US1789708A - Electric switch - Google Patents

Electric switch Download PDF

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Publication number
US1789708A
US1789708A US210906A US21090627A US1789708A US 1789708 A US1789708 A US 1789708A US 210906 A US210906 A US 210906A US 21090627 A US21090627 A US 21090627A US 1789708 A US1789708 A US 1789708A
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Prior art keywords
plate
switch
handle
case
contact
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US210906A
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Harry E Norviel
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Delco Remy Corp
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Delco Remy Corp
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/005—Electro-mechanical devices, e.g. switched

Definitions

  • This invention relates to electrical switches particularly for controlling electrical circuits of an automobile.
  • One object of the present invention is to simplify the construction of and reduce the cost of manufacture of switches of this type.
  • Fig. 1 is a front elevation of a switch embodying the present invention.
  • Fig. 2 is a back view thereof.
  • FIG. 3 is a sectional view on the line 3-3 of Fig. 4 is a sectional view on the line 44 of Fig. 3.
  • Fig. 5 is a sectional view on the line 5-5 of Fig. 3.
  • Fig. 6 is a sectional view on the line 66 of Fig. 5.
  • 20 designates a pressed sheet metal switch mounting bracket having hooked ears 21 for engaging angle bars 22 which are supported adjacent the back of an instrument board 23 and spaced so slightly therefrom to support other instruments which are mounted upon the instru ment board.
  • the bracket 20 has pressed therein a tubular part 24 providing the cfvlindrical side wall of a switch case.
  • the ront wall of the switch case is provided by a dial plate 25 which is secured to the bracket 20 by a bezel ring 26 having a fiat flange 27 engaging the front face of the bracket 20.
  • the flange 27 is secured to the bracket 20 by providing the former with ears 28 which are elliptical opening in the instrument board 23.
  • the back of the switch case is provided by nonconducting block or switch back 31 carrying tapped tubular rivets 32, each providing one of the switch terminals for receivin a screw which attaches a wire thereto.
  • rivet 32 is provided with a conical recess 33 providing a stationary switch contact which is engaged by one or more movable contacts provided by the spherical bosses 34 on the switch contact fingers 35 integral with a rotary contact plate 36.
  • the contact plate 36 is driven by a contact carrier which comprises nonconducting plates 37 and 38 which are rigidly secured to the shank 39 of a stud 40, the shank being riveted against a washer 41 which bears against the plate 38.
  • Loose rivets 42 pass through holes in the block 37 and the plate 36 and each rivet has a head 43 received by a hole 44 in the plate 38, and a head 45 received by a recess 46 in the plate 36.
  • the plates 38 and 37 are supported for rotation by providing the block 31 with a hole 47 which receives with a running fit the stud 40 so that the block 31 provides a bearing for the stud.
  • the plates 37 and 38 are also supported by an operating handle 50 having its hub 51 rotatably supported by an aperture 52 in the plate 25 concentric with the tubular case portion 24.
  • the hub 51 of handle 50 is provided with tangs 53 (see Fig. 4) which are received by rectangular openings 54 in the plate 38. In this way the plate 38 is supported by the hub 51 as well as by the switch back 31 and is driven by the handle 50.
  • the hub 51 of the handle is provided with flanges 55, 56 and 57 which engage the inner surface of the dial plate 25 and prevent removal of the handle from the switch.
  • the spherical contacts 34 are each yieldingly urged toward the switch back 31 by a coil spring 60 having one end. seated in the semispherical depression 61 provided by each contact 34 and its other end seated in a cup-shaped member 62 received by a suitable hole in the plate 37 and extending partly into a hole 63 in the plate 38 which provides clear ance for a part of the spring seat member 62.
  • the handle 50 is resiliently maintained in its different operating positions on, dim, ofi, park, by the cooperation of the spherical contacts 34 with one or more of the conical recesses 33 in the tubular rivets 32.
  • the switch is constructed by makin a sub-assembly of the bracket 20, the dial p ate 25 and the bezel ring 26, a sub-assembly of the movable switch parts shown in Fig. 6,.namely the plates 37 and 38, the contact plate 36 and the stud 40, and another sub-assembly including a switch back 31 and terminal members secured thereto.
  • These sub-assemblies are assembled after the switch handle 50 has been inserted through the opening 52 from the rear of the dial plate 25 so that the handle occupies the position relative to the dial plate shown in Fig. 3.
