WO1987002314A1 - Regle a araser et niveau extensibles - Google Patents

Regle a araser et niveau extensibles Download PDF

Info

Publication number
WO1987002314A1
WO1987002314A1 PCT/AU1986/000294 AU8600294W WO8702314A1 WO 1987002314 A1 WO1987002314 A1 WO 1987002314A1 AU 8600294 W AU8600294 W AU 8600294W WO 8702314 A1 WO8702314 A1 WO 8702314A1
Authority
WO
WIPO (PCT)
Prior art keywords
tool
straight edge
arm
length
plug
Prior art date
Application number
PCT/AU1986/000294
Other languages
English (en)
Inventor
Norman Ernest William Kruse
Original Assignee
Abercon Pty. Ltd.
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 Abercon Pty. Ltd. filed Critical Abercon Pty. Ltd.
Publication of WO1987002314A1 publication Critical patent/WO1987002314A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25H—WORKSHOP EQUIPMENT, e.g. FOR MARKING-OUT WORK; STORAGE MEANS FOR WORKSHOPS
    • B25H7/00—Marking-out or setting-out work
    • B25H7/02—Plates having a flat surface
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B3/00—Measuring instruments characterised by the use of mechanical techniques
    • G01B3/02—Rulers with scales or marks for direct reading
    • G01B3/04—Rulers with scales or marks for direct reading rigid
    • G01B3/08—Rulers with scales or marks for direct reading rigid extensible
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C9/00—Measuring inclination, e.g. by clinometers, by levels
    • G01C9/18—Measuring inclination, e.g. by clinometers, by levels by using liquids
    • G01C9/24—Measuring inclination, e.g. by clinometers, by levels by using liquids in closed containers partially filled with liquid so as to leave a gas bubble
    • G01C9/26—Details
    • G01C9/28—Mountings

