DE1952319A1 - Sliding resistance - Google Patents

Description

, Sohl0 ba yi ders tand

The invention relates to a variable resistor with a rectilinear resistance track and contact track.

In entertainment electronics, sliding resistors have increasingly been used as regulating organs for volume, height and depth setting, balance, brightness and contrast in televisions a linear scale _o Simultaneously overloaded them at the Naohteil that is required to move the actuating member "^ in the front panel of the device" in the gap, whereby an imperfect Staubdiohtheit and the danger are given a lack of Berührungssohutees live parts inside the device ₀

The object of the invention is to provide a variable resistor with a rectilinear resistance track and Kontaktbmhn eu sohaffen that at one simple and cost-effective, mechanical structure an extensive Dust protection as well as an absolute touch aaoh hat «live file guaranteed from the operator's side

Oenäß the invention Dafi & · * * ur Faatltgung the Vider it and · track and dtr Koatalctbfthn uad ras guide vo2g6e0hlagen, dts Binfttlleohiebere serving · Grundlcörper has a T_förnigen cross-section whose longer legs de in the longitudinal direction "base body with einerPÜhrungsausnehmunf provided i§% and that the table slide consists of two, preferably equal parts, which rough the cured thighs of the body and are held in place by the men who grasp the mouth.

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109818/0887

BATH

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With a Sehialaeviderstaaa designed according to the invention, a Maximum protection against contact with live parts in the interior of the "6" reached in a simple way »

A first embodiment of the invention provides for the longer leg of the base body to be provided parallel to the guide recess for fixing the contact track with groove-like depressions adapted to the cross-section of the contact track, which are designed in such a way that they encompass the largest cross-sectional width of the contact track with resilient protrusions ₀

In a further embodiment, the T-.förraigo basic body consists of two similar "essentially L-shaped" parts, the ones with hasty arms are able to be joined together »with a shielding sheet between the parts if necessary can be used.

Refinements of the invention also consist in that the base body has projections at its ends perpendicular to its longitudinal extent, which exceed the largest width of the setting slide »that these projections pegs and these corresponding recesses for joining have several changeable ¥ iderstands and that the base body bast arms for holding »for example on a printed Formwork panel, integrally formed o

Furthermore, an embodiment of the invention is characterized by a cross-section U-shaped shielding housing that can be plugged onto the base body marked »

Finally, the invention is designed in such a way that one or several variable resistors with the end regions of the base body Recesses of a holding frame adapted to the cross-section of the base body can be used next to each other and molded onto the holding frame Bastarn be fixed and that between the recesses for laying Groove of the changeable resistances for inserting Absohirsiblechen are arranged o

108S18 / 0887

«Η 3»

The invention and further details of the same are based on the in enlarged scale gshalt & en drawings for different embodiments explained in more detail! -.

Figo 1a -3 shows a side of the tandem sliding resistor,

FIG. 2 is a plan view, ■

FIG. 5 shows a section along the line AA in FIG. 1, FIG. 3a shows a detailed section from FIG. 5 »'the. FIg. 4 shows a section along the line BB in. Fj ^ ₀ 5i Flg. 5 shows a plan view according to a design, FIG. 6 shows an end view according to an embodiment, FIG. 7 shows a sole resistance inserted into a holding frame

in perspective «, ·

The tandem cutting resistor shown in FIGS. 1 * 2, 3, 3a and 4 consists of the base body (1), which is essentially I-shaped in cross-section, and the adjustable blade (2) ^{made of identical parts (2 f, 2 ").} The body (1) is Torzugaweis «from two essentially equal L-> fÖraigon parts {i ^f , 1 ^ft ), which are held together by the arms (10)» whereby «wipe the contact surfaces of the hall (1% 1") a Abechirmblech (j) arranged Ibt. On the side surfaces of the longer leg of the QrundkÖrpers (1), the resistance tracks (4) and the contact tracks (5) are attached. For an Elnfaoh strike resistor of the same structure, "only one resistor track (4) and one sontfcktbahn (5) must be arranged on a side surface."

The contact track (5) has a round cross-section and is also a curved wire section, one end serving as a connecting lug (6) on the same side. The establishment of the contact ban (5) takes place on the resistance track (4) parallel section as well as on the section (5 ¹ ) through the cross-section of the contact track adapted, groove-like depressions (7) in the Isesteheuäi «Oründkö ¹ * - per (1), whereby the Tertlsfüsgeß (7) formed. «^ That si · dl« largest Qtiersoiinlttsbrsite the Eoataktbalm (5) basing the Tora progeny (t *) (FIg ₁ Yes) «33er cross-section deaf Konta & tfcfchft (5) let thereby not

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&% ϊ £ restricts the shape of the circle, it can also be an E & llicircle, triangle or. Have Hhombus-Foria! ·.