  • the switch contact assembly shown in Fig. 6 is moved into the switch case and inserted over the tangs 53 of the switch handle.
  • the switch back assembly is attached to the switch case 24 by the tangs which extend rearwardly from the switch case member 24 and enter notches 71 in the edge of the switch back 31, the tangs being bent over at 72 against the back member 31 when assembled, thus putting the four coil springs 60 under slight compression.
  • An electric switch comprising, in combination, an open back stationary casing and a front dial plate having an aperture therein fixed together to form a sub-assembly; a switch handle having a hub portion rotatably supported within said aperture and a flan e engaging said dial plate, the handle driving y engaging a second sub-assembly comprising an insulation plate and a switch contact plate mounted thereupon, said insulation plate and contact late being urged axially apart by a series 0 coil springs spaced therebetween; a third sub-assembly comprising an insulated switch back having a series of stationary contacts engageable by said contact plate, said springs also urging the handle flange against the dial plate, and the contact plate against the switch back.
  • An electric switch comprising, in combination, an open back stationary casing and a front dial plate having an aperture therein fixed together to form a sub-assembly; a switch handle having a hub portion rotatably supported within said aperture and a flange preventing withdrawal of the handle through said aperture; a second sub-assembly comprising a pair of insulation plates and a switch contact plate mounted thereupon, a rivet securing said insulation lates together and providing a pivot post or said second sub-assembl said insulation plates and contact plate eing urged axially apart, and said flange being urged against the dial plate by a series of 0011 springs; a third sub-assembly comprising an insulated switch back having a series of stationary contacts in the form of tapped tubular rivets engageable by said contact plate, said second sub-assembly being supported in position by attachment to said hub portion and by said pivot post bearing in said switch back.
  • the combination comprising, a mounting bracket plate, a switch case having a cylindrical wall integral with said plate, a dial plate attached to said mountin plate, a handle having a bearing in the dlal 'plate, and a flange engaging the dial plate to prevent withdrawal, and switch contacts in the case controlled by said handle.
  • an electric switch comprising, a mounting bracket plate, a switch case having a cylindrical wall integral with said plate, a dial plate attached to said mounting plate, a handle having a bearing in the dial plate, and a flange engaging the dial 'plate to prevent withdrawal, a movable switch contact in the case, and a spring for urging the movable contact against stationary contacts and the handle flange against the dial late.
  • an electric switch comprising, a mounting bracket plate, a switch case having a cylindrical wall integral with said plate, a dial plate attached to said mountin plate, a handle having a bearing in the dial plate and a flange engaging the dial plate to prevent withdrawal, a switch back closing said case and a contact carrier within the case to be driven by said handle.
  • an electric switch comprising, a mounting bracket plate, a switch case having a cylindrical wall integral with said plate, a dial plate attached to said mounting plate, a handle having a bearing in the dial plate, and a flange engaging the dial plate to prevent withdrawal, a switch back closing said case, and a contact carrier within the case to be driven by said handle, said contact carrier comprising a pair of discs .secured together by a rivet, said rivet providing a pivot post and journalled in the switch back.
  • a mounting bracket plate a. switch case having a cylindrical wall integral with said plate, a dial plate attached to said mounting plate, a handle having a bearing in the dial plate, and a flange engaging the dial plate to prevent withdrawal, a switch back closing said case, and a contact carrier within the case to be driven by said handle,
  • an electric switch comprising, a mounting bracket plate, a switch case having a cylindrical wall integral with said plate, a dial plate attached to said mountin plate, a handle having a bearing in the ial plate, and a flange engaging the dial plate to prevent withdrawal, 2. switch back closing said case, a contact carrier within the case to be driven by said handle, said contact carrier comprising a pair of discs secured together by a rivet, said rivet Froviding a pivot post and journalled in t 1e switch back, and a spring for urging said contact carrier against the switch back and the handle flange against the dial plate.
  • an electric switch comprising, a case having a front wall, a bearing in the wall for a switch handle, said handle having a flange engaging inside of front wall, circuit closin means within the case connected with the andle, and means urging the handle flange against the front wall only.