Definitions

  • This invention relates to an improved tool particularly, but not exclusively, for builders or like tradesmen or handymen.
  • an improved tool comprising: a first part with a straight edge and a second part with a straight edge, said first part and said second part being retainable to each other and being relatively movable to each other so that the overall length of said first part and said second part can be varied whilst maintaining a straight edge between said. first part and said second part.
  • an improved tool comprising a first part and a second part, said first part and said second part being retainable to each other and being relatively movable to each other so that the overall length of said first part and said second part can be varied and level read out means mounted to at least one of said first part or said second part for permitting said tool to be used as an expanding level.
  • the tool includes length read out means for indicating the extended length of the tool.
  • the tool prefferably has a head with an arm swingably supported to said head whereby angles can be measured.
  • angle graduation read out means are provided for enabling the angle of the arjn of the head relative to the tool to be given.
  • Figure 1 is a plan view of a preferred embodiment of a tool in accordance with the present invention and wherein the tool is in a partly extended position;
  • Figure 2 is a perspective exploded view of the first part of the tool
  • Figure 3 is a perspective part exploded view of the second part of the tool
  • Figure 4 is a transverse cross-sectional view of the tool through section 4-4 of Figure 1 when the tool is in a non-locked condition;
  • Figure 5 is a transverse cross-sectional view along section 5-5 of Figure 1;
  • Figure 6 is a transverse cross-sectional view along section 6-6 of Figure 1 when the tool is in a locked condition;
  • Figure 7 is a sectional view along section line 7-7 shown in Figure 1;
  • Figure 8 is a transverse cross-sectional view along section 8-8 of Figure 1 showing a pencil fitted to the tool for use in scribing circles;
  • Figure 9 is a plan view of the tool showing an attachment in the form of a head for measuring angles
  • Figure 10 is a part perspective view of the tool showing an arm detached from the head;
  • Figure 11 is a perspective view in exploded form of the head;
  • Figure 12 is a sectional view along section 12-12 of Figure 9;
  • Figure 13 is a longitudinal sectional view similar. to that of the view shown in Figure 12, but showing detail of the head in a locking mode where the angle of the arm of the head can be locked at a desired position;
  • Figure 14 is a view similar to that of Figure 13 but showing the head in an unlocked arm mode;
  • Figure 15 is a sectional view along section 15-15 shown in Figure 14;
  • Figure'16 is a sectional view along section 16-16 shown in Figure 14;
  • Figure 17 is a detailed perspective view of part of an arm of the head shown in Figure 11;
  • Figure 18 is a plan view of the view shown in Figure 17;
  • Figure 19 is a sectional view along section 19—19 in Figure 18;
  • Figure 20 is an exploded close-up perspective view of the detail 20 shown in Figure 10;
  • Figure 21 is a plan view of the tool showing two heads fitted thereto for measuring angles at each end of the tool;
  • Figure 22 is a sectional view along section 22-22 shown in Figure 21;
  • Figure 23 is a sectional view similar to that of
  • Figure 24 is a perspective view of an end of the tool showing fitting of an extension to the tool to increase its overall length.
  • FIG. 1 there is shown a plan view of the tool in a partly extended condition.
  • the tool has a first part 1 (hereinafter referred to as base 1) and a second part 3, (hereinafter referred to as top 3).
  • the base 1 has a nose 5 at one end and the top 3 has a nose 7 at the opposite end.
  • the nose 5 has an end cap 9 and nose 7 has an end cap 11.
  • the base 1 and the top 3 are of extruded aluminium.
  • the nose 5 and the nose 7 are each fabricated from parts of the extrusions of the base 1 and the top 3 as will hereinafter be fully explained.
  • the end caps 9 and 11 are typically of a synthetic plastics material such as polyethylene.
  • the length of the tool can be changed by relatively moving the base 1 and the top 3 longitudinally of each other. It can be seen that length read out means 13 is provided on the base 1 so that when the base 1 and top 3 are moved to extend the overall length of the tool, a person using the tool can be given an indication of the extended length. As shown in Figure 1, there are four different length read out means 13. If desired, only one length read out means 13 can be provided. Four are shown so as to enable lengths to be • displayed in inches and centimetres between the end faces of the end caps 9 and 11, and/or the radius , as will be described in due course, when the tool is used for scribing an arc or a circle or when the tool is used as a parallel marking gauge.
  • Locking means 15 is provided so that the tool can be locked in any desired extended position.
  • Level read out means 17 is provided in the nose 5 and in the nose 7.
  • Level read out means 19 is also provided in the top 3.
  • Level read out means 17 is primarily used for indicating vertical orientation of the tool whilst level read out means 19 is primarily used for indicating horizontal orientation of the tool.
  • Level read out means 17 is viewable from both faces i.e. the top and the bottom of the tool, whilst level read out means 19 is also viewable from two sides of the tool i.e. from the top face, and from one side face.
  • the base 1 has a somewhat top hat shaped cross-section and that the top 3 has a somewhat C shaped cross-section.
  • the base 1 has a pair of longitudinally extending rails 21 along the side edges whilst the top 3 has a pair of longitudinally extending grooves 23 which align with the rails 21 and in effect provide rail riders when the top 3 is fitted to the base 1.
  • the base 1 and the top 3 can track relative to each other when they are extended or retracted.
  • the base 1 has straight edge surfaces 25 and the top 3 also has straight edge surfaces 27 which are in line with each other.
  • the straight edge surfaces 25 and 27 remain in line and straight relative to each other as the tool is extended and/or retracted in length.
