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WO1998021013A1 - Lames remplaçables et outils les utilisant - Google Patents

Lames remplaçables et outils les utilisant Download PDF

Info

Publication number
WO1998021013A1
WO1998021013A1 PCT/AU1997/000761 AU9700761W WO9821013A1 WO 1998021013 A1 WO1998021013 A1 WO 1998021013A1 AU 9700761 W AU9700761 W AU 9700761W WO 9821013 A1 WO9821013 A1 WO 9821013A1
Authority
WO
WIPO (PCT)
Prior art keywords
blade
body portion
hand tool
tool according
recess
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.)
Ceased
Application number
PCT/AU1997/000761
Other languages
English (en)
Inventor
Paul Batchelor
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.)
FIRST AUSTRALIA DESIGN TECHNOLOGY
Original Assignee
FIRST AUSTRALIA DESIGN TECHNOLOGY
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
Priority claimed from AUPO3541A external-priority patent/AUPO354196A0/en
Application filed by FIRST AUSTRALIA DESIGN TECHNOLOGY filed Critical FIRST AUSTRALIA DESIGN TECHNOLOGY
Priority to CA002271101A priority Critical patent/CA2271101A1/fr
Priority to EP97911057A priority patent/EP1011930A1/fr
Priority to EA199900435A priority patent/EA001284B1/ru
Priority to JP52194998A priority patent/JP2001503333A/ja
Priority to PL97333233A priority patent/PL333233A1/xx
Priority to AU48568/97A priority patent/AU732375B2/en
Priority to BR9712895A priority patent/BR9712895A/pt
Publication of WO1998021013A1 publication Critical patent/WO1998021013A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27G—ACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
    • B27G17/00—Manually-operated tools
    • B27G17/02—Hand planes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D3/00—Hand chisels

