WO2007030112A1 - Metre ruban metallique renforce - Google Patents

Metre ruban metallique renforce Download PDF

Info

Publication number
WO2007030112A1
WO2007030112A1 PCT/US2005/031986 US2005031986W WO2007030112A1 WO 2007030112 A1 WO2007030112 A1 WO 2007030112A1 US 2005031986 W US2005031986 W US 2005031986W WO 2007030112 A1 WO2007030112 A1 WO 2007030112A1
Authority
WO
WIPO (PCT)
Prior art keywords
blade
ruler blade
ruler
central portion
central
Prior art date
Application number
PCT/US2005/031986
Other languages
English (en)
Inventor
Huei-Yen Liao
Original Assignee
Huei-Yen Liao
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 Huei-Yen Liao filed Critical Huei-Yen Liao
Priority to PCT/US2005/031986 priority Critical patent/WO2007030112A1/fr
Publication of WO2007030112A1 publication Critical patent/WO2007030112A1/fr

Links

Classifications

    • 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
    • G01B3/10—Measuring tapes
    • G01B3/1041—Measuring tapes characterised by casings
    • G01B3/1046—Details of external structure thereof, e.g. shapes for ensuring firmer hold
    • G01B3/1048—Integrated means for affixing or holding
    • 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
    • G01B3/10—Measuring tapes
    • G01B3/1003—Measuring tapes characterised by structure or material; characterised by layout or indicia