  • the two sections When the top 3 is fitted to the base 1, the two sections define a box like beam section which provides for a substantially rigid structure. Also the configurations of each of the top 3 and base 1 provide strength to the sections such that when the tool is extended, blows to the side edges of any of the sections will be unlikely to cause deformation and thus incorrect tracking of the top 3 and the base 1.
  • end plug 29 (see Figure 3) comprises a generally planar shaped end 37 which has an external peripheral shape as shown in Figure 3.
  • a pair of webs 39 and 41 extend perpendicularly from an inside or rear face of the planar shaped end 37.
  • Web 41 has longitudinally extending beads 43 along each side edge.
  • Web 39 has a pair of longitudinally extending beads 45 on each side edge. Beads 45 are rectangular in cross-section whilst beads 43 are generally circular in cross-section.
  • a web 47 extends longitudinally but transversely of the webs 39 and 41 and holds the webs 39 and 41 in generally parallel spaced apart relation. End plug 29 is positively held to the top ⁇ 3 by the beads 45 firmly and force fittingly locating within the grooves 33.
  • the beads 43 on the web 41 are arranged to slidingly engage in the groove 33 in the base 1.
  • End plug 31 (see Figure 2) has a planar shaped end 49, the peripheral shape of which is as shown and which corresponds generally to the upper surface configuration of base 1.
  • a pair of webs 51 and 53 extend transversely from the planar shaped end 49.
  • Webs 53 have a pair of beads 55 along the side edges whilst web 51 has a pair of beads 57 along the side edges.
  • Beads 55 correspond in shape to the beads 45 on end plug 29 whilst beads 57 correspond in shape to the beads 43 on the end plug 29.
  • a web 59 is provided between the webs 51 and 63 to hold them in parallel spaced apart relation. Accordingly, end plug 31 is located into the base 1 by the beads 55 positively force fittingly locating within the grooves 35.
  • end plug 29 has rail riding cut-out grooves 61 therein and that end plug 31 has upstanding lugs 63 which correspond to the rails 21.
  • the upstanding lugs 63 stand slightly proud of the rails 21 whilst the cut-out grooves 61 extend slightly proud of the grooves 23.
  • the tool can be clamped in any desired extended position by means of the locking means 15.
  • the locking means 15 is shown in exploded form in Figure 3 and in sectional view in Figure 5. It has a sliding toggle 65 and a clamping plate 67.
  • the clamping plate is rectangular and has two flanges 69 along the side edges. The flanges 69 are arranged to locate within grooves 33 in the base 1 .(as shown in Figure 5) .
  • a circular shaft 71 extends centrally of the clamping plate 67 and has a rectangular shaped bar 73 integrally formed thereon and arranged transversely across the length of the clamping plate 67.
  • The- sliding toggle 65 comprises a base part 75 of elongate configuration with upstanding finger engaging arms 77 at each end.
  • the upper surface of the base 75 provides two ramp surfaces 79, one on each side of a central position 81.
  • An elongate slot 83 is provided centrally along the length of the base 75 and is arranged for receiving the circular shaft 71 of the clamping plate 67.
  • the top 3 has a cut-out 85 at one end to enable the rectangular bar 73 and the circular shaft 71 of the clamping plate 67 to pass therethrough.
  • the cut-out 85 has an appropriate shape to enable the bar 73 and the shaft 71 to pass therethrough.
  • the bar 73 is then passed through the elongate slot 73 of the sliding toggle 65, and then the clamping plate 67 is angularly rotated back to the orientation shown in Figure 3 which causes the bar 73 to locate in the central position 81 within the two ramp surfaces 79 on each side of the bar 73.
  • the top 3 can be assembled to the base 1 by allowing for the flanges 69 of the sliding toggle 65 to locate within the grooves 33 in the base 1.
  • the undersurface of the rectangular bar 73 is slightly rounded so as to enable smooth displacement of the sliding toggle 65 longitudinally of the top 3 to, in turn, cause the clamping plate 67 to be raised towards the top 3 to, in turn, cause the base 1 to be carried by the flanges 69 to move the base 1 to clampingly engage relative to the top 3.
  • the sliding toggle 65 can be moved either to the left or the right to effect the clamping.
  • the straight edge surfaces 25 of the base 1 and the straight edge surfaces 27 of the top 3 are brought into close aligned relationship by virtue of the wedge like configurations of the rails 21 and the grooves 23.
  • the arrangement is such that there will be self centering of the top 3 relative to the base 1 so that the respective straight edge surfaces 25 and 27 will a_.ign.
  • Figure 6 shows an exaggerated arrangement of the pair of webs 39 and 41 on the end plug 29 when the locking means 15 is operated to clamp the tool in a desired extended position.
  • the pair of webs 39 and 41 are bowing convexly whereas in Figure 4 there is bowing concavely.
  • the bowing concavely as depicted in Figure 4 provides sufficient frictional forces between the engagement of the base 1 relative to the top 3 so that if the tool is held upright the top 3 will not unintentionally move relative to the base 1.
  • the frictional forces provided are such that the top 3 can be manually moved very easily relative to the base 1.
  • the nose 5 on the base 1 is formed from a short length of the same extrusion material from which the top 3 is made.
  • the end cap 9 is made to be retained to the nose 5 by means of L shaped arms 87 moulded integrally therewith, locating in elongate transversely extending cut-outs 89 in the top 3 and the base 1. Iri ' this connection the foot 91 of the L shaped arms 87 passes through the cut-outs 89 and projects upwardly above the upper surface of the top 3 and below the lower surface of base 1, as will be discussed in due course.
  • the peripheral shape of the end cap 9 follows the contour of the section of the top 3 and the base 1 as shown in Figure 2. It is noted that the end face of the end cap 9 has a plurality of grooves 93 therein to provide for good seating of the tool against a surface.
  • Figure 3 shows how the nose 7 is formed at the opposite end to nose 5, but on the top 3.
  • a short length of • the base extrusion 1 is provided to form the material on the undersurface of the nose 7. This is not clearly shown in Figure 3 because of the angle of the projection.
