DE1018471B - Device for selecting one of several closely adjacent positions, especially for step switches in telecommunications systems - Google Patents

Description

GERMAN

The invention relates to a device for selecting one of several closely adjacent positions, in particular to select an output of a selector or a contact spring set of a switch in telecommunication systems. The invention can be used to e.g. B. from several in the order one after the other arranged contacts to select and operate one; but it can also be used for other setting, Actuation, measuring or display purposes, especially in remote control devices.

There are already so-called rod or case selectors with just moving setting slide known actuated several nonius-like offset contact spring sets opposite a fixed contact field. here ten superimposed decades with ten participant contacts each form a 100-part contact field, the is crossed out in the selection of participants in a decade election and then in an individual election. In the decade selection stage is the setting slide with the contact spring sets offset in vernier divisions controlled to the zero position of the desired decade. The participants are then selected within this decade in single steps. The vernier used here for the decade selection has Device for selecting one from

several closely adjacent positions,

especially for step switches

in telecommunications systems

Applicant:
Telephony and signal construction

Lehner Si Co. KG,
Essen copper rotation, Fahrenberg 6

Carl-Ludwig Lehner, Essen-Heisingen,

and Max Amann, Suttgart-Bad Cannstatt,

have been named as inventors

formed adjusting member is smaller than the number of selectable fixed positions. This achieves

large spacing, since every decade ten 25 that the adjustment path of the adjustable setting member Tilhkk li Di hl is smaller than the length of the adjustment range, but

greater than the distance between two positions.
In a further development of the inventive idea

from a group of contact spring sets arranged next to one another by a vernier adjustment element with two to nine noses a contact spring set selected, switched through and held with the help of several electromagnets or released.

This ensures that in a z. B. caliper with ^ "- division, is also not 35 11 part contact spring switch, the electromagnetic suitable because the adjustment path and the vernier steps are actuated by a vernier adjustment element with four become small and there is a risk that neighboring noses will have a vernier step of a quarter of a contact contact be disturbed or even operated with. distance and a total adjustment of a quarter For example, if there are ten contacts with a division of the sum of all contact distances. That makes distance of 6 mm next to each other, then a 40 results on the one hand such a short length of the switch that the

Participant contacts are. The contact spring sets adjacent to the selected contact spring set are not influenced by this great decade Nonius. The return paths for the adjustment shims Are very big.

For the arrangement and actuation of several contacts arranged side by side in a narrow space this known device is not usable.

A vernier with small adjustment paths, like one

Adjustment path from

(10 ■ 6) - 6
10

= 5.4 mm.

The vernier step per contact is then only
5.4

10

= 0.54 mm.

Vernier noses can be accommodated with the adjusting member within the contact field width, on the other hand small adjustment and reset paths, which are achieved by small magnets due to the small inertia forces can, but are large enough to ensure safe operation with the usual dimensional tolerances. The switch can be operated at high walking speeds due to the small mass movements. After step-by-step actuation of the vernier adjustment element

If there are fifty contacts of the same type, only

5.88 mm adjustment path for every fifty contacts and one 50 by means of a small pulse magnet, the adjustment

Vernier increment of 0.1176 mm. Such known vernier members are selected by a pressure magnet

facilities cannot be used for these purposes. Switch through the contact spring set and hold it. A return

The invention avoids these disadvantages in that the actuating release magnet causes the release of the setting

the number of subdivisions of the vernier-like member from each selected setting into the rest

709 758/154

3 4

Position. The inventive way and an embodiment of the invention is in the

Division of work can be represented with the smallest movements and drawing. Show it

low forces are switched. So only very Fig. 1 shows a device with an adjusting member with twelve

requires small magnets with low power consumption. Noses,

The material expenditure, the overall dimensions and 5 Fig. 2 a device with an adjusting member with two

the weight will be particularly small. According to noses,

the low drive powers are also the natural Fig. 3 a device with an adjusting member with three

borrowed wear and tear, so that fewer maintenance noses,

costs than with other voters. 4 and 5 show a device with an adjusting member

use of precious metal contacts for the spring sets i ° four noses in different positions,

results in good switching reliability with the slightest noise. 6 and 7 show a contact spring set switch in elevation

