JPH01500373A - Linear measuring device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] Straight side device The present invention is useful for measuring the dimensions of rooms, buildings, etc. or for measuring the distance traveled on a surface. This relates to a linear measurement device used in "Straight line" used here The term refers to a path that is not necessarily a straight line or a distance on a surface that is not necessarily a plane. shall also mean distance measurement.

The so-called "tape measure" is well known, but it has a scale (for example, centimeters). A fixed length of tape marked (in inches) is rolled onto a rotating reel with a rewind function. It is wrapped in These tape measures have some limitations in use9, for example, There is a limit to the length of tape that can be wrapped around the tape measure, and it is difficult to read the scale on the tape measure in a dark place. In addition, the scale cannot be read by visually impaired people, and the tape may become dirty or damaged. There is also a possibility that

In addition, a wheel is run on a measurement plane, and the movement of the wheel is used to display a scale. Wheel-type measuring devices have also been proposed that operate indicators. However, these Wheel-type measuring devices can only be used for certain specific applications, and there are some difficulties in using them. It is accompanied by points.

Therefore, the present invention overcomes to some extent these problems associated with conventional measuring instruments. The aim is to provide an improved measuring instrument.

Briefly, the present invention includes one holder, one movable measuring element, and the above-mentioned measuring device. One sensor that detects the moving distance of a fixed pixel, one electric power circuit coupled to the above sensor. pulse generator, one electronic digital counter connected to the above pulse generator or computing circuitry, and one output connected to a visible, audible, or recording output. The present invention relates to a linear measuring device configured by a circuit.

According to a preferred embodiment of the invention, in the sensing means there is a A pulse generator that senses and generates pulses, and a pulse generator connected to the above pulse generator. One electronic counter or calculation circuit is incorporated. Embodiments of the invention Some of the sensing means used are designed to interlock with the measuring element and allow the measuring element to move in a straight line. A rotating element or set of rotating elements designed to rotate in unison and generate pulses accordingly. It is included.

Thus, in most cases the measuring element is elongated and has physical, mechanical, or magnetic properties. Or, it is equipped with multiple optical linear measurement points, and the detection means detects the above measurement points. It has a built-in detector.

According to another preferred embodiment of the invention, the measuring element is uniform depending on the measuring application. A device that can only move in one direction and returns the measuring element to its starting position in the opposite direction. It has the means of

Some embodiments of the invention may use a telescoping rigid member as the measuring element. or which is particularly suitable for measuring small dimensions.Other embodiments of the invention In this case, the measuring element is a thin long flexible wire, tape or similar material. A coiled or cylindrical product is used. For convenience, thin thread-like can also be used. These thread-like materials are the most economical and can be applied to cylindrical parts of a given size. It is the one that can be involved for the longest time.

If possible, the device of the present invention may also incorporate a spring-loaded, electric-powered or manual rewinding mechanism. It is also good to roll it into a coil or cylinder.

In place of or in addition to the measuring element described above, at least a portion of the outer periphery is exposed. It is also possible to use something like a direct rotation meter with a rotor. To be so can be used to measure undulating or non-linear surfaces and dimensions, and can also be used to measure, for example, cylindrical The inner circumference of objects can also be measured.

Additionally, an audible signal generator is included that conveys audible information about the distance traveled by the measuring element. If incorporated into the invented measuring device, it can be used for many purposes, such as being usable by visually impaired people. Also available. Additionally, different units from British Weights and Measures, Metric and other units Means for converting the representation to can also be incorporated into the device of the invention.

It is also possible to incorporate means for connecting to an external remote signal generator.

Furthermore, the device of the present invention can be combined with a height measurement system based on the "vertical 6 arc minutes" principle. You can also combine them. Then you can use the vertical angle measuring instrument as well as the tangent of the measured angle. The present invention uses a calculator programmed to combine the sensed linear measurements with It can be incorporated into a device to measure the vertical height of an object. Get vertical data too Examples include bubble tubes and pendulums.

Preferably, a means of summing the distance traveled by the measuring element in one direction as well as the measured value of the movement in the reverse direction. Preferably, means for subtracting . In addition, detection dimension data or and/or zero point setting and/or adjustment. Wear.

