CN1181496A - Electric digital display band tape and band tape combined with electronic electronic calculator - Google Patents
Electric digital display band tape and band tape combined with electronic electronic calculator Download PDFInfo
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- CN1181496A CN1181496A CN97106606A CN97106606A CN1181496A CN 1181496 A CN1181496 A CN 1181496A CN 97106606 A CN97106606 A CN 97106606A CN 97106606 A CN97106606 A CN 97106606A CN 1181496 A CN1181496 A CN 1181496A
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- tape measure
- electronic
- length
- digital
- tape
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B3/00—Measuring instruments characterised by the use of mechanical techniques
- G01B3/10—Measuring tapes
- G01B3/1005—Means for controlling winding or unwinding of tapes
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B3/00—Measuring instruments characterised by the use of mechanical techniques
- G01B3/10—Measuring tapes
- G01B3/1061—Means for displaying or assisting reading of length measurement
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B3/00—Measuring instruments characterised by the use of mechanical techniques
- G01B3/10—Measuring tapes
- G01B3/1061—Means for displaying or assisting reading of length measurement
- G01B3/1069—Electronic or mechanical display arrangements
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B3/00—Measuring instruments characterised by the use of mechanical techniques
- G01B3/10—Measuring tapes
- G01B3/1084—Tapes combined with arrangements for functions other than measuring lengths
- G01B3/1094—Tapes combined with arrangements for functions other than measuring lengths for recording information or for performing calculations
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/02—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B3/00—Measuring instruments characterised by the use of mechanical techniques
- G01B3/10—Measuring tapes
- G01B3/1005—Means for controlling winding or unwinding of tapes
- G01B2003/1023—Winding mechanisms
- G01B2003/1028—Winding mechanisms operated by electric motors
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B3/00—Measuring instruments characterised by the use of mechanical techniques
- G01B3/10—Measuring tapes
- G01B3/1003—Measuring tapes characterised by structure or material; characterised by layout or indicia
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Tape Measures (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
A electric flexible rule with digital indication or integrated with electronic calculator features that said flexible rule is driven by electric motor and the reading of the rule is indicated digitally. Its advantages are easy operation, precise measurement and clear reading.
Description
The present invention relates to electricity, electronics and mechanical technique, relate more specifically to have the electric band tape of numeral demonstration and the electric digital demonstration tape measure that makes up with electronic calculator.
General tape measure all with manually, in use must be worked by two hands simultaneously, elongates with the shortening tape measure to reach the purpose of measurement to conform to testee.And the reading of general tape measure is to realize by the scale of identification on the tape measure, thereby very inconvenient, also limited its usable range simultaneously.
Task of the present invention is to provide a kind of and drives the tape measure that the reading of tape measure is shown by light-emitting diodes digitron or liquid crystal digital display with micromotor.It both can elongate and shortened tape measure with hand in measurement, reached the purpose of measurement to conform to testee.It also can use direct motor drive, realizes singlehanded the elongation and the shortening tape measure, reaches the purpose of measurement to conform to testee.The amount of its elongation and shortening is read in by photoelectricity that method, electro-induction or resistance read in method or the magnetic induction method of reading in is read in.Because of the signal amount of reading in tape measure corresponding to the certain-length amount, thus through the electronic counter counting, after display driver is strengthened, just can be by the light-emitting diodes digitron or liquid crystal digital display demonstrate the length that testee is measured to.
Task of the present invention realizes being based on:
1. Dai Zhuan tape measure can as long as change the rotation direction of micromotor, just can be realized the mechanical principle of the elongation and the shortening of tape measure by the roll shaft scrolling that drives with micromotor;
Dai Zhuan tape measure can make in advance have optics, the tape measure of the length metering mark of electricity or magnetics, after the length metering mark of this optics, electricity or the magnetics of tape measure is read in by optical pickup, electricity read head or magnetics read head, be convertible into electronic length metering signal, after electronics strengthen to be handled, and available light-emitting diodes digitron or the liquid crystal display displays electronics principle of coming out.
3. the straight length of Dai Zhuan tape measure can also be by a tape measure follower disk with length metering mark of optics, electricity or magnetics, allows optical pickup, electricity read head or magnetics read head read in indirectly the length metering of tape measure.After converting electronic length metering signal and electronics to and strengthening handling, and available light-emitting diodes digitron or the liquid crystal display displays electronics principle of coming out.
Electronic digital band tape), electric band tape, have the tape measure that numeral shows and (call in the following text: digital band tape) and with the electric digital of electronic calculator combination show that tape measure (calls in the following text: counter combination motor digital band tape) of the present invention have electric band tape that numeral shows and show that with the electric digital of electronic calculator combination tape measure can make the electric band tape that has numeral and show according to actual needs and (call in the following text:.
The material of tape measure can be metal or nonmetal and composite reinforced material formation as thin alloyed steel strip, alloy aluminium strip and plastics reinforcing band etc.The tape measure material of electronic digital band tape answers elasticity better, and tape measure can keep straight and upright on certain-length, just can use the manual and electric digital band tape by one hand in certain-length, makes tape measure flexible arbitrarily, measures.The manual and electric digital band tape is by driving motor, tape measure telescopic drive device, gauge tap, power switch, battery, tape measure manual and electric converter, the tape measure that has retraction spring being housed and electronics is read the chi device and the length digital indicator constitutes.Wherein driving motor is the low-voltage direct micromotor, and motor also has a gear or gear on worm speed reduction unit; Tape measure telescopic drive device is made up of one group or two groups of tape measure guide wheels and tape measure telescopic propeller shaft; Tape measure manual and electric converter is by driving shaft contact roller, the curved support of driving shaft contact roller and have cam or the tape measure manual and electric change-over switch of prominent arm is formed.Pull tape measure manual and electric change-over switch, because the ejection of the cam of tape measure manual and electric change-over switch or prominent arm or loosen, make the curved support of driving shaft contact roller rely on or leave driving shaft, thereby make the driving shaft contact roller on the curved support of driving shaft contact roller compress between tape measure and the driving shaft or to unclamp.At this moment if power switch is opened, press gauge tap, driving motor is through the driving shaft of gear or gear on worm deceleration rear drive tape measure telescopic drive device, and the driving shaft of tape measure telescopic drive device and driving shaft contact roller spur tape measure therebetween.According to the different battery polars that gauge tap is communicated with, driving motor forward or reverse.The driving shaft of tape measure telescopic drive device is followed forward or reverse.When the driving shaft of driver and the tape measure between the driving shaft contact roller are compacted, tape measure is subjected to the clamping of the driving shaft and the driving shaft contact roller of driver, can only be with the direction of motion motion of the driving shaft of driver, make driving shaft and driving shaft contact roller that tape measure is therebetween released or drawn in, tape measure just stretches out with the control of gauge tap or withdraws, thereby realizes the motorized motions function of tape measure.At this moment do not open as if power switch, tape measure is subjected to the clamping of the driving shaft and the driving shaft contact roller of driver, can not voltuntary movement, driving shaft contact roller, the curved support of driving shaft contact roller and tape measure manual and electric change-over switch lump together and form the tape measure positioning switch, the same with existing manual tape measure, can make tape measure keep motionless on the length of stretching with pulling.Have only tape measure manual and electric change-over switch is pulled manual position, make the driving shaft contact roller leave driving shaft.Tape measure between this moment driving shaft and the driving shaft contact roller is not owing to there is the clamping of driving shaft and driving shaft contact roller, and electronic digital band tape ability is the same with existing tape measure, and available pulling stretched and shortened, and is manual tape measure.
