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Publication numberUS3617077 A
Publication typeGrant
Publication dateNov 2, 1971
Filing dateOct 3, 1969
Priority dateOct 3, 1969
Publication numberUS 3617077 A, US 3617077A, US-A-3617077, US3617077 A, US3617077A
InventorsCavanaugh Gerald J Sr
Original AssigneeGen Electric
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Knob means for electronic device slideable control
US 3617077 A
Abstract  available in
Images(1)
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

nited States to 1 ammw [72] Inventor GeraldJ.Cavanaugh,Sr.

Chesapeake, Va. 863,546

Oct. 3, 1969 Nov. 2, 1971 General Electric Company [21] Appl. No. [22] Filed [45] Patented [73] Assignee 54] KNOB MEANS FOR ELECTRONIC DEVICE SLIDEABLE CONTROL 2 Claims, 4 Drawing Figs.

[52] US. Cl... 287/53 H [51] Int. Cl Fl6d1/06 [50] Field of Search 287/53 H,

138, 119,DIG. 13; 200/172; 174/46; 16/1 14 A, 116, 110; 285/DIG.21

[5 6] References Cited UNITED STATES PATENTS 6/ 1966 Fillweber 3,367,206 2/1968 Moody 200/172 X 3,409,858 11/1968 Krehbiel... 287/119 X 3,511,956 5/1970 Fields 200/172 Primary ExaminerDavid J. Williamowsky Assistant Examiner-Wayne L. Shedd I Attorneys-James E. Espe and Francis H. Boos,

Frank L. Neuhauser, Oscar B. Waddell and Joseph B. Forman ABSTRACT: An improvement in an electronic device of the type including a cabinet housing a slideably adjustable control means and having an opening for passing means for operating the control means. The improvement comprises providing knob means having a portion which can be passed through a narrow, elongate opening in the cabinet and snap connected to complementary means provided on the control means such that no additional fastener means other than the complementary means are required to maintain connection of the knob means to the control means.

KNOB MEANS FOR ELECTRONIC DEVICE SLIDEABLE CONTROL 1 BACKGROUND OF THE INVENTION This invention relates to an improvement in an electronic device of the type including a cabinet housing a slideably adjustable control means and having an opening for passing means for operating the control means, and, more particularly, this invention relates to the provision of improved knob means having a portion that can be passed through a narrow, elongate opening in the cabinet and snap connected to complementary means provided on the control means such that no additional fastener means are required to maintain connection of the knob means to the control means.

lieretofore, it has been known to employ slideable control means in electronic devices. For example, slideably adjustable resistor means have previously been used in electronic devices, such asradio receivers, to control the receiver audio volume level. In such' prior art devices, the slideably adjustable resistor was mounted within the cabinet and included an operating lever having a distal end which was adapted to be passed outwardly from the cabinet through an opening pro- SUMMARY OF THE PRESENT INVENTION ln accordance with the present invention there is provided an improvement in an electronic device of the type which includes a cabinet housing a slideably adjustable control means and having an opening for passing means for operating the control means. Basically, the present invention comprises providing novelknob means having a portion which can be passed through a narrow, elongate opening in the cabinet and snap connected to complementary means provided on the control means such that no additional fastener means other than the complementary means are required to maintain connection of the knob means to the control means. Preferably, the knob means and the complementary means comprise tongue means integrally formed with a portion of the control means and groove means integrally formed with that portion of the knob means which can be passed through the narrow, elongate cabinet opening.

BRIEF DESCRIPTION OF THE DRAWINGS The present invention is illustrated in the accompanying drawings, wherein:

FIG. 1 is a front elevational view of an electronic device, a television receiver, incorporating a presently preferred form of the present invention;

FIG. 2 is a greatly enlarged fragmentary sectional view taken along line 2-2 of FIG. 1;

FIG. 3 is a fragmentary sectional view taken along line 33 of FIG. 2; and

F l6. 4 is a still further enlarged exploded view of the structure shown in FIGS. 2 and 3, with the generally conventional housing of the slideable control means being shown in shadow.

DESCRIPTION OF THE PREFERRED EMBODIMENT Referring now to the drawings, and particularly to FIG. 1 thereof, there is illustrated an electronic device, a television receiver 10, of the typein which the present invention can be incorporated. The electronic device has a generally rectangular,boxlike outer cabinet 11 and is provided with "on-off" switch means I2 by which the viewer can activate and deactivate the receiver 10; channel selector means 13 by which the viewer can select the particular station or channel he wishes to view; and audio volume control means 14 by which the viewer can adjust the audio volume level of the receiver 10.

