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DE921284C - Measuring device for measuring the inner circumference of bores, especially hollow shafts of artificial legs - Google Patents

Measuring device for measuring the inner circumference of bores, especially hollow shafts of artificial legs

Info

Publication number
DE921284C
DE921284C DEK18998A DEK0018998A DE921284C DE 921284 C DE921284 C DE 921284C DE K18998 A DEK18998 A DE K18998A DE K0018998 A DEK0018998 A DE K0018998A DE 921284 C DE921284 C DE 921284C
Authority
DE
Germany
Prior art keywords
measuring
roller
housing
bores
measuring device
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
Application number
DEK18998A
Other languages
German (de)
Inventor
August Knieriemen
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.)
Individual
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 DEK18998A priority Critical patent/DE921284C/en
Application granted granted Critical
Publication of DE921284C publication Critical patent/DE921284C/en
Expired legal-status Critical Current

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
    • G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
    • G01B5/08—Measuring arrangements characterised by the use of mechanical techniques for measuring diameters
    • G01B5/12—Measuring arrangements characterised by the use of mechanical techniques for measuring diameters internal diameters

Landscapes

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

Description

Die Erfindung hat die Aufgabe, unzulängliche rohrförmige Körper, insbesondere Hohlschäfte von Kunstbeinen, auf ihren Innenumfang zu messen. Zu diesem Zweck enthält das Meßgerät nach der Erfindung ein elastisches Meßband, dessen eines Ende am Gerätegehäuse festgelegt ist und das mit seinem anderen Ende so am Umfang einer drehbar in dem Gehäuse gelagerten Walze befestigt ist, daß die außerhalb des Gehäuses liegende freie Länge des durch einen Schlitz des Gehäuses geführten Meßbandes eine Funktion der Stellung der Walze darstellt, die auf einer in senkrechtem Abstand von der Walzenebene angeordneten Skala ablesbar ist, über der ein Zeiger spielt, der durch einen mit der Walze durch eine Welle verbundenen Drehknopf verstellbar ist. Zur Messung wird das Meßgerät in den Hohlschaft eingeschoben und der Umfang der betreffenden Stelle gemessen, wobei es gleichgültig ist, welche Form der Hohlschaft aufweist. The invention has the object of inadequate tubular body, especially hollow shafts of artificial legs, to measure their inner circumference. To this Purpose contains the measuring device according to the invention, an elastic measuring tape, one of which End is set on the device housing and that with its other end so on the circumference a rotatably mounted roller is mounted in the housing that the outside of the Housing lying free length of the measuring tape guided through a slot in the housing represents a function of the position of the roller, which is on a vertically spaced can be read from the scale arranged on the roller plane, over which a pointer plays, adjustable by a rotary knob connected to the roller by a shaft is. To measure, the measuring device is inserted into the hollow shaft and the circumference measured at the relevant point, regardless of the shape of the hollow shaft having.

In der Zeichnung (Abb. I und 2) ist ein Ausführungsbeispiel in zwei Schnitten dargestellt. In the drawing (Fig. I and 2) is an embodiment in two Sections shown.

Die Wirkungsweise ist folgende: An einem beliebig langen Rohr mit Tiefenmaß 4 ist unten ein Gehäuse I befestigt. An diesem Gehäuse I ist mittels Schraube ii das Ende des Meßbandes 8 angeschraubt. Das andere Ende dieses Meßbandes 8 wird durch einen Schlitz ins Gehäuse I geführt, mit der Walze 2 verbunden und auf dieser aufgerollt. Um ein Klemmen des Meßbandes 8 im Gehäuse l zu verhindern, sind die Rollen g mittels Schraube IO an diesem befestigt. Wird nun mittels Knopf 6, welcher auf der Welle 3 sitzt, die Walze 2 gedreht, so wickelt sich das Meßband 8 auf dieser auf oder ab. Das ablaufende Band 8 legt sich genau am Umfang des zu messenden Hohlschaftes an, so daß die Länge des anliegenden Bandes 8 dem Umfang der Meßstelle entspricht. Durch den Zeiger 7, der an Knopf 6 befestigt ist und sich mit der Walze 2 dreht, kann auf der entsprechend geeichten Zählscheibe 5 die Länge des Meßbandes 8 und somit der Umfang der Meßstelle im Hohlschaft abgelesen werden. The mode of action is as follows: On a pipe of any length with A housing I is attached to the bottom of the depth 4. On this housing I is by means of a screw ii the end of the measuring tape 8 screwed on. The other end of this measuring tape 8 is passed through a slot in the housing I, connected to the roller 2 and on this rolled up. In order to prevent the measuring tape 8 from jamming in the housing l, the Rolls g attached to this by means of screw IO. Is now using button 6, which sits on the shaft 3, the roller 2 is rotated, so the measuring tape 8 winds on this up or down. The running tape 8 lies exactly on the circumference of the hollow shaft to be measured so that the length of the adjacent tape 8 corresponds to the circumference of the measuring point. Through the pointer 7, which is attached to button 6 and rotates with roller 2, can on the appropriately calibrated counting disk 5, the length of the measuring tape 8 and thus the circumference of the measuring point in the hollow shaft can be read.

