JP2010249895A - Variable power device of collimation telescope - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a new collimation device that is small, is light in weight, reduces the projection degree in a mounted state to a gun, and, especially, allows a rifle to be easily stored in a holster while the collimation device is mounted to it. <P>SOLUTION: The collimation device includes a power supply section 2, a light source section 3, and a mirror lens 4. The mirror lens 4 is erected and fallen and is journaled storably. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a zooming device for an aiming telescope used by being mounted on a gun.

In an aiming telescope, it is difficult to find a target with a narrow field of view with high magnification. On the other hand, if a wide field of view with low magnification is used, it is easy to find a target. When shooting a target with a gun, it is preferable to increase the accuracy by increasing the zoom lens with a high magnification. However, it is difficult to find a target with a high zoom lens magnification. Therefore, it would be advantageous if the target can be found in a state where the zoom lens has a low magnification at which the target is easy to find, and can be shot at a high magnification instantly while the target is found.
A zooming device that simply switches between a wide field of view with a low magnification and a narrow field of view with a high magnification is known (for example, Patent Document 1).

JP 2008-256782 A

  However, in the prior art, a variable power lens is provided between the objective lens and the imaging lens, the variable power lens is held by a lens holder, the lens holder is attached to an arm, and the arm can be turned by a driving means. The lens holder is movably moved on the guide rail in the direction along the optical axis by the driving means.

In order to solve the above-described problems, the present invention provides a novel zooming device capable of instantaneously changing from a wide field of view with a low magnification to a narrow field of view with a high magnification by a very simple structure.
For this purpose, the zooming device of the sighting telescope of the present invention is provided with a zooming ring connected to the zoom cam cylinder, and gives the zooming ring an elastic force for rotating the zoom cam cylinder in the high magnification direction, The zooming ring is provided with a locking part that locks the stopper located at the high magnification position of the zoom cam cylinder, and an engagement / disengagement mechanism that stops the magnification change ring at the low magnification position. It is characterized in that the cam cylinder is instantaneously rotated and displaced to a high magnification position.

Further, the zooming device of the aiming telescope of the present invention provides the elastic force for rotating the zoom cam barrel in the high magnification direction by a winding spring having one end connected to the barrel main body and the other end connected to the zooming ring. To do.
Furthermore, in the magnifying telescope of the present invention, the low magnification is 1.0 and the high magnification is 4.0.

The magnifying telescope magnifying device of the present invention is provided with a magnifying ring connected to the zoom cam cylinder, and the magnifying ring is provided with an elastic force to rotate the zoom cam cylinder in the high magnification direction. The ring is provided with a locking portion for locking to a stopper positioned at the high magnification position of the zoom cam cylinder, and an engagement / disengagement mechanism for stopping the variable magnification ring at the low magnification position is provided. Since the cylinder is instantaneously rotated and displaced to a high magnification position, the structure can be changed from a wide field of view with a low magnification to a narrow field of view with a high magnification by an extremely simple structure. There is an effect that the target can be seen by the aiming telescope with a wide field of view, and the target can be easily seen by the aiming telescope by instantaneously changing to a high magnification.
In the sighting telescope zooming device according to the present invention, the elastic force for rotating the zoom cam barrel in the high magnification direction is applied by a winding spring having one end connected to the barrel main body and the other end connected to the zooming ring. Therefore, there is an effect that it is possible to obtain a zooming device having a very simple structure.

It is a perspective view which shows the low magnification state of this invention magnification changing apparatus. It is a front view of the low magnification state of an aiming telescope. It is a perspective view which shows the high magnification state of this invention magnification changing apparatus. It is a front view of a high magnification state of the aiming telescope. It is a front view of the variable magnification ring in a low magnification state.

