Contact spring assembly, especially for an antenna amplifier
A contact spring assembly has a contact plate with a window in which a contact spring is received, the contact spring having bent strips engageable with an antenna amplifier and an antenna amplifier structure. The contact spring is fixed at one end and movable at its other end on the support plate.
1. A contact spring assembly for making an electrical contact between two members, said assembly comprising:
a support plate located between said members and having a window;
a one-piece sheet-metal contact spring on said support plate formed with two spaced, flat, and coplanar end regions flanking the window and at least two oppositely bowed bend regions extending across the window between and unitary with the end regions and projecting toward and engageable with said members, the bend regions of the contact spring extending in opposite directions toward said members;
an attachment at one side of said contact spring fixing one of the end regions of said contact spring to said support plate; and
means including a support at the opposite side of the contact spring for receiving the other of the end regions and enabling movement of the other end region generally only in a plane of the end regions as the bend regions are elastically deformed.
2. The contact spring assembly defined in claim 1 wherein said contact spring is a stamping of spring metal in which a plurality of parallel slits are punched to separate respective bend regions from one another, said bend regions being bent alternately to opposite sides.
3. The contact spring assembly defined in claim 1 wherein said support is a slit formed in said support plate and movably receiving the other end region of said contact spring.
4. The contact spring assembly defined in claim 3 wherein at said one side of said contact spring, said support plate is formed with at least one first element and said contact spring is formed with at least one second element mating with said first element to form said attachment, or said contact spring is adhesively bonded to said support plate to form said attachment.
5. The contact spring assembly defined in claim 4 wherein one of said elements is a hole and the other of said elements is a projection fitting in said hole.
6. The contact spring assembly defined in claim 5 wherein said projection is deformable to anchor said contact spring on said support plate.
7. The contact spring assembly defined in claim 5 wherein said projection has a polygonal cross section.
8. The contact spring assembly defined in claim 5 wherein said hole is formed in said contact spring and said projection is formed on said support plate.
9. The contact spring assembly defined in claim 8 wherein said support plate is formed at said one side with a ledge set back from a surface of said support plate, said one side of said contact spring resting upon said ledge, said projection being formed on said ledge.
10. The contact spring assembly defined in claim 9 wherein said projection is formed with a tapered end facilitating insertion through said hole.
11. The contact spring assembly defined in claim 1 and interposed between an antenna amplifier forming one of said members and a contact location on a window of an automobile, and wherein at said one side of said contact spring, said support plate is formed with at least one first element and said contact spring is formed with at least one second element mating with said first element to form said attachment, or said contact spring is adhesively bonded to said support plate to form said attachment.
12. The contact spring assembly defined in claim 11 wherein said projection is deformable to anchor said contact spring on said support plate.
13. The contact spring assembly defined in claim 11 wherein said projection has a polygonal cross section.
14. The contact spring assembly defined in claim 11 wherein said contact spring is a stamping of spring metal in which a plurality of parallel slits are punched to separate respective bend regions from one another, said bend regions being bent alternately to opposite sides.
15. The contact spring assembly defined in claim 11 wherein one of said elements is a hole and the other of said elements is a projection fitting in said hole.
16. The contact spring assembly defined in claim 15 wherein said hole is formed in said contact spring and said projection is formed on said support plate.
17. The contact spring assembly defined in claim 16
wherein said support plate is formed at said one side with a ledge set back from a surface of said support plate, said one side of said contact spring resting upon said ledge, said projection being formed on said ledge.
18. The contact spring assembly defined in claim 17 wherein said projection is formed with a tapered end facilitating insertion through said hole.