US2116675A - Switch - Google Patents

Description

May 10, 1938. w FRANK r L I 2,116,675

SWITCH Filed June 19, 1936 Q gvz rg BY 1 C 7 @"fTORNEY.

Patented May 10, 1938 SWITCH William H. Frank and Joseph A. Messing, Detroit, Mich.

Application June 19, 1936, Serial No. 86,034

1 Claim.

This application relates to details of switch constructions and discloses details designed for use in a switch of the character disclosed in an application, Serial No. 56,229, filed December 26,

1935, by William H. Frank and Joseph A. Messing.

A principal object is .to provide a novel handle construction which enables the switch handle to be assembled easily with respect to the C-shaped carrier strap of the switch and which provides a fixed pivotal mounting and fulcrum for the handle and which also provides an insulating cover for the exposed end of the handle.

The details hereof are shown in the appended drawing.

In this drawing,

Fig. 1 illustrates the switch in general and with a means for maintaining the handle in assembly with the carrier and also serving as an insulating resilient knob for the handle;

Fig. 2 shows a step in the assembly of the handle and the carrier.

The switch herein disclosed comprises a body B with which is associated the operating assembly of the switch, the latter including a C-shaped carrier strap l I, opposed portions Ha and I lb of which embrace opposed surfaces of the body and are joined by a screw ID to associate the operating assembly with the body.

Supported by the body is a stationary contact l6 which forms a rigid and immovable abutment for the movable contact of the switch.

The operating mechanism includes an operator in the form of a manually controllable lever handle 2'! passing through a slot at 2B in the portion Ha of the C strap H so as to be pivotally connected to the strap. In the portion llb of the C strap is a slot 29 receiving and thus pivotally mounting the end 3| of a flat spring 32 of a suitably resilient sheet metal, the latter having its central portion 33 bowed and its upper end 3t received between oppositely directed portions 35-36 at the lower end of the handle 21 whereby a pivotal connection is provided between the handle and the bow spring.

Secured to the central portion 33 of the bowed spring by means of a rivet 38 are rigid insulation plates 39 and mounted by the rivet 38 is a contact 4|, there being a coil spring 43 on the rivet which provides a resilient and floating mounting for the contact on such rivet.

The

contact is formed with a contact-making portion '56 adapted to engage the contact I6 in a butt or pressure contact manner.

The operation of the switch is explained in detail in the aforementioned application and need not here be reviewed. Since this application relates to structural details, these will now be describ ed.

The handle is assembled with respect to the carrier by passing the operating end of the handle down through the slot 28 of the carrier until the necked down portion of the handle clears the slot, after which the handle is rotated degrees so that the knob 5| of the handle engages the carrier and prevents separation of the handle and carrier.

In order to prevent the lengthwise lengthwise shifting of the handle.

The cup 58,

being of soft rubber, not only forms a means for preventing handle shifting, but in addition provides a resilient and insulating knob for the handle.

Now having described the details of the construction herein illustrated, reference will be had to the claim which follows for a determination of the protection sought herein.

We claim:

In a switch, a plate like portion having a slot therein, and a handle disposed within and passed through the slot, and a thick soft rubber detachable thimble on the exposed end of the handle for insulating it and for engaging the plate for preventing longitudinal shifting of the handle in the plate slot.

WILLIAM H. FRANK. JOSEPH A. MESSING.

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