Switching apparatus assembly structure
AssigneeIzumi Denki Corporation
InventorsTeizo Fujita, Haruo Kimura
Life of this patent
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Abstract
A switching apparatus assembly structure is disclosed in which a plurality of blocks including actuator blocks, contact blocks, a transformer blocks and direct power-supply adapter blocks are previously prepared as independent units which can be coupled together into a releasably interlocked structure, and two or more of desired ones of the above blocks are assembled to construct any desired one of smaller-size switching apparatus assemblies including a push button switch assembly, a selector switch assembly, a push button switch assembly of lockable type, a push button switch assembly with illumination, a selector switch assembly with illumination and a push button switch assembly of lockable type with illumination.
Claims29
A switching apparatus assembly structure having a central axis and comprising at least one first block provided with a contact mechanism and adapted to be coupled to others in a multi-stage fashion, and a second block provided with an actuator mechanism for actuating said contact mechanism, said first block and said second block being detachably coupled to each other in the direction of said central axis, wherein
- (A) said first block comprises:
- (a) a first casing of a generally box-like form having its central axis registering with said central axis,
- (b) at least one electrical contact means accommodated within said first casing,
- (c) external lead-out terminal means electrically connected to said contact means, and
- (d) first engaging means provided on said first casing for detachably coupling said first block to another block to be adjoined to said first block in the direction of said central axis;
- and wherein
- (B) said second block comprises:
- (a) a second casing having its central axis registering with said central axis, said second casing including a hollow box-shaped section and a hollow cylindrical section extending from said box-shaped section in the direction of said central axis, said box-shaped section opening in a direction remote from said cylindrical section with respect to said central axis to define a hollow space divided into a substantially circular central cavity and small cavities located at the four corners of said box-shaped section and communicating with said central cavity, the hollow space of said cylindrical section and the central cavity of said box-shaped section communicating with each other to define an accommodation space extending through said second casing in the axial direction,
- (b) manually-operated cylindrical actuator means movably accommodated within said accommodation space for turning on and off said contact means by actuating the same, and
- (c) second engaging means cooperating with said first engaging means for detachably coupling said second block to said first block adjoining thereto.
Dependencies are inferred from the claim text.