piece; and locking means for engaging said guard to maintain said enclosure at any one of a plurality of discreet selected vertical positions above the work table upon actuation of the saw and to release said guard and permit the same to drop to the level of the work table under the action of gravity to substantially cover the blade when the operation of the saw is terminated.
  • a guard as defined in claim 2 wherein a slot is formed in a side of said barrier member, and stop means fixed on said housing and extending through said slot, wherein vertical movement of said guard is limited by engagement of one of stop means and an end of said slot,
  • a guard as defined in claim I further comprising blade guide means provided at the lower extremity of said guard for containing the blade and preventing excessive transverse movements thereof,
  • said locking means comprises a toothed rack mounted lengthwise on said guard; slidahle engagement means mounted on said housing for engaging said rack in a predetermined position thereof; and circuit means for moving said engagement means to said predetermined position only when the saw is in operation.
  • a guard as defined in claim 13 further comprising an opening in a wall of said collecting chamber suitable to permit coupling thereto of a vacuum hose for drawing away of said shavings and dust and preventing accumulation thereof within said collecting chamber.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sawing (AREA)
US397450A 1973-09-14 1973-09-14 Saw blade guard Expired - Lifetime US3888148A (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
US397450A US3888148A (en) 1973-09-14 1973-09-14 Saw blade guard
GB5723573A GB1416037A (en) 1973-09-14 1973-12-10 Saw blade guard
CA187,910A CA993324A (en) 1973-09-14 1973-12-11 Saw blade guard
DE19742406040 DE2406040A1 (de) 1973-09-14 1974-02-08 Saegemaschine mit abschirmung des saegeblattes
FR7411222A FR2243793B1 (da) 1973-09-14 1974-03-29
DK285674AA DK140129B (da) 1973-09-14 1974-05-27 Beskyttelsesskærm til en båndsav.
CH974474A CH581536A5 (da) 1973-09-14 1974-07-15
SE7411577A SE7411577L (da) 1973-09-14 1974-09-13
IT53013/74A IT1026021B (it) 1973-09-14 1974-09-13 Protezione per lame di sega
JP49106602A JPS5056682A (da) 1973-09-14 1974-09-13

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US397450A US3888148A (en) 1973-09-14 1973-09-14 Saw blade guard

Publications (1)

Publication Number Publication Date
US3888148A true US3888148A (en) 1975-06-10

Family

ID=23571247

Family Applications (1)

Application Number Title Priority Date Filing Date
US397450A Expired - Lifetime US3888148A (en) 1973-09-14 1973-09-14 Saw blade guard

Country Status (10)

Country Link
US (1) US3888148A (da)
JP (1) JPS5056682A (da)
CA (1) CA993324A (da)
CH (1) CH581536A5 (da)
DE (1) DE2406040A1 (da)
DK (1) DK140129B (da)
FR (1) FR2243793B1 (da)
GB (1) GB1416037A (da)
IT (1) IT1026021B (da)
SE (1) SE7411577L (da)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3939749A (en) * 1974-05-27 1976-02-24 Bizerba-Werke, Wilhelm Kraut Kg Band saw
US4356884A (en) * 1981-08-31 1982-11-02 Reynolds Metals Company Acoustical enclosure system
USD349122S (en) 1992-03-16 1994-07-26 Emerson Electric Co. Band saw
US5377571A (en) * 1993-10-19 1995-01-03 Josephs; Harold Safety guard system for band saws and similar equipment
US5938580A (en) * 1994-04-15 1999-08-17 Ranpak Corp. Cushioning conversion machine with restricted access to a cutting assembly
US6047624A (en) * 1998-08-27 2000-04-11 Premark Feg L.L.C. Guide bar guide assembly and associated band saw apparatus
US6240825B1 (en) 1998-08-27 2001-06-05 Premark Feg L.L.C. Guide bar guide assembly and associated band saw apparatus
US6416451B1 (en) 1996-06-28 2002-07-09 Ranpak Corp. Output chute for cushioning conversion machine
US6595097B2 (en) * 2001-07-09 2003-07-22 Oav Equipment & Tools, Inc. Band saw shielding device of band sawing machine
US6691599B2 (en) * 2002-01-11 2004-02-17 P & F Brother Industrial Corporation Cutter guard device for a belt saw machine
US6857347B1 (en) 2003-03-18 2005-02-22 Charles E. Benedict Safety guard for band saws
US20100147125A1 (en) * 2008-12-16 2010-06-17 Georg Stellmann Power tool
US20110000356A1 (en) * 2009-07-06 2011-01-06 Hsuan-Chu Liu Height adjustment device for band saw
US20180243848A1 (en) * 2017-02-28 2018-08-30 Hollymatic Corporation Method and apparatus to monitor and shut down production saw
CN112247283A (zh) * 2020-10-15 2021-01-22 温岭市明华齿轮有限公司 一种双工位自动分度锯齿装置

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2647384B1 (fr) * 1989-04-21 1994-12-02 Inst Nat Rech Securite Scie a ruban comprenant un dispositif de reglage et de protection
FR2689428B1 (fr) * 1992-04-03 1994-07-01 Lutrac Tech Nles Realisa Indle Palier d'adaptation et de fixation instantanee du mecanisme de reglage du guide-lame d'une scie a ruban.

