Swan Richard E. (171 West St. East Bridgewater MA 02333)
인용정보
피인용 횟수 :
95인용 특허 :
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초록▼
A self-aligning flip-up mechanism for aiming devices for use with firearms. The mechanism folds the aiming device into the contour of the firearm during non-use. The mechanism is spring-loaded and flips into a vertical operational position with a simple movement of a finger or thumb. The mechanism c
A self-aligning flip-up mechanism for aiming devices for use with firearms. The mechanism folds the aiming device into the contour of the firearm during non-use. The mechanism is spring-loaded and flips into a vertical operational position with a simple movement of a finger or thumb. The mechanism causes the aiming device to self-align itself as it moves into an operational position. Vertical position repeatability is assured by the location of alignment surfaces in the sight which come into contact with alignment chamfers.
대표청구항▼
A self-aligning flip-up aiming sight attached to a firearm having forward and rearward portions, said firearm having minimally a receiver with a stock and barrel attached thereto, said barrel defining the forward portion of the firearm and said stock defining the rearward portion of the firearm, sai
A self-aligning flip-up aiming sight attached to a firearm having forward and rearward portions, said firearm having minimally a receiver with a stock and barrel attached thereto, said barrel defining the forward portion of the firearm and said stock defining the rearward portion of the firearm, said firearm longitudinal axis being defined as horizontal and running from said stock through said receiver to said barrel, said receiver being comprised of an upper receiver and a lower receiver, said upper receiver having a forward portion, a top portion and a rearward portion, said barrel being joined to the forward portion of the upper receiver, said sight protruding generally vertically from the firearm when being used and horizontally folded down into the firearm\s general contour when not in use, comprising: a base mounted on the rear of the receiver top portion, said base having a generally flat upper surface, a right side, a left side, front and rear, and two identical, vertical and parallel mounting tabs extending perpendicularly upward from the base upper surface, said tabs having rectangular shapes and lying in vertical parallel planes a predetermined distance apart and parallel to the base sides, said tabs each have a spring pin hole located in a forward lower quadrant with a common center and also a rotational spring pin hole located in a rearward upper quadrant also with a common center, said base front immediately forward, adjacent and between the tabs being raised forming an arc shaped section with a vertical height less than the vertical height of the tabs; a U-shaped alignment member attached to said base, said U-shaped alignment member having two vertical sides and a front face with a rectangular cutout having a remaining front top portion, each said vertical side having an inner surface, outer surface, rear, front, bottom and top, each said inner surface being defined as a facing surface of each said vertical side, said inner surfaces being in apposition in parallel planes, said vertical sides having a spring pin hole located in a forward lower quadrant with a common center and also a rotational spring pin hole located in a rearward upper quadrant also with a common center, said spring pin holes and rotational spring pin holes being located such that they share common centers with the spring pin and rotational spring pin holes in the mounting tabs, said remaining front top portion of the front cutout positioned nearly on the base front arc-shaped section; a spring pin inserted through both vertical sides of the U-shaped alignment member and the mounting tabs via the common center spring pin holes, whereby The U-shaped alignment member is attached to the mounting tabs by said spring pin installed through the common spring pin holes; a sight housing attached to said base, said sight housing having an upper section and a lower section, said upper section having an upper plate arrangement having two sides, a catch side and an adjustment side, and defining an upper aperture containing aiming means, said lower section having two opposing lower plate members positioned in vertical planes and defining a lower aperture, said lower plate members having a rotational spring pin hole formed therein with a common center, said lower aperture further bounded by two alignment surfaces, wherein in the sight protruding position, the sight housing lower aperture is positioned over the outer faces of the U-shaped alignment member such that the rotational spring pin holes in the plates share a common center with the rotational spring pin holes in the alignment plates of the U-shaped alignment member and the rotational spring pin holes in the mounting tabs; and spring means in said sight housing adapted to urge said sight housing in a forward direction from a folded-down horizontal position to a generally upright position.
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