As shown in FIG. 1, the on-off" switch means 12, channel selector means 13 and audio volume control means 14 are operated by the viewer from the front wall of the receiver cabinet 11. The on-off" switch means 12 comprises an electric toggle switch 15 of the so-called butterfly" variety that is piyotally mounted by means (not shown) to at least partly extend through an opening 16 provided near the upper edge of a generally rectangular face plate 17, which is attached in a well-known manner by fastener means, such as spring clips 18 (FIG. 3) to cover a large rectangular opening 19 that is provided in the right portion of the front wall of the receiver cabinet 11. g

The channel selector means 13 includes a rotary channel selector knob 20 that is connected by well-known means (not shown) to channel tuner means (not shown) which are housed within the cabinet 11. The face of the rotary channel selector knob 20 is provided with a circumferentially spaced series of indicia, which correspond to the available channels or stations, and the desired one of these channel indicia can be rotated by the viewer into alignment with pointer means 21 marked upon the face plate 17 adjacent the outer circumference of the selector knob 20.

As illustrated in FIGS. 1-4, the audio volume level control means 14, with which the present invention is particularly concerned, includes a novel audio volume control knob 22 that has a slim portion 23 which can be passed through a narrow, elongate opening 24 that is provided in the lower portion of the face plate 17 in the front wall of the receiver cabinet 11 and connected by novel means, which will be described in detail hereinafter, to slideable control means, such as a slideably adjustable electrical resistor pot 25, housed within the cabinet I 1 and electrically connected by conductors 26 to the audio amplifier portion (not shown) of the receiver 10.

With the exception of the novel means which the present invention provides for connecting the novel audio volume level control knob 22 to it, the slideable resistor pot 25 is generally conventional and includes a rectangular boxlike plastic housing 27 that is attached by suitable fastener means, such as metal clips 28, to a mounting bracket 29 which is affixed by a screw 30 to a mounting boss 31 that extends rearwardly from the front wall of the cabinet 11. As best shown in FIG. 2, the housing 27 of the resistor pot 25 is fixed generally horizontally on the front wall of the generally vertically arranged mounting bracket 29, which is spaced behind the cabinet front wall and the face plate 17. The housing 27 for the slideable control means 25 contains a pair of vertically spaced, generally horizontally arranged parallel electrical contact plates 32 and 33 which areprovided with electrical terminals 34, 35 and 36 that extend rearwardly through openings provided in the mounting bracket 29 for connection with the conductors 26. Also contained within the resistor pot housing 27 is an electrical bridging contact member, such as a metallic coil spring 37, which is captured between the contact plates 32 and 33 for slideable movement therebetween by a novel operating member 38 that is constructed and connected to the novel knob 22 in accordance with the present invention in such a manner that movement of the knob 22 in a first direction (to the right as seen in FIG. 1) causes an increase in the audio volume level, while, on the other hand, movement of the knob 22 in a second direction opposite the first (to the left as seen in FIG. 1) causes a decrease in the audio volume level. Suitable indicia, such as the L, M and H shown in FIG. 1, may be marked on the face plate over the narrow, elongate opening 24 for the knob 22 to respectively indicate low, medium and high levels of audio volume and the knob 22 can be aligned by the viewer with the desired audio level indicia.

While it has been known previously to employ slideable control means, generally similar to the slideable resistor pot 25, it previously has been customary to mount the slideable bridging contact member, such as the spring 37, on a slideable lever (not shown) which had a distal end that was adapted to be passed outwardly from the cabinet through an opening in the cabinet which was, of course, necessarily much larger than the narrow, elongate opening 24 which can be employed in accordance with the present invention. With these prior art arrangements, it was common practice to provide knob means which were attached externally of the cabinet to the distal end of the old operating lever by additional fastener means such as setscrews, spring clips, glue and the like. Often with these prior art systems, it was necessary that the knob means be carefully aligned with complementary means provided on the distal end of the old operating lever in order to achieve satisfactory connection therewith. Such prior art knob means were costly both to manufacture and assemble.

As illustrated in FIGS. 1-4, the present invention comprises providing the improved novel knob means 22 having the slim portion 23 which can be passed through the narrow, elongate opening 24 in the cabinet 11 and snap connected to complementary means provided on the slideably adjustable control means 25 such that no additional fastener means other than the complementary means are required to maintain connection of the knob means 22 to the control means 25. In the form of the present invention illustrated, the knob means 22 and the complementary means are formed of plastic, with the complementary means comprising tongue and groove means 39 and 40. As best shown in FIG. 4, the tongue means 39 is formed integrally on a generally channellike receptacle portion 41 that is formed on the front end 38f of the novel operating member 38 which is substituted by the present invention for the old operating lever as the means for slideably adjusting the lateral position of the bridging contact spring member 37 relative to the stationary contact plates 32 and 33. And, the groove means 40 is formed integrally on the slim rear portion 23 of the knob 22 that is passed through the narrow, elongate cabinet opening 24 provided in the lower portion of the face plate 17. As illustrated, the groove means 40 comprises an opening which extends completely through the bight area of the channellike receptacle portion 41. Of course, the rear end 38r of the novel operating member 38 has a generally conventional configuration, being formed with means, such as the illustrated shoulders 42 and 43, for retaining the coil spring bridging contact member 37 thereon and for preventing withdrawal of the operating member 38 from the control means housing 27 without disassembly of the housing 27.