  • the end cap 11 is of identical construction to the end cap 9 and the foot 91 on each of the L shaped arms 87 passes through elongate transversely extending cut-outs 93.
  • Each of the feet 91 passes through the cut-out 93 to extend above the upper surface of the top 3 and below the lower surface of the base 1 as will be explained in due course.
  • the inner most end of the nose 5 of the tool is closed by a plug 95 which has a peripheral shape which conforms to the outer surface of the nose section 5 at that location.
  • Lugs 97 are provided on the inner face of the plug 95 so as to enable the plug 95 to be force fitted into the space defined by the sections of the nose 5.
  • the inner most end of the nose 7 is closed by -a plug 99 which has an external peripheral shape to conform to that of the space defined by the sections of the nose 7.
  • Plug 99 has similar lugs 97 to that of plug 95 and these enable the plug 99 to be held to the nose 97.
  • the lugs on plug 99 have not be shown because of the angle of the projection shown in Figure 3.
  • the nose 7 has an undersurface which will hold the top 3 at the same elevation above” a surface on which the tool is resting when in an extended condition as that portion of the top 3 which overlies the base 1.
  • the tool will be able to be maintained steady on a surface when it is in an extended condition.
  • Level read out means 17 in the form of vials 101 are provided in each of the noses 5 and 7.
  • the level read out means 17 in each of the nose 5 and 7 are identical.
  • the level read out means is shown in exploded form and it can be seen that there is provided an upper casing part 103 and a lower casing part-105.
  • the upper and lowing casing parts 103 and 105 are substantially identical and each comprises a rectangular shaped body portion 107 with a flange 109 at one end. Opposed sides of the body portion 107 are provided with arcuate cut-outs 111 but the radially innermost portion of the cut-outs 111 has a very thin flange section, not clearly shown in the drawings. The purpose of .this will be described in due course.
  • the end surfaces of the body portion 107 remote from the flanges 109 contains a stepped surface 113 on upper casing part 103 and a correspondingly opposite stepped surface 115 on body portion 107. Rectangular shaped cut-outs 117 are provided in the extrusions and the upper casing part 103 is then assembled to the lower casing part 105 with the vial 101 therebetween.
  • the stepped surfaces 113 and 115 have snap locking means (not shown) so that they can be held together and hold the metal extrusions of the noses 5 and 7 in place whilst at the same time holding the vials 101 secured.
  • the vials 101 are supported by the thin flange sections (referred to above) which are on the radially innermost edges of the cut-outs 111.
  • FIG. 7 shows the assembled cross-sectional relationship of the components of the level read out means 17.
  • Level read out means 19 is shown in Figure 3 and essentially comprises a vial 101 held within plastics mounting supports 121.
  • the mounting supports 121 have bases 123 with semi-circular sockets 125 formed integrally thereon.
  • the vial 101 is located within the sockets 125.
  • the length of the bases 123 is such that they can locate within grooves 127 on the inside surface of a side edge of the top 3.
  • the fitting is a force fit and accordingly the mounting supports 121 can be slid along to positions corresponding to aligned vial viewing cut-outs 129 in the top surface and side surface of the top 3. It can be seen that the tool as described so far comprises an extendable straight edge and extendable leveling device.
  • the preferred embodiment of the tool also has a feature to enable it to permit circles to be scribed.
  • an aperture 131 at each end of the tool.
  • a pencil or like marking means can be inserted into one of the apertures 131 and a rod or other point providing object can be inserted in the other of the apertures 131.
  • the tool can then be extended to a desired length and used to scribe circles.
  • the apertures 131 are of diamond shape so that when a hexagonal pencil or the like is inserted therethrough it can be urged into one of the corners of the cut-out 131 to positively locate it.
  • the L shaped arms 87 are urged by a generally V shaped spring steel spring means 133 outwardly so that the feet 91 are urged outwardly through the cut-outs 89.
  • the L shaped arms 87 have circular apertures 135 therethrough which align with the . apertures 131.
  • the spring means have arcuate shaped surfaces 139 which terminate with upstanding lugs 141.
  • the lugs 141 may be located in respective locating slots (not shown but on the inside surfaces of the arms 87) and the spring means 133 is dimensioned such that it will provide an outwardly directed force onto the L shaped arms 87.
  • the arcuate surfaces 139 are arranged to engage with a pencil or like object inserted through the apertures 131 and grip the pencil or like object and urge it into one of the corners of the diamond shaped apertures 131.
  • This " is clearly shown in Figure 8 where the side edge of a pencil 143 is caused to engage with the arcuate surfaces 139 and urge the pencil towards the left hand side of the tool as shown in Figure 8.
  • a pencil or like marker can be inserted into either of the apertures 131, and a corresponding point providing means inserted in the other of the apertures 131 and held in a similar manner to that of the pencil, so that arcs or circles can be scribed.
  • the length read out means 13 can be arranged so that one of the scales will show the extended length of the tool across the end of the end caps 9 and 11, whilst another of the scales can show the extended length for use when providing circles, i.e. the length between the centres of the apertures 131. It should be noted that each of the top 3, and base 1 is provided with reliefs 145 (see Figure 8) to assist in the good seating of the tool when drawing straight edges or leveling.
  • the tool is able to have a head 147 attached thereto so that angles can be measured relative to the straight edge surfaces 25 and 27.
  • Figures 9 through 20 show detail of the head 147.
  • Figure 11 shows part of the detail of the head 147 in exploded perspective view.
  • the head 147 comprises a body part 149 formed from a plastics material casting 151 and a base 153 formed from a portion of the section material from which the base 1 of the tool is provided.
  • the die casting 151 is therefore, a closed generally rectangular box with an open base and an open end which is closed by a plastics material plug 155.
