The invention relates to an electromechanical primer cap, having an explosive mixture for the selective electrical or mechanical initiation of the explosive mixture, having an outer metal cup, and electrically conductive pole piece, a firing bridge support body made of an electrically insulating mat
The invention relates to an electromechanical primer cap, having an explosive mixture for the selective electrical or mechanical initiation of the explosive mixture, having an outer metal cup, and electrically conductive pole piece, a firing bridge support body made of an electrically insulating material, with a through-bore, on the upper side of which a firing bridge is arranged, and having a counter surface placed onto the explosive mixture, wherein a hole through which the pole piece protrudes is constructed in the vase of the metal cup. A portion of the explosive mixture lies on a contact surface of the pole piece, and the counter surface protrudes as far as the through-bore of the firing bridge support body, or into or through the bore, and continues to just above the contact surface.
대표청구항▼
1. An electromechanical primer cap, which may be selectively initiated electrically or mechanically, comprising: an outer metal cup having a cylindrical sidewall extending in an axial direction and a base having upper and lower major surfaces extending at an angle from the axial direction, the base
1. An electromechanical primer cap, which may be selectively initiated electrically or mechanically, comprising: an outer metal cup having a cylindrical sidewall extending in an axial direction and a base having upper and lower major surfaces extending at an angle from the axial direction, the base being provided with a hole therethrough extending in the axial direction through the base from the upper major surface of the base to the lower major surface of the base,an electrically conductive pole piece having a portion projecting into the hole in the base of the outer metal cup,an explosive mixture provided within the outer metal cup,a firing bridge support body made of an electrically insulating material having a ring shape having upper and lower major surfaces extending in a radial direction perpendicular to the axial direction and having a through-bore extending in the axial direction through the firing bridge support body from the upper major surface to the lower major surface, and comprising a firing bridge arranged on the upper major surface of the firing bridge support body, the firing bridge having first and second poles, wherein the pole piece is electrically connected to the second pole of the firing bridge, and the first pole of the firing bridge is electrically connected to the metal cup, anda counter surface placed onto the explosive mixture, wherein the counter surface protrudes downwardly in the axial direction such that a lower surface of the counter surface is level with the upper major surface of the firing bridge support body, or into the through-bore of the firing bridge support body or through the through-bore of the firing bridge support body, and continues towards an upper contact surface of the electrically conductive pole piece to provide a spacing between the lower surface of the counter surface and the upper contact surface of the electrically conductive pole piece in which a portion of the explosive mixture is provided contacting the lower surface of the counter surface and the upper contact surface of the electrically conductive pole piece, the spacing being configured to allow mechanical initiation of the explosive mixture. 2. The primer cap according to claim 1, wherein the counter surface has a point and an inner shell surface of the through-bore in the firing bridge support body encompasses the point of the counter surface with a spacing therefrom. 3. The primer cap according to claim 2, wherein the pole piece has a disk shape and comprises two planes offset with respect to each other in height, wherein the first plane forms the upper contact surface for the explosive mixture, and the second plane encompasses the point of the counter surface with a height offset with respect to the first plane, forming a contact area for the firing bridge support body. 4. The primer cap according to claim 3, wherein a metallic inner shell is inserted into the metal cup, pressing the firing bridge support body onto the contact area of the pole piece, and electrically coupling the first pole of the firing bridge to the metal cup. 5. The primer cap according to 4, wherein the counter surface is an anvil and the point is a funnel-shaped anvil point, the anvil is flush with the inner shell and has vent openings for ignition gases. 6. The primer cap according to claim 2, wherein the counter surface is an anvil and the point is a funnel-shaped anvil point. 7. The primer cap according to claim 1, wherein the lower major surface of the firing bridge support body and the through-bore of the firing bridge support body are provided with a metal layer and electrically connected to each other, and a metallic edge contact is arranged on an edge of the upper major surface of the firing bridge support body, and is electrically connected to the first pole of the firing bridge, and the second pole of the firing bridge is connected to the metal layer provided in the through-bore. 8. Small-caliber ammunition comprising: a cartridge, propellant powder in the cartridge, and a primer cap according to claim 1 operably connected to the propellant powder in the cartridge.
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이 특허에 인용된 특허 (7)
Ciccone Thomas Q. (Ocean City NJ) Doris ; Jr. Thomas A. (Sparta NJ), Combination percussion-electric primer.
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