DE1959627B2 - Electromagnetic counter for accumulative counting operations - Google Patents

Description

30th

The invention relates to an electromagnetic counter for accumulative ZähU; perationen, in which for the zero setting with the heart curves attached to the side of the numeric rollers, the zero setting fingers of one by a push button and / or the armature of an electromagnet against the force of a return spring pivotable zero setting lever come into operative connection, with which a pivotably arranged Shift drive bridge is coupled.

In a known counter of this type, the zeroing lever and the switching drive bridge are on one common shaft pivotably arranged. A clamped against the housing engages the zero setting lever Return spring, the effect of which is supported by a between a slide and the pressure spring supporting the push button. This slide, which can be moved by the push button, controls for the zero position, first the disengagement of the drive pinions supported by the shift mechanism bridge by pivoting the gearshift bridge against the gearshift bridge and the one with the number rollers connected gears in drive connection holding spring, then the pivoting of the zeroing lever against the force of its return spring and its subsequent locking · in the zero position. After the zero position, the slide controls this by overcoming the restoring force of the compression spring Engagement of the drive pinion and finally after a release of the actuation which then has to take place the push button swivels out the zero lever.

There are also arrangements known for such counters in which the zero lever directly the gearshift drive bridge is coupled and by its return spring against a formed on this Abutment is pressed.

The known arrangements are disadvantageous in that in the accumulative tender operation of the gear wheels connected to the number rollers are acted on by a recoil force acting on the drive pinions of the formwork bridge, which take on a value can, which is a secure drive connection between the drive pinions and the number rollers connected gears is no longer guaranteed if the springs are not appropriately designed are provided to ensure this drive connection. By now using it for a counter Electromagnetic zero position of the number rollers is desirable to provide a small size of the electromagnet for the excavation the switching drive bridge when zeroing the number rollers to keep the force required small, means that the gears connected to the digit rollers in the accumulative counting operation outgoing recoil force acting on the drive pinion with as weak a force as possible Spring should be caught, but at the same time a secure drive connection between the drive pinions and those connected to the number rollers Has to ensure gears. The known arrangements only imperfectly master these conditions, which is why they often get wrong counts.

The invention is accordingly based on the object of providing an electromagnetic counter of the initially mentioned to create the type mentioned, which, taking into account in particular the circumstances at an electromagnetic zero position a secure drive connection between the drive pinions of the Switching mechanism bridge and the gears connected to the number rollers in the accumulative counting operation guaranteed and which for the lifting of the gearshift bridge when zeroing the Numeral rollers only require less force.

This object is achieved according to an invention in that the zero setting lever and the gear shift bridge are articulated to each other via a handlebar, the articulated connections with the Zero setting lever and with the formwork bridge when the zero setting lever is disengaged with its stationary The pivot axis lie essentially in a common plane.

Such a design of the counter allows the spring, which the drive pinion and with the Gear wheels connected to numerical rollers are kept in drive connection, weakly interpreted, without therefore also to endanger this drive connection in the event of a rapid accumulative counting operation.

In the embodiment of the invention, as indicated in claim 2, the advantage is achieved that for the resetting of the zero lever and an armature part only requires a spring, which is on a stationary bearing shaft is mounted, so that the counter can be built simpler and smaller.

The invention is described below using an exemplary embodiment shown in the drawing explained in more detail. It shows

F i g. 1 shows the individual parts of the counter in a perspective view and exploded view removed housing,

F i g. 2 a plan view of the unit of the counter consisting of number rollers and drive pinions,

Fig. 3 A to 3F the counter in its entirety in different views,

3 4

4 in perspective view and partially expanded gearwheels 80 to 85, each with eight

Different depiction of the nulisteilein direction teeth, each of which is four teeth higher

of the counter, are than the four remaining teeth to which they

F i g. 5 a detail lie alternately on an enlarged scale. In the case of accumulative counting

of the Nullsiellhebels in perspective view, 5 tion drives the gear 42 of the drive wheel