Description

Jan. 20, 1931. H. E. NORVIEL 1,789,708
ELECTRIC swmca Filed Aug. 5, 192'!- Patented Jan. 20, 1931 UNITED STATES PATENT OFFICE HARRY E. NORVIEL, OF ANDERSON, INDIANA, ASSIGNOR TO DELCO-REMY CORPORA- TION, OF DAYTON, OHIO, A CORPORATION OF DELAWARE ELECTRIC SWITCH Application filed August 5, 1927. Serial No. 210,906.
This invention relates to electrical switches particularly for controlling electrical circuits of an automobile.
One object of the present invention is to simplify the construction of and reduce the cost of manufacture of switches of this type.
Further objects and advantages of the present invention will be apparent from the following description, reference being had to the accompanying drawings, wherein a preferred form of embodiment of the present invention is clearly shown.
In the drawings:
Fig. 1 is a front elevation of a switch embodying the present invention.
Fig. 2 is a back view thereof.
F Fig. 3 is a sectional view on the line 3-3 of Fig. 4 is a sectional view on the line 44 of Fig. 3.
Fig. 5 is a sectional view on the line 5-5 of Fig. 3.
Fig. 6 is a sectional view on the line 66 of Fig. 5.
Referring to the drawings, 20 designates a pressed sheet metal switch mounting bracket having hooked ears 21 for engaging angle bars 22 which are supported adjacent the back of an instrument board 23 and spaced so slightly therefrom to support other instruments which are mounted upon the instru ment board. The bracket 20 has pressed therein a tubular part 24 providing the cfvlindrical side wall of a switch case. The ront wall of the switch case is provided by a dial plate 25 which is secured to the bracket 20 by a bezel ring 26 having a fiat flange 27 engaging the front face of the bracket 20. The flange 27 is secured to the bracket 20 by providing the former with ears 28 which are elliptical opening in the instrument board 23.
The back of the switch case is provided by nonconducting block or switch back 31 carrying tapped tubular rivets 32, each providing one of the switch terminals for receivin a screw which attaches a wire thereto. Eac
rivet 32 is provided with a conical recess 33 providing a stationary switch contact which is engaged by one or more movable contacts provided by the spherical bosses 34 on the switch contact fingers 35 integral with a rotary contact plate 36. The contact plate 36 is driven by a contact carrier which comprises nonconducting plates 37 and 38 which are rigidly secured to the shank 39 of a stud 40, the shank being riveted against a washer 41 which bears against the plate 38. Loose rivets 42 pass through holes in the block 37 and the plate 36 and each rivet has a head 43 received by a hole 44 in the plate 38, and a head 45 received by a recess 46 in the plate 36. The plates 38 and 37 are supported for rotation by providing the block 31 with a hole 47 which receives with a running fit the stud 40 so that the block 31 provides a bearing for the stud. The plates 37 and 38 are also supported by an operating handle 50 having its hub 51 rotatably supported by an aperture 52 in the plate 25 concentric with the tubular case portion 24. The hub 51 of handle 50 is provided with tangs 53 (see Fig. 4) which are received by rectangular openings 54 in the plate 38. In this way the plate 38 is supported by the hub 51 as well as by the switch back 31 and is driven by the handle 50. The hub 51 of the handle is provided with flanges 55, 56 and 57 which engage the inner surface of the dial plate 25 and prevent removal of the handle from the switch. The spherical contacts 34 are each yieldingly urged toward the switch back 31 by a coil spring 60 having one end. seated in the semispherical depression 61 provided by each contact 34 and its other end seated in a cup-shaped member 62 received by a suitable hole in the plate 37 and extending partly into a hole 63 in the plate 38 which provides clear ance for a part of the spring seat member 62. The handle 50 is resiliently maintained in its different operating positions on, dim, ofi, park, by the cooperation of the spherical contacts 34 with one or more of the conical recesses 33 in the tubular rivets 32.
The switch is constructed by makin a sub-assembly of the bracket 20, the dial p ate 25 and the bezel ring 26, a sub-assembly of the movable switch parts shown in Fig. 6,.namely the plates 37 and 38, the contact plate 36 and the stud 40, and another sub-assembly including a switch back 31 and terminal members secured thereto. These sub-assemblies are assembled after the switch handle 50 has been inserted through the opening 52 from the rear of the dial plate 25 so that the handle occupies the position relative to the dial plate shown in Fig. 3. When this has been done the switch contact assembly shown in Fig. 6 is moved into the switch case and inserted over the tangs 53 of the switch handle. Then the switch back assembly is attached to the switch case 24 by the tangs which extend rearwardly from the switch case member 24 and enter notches 71 in the edge of the switch back 31, the tangs being bent over at 72 against the back member 31 when assembled, thus putting the four coil springs 60 under slight compression.
