DE1280566B - Weighing device - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY GERMAN WIW PATENTAMT Int. CI .:

EDITORIAL

GOIg

German class: 42 f- 32/02

Number: 1280566

File number: P 12 80 566.2-53 (H 38580)

Filing date: February 4, 1960

Opening day: October 17, 1968

The invention relates to a weighing device, such as is used in particular when prepacking a plurality similar goods is used. Such a weighing device is either only with a printing unit provided that provides receipts on which the weight and type of goods are printed is, or it is designed as a complete price labeling scale that can submit receipts, on which in addition to the net weight and the type of goods also their unit price and the off Net weight and unit price calculated value of the goods is noted.

Because according to the usual regulations when specifying the weight and calculating the price The tare is to be deducted from the goods and this must be deducted when switching to another type of goods or to can change another unit price, care must be taken that in such a transition to attention to a new group of goods of a different type due to its nature and / or its unit price the operator of the weighing device is directed to the fact that possibly a new tare setting of the balance has to be made. It is understood that given this problem the rapid operation of such price labeling devices is of particular importance.

From the German patent specification 938 993 a locking device for prevention is in a balance known of incorrect printing due to incorrect zero taring before each new weighing a new zero taring must be carried out. So the packaging of the goods has to be done first placed on the weighing pan and brought the display device of the balance to the zero position before the net weight can also be applied and weighed. Such a one Device is for a quick prepackaging of larger quantities of goods of the same type and of same unit price unsuitable as it is given within a certain product group the same tare weight appears inexpedient to remove the balance before each new weighing by placing the To bring the tare back to the zero position. In contrast, with the modern fast Operation of such devices is aimed at the new after the completion of a weighing to apply the load to be weighed to the pan in such a way that the balance is deflected as little as possible and the resulting settling time of the weighing pan is shortened.

From British patent specification 808 235 a weighing device is known which adjusting elements Weighing device

Applicant:

The Hobart Manufacturing Company, Troy, Ohio

(V. St. A.)

Representative:

Dr. H. Willrath, patent attorney,

6200 Wiesbaden, Hildastr. 18th

Named as inventor:

Kenneth Clements Allen, Dayton, Ohio (V. St. A.)

Claimed priority:

V. St. v. America 19 February 1959 (794 366)

for the unit price and the type of goods, the overall system being locked if only one of these two setting elements is adjusted. With this arrangement, the system can only do this be unlocked by also adjusting the other, non-actuated element, even if it is in itself was in the right position. If one would use this principle of the inevitable adjustment of one element when adjusting another on the problem the tare setting when changing over to goods of a different type and / or a different unit price should be transferred each time the setting elements for the unit price and / or the Goods type and the tare setting can also be changed, which is an unsatisfactory solution would lead, as it has been found in practical operation that the tare during the transition at a different unit price or a different type of goods in many cases does not change. It would be so it is often necessary to detune the correct tare setting and then this detuning to be reversed, which opens up new possibilities for errors.

The invention is based on the object of creating a tareable weighing device in which by emitting a signal draws the operator's attention to what may be required Adjustment of the taring device is steered without the deletion of this signal a temporary Makes detuning of the taring device necessary.

809 627/1209

The invention is based on a weighing device that can be provided. Also contains · the device with a taring device, which an organ for display and printing device an exchange-adjust the zero position of the balance with tare load ble key 25 or a corresponding one with the having, and setting elements for unit price printing device cooperating part to the and / or type of goods in which to print the goods description on each receipt by adjusting 5, and one or both setting elements create a signal - when changing the key 25 a lever must be used is cash. The task is based on the. Invention at 26 are operated.

such a weighing device is achieved by making the scales ready for operation.

that the signal that can be generated is provided by a tare by setting the main switch 20, an adjustment-independent movement of the adjustment member is used and the appropriate product key 25 can be deleted. The adjusting member has two degrees of freedom with respect to the unit price of the goods at the buttons 21 to 23 on its mobility, from which the required value is set. The balance of the one to terminate the signal when changing then works automatically, in such a way that every time a unit price and / or type of goods is used when a pack is placed on the plate 11, while the other is to readjust the 15 of them Weight weighed, used with the unit price taring device, should this be multiplied and a receipt with the appropriate. '. Information is given.