Definitions

  • the present invention relates to a tape measure, and more particularly to a strengthened blade retractable tape measure, wherein the ruler blade, having a predetermined curvature, is adapted to rigidly extend at least 10 feet from the tape casing in a self-sustaining manner without buckling by its own weight, so as to substantially lengthen the measuring distance along the measuring blade.
  • a conventional retractable tape measure generally comprises a tape casing, a retractable reel assembly rotatably supported in the tape casing, and a ruler blade having an inner end attached to the retractable reel assembly such that the ruler blade is adapted to fold in the tape casing in a coil manner and to extend from the tape casing for length measuring purpose.
  • retractable tape measure for professional use, especially for construction.
  • One of the features of such retractable tape measure is to provide the ruler blade having a predetermined length to lengthen the measuring distance along the ruler blade.
  • Another feature of the retractable tape measure is to provide the ruler blade that the ruler blade must be rigid enough to self-sustaining manner when the ruler blade is extended from the tape casing. Therefore, the user is able to self-operate the retractable tape measure to measure the distance. In other words, the size and the weight of the retractable tape measure is not the most important concern for the professionals.
  • the dimension of the ruler blade must be configured.
  • the width of the ruler blade can be substantially increased for enhancing the self-sustaining support of the ruler blade.
  • the length of the ruler blade will be shortened to remain the weight thereof constantly.
  • the curvature of the ruler blade can be increased to enhance the self-sustaining ability thereof.
  • the ruler blade cannot be smoothly retracted back to the tape casing.
  • U.S. patent 6,324,769 owned by Murray, generally suggests a tape measure comprising a ruler blade having a width in the flattened configuration thereof having a dimension within the range of 1.1CT-1.5", a height in the concave- convex configuration thereof having a dimension within the range of 0.25"-0.40", and a thickness in either configuration thereof having a dimension within the range of 0.0045"-0.0063", such that the ruler blade is capable of standing out from the tape casing with a measuring length at least 10.5 feet. Therefore, the modification and improvement of the ruler blade should be considered as one of the important subject matter of the retractable tape measure to enhance the practice use thereof.
  • a main object of the present invention is to provide a strengthened blade tape measure, wherein the ruler blade, having a predetermined curvature, is adapted to rigidly extend at least 10 feet from the tape casing in a self-sustaining manner without buckling by its own weight, so as to substantially lengthen the measuring distance along the measuring blade.
  • Another object of the present invention is to provide a strengthened blade tape measure, wherein the curvature of the ruler blade does not affect the retraction operation of the tape measure via the retraction unit such that the ruler blade with its curvature is adapted to smoothly slide out from the tape casing for measuring purpose and to smoothly slide back to the tape casing for storage.
  • Another object of the present invention is to provide a strengthened blade tape measure which does not require altering its original structural design to incorporate with the ruler blade so as to minimize the manufacturing cost of the tape measure.
  • the ruler blade is adapted to incorporate the conventional tape casing without altering the original structure thereof.
  • Another object of the present invention is to provide a strengthened blade tape measure, wherein no expensive or complicated structure is required to employ in the present invention in order to achieve the above mentioned objects. Therefore, the present invention successfully provides an economic and effective solution not only for providing a rigid configuration to support the ruler blade in a self-sustaining manner but also for enhancing the measuring distance of the ruler blade extending out from the tape casing.
  • the present invention provides a strengthened blade tape measure, comprising:
  • a tape casing having a receiving cavity and a guider opening communicating with the receiving cavity;
  • a ruler blade having an inner end attached to the retraction unit and an outer end stopped at the guiding opening, adapted to slidably fold between a storage position and a measuring position, wherein at the storage position, the ruler blade is retracted to receive in the receiving cavity in a coil flattened configuration manner via the retraction unit, and at the measuring portion, the outer end of the ruler blade is slidably pulled to extend the ruler blade in a concave-convex configuration out of the receiving cavity through the guider opening, the ruler blade having a width in the flattened configuration thereof having a dimension within the range of 40-42mm, a height in the concave-convex configuration thereof having a dimension within the range of 9- 12mm, and a thickness thereof having a dimension at least 0.115mm or 0.12mm or more, such that the ruler blade is capable of standing out from the tape casing with a measuring length at least 10 feet in a self-sustaining manner so as to prevent the ruler blade from buckling by its own weight.
  • Fig. 1 is a perspective view of a strengthened blade tape measure according to a preferred embodiment of the present invention.
  • Fig. 2 is a sectional view of the strengthened blade tape measure according to the above preferred embodiment of the present invention.
  • Fig. 3 illustrates the dimensions of the ruler blade of the strengthened blade tape measure in the concave-convex configuration according to the above preferred embodiment of the present invention.
  • Fig. 4 illustrates the dimensions of the ruler blade of the strengthened blade tape measure in the flattened configuration according to the above preferred embodiment of the present invention.
  • Fig. 5 illustrates the dimensions of the ruler blade and its alternative modes according to the above preferred embodiment of the present invention.
  • the tape measure such as a conventional tape measure, comprises a tape casing 10 having a receiving cavity 11 and a guider opening 12 communicating with the receiving cavity 11, and a retraction unit 20 supported in the receiving cavity 11 of the tape casing 10.
