Abstract: In a load measuring mechanism capable of easily adjusting a positional deviation error by means of a positional deviation error adjusting portion, a load receiving portion 3 is connected to a substrate portion 2 by means of parallel link portions 4a, 4b via flexures 5a-5d, a finely deformable portion 2a is provided at an upper portion of the substrate portion 2, and the flexure 5a is coupled with the deformable portion 2a. Positional deviation error adjusting portions 10 are provided on both sides of the substrate portion 2, a base portion 12 of the positional deviation error adjusting portion 10 is connected to a first lever 13 via a fulcrum 15, and the first lever 13 is coupled with a second lever 14 via a flexible portion 16. When a distance between the base portion 12 and the first lever 13 is increased by rotating an adjusting bolt 11, this displacement is transferred to an end 14a of the second lever 14.

Abstract: It is possible to rapidly and accurately reach a target value while putting a material to be weighed. In step S1, a target value is set. Putting in of a material is started. Control is passed to step S2 and step S3 and a numerical value A at the digit of thousand is displayed. After the putting in is continued, in step S5, S-W<1000 is obtained. Control is passed to step 56 and step S7, where in addition to the numerical value A of the digit of thousand, a numerical value B of the digit of hundred is also displayed while ignoring the numeric values C and D of the digits of ten and one. In step S8,S-W<100 is obtained. Control is passed to step S9 and step S10, where in addition to the numerical values A of the digit of thousand and the numerical value B of the digit of hundred, the numerical value C of the digit of ten is also displayed while ignoring the value D of the digit of one.

Abstract: In a load measuring mechanism capable of easily adjusting a positional deviation error by means of a positional deviation error adjusting portion, a load receiving portion 3 is connected to a substrate portion 2 by means of parallel link portions 4a, 4b via flexures 5a-5d, a finely deformable portion 2a is provided at an upper portion of the substrate portion 2, and the flexure 5a is coupled with the deformable portion 2a. Positional deviation error adjusting portions 10 are provided on both sides of the substrate portion 2, a base portion 12 of the positional deviation error adjusting portion 10 is connected to a first lever 13 via a fulcrum 15, and the first lever 13 is coupled with a second lever 14 via a flexible portion 16. When a distance between the base portion 12 and the first lever 13 is increased by rotating an adjusting bolt 11, this displacement is transferred to an end 14a of the second lever 14.

Abstract: An apparatus for measuring weight of a substance placed within a substrate space which is subjected to sever conditions, including a measuring unit having a transducer and placed within a measuring space, a partition member provided between the measuring space and the substance space and having hole through which said measuring space is communicated with said substance space, a rod-like member extending through said hole formed in the partition member such that a first end of said force transferring member situates within said substance space and a second end of said force transferring member situates within said measuring space, a parallel link mechanism arranged within the measuring space and connected with the rod-like member, a magnetic fluid provided in a space within said hole such that said substance space and measuring space is isolated from each other in a liquid tight manner by means of said magnetic fluid, and a magnetic force generating unit producing a magnetic force such that said magnetic fluid

Abstract: An apparatus for measuring weights of articles having different shapes and weights successively transported on a conveyer including first and second weighing conveyers 13 and 14 having load cells 23 and 24 to produce weight signals and photo-sensors 20, 21 and 22 arranged at inlets and outlets of the weighing conveyers 13 and 14 for detecting passage of the articles to produce article detection signals. In a calculating circuit 25, a weigh of an article is calculated by processing weight signals supplied from the first and second weighing conveyers 13 and 14 in accordance with a measuring sequence which is selected from a plurality of measuring sequences in accordance with the article detection signals supplied from the photo-sensors 20, 21 and 22.

Abstract: An apparatus for measuring a length of an article which is transported by a conveyor including first and second light sensors arranged along the conveyor being separated from each other by a reference distance which is similar to a minimum length or an average length of the articles, a rotary encoder secured to a roller of the conveyor ant at least one counter for counting output pulses from the rotary encoder, the counting operation of the counter being controlled by output signals from the first and second light sensors. A length of the article is calculated as a sum of the reference length and a length derived from at least one count value of the counter. The reference length can be predetermined precisely, so that the length of the article can be measured very accurately.

Abstract: A load detecting mechanism is provided comprisinga vertical link extending in the vertical direction in which a load to be detected is exerted;first and second leaf spring members each having a first end portion connected to an upper end of the vertical link and extending horizontally in different first and second directions, respectively;third and fourth leaf spring members each having a first end portion connected to a lower end of the vertical link and extending horizontally and parallel to said first and second directions, respectively;a rigid block member having at least first, second and third end portions extending vertically and formed integrally with each other, the first end portion of said rigid block member being adjacent the vertical link, second end portions of the first and third leaf spring members being secured to the upper and lower ends of the second end portion of said rigid block member, respectively, to form a first parllelogram link mechanism, and second end portions of the second and f

Abstract: An apparatus for measuring a weight including a tuning fork vibrator to produce an oscillation signal having a frequency determined in accordance with a weight applied to the vibrator, a circuit for detecting an abnormal increase in an amplitude of the oscillation signal due to disturbing vibration to produce an abnormal signal, a frequency counter for counting the number of waves of the oscillation signal except for a period during which the abnormal signal is generated and a data processor for resetting the frequency counter each time the frequency counter has counted waves of the oscillation signal for a predetermined period and calculating a measured weight from a count value of the frequency counter.

Abstract: A mechanism for converting a weight into a frequency by means of a tuning fork vibrator having a pair of elongated plate-like vibrating strips extending in parallel with each other, a lever unit with a power pivot, fulcrum pivot and a load pivot, and a base portion, both ends of the tuning fork vibrator being coupled with the power pivot of the lever unit and the base portion, respectively by means of thin plate-like members. The weight to be converted is applied to the load pivot of the lever unit and is transferred to the tuning fork vibrator by means of the lever unit. All the parts of the mechanism are formed integrally from a single plate.

Abstract: An apparatus for counting the number of articles of the same kind comprising a measuring chute rotatably journalled to a horizontal shaft and being arranged in an inclined manner, a parts-feeder for supplying the articles onto the measuring chute substantially at a point of the horizontal shaft, a load detector for detecting torque generated on the horizontal shaft when the articles supplied on the measuring chute are discharged from the chute at its lower end remote from the horizontal shaft to produce a torque output and a measuring circuit including a circuit for detecting peaks in the torque output to produce pulses and a counter for counting the number of peaks.

Abstract: A method for counting the number of articles or goods of the same kind using a weighing machine which comprises a step of measuring an average or mean weight of sample articles, a step of measuring a weight of all articles to be counted and a step of calculating the number of the all articles by dividing the measured weight by the mean weight. Said step of measuring the mean weight includes a step of measuring a temporary mean weight a.sub.1 of a known small number of articles P.sub.1, a step of adding any unknown number of articles P.sub.2, a step of measuring a weight W.sub.1 of these articles P.sub.1 plus P.sub.2, a step of calculating the number N.sub.1 of the articles by rounding off a quotient obtained by dividing the weight W.sub.1 by the temporary mean weight a.sub.1 and a step of calculating a standard mean weight a.sub.2 by dividing said measured weight W.sub.1 by said calculated number N.sub.1.