DE3410509C2 - Device for measuring the size of easily deformable objects - Google Patents
Device for measuring the size of easily deformable objectsInfo
- Publication number
- DE3410509C2 DE3410509C2 DE19843410509 DE3410509A DE3410509C2 DE 3410509 C2 DE3410509 C2 DE 3410509C2 DE 19843410509 DE19843410509 DE 19843410509 DE 3410509 A DE3410509 A DE 3410509A DE 3410509 C2 DE3410509 C2 DE 3410509C2
- Authority
- DE
- Germany
- Prior art keywords
- spring
- probe arm
- lock
- arm
- contact plate
- 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
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/103—Detecting, measuring or recording devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
- A61B5/107—Measuring physical dimensions, e.g. size of the entire body or parts thereof
-
- 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
- G01B3/002—Details
- G01B3/008—Arrangements for controlling the measuring force
-
- 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
- G01B3/38—Gauges with an open yoke and opposed faces, i.e. calipers, in which the internal distance between the faces is fixed, although it may be preadjustable
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6846—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive
- A61B5/6885—Monitoring or controlling sensor contact pressure
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Biophysics (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Dentistry (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
- Length-Measuring Instruments Using Mechanical Means (AREA)
Abstract
Eine Vorrichtung zur Ausmessung der Größe von leicht deformierbaren Objekten, insbesondere von Tumorgewebe, mit einem festen und einem beweglichen Tastarm mit Kontaktplatten (3, 4), deren Abstand auf einer Skala (5) angezeigt wird und von denen die eine (4) bzw. ihr weiterführendes Gestänge (2) relativ zum Tastarm (9) gegen eine die Andruckkraft übertragende Feder (8) verschieblich ist, umfaßt eine formschlüssige Sperre von Tastarm und Kontaktplattenstange, ausgelöst durch die kompressionsbedingte Verkürzung der Feder bei Erreichen der gewünschten Andruckkraft. Für diese automatisch ausgelöste Sperre ist insbesondere ein Kipphebel (7) vorgesehen, dessen eines Ende mit der Feder (8) verbunden ist, während das andere bei gewünschter Federverkürzung selbst oder über einen Sperrhebel mit senkrecht auf derjenigen des Kipphebels stehender Neigungsebene für den Eingriff in eine Zahnung (11) sorgt.A device for measuring the size of easily deformable objects, in particular tumor tissue, with a fixed and a movable probe arm with contact plates (3, 4), the distance between which is displayed on a scale (5) and one of which (4) or its further linkage (2) is displaceable relative to the feeler arm (9) against a spring (8) transmitting the pressure force, comprises a form-fitting lock of the feeler arm and contact plate rod, triggered by the compression-induced shortening of the spring when the desired pressure force is reached. For this automatically triggered lock, a rocker arm (7) is provided in particular, one end of which is connected to the spring (8), while the other, if the spring shortening is desired, either itself or via a locking lever with a plane of inclination perpendicular to that of the rocker arm for engaging in a Teeth (11) ensures.
Description
plattenabstand) auf einer nicht dargestellten Rundskala anzeigt.plate distance) on a round scale, not shown.