Definitions

  • the present invention relates to replaceable blades as well as tools such as hand planes, gasket scrapers, and chisels utilising such replaceable blades.
  • Wood chisels are primarily designed for tasks associated with wood and usually consist of a shank having a handle at one end and a sharpened cutting edge or tip at the other end. In the normal course of events, wood chisels can come into contact with many materials that will damage the tip of the chisel. Such chisel damage may result from working on timber having obscured nails or adjacent to concrete or masonry surfaces. Also, a wood chisel may be misused by chipping at putty, concrete, slag or mortar, by scraping paint, by opening tins or removing ceramic or vinyl tiles.
  • hand planes which are primarily designed for tasks associated with wood and usually consist of a main body having a handle at each end and which carries a sharpened blade that may be adjusted with respect to a rectangular opening in the sole plate of the main body of the plane.
  • a replaceable blade for a tool comprising a body portion, a cutting edge at one end of the body portion and at least one leg at the other end of the body portion, the or each leg having locking means adapted to engage a complementary-shaped locking recess on the tool to secure the blade to the tool without a separate fastener.
  • a hand tool comprising a blade holder having a recess and a replaceable blade having locking means adapted to engage the recess of the shank for releasably connecting the blade to the blade holder.
  • connection means includes one or more legs on the blade adapted to engage with the recess formed in the blade holder.
  • Fig 1 is a perspective view from above of a hand tool in the form of a chisel according to one embodiment of the invention
  • Fig 2 is a perspective view from below of the chisel shown in Fig. 1
  • Fig 3 is a partially cutaway view similar to Fig. 2 showing the replaceable blade piece separated from the stem of the chisel
  • Fig 4 is an underneath plan view of the chisel shown in Fig. 3
  • Fig 5 is a view similar to Fig. 4 showing the replaceable blade piece connected to the stem of the chisel
  • Fig 6 is a view taken along lines VI-VI of Fig. 5
  • Fig 7 is a view taken along lines VII-VII of Fig. 5,
  • Fig 8 is a partially cutaway underneath view of a chisel according to a second embodiment of the invention
  • Fig 9 is a partially cutaway underneath view of a chisel according to a third embodiment of the invention
  • Fig 1 0 is a partially cutaway underneath view of a chisel according to a fourth embodiment of the invention
  • Fig 1 1 is a view similar to Fig 1 0 of a fifth embodiment of the invention
  • Fig 1 2 is a plan view of a hand tool according to a sixth embodiment of the invention
  • Fig 1 3 is a side view taken along lines A-A of Fig. 1 2,
  • Fig 1 4 is an underside view of the blade and blade holder taken in the direction C-C of Fig. 1 3
  • Fig 1 5 is a plan view taken in the direction of lines B-B of Fig. 1 3
  • Fig 1 6 is a sectional view taken along lines D-D of Fig. 1 5, and
  • Fig 1 7 is a view similar to Fig. 1 3 of a seventh embodiment of the invention. MODES FOR CARRYING OUT THE INVENTION
  • the hand tool 1 0 shown in Fig. 1 is, in this instance, a chisel which has a shank 1 1 , a handle 1 2 and a replaceable blade piece 1 3 locked into a recess 1 4 on the bottom face 1 5 of the shank 1 1 .
  • the blade piece 1 3 has a body portion 1 6, a cutting edge 1 7 at one end of the body portion 1 6 and a pair of spaced apart legs 1 8 and 1 9 at the other end of the body portion 1 6.
  • the blade piece 1 3 may, of course, be connected to any tool.
  • each leg 1 8 and 1 9 is inwardly tapered towards its free end and the space between the legs 1 8 and 1 9 defines a locating recess 20.
  • first edge 22 adjacent the cutting edge 1 7 there is a first edge 22 adjacent the cutting edge 1 7, a second inwardly directed bevelled edge 23 and a third bevelled edge 24 at the body portion 1 6.
  • An aperture 25 is provided in the body portion 1 6 for receiving the end of a punch or similarly pointed instrument when the blade piece 1 3 is to be removed from the shank 1 1 .
  • the recess 14 is of a shape that is complimentary to that of the blade piece 1 3 and on each side is a first inwardly bevelled edge 26 at its open end and a second longitudinally extending bevelled edge 27 terminating at leg-receiving passageways 28 and 29 dimensioned to receive the legs 1 8 and 1 9 respectively.
  • a guide piece 30 adapted to mate in the locating recess 20 of the blade piece 1 3.
  • each passageway 28 and 29 there is an outwardly directed notch 31 of generally semi-circular form adapted to mate with the locking module 21 of each leg 1 8 and 1 9.
  • the blade piece 1 3 In order to connect the blade piece 1 3 to the recess 1 4, the blade piece 1 3 is partially placed into the recess 1 4 by manually holding both the blade piece 1 5 and the shank 1 1 together and then resting the cutting edge 1 7 on a piece of wood or similar non-damaging material with the blade piece 1 3 and the shank 1 1 in a vertical position. Pressure is then exerted by placing the other hand on the handle 1 2 and manually pushing downwards to complete the location of the legs 1 8 and 1 9 in the passageways 28 and 29.
  • the legs 1 8 and 1 9 are slightly narrower than the passageways 28 and 29 to provide a clearance 32 when the legs 1 8 and 1 9 are fully located in the passageways 28 and 29.
  • the clearance 32 allows the legs 1 8 and 1 9 to spring inwards towards the guide piece 30 during a push fit.
  • the locking nodules 21 initially make contact with the tapered edge 33 of each passageway 28 and 29 and deflect the legs 1 8 and 1 9 inwardly until the legs 1 8 and 1 9 are fully located in the passageways 28 and 29 when the locking nodules spring outwardly to achieve a tight fit in the locking notches 31 .
  • the shank 1 1 is fabricated from a high grade quality carbon steel giving the shank some flexibility as well as hardness and durability.
  • the blade piece 1 3 is also fabricated from high grade quality carbon steel so treated to allow flexing of the legs 1 8 and 1 9.
  • the blade piece 1 3 is strongly connected and locked into the recess 14 as the legs return to their original or free position after being deformed as they move into the passageways 28 and 29.
  • the blade piece 1 3 is locked into the recess 1 4 of the shank 1 1 without any additional mechanical fixing component.
  • the blade piece 1 3 may be removed by applying a force via a punch or similarly pointed instrument at the aperture 25 as mentioned above.
  • the action of removing a blade piece 1 3 and inserting a new blade piece 1 3 can be completed in a matter of seconds.
  • a range of sizes of cutting edges 1 7, 1 7a and 1 7b of the blade piece 1 3 may be accommodated by the same shank as indicated in Fig. 4.
  • the outwardly bevelled edges 24 of the body portion 1 6 of the blade piece 1 3 are a push fit in the longitudinally extending bevelled edges 27 of the recess 1 4.
  • This configuration of blade connection disperses any fragments of waste timber thus preventing such waste from entering and lodging in the space between the blade piece 1 3 and the recess 1 4.
  • the blade piece 1 3 has only one lug 1 8 and the recess 1 4 of the shank 1 1 has only one leg-receiving passageway 28.
  • the locking nodule 21 seats in the locking notch 31 as with the other embodiment of the invention.
  • the locking arrangement of the nodules 21 and the notches 31 is replaced by a stud or dowel 35 upstanding from the base of the recess 1 4 which, when the blade piece is fully in place, engages in notches 40 and 41 in the legs 1 8 and 1 9.
  • the dowel 35 forces the legs 1 8 and 1 9 apart in much the same way as the legs 1 8 and 1 9 of the first embodiment are pushed together by the incline face 33 of the leg receiving passageways 28 and 29 of the first embodiment.
  • the dowel 40 is so located in the recess 41 that it seats at the body end of the legs 1 8 and 1 9.
  • a tab 42 at the end of the blade piece 1 3 is bent downwards by a pointed instrument and seats in a recess 43 formed in the shank 1 1 .
  • the invention may by applied to other hand tools such as gasket scrapers which have a blade or scraper working portion like that of a chisel.
  • the hand plane 1 1 0 shown in Figs. 1 2 to 1 7 includes a main body 1 1 1 having a sole plate 1 1 2, an upwardly directed boss 1 1 3, side walls 114 and transverse walls 115.
  • a front hand grip 116 secured to the main body 111 by screw 117
  • a rear hand grip 118 secured to the main body by screw 119.
  • the boss 113 which is located between the side walls 114 has a first inclined face 120 and a second inclined face 121 over which seats a cover 122 that is secured to the boss 113 by screw 123.
  • the legs 127 have outwardly directed locking lugs 129 which engage in similarly shaped locking recesses 130 in the recesses 128.
  • the legs are forced together and when fully home the locking lugs 129 engage the locking recesses 130 as can be seen in Fig. 14.
  • the holder 126 In order to connect the disposable blade 125 to the holder 126, the holder 126 is removed from the plane 110 and the legs 127 partially placed into the recesses 128 by manually holding both the disposable blade 125 and the blade holder 126. The cutting edge of the disposable blade 125 is then placed on a piece of wood or similar non-damaging material with the disposable blade 125 and the blade holder 126 in a vertical position. Pressure is then exerted by manually pushing downwards on the blade holder 126 to complete the location of the legs 127 in the recesses. In this instance, the disposable blade 125 has an elongated slot 131 in which is located a pivot dowel 132.
  • a finger hole 133 is provided in the upper end of the blade holder 126 to assist in the adjustment of the blade 1 25 as will be described below.
  • the disposable blade 1 25 may be secured to the blade holder 1 26 by a screw 1 32a as shown in Fig. 1 7.
  • a support plate 1 34 is secured to the main body 1 1 1 by screws 1 35 as can be seen in Fig. 1 5.
  • the support plate 1 34 carries an adjustment screw 1 36 having a knob 1 37 and which is threaded through nut 1 38 on the underside of the support plate 1 34.
  • the blade holder 1 26 In order to square up the edge of the replaceable blade 1 25 in the rectangular opening 1 24, the blade holder 1 26 is moved to the left or right by a finger inserted in the hole 1 33. The replaceable blade will pivot on either the screw head or the dowel so once the blade edge protrudes from the sole of the plane to the required cutting depth and is square with respect to the rectangular opening 1 24, the blade holder 1 26 is tightened down by rotating the knob 1 37.
  • the main body 1 1 1 and the front and rear hand grips 1 1 6 and 1 1 8 are made of a suitable plastics material.
  • the disposable blade is made from hardened and tempered carbon steel and the blade holder 1 26, support plate 1 34 and adjustment screw 1 36 are made of mild steel.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Knives (AREA)
  • Toys (AREA)

