DE2816707A1 - CODE SWITCH - Google Patents

Description

f ί-ϊ ί b / t J- . ή

"Coding switch" _w

25 o142 / 25 o142 a April 14, 1978 / DrBi

PATENT ADVOCATE

Dr. Richard Bierl

7218 Trossingen Sonnenweg 2

West Germans

Elektrogerätebau GmbH.

477o S 0 E S 1

Coding switch

The "present invention relates to a coding switch for converting the digit values of an in η steps adjustable linear geometric size, e.g. a V / angle, a hub, or the like., In a according to number of closed contacts of an m-bit-pole, n-stage switch assigned to a code modulo m / n, which can be electronically queried by machine and supplemented with identification data, with a switching device, to the contact springs and mating contact or bridge tracks belong, which in two to the shifting level the geometrical size are parallel surfaces,

9098U / OOU

28Ί6707

with a step adjustment mechanism for the η steps, in an at least approximately cuboid housing, its side surfaces in the case of modular stacking of identical coding switches to form a switch package if necessary, rest against one another via an intermediate layer, and one on the front and one on the rear Has end face.

As is well known, coding switches of the type described above find their main field of application everywhere wherever directly by hand or indirectly by means of a mechanical or electromechanical device or automatically adjustable data, such as digits, numerical values, or mechanical quantities in digital form in converted to a machine-electronically readable form, ie. electrically queried and then if necessary with otherwise preselected data or identification data in an electronic data processing circuit arrangement entered and linked there with the entered or specified target data. For example should switch signals or pulses for triggering other electrical or mechanical processes or the setting of appropriate operating conditions can be obtained.

Known coding switches of the type in question generally have the disadvantages that they are either complicated in structure, which means an expensive production, or that they are made of them Requirements regarding the reliability of their technical function, possibly only in connection with the operating conditions, do not meet to a sufficient degree. So is a coding switch known, which - in order to ensure simple operation and

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Driving-free function even under conditions that require a good seal against the ambient atmosphere, to enable - with two mutually perpendicular axes for the adjustment knob "on the one hand and the number roller is equipped on the other hand (DE-OS 24 61 231).

Coding switches, which are set by a thumbwheel or by one or two pushbuttons, have in the known embodiments - apart from their complex assembly - the disadvantage of a switching device with a contact plate, the connection holes of which have to be drilled in a complex manner, and more or less complicated sliding contact arrangement, in which - apart from the known basic disadvantages, such as _e that this mostly rational production methods such as a solder bath are closed (according to DE-OS 24-61 231) - high contact quality due to a costly effort already for the first time -Assembly and then as a result must be paid for repeatedly and repeatedly required laugh adjustment.

In the case of a coding switch with a different design - in conjunction with an electromechanical one scanned counter - is nit a £ tia? lying in the surface of the contact springs Axis a contact spring set is actuated via a multi-part lever arrangement with springs, separate bearings, etc. (DE-OS 24 31 565).

All of the devices of the prior art described have, as already explained in some cases, a rather complicated mechanical structure and

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'■ 28Ί6 7Ό7

sometimes serious functional deficiencies. The present invention is therefore based on the object of substantially reducing the installation effort in a code holder of the type described at the outset, which is therefore sensitive or difficult, and independently thereof To avoid adjustable assemblies and so - with the most largely erased punlctions reliability - the Assemblability In series production without specially trained Faehforce and without complicated auxiliary assembly tools and. without rework or adjustment work to be guaranteed. .This task naturally includes that the Number of mechanical and electrical parts of the coding switch compared to the known training is significantly reduced.