The apparatus according to a particularly preferred embodiment of the invention is a power drill, saw or electric drill. has a means of attaching the holder to a tool such as a forming tool, and It is now possible to measure the depth of cut made by a measuring element or tool.

The invention can be implemented in many different ways, and some preferred embodiments are given below as examples. Embodiments will be described with reference to the accompanying drawings.

Figure 1 of the attached drawings shows the main machinery and electricity of the first embodiment (Embodiment 1) according to the present invention. It is a schematic diagram showing parts.

FIG. 2 is an external view of the above embodiment.

FIG. 2A is an enlarged end view showing the clip at the tip of the measurement line.

Figure 3 is a block circuit diagram showing the main electrical components of another embodiment (Embodiment 2). be.

FIG. 4 is an elevational sectional view showing the main mechanical parts of the third embodiment (Embodiment 3) of the present invention. Ru.

FIG. 5 is an external view of a fourth embodiment (Embodiment 4) showing an auxiliary measuring wheel.

FIG. 6 is a perspective view showing the modified clip at the tip of the measurement line.

FIG. 7 shows the main electrical and mechanical components of a fifth embodiment (Embodiment 5) according to the present invention. FIG. 2 is a block circuit diagram.

Referring first to FIG. 1, the measuring device of this embodiment is equipped with an automatic rewinding spring 12. One flexible wire 10 is wound around the obtained one cylindrical part (drum) 11, and its free end is One clip or other attachment 13 is attached to the. Kono Tawa The wire should be made of a suitable non-stretchable, corrosion-resistant material such as nylon, steel or synthetic plastic. It is molded from flexible material.

The flexible wire used in this example should preferably be a single filament with a circular cross section and be wound. One friction pulley or capstan 15 has a deflection line that is firmly tightened by friction. It has a shallow outer structure so that it can be tightened. This capstan has A large number of teeth or indentations closely spaced at intervals corresponding to the minimum scale required for a fixed line. For example, if the required minimum scale is 0.5ms, the phase difference is Rotate the axis of rotation so that a circumference measurement of 0.5H is obtained at the circumference of the groove between adjacent teeth. Place the teeth at an appropriate angle measured from 17.

In addition, the first detector built into this device is activated as the capstan rotates. 1 m long, which is arranged so as to be able to interlock with the teeth 16 and influence one sensor 24. It consists of 23 feelers. The sensor 24 is, for example, a piezoelectric crystal or a microswitch. The output from this sensor is passed through line 25 to the digital counter described below. sent to the circuit. The device also incorporates another direction sensor. . This sensor consists of another finger-shaped feeler 20, also with notch 1. 6 and connected to one sensor 2]. 1 may be of any shape, and may rotate the capstan 15 in the forward or reverse direction. Assume that the output signal shown can be sent to line 22. This direction sensor is for example An electronic filter circuit combined with a piezoelectric crystal, which responds to the movement of the Tween 2o to It may be designed to detect pulse waveforms that occur, or alternatively, to generate a direction signal in response to a phase difference or phase shift between two feelers. Two sensors 21 and 24 may be combined in the designed circuit.

Electronic digital counters use filtering circuits to remove unwanted or accidental pulses. Contains 1 "de-bouncing section 26. 1 BCD (binary coded decimal) count" Data: 27.1 BCD (binary coded decimal) data: r-da: 28, plus 7 digit LCD It is composed of a display 29. This LCD display 29 displays incremental measurements of 10 Display in base (in this case, 1 meter, centimeter, and millimeter) It is designed to.

When the flexible wire is wound back onto the cylindrical part 11 by the action of the spring 12, the sensor 21 or the cap Detects the reverse rotation of the tank wheel 15 and sends a pulse to the clothes counter 27 via the line 22. Send out one pulse, subtract the counted pulse one by one, and count down to zero. instruct them to do so. The measured value obtained from the counter 27 can be obtained by pressing the pushbutton 35. Since it can be stored in the display 29 or electronic memory at any time, it can be stored in the counter 27. There are no more pulses, and the last measured value remains displayed on the display 29. Manaru. It automatically resets to zero when the device is switched off.