Abstract

Lame remplaçable (13) maintenue en place par l'accouplement réciproque d'un nodule de verrouillage (21) situé sur un montant (18) de ladite lame (13) et d'une encoche de verrouillage (31) située sur le support de lame (11) d'un outil sans qu'il soit nécessaire d'utiliser un élément de fixation séparé. Un outil à main (10) possède un support de lame (11) et la lame remplaçable (13) est conçue pour loger dans un évidement (14) dans ledit support (11).
PCT/AU1997/000761 1996-11-08 1997-11-10 Lames remplaçables et outils les utilisant Ceased WO1998021013A1 (fr)

Priority Applications (7)

Application Number Priority Date Filing Date Title
CA002271101A CA2271101A1 (fr) 1996-11-08 1997-11-10 Lames remplacables et outils les utilisant
EP97911057A EP1011930A1 (fr) 1996-11-08 1997-11-10 Lames rempla ables et outils les utilisant
EA199900435A EA001284B1 (ru) 1996-11-08 1997-11-10 Сменные режущие пластины и инструменты с их использованием
JP52194998A JP2001503333A (ja) 1996-11-08 1997-11-10 交換可能な刃及びその刃を使用している工具
PL97333233A PL333233A1 (en) 1996-11-08 1997-11-10 Replaceable blades and tools with replaceable blades
AU48568/97A AU732375B2 (en) 1996-11-08 1997-11-10 Replaceable blades and tools utilising same
BR9712895A BR9712895A (pt) 1996-11-08 1997-11-10 Laminas substituiveis e ferramentas manuais para sua utilização

