EP0369157B1 - Reticle mounting - Google Patents

Reticle mounting Download PDF

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Publication number
EP0369157B1
EP0369157B1 EP89118658A EP89118658A EP0369157B1 EP 0369157 B1 EP0369157 B1 EP 0369157B1 EP 89118658 A EP89118658 A EP 89118658A EP 89118658 A EP89118658 A EP 89118658A EP 0369157 B1 EP0369157 B1 EP 0369157B1
Authority
EP
European Patent Office
Prior art keywords
frame
reticle
frame segments
mounting according
carrier part
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 - Lifetime
Application number
EP89118658A
Other languages
German (de)
French (fr)
Other versions
EP0369157A1 (en
Inventor
Heinz Kraus
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.)
Dr Johannes Heidenhain GmbH
Original Assignee
Dr Johannes Heidenhain GmbH
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 Dr Johannes Heidenhain GmbH filed Critical Dr Johannes Heidenhain GmbH
Publication of EP0369157A1 publication Critical patent/EP0369157A1/en
Application granted granted Critical
Publication of EP0369157B1 publication Critical patent/EP0369157B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41G—WEAPON SIGHTS; AIMING
    • F41G1/00—Sighting devices
    • F41G1/06—Rearsights
    • F41G1/12—Rearsights with line or mark other than notch

Definitions

  • the invention relates to a self-supporting target mark according to the preamble of claim 1.
  • Such target marks are used for example in riflescopes of firearms.
  • the target point of this target device is formed by said target mark, which is arranged in one of the optical focal planes within the target device.
  • This target mark can have a variety of shapes, such as that of a point, a bar or, in the most common form, a crosshair.
  • a self-supporting target for optical aiming devices which consists of a frame part and a crosshair part arranged within this frame part; the frame part is attached to a support part by gluing.
  • the frame part must be pressed onto the carrier part in order to ensure that the frame part lies flat on the carrier part.
  • the adhesive can escape via the inner edge of the carrier part, as a result of which the aperture determined by the inner edge of the carrier part can be impaired.
  • the object of the invention is to simplify the fastening process of the frame part on the carrier part in the case of a self-supporting target mark of the type mentioned in such a way that a flat support on the carrier part is possible without a pressing process.
  • the design of the frame part in the form of separate frame segments enables the frame part to be fastened to the carrier part by means of an adhesive with a flat support without a pressing process.
  • a cantilevered target is shown in a plan view, in which a crosshair part FT1 is arranged inside a circular frame part R1, which consists of four separate frame segments RS, each connected to the free ends of the crosshair part FT1.
  • the four frame segments RS are each connected to an external auxiliary frame H1 via tabs L1.
  • FIG. 2 shows in cross section and in FIG. 3 a top view of a carrier part T1 with a circumferential web S1, which has on its surface a support surface A1 for supporting the four frame segments RS.
  • the frame part R1 is fastened with the four frame segments RS of the target mark in the following way:
  • the bearing surface A1 of the web S1 of the carrier part T1 is pressed onto a thin adhesive layer, not shown, and then into a layer that is not shown centering device clamped.
  • the target mark also placed in this centering device is lowered concentrically onto the adhesive K on the support surface A1 of the carrier part T1.
  • the carrier part T1 is removed together with the target from the centering device and brought to an elevated temperature (for example 140 ° C.).
  • the adhesive K becomes so fluid that it penetrates into the perforations P through its surface tension and capillary action, so that the frame segments RS lie flat on the support surface A1 of the carrier part T1.
  • the carrier part T1 together with the target mark attached to the support surface A1, are cooled again to normal temperature. Since the carrier part T1 has a smaller coefficient of thermal expansion than that of the target mark, the target mark experiences sufficient pre-tension in a predetermined operating temperature range in order to hold the self-supporting crosshair part FT1 in one plane. In the perforations P there is a lattice structure, not shown, to increase the capillary action.
  • the auxiliary frame H1 with the tabs L1 is removed;
  • predetermined breaking points B1 are tapered at the connection points between the tabs L1 and the frame segments RS.
  • FT1 is between the crosshair part and the frame segments RS are provided with at least one spring element F1, which is verified by a longitudinal slot LS1.
  • the crosshair part FT1 and the frame segments RS are integrally formed together with the spring elements F1.
  • a metallic solder can also be used as the fixing agent.