The object described above is achieved according to the invention with a coding switch of the type described at the outset thereby-solved that m contact springs in. are fixed in a plane parallel to each other, electrical which form one pole of the multi-pole holder and with also stationary in a plane parallel mutually lying contact tracks cooperate; acted upon by a cam disk, the cams of which ".in-in. concentric or" parallel to each other and to the displacement plane parallel paths according to the circuit program of the code with regard to the position and adapted to the length of their sections assigned to η steps are sized and arranged. ; .-

Even with this basic equipment of the coding elderly compared to the state of the art, the technical step has been achieved that reduces the space requirement is by having several components or assemblies, for example in a particularly space-saving manner in several

90 984 4/0044

ren are arranged in parallel planes lying one above the other. This technical advantage is increased by by some components or assemblies at the same time several, eg. electrical and mechanical functions meet, such as. the function of the connection and the contact or the electrical connection the contact springs with each other and the mechanical with the terminal lug. This already creates at least one Circuit board saved along with the necessary holes and soldering.

This progress is achieved in that the connections of the contact springs and / or the contact tracks one perpendicular to the plane of displacement, preferably protruding through the rear end face of the housing on the one hand and / or the contact springs together with their terminal lugs, which are preferably bent at right angles by means of a bridge in one piece to form a leaf spring, in particular with stepwise offset length sections are united on the other hand. '

The basic idea of reducing the number of parts, including the Saving of cost-increasing drill holes for soldering in electrical components and connecting wires heard, v / if the saving of assembly time sukocmt particularly great importance, then realized, if the contact tracks as wires, preferably in particular over the length alternately after the two Sides of open keyways and / or molded keyways Guides and / or square openings are formed supported on the one hand and on the other hand as wires the contact tracks the connecting wires of components, such as. Diodes, resistors or the like »and as connection

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wires of the coding switch their connecting wires on the mutual Serve end. The basic principle that is essential to the invention is therefore superordinate to these special features based on seeing as many parts of the coding switch as possible as one functional unit.

The novel construction principle with the features described above is also distinguished Essential to the invention, it is also characterized by the fact that it is readily available with different to known step setting mechanisms can be combined in a simple and logical manner so that for this no additional space requirement "of substantial effect arises. In this way, the Mt of the invention achievable technical progress is increased if the step adjustment mechanism is externally preferably operable by hand on one of the end faces and / or adjustable by means of a so-called thumb wheel must be, or by means of a ratchet mechanism known per se, preferably by a pushbutton protruding through one of the end faces by a positive or, if necessary, per push actuation a negative step can be set.

To a particularly important part of the essential to the invention Special features of the subject of registration include those that specifically target the refer to at least approximately cuboid housing. This includes first of all that the housing consists of only two parts, namely a base body and a counter-fitting piece consists, which are seamless and / or can be plugged together and / or made of thermoplastic material are made.

- 7 9098U / 00U

In the case of a coding switch with a concentric arrangement of the squats, it is then particularly advantageous to if there are holes for the mutual adjustment of coding switches or with an end piece for packaging and support surfaces to hold the leaf spring, a V / ellenstump for the circular 'support disc " the crouching in one part, preferably in the base body of the housing, and / or a clamping counter-support surface and Mandrels for adjusting the leaf spring, a fitting hole for the stub shaft or its approach to the mutual spatial adjustment of the parts, as well as for receiving the pin of the neighboring one assigned to the bores Coding switch or /. End piece housed in the other part of the housing, preferably a counter-fitting are. Finally, it is in the further enhanced development of the coding switch according to the invention

useful if, in addition, the -

- "Base body and the counter-fitting piece on the pin

the one outer surface parallel to the displacement surface and the bores on the other outer surface at corresponding points and / or are connected to one another in a positively adjusted manner by snap elements _o

In all due to the above-described training a code switch with a concentric Finally, when arranging the squat, it is generally advantageous if the squat wearer signs on his perimeter according to the numerical values to be converted and at least, of one of these characters on the peripheral surface opposite part, preferably on the front face of the housing, made of thermoplastic material, if necessary with imprint of countersigns.

909844/0044

By training the code switch using at least several of the described Characteristics will above all - apart from the already mentioned possibility of a space-saving construction - the technical one Progress achieved that when assembling only a few - automatically - prefabricated parts without specially designed auxiliary tools and without additional work (e.g. for adjustment) already by assembling as a result of the 'ingenious shape of the parts with molded parts adapted to one another in a very small space and corresponding counterparts are held in the desired position, spatially assigned and forced adjustment.

