DE7111778U - POTENTIOMETER WITH A GRINDER ARRANGED ON A THREADED SPINDLE - Google Patents

Description

Stuttgart, October 10th, 1971 <* ^{δ57 Ä / C}

H ο ρ t * Ble © tronic GmbH 721 Bßttveil / Veekar ύ Str. i2

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Pot «ntioa« ter with one on one

Srfin & one looks at a photo indicator, iaa-Iteaondere for ilbatiaaaggregate from VerneehrempfinBern, ■ It is arranged on a threaded spindle. 8 <) hleiftr and a «in the housing of the photo-teationetert rotatably mounted adjusting wheel, daa ait a gear connected iat that meshes with eibea on the attached gear.

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Turn the adjusting wheel to reset the threaded spindle of the potentiometer · and thereby create the grinder in the longitudinal direction of the spindle. ^: . · __ ;; _. ·. '■. . . ·. \ - /: ii-r- _:

The pinion gears d «~? previously known potentiometer «I maoheii it required the CltellrKder with sur Ge

Arrange threaded spindle parallel axis », ie in a plane perpendicular to the threaded spindle. These The arrangement of the adjusting wheels has, in turn, the consequence that in Tielen pills the Durohmeiiser of the adjusting wheel the

baatimmen, because such a bell wheel in the Surohmeeser can not be redesigned at will, including handling do not complicate Bu and ireseotlieh in dim most spouts. larger (^ lerabmeesungen than that on one relative to Juane «grinder arranged on a threaded spindle · Un waitei ^ r some of these well-known potentiometers consists in defl when there are several such potentiometers at aplela in a distance: Lmmaggregat for television receivers arranged in a row parallel to each other • load so that all setting wheels are in a common When adjusting the potentiometer the suggestive band section of the adjusting wheel · always Bots are moved in sight of the neighboring adjusting wheel, so there is a risk of this when activated de * adjusting wheel the finger resting on its circumference

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menaehbarto potentiometer also adjusted · Sb required either your greater provision when adjusting it Swipe the potentiometer or a "very large distance" the potentiometers, as he is familiar with the lack of flats in most villas when a door is not seen Touching and thus adjusting neighboring potentiometers ▼ should be avoided.

The 8th invention is the task of various components of the well-known Fotentioaeter sn wemelden · ZE ^ se Aufge.be is in a surprisingly simple manner close to the invention self. "« Β the one tied to the Stelixad mim trained and the bell wheel is rotatably mounted with the helical gear around an axis running transversely across the door

With the inventive potentiometer, there is the adjusting wheel with the helical wheel in one plane, in 4er see SUOh the threaded spindle of the potentiometer is, see that this bath, the space requirement across sur Bpindel no longer enlarged. As a result, you can the inventive potentiometer without white close to serves sngaordered. Also in terms of the distribution of the potentiometers is not undermiss · moor, the potentiometers are very close to one another to be arranged because the Veretellrlehtang now parallel do the tuning spindles and therefore no longer in

«If neighboring potentiometers are running, then defi dl · at» adjust di « ²

Touch potentiometer xu, not very strong · SIa Another advantage of using τοη screw wheels naoh the charge consists in the fact that a »Xaderaa * The 8teiguag of the grueling gears due to the transmission ratio swisehem 8tellred and threaded spindle The wide limits of being Terilert know what to do with Use of spur gears only in very restricted areas possible who, because the SarehBeeser's in each other Ungrlf f standing identifiers for the given Qs8iea - Only very closely related to a potentiometer Qrensen Terinderbsr are. ·

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also has a not inconsiderable portion of the gate, so that ala bagleloh elaen a very simple structure of aolcaer mater he escapes. In the case of one discovery, the setting wheel is directly ala eohraubearad ssjagiiblldat and on the soon-to-be-known pages old which it engages in the wall of the housing of the potentiometer. So there are no special stolirsd for the ala 8ehraubanrtA trained stolirsd! "Gexmlttotl brnOtlgt, but it is sufficient that: la dan plumb Anaolilaga vorhaadexi that start the distance of the setting wheel v <" the gear wheel on the threaded spindle, wüirend the setting wheel in \ v ? on the contrary, Hchtang uiKittelbar dam cogwheel Jbgeatutst, with dam as in SLagrtfg

S.Liie 'particularly simple assembly of the arrangement is possible, _T , \ vez \ n the housing a frame-shaped upper part, guided between the side walls of the slider. is,. aad wiae aas upper part downward Final assembly, generally which the threaded spindle is mounted with the grinder, uia.fasst _t usd the slots serving for mounting the setting wheel in the upper part of the housing and in the direction towards the lower part is offered sinö. It is then sufficient to insert the adjusting wheel with its journal ic the grooves in the side walls of the upper part before the upper part is connected to the lower part. Additional steps for mounting the gearbox are not necessary with such a design of the potentiometer.

With such a potentiometer, the Ab-chniti; of the top of the housing must be separated from the section resting on the setting wheel by an outer wall. Such Transverse wall ensures that the grinder and adjusting wheel cannot come into contact with each other, so aai: mutual damage is excluded with safety The upper part of the housing experiences a not insignificant stiffening due to such a transverse wall.

Further details and embodiments of the invention can be found in the following description and the drawing ζ α , which shows an embodiment of the invention.

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Those to be found in the description and the drawing Features may be used in other embodiments of the Invention individually or?: U several in any Find the combination Αϊΐ-enduEg. Show ss;

. 1 shows a plan view of a tuning unit for: 7e? N &# hjzeräte with potentiometers according to the invention. ... ■; "■:. J /.-,- y> ^:

Pig »1 a section along line II-II through the JLuötimuaggregat still Figo 1, and

3 shows a section along line III-III the potentiometer backwards. 2.