Fig. 6 is a schematic view of the counter of this then meshing gear 74 of the

to illustrate the relationships at the counting first drive scratch 68, its second gear

operation, 80 the gear SO which is in mesh with this

F i g. 7 and 8 are schematic views of the counter that drives the first digit roller 44. Their second

Work to illustrate the relationships at io gear 56 in turn drives the first intermittently

the zero position, gear 75 of the second drive pinion 69, whose

Fig. 9A and 9B Schemad "rstel! Tingen for Verat- second gear 81 again with the first tooth

Illustrative of the operation of the counter and wheel 63 of the second digit roller 51 is in engagement.

9C shows a diagram corresponding to FIG. 9A. In this way, the drive magnet

Representation to illustrate the operation js 13 an accumulative counting operation is carried out

of a known counter. will.

As shown in FIGS. 1 to 5 of the drawing with reference in particular to the F i g. 4 and 5 goes, are on the transverse web of an essentially should now be the Nu'.lstelieinrichtung of the counter U-shaped mounting frame 10 a drive magnet will be described in more detail. The zero position of Zif-13 and a zero setting magnet 14 by means of screws 11 20 rollers 7 can either manually by means of a definable. Each magnet 13, 14 has an L-shaped push button 6 or electromagnetically by means of the Yoke 33, a core 34 in which the associated zero setting magnets 14 are effected, its anchor screw 11 is screwed in, a bobbin part 18 in a recess 97 of the zero lever 24 35 with winding spool 36 and a T-shaped leaf spring borders. The push-button 6 is in the same place as the button 15 for movably holding an associated attachment end facing away from the end with a bore 86 core part 17 or 18 provided. The shaft 43, on which the number scrolls

The armature part 17 of the drive magnet 13 summarizes in the len 7 store, grasps the push button 6 in one

mounted state in the groove 38 of an elongated hole 87. The zero setting lever 24 has in the area

Shaft 37 mounted armature part 19, which with between two end bearing arms 90 and 95, the

two drive pawls 20 and 20 'is provided, each with a bore 93 and 96 for receiving the 30

the implementation of an accumulative Zänlopera- bearing shaft 94 are provided, a number of each

tion with the star wheel 41 of a drive wheel 21 in zero setting fingers 88 ending in a hook 89,

Are brought into engagement. Like all the other Weller. which for the zero position with the heart curves 62

in bores 30 of the legs 29, 29 'of the frame to 67 of the number rollers 7 come into operative connection.

10 fixed bearing shaft 37 for the anchor part 19 is 35. The bearing arm 93 of the zero setting lever 24 has

of a return spring 26, which between its free end a hinge pin 91 on which

this anchor part 19 and a link 98 is articulated by means of a shaft 94, via which the NuIl-

pivotably mounted zero lever 24 is clamped. adjusting lever 24 coupled to the gear shift bridge 23

The ends of the spring 26 engage behind a front is. The push button 6 is on the hinge pin 91

jump 39 mounted on the anchor part 19 and a pin 40 on 40 via its bore 86. The free end of the

the zero setting frame 24. Link 98 has an elongated hole 100 into which a

The drive wheel 21, mounted on the shaft 43, surrounds the hinge pin 101 of the gearshift bridge 23, sits next to the aforementioned star wheel 41, with which hinge pin 101 sits at the free end of the brazen pawls 20 and 20 'of the armature part 19 the U-shaped gearshift bridge 23 alternately come into engagement, a gear 42. On 45 half of the bearing shaft 105, which supports the two legs of its shaft 43 are several number rollers, the gearshift bridge in bores 103 through which up to the F i g. 2 in their entirety with 7 is a spiral spring 106, one end 107 of which are marked on the. In Fig. 2, the numeric rollers 7 with gearshift drive bridge 23 and their other end 108 are denoted at 44 to 49, and from this illustration a stopper 27 for the drive pinion 22 is hooked, and that on one side of this numeral is 50, the bearing shaft 105 comprises the gearshift bridge. remote rolling each a gear 50 to 55 each with the stopper 27 is fixed to the mounting frame 10, twenty teeth and on the other side each so that the gearshift bridge 23 via the spring 106 a gear 56 to 61 each with only two teeth in the direction of in F i g. 4 indicated arrow A is provided. A translation is biased above this.