A further improvement of the subject matter of the application is above all through the last mentioned Feature justified because the set numerical value can be easily read from the outside and yet the housing is it as a whole transparent or with a one-piece molded window - already because of the constructive Shaping largely sealed without additional measures in connection with the assembly of the code switch is trained.

The following is an embodiment of the Invention explained in more detail with reference to the drawing. They represent:

3? Ig.-1: the coding switch in the assembled state

a) under review

b) in section (A-A in Fig. 1c)

c) in plan view

Fig »2: the mating fitting of the housing

a) in the (lateral) section A-S of FIG. 2b

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b) viewed from below (inside)

c) in (lateral) section C-D in Fig.2b

3? Igo3: the one made of co nt act springs and a connector leaf spring united by a bridge, on average

Figo4: the cam disk, partly in section

I? Igo5: the slide of the latch mechanism

for step adjustment of the cam disc

I "ig.6: the basic body of the housing

a) in a side view (from the outside)

b) in the - - top view

c) in the other side view

Fig. 7: the counterpart of the housing

a) in one side view

b) in the front view

c) in the other side view

Figure 8 _o: the leaf spring of Figure "3 in plan view

Fig. 9: the cam disk

a) in plan view

b) in the bottom view

Fig.io: the main body of the housing

a) laterally in section E-F (Fig. 1 above)

b) in the section AB (Figure 6b _e)

c) laterally in section G-H (Fig.iob)

In FIG. 1, all three parts are useful a, b and c viewed simultaneously v / earth - shown,

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as on "or in the base body 1 the counter-fitting piece 2 on or": is inserted so that the housing formed from them is at least approximately cuboid the bores icpcisx 3, 4 on the underside of the base body 1, the molded fitting pins 5, 6 ³ ^ the top of the counter-fitting piece 2 and thus lead to a spatially defined and suitable and, if desired, clamped assembly of the G-housing of two coding switches . In the bottom opening 7, the pin 8 is visible, on which the! Spring 9 for the tension of the slide 1o for the step adjustment mechanism is kept plugged on one side and on the opposite side is plugged onto the conical extension 13, so that the slide with its the push button 12 protruding through the front end face 11 of the base body 1 into the rest position with stop ... on the inner surface of the front end face 11 of the housing (1, 2).

On the other bottom surface 14 of the base body 1, which is used as a side surface in the case of building block-like stacking acts, the ¥ ellenstump 15 is formed, the bearing of the cam disk 16 is used, which in turn is designed as a numeric roller, the ¥ e11enstump with its approach 17 in the fitting hole 18 of the counter-Paj3stück 2 is immersed and both its adjustment and the spatial assignment of base 1 and Counter-fitting 2 is forcibly set, ^ wipe. the latter is also the leaf spring 19 with the through the bridge 2o mechanically in one piece and thus also electrical connected contact springs 21 to 24 - in Fig.te Drawn in dashed lines - between support surfaces and Kleinmr-G-egenstütbzflächen, as in connection with Fig. 2, 6,

'.- "■'; ■■ '" ■' - ■■■ ... ■■■ "" "" ■ - ■ "■ - 11 - ■ .-" - ■ '..;

9098UZQtUi

7 and 1o will have to be illustrated in more detail with the help clamped by thorns 25 and bores 26, etc. and fastened forcibly adjusted.

The contact springs 21 to 24 are deflected by the cams 27 on corresponding sections of the pitch circles 28 to 31 - upwards in FIG. In this, held in keyways 32, 33 or keyway-like shaped guides 34, the wires 35 acting as contact tracks, between which and the contact nose 36, a contact is closed when the contact spring 22 is applied, so that then the circuit between the associated the rear one End face 3 ^r 7 protruding connection and the connection flag 39 of the leaf spring 19 or the bridge 2o is closed. In the exemplary embodiment in FIG. 1, a coding of η = 10 steps corresponding to the decade ο to 9 on η = 4 bit lines is implemented, for example according to the BGD code.

