Fixture with electrical connections and systems for separable mechanical attachment

• US 8,777,652 B2
• Filed: 03/29/2011
• Issued: 07/15/2014
• Est. Priority Date: 04/01/2010
• Status: Active Grant

• Current Assignee: Mbda France (MBDA)
• Original Assignee: Mdba France
• Inventors: Durand, Francois
• Primary Examiner(s): Johnson, Amy Cohen
• Assistant Examiner(s): Imas, Vladimir
• Application Number:
  US13/636,795
• Publication Number:
  US 20130012057A1
• Time in Patent Office: 1,204 Days
• Field of Search: 439/362, 439/675
• US Class Current: 439/362
• CPC Class Codes: F42B 15/36 Means for interconnecting rocket-motor and body section; Multi-stage connectors; Disconnecting means
• CPC Class Codes: F42B 15/38 Ring-shaped explosive elements for the separation of rocket parts systems for coupling or separating cosmonautic vehicles or parts thereof B64G1/64
• CPC Class Codes: H01R 13/516 Means for holding or embracing insulating body, e.g. casing , hoods
• CPC Class Codes: H01R 13/621 Bolt, set screw or screw clamp
• CPC Class Codes: H01R 13/6215 using one or more bolts
• CPC Class Codes: H01R 13/6395 for wall or panel outlets
• CPC Class Codes: H01R 13/658 High frequency shielding arrangements, e.g. against EMI [Electro-Magnetic Interference] or EMP [Electro-Magnetic Pulse] coaxial coupling devices specially adapted for high frequency H01R24/40; for flat or ribbon cable connectors H01R12/774; for coaxial cable H01R9/05

Abstract

The fixture intended for assembling two cylindrical components with a common longitudinal axis comprises two support plates attached respectively facing one another to the components at the periphery thereof, three electrical connectors, each in two parts, parallel to one another and aligned in a circular arc (AC) with respect to said longitudinal axis on said plates each of which bears the corresponding parts of the connectors, and, between the three connectors and parallel thereto, two separable-attachment systems fixedly connecting said plates by locking said parts of the connectors. Advantageously, the two separable-attachment systems are positioned offset from said circular arc (AC), on the inside thereof, and in projection perpendicular to said longitudinal axis, and lie in the triangular plane formed by the three electrical connectors aligned in a circular arc.

Claims

1. A fixture with electrical connections and separable mechanical attachment systems for assembling two cylindrical components with a common longitudinal axis, of the type comprising:

two support plates respectively inserted facing one another on the components substantially on the periphery of the latter;

at least three electrical connectors each in two parts, mounted in parallel between them and aligned in a circular arc (AC) with respect to said longitudinal axis on said support plates, each of them bearing the corresponding parts of the connectors, and

between the three electrical connectors, parallel to the latter, two separable mechanical attachment systems fixedly connecting said support plates by locking said parts of the connectors, wherein both separable attachment systems are located being offset from said circular arc (AC), on the internal side of the latter and are arranged, in a projection perpendicular to said longitudinal axis, in the triangular plane (P) formed by the three electrical connectors being aligned in a circular arc.

2. The fixture according to claim 1,

wherein it comprises moreover an axial abutment parallel to the separable mechanical attachment systems and arranged between the two support plates to form with both separable attachment systems a plane (P1) being parallel to the triangular plane (P) formed by the three electrical connectors.

3. The fixture according to claim 2,

wherein said axial abutment is located in a projection perpendicular to said longitudinal axis ahead the central electrical connector beyond said the circular arc (AC) on the side being external to the latter.

4. The fixture according to claim 2,

wherein said axial abutment is present under the form of a stem fixedly attached by the ends thereof between the two support plates.

5. The fixture according to claim 1,

wherein the two attachment systems are located closer to the two electrical end connectors.

6. The fixture according to claim 1,

wherein each separable mechanical attachment system comprises an attachment mechanism for said components and a control device for said attachment mechanism so as to cause the separation of said components,

said attachment mechanism being provided with an elastic deformation and comprising according to a longitudinal axis at least:

a stem having an enlarged end with a longitudinally slit spherical head being elastically deformable and fastened, on the other end thereof, to the plate of one of said components;

a needle being axially movable, an end of which is inserted into said spherical head of the stem to maintain it in an open position and the other end of which is connected to said control device; and

a body with an axial hole, fastened to the plate of the other component and surrounding said cooperating ends of the stem and the needle, while being axially attached to the latter and comprising, in said hole, an axial ring abutment against which said spherical head of the stem applies; and

said control device being moved with an axial displacement according to said longitudinal axis and acting on said needle of the attachment mechanism to deviate it from said enlarged end with spherical head of the stem and, through the action of said abutment of the body attached to said needle being moved, to switch said elastically deformable spherical head from its open position to a closed position and allow the relative passage of said stem through said abutment of the body.

7. The fixture according to claim 6,

wherein the attachment of said needle to said control device comprises a fastening nut receiving the threaded end of the needle opposite the one inserted into said stem, and a screw of said device, and around said screw, between said control device and the fastening nut, a compression spring is provided to axially hold forcibly in position said needle in the spherical head of the stem.

8. The fixture according to claim 6,

wherein said spherical head comprises at least two slots arranged in perpendicular longitudinal planes by separating said spherical head in four identical elastically deformable quarters, at the center of which the corresponding end of said needle can be inserted to hold it in an initial open position.

9. The fixture according to claim 6,

wherein said axial abutment of the body defines a spherical annular bearing being complementary of the spherical head and is formed by an annular element mounted around said stem and attached by screwing to said body.