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
  • Telescopes (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

In the case of such a reticle for optical sighting devices, a cross-wire part (FT1) inside a frame part (R1) is connected to frame segments (RS). Said frame segments (RS) have perforations (P) which are in alignment with a contact surface (A1) on a web (S1) of an annular carrier part (T1). The contact surface (A1) of the carrier part (T1) is provided with an adhesive (K), which in the event of an increased temperature penetrates through capillary action into the perforations (P), so that the frame segments (RS) bear in a planar fashion on the contact surface (A1). Due to different coefficients of thermal expansion of the carrier part (T1) and of the reticle, the inner cross-wire part (FT1) receives a pretension sufficient to achieve an unchanged flatness in the operating temperature range. <IMAGE>

Description

Die Erfindung betrifft eine freitragende Zielmarke gemäß dem Oberbegriff des Anspruches 1.The invention relates to a self-supporting target mark according to the preamble of claim 1.

Derartige Zielmarken werden beispielsweise in Zielfernrohren von Schußwaffen verwendet.Such target marks are used for example in riflescopes of firearms.

Bei einer optischen Zieleinrichtung wird der Zielpunkt dieser Zieleinrichtung durch die besagte Zielmarke gebildet, die in einer der optischen Brennebenen innerhalb der Zieleinrichtung angeordnet ist. Diese Zielmarke kann vielfältige Formen aufweisen, wie beispielsweise die eines Punktes, eines Balkens oder in der häufigsten Form die eines Fadenkreuzes.In the case of an optical target device, the target point of this target device is formed by said target mark, which is arranged in one of the optical focal planes within the target device. This target mark can have a variety of shapes, such as that of a point, a bar or, in the most common form, a crosshair.

Aus der DE-C1-34 43 322 ist eine freitragende Zielmarke für optische Zieleinrichtungen bekannt, die aus einem Rahmenteil und einem innerhalb dieses Rahmenteils angeordneten Fadenkreuzteil besteht; das Rahmenteil wird auf einem Trägerteil durch Klebung befestigt. Bei diesem Klebevorgang muß aber das Rahmenteil an das Trägerteil angedrückt werden, um eine plane Auflage des Rahmenteils auf dem Trägerteil zu gewährleisten. Bei diesem Andruckvorgang kann aber das Klebemittel über den Innenrand des Trägerteils austreten, wodurch die vom Innenrand des Trägerteils bestimmte Apertur beeinträchtigt werden kann.From DE-C1-34 43 322 a self-supporting target for optical aiming devices is known, which consists of a frame part and a crosshair part arranged within this frame part; the frame part is attached to a support part by gluing. During this gluing process, however, the frame part must be pressed onto the carrier part in order to ensure that the frame part lies flat on the carrier part. During this pressing process, however, the adhesive can escape via the inner edge of the carrier part, as a result of which the aperture determined by the inner edge of the carrier part can be impaired.

Der Erfindung liegt die Aufgabe zugrunde, bei einer freitragenden Zielmarke der genannten Gattung den Befestigungsvorgang des Rahmenteils auf dem Trägerteil derart zu vereinfachen, daß eine plane Auflage am Trägerteil ohne Andruckvorgang möglich ist.The object of the invention is to simplify the fastening process of the frame part on the carrier part in the case of a self-supporting target mark of the type mentioned in such a way that a flat support on the carrier part is possible without a pressing process.

Diese Aufgabe wird erfindungsgemäß durch die kennzeichnenden Merkmale des Anspruches 1 gelöst.This object is achieved by the characterizing features of claim 1.

Die mit der Erfindung erzielten Vorteile bestehen insbesondere darin, daß durch die Ausbildung des Rahmenteils in Form voneinander getrennter Rahmensegmente die Befestigung des Rahmenteils auf dem Trägerteil mittels eines Klebemittels mit planer Auflage ohne einen Andruckvorgang ermöglicht wird.The advantages achieved by the invention are, in particular, that the design of the frame part in the form of separate frame segments enables the frame part to be fastened to the carrier part by means of an adhesive with a flat support without a pressing process.

Vorteilhafte Ausbildungen der Erfindung entnimmt man den abhängigen Ansprüchen.Advantageous embodiments of the invention can be found in the dependent claims.

Ausführungsbeispiele der Erfindung werden anhand der Zeichnung näher erläutert.Embodiments of the invention are explained in more detail with reference to the drawing.