A further developed exemplary embodiment is shown in FIG. 1, because the connection 38 the one connecting wire 4o of the built-in diode 41 and as a wire 35, which is used as a G-egenkontakt for the contact spring 19 acts, the other connecting wire 42 of the diode 41 is used. This is particularly illustrated convincing the essential grounding idea of reducing the number of parts, connections, mechanical and electrical connections etc.

Fig.2 shows - again useful at the same time Consideration of parts a, b and ν - the G-egen fitting piece (2 in Fig.1), the cover plate of which has four different ones thick zones 51, 52, 53 and 54, v / o-

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909844/0044

"at the relatively thin zone 51 from the thicker 52 through the partition 55 is separated, the --.vie already out Pig.1 (but without the special digits) is recognizable Leaf spring 19 or its bridge 2o between itself and the counter-support surfaces (not shown here) of the main body stuck .. Between the thick zones 52 and 54 is the thinner 53 with guides 56 formed in the manner of a keyway, which dovetail with the keyways 57 the thicker zones 52 and 54 serve as contact tracks Hold wires 35 so that they are on one side in the central zone 53 and on the other side are fixed in both outer zones 52 and 54.

The rest are in Pig. 2 nor the mandrels 57, 58 for adjusting the leaf spring 19 or its bridge 2o, as well as the snap elements Pinger 59, όο or nose 61 can be seen, with the help of which the base body 1 and the counter-fitting 2 of the housing fixed, but nevertheless are detachably connected to one another at least approximately seamlessly and with forced adjustment. The fitting bore 62 is also shown in broken section in Pig.2a.

Pig.3 shows the leaf spring used in the exemplary embodiment (19 in Pig.1b) in section with - from the left to the right - the terminal lug 71 bent at right angles, the 2-part 72 serving as a bridge and the actual Contact springs 73, which step against the bridge in height are offset and at the longitudinal point 75 associated with the axis 74 of the cam disk (not shown) the nose-shaped crank 76 and at the end that too has cranked contact fingers 77, which the latter when acted upon by the ITocks with the as contact tracks serving wires (35 in Pig.1b) cooperates.

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- yr -

In Fig.4 is - spatially again in the same way as the leaf spring of Fig.3 corresponding to the actual Installation position assigned axially - the cam disc 81 is shown, the left-hand one being in section Half of the hole 82 for the stub shaft (15 in Fig.1b) and the guide neck 33 with the shoulder 84 and the upper edge 85, both of which are used to fix the height on the stub shaft (15 in FIG. 1) between the slide (io in FIG. 1) and counter-fitting (2 in Fig.1) are used. On the perimeter 86 (not shown here) are the digits corresponding to the selected angle division and the one for the Implement applicable code, ie. attached as digital values according to the adjustable angle steps.

The slide (io in Figdb) belonging to the step setting mechanism - see Fig. 5 - consists of the base plate 91, the molded pushbutton, the guide plate 93 with the conical extension 94 (13 in Fig. 1b) for the shown in Fig.1b spring, as well as because of displacement oval-like shaped aperture 95 for the shaft stub (15 in FIGURE 1b), and finally the two zahnäl- ^ olichen top page 96, ^N 97, of which the one at ~ 96 first engaging the SternKH- wreath 98 (shown in dashed lines) of the cam disk when the pushbutton 92 is pressed in causes a 'partial counterclockwise rotation of the cam disk, whereupon when the pushbutton 92 is released the top finger 97 continues this rotation and finally forces the setting of the cam disk in the position advanced by one angular step. The oval-like opening leads and limits the displacement of the slide (io in FIG. 1b).