As already mentioned, the weighing device according to the invention can Advantageously, that - day packaging work is common, a larger group Organ for adjusting the balance at tare load rotatable 20 to handle similar goods and then and axially movable to cancel the signal. to the next, in terms of unit price and type is arranged. This ensures that the same material group is transferred. At one soldurch the transition to a new commodity occurs in a manner to be described below group required actuation of the adjustment a locking and / or warning signal for the for the purpose of deleting the signal, the only rare 25 operator created that required him to pay attention Tare setting is affected. . sam does that with the required re-adjustment Weighing device according to the invention can also develop the unit price and / or the type of goods furthermore, this is also advantageous, a readjustment of the tare may be necessary, the fact that this signal also by switching on According to Fig. 1 and 3 contains the tare adjusting device the weighing device can be created. In this way 30 a manual control button 30 which is on the front namely ensures that the weighing device .. side of the scale housing 10 is arranged. This each time it is started up again with respect to the "button 30 actuates a shaft 31, which is in the upper Tare is properly set. This is insofar as part of a column 33 is screwed in as it is part-Ϋοη Significance, as in the resumption of the wise in F i g. 4 is shown. The inner end of the. Operation of the weighing device with a constant 35 shaft 31 acts on an arm 35, which at 36 Type of goods could result in errors if in the meantime, pivotally mounted at the upper end of the column 33 The buoyancy control device has been adjusted. is. The arm 35 has a shoulder 37 on which The invention is suspended in the following, for example, on a hanger 38, which is the upper Hand of the drawings explained; it shows ends of the counterbalance springs 40 the balance carries. Fig. 1 is a perspective view of a complete price. . Speaking of the consequence that the hanger 30 ange-Fig.2 one of the device of Fig. 1 is raised or lowered to a corresponding deliverable receipt, setting the free-load position of the scales

F i g. 3 achieve a partial section of a tare setting device.

direction according to line 3-3 of FIG. I ₅ 45 The button 30 is not attached to the shaft 31,

Fig. 4 is a partial section of a Tareeinrichtinrich- but has a splinted storage, the one

direction according to line 4-4 of FIG. 3, axial sliding movement between the shaft and the

F i g. Figure 5 shows a view of the tare setting shaft and button. As in particular from FIG. 5 outstanding

their assigned parts, goes, the button 30 is immediately on a ver

F i g. 6 is a circuit diagram of the tare setting device, 50 extension 44 of the shaft 31 attached, the one F i g. 7 has a circuit diagram of a second embodiment hollow inner end part which is telescopic

form of the tare setting device, engages over the outer end of the shaft 31. That

8 and 9 are circuit diagrams of further embodiments, the inner end of the shaft extension 44 is at 45

shape the invention. slotted in order to drive into a radially forward

F i g. 1 shows a complete pricing 55 standing pin 46 engaging on shaft 31

balance, which is attached to a balance 10 with a plate part. Between the shaft extension 44 Receiving the pack to be weighed as well as one and one collar 51 fastened on the shaft 31 Calculating device 12 for determining the unit price, a spring 50 is attached to the wave extension weight product and a display and pressure gauge 44 on the outside of the scale housing

device 13 has, from the receipts 15 (Fig. 2) 60 to press. The outer limit position of the waves is given The information about the elongation is provided by a retractable pin 52 Specifies the type, weight, unit price, and value that will fit into a radial bore in the shaft

any load weighed by the scales included. Extension 44 is inserted and with its inner

The balance 10 has a main switch 20 in the Ren end in a groove 53 running all the way round

Power supply to the various parts of the balance 65 shaft 31 engages. The pin 52 is through a

on, and there are hand control buttons 21, 22 and snap ring 55 held in place.

provided with which the various Deka- As stated, is the normal position of the button

the unit price of the goods to be weighed 30 and the shaft extension 44 under the