ratio of 1:10 are of a righthand digit 55 In the illustrations of Figures 3A to 3F roll on a left adjacent thereto digits roll ER still ^rr:. t 8 and 9, the terminals for the Anzielt. Each of the number rollers 7 is assigned a heart curve drive magnet 13 or the zero setting magnet 14 -62 to 67. draws. Furthermore, there are 12 projections on the

A number of two legs 29, 29 'of the mounting frame 10 corresponding to the number rollers 7

Drive pinions, which except for the F i g. 2 in their 60 draws, through which this his fixation to the

Entirety with 22 and the in F i g. 2 with 68 to 73 housing not shown in the drawing finds,

are indicated, is mounted on a shaft 102, which are also shown in FIG. 1 still throughin at 32 Bores 104 of a gearshift bridge 23 fixed entry bores for the fastening screws 11 of the is. The shift drive bridge 23 is in turn designated on a magnet 13, 14 and with 31 and 31 'end

Shaft 105 of the mounting frame 10 pivotably mounted 65-sided recesses on the legs 29, 29 'of the

gert. Each of the drive pinions 22 consists of a frame 10, which fixes a frame part

first gear 74 to 79 each with eight teeth 109 in cooperation with projections 111 and

of substantially the same height and a two recesses 112 serve the same. The frame part

5 ^ 6

109 has a passage opening 113 for the hebeis 24 to a torque M ₂ , which follows

Push button 6 and a lens 110, which satisfies the assembled equation:

State in front of the number rollers 7.

To perform an accumulative counting opcra- M., = ■ F ₂ · O ₁ m., (2)

tion, the drive magnet 13 is excited so that the 5 ,,,. ,,

Anchor part 17 tightened and above it the anchor part 19 * T ^ üVf ^fu ' ^d '? V ™? * ™ * ™ *} £ the return

in the direction of the arrow D f ' ^lic f ^r drawn in in FIG. 6. ² .J the following equation for this force

is pivoted about its bearing shaft 37. Thereby '2 ^adjustable :

comes one of its pawls 20, 20 ' into engagement ρ _

with your star wheel 41 of the drive wheel 21, whose 10 rotation in the same direction by the gear

42 is in the manner described above to the ^{light of} the above equations (1) to (3)

first digit roller 44 and, corresponding to the number, can thus be deduced that the torque M _{2 is} smaller

of the pulses to be paid on the further digits roi, if the distance between the pivot axis

len is delivered. i ~ 94 of the zero lever 24 and the action line

To reset either the Nullstellmaanct "The on Antricbsritzel 14 or the push button 6 force F., is reduced. Actuated. In B" has the switching pinion bridge ctä- 23 acting repulsive force N account the latter of g in the direction in Fi. 8 einge- ^{k £ ll1tl} therefore be considerably high, before it a recorded arrow E, the zero setting finger contact 88. 89 pivoting the zero setting lever 24 comes, and the Nullstellhcbels 24 in operative connection with the 20, the distance between the pivot axis of the NUII-Herzkurvcn 62 to 67 of the number wheels 7, by adjusting lever 24 and the line of action of the force F., the garbage adjusting lever 24 around its Lagerwellc 94 in Rieh- zero, then the drive connection between the direction of arrow B is pivoted. At the same time the drive pinions and the number rollers are used by the link 98 in the direction of the in FIG. 7 integrated gears are practically never canceled, drawn arrow C, with the result that 55 ^{so that ss is} then possible. the biasing force of the gear shift bridge 23 in the direction of the arrow Λ of the return spring 26 to select extremely small. FIG. 9B, which is pivoted about its bearing shaft 105 according to FIG. 22 that is out of engagement with the position of the illustration according to FIG. If the relative positions of the gearshift bridge 23, the handlebar 98 after the zero position has taken place, the actuating force is set to 30 " ^{r |} d zero setting lever 24 back to its number rolls.