-H-9098U / 00U

In Pig. 6 the base body is from the front face 1o1 (a), iron from one side surface (here above, b) and from the other, the rear. Face (face) 1o2 (c) shown; in Pig.6a the opening 1 o3 for the push button (92 in? ig.5-) V- in Pig.6c you can see cutouts 1o4 to 1o7 for the external connections «In Pig. 6b, the clamp counter-support surfaces 1o8, 1o9 with the bores 11o, 111 (26 in Pig Incidentally, dEsangeforates pin (8 in Pig. 1a and 1b), the bottom opening (7 in Mg-Ia), and the ¥ elle blunt 112 with its projection 115 (15, 17 in Pig. 1b) exactly according to the ^{z eiclinung:} the Pig.1 formed and arranged; only in the interest of better understanding the slide (ip in Pig.Ib) of the adjustment mechanism is also shown in dashed lines, ν.; -. ..--. "■." - ■ · ■ - - ■ -. -

Pig.7 is also only intended to provide a better understanding of the G-egen adapter (2 in Pig.1); with 121 are the pins (5, 6 in Pig. 1c), with 1 22 ", Λ 23 the Sahnappfinger (59, 6o_ in Pig.2), with 124 the spikes (57» 58 in Pig.2), with 125 the zones of different thicknesses are denoted by currencies, keyways, etc. In this illustration, the stepped cutouts in area 126 are to be emphasized, which together with the corresponding cutouts (1o4 to 1o7 in Pig “6) or the lobe openings in between for the Leave the connecting wires. - "■ -. ■; ". _; '''-''--. ■ -:. "■:'"- ^.:

- The representation of Pig.8 leaves the leaf spring (19 in Pig.Ib) can be seen in the plan in their details, with the contact springs 131 to 135, the 3rücke 136,

90984Λ / 0044

the connecting lug 137, the bore 138 and the recess 139 for receiving the mandrels (57, 53 in Figure 2), the crankings 14o and the contact fingers 141, the axial assignment in the drawing compared to the Fig.7 and the Pig «S 9 corresponds to the spatial relationships in the installed state.

In Figure 9, the cam disk is in part a View of the cams 152 distributed in sections according to the code on the pitch circles 151 length and in part b the bottom view with the star ring 153 for the stepping mechanism.

In Fig.io shows the section E-P (see Fig.1ob) the Pig.ioa again the rear cutouts 161 of the Base body and the counter support surfaces 162, 163 for the leaf spring, not shown, and the pin 164 for the spring belonging to the stepping mechanism, also not shown. Pig «1 ob corresponds approximately to the Drawing in Pig.1b, so that detailed information can be dispensed with and reference can be made to it instead; in the Otherwise it only serves to provide a better overview. Section G-H of Pig.ioc shows the inner surface of the front end wall with the recess 165, which optionally - if not the entire base body - at least for itself must be transparent material so that the lettering on the circumference of the cam disk (16 in Fig. 1b), can be read from the outside. The other constructive details are, if not in themselves, then on everyone Case understandable in conjunction with the other figures. The assignment of all axes to each axis also serves this purpose Partial drawings of both FIGS. 2 to 6 and FIGS. 7 to 1o.

909844/0044

Claims (1)