It is to read in device, length metering signal processor and length metering signal output booster by pre-electronic length metering signal (mark), electronic length metering signal on tape measure to constitute that the electronics of electronic digital band tape is read chi device (system).Pre-electronic length metering signal on tape measure can be optics the length metering mark, as the scale of black and white or light and shade, optics the length number word mark; Also can be the length metering mark of electricity, as the electric capacity scale, the metallic tape self-resistance; Or the length metering mark of magnetics, as with the mark that contains the printing of ferromagnetic material, at the tape measure that contains ferromagnetic material or be covered with the magnetic signal that applies length metering in (record) on the tape measure of ferromagnetic material layers in advance.Electronic length metering signal reads in device and pre-electronic length metering signal (mark) on the tape measure signal that is respectively optics that adapts and reads in device, reads in device as the laser signal; The signal of electricity reads in device, as resistance bridge; Or the signal of magnetics reads in device, as magnetic head etc.Electronic length metering signal reads in apparatus by the tape measure guide wheel of tape measure telescopic drive device, so that tape measure is in stretching motion, the electronic length metering signal (mark) on the tape measure can stably be read into signal and read in the device.Same length metering signal processor also needs and the signal that adapts reads in device and cooperates, and converts the numerical value of non-decimal counting or simulation to metric length metering numerical value.Metric length metering numerical value is exported to the length digital indicator after the enhancing of length metering signal output booster.The length digital indicator can use the light-emitting diodes digitron also can use liquid crystal digital display.The position of length numeral display equipment should eye-catchingly be observed with being easy to.
Electric band tape is a kind of simplification defaecation design of electronic digital band tape.Because price limit as long as tape measure has the function that the direct motor drive tape measure elongates and shortens under many occasions, can singlehanded control be used just much of that.Electric band tape is exactly a kind of tape measure of making according to this actual needs.The tape measure that driving motor, tape measure telescopic drive device, gauge tap, power switch, battery and manual and electric converter only is housed in electric band tape and has retraction spring.The driver and the controller of the driver of electric band tape and the structure of controller and electronic digital band tape are just the same.Electric band tape is the same with electronic digital band tape in use.Turn on the power switch, according to the different battery polars that gauge tap is communicated with, the forward or reverse of driving motor.The driving shaft of tape measure telescopic drive device is followed forward or reverse, makes driving shaft and driving shaft contact roller that tape measure is therebetween released or drawn in, thereby realizes the motorized motions function of tape measure.Pull tape measure manual and electric change-over switch equally, also can make and compress between the driving shaft of driving shaft contact roller on the curved support of driving shaft contact roller or unclamp tape measure and driver, the function of tape measure manually and between electronic is being changed, perhaps form the tape measure locking switch, make tape measure keep motionless on the length of stretching with pulling.
Digital band tape is the another kind simplification defaecation design according to actual needs of electronic digital band tape.Tape measure is owing to be subjected to the restriction of material, and it is straight and upright that the above tape measure of certain-length just is difficult to maintenance, thus the tape measure of wide range to make the practical value of electronic digital band tape little.But the tape measure of wide range is made digital band tape, and it is practical to be worth really clearly.Digital band tape has only increased on the basis of existing tape measure that electronics is read chi device (system) and the length digital indicator constitutes.In order to make tape measure in stretching motion, the electronic length metering signal (mark) on the tape measure can stably be read into signal and read in the device.On digital band tape, to dispose one group or two groups of tape measure guide wheels equally.To read chi device (system) structure just the same with the electronics of electronic digital band tape, and it also is to read in device, length metering signal processor and length metering signal output booster and the length digital indicator constitutes by pre-electronic length metering signal (mark), electronic length metering signal on tape measure that the electronics of digital band tape is read chi device (system).Its length digital indicator can be the light emitting diode digitron, also can be liquid crystal digital display.
The wide range digital band tape can also increase the electronic backrush device of tape measure.But the electronic backrush device of tape measure is different from the driving and the control electric device of the electric band tape of electronic digital band tape.The electronic backrush device of tape measure is to be made of battery, motor, variator, clutch driven wheel or clutch driven roller, operating key and linked switch.Use the digital band tape of clutch driven wheel, then should be furnished with corresponding gear on the bearing support of tape measure, and constitute clutch-drive with the clutch driven wheel.Use the digital band tape of clutch driven roller, should be furnished with corresponding running roller on the bearing support of tape measure, constitute clutch-drive with the clutch driven roller.Two kinds of clutch-drives all are by controlling with operating key, control knob or the control lever of power switch interlock.When the operating key of clutch-drive, control knob or control lever are pulled when starting, the power switch of interlock is opened the gear interlock (or the clutch driven roller engages with the running roller of tape measure bearing support) on the driven wheel of clutch simultaneously and the tape measure bearing support.Because the driving of motor, tape measure bearing support be and then rotation under the drive of clutch driven wheel (or clutch driven roller), tape measure just by evenly neatly and promptly backrush to the tape measure bearing support.Do not pull when starting when the operating key of clutch-drive, control knob or control lever, the power switch of interlock is closed, the gear disengaging on clutch driven wheel and the tape measure bearing support (or the running roller of clutch driven roller and tape measure bearing support separates).The tape measure bearing support of digital band tape is not subjected to the obstruction of clutch driven wheel (or clutch driven roller), and tape measure can arbitrarily be pulled out.