Es zeigen

Figur 1
eine Draufsicht auf eine freitragende Zielmarke;
Figur 2
einen Querschnitt;
Figur 3
eine Draufsicht auf ein Trägerteil und
Figur 4
einen Ausschnitt X der Zielmarke mit einem Ausschnitt des Trägerteils;
Show it
Figure 1
a plan view of a cantilever target;
Figure 2
a cross section;
Figure 3
a plan view of a carrier part and
Figure 4
a section X of the target with a section of the carrier part;

In Figur 1 ist in einer Draufsicht eine freitragende Zielmarke gezeigt, bei der ein Fadenkreuzteil FT1 im Inneren eines kreisringförmigen Rahmenteils R1 angeordnet ist, das aus vier voneinander getrennten Rahmensegmenten RS besteht, die jeweils mit den freien Enden des Fadenkreuzteils FT1 verbunden sind. Die vier Rahmensegmente RS sind jeweils über Laschen L1 mit einem außenliegenden Hilfsrahmen H1 verbunden.In Figure 1, a cantilevered target is shown in a plan view, in which a crosshair part FT1 is arranged inside a circular frame part R1, which consists of four separate frame segments RS, each connected to the free ends of the crosshair part FT1. The four frame segments RS are each connected to an external auxiliary frame H1 via tabs L1.

In Figur 2 ist in einem Querschnitt und in Figur 3 in einer Draufsicht ein Trägerteil T1 mit einem umlaufenden Steg S1 dargestellt, der auf seiner Oberfläche eine Auflagefläche A1 für die Auflage der vier Rahmensegmente RS aufweist.FIG. 2 shows in cross section and in FIG. 3 a top view of a carrier part T1 with a circumferential web S1, which has on its surface a support surface A1 for supporting the four frame segments RS.

Die Befestigung des Rahmenteils R1 mit den vier Rahmensegmenten RS der Zielmarke geschieht in folgender Weise: Die Auflagefläche A1 des Steges S1 des Trägerteils T1 wird auf eine auf einer nicht gezeigten Auflage befindlichen dünnen Klebemittelschicht aufgedrückt und anschließend in eine nicht dargestellte Zentriervorrichtung eingespannt. Die ebenfalls in diese Zentriervorrichtung eingelegte Zielmarke wird auf das Klebemittel K auf der Auflagefläche Al des Trägerteils T1 konzentrisch abgesenkt. Sodann wird das Trägerteil T1 mitsamt der Zielmarke der Zentriervorrichtung entnommen und auf eine erhöhte Temperatur (z.B. 140° C) gebracht. Bei dieser erhöhten Temperatur wird das Klebemittel K so leichtflüssig, daß es durch seine Oberflächenspannung und durch Kapillarwirkung in die Perforationen P eindringt, so daß die Rahmensegmente RS plan auf der Auflagefläche A1 des Trägerteils T1 aufliegen. Nach der Aushärtung des Klebemittels K werden das Trägerteil T1 mitsamt der auf der Auflagefläche Al befestigten Zielmarke wieder auf Normaltemperatur abgekühlt. Da das Trägerteil T1 einen kleineren thermischen Ausdehnungskoeffizienten gegenüber demjenigen der Zielmarke aufweist, erfährt die Zielmarke in einem vorgegebenen Gebrauchstemperaturbereich eine ausreichende Vorspannung, um den freitragenden Fadenkreuzteil FT1 in einer Ebene zu halten. In den Perforationen P befindet sich eine nicht gezeigte Gitterstruktur zur Erhöhung der Kapillarwirkung.The frame part R1 is fastened with the four frame segments RS of the target mark in the following way: The bearing surface A1 of the web S1 of the carrier part T1 is pressed onto a thin adhesive layer, not shown, and then into a layer that is not shown centering device clamped. The target mark also placed in this centering device is lowered concentrically onto the adhesive K on the support surface A1 of the carrier part T1. Then the carrier part T1 is removed together with the target from the centering device and brought to an elevated temperature (for example 140 ° C.). At this elevated temperature, the adhesive K becomes so fluid that it penetrates into the perforations P through its surface tension and capillary action, so that the frame segments RS lie flat on the support surface A1 of the carrier part T1. After the adhesive K has hardened, the carrier part T1, together with the target mark attached to the support surface A1, are cooled again to normal temperature. Since the carrier part T1 has a smaller coefficient of thermal expansion than that of the target mark, the target mark experiences sufficient pre-tension in a predetermined operating temperature range in order to hold the self-supporting crosshair part FT1 in one plane. In the perforations P there is a lattice structure, not shown, to increase the capillary action.