With the design of the vernier and side elevation according to the invention,

The setting member is thus a particularly economical Fig. 8 The setting member of the switch according to Fig. 6 and 7,

Component created. 9 shows a circuit arrangement for the control

Another application and design of the 15 switch according to Fig. 6 and 7,

inventive concept, the arrangement of FIGS. 10 and 11 results in a circular device in different

Vernier scale along a circle in such a way that from a different position,

Group of contact spring sets arranged in a circle, FIGS. 12 to 14 a rotary switch in a view and

each of which has one or more contacts, section,

by an adjusting member with two to nine lugs a 20 Fig. 15 the selection member of the rotary switch according to

Contact spring set by hand using a rotary movement from Fig. 12 to 14.

selected, switched through by means of axial displacement. In the arrangement shown in FIG. 1, a vernier is through a holding magnet is held and formed at adjusting member 21 with twelve lugs. A rest release by spring force in the rest zero position Zero position and eleven selection positions are through the jumps back. By this invention from 25 lugs 0 to 11 of a fixed rail 20 with a Formation of a rotary switch is achieved that is shown at a pitch of 6 mm. The eleven part Use of a vernier with z. B. three noses vernier adjustment member 21 carries a display nose 22 and and distribution of e.g. B. eleven sets of contacts on the circumference of twelve vernier noses 0 to 12, with nose 0 also counting, of the switch only an angle of rotation of 120 ° is required The sum of all the spacing of the rail 20 is the one carried out with a single movement of the hand is 6-11 = 66 mm. The total length of the vernier can be, the individual positions are still good on the slide 21 by a pitch of the are distinguishable. In the process, the dimensions of the rail 20 become smaller, that is to say 66 - 6. = 60 mm. This total des Switch very small; z. B. it can be eleven individual lengths is also divided into eleven pitches. Magnetic contact buttons with little material and space- For the adjustment path, the relationship then applies replace effort. He can also by remote control 35

be brought back to the zero position, which is done with the (12 6) - 6 __ _

known circuit switches is not possible. Another 12 Details of the invention are in the description

shown. for eleven selection positions. According to a further embodiment of the invention, since a maximum of eleven settings occur when selecting, the vernier step is pro

only one contact position is selected and operated

of several, preferably decadic 55

Contact groups through a multi-level vernier selection. ^ p = 0.5 mm Here, for the selection of the closest

Contacts within a group an adjusting element according to 45 on the indicator nose 22. Such a small vernier step is

of the invention with a vernier subdivision of z. B. generally not useful.

two to seven vernier noses from the already described two-part adjusting member 24 shown in FIG

Reasons used. The one taking place in the first election stage has an indicator nose 25. The fixed rail 23 is like

Decade selection uses the rail 20 in FIG. 1 dimensioned according to a further one. The total length of the

Embodiment of the invention an adjusting member with a 50 vernier on the slide 24 is at 5.5 pitches

Vernier subdivision of six to nine vernier noses per rail 23 smaller, that is

according to the number of contact groups and their length _{ΛΛ / ς} ra \ ts _m "dimensions. Such a multi-stage vernier adjustment

device can advantageously z. B. on stick voters, the adjustment path of the vernier adjuster 24 is for eleven

Rotary selectors or coordinate switches with 55 decadic divisions

Setting can be used. , yy . ß \ g λα

The advantages here are the short actuation -} - = --- = 33 mm.

because of the vernier adjustment members, so that with smaller "*"

Forces and higher numbers of steps are switched. The vernier step per contact is included

can. The return paths of the new vernier 60 03

links are also considerably shorter than the —7- = 3 mm

known adjusting elements without vernier actuation. the

Drive and return elements for the adjusting elements, on the indicator lug 25. In this version, therefore, are

such as B. Adjusting magnets or motors, spring force with the same spacing of the selection positions as

or weight storage, can be dimensioned considerably smaller 65 in Fig. 1 larger adjustment paths with larger vernier

will. steps has been achieved.