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
AUPO3541 1996-11-08
AUPO3541A AUPO354196A0 (en) 1996-11-08 1996-11-08 Hand plane with replaceable blade
AU12297/97A AU1229797A (en) 1996-11-08 1997-01-24 Hand tools with replaceable tips
AU12297/97 1997-01-24

Publications (1)

Publication Number Publication Date
WO1998021013A1 true WO1998021013A1 (fr) 1998-05-22

Family

ID=25614783

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU1997/000761 Ceased WO1998021013A1 (fr) 1996-11-08 1997-11-10 Lames remplaçables et outils les utilisant

Country Status (9)

Country Link
EP (1) EP1011930A1 (fr)
JP (1) JP2001503333A (fr)
CN (1) CN1237123A (fr)
AU (1) AU1229797A (fr)
BR (1) BR9712895A (fr)
CA (1) CA2271101A1 (fr)
EA (1) EA001284B1 (fr)
PL (1) PL333233A1 (fr)
WO (1) WO1998021013A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2437139A (en) * 2006-04-12 2007-10-17 Joe Costello Carpenter's plane with hardened disposable blade
GB2472154A (en) * 2010-09-13 2011-01-26 Simon Hackett Chisel with removable blade element
EP2374579A1 (fr) * 2010-04-08 2011-10-12 Samvaz S.A. Ciseau à bois et lame pour ciseau à bois
ITBZ20110010A1 (it) * 2011-03-22 2012-09-23 Peter Resch Utensile per la lavorazione di legno, in particolare al tagliente per pialla o scalpello.

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102941614B (zh) * 2012-10-10 2014-10-08 浙江工业职业技术学院 可更换刀头的油泥刮刀
CN106863505A (zh) * 2016-12-31 2017-06-20 广州巨茗自控技术有限公司 一种木材开槽装置
KR102288660B1 (ko) * 2020-07-08 2021-08-10 박천일 날 교체형 스크레이퍼
CN112388763A (zh) * 2020-11-12 2021-02-23 刘志远 一种免磨替换式木工凿

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2213095A (en) * 1937-10-21 1940-08-27 Sargent & Co Plane iron
CH286407A (de) * 1950-08-21 1952-10-31 Schulthess Walter Meisselartiges Werkzeug.
DE2455813A1 (de) * 1973-11-28 1975-06-05 Jacobs Mfg Co Handwerkszeug
GB1429297A (en) * 1972-09-05 1976-03-24 Jacobs Mfg Co Methods of making woodchisels
EP0148546A1 (fr) * 1984-01-11 1985-07-17 The Stanley Works Limited Ciseau à main

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2213095A (en) * 1937-10-21 1940-08-27 Sargent & Co Plane iron
CH286407A (de) * 1950-08-21 1952-10-31 Schulthess Walter Meisselartiges Werkzeug.
GB1429297A (en) * 1972-09-05 1976-03-24 Jacobs Mfg Co Methods of making woodchisels
DE2455813A1 (de) * 1973-11-28 1975-06-05 Jacobs Mfg Co Handwerkszeug
EP0148546A1 (fr) * 1984-01-11 1985-07-17 The Stanley Works Limited Ciseau à main

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2437139A (en) * 2006-04-12 2007-10-17 Joe Costello Carpenter's plane with hardened disposable blade
EP2374579A1 (fr) * 2010-04-08 2011-10-12 Samvaz S.A. Ciseau à bois et lame pour ciseau à bois
US8869404B2 (en) 2010-04-08 2014-10-28 Samvaz S.A. Wood chisel and blade for a wood chisel
US9095967B2 (en) 2010-04-08 2015-08-04 Samvaz S.A. Wood chisel and blade for a wood chisel
GB2472154A (en) * 2010-09-13 2011-01-26 Simon Hackett Chisel with removable blade element
ITBZ20110010A1 (it) * 2011-03-22 2012-09-23 Peter Resch Utensile per la lavorazione di legno, in particolare al tagliente per pialla o scalpello.

Also Published As

Publication number Publication date
AU1229797A (en) 1998-05-14
EA199900435A1 (ru) 1999-12-29
CA2271101A1 (fr) 1998-05-22
JP2001503333A (ja) 2001-03-13
BR9712895A (pt) 2000-03-21
PL333233A1 (en) 1999-11-22
EP1011930A1 (fr) 2000-06-28
EA001284B1 (ru) 2000-12-25
CN1237123A (zh) 1999-12-01

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