Counter combination motor digital band tape is the improved according to actual needs practical design of the another kind of electronic digital band tape.Counter combination motor digital band tape is the electronics of electronic digital band tape to be read the length digital signal that chi device (system) reads in be directly inputted in the electronic calculator, so not only the numerical value of tape measure can be shown by the display of electronic calculator, and the numerical value of tape measure also can directly carry out computing in electronic calculator, and the result of its computing is shown by the electronic calculator display again.This is convenient especially for aspects such as mechanical, electric, buildings, as asks the volume of an object or ask the weight of an object and ask proportion of an object etc.Therefore it is very practical tape measure being made electronic calculator combination motor digital band tape.Electronic calculator combination motor digital band tape is to be read by electric band tape part, electronics that the chi device reads in part and electronic calculator partly constitutes.Wherein electric band tape part and electronics read that its structure of chi device part can to read the chi device partly the same with the electric band tape part of electronic digital band tape and electronics.The electronics that different is in the electric calculating machine combination motor digital band tape is read length signal that the chi device reads in and is not directly handled and through the processing of length metering signal output booster through the length metering signal processor, but by a digital signal synergist, electronics is read the length signal that the chi device reads in convert the digital signal of electronic calculator to, and be input in the electronic calculator.Electronic calculator is then pressed the corresponding key of electronic calculator to the further computing of the length metering of measuring if desired; If do not need electronic calculator again to the further computing of the length metering of measuring, then press the key as a result of electronic calculator=, directly in the digital indicator of electronic calculator, read the length metering result who measures.Here tape measure part and counter partly are shared digital indicators.The function of the electronic calculator of counter combination motor digital band tape can dispose according to the usable range of tape measure, have only the electronic calculator of simple operation function as configuration, dispose the electronic calculator of functional operation function or the electronic calculator that configuration has memory function and functional operation function.
Below in conjunction with accompanying drawing electronic digital band tape of the present invention, electric band tape, digital band tape and counter combination motor digital band tape are described in further detail:
Fig. 1 is a kind of concrete enforcement structural representation of electronic digital band tape of the present invention.Wherein 1 is with the gear or the driving motor of gear on worm speed reduction unit; The 2nd, tape measure telescopic drive device, wherein 2.1 is driving shafts; The 3rd, gauge tap; The 4th, power switch; The 5th, battery: the 6th, tape measure manual and electric converter, wherein 6.1 is driving shaft contact rollers; 6.2 be the curved support of driving shaft contact roller; 6.3 be the tape measure manual and electric change-over switch that has cam or prominent arm; The 7th, have the tape measure of retraction spring; The 10th, electronics is read chi device (system).Wherein 11 is pre-electronic length metering signals (mark) on tape measure, and the example here is the length metering mark of optics, the i.e. scale of black and white or light and shade; The 12nd, electronic length metering signal reads in device, should be that optical signal reads in device here with preceding fitting mutually; The 13rd, the length metering signal processor; The 14th, length metering signal output booster; And 20 are length digital indicators.During use, turn on the power switch 4 earlier and press gauge tap 3, tape measure 7 just stretches out with the control of gauge tap or withdraws.At this moment pre-electronic length metering signal (mark) 11 on tape measure be along with tape measure 7 stretches out or withdraw, will measure signal and be defeated by electronic length and measure signal and read in device 12.Electronic length metering signal reads in the metering signal that device 12 reads in is defeated by length metering signal processor 13, and after being strengthened by length metering signal output booster 14, is defeated by length digital indicator 20.The flexible quantity of tape measure just shows in length digital indicator 20.
If only use the digital band tape function of electronic digital band tape,, tape measure manual and electric converter 6 is pulled to manual position as long as keep power switch 4 to open.At this moment gauge tap 3 no longer works, tape measure 7 just can be arbitrarily with manually stretched or push away withdrawal.Owing to be that power switch 4 is being opened, electronics is read chi device (system) 10 still in work.Pre-electronic length metering signal (mark) 11 on tape measure be along with tape measure 7 stretches out or withdraw, will measure signal and be defeated by electronic length and measure signal and read in device 12.Electronic length metering signal reads in the metering signal that device 12 reads in is defeated by length metering signal processor 13, and after being strengthened by length metering signal output booster 14, is defeated by length digital indicator 20.The flexible quantity of tape measure just shows in length digital indicator 14.Because tape measure 7 has retraction spring, if one loose one's grip, tape measure will bounce back back automatically.The flexible numerical value of the tape measure that shows in the length digital indicator 14 will change and inaccurate.At this moment tape measure manual and electric converter 6 can be pulled to electronic position.Owing to have the curved support 6.2 of tape measure manual and electric change-over switch 6.3 ejection driving shaft contact rollers of cam or prominent arm, make it to rely on driving shaft 2.1, thereby the driving shaft contact roller 6.1 on the curved support 6.2 of driving shaft contact roller will be compressed between tape measure 7 and the driving shaft 2.1.Tape measure 7 is subjected to the clamping of driving shaft 2.1 and driving shaft contact roller 6.1, can not voltuntary movement, be that curved support 6.2 of driving shaft contact roller 6.1, driving shaft contact roller and tape measure manual and electric change-over switch 6.3 lump together and play a part the tape measure locking switch, the same with existing manual tape measure, can make tape measure keep motionless on the length of stretching with pulling.
If only use the manual tape measure function of electronic digital band tape, as long as powered-down switch 4 pulls tape measure manual and electric converter 6 to manual position.At this moment gauge tap 3 no longer works, tape measure 7 just can be arbitrarily with manually stretched or push away withdrawal.Because power switch 4 closing, be that electronics is read chi device (system) 10 and do not worked.Tape measure 7 can only be by being imprinted on top length mark by the interpretation of people's merit.At this moment the manual and electric digital band tape is complete in manually tape measure is the same.To lump together the effect of seeing the tape measure locking switch by driving shaft contact roller 6.1, the curved support 6.2 of driving shaft contact roller and tape measure manual and electric change-over switch 6.3 equally, make tape measure keep motionless on the length of stretching with pulling.
