DE202004008654U1 - Circumferential tape measure with diameter scale, especially for direct measurement of pipe diameters, e.g. in pumping installations, has one side with a diameter scale where graduations represent lengths divided by pi - Google Patents

Circumferential tape measure with diameter scale, especially for direct measurement of pipe diameters, e.g. in pumping installations, has one side with a diameter scale where graduations represent lengths divided by pi Download PDF

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Publication number
DE202004008654U1
DE202004008654U1 DE202004008654U DE202004008654U DE202004008654U1 DE 202004008654 U1 DE202004008654 U1 DE 202004008654U1 DE 202004008654 U DE202004008654 U DE 202004008654U DE 202004008654 U DE202004008654 U DE 202004008654U DE 202004008654 U1 DE202004008654 U1 DE 202004008654U1
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Germany
Prior art keywords
diameter scale
tape measure
diameter
direct measurement
pipe diameters
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Expired - Lifetime
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DE202004008654U
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German (de)
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Priority to DE202004008654U priority Critical patent/DE202004008654U1/en
Publication of DE202004008654U1 publication Critical patent/DE202004008654U1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
    • G01B5/02—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness
    • G01B5/025—Measuring of circumference; Measuring length of ring-shaped articles
    • 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

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Tape Measures (AREA)
  • A Measuring Device Byusing Mechanical Method (AREA)

Abstract

Circumferential tape measure has one side marked with markings representing the conversion calculation length (circumference) divided by pi so that, in addition to circumferences, diameters can be directly measured. Optimally the tape is flat so that it can easily be coiled around a pipe.

Description

In fertig installierten Pumpanlagen sind die Durchmesser von Rohren schlecht zu messen, denn ein freier Rohrquerschnitt ist in der Regel nicht vorhanden. Vor allem bei Rohren ab DN 75 mm wird dies schwierig, weil es dafür kein handliches Messgerät gibt.In fully installed pump systems the diameters of pipes are difficult to measure, because a free one There is usually no pipe cross-section. Especially with This becomes difficult for pipes from DN 75 mm, because it is not handy Measuring device there.

Möglich ist das Messen des immer zugänglichen Rohrumfangs, wofür am ehesten ein Bandmaß geeignet ist. Das Messergebnis (Umfang) muss aber erst umgerechnet werden (1/π) um den Durchmesser zu erhalten.Possible is measuring the always accessible Pipe circumference, for what most likely a tape measure is. The measurement result (scope) must first be converted (1 / π) around to get the diameter.

Der im Schutzanspruch 1 angegebenen Erfindung liegt das Problem zugrunde, ein handliches Messmittel zu schaffen, dass das direkte Ablesen des Rohrdurchmessers über den Rohrumfang ermöglicht.The specified in protection claim 1 Invention is based on the problem of a handy measuring device to create that the direct reading of the pipe diameter over the Pipe circumference allows.

Dieses Problem wird mit den im Schutzanspruch 1 aufgeführten Merkmalen gelöst, weil der Umrechnungsfaktor in die Skalierung eingearbeitet ist und die Standarddurchmesser angegeben sind (s. Abbildung).This problem is with the protection claim 1 listed Characteristics solved, because the conversion factor is incorporated into the scaling and the standard diameters are given (see illustration).

Mit der Erfindung wird erreicht, dass der Außendurchmesser eines Rohres direkt abgelesen werden kann.With the invention it is achieved that the outside diameter of a pipe can be read directly.

Durch einen Verzicht auf die üblicherweise stabilisierende gewölbte Form in Längsrichtung, kann das Maßband direkt um das Rohr gelegt werden.By doing without the usually stabilizing domed Longitudinal shape, can the tape measure directly around the pipe.

Claims (2)

Umfangbandmaß zur Durchmessermessung dadurch gekennzeichnet, dass eine Seite des Maßbandes mit der Umrechnung „Länge (Umfang) / π = angezeigter Wert (Durchmesser)" skaliert ist (s. Abbildung).Circumference tape measure for diameter measurement characterized in that one side of the tape measure is scaled with the conversion "length (circumference) / π = displayed value (diameter)" (see figure). Skalierung mit der Umrechnung „Umfang / π = Durchmesser" dadurch gekennzeichnet, dass die Außendurchmesser der gängigen Rohrleitungen besonders vermerkt sind.Scaling characterized by the conversion "circumference / π = diameter", that the outside diameter the common Pipelines are particularly noted.
DE202004008654U 2004-06-01 2004-06-01 Circumferential tape measure with diameter scale, especially for direct measurement of pipe diameters, e.g. in pumping installations, has one side with a diameter scale where graduations represent lengths divided by pi Expired - Lifetime DE202004008654U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE202004008654U DE202004008654U1 (en) 2004-06-01 2004-06-01 Circumferential tape measure with diameter scale, especially for direct measurement of pipe diameters, e.g. in pumping installations, has one side with a diameter scale where graduations represent lengths divided by pi

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202004008654U DE202004008654U1 (en) 2004-06-01 2004-06-01 Circumferential tape measure with diameter scale, especially for direct measurement of pipe diameters, e.g. in pumping installations, has one side with a diameter scale where graduations represent lengths divided by pi

Publications (1)

Publication Number Publication Date
DE202004008654U1 true DE202004008654U1 (en) 2004-09-02

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Family Applications (1)

Application Number Title Priority Date Filing Date
DE202004008654U Expired - Lifetime DE202004008654U1 (en) 2004-06-01 2004-06-01 Circumferential tape measure with diameter scale, especially for direct measurement of pipe diameters, e.g. in pumping installations, has one side with a diameter scale where graduations represent lengths divided by pi

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DE (1) DE202004008654U1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005027505A1 (en) * 2005-06-15 2006-12-28 Acts Advanced Car Technology Systems Gmbh & Co.Kg Passenger restraint system for e.g. motor vehicle, has inflation device connected with internal spaces of airbags by channels to supply pressure medium into spaces to inflate airbags, where number of airbags is larger than number of device
CN111919104A (en) * 2018-03-28 2020-11-10 三菱动力株式会社 Method for evaluating remaining life of piping

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005027505A1 (en) * 2005-06-15 2006-12-28 Acts Advanced Car Technology Systems Gmbh & Co.Kg Passenger restraint system for e.g. motor vehicle, has inflation device connected with internal spaces of airbags by channels to supply pressure medium into spaces to inflate airbags, where number of airbags is larger than number of device
CN111919104A (en) * 2018-03-28 2020-11-10 三菱动力株式会社 Method for evaluating remaining life of piping

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Legal Events

Date Code Title Description
R086 Non-binding declaration of licensing interest
R207 Utility model specification

Effective date: 20041007

R150 Term of protection extended to 6 years

Effective date: 20071009

R151 Term of protection extended to 8 years

Effective date: 20100623

R158 Lapse of ip right after 8 years
R073 Re-establishment requested
R073 Re-establishment requested
R409 Internal rectification of the legal status completed
R074 Re-establishment allowed
R074 Re-establishment allowed
R152 Term of protection extended to 10 years

Effective date: 20130306

R071 Expiry of right