DE7243455U - Push button switch - Google Patents

Description

^r : 7 2 ί 3 £ ^c 5. Π

J .G. rrov.-n-P. J. Stocker 1-1

International Standard Π petric Corporation, "> w York

^ jerk button switch

The invention relates to a push button switch, in particular for key sets in televisions, whose Prijc ¹ - I-noof introduces' · / irr! and it is provided with a shaft, the dip ν ο η ς ta! ■ tebetä ti π t.

P erarti π e arrangements of Γ 'push button switches in tactile w ah 1 s ä t ζ e η are known from [IT-OS 1 562 1Λ 9 h ρ for ν ie 1 sw ° isea ν s. Γ ei this ■ '■ US f ührtino, the pressure k nö'nf e Oer keys opt ^ri PCJ or neführt F'ihrur.nsplatte their

IC shafts act on ¹ K ta ο η 1: η tfeder that it contacts a τ ^<n edruc ^l th circuit nob for Ferührunn v.'erden avenge. For picking up ¹ " öe.r keys in the rest lane, additional flatters are provided which, analogous to the contact springs, are punched out of a plate for all keys from a plate. The Schi c μ turn the return springs between insulation "" is ve r ⁿ enomr ⁿ s, ad -. they at Ta s tenbe ta ti ouno a · edge atisnelenkt \ · ι grounding, resulting in a ⁿ rucknunk t ernibt, c ¹ he unoewollte [ etätiqunnen should sleep out. With this construction, however, a 0 continuous rde ¹ "step-wise lanisare ί-etatinunn of the f'ruc k buttons can be ruled out, but this only applies to key switches with only ^r - i η ° r Y ο η ta V t ° b 9 η e is irrelevant.

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J.G. Prown-P.J. Stocker 1-1

Demapoenüber ti the Erfindunn at the Aufnähe, the embedding flow unn of the stroke and the speed of Schaltbeweounn exclude what must be of push button switches with a plurality of contact planes, so as etching with the contact spring, oefordert if accidental or deliberate mis betatiqunnen animal contacts are to be unmönlich. The solution is characterized in that? the recess in the guide plate for receiving the push button is provided with evenly distributed, rear-cut grooves in which the outer ends of springs are stored, the inner ends of which engage the shaft of the push button, the resilient lengths of which are greater than the The distance between the groove and the shaft and their bearings on the shaft in the Puhestellunn of the key are above, in the actuated position at the level of the mute. With this design, a tendon effect is achieved, 6er lets the push button snap into either the upper or lower end position, [the lower stop is unstable because the contact springs apply the restoring force, so that the push button only remains in this position Stelluno remains until it is released. Finly pressing or releasing the push button has no effect on the contact operation, especially because this is always done smartly by the snap effect.

5 The further embodiment provides that Öer P ο de η (ier A us nehnuinn in the guide plate has flexible tongues, between the free ends of the shaft, which abuts the tongue when the push button is returned, is nested through it . This is for one

J .G.Brown-P.J.S tocί er 1-1

simple montane is advantageous, as dip pri.'ck ^l ncnfο only oinned and pressed down nuts, urd ρ η P 11 η d to snap into place behind the grooves.

To facilitate the P e rc ο η ta π e, is π e η ä P v: Eiterer fusbildunn the shaft with an axially on th ^ provided usnehninn so dap · er when removing ζ usamm ρ η ⁿ edriicl · t wrrden ka η η.

The feathers have an irrationally essential *! - for my inpn ground plan on and are with ever. a free leg in riripr Groove of the recess of the guide bar on the one hand and the On the other hand, the shaft of the push button is nelanert.

It is zv / ecktnäPi σ, two springs overlapping each other to arrange an oute t'roftevertpiluno, especially on To achieve the shaft of the push button.