Gemäß der gezeigten Anordnung wird bei einer vorbestimmten Andruckkraft der Kontaktphtte bzw. Kontaktplattenstange auf dem zu messenden Objekt die Vorschubbewegung der Stange formschlüssig in folgender Weise gesperrt:According to the arrangement shown, at a predetermined pressure force, the contact plate or contact plate rod on the object to be measured, the feed movement of the rod positively in the following Locked way:
Wenn durch Aufbringen einer Druckkraft auf den Druckteller 21 des Tastarms 19 das Meßwerk in Bewegung gebracht wird, erfolgt die Weiterleitung der Kraft über den Tastarm 19 mit Meßkrafteinstellschraube 22 und Federführungsstift 23 über die Druckfeder 24 auf den Kipphebel 12. Der Kipphebel 12 überträgt die Kraft über den Kupplungsstift 25 auf die Kontaktplattenstange 18. Bei Erreichen einer Andruckkraft, die die an der Druckfeder 24 eingestellte Meßkraft übersteigt ist der Kipphebel 12 im Uhrzeigersinn soweit gekippt daß der Sperrhebel 13 mit dem Sperrzahn 26 in das Sperrzahnrad 14 eingreift Die zum Eingriff gelangerde Flanke des Sperrzahns steht senkrecht auf der Bewegungsrichtung von Tastarm und Kontaktplattenstange, um eine Selbsthemmung des Meßwerks zu bewirken, solange die Andruckkraft einwirktIf by applying a compressive force to the pressure plate 21 of the probe arm 19, the measuring mechanism is in motion is brought, the transmission of the force takes place via the probe arm 19 with measuring force adjustment screw 22 and spring guide pin 23 via the compression spring 24 on the rocker arm 12. The rocker arm 12 transmits the force via the coupling pin 25 on the contact plate rod 18. Upon reaching a pressure force that is the on the Compression spring 24 exceeds the set measuring force, the rocker arm 12 is tilted clockwise to such an extent that the Locking lever 13 engages with ratchet tooth 26 in ratchet wheel 14 The ratchet is perpendicular to the direction of movement of the feeler arm and contact plate rod to provide self-locking of the measuring mechanism as long as the pressure is applied
Mehr im einzelnen wird dabei der waagerechte linke Schenkel des Kipphebels 12 nach oben bewegt und sein senkrechter Schenkel mit dem daran angebrachten Mitnehmerstift 27 nach links. Der Mitnehmerstift 27 fährt über die gesamte Länge des Meßweges in einer Nut 28 des Sperrhebels 13 und bewirkt dadurch, daß die Kippbewegung des Kipphebels 12 zu einer Schwenkbewegung des Sperrhebels 13 nach links führt.In more detail, the horizontal left leg of the rocker arm 12 will be moved upwards and be vertical leg with attached driver pin 27 to the left. The driving pin 27 moves over the entire length of the measuring path in a groove 28 of the locking lever 13 and thereby causes the tilting movement of the rocker arm 12 leads to a pivoting movement of the locking lever 13 to the left.
Der am Sperrhebel 13 angebrachte Sperrzahn 26 kommt zum Eingriff in das Sperrzahnrad 14, das auf dem Ritzel 20 angebracht ist. Das Meßwerk ist dann formschlüssig gesperrt Die Sperrung bleibt solange erhalten, wie eine auf den Druckteller 21 einwirkende Andruckkraft die eingestellte Meßkraft übersteigt Das heißt bei dieser Ausführung bleibt — anders als beim Gerät gem. F i g. 1 — die Sperrung und somit auch die Meßwertanzeige bei Wegfall des Gegendrucks an der Kontaktplatte 4 erhalten.The ratchet tooth 26 attached to the locking lever 13 comes into engagement with the ratchet wheel 14, which is on the pinion 20 is attached. The measuring mechanism is then positively locked. The lock remains in effect as long as how a pressure force acting on the pressure plate 21 exceeds the set measuring force means in this version remains - unlike the device according to FIG. 1 - the blocking and thus also the Measured value display received when the counterpressure on contact plate 4 ceases.
Bei Aufhebung der Andruckkraft drückt die Feder 24 den Kipphebel 12 und den Sperrhebel 13 in die Ausgangslage zurück, eine in der Darstellung nicht gezeigte Rückholfeder führt die Kontaktplattenstange 18 und Tastarm 19 zurück in die Ausgangsposition.When the pressure force is released, the spring 24 presses the rocker arm 12 and the locking lever 13 into the starting position back, a return spring, not shown in the illustration, guides the contact plate rod 18 and Probe arm 19 back to the starting position.
