Procedure for manufacturing a radio telephone chassis and a chassis manufactured according to this procedure
First Claim
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1. A radio telephone chassis on which a first and second circuit board with components fixed thereto are mounted, comprising:
- a box-like body formed by cutting off square areas at the corners of a rectangular board blank to form marginal parts and bending the marginal parts by 90 degrees in the same direction, whereby a first set of side walls is formed;
the box-like body having a bottom formed by strip-like parts created by punching out areas of the board blank and bending nearly the entire the part of the remaining material strips 90 degrees about their longitudinal axes so that said parts are parallel to at least one side wall, the first circuit board being mounted on said bent strip-like parts; and
the height of said strip-like parts is equal to or greater than the height of the component extending farthest from the surface of the first circuit board.
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Abstract
A procedure for manufacturing a radio telephone chassis and for mounting circuit boards on the chassis, and a radio telephone chassis produced according to the procedure. The chassis is made from a sheet metal blank by suitably die cutting and bending it into a box-shaped body, the circuit boards attached thereto constitute one set of walls. Before mounting the circuit boards, the metal board is coated with a thin layer of tin.
45 Citations
14 Claims
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1. A radio telephone chassis on which a first and second circuit board with components fixed thereto are mounted, comprising:
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a box-like body formed by cutting off square areas at the corners of a rectangular board blank to form marginal parts and bending the marginal parts by 90 degrees in the same direction, whereby a first set of side walls is formed; the box-like body having a bottom formed by strip-like parts created by punching out areas of the board blank and bending nearly the entire the part of the remaining material strips 90 degrees about their longitudinal axes so that said parts are parallel to at least one side wall, the first circuit board being mounted on said bent strip-like parts; and the height of said strip-like parts is equal to or greater than the height of the component extending farthest from the surface of the first circuit board. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A procedure for manufacturing a radio telephone chassis and for mounting circuit boards on the chassis, comprising the steps of:
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cutting off square areas at the corners of a rectangular board blank outside of an imaginary line connecting inner corners on the board blank to form side and end marginal areas; punching out areas of the board blank within the imaginary line such that only strip-like parts are left over in the board blank in that area; bending the entire surface of the strip-like parts 90 degrees about their longitudinal axis so that said parts are parallel to at least one edge of the board blank; and bending the marginal parts by 90 degrees in the same direction as the strip like parts, whereby a box-like radio telephone chassis with side walls formed by the side and end marginal parts and a bottom with strip-like parts is created. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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Specification