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Home Coded Remote-control-unit

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 Remote control unit

Details
Inventors: Tanaka, Kouji;
Assignee: Alps Electric Co., Ltd. (Tokyo, JP)
Primary Examiner: Husar; Stephen F.
Assistant Examiner:
Attorney, Agent or Firm: Shoup; Guy W., Kivlin; B. Noel

A remote control unit which is simple in structure and free from the possibility of disconnection and has a stabilized illumination function. The remote control unit comprises a body case having a recess and having a plurality of push-button switches disposed thereon, and a door mounted for pivotal opening and closing motion on the body case and having a plurality of push-buttons thereon in an opposing relationship to the push-button switches so that, when the door is closed, they are each operated by operation of a corresponding one of the push-buttons. The body case has a rising portion having a light admitting hole perforated in a side wall thereof adjacent the recess, and a light emitting element is accommodated in the rising portion. When the door is open, light emitted from the light emitting element and admitted into the recess through the light admitting hole is projected to display portions of the push-button switches, but when the door is closed, such light is introduced to display portions of the push-buttons on the door by way of a light conducting member provided on a rear face of the door.

DETAILED DESCRIPTION It is an object of the present invention to provide a remote control unit which is simple in structure and free from the possibility of disconnection and has a stabilized illumination function.
In order to attain the object, according to the present invention, there is provided a remote control unit which comprises a body case having a recess defined by an upper wall thereof and having a rising portion provided by provision of the recess, a plurality of push-button switches provided for individual manual operation on the upper wall thereof at the recess, a door mounted for pivotal motion on the body case between a closed position in which the door is fitted in the recess and covers over the push-button switches and an open position in which the push-button switches are capable of being manually operated, a plurality of push-buttons disposed for individual manual operation on the door in such a manner as to oppose, when the door is in the closed position, to the push-button switches so that each of the push-button switches may be operated by operation of a corresponding one of the push-buttons, the rising portion of the body case having a light admitting hole perforated in a side wall thereof adjacent the recess, a light emitting element accommodated in the rising portion of the body case such that light emitted therefrom may be admitted into the recess through the light admitting hole so that, when the door is in the open position, such light may be projected to display portions of the push-button switches, and a light conducting member provided on a rear face of the door for introducing, when the door is in the closed position, light emitted from the light emitting element and admitted by way of the light admitting hole into the recess to display portions of the push-buttons on the door.
With the remote control unit, since the display portions of the push-button switches on the body case and the display portions of the push-buttons on the door can be illuminated by light from the single or common light emitting element, the number of light emitting elements is minimized, which achieves reduction of the production cost as much



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