Fig. 2 is a kind of concrete enforcement structural representation of a kind of simplification defaecation design-electric band tape according to actual needs of electronic digital band tape of the present invention.Wherein 1 is with the gear or the driving motor of gear on worm speed reduction unit; The 2nd, tape measure telescopic drive device, wherein 2.1 is driving shafts; The 3rd, gauge tap; The 4th, power switch; The 5th, battery; The 6th, tape measure manual and electric converter, wherein 6.1 is driving shaft contact rollers; 6.2 be the curved support of driving shaft contact roller; 6.3 be the tape measure manual and electric change-over switch that has cam or prominent arm; The 7th, have the tape measure of retraction spring.During use, turn on the power switch 4 earlier and press gauge tap 3, tape measure 7 just stretches out with the control of gauge tap or withdraws.Tape measure 7 can only be by being imprinted on top length mark by the interpretation of people's merit.The manual and electric tape measure will lump together super the effect of tape measure locking switch by driving shaft contact roller 6.1, the curved support 6.2 of driving shaft contact roller and tape measure manual and electric change-over switch 6.3 equally, makes tape measure keep motionless on the length of stretching with pulling.
Fig. 3 is a kind of concrete enforcement structural representation of the another kind simplification defaecation design-digital band tape according to actual needs of electronic digital band tape of the present invention.Wherein 4 is power switches; The 5th, battery; 6.5 be the tape measure hand-operated rocker arm; 7.1 be the tape measure that does not have retraction spring; The 10th, electronics is read chi device (system).Wherein 11 is pre-electronic length metering signals (mark) on tape measure, and the example here is the length metering mark of optics, the i.e. scale of black and white or light and shade; The 12nd, electronic length metering signal reads in device, should be that optical signal reads in device here with preceding fitting mutually; The 13rd, the length metering signal processor; The 14th, length metering signal output booster; The 20th, the length digital indicator.During use, turn on the power switch 4 earlier, the stretching that tape measure 7.1 is whipped and stretching out.At this moment pre-electronic length metering signal (mark) 11 on tape measure be along with tape measure 7.1 stretches out, and will measure signal and be defeated by electronic length and measure signal and read in device 12.Electronic length metering signal reads in the metering signal that device 12 reads in is defeated by length metering signal processor 13, and after being strengthened by length metering signal output booster 14, is defeated by length digital indicator 20.The quantity that tape measure stretches out just shows in length digital indicator 20.
Fig. 4 is that electronic digital band tape of the present invention is simplified a kind of concrete enforcement structural representation that defaecation design-digital band tape has the electronic backrush device of tape measure.Wherein 1.1 is motor of the electronic backrush device of tape measure; 1.2 be the variator of the electronic backrush device of tape measure; 1.3 be clutch driven wheel or clutch driven roller; The 4th, power switch; The 5th, battery; 6.5 be the tape measure hand-operated rocker arm; 7.1 be the tape measure that does not have retraction spring; 7.3 be tape measure bearing support with gear or running roller; 7.5 be clutch follower gear or running roller; 7.6 be operating key (control knob or control lever) with gauge tap 4.1 interlocks.The 10th, electronics is read chi device (system).Wherein 11 is pre-electronic length metering signals (mark) on tape measure; The 12nd, electronic length metering signal reads in device; The 13rd, the length metering signal processor; The 14th, length metering signal output booster; And 20 are length digital indicators.Manual digital band tape with Fig. 3 during use is the same, turns on the power switch 4 earlier, the stretching that tape measure 7.1 is whipped and stretching out.Electronic length on tape measure metering signal (mark) 11 be along with tape measure 7.1 stretches out, and will measure signal and be defeated by electronic length and measure signal and read in device 12.The metering signal that reads in is defeated by length metering signal processor 13, and after length metering signal output booster 14 strengthens, is shown by length digital indicator 14.When manual digital band tape is finished using, operating key (control knob or control lever) 7.6 is pulled to starting the position, the gauge tap 4.1 of interlock is opened, simultaneously follower gear (or driven running roller) 7.5 interlocks (or joint) on clutch driven wheel (or clutch drive roller wheel) 1.3 and the tape measure bearing support 7.3 with gear (or running roller).Because the driving of the electronic backrush device of tape measure motor 1.1, driving force drags tape measure bearing support 7.3 through variator 1.2, clutch driven wheel (or clutch driven roller) 1.3 and the tape measure bearing support follower gear (or driven running roller) 7.5 of the electronic backrush device of tape measure.Tape measure bearing support 7.3 and then rotates under the drive of clutch driven wheel (or clutch driven roller) 1.3, tape measure 7.1 just by backrush promptly to tape measure bearing support 7.3.Fig. 5 is a kind of concrete enforcement structural representation of the improved according to actual needs practical design of the another kind of electronic digital band tape of the present invention-electronic calculator combination motor digital band tape.Wherein 1 is with the gear or the driving motor of gear on worm speed reduction unit; The 2nd, tape measure telescopic drive device, wherein 2.1 is driving shafts; The 3rd, gauge tap; The 4th, power switch; The 5th, battery; The 6th, tape measure manual and electric converter, wherein 6.1 is driving shaft contact rollers; 6.2 be the curved support of driving shaft contact roller; 6.3 be the tape measure manual and electric change-over switch that has cam or prominent arm; The 7th, have the tape measure of retraction spring; The 10th, electronics is read chi device (system).Wherein 11 is pre-electronic length metering signals (mark) on tape measure, and the example here is the length metering mark of optics, the i.e. scale of black and white or light and shade; The 12nd, electronic length metering signal reads in device, should be that optical signal reads in device here with preceding fitting mutually; The 15th, the digital signal synergist; The 30th, electronic calculator; The 32nd, the digital indicator of electronic calculator.Counter combination motor digital band tape in use, except that the repertoire that can use counter combination motor digital band tape, electronic digital band tape is the same with using, and also can only use the digital band tape function in the counter combination motor digital band tape separately; Only use the electric band tape function in the counter combination motor digital band tape; Or only use manual tape measure function in the counter combination motor digital band tape, and the electronic digital band tape function of only using electric calculating machine combination motor digital band tape.When using the repertoire of counter combination motor digital band tape, turn on the power switch 4, press gauge tap 3, tape measure 7 just stretches out with the control of gauge tap or withdraws.Pre-electronic length metering signal (mark) 11 on tape measure be along with tape measure 7 stretches out or withdraw, will measure signal and be defeated by electronic length and measure signal and read in device 12.The 12 metering signals that will read in are defeated by digital signal synergist 15, and are entered in the electronic calculator 30 by digital signal synergist 15.To enter after numeral in the electronic calculator carries out further computing, or directly press as a result key=, the result of unions just measured tape measure 7 by the digital indicator 32 of electronic calculator 30, or measurement result shows.When using the local function of counter combination motor digital band tape, the same with the local function that uses electronic digital band tape fully.
