Sight scope

• US 5,499,456 A
• Filed: 03/03/1995
• Issued: 03/19/1996
• Est. Priority Date: 03/03/1994
• Status: Expired due to Fees

• Current Assignee: Asia Optical Company Incorporated
• Original Assignee: Asia Optical Company Incorporated
• Inventors: Tomita, Saburo
• Primary Examiner(s): Fulton, Christopher W.
• Application Number:
  US08/398,074
• Time in Patent Office: 382 Days
• Field of Search: 33/245, 33/246, 33/247, 33/248, 33/233, 359/399, 359/425, 359/426, 359/427, 359/428, 356/247
• US Class Current: 42/122
• CPC Class Codes: G02B 23/00 Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices

Abstract

In a sight scope, an erect sleeve received in a scope body is inclined with respect to the axis of the scope body by an inclination adjusting mechanism. A movable sleeve capable of moving axially of the erect sleeve is disposed within the erect sleeve, and an erect lens system is supported by this movable sleeve. A position adjusting mechanism for moving the movable sleeve axially of the scope body includes a rotary member. This rotary member is allowed to extend all the way through the scope body and supported for turning about an axis extending radially of the scope body. The rotary member has a control handle formed on an external end of the rotary member and a cam member disposed on an internal end of it. A follower is received in the scope body. This follower is moved axially of the scope body in accordance with rotation of the cam member. The movement of this follower is transmitted to the movable sleeve through an association sleeve which is fitted to the outer periphery of the erect sleeve.

Claims

1. A sight scope comprising:

(a) a sleeve-like scope body having an objective lens system on a front end portion thereof and an eyepiece lens system on a rear end portion thereof;

(b) an erect sleeve received in said scope body;

(c) an inclination adjusting mechanism for inclining said erect sleeve with respect to an axis of said scope body;

(d) a movable sleeve axially movably disposed within said erect sleeve and adapted to support an erect lens system; and

(e) a position adjusting mechanism for moving said movable sleeve axially of said scope body, said position adjusting mechanism including;

(i) a rotary member pierced into and supported by said scope body, said rotary member being capable of turning about an axis extending radially of said scope body;

(ii) a control handle mounted on an external end of said rotary member;

(iii) a cam member disposed at an internal end of said rotary member;

(iv) a follower received in said scope body, said follower being in association with said cam member and moved axially of said scope body in accordance with rotation of said cam member; and

(v) association means for associating said follower with said movable sleeve, so that said movable sleeve moves after said follower.

2. A sight scope according to claim 1, in which said cam member is in the form of an eccentric cam, and said follower is biased forwardly by biasing means such that a front end of said follower is in contact with a peripheral surface of said cam member.

3. A sight scope according to claim 2, in which said follower is of a circular-cylindrical configuration and slideably fitted to an inner periphery of said scope body.

4. A sight scope according to claim 3, in which said association means includes an association sleeve fitted to an outer periphery of said erect sleeve, said association sleeve being connected to said movable sleeve through a pin extending radially of said association sleeve, said pin being received in a slit formed in said erect sleeve and extending axially.

5. A sight scope according to claim 4, in which said association sleeve has a flange formed on a rear end thereof, said association sleeve being biased by said biasing means such that said flange is in contact with a rear end of said follower, thereby transmitting a force of said biasing means to said follower.

6. A sight scope according to claim 5, in which said association sleeve has an annular step portion formed on an intermediate portion thereof and said erect sleeve has a spring retainer portion formed on the outer periphery of said erect sleeve at a location backward from said step portion, said biasing means being of a coil-spring-like configuration and wound around the outer periphery of said erect sleeve, said biasing means being interposed in a compressed state thereof between said step portion of said association sleeve and said spring retainer portion of said erect sleeve.

7. A sight scope according to claim 1, in which said scope body is formed thereon with a mounting portion, said inclination adjusting mechanism for inclining said erect sleeve vertically being disposed on an upper part of said mounting portion, another inclination adjustment mechanism being disposed at a left or right part of said mounting portion and adapted to incline said erect sleeve horizontally, said rotary member of said position adjusting mechanism being disposed on the remaining left or right portion of said mounting portion.