Adjusting turret for a long-range optical device

Abstract

An adjusting turret for a telescopic sight or reflex sight includes a rotary cap, which is rotatable about a rotary axis by applying a first torque, as an actuator for a spindle, wherein the rotary cap includes at least one rotation stop which is rotatable relative to the spindle about the rotary axis by applying a second torque that is smaller than the first torque, wherein the adjusting turret has at least one scale which is arranged on a part that is separate from the rotation stop.

Claims

1. An adjusting turret for a long-range optical device, wherein the adjusting turret comprises a rotary cap comprising first and second parts rotatable about a rotary axis by applying a first torque, as an actuator for a spindle, wherein the rotary cap comprises at least one anti-twist protection device which is rotatable relative to the spindle about the rotary axis by applying a second torque that is smaller than the first torque, wherein the adjusting turret has at least one scale which is arranged on a part that is separate from the anti-twist protection device, the anti-twist protection device protecting the first and second parts of the rotary cap from all torque which is produced unintentionally or without the knowledge of the user, and wherein in use if the rotary cap gets caught on a surface the anti-twist protection device can run on said surface like a wheel, whereby only the anti-twist protection device rotates but the first and second parts of the rotary cap are not rotated relative to the rotary axis.

2. The adjusting turret as claimed in claim 1, wherein the first part is connected in a rotationally secure manner to the spindle, wherein the anti-twist protection device is mounted rotatably on the first part connected rotationally securely to the spindle.

3. The adjusting turret as claimed in claim 2, wherein the anti-twist protection device is designed as a ring which runs annularly around the first part connected rotationally securely to the spindle, which ring can be fixed by at least one actuation lever relative to the first part.

4. The adjusting turret as claimed in claim 1, wherein the adjusting turret comprises one or more rings with at least one marking, wherein, if the adjusting turret has exactly one ring with at least one marking, the anti-twist protection device is structurally separate and can optionally be removed from said ring, and if the adjusting turret has a plurality of such rings the anti-twist protection device is structurally separate and can optionally be removed from all of said rings of the adjusting turret.

5. The adjusting turret as claimed in claim 1, wherein the anti-twist protection device forms an at least partial end face cover of the rotary cap and/or a cover of a radially outer side face of the rotary cap.

Description

(1) For a better understanding of the invention the latter is explained in more detail with reference to the following Figures.

(2) In a much simplified, schematic representation:

(3) FIG. 1 is a cross-section of a first variant of an adjusting turret according to the invention;

(4) FIG. 2 is a cross-section of a second variant of an adjusting turret according to the invention;

(5) FIG. 3 is a cross-section of a third variant of an adjusting turret according to the invention;

(6) FIG. 4 is a cross-section of a fourth variant of an adjusting turret according to the invention;

(7) FIG. 5 is a cross-section of a fifth variant of an adjusting turret according to the invention;

(8) FIG. 6 is a side view of the embodiment of FIG. 5 showing a scale; and

(9) FIG. 7 is a side view of an adjusting turret comprising one or more rings with at least one marking.

(10) First of all, it should be noted that in the variously described exemplary embodiments the same parts have been given the same reference numerals and the same component names, whereby the disclosures contained throughout the entire description can be applied to the same parts with the same reference numerals and same component names. Also details relating to position used in the description, such as e.g. top, bottom, side etc. relate to the currently described and represented figure and in case of a change in position should be adjusted to the new position.

(11) According to FIG. 1 an adjusting turret 1 according to the invention for a long-range optical device, in particular for a telescopic sight, comprises a rotary cap 2 which is rotatable about a rotary axis a. The rotary cap 2 is used as an actuator for a spindle comprising parts 3 and 6 in the shown example embodiment and can be rotated by the application of a first torque about the rotary axis a. According to the invention the rotary cap 2 comprises a rotation stop 4 which is rotatable relative to the spindle about the rotary axis a. For rotating the rotation stop 4 a smaller torque is needed than for activating the spindle, in this way in the case of a torque accidentally acting on the rotary cap 2 the rotation stop 4 is set into rotation, before the spindle can be activated. For example, if the rotary cap 2 comes into contact with a surface of an object, the rotation stop 4 can roll on said surface like a wheel and can thus prevent the unwanted or unintentional rotation of the spindle by means of the rotary cap 2.

(12) Furthermore, the rotary cap 2 comprises a first part 5 connected rotationally securely to the spindle. The part 5 of the rotary cap 2 can thus be connected rotationally securely to a part 6 of the spindle. By rotating the part 6, for example a spindle nut, the part 3 acting on an optical system, for example a screw, can be moved translationally along the rotary axis a and a position of the adjustable optical system can be changed. Of course, it is also possible for part 6 to perform a rotational movement and part 3 to perform a rotational and translational movement.