The adjustment slide (2) consisting of two equal parts (2 ¹ , 2 · '). is designed in such a way that it engages around the shorter legs (-11) of the base body (1), whereby the contact surfaces, sswisohen the parts (2 ¹ , 2 ' ¹ ) and then legs (11) are designed as sliding surfaces cäaKii see connection of the parts (2 ', 2 * ·) takes place through these molded locking arms (21), which reach through the recess (β) arranged in the longer leg of the base body (i) and with the lugs (21 ¹ ) the other part (2 ·, 2 ") hintorfaseeuo Inside the Sinteilscaiebers (2) are fixed with the pin (22) slide springs (23), which abutsen with their ends on the resistance track (4) and the contact track (5) ₀ A continuation 2 formed on the adjustment cap (2) is used to accommodate a control button

5 and 6 show a sliding resistor, which has projections (30) perpendicular to its longitudinal extent at its ends, which exceed the greatest width of the adjusting slide (2) Furthermore, the pins (3I) provided in the projections (30) serve to fix a sealing housing (32) with a TJ-shaped cross-section. To hold the sliding resistor _s, for example on a printed circuit board, the ltastarma (33) »which engage in corresponding oil recesses and engage ^{behind the formwork sheet with the projections (33 1} )» are used.

In FIG. 7 there is a holding frame (40) for fixing several sliding resistors Shown are two opposite 'sides' of the frame. (40) are with the cross section of the base body (1) of the sliding resistor . Adapted recesses (4I) are provided, which are designed so that they are the shorter legs (11) of the T »-shaped base body (1) at the ends with the recesses (42) - include »where the locking noses (44) arranged on the springy Araau (43) the ■ slide · ■ Specify bewiders'taud «In the middle between two recesses. (-'41.4-2 ') sf-wd grooves (45) 'arranged, oils to hold abrasive cables (46) serve, 109818/0887

Claims (1)

1) Changeable resistance with a straight resistance track and Contact track, characterized in that it is used to fix the resistance track (4) and the contact track (S) and to guide the Ε £ η-stellsohlabers (2) a base body (1) with a T-shaped cross-section has, the longer leg in the longitudinal direction of the base body is provided with the guide recess (θ) and that the adjusting slide (2) from two »preferably equal parts (2 ·, 2 '') consists, which include the shorter legs (11) of the base body (1) and of the arms passing through the guide recess (β) (21) are held together, 2) Variable resistance naoh claim 1 »characterized in that the longer leg of the base body (-1) is provided parallel to the guide recess (8) for fixing the contact track (5) with groove-like depressions (7) adapted to the cross-section of the contact track , which are designed in such a way that they encompass the largest transverse width of the contact path (5) with the resilient projections (7 ¹ ). 5) Variable resistance naoh claims 1 and 2 »characterized in that de * .; S-shaped basic body (1) Jaus awel same, iaa essential L-fo ^ raiiien parts (1% 1 ^M ) Tsea-Ieht, which can be joined together with hast arms (to) alad. j ■ ■ i ■ Ί 4) Variable resistor according to claim 'ß $ thereby gekannaelkom that between the two L-shaped parts (1%> 1 ^M ) of the base body (1) a shielding plate (?) Is arranged. 10981070807 -r- 5) changeable Widsx-stand according to claim 1 and 3 * thereby geksnnseiebnet, that the base body (1) is perpendicular to its longitudinal direction its ends projection © (JO) has the greatest width of the Sinstellschiebers (2) surpass, 6) variable resistance according to claim 5? characterized" that the projections (30) have pegs (31) and recesses corresponding to these for joining a plurality of variable resistance. 7) variable resistance naoh claim 1 and following, characterized by the base body molded bast arms (33) sur bracket, for example on a printed circuit board _o θ) Variable resistance according to claim 1 and following, characterized by a cut-off housing (32) which is U-shaped in cross section and can be plugged onto the base body (1). 9) holding frame for receiving at least one variable resistor according to claim 1 and following, characterized in that this with the findberaichen of its base body (1) in the cross-section of the base body adapted recesses (41 »42) of the holding frame (40) can be used and through the holding frame molded fiastariae (43,44) can be fixed. . 10) Haltahraen naoh claim 9 "characterized ^ that between the recesses (41" 4 ² ) for fixing the variable resistances grooves (45) 3 are arranged to insert shielding plates (46) " 'Empty e. ite