5 6

effect of the spring 50, the outer end position. The spring SO is relatively weak, so

Button 30 and the shaft extension 44 can that a correspondingly light pressure on the button

but must be pushed inwardly until the pin 46 produces sufficient axial movement to 30

comes into engagement with the axial slot 45. A contact between the switch trays 61 and

Switch 60 (FIG. 3) is to be called up on the profile piece 33. As soon as this occurs, it closes

brought, and the contact arms 61 and 62 this the relay A and locks itself on the

Switches extend into the path of movement of the buttons 70, and similarly the red one goes

Shaft extension 44 in such a way that this lamp 72 is off and the white lamp 71 is

Arms are out of touch when button 30 is lit. In addition, those in series with the open

is in its normal position, but through the ίο relay C lying rest contacts of relay A, see above

Inward movement of the button against the spring that the relay C can drop out, as for the

50 are brought into contact. Operation of the sampling switch 75 is necessary, and

According to Fig. 6, the two-pole main switches the relay B can close as soon as the relay C

switch 20 the main lines L ₁ and L _{2 of} the exchange drops.

selstromes for the scale motor 65. A schematic 15 It should be emphasized that for closing, des

indicated rectifier 66 leads direct current to the switch 60 only the button 30 is pressed, this.

Operation of the control relays A, B, C and R of the system, however, not necessarily also (for, tare ^

to. The switch 70 is opened each time as long as readjustment has to be rotated. This de-,

one of the buttons 21 to 23 for setting the coupling of that movement of the adjusting element,

price or the arm 26 is operated to the ao which is used to close the switch 60 and the-

Replace goods key 25. those who do the tare-dependent adjustment of the,

The lamp 71 in Fig. 3 and 6 is next to a scale, which is advantageous, because in many cases there is no need for a further lamp 72 behind the reading opening 73, when transitioning to one of the front wall 74 of the scale housing, as is the case in others Type of goods and / or to a different input. 1 and 3 is attached. The lamp 71 25 means to change the tare setting; if there is white light to illuminate the weight dividers, on the contrary, care must be taken, as shown in FIG. 6 is indicated, while that the correct, old adjustment of the scales, the lamp 72 is retained, preferably red or in another, as it is kept by the creation of two falling colors, in order to indicate the existence of an independent degree of freedom of movement, incorrect working condition . This 30 is achieved for the adjusting member.
Lamps are switched so that they alternately When the weighing mechanism reaches its standstill position above the working or closed contacts of a relay A, joins the relay C again, in order _to: are energized, preferably such as to keep balance motor 65, and the Relay B is shown in FIG. 3, at the upper end of the column 33 in FIG. 3, in order to set the operation of the arithmetic device 12 in the vicinity of the switch 60 and to set gear to the control, as is diagrammatically indicated by the latter as an indication on the approximately line 80 is indicated. This cycle can be switched on again as required without further setting, as long as the unit price and the goods are activated

If in normal operation the scales with the remain the same. Each new price labeling process 40 shown in part in FIG. 6 is then closed by placing the load on the main switch 20, the weighing pan closes, while relay A immediately thereafter the relay C remains energized via the idle state.

clocks of relay A or when the scales are at a standstill scans. As shown in Fig. 6, a new setting of buttons 21-23 prior to sensing switch 75 includes taking a switch arm 76 with it, and while this is being done, the one ground contact 77, which closes both relays C and R switches 70, is opened for a sufficient period of time , when the balance is in equilibrium, to let relay A drop out. As soon as this is located. The switch arm 76 moves after 50 takes place, set the same working conditions below to drop these two relays as when the main switch is inserted, by keeping the relay C closed when the balance is under load from its zero - namely the relay C, the Position moves and moves up to only go out white lamp 71 and the red lamp 72 to open relay C when the scale lights up. This gives the operator zero moves. However, since the relay C is closed 55 an indication of a possibly required, its break contacts are opened in the tare-related readjustment of the zero position of the power supply line for the scale motor 65, since the weighing process is only resumed, and the scale cannot move move, even men can be if the switch 60 would be actuated by the when the sampling switch 65 was closed by resting a button 30 of the tare adjustment member wor-load on the weighing pan. An additional 60 den.

