Riflescope High Speed Adjusting Elevation Assembly

• US 20090199452A1
• Filed: 01/30/2009
• Published: 08/13/2009
• Est. Priority Date: 01/31/2008
• Status: Active Grant

• Current Assignee: Lightforce USA, Inc.
• Original Assignee: Lightforce USA, Inc.
• Inventors: Huber, Jeff
• Granted Patent: US 8,104,217 B2
• Time in Patent Office: Days
• US Class Current: 42/125
• CPC Class Codes: F41G 1/38 Telescopic sights specially adapted for smallarms or ordnance telescopic sights in general G02B; Supports or mountings therefor

Abstract

A riflescope high speed, coarse and fine adjustment assembly that includes a riflescope with an erector tube located inside a scope body. Formed on the scope body is a mounting surface with a lead screw slot located adjacent to the proximal end of the erector tube. Located over the mounting surface is an adjustment plate with a perpendicularly aligned post member located thereon. Located inside the post member is a threaded lead screw with threaded head that connects to the post member and a lower non-threaded neck that extends into a slot formed on the mounting surface. The adjustment plate is affixed along its front edge while the plate'"'"'s opposite rear section is attached and free to move up or down. Disposed over the adjustment plate is a cover plate with a fine adjustment lever that selectively rises and lowers the rear edge of the cover plate. Attached to the cover plate is a detent plate. Attached over the detent plate is a coarse adjustment dial. During use, the coarse adjustment dial is rotated for the target distance and then the fine adjustment lever is rotated which causes the adjustment plate to finely adjust the length of the lead screw.

Claims

1. A riflescope high speed, coarse and fine adjustment assembly, comprising:

a. a riflescope with a scope body having an erector tube located therein, said scope body including a mounting surface, said mounting surface including a lead screw opening formed therein located adjacent to the proximal end an erector tube disposed inside said scope body;

b. an adjustment plate aligned over said mounting surface, said adjustment plate includes a front section and a rear section, said adjustment plate includes an upward extending, perpendicularly aligned rotating post member with a threaded bore formed therein;

c. a lead screw with a threaded head and a lower neck, said threaded head being connected to said threaded bore in said post member plate and said lower neck being inserted into said lead screw opening formed on said mounting surface, when said adjustment plate is positioned over said mounting surface, said lead screw being sufficient in overall length to press against the proximal end of said erector tube and threadingly connect to said post member;

d. a cover plate disposed over said adjustment plate, said adjustment plate being fixed at one end and able to move upward on the rear surface, said adjustment plate includes a fine adjustment lever attached to the rear section and able to be selectively adjusted to extend downward there and contact said adjustment plate thereby enabling the rear edge of said adjustment plate to be raised or lowered over said mounting surface, said cover plate also includes an O-ring assembly;

e. a detent plate attached over said cover plate and axially aligned on said post member, said detent plate includes at least one outward extending tooth;

f. a coarse adjustment dial disposed over said detent plate, said course adjustment dial includes an inner cavity with a plurality of splines formed on its inside surface that are engaged by said tooth on said detent plate; and

,

g. whereby when said coarse adjustment dial causingsaid lead screw to extend or retract into said scope body and more said erector tube to view a desired target distance, said fine adjustment lever on said cover plate may be selectively rotated which causes the rear section of said adjustment plate to raise or lower with respect to said cover plate thereby finely adjusting the length of said screw that extends into said scope body and move said erector tube to move up and down inside said scope body.

2. A zero stop adjustment mechanism for a riflescope that includes a perpendicularly aligned elevational dial and a windage dial both mounted on a turret, comprising:

a. a zero stop tab mounted on the elevational dial;

b. a zero stop tab mounted on the windage dial; and

,

c. a horizontally aligned lock arm mounted on said turrent, said lock arm includes a T-shaped tongue member with an upward and downward extending tabs, said lock arm being pivotally mounted at one end to said turret, said tabs being sufficient in length to simultaneously engage said stop tabs on said dials, said lock arm being biased thereby enabling said lock arm to be pressed inward so that said dials may move freely from their set zero points and when released allowing said dial to be relocked to the set zero points.

13. A riflescope high speed, coarse and fine adjustment assembly, comprising:

a. a riflescope with a scope body having an erector tube located therein, said scope body includes a mounting surface, said mounting surface includes a lead screw opening formed therein located adjacent to the proximal end of an erector tube disposed longitudinally inside said scope body;

b. a hinge plate aligned and positioned over said mounting surface, said hinge plate includes a front section and a beveled rear section, said rear section of said hinge plate being biased upward when positioned over said mounting surface, said hinge plate includes a perpendicularly aligned post member with a threaded bore formed therein;

c. a lead screw with a threaded head and a lower neck, said head being connected to said threaded bore in said post member of said hinge plate and said lower neck being inserted into said lead screw opening when said hinge plate is aligned over said mounting surface, said neck being sufficient in length to press against the proximal end of said erector tube;

d. a cover plate disposed over said hinge plate, said cover plate includes and O-ring assembly with a center bore through which said post member extends when said cover plate is aligned over said hinge plate, said cover plate includes a front edge and an opposite rear edge, said front edge being pivotally attached to said hinge plate, said cover plate includes a fine adjustment lever attached to the rear edge of said cover plate opposite the front edge of the cover plate pivotally attached to said hinge plate, said fine adjustment lever being coupled to a cam collar located below said cover plate, said cam collar being beveled so that when rotated, a force may be selectively exerted between said cover plate and said hinge plate thereby adjusting the space between the cover plate and said hinge plate;

e. a detent plate attached to said cover plate and axially aligned over said post member when said post member extends through said O-ring assembly on said cover plate, said detent plate includes at least one outward extending tooth;

f. a coarse dial aligned over said detent plate and said O-ring assembly, said coarse dial includes a fixing screw that locks said coarse dial onto the end of said post member that extends above said detent plate, said coarse dial includes an inside surface with a plurality of splines formed thereon capable of being engaged by said tooth on said detent plate; and

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g. whereby when said coarse dial is rotated, said lower neck of said lead screw moves up or down through said lead screw opening on said mounting surface to move said erector tube to a desired coarse position, and said fine adjustment lever on said cover plate is rotated which causes the rear edge of said hinge plate to pivot upward or downward with respect to said cover plate thereby finely adjusting the length of the lower head of the lead screw that extends into said scope body.