The device is also equipped with direct wheel measurement capabilities. This function is applied to the axle 31. There is one atomizer-type rotary wheel 30 that is attached and rotates, and one piezoelectric or It engages with one tween 33 attached to the other electric pulse generator 34. A rotary pulse generator consisting of a single toothed rotor 32 is provided. child The output of the pulse generator is supplied to the debouncing section 26, and further Supplied to other counter parts. In addition to this, there is another Tween 37 or one set. sensor 38 and sends an electrical signal indicating forward or reverse rotation of the wheel. Start out. This part of the measuring device works somewhat the same way as a deflection line meter, but The difference is that the measurement pulse is generated by running the wheel 30 on the surface to be measured. Ru.

Furthermore, an auxiliary input component 40 in the form of an electric socket is also attached to this measuring device. connected to an external pulse generator such as a pedometer or manual or foot switch. It is designed to be used with an auxiliary jack. These pulses are added and is displayed on the display 29 mentioned above.

In the measuring device shown in FIGS. 2 and 2A, a centimeter is placed on one edge of the case 45. It has a scale 46, and a deflection measurement line 10 comes out from the hole in the center. others The free end of the deflection line has one flat clip or plate 48 on which the If necessary, a clip can be temporarily held at one end of the scale by means of one slotted hole 49. as soon as you put it in place, or around a suitable fixed object such as a hook or ball. You can temporarily moor it by wrapping a line around it. In this example, one side of the case An external direct measurement wheel 30 is placed in the corner, and an LCD display 29 is placed in the center of the case. An auxiliary input component 40 is located on the opposite edge of the base. 1 more meter switch or pushbutton 41 for controlling the conversion circuit from A switch 42 is also attached.

In another embodiment shown in FIG. 3, the same parts as in embodiment 1 are given the same reference numbers. That's it. An audio section 50 has also been added to the device. This audible part 5 0 has one tone generator 52 incorporating a counter and a register, and one speaker. 51 is connected. In addition, an audio on/off switch 53; There is also one external audio line 54 activated by a switch 55.

In the embodiment shown in Figure 4, the main components have the same reference numbers as in Figure 1. However, in this case, the unwinding cylindrical part 11 is a "Tensator". ” (registered trademark) is connected to the spring 60, and both ends of this spring are unwound. The cylindrical part 11 for the spring 1 and the cylindrical part 61 for the spring 1 are wound up. These designs Therefore, a nearly constant unwinding force acts over the entire length of the measured deflection line.

The other components in this embodiment are substantially the same as those in FIG.

In another embodiment shown in FIG. 5, instead of the direct measuring wheel 30 of FIG. A removable measuring wheel 63 with a larger diameter than the It is attached to the cut 64. This bracket is attached to the main body or housing of the measuring device. Designed to clip onto the housing housing 65, as well as the contacts on the housing body. Since it is equipped with electrical contacts 66 and 67 that engage with 68 and 69, Pulses are sent to the counter and display as described above.

FIG. 6 shows a modified clip 7o at the tip of the measuring line 10, which clip is rigid. Wrap the measuring wire around the ball or hook 71 and tighten it. It is for.

Another embodiment shown in FIG. 7 incorporates the same components as the embodiment of FIG. They have the same reference number. In this example, other A 6-minute bubble tube section 75 is connected to a first calculation section 76 . The measuring device is kept horizontal. When the mercury “bubble gauge” 77 is in the Ru. An angle meter 80 connected to the reference tube 79 corresponds to the measured value tanθ. A pulse output is sent to line 81, where θ is the elevation angle of reference tube 79. . It is combined with the measurement signal sent out from the measurement line 10 via the pulse generator 21. Then, the calculator 76 outputs D-tanθ, that is, the output corresponding to the height of the object being observed. Send out.

In the embodiment of FIG. 7, 87 is connected to the calculator 87 via jack 4o. external pulse generator such as a foot switch, 82 is metric/British variant 83 is zero or reset data switch, 84 is tone generation manual on/off switch for instrument or synthesizer 52; 86 is an external printer connected to the counter circuit. Set in calculator 76 A built-in one hexagonal keyboard 88 can be used to perform programmed functions or This is for entering other numbers.

