Connection block assembly for a waterproof switch

Details Connection block assembly for a waterproof switch Connection block assembly for a waterproof switch

2000-04-18

2001-03-27

Bradley, Paula (Department: 2833)

Electrical connectors

With insulation other than conductor sheath

Plural-contact coupling part

C200S307000

Reexamination Certificate

active

06206733

ABSTRACT:

BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a connection block assembly for a waterproof switch, more particularly, to a connection block assembly to which other parts can be attached.
2. Description of Related Art
A conventional waterproof switch either has a single switch body or can be connected to two switches by a connection block assembly.
For example, as shown in
FIG. 7
, a waterproof switch (
40
) is connected to two switch bodies (
70
) by a conventional connection block assembly (
60
). The waterproof switch (
40
) has two prongs (
42
,
43
) extending from one end; and the conventional connection block assembly (
60
) contains two holes (
62
,
63
) corresponding to the two prongs (
42
,
43
). The conventional connection block assembly (
60
) has a pair of flanges (
64
) extending from each side. Two pins (
66
) extend from the connection block assembly (
60
) between the pair of flanges (
64
). An opening (
642
) is defined in each flange (
64
).
The switch body (
70
) to be connected to the conventional connection block assembly (
60
) has a protrusion (
72
) corresponding to each opening (
642
) of the conventional connection block assembly (
60
) and a through hole (
74
) corresponding to each pin (
66
) of the conventional connection block assembly (
60
).
Though the conventional connection block assembly (
60
) is capable of connecting the waterproof switch (
40
) to two switch bodies (
70
), some drawbacks are found as follows:
a. Since the flanges (
64
) and pins (
66
) are requisite parts of the conventional connection block assembly (
60
), the configuration is complicated, causing the cost to be high and the manufacturing procedure to be complicated.
b. A switch body (
70
) is fixedly squeezed between each pair flanges (
64
); and each protrusion (
72
) on the switch body (
70
) is locked in the opening (
642
) in the flange (
64
) of the conventional connection block assembly (
60
). Thus, when a switch body (
70
) is to be removed from the conventional connection block assembly (
60
), the flanges (
64
) must be bent outwards to release the switch body (
70
) protrusions (
72
) from the openings (
642
) in the conventional connection block assembly(
60
) flanges (
64
). Therefore, detaching the switch bodies (
70
) from the conventional connection block assembly (
60
) is very troublesome. The possibility also exists that the flanges (
74
), after being pushed outwards, may be permanently deformed such that the protrusions (
72
) cannot be locked again.
Therefore, an alternate configuration that ensures that the connection block assembly can be effectively reassembled after detaching the switch bodies is necessary.
SUMMARY OF THE INVENTION
The objective of the present invention is to provide a connection body for a waterproof switch, which can be reliably and easily reassembled after the switch bodies have been detached.
To achieve the objective, the connection block assembly for a waterproof switch in accordance with the present invention comprises two prong holes and locking grooves. The prong holes are defined on one surface of the connection block assembly and correspond to the prongs of a waterproof switch. Two locking grooves are defined on each side of the connection block assembly and correspond to locking rails extending from the side of the switch body such that the waterproof switch can be connected to two switch bodies by the connection block assembly.
Other objectives, advantages, and novel features of the invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.


REFERENCES:
patent: 3267246 (1966-08-01), Manning
patent: 3681552 (1972-08-01), Bailey
patent: 4960393 (1990-10-01), Stoll et al.

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