Fig. 6 is a kind of concrete enforcement structural representation that the optical electron of electronic digital band tape of the present invention is read chi device (system).Wherein 11 is pre-optical electron length metering signal (mark) on tape measure, the i.e. scale of black and white or light and shade; The 12nd, optical length metering signal reads in device, and wherein 12a is that optical signal reads in device, and 12c is a LASER Light Source; The 13rd, digital length metering signal processor; The 14th, length metering signal output booster; The 20th, the length digital indicator.During use, tape measure 7 just stretches out with the control of gauge tap or withdraws, and pre-electronic length metering signal (mark) 11 on tape measure be along with tape measure 7 stretches out or withdraw, will measure signal and be defeated by electronic length and measure signal and read in device 12.Electronic length metering signal reads in the metering signal that 12 pairs of devices read in and carries out reversible counting, and is defeated by length metering signal processor 13, after being strengthened by length metering signal output booster 14, is defeated by length digital indicator 20 and shows.
Fig. 6 .1 is a kind of concrete enforcement structural representation that the optical digital type electronics of electronic digital band tape of the present invention is read chi device (system).Wherein 11.1 is pre-optical digital type electronic length metering signals (mark) on tape measure, and wherein 11.1a is an optical digital type length metering mark, and 11.1b is the positive negative value metering of an optics reference marker; 12.1 be that optical digital type length metering signal reads in device, wherein 12.1a is that optical digital length metering mark laser signal reads in device, 12.1b is that the positive negative value metering of optics reference marker laser signal reads in device, and 12.1c is a LASER Light Source; 13.1a be digital length metering signal processor and; The 14th, length metering signal output booster; And 20 are length digital indicators.During use, pre-on tape measure optical digital type electronic length metering signal (mark) 11.1a and the positive negative value metering of optics reference marker 11.1b along with the stretching out or withdraw of tape measure 7, optical digital type metering signal is defeated by optical digital type length metering signal reads in device 12.1a and the positive negative value of optics and measure reference marker laser signal and read in device 12.1b.Optical digital type length metering signal reads in device 12.1a to the optical digital type metering signal counting of decoding, and the positive negative value metering of optics reference marker laser signal reads in device 12.1b then to carry out positive negative value to the decoding count value and measure.The metering signal that reads in is defeated by length metering signal processor 13, and by after 14 enhancings of length metering signal output booster, is defeated by length digital indicator 20 and shows.
Fig. 6 .2 is a kind of concrete enforcement structural representation that the tape measure follower disk optical electron of electronic digital band tape of the present invention is read chi device (system).Wherein 8 is tape measure follower disks; 11.2 be that optical electron length metering signal (mark) on the tape measure follower disk is the scale of black and white or light and shade; The 12nd, optical length metering signal reads in device; The 13rd, digital length metering signal processor; The 14th, length metering signal output booster; And 20 are length digital indicators.During use, tape measure follower disk 8 is along with tape measure 7 stretches out or withdrawal and forward and reverse rotation.Pre-optical electron length metering signal (mark) 11.3 on the tape measure follower disk is defeated by optical length metering signal with forward and reverse rotation with signal and is read in device 12.Optical length metering signal reads in 12 pairs of optical metrology signals of device to carry out reversible counting and reads in.The reversible counting signal that reads in is defeated by length metering signal processor 13, and by after 14 enhancings of length metering signal output booster, is defeated by length digital indicator 20 and shows.
Fig. 6 .3 is a kind of concrete enforcement structural representation that the electricity capacitor type electronics of electronic digital band tape of the present invention is read chi device (system).Wherein 11.2 is pre-electricity capacitor type electronic length metering signals (mark) on tape measure; 12.2 be that electricity capacitor type length metering signal reads in device; The 13rd, digital length metering signal processor; The 14th, length metering signal output booster; The 20th, the length digital indicator.During use, pre-electricity capacitor type electronic length metering signal (mark) on tape measure is along with tape measure 7 stretches out or withdraw, the electricity capacitor type measured signal be defeated by electricity capacitor type length metering signal and read in device 12.2.Electricity capacitor type length metering signal reads in the 12.2 pairs of electricity capacitor types of the device metering signal counting of decoding and reads in.The metering signal that reads in is defeated by length metering signal processor 13, and by after 14 enhancings of length metering signal output booster, is defeated by length digital indicator 20 and shows.
Fig. 6 .4 is a kind of concrete enforcement structural representation that the tape measure follower disk electricity capacitor type electronics of electronic digital band tape of the present invention is read chi device (system).Wherein 8 is tape measure follower disks; 11.3 be the electricity capacitor type electronic length metering signal (mark) on the tape measure follower disk; 12.3 be that electricity capacitor type length metering signal reads in device; The 13rd, digital length metering signal processor; The 14th, length metering signal output booster; And 20 are length digital indicators.During use, tape measure follower disk 8 is along with tape measure 7 stretches out or withdraw, and pre-electricity capacitor type electronic length metering signal (mark) 11.3 on the tape measure follower disk is defeated by electricity capacitor type length metering signal with electricity capacitor type metering signal and read in device 12.3.Electricity capacitor type length metering signal reads in the 12.3 pairs of electricity capacitor types of the device metering signal counting of decoding and reads in.The metering signal that reads in is defeated by length metering signal processor 13, and by after 14 enhancings of length metering signal output booster, is defeated by length digital indicator 20 and shows.Fig. 6 .5 is a kind of concrete enforcement structural representation that the tape measure resistance bridge electronics of electronic digital band tape of the present invention is read chi device (system).Wherein 11.5 is tape measure Resistance probes; 12.5 be resistance bridge length metering analog to digital converter; The 13rd, digital length metering signal processor; The 14th, length metering signal output booster; And 20 are length digital indicators.During use, along with the stretching out or withdraw of tape measure 7, the resistance value from terminal in the tape measure to tape measure Resistance probe 11.5 changes.This increased resistance value converts the length metering numeral to through resistance bridge length metering analog to digital converter 12.5 and reads in.The metering signal that reads in is defeated by length metering signal processor 13, and by after 14 enhancings of length metering signal output booster, is defeated by length digital indicator 20 and shows.