(13) To produce the rotationally secure connections of parts 5, 6 and the spindle for example set screws can be used. The rotation stop 4 is mounted rotatably in said example embodiment on the at least one first part 5 connected rotationally securely to the spindle.

(14) Furthermore, the adjusting turret 1 comprises at least one scale, not shown in FIG. 5, which is provided on a part separate from the anti-twist protection device 4. The part comprising said scale can consist of an external side face of part 5 annularly surrounding the rotary axis a. The scale is thus located on a ring 7.

(15) The ring 7 does not always need to be coupled to the part 5 or formed in one piece with the latter as in the shown example embodiment. Thus the ring 7 can also be a separate component which can be uncoupled from part 5 and can be displaced along the rotary axis a independently of the latter or can be rotated about the latter.

(16) Instead of one ring 7 however also a plurality of rings 7 can each be provided with at least one marking. See FIG. 7. If the adjusting turret 1 has exactly one ring 7 the anti-twist protection device 4 is structurally separate from said ring 7 and if the adjusting turret 1 has a plurality of rings 7 with markings the anti-twist protection device is structurally uncoupled from all of said rings 7.

(17) As shown in FIG. 1, the rotation stop 4 can have an end face cover of the rotary cap 2 and can form a cover for a radially outerlying side face of the rotary cap 2.

(18) FIG. 2 shows an additional and possibly independent embodiment of the adjusting turret, wherein the same reference numerals and component names are used for the same parts as for the preceding FIG. 1. To avoid unnecessary repetition, reference is made to the detailed description of the preceding FIG. 1.

(19) According to FIG. 2 the rotation stop 4 is designed as a ring rotating annularly about the part 5 connected rotationally securely to the spindle. In contrast to the embodiment shown in FIG. 1 here the rotation stop 4 does not fully cover an end face of the rotary cap 2.

(20) FIG. 3 shows a further and possibly independent embodiment of the adjusting turret, wherein the same reference numerals and component names are used for the same parts as in the preceding FIGS. 1 and 2. To avoid unnecessary repetition, reference is made to the detailed description of the preceding FIGS. 1 and 2.

(21) The embodiment shown in FIG. 3 differs from the one shown in FIG. 2 in that a fixing mechanism is provided for locking the rotation stop 4. It is particularly advantageous that the rotation stop 4 designed as a peripheral ring can be locked by means of at least one actuation lever 8. In this way if necessary the rotation stop 4 can be locked in a simple way, if desired by a user. The actuation lever 8 can engage in a locking position, for example in a corresponding recess 9 of the rotation stop and can fix the rotation stop 4 in the locking position relative to part 6 of the spindle. As illustrated the rotation stop 4 is uncoupled in a release position from part 6 of the spindle relative to a rotation about the rotary axis a and can rotate independently of the spindle.

(22) It should be noted at this point that the shown actuation lever 8 is simply an example of a design and the latter can also be designed differently, for example in the form of a pivot lever or rocker lever.

(23) In addition, it should be noted that in all other shown embodiments an actuation lever 8 can also be used.

(24) FIG. 4 shows a further and possibly independent embodiment of the adjusting turret, wherein the same reference numerals and component names are used for the same parts as in the preceding Figures. To avoid unnecessary repetition, reference is made to the detailed description of the preceding figures.

(25) FIG. 4 differs from the embodiment shown in FIG. 2 mainly in the shape of part 6, which here comprises a head 10 which forms a form-fitting closure with the rotary cap 2. The form-fitting closure can be designed so that the user can remove and mount the part 4 without causing any damage.

(26) FIG. 5 shows a further and possibly independent embodiment of the adjusting turret, wherein the same reference numerals and component names are used for the same parts as in the preceding Figures. To avoid unnecessary repetition, reference is made to the detailed description of the preceding figures.

(27) As shown in FIG. 5, the rotation stop 4 is held between the head 10 and the part 5 and forms a cover for exposed parts of the rotary cap 2, in this case the end face and side faces of the rotary cap 2. By means of the slight rotatability of the rotation stop 4 about the rotary axis a independently of the spindle very effective rotational protection can be achieved for the rotary cap 2.

(28) According to FIG. 5 the rotation stop 4 can be centered by part 6 of the spindle and fixed against part 5 of the rotary cap 2.

(29) Lastly, as a point of formality it should be noted that for a better understanding of the structure the elements have in part not been illustrated to scale and/or have been enlarged and/or reduced in size.

LIST OF REFERENCE NUMERALS

(30) 1 adjusting turret 2 rotary cap 3 part of the spindle 4 rotation stop 5 part of the rotary cap 6 part of the spindle 7 ring 8 actuation lever 9 recess 10 head a rotary axis