Hierzu 2 Blatt ZeichnungenFor this purpose 2 sheets of drawings
5050
5555
6060
6565
Claims (4)
Tastarm mit Kontaktplatten, deren Abstand auf ei- Da die druckabhängige Sperre des Tastarms mögner Skala angezeigt wird und von denen die eine liehst fein über den gesamten Meßbereich möglich sein über eine Kontaktplattenstange relativ zum Tastarm soll, wird zweckmäßigerweise ein Sperrzahnrad vorgegegen eine die Andruckkraft übertragende Feder io sehen, das die Bewegung des Tastarms hemmt und insverschieblich ist, wobei das Erreichen der gewünsch- besondere auf der Zeigerstange einer Meßuhr fest monten Andruckkraft über die kompressionsbedingte tiert ist, mit welcher der Tastarm gekoppelt ist Der Federverkürzung eine Sperre von Tastarm und Einrastmechanismus umfaßt dann einen im Gehäuse Kontaktplattenstange auslöst nach Patent drehbar gelagerten Sperrhebel, der mittels des druckfe-33 35 743, gekennzeichnet durch eine form- 15 derbetätigten Kipphebels am Sperrzahnrad zum Einraschlüssige Sperre von Tastarm (9) und Kontaktplat- sten gebracht werden kann. Zu diesem Zweck hat der tenstange (2). Sperrhebel eine Längsnut in welcher ein Stift des Kipp-1. Device for measuring the size of slightly pression of the spring engages in a toothing that can be formed by deformable objects, in particular from tumor 5, a rack or a ratchet wheel (each verbungewebe, with a fixed and a movable one with the frame) .
Probe arm with contact plates, the distance of which is on a scale that is possible because the pressure-dependent lock of the probe arm is displayed and one of which should be possible over the entire measuring range via a contact plate rod relative to the probe arm, a ratchet wheel is expediently placed in front of a spring that transmits the pressure force io see that the movement of the probe arm inhibits and is displaceable, with the achievement of the desired special pressure force firmly mounted on the pointer rod of a dial gauge via the compression-related benefits with which the probe arm is coupled according to the patent, a locking lever rotatably mounted in the housing triggers a locking lever, which can be brought to a snap-in locking of the probe arm (9) and contact plates by means of the pressure-sensitive 33 35 743, characterized by a form-actuated rocker arm on the ratchet wheel. For this purpose the ten rod (2). Locking lever has a longitudinal groove in which a pin of the toggle
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19843410509 DE3410509C2 (en) | 1983-05-24 | 1984-03-22 | Device for measuring the size of easily deformable objects |
US06/612,568 US4599800A (en) | 1983-05-24 | 1984-05-21 | Caliper for measuring deformable objects |
US06/770,707 US4606128A (en) | 1983-05-24 | 1985-08-29 | Caliper for measuring deformable objects |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3318823 | 1983-05-24 | ||
DE19833335743 DE3335743C2 (en) | 1983-05-24 | 1983-10-01 | Device for measuring easily deformable objects |
DE19843410509 DE3410509C2 (en) | 1983-05-24 | 1984-03-22 | Device for measuring the size of easily deformable objects |
Publications (2)
Publication Number | Publication Date |
---|---|
DE3410509A1 DE3410509A1 (en) | 1985-09-26 |
DE3410509C2 true DE3410509C2 (en) | 1986-12-04 |
Family
ID=27191030
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19843410509 Expired DE3410509C2 (en) | 1983-05-24 | 1984-03-22 | Device for measuring the size of easily deformable objects |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE3410509C2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4013015A1 (en) * | 1990-04-24 | 1991-10-31 | Forschungsgesellschaft Fuer Dr | Thickness measuring appts. for paper quality determn. - has measurement element connecting end of sensing element remote from specimen measurement device |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4873771A (en) * | 1987-04-16 | 1989-10-17 | Schnyder & Cie | Slide gauge |
-
1984
- 1984-03-22 DE DE19843410509 patent/DE3410509C2/en not_active Expired
Non-Patent Citations (1)
Title |
---|
NICHTS-ERMITTELT |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4013015A1 (en) * | 1990-04-24 | 1991-10-31 | Forschungsgesellschaft Fuer Dr | Thickness measuring appts. for paper quality determn. - has measurement element connecting end of sensing element remote from specimen measurement device |
Also Published As
Publication number | Publication date |
---|---|
DE3410509A1 (en) | 1985-09-26 |
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Legal Events
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8364 | No opposition during term of opposition | ||
8327 | Change in the person/name/address of the patent owner |
Owner name: FORSCHUNGSZENTRUM JUELICH GMBH, 5170 JUELICH, DE |
|
8340 | Patent of addition ceased/non-payment of fee of main patent |