Broadhead for an arrow having expanding cutting blades and method of assembling same
First Claim
1. A broadhead for an arrow or the like comprising:
- a body portion having a circular cross-section and defining a proximal end and a distal end, a post member extending from the proximal end having an outer diameter less than an outer diameter of the body portion, and an outer peripheral surface protruding from the proximal end concentrically about said post member thereby defining a circular gap between said outer peripheral surface and said post member;
a pointed tip at the distal end of said body portion opposite said post member; and
a replaceable cutting blade assembly having at least one cutting blade movable from a retracted position to an expanded position, and a compressible ring for holding said at least one cutting blade, said compressible ring having a first uncompressed diameter larger than an outer diameter of said circular gap, said compressible ring being insertable within said circular gap to define a second compressed diameter to secure said cutting blade assembly to said body portion.
2 Assignments
0 Petitions
Accused Products
Abstract
A broadhead for an arrow having a mechanism for securing expanding cutting blades to the body portion or ferrule of the broadhead which insures true alignment of the longitudinal axis of the broadhead with the longitudinal axis of the cutting blades. A compressible ring holds the cutting blades adjacent their proximal ends to form a ring-cutting blade assembly. The ring is placed over a post member extending from the body portion. A washer may be provided for positioning between the ferrule and a cylindrical insert located at the distal end of the arrow shaft. Inserting the post member into the arrow shaft and insert forces the washer to move distally and apply pressure to the ring-cutting blade assembly. The pressure applied to the ring-cutting blade assembly compresses and wedges the ring within a circular gap formed at the point where the post member extends from the body portion to firmly secure the blades to the broadhead. An elastic ring may be provided around the cutting blades to maintain the cutting blades in an undeployed, retracted position. The retracted blade assembly may also be fixedly secured to enable the user to utilize the broadhead as a target point.
129 Citations
18 Claims
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1. A broadhead for an arrow or the like comprising:
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a body portion having a circular cross-section and defining a proximal end and a distal end, a post member extending from the proximal end having an outer diameter less than an outer diameter of the body portion, and an outer peripheral surface protruding from the proximal end concentrically about said post member thereby defining a circular gap between said outer peripheral surface and said post member;
a pointed tip at the distal end of said body portion opposite said post member; anda replaceable cutting blade assembly having at least one cutting blade movable from a retracted position to an expanded position, and a compressible ring for holding said at least one cutting blade, said compressible ring having a first uncompressed diameter larger than an outer diameter of said circular gap, said compressible ring being insertable within said circular gap to define a second compressed diameter to secure said cutting blade assembly to said body portion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for replacing a cutting blade assembly of a broadhead, the blade assembly having at least one cutting blade movable from a retracted position to an expanded position, and the broadhead having a body portion with a circular wall and a post member extending from a proximal end to form a circular gap between said circular wall and said post member, and where said cutting blades are held together at their respective proximal ends by a ring to form a ring-cutting blade assembly, said method for replacing the cutting blade assembly comprising the following steps:
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a. inserting said ring-cutting blade assembly over said post member; b. inserting a washer over said post member; c. inserting an insert over said post member; and d. moving said insert toward said ring-cutting blade assembly to force said washer against said ring cutting-blade assembly to compress and wedge said ring within said circular gap to secure said ring-cutting blade assembly to said broadhead.
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11. A broadhead for an arrow or the like comprising:
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a body member; a pointed tip of a distal end of said body member; and a cutting blade assembly removably secured to the body member, the blade assembly having a plurality of blades joined to each other by a ring member, said ring member being insertable into a portion of the body member to secure the blade assembly to the member, said ring member being compressible to fit into the portion of the body member to secure the blade assembly to the body member. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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Specification