Fig. 6 .6 is a kind of concrete enforcement structural representation that the magnetics electronics of electronic digital band tape of the present invention is read chi device (system).Wherein 11.6 is with contain the magnetics length metering signal (mark) that ferromagnetic material prints on tape measure; 12.6 be that magnetics length metering signal reads in device, magnetic head; The 13rd, digital length metering signal processor; The 14th, length metering signal output booster; And 20 are length digital indicators.During use, stretching out or withdraw along with tape measure 7, the magnetics length metering signal (mark) 11.6 that is printed on the tape measure is being to skim over before magnetics length metering signal reads in device 12.6, and magnetics length metering signal reads in 12.6 pairs of magnetics length meterings of device signal 11.6 to carry out reversible counting and read in.The metering signal that reads in is defeated by length metering signal processor 13, and by after 14 enhancings of length metering signal output booster, is defeated by length digital indicator 20 and shows.
Fig. 6 .7 is the another kind of concrete structural representation of implementing that the magnetics electronics of electronic digital band tape of the present invention is read chi device (system).Wherein 11.7 is magnetics length metering signals of prerecording on the tape measure that is covered with the ferromagnetic material coating; 12.6 be that magnetics length metering signal reads in device, magnetic head; The 13rd, digital length metering signal processor; The 14th, length metering signal output booster; And 20 are length digital indicators.During use, stretching out or withdraw along with tape measure 7, prerecording is being to skim over before magnetics length metering signal reads in device 12.6 at the magnetics length metering signal 11.7 on the tape measure, and magnetics length metering signal reads in 12.6 pairs of magnetics length meterings of device signal 11.7 to carry out reversible counting and read in.The metering signal that reads in is defeated by length metering signal processor 13, and by after 14 enhancings of length metering signal output booster, is defeated by length digital indicator 20 and shows.
Claims (13)
1. one kind has the electric band tape that numeral shows, be with the gear or the driving motor of gear on worm speed reduction unit by 1,2 tape measure telescopic drive devices, comprising 2.1 driving shafts, 2.2 tape measure guide wheel or guide rail, 3 gauge tap, the 4th, power switch, 5 batteries, 6 tape measure manual and electric converters, comprising 6.1 driving shaft contact rollers, 6.2 the curved support of driving shaft contact roller, 6.3 have the tape measure manual and electric change-over switch of cam or prominent arm, 7 have the tape measure that retraction spring also is shaped on electronic length gage mark (or signal) 11 in advance, 10 electronics are read chi device (system), comprising 11 pre-electronic length metering signals (mark) on tape measure, 12 electronic lengths metering signal reads in device, 13 length metering signal processor, 14 length metering signals output booster, 20 length digital indicators and 30 Flexible rule cases constitute.12 electronic lengths metering signal reads in device close driving shaft 2.1 and tape measure guide wheel 2.2 and is positioned at tape measure one side, and is relative with driving shaft 2.1 with the driving shaft contact roller 6.1 that is positioned at the tape measure opposite side.Its characteristics are:
1.1. the electronic length gage mark (or signal) 11 that on tape measure 7, is shaped in advance.
1.2. on tape measure 7, except that prefabricated electronic length gage mark (or signal) 11 is arranged, the length identification marking of common tape measure is arranged also.
1.3. electronic length metering signal reads in device 12 in form, method and measure signal (mark) the 11st with pre-electronic length on tape measure 7 in nature is consistent.
1.4. electronic length metering signal reads in device 12 and reads in device for reversible (be that forward adds, oppositely subtract).
1.5. electronic length metering signal reads in device 12, length metering signal processor 13 constitutes by amassing into circuit with length metering signal output booster 14.
1.6. length digital indicator 20 is positioned at the position of gazing at and being easy to observe on the Flexible rule case 30, as end face, side or end face.
1.7. length digital indicator 20 also can be semi-independent of Flexible rule case 30, and is fixed on the position of gazing on the Flexible rule case 30 by an axle or universal knot, so that length digital indicator 20 can overturn where necessary, laterally or vertically rotates, to be convenient to observation.
1.8. the driving shaft contact roller 6.1 on the curved support 6.2 of driving shaft contact roller and the position of driving shaft 2.1 promptly are close to driving shaft 2.1 or loose from driving shaft 2.1 because of the moving of tape measure manual and electric change-over switch 6.3 that has cam or prominent arm changes.
1.9. tape measure guide wheel or guide rail 2.2 are positioned at inboard (a group) or both sides (two groups) that electronic length metering signal reads in device 12.
1.10 the rotation direction of motor 1 changes direction of current control by gauge tap 3.
2. according to the described electronic digital band tape of claim 1., can be combined into counter combination motor digital band tape with counter, it is with the gear or the driving motor of gear on worm speed reduction unit by 1,2 tape measure telescopic drive devices, comprising 2.1 driving shafts, 2.2 tape measure guide wheel or guide rail, 3 gauge tap, the 4th, power switch, 5 batteries, 6 tape measure manual and electric converters, comprising 6.1 driving shaft contact rollers, 6.2 the curved support of driving shaft contact roller, 6.3 have the tape measure manual and electric change-over switch of cam or prominent arm, 7 have the tape measure that retraction spring also is shaped on electronic length gage mark (or signal) 11 in advance, 10 electronics are read chi device (system).Comprising 11 pre-electronic length metering signals (mark) on tape measure, 12 electronic lengths metering signal reads in device, 13 length metering signal processor, 14 length metering signals output booster, the digital indicator of 15 digital signal synergists, 40 electronic calculators, 41 electronic calculator electric band tape combined switches, 42 electronic calculators and 30 Flexible rule cases constitute.Counter combination motor digital band tape is except that possessing according to the described electronic digital band tape of claim 1. all its characteristics, and possesses the function that the function of electronic calculator and tape measure and electronic calculator make up.Its characteristics are:
2.1. reading in device 12, electronic length metering signal directly or by a digital signal synergist 15 is connected with length metering signal output booster 14 with (input) electronic calculator 40 through length metering signal processor 13.