"Coding switch ¹¹ Claims 25 o142 '/ DrBi H. April 1973 PATENT ADVOCATE £ QIO / U / Dr. Richard Bierl ^ _ " 7218 Trossingen Sonnenweg 2 1y Godier switch to implement the numerical values of a linear geometric variable that can be set in η steps, e.g. of a "kinkel, a hub, or the like., In a number of closed ones arranged according to a code modulo m / n Contacts of an m-bit-pole, n-stage Switches that can be electronically queried by machine and supplemented with identification data, with a switching device to which contact leathers and mating contact or bridge tracks belong lie in two surfaces parallel to the plane of displacement of the geometric quantity, with a step adjustment mechanism for the η steps, in an at least approximately cuboid housing, its side surfaces in the case of modular stacking of identical coding switches a switch package, if necessary, rest against one another via an intermediate layer, and the one on the front, as well as having a rear face, - PA / SA 2 - 909844/0044 ORIGINAL INSPECTED - PA / SA ^ - 2 B I b 7 O characterized in that m contact springs (21 to 24), which are fixedly arranged in a plane parallel to one another, electrically form one pole of the multi-pole switch and cooperate with contact tracks (55) which are also fixed in a plane parallel to one another, from a cam disk (16) are applied, the cam (27) inm concentric or _o mutually parallel and parallel to the displacement plane tracks (Eeilkreise 28 to 31) are dimensioned in their adapted to η stages associated sections corresponding to the switch program of the code as regards the position and length ier and arranged. 2 «Ooding switch according to claim 1, characterized in that the connections (39) the Kontalfctfedern (19) and / or the contact tracks , 'Wires 35) a perpendicular to the plane of displacement, The rear end face (37) of the housing protrudes through the gate Iodination switch according to one of Claims 1 and 2, characterized in that the contact springs (21 to 24) together with their preferably right-angled bent connecting lug (39) through a bridge (2o) in one piece to form a leaf spring (19) in particular with stepwise staggered length sections are united (Eigd or Fig. 3) « - PA / SA 3 909844/0044 ^ 3- ■ - PA / SA ^ - 4. Coding switch nach.einem of claims 1 to 3, characterized in that the contact tracks as wires (35) »preferably in particular over the length alternately to the two sides open keyways (32, 33 in Pig.1) and / or keyway-like shaped tours (34 in Elg «i) and / or Yierkant openings (34 or 56, 57 in Pig «2) are stored. 5. Coding switch according to claim 4, characterized in that as wires of the contact tracks the connecting wires (4o, 42) of components (41), such as. Diodes, resistors or Like. And as connecting wires (33) of the coding switch their connecting wires on the mutual Serve the end (JPig.1). 6. Coding switch according to one of claims 1 to 5, characterized in that the pitch adjustment mechanism van outside, preferably at one of the. Front surfaces (1t), can be operated by hand «, 7c coding switch according to one of claims 1 to 6, characterized in that the step adjustment mechanism by means of a so-called thumb wheel is adjustable. - PA / SA 4 9098U / 00 «4 - PA / SA Jf- 8. Coding switch according to one of claims 1 to 6, characterized in that the step setting mechanism is adjustable by means of a ratchet mechanism known per se, preferably by a pushbutton (12) protruding through one of the end faces, by a positive or, if necessary, a negative step for each actuation (]? ig.1 bnwo Figc5) y in particular by means of two attachment fingers (96, 97 in FIG. 5) which are offset in a star ring (98). 9. Coding switch according to one of claims 1 to 8, characterized by a housing with a base body (1) and a counter-fitting piece (2) which are seamless designed and / or plugged together and / or made of thermoplastic material (Figures 1, 2 and 6). 1o. Coding switch according to one of Claims 1 to 9, with a concentric arrangement of the cams, characterized by bores (3, 4 in Fig.1) for mutual adjustment of coding switches or with a single end piece in the packaging and support surfaces (1o8, 1o9 in Fig. 6) to hold the leaf spring, a shaft stump door afe circular Carrier disk (16) of the ITock in one part, preferably a base body of the housing and / or a clamping counter-support surface (55 in Fig. 2) and mandrels (56, 57) for adjusting the leaf spring (19 in Fig. 1), a fitting bore (62) for the shaft - PA / SA 5 - 9098U / 0044 - S- - PA / SA ^ - butt 15 or its approach 17 to the spatial mutual adjustment of the parts, as well as for receiving the pins assigned to the bores (3, 4) (5, 6) of the adjacent coding switch or end piece in the other part of the housing, preferably a counter-fitting «, 11 _q coding switch according to claim 1o, characterized in that the base body (1) and the counter-fitting piece (2) attach to the pins (5, 6) the one outer surface parallel to the displacement surface and the bores (3, 4) on the other Outer surface at appropriate points aufweisfei (Fig. 1) and / or by snap elements (59, 6o and 61 in Fig. 2) forcibly adjusted with one another are connected", 12. Coding switch according to one of the speeches 1o and 11, characterized in that the loop carrier carries on its circumference (86 in Pig. 4) ^ gauges according to the numerical values to be converted and at least the part opposite one of these characters on the circumferential surface (1o2 in J ¹ Xg ₀ O), preferably on the front face of the Housing made of thermoplastic material, possibly with an imprint of counter signs. 909844/0044