JPH0132014Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a centering indicator device for a scope with an objective attachment, which forms a centering indicator when the objective attachment is not attached and a centering indicator when the objective attachment is attached.

Generally, in order to increase the magnification of a rifle scope, an objective attachment is attached to the front of the objective lens of the rifle scope, but when the objective attachment is attached, the center of the lens becomes misaligned, making it impossible to aim the scope correctly. That is, the above-mentioned misalignment is caused by misalignment of the lens that occurs during lens processing, or eccentric attachment that occurs when the objective attachment is screwed into the scope body.

As a result, the sight that existed before attaching the objective attachment cannot be used as is after attaching the objective attachment, so the aiming line must be finely adjusted vertically and horizontally using a fine movement receiver to obtain a new aim. The rifle scope had the disadvantage that it was difficult to center the rifle because it did not have an adjustment device with an index scale for this fine adjustment, making it difficult to aim correctly.

The present invention provides a centering indicator device for a scope with an objective attachment that can perform centering in a short time.

Next, the present invention will be explained with reference to the drawings.The present invention includes a scale ring 4 with an index scale 3 attached to the upper surface of the cylindrical fine movement bearing 2 that holds the adjustment shaft 1, and a scale plate 6 also equipped with an index scale 5. Mounted on the same level as the upper surface of the scale ring, the index scale of either the scale ring or the scale plate is used as an index when the objective attachment 7 is not attached, and the other index scale is used as an index when the objective attachment 7 is attached. This is a centering indicator device for a scope with an objective attachment, characterized in that a dial 9 on which a reference line 8 is displayed is fixedly provided on the upper surface of the adjustment shaft 1.

In the figure, 10 is a scope, 11 is an objective lens of the scope, 12 is a mounting bolt, 13 is an objective lens of an objective attachment, and 14 is a cap for protecting the indicator device.

One embodiment of the assembly of the scale ring 4 and scale plate 6 of the present invention will be described.
5 is engraved, and first center the scope 10 without the objective attachment 7 attached by finely adjusting the rotation of the two adjustment shafts 1 and 1 (in this case, center the scope 10 that is not attached to the objective attachment 7). On axis, forward 30
(This is done by placing an aiming specimen at a distance of approximately , 4 are aligned, and in this state, the scale ring is fixedly attached to the shoulder of the fine movement bridge 2 by means of gluing or the like. Next, attach the objective attachment 7 to the scope 10 and adjust the adjustment shafts 1, 1 as described above.
Perform centering with the rotational fine adjustment of and align the zero point of the index scale of the scale plate with the reference lines 8, 8 of the dials 9, 9 of the adjustment shafts 1, 1 when the adjustment is completed, and in this state, adjust the scale plate. is fixedly attached to the stepped part formed on the upper half of the scale ring by gluing or other means, and the scale ring and the upper surface of the scale plate are flush with each other to ensure the scale alignment with the dial. There is. Note that the inner diameter of the scale plate may be formed to be smaller than the outer diameter of the scale ring, and the attached state of both may be fixed in a fitted manner.

Since the present invention has the above configuration, if the objective attachment is not attached to the scope, accurate centering can be performed in a short time by simply setting the reference line of the dial to the zero point of the index scale of the scale ring. When installed, centering can be performed in the same manner as described above simply by aligning the reference line of the dial with the zero point of the index scale on the scale plate. In addition, in this invention, the scale plate and scale ring are separate, and the centering is performed separately using the aiming specimen, so even in scopes where the misalignment width varies depending on the scope, the scale plate and scale ring can be easily aligned. Since assembly can be carried out by simply shifting and fixing the relative positions as appropriate, the assembly work is significantly simpler compared to a structure in which two types of scales are later engraved on a single plate.

Therefore, this invention allows for one-touch centering with or without an objective attachment.
Furthermore, it has practical effects such as improving work efficiency when assembling the scope.

[Brief explanation of the drawing]

Figure 1 is a vertical cross-sectional view of the indicator device with the cap removed, Figure 2 is a partially vertical side view of the scope with the objective attachment attached, Figure 3 is a cross-sectional view taken along the - line in Figure 2, The figure is a plan view of the index device section. 1... Adjustment axis, 2... Fine movement receiver, 3, 5... Index scale, 4... Scale ring, 6... Scale plate, 7... Objective attachment, 8... Reference line, 9... Dial.

Claims (1)

[Scope of utility model registration request] A scale ring 4 with an index scale 3 is attached to the upper surface of the cylindrical fine movement bearing 2 that holds the adjustment shaft 1, and a scale plate 6, also equipped with an index scale 5, is attached at the same level as the upper surface of the scale ring. The index scale of either the scale ring or the scale plate is used as the index when the objective attachment 7 is not attached, the other index scale is used as the index when the objective attachment is attached, and a reference line 8 is displayed on the upper surface of the adjustment shaft 1. A centering indicator device for a scope with an objective attachment, characterized in that a dial 9 is fixedly installed.