The E r f i η d u η α w i r d im f ο 1 ο e η d e η at an A υ s f ü h r u η π s be is ρ ie1 explained in more detail, which steams in the fifth leg drawings is. In the drawings show:

Figure 1 shows a push button in not actuated position in Side view and partially sectioned;

Figure 2 shows the view of the push button as in Finur 1, however when the button is pressed;

FIG. 3 "an insulating plate in three views from a keypad in which the pushbuttons according to FIG. 1 and ?. be used;

7243455 6/24/76

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Γ i ι "11 rz ¹ · ?. Υ ssch η i 11 s v. ^{1 p} is ρ cine v. ¹ riter ρ insulating plate;

Figures' 11 η c ¹ c two ^ι c η taktstr ο if ρ η from the key set in Hraufsic ^ t;

Finur 7 is a cross sectional view of the contact strip corresponds ^Γ · s \) compute ρ η ^ L i η i ρ VII - VII in Finur 5 or 6 iQur F;

Fin υr P dip Π rundr latte ο es key set in plan view;

Finur '"· ρ i η er". Stepped up. ^ t PzcV - or guide plate of the key set « ¹ ", in front of you;

Finur IC a ru erς c l · η i 11 according to line X - X in Finur 9 and

Finur 11 a Piip.rschnitt along line XI - XI in Fiqur 9.

The Prurk button 1 in Finur 1 has a square plan with rounded Fckpn and is with a downward protruding shaft ?. Mistake. The latter has protruding ends on the outside and 3 and is hollow on the inside as a result of a central recess 4. The push-button is guided in a square, recess-shaped slat 5. The recess nn is provided with rear-facing f '^ th 6, below the flexible tunnels 7 protrude inward. Two N-formine springs P grip j ρ v; ei 1 s ii'it one end in a K ut of the shaft?. a.

rhyming onset is ■ provided the Hruckknopf with zv.'ei feathers? in the Ausnehmunn opri ruc I t, v / obri ^ ie ftirnfin'te

7?, 43 ^ 55 2 / ^. 06.76

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des ^c cha ft os? between the 7 u η η ο η 7 runs in .. P ei further pressure wassinrt öor Punr ¹ 3 dip Zunnen 7, rli eyelets move downwards and snap behind the ¹ ! '.' and v.iedor back, after the release the push button 1 it goes into his
Rest lane back. Pie a up ere η Find the springs P oil ei th
on the zu no en 7 up to their [ndlaoe in den 'iu ten 6.

^{To remove a handle 1} , the components under the guide plate S must be removed and the side parts on both sides of the recess 4 must be pressed together so that P
I ^ the pund 3 between the tongues 7 hinduvchpa ^ t.

The contact parts consist of όςτ rivet base plate 10 (Ficiur P), which forms the common contact, and one
Stack of insulation panels 11 to 14, between which the contacts, such as [-, 15, ran. There are two types of isolation plates, one IE is fully formed in FIG. 3, the other in FIG. 4 is only partially formed.

The keys are arranged in the standardized 3x4 scheme; the
Contact arrangement contains three columns of contact strips corresponding to Fiour 6 and four rows of contact strips.

2C s ρ calculating Fiaur 5. The latter are built in at 90 degrees

turned 1tenkontaktstreifen the spa, never contact strips are fashioned, (e * ?; you contact · bs chni tte 16 each on one of the 'read 17 (3 Finuren and rest 4) as a P ns ch would be for the contacts with the Serve Pückganq. All contact sections

are the same, their cross-section is shown in FIG. 7.

G 7? 4 34 5 5.0

J .0. l; rown -! \ J. Stocker 1-1

The shipping ti ie those small circles in the insulation of the Fiquren 3 and 4, in the contact strip of Figures 5 and and in oer base plate P are holes for receiving bolts for assembling the button set.

Figure 9 shows one of the push-button recesses in the Fu'hrunospl atte 5 without push button in plan view, while in Figures 10 and 11 two cross sections of the recess are shown. From this it can be seen that the bottom of the Recess that limits the movement of the push button, is formed by four quadrant sections 20, wherein between the two pairs of them the above-mentioned tongues 7 lie.