  • the plastics material plug 155 is arranged with lugs 157 on the inside surface so that it can be held to the open end of the die casting 151.
  • the lugs 157 are only shown in Figure 11 and there they are only partly shown because of the angle of projection. It can be seen that the plug 155 is angled at one side edge to follow a corresponding angle which is provided on the casting 151.
  • the plug 155 is provided with grooves 160 in a similar manner to the grooves 93 on the end caps 9 and 11. Casting 151 and base 153 are held together by the base 153 locating in a cut-out (not shown) in the end face 159 of casting 151 and in a similar cut-out 161 in plug 155 and by snap locking of lugs (not shown) on the inside of the casting 151 with the base 153.
  • the base 153 extends through the end face 159 and through the plug 155.
  • the body part 149 has an arm 163 swingably supported thereto.
  • the arm 163, in turn, carries an elongate arm 165 which can be caused to slide longitudinally of arm 163.
  • the elongate arm 165 also carries a further elongate arm 167 which can slide relative to elongate arm 165.
  • the arm 163 is provided with three pointers i.e. corners, 169 each angularly spaced 90° from each other around the central axis of swinging of arm 163.
  • Angle read-out means 171 in the form of a scale is provided on the casting 151 and depending on which of the pointers 169 is across the scale 171, then a reading can be given as to the angle of the arm 163 relative to the straight edge surfaces 25 and 27 on the tool.
  • the arm 163 is provided for angular click stopping positioning or for free swinging positioning.
  • the undersurface of the arm 163 is moulded with a downwardly extending circular collar 173 and the lowermost edge surface thereof is provided with a plurality of equally spaced serrations 175.
  • An axle 177 is also moulded integrally with the arm 163.
  • the axle 177 has a circlip groove 179 adjacent the free end.
  • the casting 151 is moulded with a sleeve portion 181 in which the axle 177 can be received. It is also moulded with an annular depression-183 in which the collar 173 can be received.
  • An opening 185 is provided in the upper surface of the casting 151 between the centre of the sleeve portion 181 and the outer extent of the annular depression 183 in a direction extending longitudinally of the casting 151 and in line with the central longitudinal axis of the tool to which the head 147 is to be attached which locates in opening 190 in body part 149.
  • An expanding washer 187 of a synthetic plastics material is provided with a downwardly extending spigot 189.
  • a wedge shaped passageway 191 is provided in the expanding washer 187 diametrically opposite the spigot 189.
  • the arm 163 can be locked in any desired angular position by sliding movement of a locking bar 193.
  • the locking bar 193 is provided with a base part 195 with a finger gripping portion 197 at one end and a wedge shaped upstanding finger 199 at the opposite end.
  • the wedge shaped upstanding finger 199 is arranged to locate within the wedged shape passageway 191 of the . expanding washer 187 and cause it to radially expand as the locking bar 193 is moved away from the casting 151 of the head ' 147. This, in turn, causes the wedged shape upstanding finger 199 to move within the wedge shaped passageway 191 to cause the expanding washer 187 to radially expand and firmly engage with the inside surfaces 201 of the collar 173.
  • Click stop angular positioning of the arm 163 can be obtained by allowing a tooth 203 mounted on an arm 205, which forms part of the locking bar 193, to extend upwardly to engage between the serrations 175 on the collar 173.
  • a click stop position means is provided for the arm 163.
  • a pair of downwardly extending skirts 207 are provided to engage with the uppermost surface of the base 153. If non-click stop operation of the arm 163 is required, then by displacing a button 209 transversely across the head 147, then the arm 205 can be caused to extend downwardly so that the tooth" 203 will not engage with the serrations 175.
  • the undersurface of the button 209 is provided with ramp surfaces 211 which engage with the upper side edges of the arm 205 and allow it to be depressed downwardly out of the way of the serrations 175. This is shown in Figure 14 and in Figure 16.
  • the button 209 has a finger gripping portion 213 which protrudes through an opening 215 in the upper surface of the casting 151.
  • the arm 163 is held captive relative to the casting 151 -by a circlip 217 locating in the circlip groove 179..
  • the head-147 has a pair of protruding arms 219 and 221.
  • Arm 219 is moulded integrally with the casting 151 and has an elongate aperture 223 in which the locking bar 193 can slide. It also has an elongate transversely extending slot 225.
  • the other arm 221 is a piece of plastics material which has a generally top hat cross-sectional shape as shown in Figure 11.
  • the side flanges 225 thereof are arranged to locate in grooves 227 in base 153. Arm 221 is held to the base 153 by means of a screw 229.
  • the arms 219 and 221 locate over the outermost inner surface of the top 3 and the outermost inner surface of the base 1 of the tool.
  • Arm 221 locates with its side flanges 225 in grooves 231 in the base 1.
  • Arm 221 has a transverse extending aperture 233 at each end which correspond in size and shape to the apertures 226 in the upper arm 219.
  • Each of the apertures 226 and 233 are positioned and sized so that the upstanding foot 91 on the arms 87 of the end caps 9 and/or 11 can locate therein and positively hold the head 147 to the tool.
  • a small aperture 235 is provided in the arm 221 at two locations and one of the locations is such that it aligns centrally with the apertures 131 on the nose 5 or nose 7 so that a nail or like pointed object can be inserted therethrough to define the centre of a circle.
  • the elongate arm 165 is generally of H shaping cross-section as clearly shown in Figure 20. Beads 237 are provided on the innermost surfaces of the free ends of the legs of the H shaped section of the elongate arm 165.
  • the elongate arm 165 is held to the arm 163 on an arm holding and locking block 239. This is shown in Figure 10 but more clearly in Figures 11, 19, 22 and 23.