Auf diese Weise ist es möglich, unzugängliche Meßstellen in Hohlschäften, gleichgültig welcher Form, von außen bequem messen und ablesen zu können. In this way it is possible to find inaccessible measuring points in hollow shafts, Regardless of the shape, it can be conveniently measured and read from the outside.

Claims (2)

PATENTANSPRÜCHE: I. Meßgerät zum Messen des Innenumfangs von Bohrungen, insbesondere von Hohlschäften von Kunstbeinen, - gekennzeichnet durch ein elastisches Meßband, dessen eines Ende am Gerätegehäuse festgelegt ist und das mit seinem anderen Ende so am Umfang einer drehbar in dem Gehäuse gelagerten Walze befestigt ist, daß die außerhalb des Gehäuses liegende freie Länge des durch einen Schlitz des Gehäuses geführten Meßbandes eine Funktion der Stellung der Walze darstellt, die auf einer in senkrechtem Abstand von der Walzenebene angeordneten Skala ablesbar ist, über der ein Zeiger spielt, der durch einen mit der Walze durch eine Welle verbundenen Drehknopf verstellbar ist. PATENT CLAIMS: I. Measuring device for measuring the inner circumference of bores, in particular of hollow shafts of artificial legs, - characterized by an elastic Measuring tape, one end of which is fixed to the device housing and that with its other End is attached to the periphery of a rotatably mounted roller in the housing that the free length of the outside of the housing lying through a slot in the housing guided measuring tape is a function of the position of the roller, which is on a is readable at a vertical distance from the roller plane arranged scale over which a pointer plays, the one connected to the roller by a shaft by one Rotary knob is adjustable. 2. Meßgerät nach Anspruch I, gekennzeichnet durch eine auf dem die Verbindungswelle zwischen Walze und Drehknopf umgebenden Rohr angeordnete Tiefenteilung. 2. Measuring device according to claim I, characterized by one on which the Connecting shaft arranged between the roller and the rotary knob surrounding the tube.
DEK18998A 1953-08-01 1953-08-01 Measuring device for measuring the inner circumference of bores, especially hollow shafts of artificial legs Expired DE921284C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEK18998A DE921284C (en) 1953-08-01 1953-08-01 Measuring device for measuring the inner circumference of bores, especially hollow shafts of artificial legs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK18998A DE921284C (en) 1953-08-01 1953-08-01 Measuring device for measuring the inner circumference of bores, especially hollow shafts of artificial legs

Publications (1)

Publication Number Publication Date
DE921284C true DE921284C (en) 1954-12-13

Family

ID=7215528

Family Applications (1)

Application Number Title Priority Date Filing Date
DEK18998A Expired DE921284C (en) 1953-08-01 1953-08-01 Measuring device for measuring the inner circumference of bores, especially hollow shafts of artificial legs

Country Status (1)

Country Link
DE (1) DE921284C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4922622A (en) * 1989-04-28 1990-05-08 H.B.D. Industries, Inc. Measuring device for the internal diameter of a tube

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4922622A (en) * 1989-04-28 1990-05-08 H.B.D. Industries, Inc. Measuring device for the internal diameter of a tube

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