Next is the button set with a metal base plate (Figure 1) provided, which forms the common contact over which three contacts 15 are, against each other, against the base plate IU and against the guide plate 5 through the Isolation plates 11 to 14 are insulated. VMe already suspects it is the insulating plates according to Figures 3 and From Fig. 1 it also appears that three movable contacts were located under each push button 1, the ends of each Group of three, as shown, align.

When a push button is pressed down, it must first be moved against the force of the spring P- until a certain point is reached, after which the spring supports the movement. This creates a snap effect. During the movement, the top contact is pressed down and touches the next contact, or in turn

G 7 2 ί \ 34. 5 5 - O

J.G. Grown-P.J. Stocker 1-1

comes into contact with the third contact. 0 i e further movement brings the lowest of the three contacts to the BerUhrunn with the base plate 10. The push button is then in the in Figure 2 position shown.

When the push button is released, the spring force is the deflected Contact sections strive to move the push button upwards, which is initially due to the force of the Spring 8 happens, but is then supported by this. This reverse snap effect makes the push button returned to the rest position.

In addition, it should be added that the number of contacts under a push button can be different. An advantage of the The above arrangement can be seen in the fact that the contacts at the actuation lie between the push button and the base plate, which reduces the tendency to bounce and the contact pressure is improved, so that precious metal contacts are superfluous

List of reference signs

1 Push button 2 shaft 3 Federation a Recess 5 Guide plate 6th Groove 7th tongue 8th feather

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9 - - - ase e 10 G round flat ttP 11th I. s ο 1 i e r ρ 1 a - ttP 12th I. soli erpla Section ttP 13th I. soli erpla ttr- 14th . I. soli erpla 15th K onta V t chni tt 16 Contact abs 17th N 18th - 19th - 20th

5 claims 4 pl. Drawings

7243455 24.oe.7S

Claims (4)

G 7 2/13/1 5 5.0 J, G.ßrown-P.J. Stocker 1-1 claims 1.) Push button switch, especially for button sentences in telephones, the push button of which is guided in corresponding recesses in a guide plate and is provided with a shaft that actuates the contacts, as oekennzei chnet, dap. dieAusnehmunnen in the guide lath (5) for receiving the push button (1) with π 1 calibrated on the circumference ν, undercut grooves (G) are provided, in each of which the outer ends are provided are mounted by springs (8), the inner ends of which attack the shaft (2) of the push button (1), the resilient lengths of which are greater than the distance between courage (6) and shaft (2) and their bearing points on the shaft (2) in the rest position of the key above, in the actuated position below the level t for anger (6). 2.) Push button switch according to claim 1, characterized in that that the bottom of the recess in the guide plate (5) has flexible tongues (7), between the free ends of the button on the tongues when the push button is returned abutment collar (3) nested shaft (2) pushed through is. 3.) Push button switch according to claim 1, characterized in that the shaft (2) is provided with an axially directed recess (4). 4.) Push button switch according to claim 1, characterized in that the springs (8) have a substantially H-shaped plan and each with a free leg in a I.ut (6) of the recess öer guide plate (5) pinorsoits and dps shaft (2) of the ^ back button (1) on the other hand op-1 a π ertsi η ''. 7243455 24.ca76 - ic - G 7 ? <Ί 34 5 ^r;. η ι !. Π. nrown-P ..). Stoc before 1-1 1.) Hruc Hastens cha 1 tf-r according to fnspruch 1, thereby npkenrzeichen, rl a P dir- F r 'd ρ r η (P) ei η ρ η im wese η ΐ 1 irh ρ η ιί-form HrundriP cufv / pison and r "iv. J ^P ρ in ο π fr ρ ie n legs in a '! Nt (f ·) der /' ■ usnehrruno der F'ihrun ^ sp 1 a 1.1 (-. (5) on the one hand and the shaft (2) of the, Π r υ c V - button (1) on the other hand, are coated with oil. F).) Push button switch according to Ansoruch 1 and ^, thereby marked, dap. two springs (P) overlapping each other are arranged. An / ki ■ - 7.1.1976