  • the arm holding and locking block 239 is of generally elongate, rectangular configuration with a wedge shaped longitudinally extending groove 241 therein. It can also be seen that the outer side edges of the arm holding and locking block 249 have two parallel longitudinally extending grooves 243 and 245.
  • the arm 163 is moulded with a downwardly directed wedge shaped block 247 where the angles of the wedge are complimentary to the angles of the we.dge shaped groove 241.
  • the arm holding and locking block 239 is screwed to the wedge shaped block 247 by two screws 250.
  • the elongate arm 165 is held to the arm holding and locking block 239 by force fitting into the grooves 243 or 245.
  • the fitting is such that the elongate arm 165 can slide along the respective grooves 243 or 245.
  • Locking means 249 is provided to lock the elongate arm 165 at a desired extended position relative to the arm 163.
  • the locking means 249 comprises a button which can slide along the side edge of the arm 163 in a slot 251 (see Figures 17, 18 and 19).
  • the locking means 249 has a base 253 which is received in a cut-out portion 255 in the top of the arm 163. It also has a wedge shaped leg 257 which passes through the slot 251. The bottom of the leg has a foot 259 which locates in a cut-out 301 in the bottom of the wedge shaped block 247. Thus, the locking means 249 can be secured relative to the arm 163.
  • the slot 251 is in two parts. There is an upper rectangular part 303 and a lower wedge shaped part 305. The angle of the wedge in the lower part 305 is complimentary to the shape of the wedge on the leg 257. This is shown in Figure 18.
  • the locking means 259 is moved to cause the wedged surfaces to firmly engage then the side wall of the arm holding and locking block 239 is caused to be displaced outwardly which, in turn, causes the arm holding and locking block 239 which is made of plastics material to firmly- engage with the inside surfaces of the elongate arm 165.
  • the arm 165 can be clamped to the arm 163 at a desired position when fitted in the grooves 231 and 233.
  • the further elongate arm 167 is slidable within the elongate arm 165.
  • the further elongate arm 167 is typically made of extruded aluminium as is the elongate arm 165.
  • a nose 307 of a short section of the same material as the arm 165 is fitted to the free end of the further elongate arm 167 as shown.
  • the section of the further elongate arm 165 is such that is can be tightly received for sliding movement within the elongate arm 165.
  • the nose 307 can be held to the arm 165 as by , gluing.
  • Arm 167 can be locked in any desired extended position relative to the arm 165 by means of a cam locking lever 309.
  • the cam locking lever 309 has an axle 311 which locates within apertures 313 in the arm 165.
  • the bridging portion 315 between the legs of the H section elongate arm 165 is provided with a cut-out 317 to enable the cam surfaces of the cam locking means 309 to engage with the upper* surface of the further elongate arm 167.
  • Length graduation means 319 and 321 are provided on the respective elongate arm 165 and further elongate arm 167 to provide an indication of the extended length of the arms 165 or 167 relative to the arm 163 on the head 147.
  • the heads 147 may be identical. Each fit to the tool in the manner previously described. When prop marking, the tool can be expanded to a required length and the required angles of the arms 163 can be adjusted by the user. Thus, when the tool is removed an accurate length and angle measurement can be made.
  • Figures 22 and 23 it can be seen how the tool is used for marking various angles and/or used as a T-square.
  • the arm 165 is shown at right angles relative to the tool.
  • the arm 165 may be dispo-sed at any desired angle but Figure 22 shows it at right angles.
  • the tool can be used to mark angles relative to the straight edge surfaces 25 and 27.
  • Figure 23 it can be seen how the tool can be used as a T-square at any desired angle of inclination of the arm 165 to the straight edge surfaces 25 and 27 by dropping the elongate arm 165 from the position where it is located in the grooves 243 to the position where it is located in the grooves 245.
  • a length extending bar 401 of similar cross-sectional shape as the arm 221 is provided.
  • the bar has an elongate transversely extending slot 403 at one end, and a nose 405 at the opposite end.
  • the nose 405 is manufactured from short lengths of the sections of the top 3 and the base 1 and held together by a suitable end plug 407 and closed on the inside end face by a plug 409.
  • the bar 401 has side flanges 411 which can locate in grooves 413 in the top 1.
  • the slot 403 is arranged to receive the foot 91 of the end cap 11.
  • the length extending bar 401 can be retained to the tool.
  • a transversely extending slot 415 to receive the foot 91 of the plug 407.
  • a diamond shaped aperture 417 at that end for receiving a pencil or other like object or an object which will provide for the centre of a circle.
  • arcs and/or circles can be scribed with the tool when the length extending bar 401 is fitted thereto. Also further heads 147 or other attachments can be fitted to length extending bar 401.
  • a spring means 133 (previously referred to) is also fitted within the nose 405 in the same manner as that described previously. The spring means 133 (not shown) at the nose 405 will engage with a pencil or like object in a similar manner to that previously described. It can be appreciated that the tool described above can be used as a straight edge, a level, a trisquare, a protractor, a double protractor, a length measuring means, a parallel marking gauge, a compass or arc scribing means.
  • an arm can be provided of the same • configurations as arm 221 ( Figure 11 - see the head 147) and fitted in the grooves 231 in the base 1, near one end of the tool. This arm can be held in the grooves 231 inwardly of foot 91.
  • this arm can be extended from the end of the tool at the opposite end to the pencil, but located with the foot 91 through aperture 233.
  • a nail can be inserted through the aperture 235 which then extends past the end of the tool and the overall length of the aperture 235 centre to the pencil will then be the same as the overall length of the tool.
  • different length indicating means 13 need not be provided for measuring the overall length of the tool and for measuring the radius of the arc or circle, i.e. only one scale or length indicating means need then be provided.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Toys (AREA)