gear position back, and on the other hand also to Fig. 9C on the other hand of the following switching pinion bridge 23 in its initial days back ratios at a counter of prior art applied assumed "35 füliningsform, wherein the Schalttrieb- ^C For the mutual coupling of the Nullstcll · bridge * »'Directly coupled with the zero setting lever 24 and the gearshift bridge 23 via the ^ - the in the disengaged position of its zero setting handlebar98 is now with reference to Fig. 9A a finger 88' on a day crm, the gearshift bridge made such an order Here, too, with N the zero setting lever 24, which is engaged by the fertilizers 91 and 10f of the handlebar 98 with the zero gears of the number rollers on the drive sprocket and the gearshift bridge 23 when the gearshift bridge is out, also includes the zero setting lever 24 the fixed lines, then the pivot axis 94 can for m on the abutment. substantially in e In a common applied force F, the following equation 'lie on the same level. This arrangement creates counter- are:
via the schematically illustrated in Fig.9C arrange- 45 O ~ O 'voltage in a prior art counter comparative F. ~ - -' N. (4) wise embodiment the following advantageous ratios: ".

If the recoil force is set with N , the selection can also be made on the zero setting lever

During the accumulative counting operation of the applied torque M _{1, the} following equation is established

individual gears of the number rollers on the ^{5t: ellt} are:

Shaft 102 mounted drive pinion of the switching drive m \ - = F ₁ · O ₁ Jn ₁ - N _{· U 1} Ό _α . (5) bridge 23 acts, then this recoil force N

can be set in a ratio to a force F., ^Tn dem from the above equation (5)

whose line of action is determined by the connection 55 that the recoil force N unmiüelba

straight line between the elongated hole 100 of the handlebar ^i3uf the torque M _{1 has an} effect ^ the Voi

98 and the axis of the hinge pin 91, via which the tension force P of the return spring 26 following slide

the handlebar 98 with the zero lever 24 articulated ^{i: now} g fulfill:

connected is. The force F., fulfills the following, from ~ ΨΓΎ)

F i g. 9 A derivable equation: 60 p ^ · F ₁ = - ■ N. (6) S ₁ U, O ₁ O ₃

ρ, = Q? ^ ' . , γ η } If the above equation (6) does not satisfy

'Q " _Hi then this would result in the instinctual connection

¹ ~ 85! Wipe the drive sprockets and the one with the digits

roll connected gears is released, un

This force F "now gives the zero setting fingers 88 of the iwar even when the recoil force N m on the shaft 94 ^ pivotably mounted zero setting is set to a negligibly small value

For this purpose 2 sheets of drawings

Claims (2)

I 959 claims: 1. Electromagnetic counter for accumulative counting operations, in which for zeroing with heart curves attached to the side of the numeric rollers, the zero setting fingers one through a push button and / or the armature of an electromagnet against the force of a return spring pivotable zero setting lever in operative ι ο connect with which one pivotable arranged switching drive bridge is coupled, characterized in that the zero setting lever (24) and the gearshift bridge (23) are articulated to one another via a link (98) are, its articulated connections (91, 101) with the zero lever (24) and with the gearshift bridge (23) with the zero setting lever (24) disengaged with its crts-fixed pivot axis (94) essentially lie in a common plane. 2. Electromagnetic counter according to claim 1, characterized in that the return spring (26) is mounted on the stationary bearing shaft (37) e'nes armature part (19) and includes this and is braced with the zero setting lever (24) on the one hand and the armature part (19) on the other hand.