The measuring line or measuring tape 10 may accumulate dust or increase in thickness or thickness during use. Is there a possibility that the rotary capstan 15 and the detector 16.2 4 may impair the measurement accuracy. For dust removal or dimension correction. , preferably a cleaning element 18 in the form of a felt or textile wiper in the device according to the invention; An electrically operated (thickness) sensor or gauge 1 that continuously detects the dimensions of the element lO 9, and calculate each correction value as a negative percentage rate. It is better to apply the voltage to the data 27. In this case, the correction value is proportional to the detected dimensional change. It is something that Alternatively or otherwise, electric lights such as flashing lights or audible alarms may be used. Gauge 19 is connected to the air alarm and displays the need for cleaning of element 10 and whether the measured value is questionable. It can also be shown or reported.

What shape is the audible part 50 with the speaker 51 used in the embodiment shown in FIG. For example, you can connect a tone generator to a counter circuit and generate a series of tones. A beep or beep sound is generated a number of times corresponding to the number to be visually displayed, e.g. For example, it can help people who are visually impaired or help them see in dark places. . Instead of or in addition to a tone generator, a voice synthesizer can be used as a counter or meter. It can also be connected to the math section to generate audio sounds representing the numbers displayed on the display. Wear. If possible, for example, incorporate magnetic or diode type electronic memory into the calculator. It is also good to have +1”-IX at least as a basic function of a portable measuring device. Put the 4 notes of I÷ into memory using a calculator, then use another direct measuring wheel. The capacity of a room or tank with a memory cell or tank can be calculated using the multiplication function twice to It can be obtained by multiplying the continuous measured values. Similarly, simple built-in functionality or programmability If you use the function, you can perform simple numerical calculations. Using R=Q/2π, the radius R of a cylindrical shape can be calculated from its circumference measurement Q.

Also, for convenience, the measured values can be input directly into the calculator.

It is a combination of a calculator and a counter, but it has a manual BCD (binary IO system) input. - Calculator and counter can be installed separately in the same holder. Ru. In that case, you can enter your measurements into this calculator just like any other stand-alone calculator. Ru.

If possible, the 6-minute bubble tube portion 75 may have a constant 6-minute angle θ. In that case , the calculator uses the programmed tano value to calculate from the formula yaw-wata tan θ. The height of the object to be observed can be directly calculated. 4 in this case is the measured distance from the object It's far away.

Connect the output side of the counter to an internal or external printer as required to print readings. Alternatively, a permanent record of the calculated values can be obtained. Also, mechanical, electronic or mechanical Attach an electronic “hold” or lock to the measurement device to prevent capstan or measurement It is also possible to hold the wheels in a momentary position and store the sensed dimensions in electronic memory.

If necessary, an adjustable zero/data pointer must be installed on the direct measurement wheel. It facilitates measurement and also provides a zero set point for the adjustment rotation. On the casing of the measuring device The control buttons on the device can be recessed or can be operated by operating some kind of button. It can also be combined with an electronic breaver circuit to generate audible sounds.

In the preferred embodiment of the invention described above, a rotating cap with measurement points is provided. As the movement of the deflection measurement line is transmitted to the stand, the measurement point or eye is placed on the deflection line itself. It is particularly noteworthy that no markings are required. This greatly extends the life of the measuring device. This will not only extend the period of time, but also eliminate equipment failures due to the disappearance of landmarks.

／’＞, J.

Ftc, 5° Treasure aI51 investigation report 1m-111 a-mes mt P CT / GB 87 / OOS 11ANNEXTTo'HF,DingNτERNAτENG0NALSEARCHRE: 'ORTON

Claims (20)