2.2. be connected by electronic calculator electric band tape combined switch 41 between length metering signal output booster 14 or digital signal synergist 15 and (input) electronic calculator 40.
2.3. the power switch 4 of tape measure 7 is total with the power switch of electronic calculator 40.
3. according to the described electronic digital band tape of claim 1., can be simplified to electric band tape,
It is with gear or the driving motor of gear on worm speed reduction unit, 2 tape measure telescopic drive devices, comprising 2.1 driving shafts by 1,2.2 tape measure guide wheel or guide rail, 3 gauge tap, the 4th, power switch, 5 batteries, 6 tape measure manual and electric converters, comprising 6.1 driving shaft contact rollers, 6.2 having the tape measure and 30 Flexible rule cases of retraction spring, the curved support of driving shaft contact roller, the 6.3 tape measure manual and electric change-over switches, 7 that have cam or prominent arm constitute.The electric band tape of simplifying has only the function of the electric band tape part of electronic digital band tape.Its characteristics are:
3.1. on tape measure 7, do not have prefabricated electronic length gage mark (or signal) 11, have only the length identification marking of common tape measure.
4. according to the described electronic digital band tape of claim 1., also can be simplified to manual digital band tape,
It is to support pulley, the 4th by 2.2 tape measure guide wheels or guide rail, 2.3, and power switch, 5 batteries, 6.5 tape measure hand-operated rocker arms, 7.1 are shaped on electronic length gage mark (or signal) 11 in advance but do not have tape measure, 10 electronics of retraction spring to read chi device (system), comprising 11 pre-electronic length metering signals (mark) on tape measure, 12 electronic lengths metering signal reads in device, 13 length metering signal processor, 14 length metering signals output booster, 20 length digital indicators and 30 Flexible rule cases constitute.The digital band tape of simplifying has only the function of the digital band tape part of electronic digital band tape.
5. according to the described electronic digital band tape of claim 1., can also be simplified to the manual digital band tape that has electronic backrush device, it is the motor by the electronic backrush device of 1.1 tape measures, 1.2 the variator of the electronic backrush device of tape measure, 1.3 clutch driven wheel or clutch driven roller, 2.2 tape measure guide wheel or guide rail, 2.3 support pulley, 4 power switches, 5 batteries, 6.5 tape measure hand-operated rocker arm, 7.1 be shaped on electronic length gage mark (or signal) 11 in advance but do not have the tape measure of retraction spring, 7.3 have the tape measure bearing support of gear or running roller, 7.5 clutch follower gear or running roller, 7.6 and the operating key of gauge tap 4.1 interlocks (control knob or control lever), 10 electronics are read chi device (system), comprising 11 pre-electronic length metering signals (mark) on tape measure, 12 electronic lengths metering signal reads in device, 13 length metering signal processor, 14 length metering signals output booster, 20 length digital indicators and 30 Flexible rule cases constitute.The digital band tape of simplifying that has electronic backrush device also has electronic wrap function except that the repertoire that digital band tape is arranged.Its characteristics are:
5.1. clutch follower gear or running roller 7.5 by spring support with and the operating key (control knob or control lever) 7.6 of gauge tap 4.1 interlocks lean on mutually, and simultaneously from the side or end face and clutch driven wheel or clutch driven roller 1.3 adjacent with gear or running roller on the tape measure bearing support 7.3 with gear or running roller.
Can make the gear (or running roller) on clutch follower gear (or running roller) 7.5 while driven wheels of (or end face) interlock (or being close to) clutch from the side (or clutch driven roller) 1.3 and the tape measure bearing support 7.3 5.2. oppress or pull operating key (control knob or control lever) 7.6.
5.3. loosen or the operating key that resets (control knob or control lever) 7.6,7.5 of clutch follower gears (or running roller) break away from the gear (or running roller) on clutch driven wheel (or clutch driven roller) 1.3 and the tape measure bearing support 7.3 simultaneously.
6. according to the described electronic digital band tape of claim 1., it can be that a kind of raster pattern optical electron is read the chi device that its electronics is read chi device (system) 10.It is by 11 pre-optical electron length metering marks (or signal) on tape measure, the grating scale, the 12 optical lengths metering signal that are black and white or light and shade read in device, read in device comprising the 12a optical signal, 12c LASER Light Source, 13 digital length metering signal processor, 14 length metering signals output booster and 20 length digital indicators constitute.