Details of the present invention will be described below with reference to embodiments shown in the drawings.
Reference numeral 1 in the drawing denotes a zoom cam cylinder of the zoom mechanism, which has cam grooves 2 and 2 for approaching and separating a pair of lenses (not shown) constituting the zoom mechanism.
A zooming ring 3 is continuously connected to the rear end of the zoom cam cylinder 1. In order to connect the zoom cam cylinder 1 and the zoom ring 3, a locking recess 4 is formed in a part of the inner periphery of the zoom ring 3, and the zoom cam cylinder 1 projects into the locking recess 4. The provided locking pin 5 is fitted and engaged. The zoom ring 3 is connected to a zoom ring 6 indicated by an imaginary line, and the zoom ring 6 is rotated to rotate the zoom cam cylinder 1 to perform a zoom operation. In the illustrated embodiment, the zoom magnification is changed to 4.0, 3.5, 3.0, 2.5, 2.0, and 1.0.

An elastic force for rotating the zoom cam cylinder 1 in the direction of high magnification is applied to the zoom cam cylinder 1, and for this purpose, a winding spring 7 is provided in the illustrated embodiment. The winding spring 7 has one end 8 connected to the lens barrel main body 9 and the other end 10 connected to the zooming ring 3.
The zoom ring 6 is detachably provided with a stopper 11 in the form of a screw for stopping the rotation of the zoom cam cylinder 1 when the zoom cam cylinder 1 is rotated to the high magnification position, that is, the 4.0 times position. The zooming ring 3 is provided with a locking portion 12 that locks with the stopper 11.

  On the other hand, the zoom ring 6 and the zoom ring 3 are provided with an engagement / disengagement mechanism 13 for securing the zoom cam cylinder 1 at the low magnification position, that is, the 1.0 magnification position against the winding direction of the winding spring 7. It is provided. The engagement / disengagement mechanism 13 includes a locking pin 14 projecting rearward from the variable magnification ring 3 and a latch 15 pivotally supported on the shaft pin 16 so as to be engaged with and disengaged from the locking pin 14. The latch 15 is given elasticity in the direction of locking with the locking pin 14, and the push button 17 is pushed to unlock the locking pin 14 and the latch 15.

  FIGS. 1 and 5 show a low magnification, that is, a 1.0 × position, and the target can be seen as shown in FIG. 2 when looking through the aiming telescope. That is, since this state is a wide visual field, it is easy to find the target. In this state, when the push button 17 of the engagement / disengagement mechanism 13 is pressed, the engagement of the locking pin 14 and the latch 15 is released, and the zoom cam cylinder 1 is rotated at a high magnification by the elasticity of the winding spring 7. , The locking portion 12 of the variable magnification ring 3 is locked to the stopper 11, and the zoom mechanism is at a high magnification, that is, 4.0 times. In this state, the target appears as shown in FIG.

  As described above, according to the zooming device of the present invention, it is possible to find a target in a wide field of view with low magnification, instantly zoom into a narrow high magnification state, and to provide a zooming device with a very simple structure. There is.

DESCRIPTION OF SYMBOLS 1 Zoom cam cylinder 2 Cam groove 3 Variable magnification ring 4 Locking recessed part 5 Locking pin 6 Zoom ring 7 Winding spring 8 One end 9 Lens tube 10 Other end 11 Stopper 12 Locking part 13 Engagement / disengagement mechanism
14 Locking Pin 15 Latch 16 Axis Pin 17 Push Button

Claims (3)

A zooming ring is connected to the zoom cam barrel, and an elastic force is applied to the zoom ring to rotate the zoom cam barrel in the high magnification direction. A locking part that locks to the stopper that is positioned is provided, and an engagement / disengagement mechanism that stops the zooming ring at the low magnification position is provided. A sighting telescope zooming device characterized by: 2. The change of the aiming telescope according to claim 1, wherein an elastic force for rotating the zoom cam barrel in the direction of high magnification is applied by a winding spring having one end connected to the lens barrel body and the other end connected to a zoom ring. Double device. The magnifying telescope zooming device according to claim 1 or 2, wherein the low magnification is 1x and the high magnification is 4x.

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