  • the tape measure further comprises a ruler blade 30, having an inner end attached to the retraction unit 20 and an outer end stopped at the guiding opening 12, adapted to slidably fold between a storage position and a measuring position.
  • the ruler blade 30 is retracted to receive in the receiving cavity 11 in a coil flattened configuration manner via the retraction unit 20, and at the measuring portion, the outer end 302 of the ruler blade 30 is slidably pulled to extend the ruler blade 30 in a concave-convex configuration out of the receiving cavity 11 through the guider opening 12.
  • the retraction unit 20 comprises a supporting reel 21 rotatably supported in the receiving cavity 11 and a retraction element 22 coaxially mounted to the supporting reel 21 to wind up the ruler blade 30 in a coil-rolled manner about the supporting reel 21 at the storage position. Accordingly, at normal condition, the ruler blade 30 is in a concave-convex configuration that when the ruler blade 30 is extended out of the tape housing 10. At the storage position, the ruler blade 30 is retracted and pressed to flatten its shape by the retracting force of the retraction unit 20.
  • the ruler blade 30 has a longitudinal central portion 31 and two longitudinal side portions 32 integrally extended from two sides of the central portion 31 of the ruler blade 30 respectively, wherein each of the side portions 32 of the ruler blade 30 has a curvature smaller than a curvature of the central portion 31 of the ruler blade 30, as shown in Fig. 3.
  • a measurement set is printed along at least one of the side portions 32 of the ruler blade 30.
  • the central portion 31 of the ruler blade 30 has a width Wi in the concave- convex configuration thereof having a dimension within a range of 20-22mm, a height Hi in the concave-convex configuration thereof having a dimension within a range of 3 -4mm.
  • the ruler blade 30 has a width W in the flattened configuration thereof having a dimension within the range of 40-42mm, a height H in the concave-convex configuration thereof having a dimension within the range of 9- 12mm, and a thickness T thereof having a dimension at least 0.115mm or more, preferably 0.115mm to 0.2mm, such that the ruler blade 30 is capable of standing out from the tape casing 10 with a measuring length L at least 10 feet in a self-sustaining manner so as to prevent the ruler blade 30 from buckling by its own weight.
  • the width Wi of the ruler blade 30 in the concave-convex configuration has a dimension within the range of 32-36mm.
  • the central portion 31 of the ruler blade 30 has a width W 2 in the concave- convex configuration thereof having a dimension within the range of 20-22mm, a height Hi in the concave-convex configuration thereof having a dimension within the range of 3 -4mm. As shown in Figs. 3 and 4, the dimensions of the ruler blade 30 are illustrated that the width W of the ruler blade 30 in the flattened configuration is
  • the width Wi of the ruler blade 30 in the concave-convex configuration is 32.11mm.
  • the curvature of the central portion 31 of the ruler blade 30 is defined that the central projecting radius Ri of the central portion 31 of the ruler blade 30 is 15mm and the central projecting angle ⁇ of the central portion 31 of the ruler blade 30 is 84 ° .
  • the width W 2 of the central portion 31 of the ruler blade 30 in the concave-convex configuration is 20.07mm and the height Hi of the central portion 31 of the ruler blade 30 in the concave-convex configuration is 3.85mm.
  • each of the side portion 32 of the ruler blade 30 is defined that the side projecting radius R 2 of the side portion 32 of the ruler blade 30 is 30mm and the side projecting angle ⁇ of the side portion 32 of the ruler blade 30 is 18.43 ° .
  • the central portion 31 of the ruler blade 30 is arranged to support the ruler blade 30 in such a manner that the ruler blade 30 is adapted to stand out from the tape casing 10 with the measuring length L at least 10 feet in a self- sustaining manner so as to prevent the ruler blade 30 from buckling by its own weight.
  • the curvature of each of the side portions 32 of the ruler blade 30 should be lesser than the curvature of the central portion 31 of the ruler blade 30 such that the measurement set printed along the respective side portion 32 of the ruler blade 30 can be easily read when the ruler blade 30 is extended to stand out from the tape casing 10.
  • Fig. 5 illustrates the ruler blade 30 with alternative sets of dimensions thereof such that the ruler blade 30 is capable of standing out from the tape casing 10 with a measuring length L at least 10 feet in a self-sustaining manner.
  • the dimensions of the ruler blade 30, according to the first alternative mode, are illustrated that the width W of the ruler blade 30 in the flattened configuration is 41.29mm and the height H in the concave-convex configuration thereof is 11.03mm.
  • the width Wi of the ruler blade 30 in the concave-convex configuration is 32.94mm.
  • the curvature of the central portion 31 of the ruler blade 30 is defined that the central projecting radius Ri of the central portion 31 of the ruler blade 30 is 15mm and the central projecting angle ⁇ of the central portion 31 of the ruler blade 30 is 84 ° .
  • the width W 2 of the central portion 31 of the ruler blade 30 in the concave-convex configuration is 20.07mm and the height H 1 of the central portion 31 of the ruler blade 30 in the concave-convex configuration is 3.85mm.
  • each of the side portion 32 of the ruler blade 30 is defined that the side projecting radius R 2 of the side portion 32 of the ruler blade 30 is 45mm and the side projecting angle ⁇ of the side portion 32 of the ruler blade 30 is 12.3 ° .
  • the dimensions of the ruler blade 30, according to the second alternative mode, are illustrated that the width W of the ruler blade 30 in the flattened configuration is 41.29mm and the height H in the concave-convex configuration thereof is 9.75mm.
  • the width W 1 of the ruler blade 30 in the concave- convex configuration is 34.91mm.
  • the curvature of the central portion 31 of the ruler blade 30 is defined that the central projecting radius Rj of the central portion 31 of the ruler blade 30 is 18mm and the central projecting angle ⁇ of the central portion 31 of the ruler blade 30 is 74 ° .
  • the width W 2 of the central portion 31 of the ruler blade 30 in the concave-convex configuration is 21.67mm and the height H 1 of the central portion 31 of the ruler blade 30 in the concave-convex configuration is 3.62mm.
  • each of the side portion 32 of the ruler blade 30 is defined that the side projecting radius R 2 of the side portion 32 of the ruler blade 30 is 45mm and the side projecting angle ⁇ of the side portion 32 of the ruler blade 30 is 11.5 .