[Claims] 1. 1 holder, 1 movable measuring element, detecting the moving distance of the above measuring element one sensor, one electrical pulse generator coupled to said sensor, said pulse generator; one electronic digital counter or calculation circuit connected to the generator; and Consists of one output circuit connected to one visible, audible or recording output Linear measuring device. 2. The above measuring device is flexible, interlocks with the above measuring device, and allows its linear movement. Designed to rotate in unison and actuate the above pulse generator accordingly Claims characterized in that one rotating element is incorporated in the sensor. The measuring device according to item 1 above. 3. The above-mentioned rotating element is equipped with multiple physical, magnetic or optical measurement points, and One corresponding detector capable of detecting the measurement point mentioned above is integrated into the sensor. The measuring device according to claim 2, characterized in that: 4. The measuring element is elongated and flexible and can be used for physical, magnetic or optical measurements. Multiple points arranged at predetermined intervals, and one point that can detect the above measurement points. Claim 1, wherein a detector is incorporated in the sensor. Measuring device as described. 5. The measuring machine mentioned above can move in two contradictory directions depending on the measurement purpose. Detects the direction of movement and corresponds to the signal supplied to the above counter or calculation circuit. Claims characterized in that they include means designed to make changes that The measuring device according to any one of the ranges 1 to 4. 6. one electronic memory for summing the distance traveled in one direction by the measuring element; Means for subtracting the measured travel distance in its opposite direction to the above counter or calculator 6. The measuring device according to claim 5, wherein the measuring device is incorporated into a circuit. 7. A long thin flexible wire or tape is used as the measuring element, and one winding a cylindrical part, and one winding capable of imparting a substantially constant torque to said cylindrical part. Claims 1 and 2, characterized in that a return spring or a motor is incorporated. 7. The measuring device according to any one of Items 6 to 6. 8. The above measurement element has the shape of a thin deflection line with an almost circular cross section. A measuring device according to any one of claims 1 to 7, characterized in that: 9. 1 designed to output audible information regarding the distance traveled by the measuring element. a tone generator or voice synthesizer is incorporated into the audible output section. The measuring device according to any one of claims 1 to 8, characterized in that: . 10. One rotor with at least a portion of its outer circumference exposed, the movement of which is detected. one sensor coupled to said sensor and connected to said counter or calculator output circuit; one direct rotation consisting of one pulse generator providing output to the According to any one of claims 1 to 9, which is additionally equipped with a measuring device. Measuring device included. 11. for converting output from British Weights and Measures to metric or other units. Any of claims 1 to 10, characterized in that the means is incorporated. The measuring device according to any one of the above. 12. Auxiliary to the above counter or calculation circuit for connection with an external remote signal transmitter Claims 1 to 11, characterized in that an input connection section is provided. The measuring device according to any one of the above. 13. Contains one vertical angle measuring device and measures the vertical height of the object. The calculator above combines the tangent of the angle and the sensed straight line measurement to measure The features of claims 1 to 12, characterized in that they are programmed. A measuring device according to any one of the above. 14. One vial, pendulum or pendulum providing the horizontal or vertical data required for angle measurements or the like is incorporated in claim 13. Measuring device described in. 15. Set and/or adjust sensing dimension data or zero value. Claims 1 to 14, characterized in that the means for A measuring device according to any one of the above. 16. Mechanical, electronic or mechano-electronic “retainer” for holding measured values Any one of claims 1 to 15, characterized in that 1. The measuring device according to item 1. 17. 1 holder, 1 cylindrical part for winding, wrapped around the above cylindrical part One elastic deflection measuring element, interlocks with the above measuring element, and linearly moves the above measuring element. a rotating pulley that rotates in response to the rotation of the pulley; means for detecting rotation of the pulley; one pulse generator operated by, the input side to the above pulse generator and the output side to the above pulse generator. 1 electronic digital counter connected to 1 visible or audible output or a calculator and one exposed wheel and one pulse generator connected thereto; The output side is connected to the above digital counter or calculation circuit. A linear measuring device, which is composed of another direct measuring device. 18. Means for selectively switching the connection between the counter and the two pulse generators. 18. The measuring device according to claim 17, wherein a measuring device is incorporated therein. 19. One movable measuring element, connected to the above measuring element, and detecting the moving distance of the above element. One sensor outputs, connects with the above sensor, and outputs the number of pulses according to the detection movement distance above. 1 pulse generator that generates 1 electronic memo that stores the above detected dimension signal Connect to the above memory and apply a specific function or arithmetic expression to the above stored signal. one programmed or programmable calculation circuit to A portable measuring device consisting of one output section that displays or records the output of computing device. 20. one electronic computer having a data storage device and a test drive to said data storage device; Provides a means for transmitting linear measurements and performs one or more calculations. Now one programmed or programmable logic function circuit and one A visual or audible display or recording unit is incorporated in the calculator. A portable linear measuring device.