The wear and tear and maintenance are therefore much lower. The formula applies to dimensioning the adjustment path The overall dimensions of such a device are smaller.

Saving electricity and materials results in / _ _ ( ^w 'T) T

further economic advantages through the invention. 70 - ^e.g.

5 6

The vernier division per contact is The contact spring nipples 43 are used to close the

γ normally open contact springs 33.

t = TT-. The contact springs 33 are for a multiple circuit

(n 1) _{y n} yyyy-gy. Staggered length. Below on the cross member 41

The following mean: 5 is a solder lug strip 44 for the coil connections of the

I ₌ adjustment distance in mm magnets 155, 58, 61 and arranged for auxiliary contacts.

η = number of selection positions with zero setting; ^The vernier adjustment member 30 has, in addition to the four vernier

T = division distance of a selection position in mm; näselnemezwolfstelhgeSchnttver _Z ahnu _n g45. The

z = number of vernier noses; ff. ³⁰ Ff ^{8 lst Άη} ? ™ Axis 46 in the direction of the arrow

t = Nonius step in mm ^{10 rotatable and} mounted in the two housing side parts 48 and 49 so that it can be pushed against the action of a spring 47

Fig. 3 shows a vernier adjustment member 27 with three lugs (Fig. 8). The setting element 30 and an indicator lug 28 are in the rest zero position. The fixed rail 26 is dimensioned like the one attached to a damping disk 50 of the housing side rail 20 in FIG. For the vernier it is sometimes 49. The spring 47 is formed as a compression and torsion spring from the adjustment path ¹ S and holds the adjustment member 30 with a slight torsional

In-T) -T (12 x 6) 6 press against the rail stop 51 (Fig. 7) in order to then

L = - = - ^ = 22 mm when no contact is actuated and when the

^z adjusting member 30 sufficient distance from the lugs of the

Adjustment path. To have control springs 34. The two side parts of the housing

The vernier step is 20 48 and 49 are by means of a connecting plate 52

τ 22 of ^the screws 53 at the smallest separation joint 54

t = - TT- = -Tj-T ^ TT- - 2 mm. held together. The small pulse magnet 155 switches

(n 1) (IZ l) no intermittent electrical excitation by means of its intermittent

Fig. 4 shows a 4-part vernier adjustment member 30 with four pawl springs 56 the adjustment member 30 via the stepping

Lugs and the indicator lug 31. The fixed rail 29 is 25 toothing 45 to the right on the selected contact

also dimensioned like the rail 20 in FIG. position against the action of spring 47.

The adjustment path for the vernier is The locking spring 57 prevents the with every step

, j, ·. j, π 2 61 6 return of the adjusting member 30. The pressure magnet 58

L = - —-— = - j- = 16.5 mm rotates after the setting member 30 has been set

^ 30 using a bracket 59 and the anchor nose 60 the adjustment

Adjustment path. member 30 frictionally so that a nose of the adjustment

The vernier step is part of the control spring 34 of the selected contact spring set 32 raises so that its normally open contact springs 33

. L __ 16.5 _., To be closed. The release magnet 61 can through

~~ (n -1) (12- · 1) ~ '' 35 its pull lever 62, the locking spring 57 and the pawl spring 56 from the step teeth 45 of the adjusting member

In Fig. 5 the adjusting member 30 of FIG. 4 is to be pulled out 30 so that the adjusting member 30 to the left

selected position 7 set. The adjusting member 30 is by the pressure of the spring 47 up to the damping

here it snaps back by seven vernier steps of 1.5 mm each = 10.5 mm stroke 50.