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Tape Measures (AREA)

Abstract

Mètre ruban métallique renforcé comprenant un boîtier de ruban (10), une unité de rétraction (20), et un ruban métallique gradué (30) ayant une extrémité interne fixée à l'unité de rétraction (20) et une extrémité externe stoppée au niveau d'une ouverture de guidage (12) du boîtier de ruban (10) adaptée pour se plier de façon coulissante entre une position de stockage et une position de mesure. Dans le mètre ruban ci-décrit, en position de stockage, le ruban métallique gradué (30) est rétracté pour être reçu dans le boîtier de ruban (10) en configuration de spirale aplatie via l'unité de rétraction (20), et en position de mesure, l'extrémité externe du ruban métallique gradué (30) est tirée de façon coulissante pour dérouler le ruban métallique gradué en configuration concave-convexe à l'extérieur du boîtier de ruban (10) par l'ouverture de guidage (12). Le ruban métallique gradué (30) peut rester rigide une fois hors du boîtier de ruban (10) sur une longueur de mesure d'au moins 10 pieds d'une manière autonome, ce qui évite au ruban métallique gradué (30) de se déformer sous son propre poids.
PCT/US2005/031986 2005-09-06 2005-09-06 Metre ruban metallique renforce WO2007030112A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/US2005/031986 WO2007030112A1 (fr) 2005-09-06 2005-09-06 Metre ruban metallique renforce

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2005/031986 WO2007030112A1 (fr) 2005-09-06 2005-09-06 Metre ruban metallique renforce

Publications (1)

Publication Number Publication Date
WO2007030112A1 true WO2007030112A1 (fr) 2007-03-15

Family

ID=37836139

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2005/031986 WO2007030112A1 (fr) 2005-09-06 2005-09-06 Metre ruban metallique renforce

Country Status (1)

Country Link
WO (1) WO2007030112A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4429462A (en) * 1982-09-30 1984-02-07 The Stanley Works Variable stiffness rule blade, rule employing same, and method of making same
US4459753A (en) * 1980-08-14 1984-07-17 Sekisui Jushi Kabushiki Kaisha Self-straightening tape measure of synthetic resin and a process for preparing the same
US6324769B1 (en) * 1999-08-04 2001-12-04 The Stanley Works Rule assembly with increased blade standout
US6367161B1 (en) * 1998-08-14 2002-04-09 The Stanley Works Rule assembly with increased standout
US6473896B1 (en) * 1998-10-13 2002-10-29 Parasoft, Corp. Method and system for graphically generating user-defined rules for checking language quality
US6662463B2 (en) * 2002-03-15 2003-12-16 Shih-Lin Lee Tape rule with a tape of enhanced stiffness

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4459753A (en) * 1980-08-14 1984-07-17 Sekisui Jushi Kabushiki Kaisha Self-straightening tape measure of synthetic resin and a process for preparing the same
US4429462A (en) * 1982-09-30 1984-02-07 The Stanley Works Variable stiffness rule blade, rule employing same, and method of making same
US6367161B1 (en) * 1998-08-14 2002-04-09 The Stanley Works Rule assembly with increased standout
US6473896B1 (en) * 1998-10-13 2002-10-29 Parasoft, Corp. Method and system for graphically generating user-defined rules for checking language quality
US6324769B1 (en) * 1999-08-04 2001-12-04 The Stanley Works Rule assembly with increased blade standout
US6643947B2 (en) * 1999-08-04 2003-11-11 The Stanley Works Rule assembly with increased blade standout
US6662463B2 (en) * 2002-03-15 2003-12-16 Shih-Lin Lee Tape rule with a tape of enhanced stiffness

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