Electricity: circuit makers and breakers – Electric switch details – Cases and bases
Patent
1998-08-17
2000-04-25
Luebke, Renee S.
Electricity: circuit makers and breakers
Electric switch details
Cases and bases
200296, H01H 908
Patent
active
060546603
DESCRIPTION:
BRIEF SUMMARY
This invention relates to a control or signaling device such as a push button assembly.
This type of device comprises firstly a body that fits into an orifice in a support wall, for example a panel or desk, and secondly a socket in which an electrical block is placed removably, particularly a contact block, using assembly means associated with corresponding assembly faces and frequently composed of click fit elements.
Known devices of this type do not always have the required assembly stiffness, and it will be desirable to improve them so that a fitter can easily engage and fix the contact block under the socket; similarly, it will be desirable for him to be able to easily stack another contact block with satisfactory stiffness under the previous block.
The purpose of the invention is to make it easy for the fitter to assemble a contact block under a socket on an electrical control or signaling device, and for the assembly thus obtained to be sufficiently stiff.
According to the invention: their corresponding assembly faces, and a complementary shaped retaining shoulder that work together to position and hold the block in place, hook acted upon by elastic means parallel to the assembly face cooperating with a latched housing formed in the socket.
The hook may advantageously be composed of a U-shaped metal part, the ribs of which are approximately aligned with the main side walls of the electrical block. Furthermore, it may be useful to orient the rigid tenon and the hook in the same direction, which reduces the size of the block and makes the installation more intuitive, while the elements with cooperating shapes may beneficially be provided on assembly faces in order to prevent the block from sliding with respect to the socket when a force is exerted on the electrical block perpendicular to the device support wall.
The following description of an embodiment of the invention relates to the attached drawings and explains the advantages and results of the invention.
FIG. 1 is a sectional elevation of a push button assembly according to the invention.
FIG. 2 is a perspective bottom view of a stack of two contact blocks assembled with a socket in an assembly according to FIG. 1.
FIG. 3 is a partial exploded sectional view of the stack in FIG. 2 along plane III--III.
FIG. 4 is a partial exploded view of the stack in FIG. 2 along direction F.
FIG. 5 shows a perspective exploded view of a detail of the contact block.
FIG. 6 shows a detail of FIG. 1 at larger scale.
The electrical control or signaling device illustrated on the figures is a push button comprising a body 10 fitted with a head 11 and a tubular part 12 with center line X1 and diameter smaller than the head width. This part may be installed with a seal and/or label (not shown) on an external face 13a of a thin support wall 13, for example a metallic wall, which belongs to an enclosure such as a desk, cabinet, etc. The wall 13 is oriented along a plane S perpendicular to X1 and comprises an orifice 13b in which the tubular part 12 of the push button fits with a certain clearance, this part for example including the mobile part of the button push rod.
A socket 20, in general with a polygonal shape but preferably rectangular, is associated with the push button on the back of the wall 13, in other words on the side of the internal face 13c of wall 13, in order to removably support the detachable electrical blocks 30, such as switch contact blocks, indicating light blocks or auxiliary blocks. The socket is placed on the tubular part 12 and is attached to it by shaped elements that fit together for example by interlocking or click fitting, to prevent the socket from being extracted along direction X1. The socket 20 has a central opening 21 (see FIG. 2) to enable free passage of the tubular part 12 of the push button, and it is also held in place in contact with the internal face 13c of wall 13 by means of a latching slide 22 acted upon by a control screw (not shown). An element 14 of the push button, moving along direction X1, cooperates with an actuating pi
REFERENCES:
patent: 3568795 (1971-03-01), Mentel et al.
patent: 3676630 (1972-07-01), Dennison
patent: 4250368 (1981-02-01), Johnsston et al.
patent: 4587391 (1986-05-01), Harper
patent: 5768091 (1998-06-01), Vinson et al.
patent: 5800206 (1998-09-01), Benni
Luebke Renee S.
Schneider Electric SA
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