has been adjusted to the right. This means that the Nonius nose 7 40 For remote control of a contact spring set switch

of the adjusting member 30 exactly the nose 7 of the rail 29 according to FIGS. 6 to 8 is a contact device according to FIG

opposite to. With a width of the noses of z. B. 1 mm via lines 1 to 4 with the contact spring set

carries the distance unfavorably adjacent noses z. B. switch II connected. The battery B is used for power

8 and 6 each 0.5 mm. So there is no risk of supply here.

z. B. when arranging a set of contact springs in each 45. Only four wire cores, lines 1 to 4, are disrupted or even required when other contacts are selected. When the pulse contact i is actuated (e.g. number switch, numeric transmitter, pulse relay), the numbers on the setting elements 21, 24, 27 and 30 pulse magnet IM via line 1, normally closed contact rml, indicate the order in which the associated vernier battery B, line 2 energized and the setting member 30 on noses in the selection are effective. 50 controlled the selected contact 32 step by step. By subsequently pressing the button AT (or a relay switch has eleven normally open contact spring sets 32 side by side) shown in Fig. 6 to 8, the pressure magnet AM is connected via line 2, the other with four individual normally open contact springs 33 via battery B ₁ normally closed contact ml, line 3 excited and each other, so a total of forty-four working contacts33. closes its own holding work contact ami via a control spring 34, 55 is the current weakening resistor R. The ends of the magnet AM now switches the selected contact 32 control springs 34 are, according to the taken through the setting member 30 and holds itself. Selective position, the vernier noses of the 4-part vernier. The pulse magnet IM is opposite to the actuator 30 when the AT button is pressed, as explained in FIGS. 4 and 5. switched off. To reset the setting member 30 in the normally open contact springs 33 are each paired in insulating 60 the rest zero position is used by the reset button RT (or rails 36 embedded, preferably glued in. Lugs 37 a relay contact). By pressing the RT button, the contact springs 33 are used to secure movement. Line 2 and 4, battery B ₁ break contact rm 1 of the off-All four insulating rails 36 are excited by a cover plate releasing magnet RM and thus the setting member 30 for 38 and a retaining rail 39 for the control springs are released by means of the return to the rest position,
of the two screws 40 attached to the cross member 41. 65 The normally closed contact rml switches for the time that each upper of the normally open contact springs 33 is supported by pressing the RT button, so that no intrinsic biasing occurs on a flange of the support columns switching faults. The auxiliary contact ami is turned off 42 to create a safe contact spacing. Andrückmagneten from the AT and the auxiliary The support columns 42 are at the top in a narrow transverse contact rml from the reset release magnet RM rail 55 held and stored in the crossmember 41 below. 70 actuated.

In marking circuits from ζ. Β. Coordinate selectors In telephone exchanges, the spring contact switch according to FIGS. 6 to 8 can be equipped with only one row of one normally open contact. As a twelve-digit counting relay it can thus be used for control and test purposes.

On company or election call lines for telephones, the contact spring set switch z. B. two Rows of eleven working contacts each for switching through of speaking veins. An offset cam for each subscriber line can also be installed on the setting member be available, which actuates a latching contact for the elimination of participants.

As an 11 to 52-digit contact spring set switch, it serves as a replacement for voters in the known circuits, but with the advantages described here. At z. B. 26-, 32- and 52-digit training with two to five each Working contacts can preferably be used in private telephone exchange systems. The dimensions of the switch are of course larger. The adjustment element is dimensioned according to the contact spring replacement points.

In the application example of the invention shown in FIGS. 10 to 15, there is a vernier adjustment member 70 with it three lugs arranged in a circle opposite a fixed ring 71. The adjusting member 70 is rotatable about the axis 72. The vernier noses I, II and III of the adjusting member 70 are

offset from each other by angles a1, a2, a3 and -.