The Abstiomag-gregat shown in the drawing comprises a storage unit 1 and a connected thereto Switching unit 2. The storage unit 1 contains a number of potentiometers, each, as can be seen from Fig. 2, a threaded spindle 3 with a single: thereon arranged grinder 4- include. The grinder is cit a contact spring 5 on one on an insulating plate 6 attached Tiider stand track and transfers the voltage tapped from the 7 / resistance track the LIetall threaded spindle 3 · In the Switch unit 2 is assigned a pressure switch to each potentiometer, which orso enables the respective To switch the potentiometer into a tuning circuit.

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When the button is pressed, there is also the potentiometer also a band switch switched on «which is formed by a slide switch arranged parallel to the potentiometer. The actuators 8 of the Slide switches penetrate slots 9 in the front panel of the storage unit; that is, 1, which are parallel to slots Iw ▼ run in which the wiper 4 · the potentiometer old approaches 11 are performed. You memory purity 1 is shown broken away in FIG Cover 12 provided. ...: ^ -

As can also be seen from the drawing, the position of the wiper 4- of the potentiometers, which are held on the threaded spindle 3 and rotatable by their extension 11 guided in de-a housing slot 10, can be changed by turning the threaded spindle. To =. Rotating the threaded spindle 3 is an adjusting wheel 21, which is designed as a gear and m. ste'r.t a gear 22 arranged on the threaded spindle 3 in engagement. Both the setting wheel 21 and the gear wheel 22 arranged on the winch spindle 3 are designed as screw wheels and are therefore arranged with axes that intersect at right angles. The adjusting wheel 21 has axle journals 23 on both sides. the in corresponding, in pages ^ · i ^; Ncenes of the housing of the memory unit 1 attached Xuten intervene. The side walls 24 with deia grooves 1 $ are part of a housing upper part that can be placed from above on an assembly that has a metallic

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Base plate 51 includes on de? a printed circuit board bearing the ll'cntalcte of the above-mentioned band switch unit and the insulating board 6 with the resistance bars, which are no longer shown, is attached and the end facing away from the switch unit 2 has an angled web 53 in which the threaded spindle 3 r.dt the gear 22 attached thereon is mounted. For this purpose, a bushing 34 is injected into corresponding bores of the bte ^ es 35 in such a way that it can be rotated in this bore, but can be pushed under in the axial direction, and it is in this, at its free end, the teeth forming the gear 22 Bush the threaded spindle 3 fitted. The remote from the bushing 54 · linden the threaded spindle 3 is in a aohrusg a longitudinal wall 27 of the Gehäuseoberteilr s> the storage unit Λ inserted. This design of the storage unit Λ makes it possible) the ^ part wheel 21 cit sein32 AchFzapfen 23 simply slide into the grooves in the side walls 24 of the upper housing part, which are open in the direction of the assembly containing the threaded spindle 3, before the upper housing part is placed on the aforementioned assembly After the union of the upper housing part and the assembly containing the threaded shaft 3, the adjusting wheel 21 rests with its journal 25 on the ends of the upwardly closed butts 25 and is held in this position by the toothed wheel on the threaded spindle 3, cit dea es daxaa stands in singing riff. The upward from the front panel 28

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the storage unit 1 is a protruding adjusting wheel 21 arranged in a housing section 29 «that of dec Schllts 10 and the housing section located below the slot is separated by an outer wall JC which separates the two side walls 24 of the housing connects and thereby strengthens the housing.

From Fig. 1 it can be seen that in a Abstinaaggregat in which several formed according to the invention Potentioiieter are arranged parallel to each other, too • Lie setting wheels 21 are arranged in mutually parallel planes so that when turning the setting wheels 21 kair-e üevefungen need to be carried out the one on the adjacent adjusting wheels has directed components, so that there is no risk of this when adjusting an adjusting wheel at the same time also neighboring otellräcer touched and unintentionally adjusted rerdes, «even v? enn die Potentiometers arranged relatively close to one another sisd.-lufierdea influences the diameter of the adjusting wheels 21 not the distance between the neighboring Fotentiocet rr. must be observed, so that because of the arrangement of such Stellrider does not lose any unnecessary seams.

Claims (1)

Sch uta claims 1 * Potentiometer, especially for Absitiinaggregate vcn Television receivers, ait one on a threaded spindle arranged "grinder uad ei" es isa housing of the red ent ic = meters rotatably mounted steep wheel, that with one thing: a gear is connected which is in engagement with a gear mounted on the threaded spindle, characterized in that the gear attached to the setting wheel (21) al3 helical gear and the adjusting wheel (21) mil: the helical gear by one to the threaded spindle (3) transversely running axis is rotatably mounted 2 «Potentiometer according to claim 1, characterized;» that the partial gear (21) is directly connected to the helical gear formed and with axle sockets on both sides (23) provided and with these axle journals in corresponding, mounted in the side walls (24) of the housing Kuten (25) engages. Potentiometer according to Claims 1 and 2, characterized in that the housing has a frame-shaped upper part, between the side walls (24) of which the slider ( ^£ 0) is guided, and an assembly which closes the upper part at the bottom and in which the threaded spindle (3) is nit of the grinder (4) is stored, includes and the storage of the Stsll- ft .cades (21) these Nvten (2 $) in the upper part of the » Housing arranged and in the direction of the Cb r part final assembly open at the bottom. «ind. ioteatiometer according to Änspirüche 1 to 3, characterized in that the section of the upper part of the housing serving to guide the grinder (4) is separated from the adjusting wheel (21) on the housing section (29) by a transverse wall (30).