the red lamp 72 is illuminated to control the switch 60 and its associated relay The operator indicates that he can use the scales at various points before actuating the scales of the tare adjustment member 30 be seen unlocking. They always work together to that effect. men, the entire workflow of the balance

To prepare the scale for operation, it is 65 block when there is a change in the type of goods

therefore necessary for the operator to enter the tare or unit price that it required

To operate the setting device so that the switch makes a new tare setting into consideration

60 is closed, and pull for easy actuation. Thus, FIG. 7 part of control circuits

6, which contain a modified arrangement insofar as it relates to the arrangement of the blocking Ktngsköntakte of the relay A. Presented "How the rest contact of the relay A in series with the relay C is instead turned on a pair of Arbeitskonfäkten of the relay A in the line 80 ', which transmits the start signal to the computing device 12th when it is intended in such a switching order, to operate the scales after changing the price or the goods key without activating the tare setting and in spite of the signal given by the red lamp 72, the scales will work until the weighing mechanism is in equilibrium, but when the relay B drops out as a result of the relay C being closed again, the normally open contacts A in the line 80 ' remain open, so that the start signal cannot reach the computing device.

F i g. Fig. 8 shows an embodiment of the invention which is also applicable to a pricing machine in which a lamp 100 is provided for illuminating the table of weights and values. The function of the switch 101 corresponds to the switch 70 and, depending on the structure of the respective balance, can be attached in such a way that it is actuated whenever the free-per-pound setting is changed. The relay ^ and the switch 60 correspond to the same parts as already described in connection with FIGS. 1 to 7, and the lamp 102 represents a red light with the same function as the lamp 72.

If in a switching arrangement according to FIG. 8 the main switch 105 is turned on, the red lamp 102 lights up and preparing the scale for operation therefore requires the operation of the tare setting to temporarily close the switch 60. The same conditions occur as a result of the simultaneous operation of the switch 101 when a change is made in the price setting. The switching arrangement of FIG. 8 is particularly applicable to an optical balance in which a failure of the lighting in the form of the lamp 100 means a warning signal for the operator who draws his attention to the tare setting, since the lamp 100 can only be activated by actuating the Button 30 can be turned on again.

9 shows a further partial circuit diagram, according to which the relay A is caused to control a mechanical stop device which prevents the actuation of the scale, and the red lamp 110 and the switch 111 according to FIG. 9 corresponds to lamp 72 and switch 70 of FIG. 6. Part of the scale mechanism is shown diagrammatically in FIG. 9 by a portion of lever 113 which is normally prevented from moving downward in a weighing operation by the interposition of a mechanical support member. This mechanical support member includes a roller 115 which is carried on an arm 116 which is pivotably mounted at 117 on the main frame and is pressed by a spring 118 into its operating position. In this arrangement the relay A controls a magnet winding 120, the core of which is connected at 121 to the arm 116 in such a way that when the relay A is energized, the magnet winding 120 moves the support arm against the action of the spring 118 into the position shown in FIG F i g. 9 pulls the position shown in dashed lines in order to allow a free weighing movement of the arm 113 .

Claims (3)

Patent claims: 1. Weighing device with a taring device, which is an organ for adjusting the zero position the balance has at tare load, and setting elements for unit price and / or Type of goods for which a signal can be generated by adjusting one or both setting elements is characterized in that the signal is generated by a movement of the adjusting member (30, 44) can be deleted. 2. Weighing device according to claim 1, characterized in that the member (30, 44) for Adjustment of the scales rotatable with tare load and axially movable to cancel the signal is. 3. Weighing device according to claim 1 and 2, characterized in that the signal is also can be created by switching on the weighing device. Considered publications:
German Patent Nos. 512473, 938 993;
British Patent No. 808 235. 1 sheet of drawings 809 627/1209 10.68 © Bundesdruckerei Berlin