The eleven contact points 1 to 11 are located at twelve equal spacings around the circumference of the fixed ring 71. The rest zero position has no contact. The pitch - results from the arrangement

ΎΙ

tion of the contact points on the circle. This circular vernier is a derivative of the straight vernier in FIG. 3, and the same dimensions apply for this. The dimensions as explained in FIG. 2 and FIG. 4 apply to other circumferential graduations. FIG. 11 shows the adjusting member 70 of FIG. 10 adjusted to the contact 9. The vernier nose I of the adjusting member 70 is rotated to the right by the angle β and faces the nose of the contact 9 on the fixed ring 71. The vernier nose II is one step and the vernier nose III two steps before the next contact. In this way, only contact 9 can be actuated without disturbing neighboring contacts. The angle ßl indicates the total angle of rotation for the setting member 70 at about 120 °.

The rotary pressure switch shown in FIGS. 12 to 15 has eleven sets of normally open contact springs arranged next to one another in a circle 73 each with two individual working contacts 74 one above the other, so a total of twenty-two working contacts 74. All lower contact springs 74 are supported with self-prestressing on an insulating support plate 75. The lower normally open contact springs 74 have actuating tabs 76. All contact springs 74 are embedded in the insulating body 78 by gluing. The insulating body 78 carries apart from the insulating support disk 75, the holding magnet 79, which is held by the screws 80. The Z. B. three-part vernier adjustment member 70 is with its axis 72 in the cover 81 and in the protective housing 82 in a bearing bush 83 and in the core 84 of the holding magnet 79 with the axle extension 85 rotatably and slidably mounted at two points. The rotary push button 86 is attached to the axle 72. To achieve precise rotation settings of the Rotary push button 86 in the direction of the arrow serves a twelve-digit grid 87, which with the setting member 70 is an insulating piece forms. The holding magnet armature 88 is also attached to the setting member 70. To effect the twelve exact locking positions are used by two locking brackets 89 with the grid rollers 90. The locking brackets 89 are in bearing bolts 91 of the protective housing 82 and pull the two locking brackets 89 together by means of the tension spring 92, so that the grid rollers 90 in the grid 87 fix the exact selection position. By the tension spring 93 is on the Approach 94 the adjusting member 70 with the rotary push button against the rest stop 95 in the rest zero position drawn.

The scale 96 shows the contact locking points and the direction of rotation for the rotary push button. To z. B. the contact 9 to operate, the rotary pushbutton is first from its rest zero position to the right against the Effect of the spring 93 rotated in the direction of the arrow and then pressed as far as the armature stop 88. At the Pressing the lower normally open contact spring 74 of the selected position 9 closes and thereby the holding magnet 79 electrically excited.

The armature 88 of the holding magnet 79 thus holds the setting member 70 with the vernier nose I in the pressed position fixed. The second normally open contact 74 of the latching position 9 can now carry out its switching operation. Do you want Use both working contacts 74 for switching purposes, becomes a common pressure contact for all detent positions intended for holding the holding magnet 79.

If the holding magnet circuit is interrupted by local or remote triggering, the holding magnet 79 its armature 88 loosens and thus brings the setting member 70 with the rotary push button 86 by means of the tension spring 93 into the rest position to the stop 95.

The invention is not restricted to the exemplary embodiments described. It can e.g. B. Others Contact types and more contact points can be provided. You can also use Contact spring sets display means or the like. Be provided.

