DE2751620A1 - PORTABLE HAND DEVICE FOR LENGTH MEASUREMENT - Google Patents

Description

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10217 / H / Elf

Sanko Sewing Machine Co., Ltd.

No.96, Mizubashiri, EIigash iosaka-sh i, Osaku-fu (Japan)

Portable hand-held device for length measurement

The invention relates to a portable hand-held device for measuring the length of a material, with a device that acts directly on the material Measuring part.

Common handheld or pocket devices for length measurement have a Band made of metal L, fabric or plastic, printed on the scale or embossed, and which is applied directly to the material whose length is to be measured. With these devices the tape must be held precisely and firmly to the material to be measured, and when reading a numerical value at the measuring point of the Even a slight shift in materials would lead to an inaccurate measurement result. In addition, the scales of the The tape becomes indistinct over time with use, winding, or other reasons. There is a need for a device that does not have these disadvantages.

It is therefore the task of specifying a simply constructed and easy-to-use device that can take precise measurements without any effort and (thanks to the digital display) also avoids reading errors.

80982 1/095, _0R1G1NAL , NSPECTED

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This TaskG is characterized by the characteristic features of the Claims resolved.

It deals; So it is a portable hand-held device for length measurement, with which the measurement result is visibly displayed and accurate measurement results in a simple manner by means of a pulse generator guaranteed.

A preferred embodiment is shown in the drawing. Show it:

Figure 1 shows the hand-held device in use, and

FIG. 2 is a block diagram to explain the internal structure of the device.

The device essentially consists of a measuring part, which is brought onto a material to be measured and precisely measures its length, a pulse generator that generates pulses in accordance with the measuring part, a reversible one, that is, forwards and backwards counting counter, which counts the generated pulses, and a digital display device, which shows the output signal of the reversible Counter is supplied.

Figure 1 shows a measuring body 1, on which a rotatable to the measuring material 3 attacking measuring part 2, such as a roller is attached.

Figure 2 is a block diagram of a pulse generator incorporating a pulse generator Arrangement which is located within the measuring body 1. The pulse generator 4 generates when the measuring part 2 rotates one pulse each. A reversible counter 5 operates as a function of the pulse generator 4. The counter 5 in turn controls a digital display device 6.

The pulse generator 4 generates pulses in a constant time interval only as a function of the movement distance of the measuring part 2, regardless of its speed in the forward or reverse direction.

809821/0951:. ;. ORIGINAL INSPECTED

The reversible counter 5 carries out an exact addition or subtraction the pulses from the pulse generator 4. The output signal of the counter 5 operates the digital display device 6.

Since there is always a certain relationship between the number of pulses of the pulse generator 4 and the measured length of the material 3, the display device immediately shows the length of material 3.

In FIG. 2, 7 denotes a portable computer which is built into the measuring body 1 in the illustrated embodiment is. The computer 7 has a key or keyboard 8 and a computing circuit 9.

If in the embodiment described here, the measuring part is a roller or an impeller, you just have to let it roll over the part of the material to be measured. Because of the digital The measurement result cannot be displayed incorrectly. This impeller can also be used as a "spatula" to cut through Lines are used, whereby an electrical circuit is interrupted. Other possible uses of the device result from the associated computer.

The device shown in Figure 1 is very handy. During the measuring part 2 or the impeller at one end of the elongated Measuring part 1 is attached, is located on its side the digital display device 6 with associated computer, its electrical part as well as the pulse generator and the Pulse counter is built into the interior of the measuring body.

With key 8 the measured value given by the counter can be taken directly entered into the calculator.

809821/095 1

Claims (3)

Claims 1 . ) '' Portable hand-held device for measuring the length of a material, with a measuring part which acts directly on the material, characterized in that the respective length of the material is calculated by an electrical device and displayed digitally. 2.) Device according to claim!, Characterized by a measuring part (2) in the form of one which can be brought into contact with the material and follows it in the forward or backward direction Rolle, a pulse generator (4) that runs at a constant time interval synchronous with the rotational movement of the roller regardless of the rotational speed in the forward or reverse direction Generates pulses and a signal corresponding to the extent of the rotary movement of the roll rolling on the material generated, a reversible counter (5) dependent on the pulses of the pulse generator and a digital display device (6), which is controlled by a signal from the counter (5). 3.) Device according to claim 1 or 2, characterized in that that the measuring part (2), a pulse generator (4) and a reversible counter (5) are connected to a pocket calculator (7) are, with which by means of a key or keyboard (8) of the computer the displayed by the digital display device (6) measured length value is calculable. 809821/0951