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1749063A (en) * 1927-11-26 1930-03-04 Joseph A Brown Safety device
US2371731A (en) * 1941-06-03 1945-03-20 William B Boice Band saw
US2579955A (en) * 1947-12-16 1951-12-25 Orescan Michael Tiltable table band saw machine
US3104688A (en) * 1960-07-08 1963-09-24 Frank N Bretthauer Band saw guard

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1749063A (en) * 1927-11-26 1930-03-04 Joseph A Brown Safety device
US2371731A (en) * 1941-06-03 1945-03-20 William B Boice Band saw
US2579955A (en) * 1947-12-16 1951-12-25 Orescan Michael Tiltable table band saw machine
US3104688A (en) * 1960-07-08 1963-09-24 Frank N Bretthauer Band saw guard

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3939749A (en) * 1974-05-27 1976-02-24 Bizerba-Werke, Wilhelm Kraut Kg Band saw
US4356884A (en) * 1981-08-31 1982-11-02 Reynolds Metals Company Acoustical enclosure system
USD349122S (en) 1992-03-16 1994-07-26 Emerson Electric Co. Band saw
US5377571A (en) * 1993-10-19 1995-01-03 Josephs; Harold Safety guard system for band saws and similar equipment
US5938580A (en) * 1994-04-15 1999-08-17 Ranpak Corp. Cushioning conversion machine with restricted access to a cutting assembly
US6416451B1 (en) 1996-06-28 2002-07-09 Ranpak Corp. Output chute for cushioning conversion machine
US6047624A (en) * 1998-08-27 2000-04-11 Premark Feg L.L.C. Guide bar guide assembly and associated band saw apparatus
US6240825B1 (en) 1998-08-27 2001-06-05 Premark Feg L.L.C. Guide bar guide assembly and associated band saw apparatus
US6595097B2 (en) * 2001-07-09 2003-07-22 Oav Equipment & Tools, Inc. Band saw shielding device of band sawing machine
US6691599B2 (en) * 2002-01-11 2004-02-17 P & F Brother Industrial Corporation Cutter guard device for a belt saw machine
US6857347B1 (en) 2003-03-18 2005-02-22 Charles E. Benedict Safety guard for band saws
US20100147125A1 (en) * 2008-12-16 2010-06-17 Georg Stellmann Power tool
US8875609B2 (en) * 2008-12-16 2014-11-04 Robert Bosch Gmbh Power tool
US20110000356A1 (en) * 2009-07-06 2011-01-06 Hsuan-Chu Liu Height adjustment device for band saw
US8413563B2 (en) * 2009-07-06 2013-04-09 Hsuan-Chu Liu Height adjustment device for band saw
US20180243848A1 (en) * 2017-02-28 2018-08-30 Hollymatic Corporation Method and apparatus to monitor and shut down production saw
WO2018160621A1 (en) * 2017-02-28 2018-09-07 Hollymatic Corporation Method and apparatus to monitor and shut down production saw
US10710180B2 (en) 2017-02-28 2020-07-14 Hollymatic Corporation Method and apparatus to monitor and shut down production saw
EP3589132A4 (en) * 2017-02-28 2021-01-13 Hollymatic Corporation METHOD AND DEVICE FOR MONITORING AND SHUTDOWN OF A PRODUCTION SAW
CN112247283A (zh) * 2020-10-15 2021-01-22 温岭市明华齿轮有限公司 一种双工位自动分度锯齿装置
CN112247283B (zh) * 2020-10-15 2021-11-23 温岭市明华齿轮有限公司 一种双工位自动分度锯齿装置

Also Published As

Publication number Publication date
JPS5056682A (da) 1975-05-17
IT1026021B (it) 1978-09-20
DE2406040A1 (de) 1975-03-27
GB1416037A (en) 1975-12-03
DK140129C (da) 1979-11-19
CA993324A (en) 1976-07-20
DK285674A (da) 1975-05-12
FR2243793A1 (da) 1975-04-11
FR2243793B1 (da) 1978-01-13
DK140129B (da) 1979-06-25
CH581536A5 (da) 1976-11-15
SE7411577L (da) 1975-03-17

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