Claims (16)

Patent claims: 1. A device for selecting one of several closely spaced fixed positions by means of a nonius-like adjusting member which can be moved relative to the fixed positions, in particular for step switches in telecommunications systems, characterized in that the number (z) of the divisions of the nonius-like adjusting member is smaller than the number (n ) of the selectable fixed positions. 2. Device according to claim 1, characterized in that that on the nonius-like adjusting member (24,27, 30) two to seven vernier noses for three to fifty-two selection positions are provided. 3. Apparatus according to claim 1 and 2, characterized in that several nonius-like Adjustment elements are provided which successively select one of the switching elements to be actuated cause a group of several adjacent groups. 4. Device designed as a contact spring set switch according to claim 1 and 2, characterized in that that from a group of z. B. eleven juxtaposed contact spring sets (32), of each of which has one or more contacts (33), by means of a linearly moved vernier setting element (30) a contact spring set (32) using electromagnets (55, 58, 61) selected, switched through and is held or released. 5. Contact spring set switch according to claim 1 and 2, characterized in that the vernier adjustment member (30) after the straight step movement (45) to select the contact position, a rotary movement for Performs actuation of a contact spring set (32) and in that the rectilinear movement is carried out by a pulse magnet (55) and the rotary movement a pressure magnet (58) is effected. 6. Contact spring set switch according to claim 1, 2, 4 and 5, characterized in that the vernier setting member (30) is from a selected switching position by means of a reset release magnet (61) by releasing locking members (56, 57, 62) under action a restoring force (47) jumps into its rest zero position. ίο 7. Contact spring set switch according to claim 1, 2, 4 to 6, characterized in that the vernier adjustment member (30) with preferably four vernier noses and a step toothing (45) together with a pressure switch bracket (59) is equipped. 8. Contact spring set switch according to claim 1, 2, 4 and 7, characterized in that the vernier adjustment member (30) below and preferably in front of the contact spring sets (32) with the associated setting and release members (56, 57, 62, 47) and accessible and visible in front of the electromagnets (55, 61, 58) is arranged. 9. contact spring set switch according to claim 1, 2, 4 to 8, characterized in that the vernier adjustment member (30) both when adjusting step by step and when jumping back into the rest position a rail stop (51) under rotary pressure, e.g. B. a return spring (47) is continuously performed. 10. Contact spring set switch according to claim 1, 2 and 4 to 9, characterized in that the contact spring sets (32) on a cross member (41), the vernier adjustment member (30) on an axis (46) and the associated Electromagnets (55, 58, 61) are attached between two housing side parts (48, 49). 11. Designed as a rotary pressure switch device according to claim 1 and 2, characterized in that from a group of circularly arranged contact spring sets (73), each of which has one or has several contacts (74), by a circularly moved vernier setting member (70) with two to nine Noses a contact spring set (73) selected by hand by means of a rotary movement, by means of axial displacement operated and held by a holding magnet (79) and that the vernier setting member at Release of the holding magnet by spring force (93) springs back into the rest zero position (95). 12. Rotary pressure switch according to claim 1, 2 and 11, characterized in that the vernier adjustment member (70) is connected to an axis (72), a rotary push button (86) and a rotary switch (87) and the Electro holding magnets (79) is opposite, around which the contact spring sets (73) are arranged along a circle are. 13. Rotary pressure switch according to claim 1, 2, 11 and 12, characterized in that the vernier adjustment member (70) with the holding magnet armature (88), the rotary raster (87) and the axis (72) forms a unit and in the holding magnet core (84) and in the bearing (83) of the Lid (81) is rotatable and axially displaceable. 14. Rotary pressure switch according to claim 1, 2 and 11 to 13, characterized in that a preferably three-digit vernier adjuster (70) for the selection of z. B. eleven contact spring sets (73) and a rest zero position serves. 15. Rotary pressure switch according to claim 1, 2 and 11 to 14, characterized in that spring locking clips (89) enclose the rotary raster (87) in such a way that it remains in effect even with axial displacement. 16. Rotary pressure switch according to claim 1, 2 and 11 to 15, characterized in that an isoher body (78) the contact spring sets (73), the holding magnets (79) and a protective housing (82) with cover (81) and that the protective housing (82) carries the vernier adjustment member (70), the holding magnet armature (88), the grid (87), the locking bracket (89) and the return spring (93). 1 sheet of drawings © 709 758/154 10.