While various types of plastics and forming processes may be employed to form the aforedescribed novel knob means 22 and operating member 38, good results have been inexpensively obtained by molding the novel operating member 38 and its integrally formed tongue means 39 from ZYTEL 101 plastic and by molding the novel knob means 22 and its integrally formed groove means 40 from CYCOLAC EP3510 plastic.

As best indicated in FIGS. 3 and 4, the novel knob 22 of the present invention can be easily connected to the slideable control means 25 simply by inserting the slim rear end portion 23 of the knob 22 rearwardly through the narrow, elongate opening 24 in the front of the cabinet 11 and into the channellike receptacle portion 41 on the front end 38f of the novel operating member 38 until snap connection occurs between the complementary tongue and groove means 39 and 40. With the aforedescribed novel arrangement of the present invention it has been found that the knob means 22 and the slideably adjustable control means 25 can be satisfactorily retained connected to one another without the need for any additional fastener means other than the complementary tongue-andgroove means 39 and 40 and that the aforedescribed novel means provided by the present invention substantially reduce the costs of manufacture and assembly over the aforenoted prior art arrangements.

While in the herein illustrated form of the present invention the slideably adjustable control means 25 and the improved operating member 38 and knob means 22 provided therefor have been shown as being generally horizontally arranged, it

should be understood that they may alternatively be vertically arranged or arranged positioned at angles to either the horizontal or vertical planes.

It should be apparent to those skilled in the art that while there has been described what is considered to be the preferred embodiment of this invention in accordance with the patent statutes, changes may be made in the disclosed apparatus without actually departing from the true spirit and scope of this invention.

What is claimed is:

1. Control means, comprising:

knob means having a generally planar portion, said portion having a depression formed therein, said depression extending transversely to the longitudinal axis of said knob means, said knob means further having detent deflecting means formed therein;

operating member means having a first end adapted to slidably engage an adjustable means, and having a second end adapted to engage said generally planar portion of said knob means;

said second end of said operating member means comprising first and second lateral wall means, floor means connected to the bottom edges of said wall means near the distal ends of said wall means and said first end of said operating member, said floor means having a ramplike abutment disposed transversely thereacross and in a direction substantially perpendicular to said wall means for engaging said depression in said knob means whereby said floor means is resiliently deflected in the area intermediate the points of connection to said bottom edges of said wall means and to first end of said operating member upon engaging said deflecting means.

2. The invention as defined in claim 1, further including at least one abutment extending inwardly of said operating member from the upper edge of said wall means for retaining said knob means after engagement thereof.

it a w t u

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US3256031 *Jul 31, 1963Jun 14, 1966Dominion Electric CorpCoupling structure
US3367206 *Jun 10, 1965Feb 6, 1968Westinghouse Electric CorpPushbutton actuator
US3409858 *Aug 29, 1966Nov 5, 1968Molex Products CoElectrical connector having resilient arcuately bendable locking means
US3511956 *Mar 14, 1968May 12, 1970Dynamics Corp AmericaElectrical switch housing
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4518138 *Nov 22, 1982May 21, 1985Ford Motor CompanyFastening device
US5706672 *Feb 15, 1996Jan 13, 1998Fujitsu General LimitedAir conditioner
US6171010 *Dec 29, 1997Jan 9, 2001Nok CorporationBoot with spaced coupling portions
US7753423 *Jan 8, 2008Jul 13, 2010Toyota Motor Engineering & Manufacturing North America, Inc.Component assembly for a motor vehicle
US7992841 *Dec 24, 2008Aug 9, 2011Alpa Lumber Inc.Slide connector and railing system incorporting same
US8511648Oct 20, 2009Aug 20, 2013Vision Extrusions LimitedFence system
US20120247266 *Dec 6, 2010Oct 4, 2012Pioneer CorporationSlide handler
DE4209829A1 *Mar 26, 1992Sep 30, 1993Max HobePräzisions-Kupplung zum Einsatz in einem Tastkopf einer Meßeinrichtung
DE102005014016A1 *Mar 26, 2005Oct 5, 2006Audi AgBetätigungselement mit einem Trägerteil und einem endseitigen Designteil, insbesondere für ein Fahrzeug
Classifications
U.S. Classification403/291, 403/319, 200/295, 403/329
International ClassificationG05G1/02, G05G1/00
Cooperative ClassificationG05G1/025
European ClassificationG05G1/02S
Legal Events
DateCodeEventDescription
Jan 27, 1988ASAssignment
Owner name: RCA LICENSING CORPORATION, TWO INDEPENDECE WAY, PR
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:GENERAL ELECTRIC COMPANY, A NY CORP.;REEL/FRAME:004854/0730
Effective date: 19880126
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:GENERAL ELECTRIC COMPANY, A NY CORP.;REEL/FRAME:4854/730
Owner name: RCA LICENSING CORPORATION, A DE CORP.,NEW JERSEY
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:GENERAL ELECTRIC COMPANY, A NY CORP.;REEL/FRAME:004854/0730