Abstract

Un outil amélioré destiné à être utilisé par des ouvriers du bâtiment, des artisans ou des bricoleurs, comprend une première partie (1) et une seconde partie (3), présentant chacune une surface à tranchant droit (25 et 27). Les première et seconde parties peuvent être maintenues l'une contre l'autre et peuvent être déplacées l'une par rapport à l'autre, de telle sorte qu'on peut modifier leur longueur complète tout en maintenant un tranchant droit entre lesdites première et seconde parties. Des organes de lecture (17 et 19) du niveau sont également prévus. Ledit outil peut servir de règle à araser et/ou de niveau extensibles. Il peut également servir à d'autres effets.
PCT/AU1986/000294 1985-10-09 1986-10-07 Regle a araser et niveau extensibles WO1987002314A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPH2813 1985-10-09
AU281385 1985-10-09

Publications (1)

Publication Number Publication Date
WO1987002314A1 true WO1987002314A1 (fr) 1987-04-23

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WO (1) WO1987002314A1 (fr)

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2278918A (en) * 1993-06-11 1994-12-14 Padraic Denis Beirne An extendable spirit level
GB2302944A (en) * 1995-07-04 1997-02-05 John James Bell Spirit level
GB2348494A (en) * 1999-03-31 2000-10-04 Bosch Gmbh Robert Gradient indicating device
EP1125692A2 (fr) * 2000-02-18 2001-08-22 Leo Klapperich Equerre à rapporteur et talon
GB2371583A (en) * 2001-01-11 2002-07-31 Winifred Mildred Knight A levelling tool
US6675490B1 (en) 2000-06-28 2004-01-13 The Stanley Works Level
GB2403537A (en) * 2003-06-04 2005-01-05 Joseph Hannah Combination level and plumb
FR2874687A1 (fr) * 2004-08-25 2006-03-03 Andre Titeux Outil portatif multifonction pour mesurer, tracer et marquer
WO2006089061A2 (fr) * 2005-02-15 2006-08-24 Jeffrey Diaz Outil multifonction
GB2437313A (en) * 2006-04-18 2007-10-24 Karl Mcallister Adjustable attachment for spirit levels
US7299560B2 (en) 2005-02-15 2007-11-27 Topline Innovarions, Llc Multi-purpose tool
JP6292494B1 (ja) * 2017-06-30 2018-03-14 克 中里 墨出補助具
USD866365S1 (en) 2018-04-28 2019-11-12 Milwaukee Electric Tool Corporation Level
US10955240B2 (en) 2018-02-27 2021-03-23 Milwaukee Electric Tool Corporation Length adjustable level
US11092418B2 (en) 2017-02-08 2021-08-17 Milwaukee Electric Tool Corporation Tape measure with variable preformed stressed spiral spring retraction system
US11193764B2 (en) 2019-01-17 2021-12-07 Milwaukee Electric Tool Corporation Two datum vial mounting system and method
EP4079458A1 (fr) * 2021-04-20 2022-10-26 Choi Barbara Kronschewski Modèle pour la construction de meubles
US11725936B2 (en) 2019-01-17 2023-08-15 Milwaukee Electric Tool Corporation Two datum vial mounting system and method

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US1391621A (en) * 1920-01-26 1921-09-20 Fenwirth Frederick Henry Extension-rule
US1670025A (en) * 1922-06-22 1928-05-15 Clifford K Denman Extensible rule
US1684483A (en) * 1927-04-01 1928-09-18 Gasstrom Herman Joint for extension rules
DE644164C (de) * 1937-04-26 Wilhelm Kotzur Massstab mit verschiebbaren Gliedern
US2740201A (en) * 1954-08-16 1956-04-03 Carl J Swanson Extensible rule
US3065546A (en) * 1959-05-08 1962-11-27 Leroy H Brocklander Extension rule
US3094787A (en) * 1958-11-18 1963-06-25 James R Moore Extensible measuring rule
AU3674971A (en) * 1971-12-10 1973-06-14 Dot Pattern Co. Griew Zealand) Limited A measuring device
US4067117A (en) * 1976-06-03 1978-01-10 Bernard Ray A Grade checking tool
US4099331A (en) * 1976-05-17 1978-07-11 Peterson Wallace W Plumb-rule
DE2752968A1 (de) * 1977-11-28 1979-05-31 Sandor Suele Wasserwaage
US4186493A (en) * 1978-08-16 1980-02-05 Amid Ahamed A Telescoping carpenter's scale
US4327501A (en) * 1979-11-06 1982-05-04 Hurt Alfred A Square adapter for level
US4328619A (en) * 1980-10-20 1982-05-11 William Lefevre Length and angle gauge
US4399616A (en) * 1980-10-17 1983-08-23 Olle Humble Telescoping measuring rule
US4607437A (en) * 1985-01-31 1986-08-26 Mcsorley Sr Harry J Adjustable level