Nach der Befestigung der Zielmarke auf dem Trägerteil T1 wird der Hilfsrahmen H1 mit den Laschen L1 entfernt; zur leichteren Entfernung dieses Hilfsrahmens H1 dienen verjüngt Sollbruchstellen B1 an den Verbindungsstellen zwischen den Laschen L1 und den Rahmensegmenten RS.After the target has been attached to the carrier part T1, the auxiliary frame H1 with the tabs L1 is removed; For easier removal of this subframe H1, predetermined breaking points B1 are tapered at the connection points between the tabs L1 and the frame segments RS.

Um einen Bruch des vorgespannten Fadenkreuzteils FT1 durch Erschütterungen bei einem Schußvorgang auszuschließen, ist zwischen dem Fadenkreuzteil FT1 und den Rahmensegmenten RS wenigstens ein Federelement F1 vorgesehen, das durch einen Längsschlitz LS1 verifiziert ist. Das Fadenkreuzteil FT1 und die Rahmensegmente RS sind mitsamt den Federelementen F1 in integrierter Weise einstückig ausgebildet.In order to rule out breakage of the prestressed crosshair part FT1 due to vibrations during a shooting process, FT1 is between the crosshair part and the frame segments RS are provided with at least one spring element F1, which is verified by a longitudinal slot LS1. The crosshair part FT1 and the frame segments RS are integrally formed together with the spring elements F1.

Anstelle eines Klebemittels kann als Fixiermittel auch ein metallisches Lot verwendet werden.Instead of an adhesive, a metallic solder can also be used as the fixing agent.

Claims (8)

  1. Reticle cantilever mounting, in particular for optical sighting devices, with a frame section and a cross-line graticule arranged inside the frame section, wherein the frame section is mounted on the support section, characterised in that the frame section (R1) is composed of several frame segments (RS), which are separate from one another and are mounted by means of a fixing medium (K) on the support section (T1), which has a circumferential web (S1) with a bearing surface (A1), said frame segments (RS) having perforations (P) in the area of the bearing surface (A1) of the support section (T1).
  2. Reticle mounting according to Claim 1, characterised in that a grating structure is provided inside the perforations (P) of the frame segments (RS).
  3. Reticle mounting according to Claim 1, characterised in that the cross-line graticule (FT1) is connected to the frame segments (RS) via spring elements (F1).
  4. Reticle mounting according to Claims 1 and 3, characterised in that the cross-line graticule (FT1) and the frame segments (RS) form an integral structure together with the spring elements (F1).
  5. Reticle mounting according to Claim 1, characterised in that the frame segments (RS) are connected to a removable auxiliary frame (H1) by means of brackets (L1).
  6. Reticle mounting according to Claim 5, characterised in that the brackets (L1) have rated break points (B1).
  7. Reticle mounting according to Claim 1, characterised in that the fixing medium (K) is an adhesive.
  8. Reticle mounting according to Claim 1, characterised in that the fixing medium is metal solder.
EP89118658A 1988-11-15 1989-10-07 Reticle mounting Expired - Lifetime EP0369157B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3838621A DE3838621C1 (en) 1988-11-15 1988-11-15
DE3838621 1988-11-15

Publications (2)

Publication Number Publication Date
EP0369157A1 EP0369157A1 (en) 1990-05-23
EP0369157B1 true EP0369157B1 (en) 1995-01-25

Family

ID=6367177

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89118658A Expired - Lifetime EP0369157B1 (en) 1988-11-15 1989-10-07 Reticle mounting

Country Status (3)

Country Link
EP (1) EP0369157B1 (en)
AT (1) ATE117792T1 (en)
DE (3) DE3838621C1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005028002A1 (en) * 2005-06-17 2006-12-28 Audi Ag Target mark for detecting and evaluating contour of e.g. forming die, has base body including number of centering units, protrude from base body for self centering of mark within hole in measurement object

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10139806B4 (en) 2001-08-14 2005-09-22 Swarovski Optik Kg, Absam/Hall Telescope with tilted view
CN103278086B (en) * 2013-04-27 2016-04-06 浙江光策光电技术有限公司 Graticule

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3443322C1 (en) * 1984-11-28 1985-11-14 Dr. Johannes Heidenhain Gmbh, 8225 Traunreut Self-supporting aiming mark, especially for optical aiming devices

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005028002A1 (en) * 2005-06-17 2006-12-28 Audi Ag Target mark for detecting and evaluating contour of e.g. forming die, has base body including number of centering units, protrude from base body for self centering of mark within hole in measurement object

Also Published As

Publication number Publication date
DE3838621C1 (en) 1989-11-30
EP0369157A1 (en) 1990-05-23
ATE117792T1 (en) 1995-02-15
DE58908933D1 (en) 1995-03-09
DE8816756U1 (en) 1990-06-28

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