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US 3,946,317 AGranted
Radio receiver
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsSatoshi Ishimaru, Shoitsu Nakano
Life of this patent
Estimating the term…
Abstract
A radio receiver has an antenna casing provided separately of the chassis and printed circuit board of the receiver and housing a rod-like antenna. The antenna casing has a stem portion rotatably and slidably extending through a bearing portion formed in the cabinet of the receiver to mount the antenna casing rotatably on the cabinet whereby the antenna may be oriented in a direction at which a desired radio wave is received best regardless of the orientation of the receiver relative to the radio wave.
Claims8
A radio receiver, comprising:
- a cabinet having a chassis mounted therein on which radio receiving electric circuit components are disposed;
- a recess formed in a top portion of said cabinet and having a tubular bearing portion extending inwardly of said cabinet from said recess;
- a casing having a rod-like antenna housed therein;
- an elongated stem portion fixed to and extending from said antenna casing into said bearing portion, said stem portion having at least one opening in a peripheral surface thereof and a portion which is radially offset from said peripheral surface;
- means supporting said stem portion in said bearing portion for rotational movement within said bearing portion and for movement between axially extended and axially retracted positions relative to said bearing portion, said stem portion support means including a shaft member secured at one end to said bearing portion and extending into said stem portion to interconnect said bearing and stem portions and to limit the range of axial movement of said stem portion relative to said bearing portion, and a spring member extending between said bearing and stem portions and biasing said antenna casing outwardly of said recess;
- and
- an operating member movably mounted on said cabinet and having one end portion biased toward said stem portion for engagement with said opening in said stem portion in said axially retracted position and for engagement with said radially offset portion in said axially extended position to limit the amount of rotation of said stem portion with respect to said bearing portion.
4 more elements
A radio receiver, comprising:
- a cabinet having a chassis mounted therein on which radio receiving electric circuit components are disposed;
- a recess formed in a top portion of said cabinet and having a tubular bearing portion extending inwardly of said cabinet from said recess;
- a casing having a rod-like antenna housed therein, said casing having an elongated stem portion extending into said bearing portion, said stem portion having a plurality of axial grooves formed on an outer peripheral surface thereof;
- means supporting said stem portion in said bearing portion for rotational and axial movement relative to said bearing portion, said stem portion and said antenna casing being movable between axially extended and axially retracted positions;
- and
- a resilient member mounted to said cabinet and having one end extending into engagement with one of said stem portion axial grooves in said axially extended position of said stem portion, said antenna casing being rotatable about the axis of said stem portion against the force applied by said resilient member.
3 more elements
Dependencies are inferred from the claim text.