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Publication number Priority date Publication date Assignee Title
DE644164C (de) * 1937-04-26 Wilhelm Kotzur Massstab mit verschiebbaren Gliedern
US1391621A (en) * 1920-01-26 1921-09-20 Fenwirth Frederick Henry Extension-rule
US1670025A (en) * 1922-06-22 1928-05-15 Clifford K Denman Extensible rule
US1684483A (en) * 1927-04-01 1928-09-18 Gasstrom Herman Joint for extension rules
US2740201A (en) * 1954-08-16 1956-04-03 Carl J Swanson Extensible rule
US3094787A (en) * 1958-11-18 1963-06-25 James R Moore Extensible measuring rule
US3065546A (en) * 1959-05-08 1962-11-27 Leroy H Brocklander Extension rule
AU3674971A (en) * 1971-12-10 1973-06-14 Dot Pattern Co. Griew Zealand) Limited A measuring device
US4099331A (en) * 1976-05-17 1978-07-11 Peterson Wallace W Plumb-rule
US4067117A (en) * 1976-06-03 1978-01-10 Bernard Ray A Grade checking tool
DE2752968A1 (de) * 1977-11-28 1979-05-31 Sandor Suele Wasserwaage
US4186493A (en) * 1978-08-16 1980-02-05 Amid Ahamed A Telescoping carpenter's scale
US4327501A (en) * 1979-11-06 1982-05-04 Hurt Alfred A Square adapter for level
US4399616A (en) * 1980-10-17 1983-08-23 Olle Humble Telescoping measuring rule
US4328619A (en) * 1980-10-20 1982-05-11 William Lefevre Length and angle gauge
US4607437A (en) * 1985-01-31 1986-08-26 Mcsorley Sr Harry J Adjustable level

Cited By (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2278918A (en) * 1993-06-11 1994-12-14 Padraic Denis Beirne An extendable spirit level
GB2278918B (en) * 1993-06-11 1997-04-16 Padraic Denis Beirne A spirit level
GB2302944A (en) * 1995-07-04 1997-02-05 John James Bell Spirit level
GB2302944B (en) * 1995-07-04 1999-08-11 John James Bell Spirit level
GB2348494A (en) * 1999-03-31 2000-10-04 Bosch Gmbh Robert Gradient indicating device
GB2348494B (en) * 1999-03-31 2001-05-09 Bosch Gmbh Robert Gradient indicating device
EP1125692A2 (fr) * 2000-02-18 2001-08-22 Leo Klapperich Equerre à rapporteur et talon
EP1125692A3 (fr) * 2000-02-18 2002-11-27 Leo Klapperich Equerre à rapporteur et talon
US6675490B1 (en) 2000-06-28 2004-01-13 The Stanley Works Level
US6792686B2 (en) 2000-06-28 2004-09-21 The Stanley Works Level
GB2371583A (en) * 2001-01-11 2002-07-31 Winifred Mildred Knight A levelling tool
GB2371583B (en) * 2001-01-11 2004-09-15 Winifred Mildred Knight A levelling tool
GB2403537A (en) * 2003-06-04 2005-01-05 Joseph Hannah Combination level and plumb
FR2874687A1 (fr) * 2004-08-25 2006-03-03 Andre Titeux Outil portatif multifonction pour mesurer, tracer et marquer
WO2006089061A2 (fr) * 2005-02-15 2006-08-24 Jeffrey Diaz Outil multifonction
US7299560B2 (en) 2005-02-15 2007-11-27 Topline Innovarions, Llc Multi-purpose tool
WO2006089061A3 (fr) * 2005-02-15 2007-09-07 Jeffrey Diaz Outil multifonction
GB2437313A (en) * 2006-04-18 2007-10-24 Karl Mcallister Adjustable attachment for spirit levels
US11092418B2 (en) 2017-02-08 2021-08-17 Milwaukee Electric Tool Corporation Tape measure with variable preformed stressed spiral spring retraction system
JP6292494B1 (ja) * 2017-06-30 2018-03-14 克 中里 墨出補助具
JP2019012022A (ja) * 2017-06-30 2019-01-24 克 中里 墨出補助具
US11662202B2 (en) 2018-02-27 2023-05-30 Milwaukee Electric Tool Corporation Length adjustable level
US10955240B2 (en) 2018-02-27 2021-03-23 Milwaukee Electric Tool Corporation Length adjustable level
USD902059S1 (en) 2018-04-28 2020-11-17 Milwaukee Electric Tool Corporation Level
USD938837S1 (en) 2018-04-28 2021-12-21 Milwaukee Electric Tool Corporation Level
USD866365S1 (en) 2018-04-28 2019-11-12 Milwaukee Electric Tool Corporation Level
USD993792S1 (en) 2018-04-28 2023-08-01 Milwaukee Electric Tool Corporation Level
US11193764B2 (en) 2019-01-17 2021-12-07 Milwaukee Electric Tool Corporation Two datum vial mounting system and method
US11725936B2 (en) 2019-01-17 2023-08-15 Milwaukee Electric Tool Corporation Two datum vial mounting system and method
EP4079458A1 (fr) * 2021-04-20 2022-10-26 Choi Barbara Kronschewski Modèle pour la construction de meubles

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