7. according to the described electronic digital band tape of claim 1., it can be that a kind of optics digital-code type optical electron is read chi device 10.1 that its electronics is read chi device (system) 10.It is by 11.1 pre-optical electron length metering marks (or signal) on tape measure 7, be that the digital signal of optics digital calibration, 12.1 optics reads in device, read in device comprising the digital signal of 12a.1 optics, 12b.1 the positive and negative relatively signal of optics reads in device, 12c.1 LASER Light Source, 13 digital length metering signal processor, 14 length metering signals output booster and 20 length digital indicators constitute
8. it also can be that a kind of raster pattern clutch plate optical electron is read chi device 10.2 that electronic digital band tape according to claim 1, its electronics are read chi device (system) 10.It is by 11.2 pre-optical electron length metering marks (or signal) on the tape measure clutch plate, the grating scale, the 12 optical lengths metering signal that are black and white or light and shade read in device, read in device comprising the 12a optical signal, 12c LASER Light Source, 13 digital length metering signal processor, 14 length metering signals output booster and 20 length digital indicators constitute
9. according to the described electronic digital band tape of claim 1., it also can be that a kind of capacitance-grid type electronics is read chi device 10.3 that its electronics is read chi device (system) 10.It is by 11.3 pre-electronics length metering marks (or signal) on coating for band tape, and promptly electric capacity grid scale, 12.3 capacitance-grid type electronic lengths metering signal read in device, 12.3a holds grid digital quantizer, 13 digital length metering signal processor, 14 length metering signals output booster and 20 length digital indicators and constitutes
10. according to the described electronic digital band tape of claim 1., it can also be that a kind of capacitance-grid type clutch plate electronics is read chi device 10.4 that its electronics is read chi device (system) 10.It is by 11.4 pre-electronics length metering marks (or signal) on the tape measure clutch plate, and promptly annular capacitor grid scale, 12.3 capacitance-grid type electronic lengths metering signal read in device, 12.3a holds grid digital quantizer, 13 digital length metering signal processor, 14 length metering signals output booster and 20 length digital indicators and constitutes
11. it can also be that a kind of resistance bridge formula electronics is read chi device 10.5 that electronic digital band tape according to claim 1, its electronics are read chi device (system) 10.It is to be made of 7.5 high value metallic tapes, 11.5 tape measure resistance contact heads, 11.5a tape measure conductive traces, 12.5 resistance bridge digital quantizers, 13 digital length metering signal processor, 14 length metering signals output booster and 20 length digital indicators
12. according to the described electronic digital band tape of claim 1., it can also be that a kind of electromagnetic-type electronic is read chi device 10.6 that its electronics is read chi device (system) 10.It is by the 11.6 ferromagnetic materials electromagnetic-type electronic schoolmate degree gage mark (or signal) on tape measure 7 in advance, and promptly magnetic grid scale, 12.6 electromagnetic-type electronic length metering signals read in device, 12.6a electric signal amplifier, 13 digital length metering signal processor, 14 length metering signals output booster and 20 length digital indicators and constitute
13. according to the described electronic digital band tape of claim 1., it can also be that a kind of electromagnetic-type electronic is read chi device 10.7 that its electronics is read chi device (system) 10.It is by 11.7 on the ferromagnetic material coating on the tape measure 7 or ferromagnetic material tape measure 7 on the electromagnetic-type electronic schoolmate degree metering signal (mark) prerecorded, promptly magnetic signal, 12.6 electromagnetic-type electronic length metering signals read in device, 12.6a electric signal amplifier, 13 digital length metering signal processor, 14 length metering signals output booster and 20 length digital indicators and constitute
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19639374.4 | 1996-09-25 | ||
| DE19639374A DE19639374A1 (en) | 1996-09-25 | 1996-09-25 | Electric tape measure with digital display or combined with computer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1181496A true CN1181496A (en) | 1998-05-13 |
Family
ID=7806854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97106606A Pending CN1181496A (en) | 1996-09-25 | 1997-09-12 | Electric digital display band tape and band tape combined with electronic electronic calculator |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN1181496A (en) |
| DE (1) | DE19639374A1 (en) |
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| CN100460819C (en) * | 2006-12-26 | 2009-02-11 | 刘跃平 | Inductance type position transducer and band tape having same |
| CN100462665C (en) * | 2006-06-07 | 2009-02-18 | 宁波长城精工实业有限公司 | Electric band tape |
| CN102072695A (en) * | 2010-11-19 | 2011-05-25 | 哈尔滨工程大学 | Measuring device and measuring method for tree |
| CN103206905A (en) * | 2013-04-08 | 2013-07-17 | 常熟建工建设集团有限公司苏州分公司 | New type multi-functional tape measure |
| CN105953673A (en) * | 2016-06-25 | 2016-09-21 | 安徽工程大学机电学院 | Automatic measurement tape |
| US9874428B1 (en) | 2016-10-05 | 2018-01-23 | Milwaukee Electric Tool Corporation | Tape measure with compact retraction system |
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| CN109357579A (en) * | 2018-10-24 | 2019-02-19 | 严超 | A kind of digital display ruler |
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| US7284339B1 (en) * | 2006-03-28 | 2007-10-23 | Black & Decker Inc. | Simple controller for a power operated tape measure |
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-
1996
- 1996-09-25 DE DE19639374A patent/DE19639374A1/en not_active Withdrawn
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1997
- 1997-09-12 CN CN97106606A patent/CN1181496A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN100462665C (en) * | 2006-06-07 | 2009-02-18 | 宁波长城精工实业有限公司 | Electric band tape |
| CN100460819C (en) * | 2006-12-26 | 2009-02-11 | 刘跃平 | Inductance type position transducer and band tape having same |
| CN102072695A (en) * | 2010-11-19 | 2011-05-25 | 哈尔滨工程大学 | Measuring device and measuring method for tree |
| CN103206905A (en) * | 2013-04-08 | 2013-07-17 | 常熟建工建设集团有限公司苏州分公司 | New type multi-functional tape measure |
| US10054415B2 (en) | 2015-09-30 | 2018-08-21 | Milwaukee Electric Tool Corporation | Tape measure |
| US10767970B2 (en) | 2015-09-30 | 2020-09-08 | Milwaukee Electric Tool Corporation | Tape measure |
| CN105953673A (en) * | 2016-06-25 | 2016-09-21 | 安徽工程大学机电学院 | Automatic measurement tape |
| US9874428B1 (en) | 2016-10-05 | 2018-01-23 | Milwaukee Electric Tool Corporation | Tape measure with compact retraction system |
| US10132605B2 (en) | 2016-10-05 | 2018-11-20 | Milwaukee Electric Tool Corporation | Tape measure with compact retraction system |
| US11466970B2 (en) | 2016-10-05 | 2022-10-11 | Milwaukee Electric Tool Corporation | Tape measure with compact retraction system |
| US10458771B2 (en) | 2016-10-05 | 2019-10-29 | Milwaukee Electric Tool Corporation | Tape measure with compact retraction system |
| US10876825B2 (en) | 2016-10-05 | 2020-12-29 | Milwaukee Electric Tool Corporation | Tape measure with compact retraction system |
| US10836603B2 (en) | 2017-03-22 | 2020-11-17 | Milwaukee Electric Tool Corporation | Tape measure with epicyclic gear drive for tape retraction |
| US11427434B2 (en) | 2017-03-22 | 2022-08-30 | Milwaukee Electric Tool Corporation | Tape measure with epicyclic gear drive for tape retraction |
| CN109357579A (en) * | 2018-10-24 | 2019-02-19 | 严超 | A kind of digital display ruler |
| CN111102894A (en) * | 2019-12-31 | 2020-05-05 | 河南中鼎安装工程有限公司 | Multifunctional measuring tape |
| CN111102894B (en) * | 2019-12-31 | 2022-02-01 | 中鼎建安集团有限公司 | Multifunctional measuring tape |
Also Published As
| Publication number | Publication date |
|---|---|
| DE19639374A1 (en) | 1997-04-03 |
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