While the form of embodiment of the present invention as herein disclosed, constitutes a preferred form, it is to be understood that other forms might be adopted, all coming within the scope of the claims which follow.
What is claimed is as follows:
1. An electric switch comprising, in combination, an open back stationary casing and a front dial plate having an aperture therein fixed together to form a sub-assembly; a switch handle having a hub portion rotatably supported within said aperture and a flan e engaging said dial plate, the handle driving y engaging a second sub-assembly comprising an insulation plate and a switch contact plate mounted thereupon, said insulation plate and contact late being urged axially apart by a series 0 coil springs spaced therebetween; a third sub-assembly comprising an insulated switch back having a series of stationary contacts engageable by said contact plate, said springs also urging the handle flange against the dial plate, and the contact plate against the switch back.
2. An electric switch comprising, in combination, an open back stationary casing and a front dial plate having an aperture therein fixed together to form a sub-assembly; a switch handle having a hub portion rotatably supported within said aperture and a flange preventing withdrawal of the handle through said aperture; a second sub-assembly comprising a pair of insulation plates and a switch contact plate mounted thereupon, a rivet securing said insulation lates together and providing a pivot post or said second sub-assembl said insulation plates and contact plate eing urged axially apart, and said flange being urged against the dial plate by a series of 0011 springs; a third sub-assembly comprising an insulated switch back having a series of stationary contacts in the form of tapped tubular rivets engageable by said contact plate, said second sub-assembly being supported in position by attachment to said hub portion and by said pivot post bearing in said switch back.
3. In an electric switch, the combination comprising, a mounting bracket plate, a switch case having a cylindrical wall integral with said plate, a dial plate attached to said mountin plate, a handle having a bearing in the dlal 'plate, and a flange engaging the dial plate to prevent withdrawal, and switch contacts in the case controlled by said handle.
4. In an electric switch, the combination comprising, a mounting bracket plate, a switch case having a cylindrical wall integral with said plate, a dial plate attached to said mounting plate, a handle having a bearing in the dial plate, and a flange engaging the dial 'plate to prevent withdrawal, a movable switch contact in the case, and a spring for urging the movable contact against stationary contacts and the handle flange against the dial late.
5. 11 an electric switch, the combination comprising, a mounting bracket plate, a switch case having a cylindrical wall integral with said plate, a dial plate attached to said mountin plate, a handle having a bearing in the dial plate and a flange engaging the dial plate to prevent withdrawal, a switch back closing said case and a contact carrier within the case to be driven by said handle.
6. In an electric switch, the combination comprising, a mounting bracket plate, a switch case having a cylindrical wall integral with said plate, a dial plate attached to said mounting plate, a handle having a bearing in the dial plate, and a flange engaging the dial plate to prevent withdrawal, a switch back closing said case, and a contact carrier within the case to be driven by said handle, said contact carrier comprising a pair of discs .secured together by a rivet, said rivet providing a pivot post and journalled in the switch back.
7. In an electric switch, the combination comprising, a mounting bracket plate, a. switch case having a cylindrical wall integral with said plate, a dial plate attached to said mounting plate, a handle having a bearing in the dial plate, and a flange engaging the dial plate to prevent withdrawal, a switch back closing said case, and a contact carrier within the case to be driven by said handle,
and a spring for urging said contact carrier against the switch back and the handle flange against the dial plate.
8. In an electric switch, the combination comprising, a mounting bracket plate, a switch case having a cylindrical wall integral with said plate, a dial plate attached to said mountin plate, a handle having a bearing in the ial plate, and a flange engaging the dial plate to prevent withdrawal, 2. switch back closing said case, a contact carrier within the case to be driven by said handle, said contact carrier comprising a pair of discs secured together by a rivet, said rivet Froviding a pivot post and journalled in t 1e switch back, and a spring for urging said contact carrier against the switch back and the handle flange against the dial plate.
9. In an electric switch, the combination comprising, a case having a front wall, a bearing in the wall for a switch handle, said handle having a flange engaging inside of front wall, circuit closin means within the case connected with the andle, and means urging the handle flange against the front wall only.
In testimony whereof I hereto aflix my signature.
HARRY E. NORVIEL.
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