TWI621828B - Length measuring device and length measuring system - Google Patents

Abstract

The invention relates to a length measuring device and a length measuring device. The length measuring device of the present invention comprises: a housing; the first rotating portion is received in the housing, and a part of the surrounding portion is exposed to the outside of the housing, and is rotated in contact with the measuring object. The first detecting unit detects the amount of rotation of the first rotating unit, and the control unit converts the amount of rotation of the first rotating unit into a measured length. Further, the length measuring device of the present invention further includes: a second rotating portion that winds the rope a plurality of times, and rotates the second rotating portion as the rope is introduced to the outlet formed in the casing or the rope is taken out from the outlet And a second detecting unit that detects the amount of rotation of the second rotating unit, and the control unit converts the amount of rotation of the second rotating unit into a measured length.

Description

Length measuring device and length measuring system

The present invention relates to a length measuring device for measuring the size, length or width of an object, and more particularly to a length measuring device capable of measuring a linear length and a curved length of a measuring object, and a length measuring system using the same.

Usually, the tape measure is formed in the form of a belt, and the surface thereof is displayed with a scale for indicating the length, and thus is used for detecting the width and length of the prescribed space or for measuring the size, length or width of the measurement object.

Although the tape measure has various forms, the conventional tape measure includes a ruler, which is wound in a coil form and has a scale on the surface, and a casing having an internal space in which the storage ruler is formed, and a ruler for guiding the storage in the internal space. The introduction and exit of the entrance and exit, so that the user can long pull out the scale showing the scale, and for the end portion of the ruler and the portion displayed near the body, read the scale at the end of the measurement object, thereby measuring the object The length is measured.

However, the conventional tape measure is not a form in which the ruler is freely bent. Therefore, although the linear length of the measurement object can be measured, there is a problem that it is difficult to measure the circumference of the cylinder or the length of the curve.

Further, although the tape measure of the form in which the ruler is freely bent can measure the length of the straight line and the length of the curve, if the length to be measured is long, the ruler is bent, and thus the accurate length cannot be measured.

Also, the existing tape measure has a problem that the measurable length is limited to the length of the ruler.

Moreover, the existing tape measure is used as a structure for manually detecting the length, so that an error is generated by a person who reads the scale, and after the length is measured one by one, the measured value is input by a note or an additional typing process, so that there is a problem that the operation is cumbersome. .

Therefore, the technical problem to be solved by the present invention is to provide a length measuring device and a length measuring system using the same that can measure the linear length and the curved length of the measuring object.

A length measuring device according to an embodiment of the present invention includes: a housing; the first rotating portion is housed in the housing, and a part of the periphery is exposed to the outside of the housing, and is rotated in contact with the measuring object; the first detecting portion is used The amount of rotation of the first rotating portion is detected; and the control unit converts the amount of rotation of the first rotating portion into a measured length.

The length measuring device may further include: a second rotating portion that winds the rope a plurality of times, and the second rotating portion is performed by introducing the rope to the outlet formed at the housing or withdrawing the rope from the outlet Rotation; and a second detecting portion for detecting the amount of rotation of the second rotating portion.

The control unit may convert the amount of rotation of the first rotating unit into a measured length or convert the amount of rotation of the second rotating unit into a measured length.

The control unit can convert the amount of rotation of the second rotating unit into a measured length so as to gradually reduce the unit rotation amount of the second rotating unit into a conversion ratio of the length in a predetermined interval.

The length measuring device may further include: a second rotating portion that winds the rope a plurality of times by attaching one end of the rope until the other end of the rope exposed to the outside of the casing is caught in the shell Automatically rewinding the rope until the outlet of the body, and the third rotating portion rotates the third rotating portion by introducing the rope to the outlet formed in the casing or withdrawing the rope from the outlet; The second detecting unit is configured to detect the amount of rotation of the third rotating portion.

The control unit may convert the amount of rotation of the third rotating portion into a measured length.

The third rotating portion winds the rope once, and the rope can rotate the third rotating portion while the second rotating portion is disengaged.

The length measuring device may further include: a second rotating portion that sequentially winds the ropes along the rotating shaft a plurality of times in a non-overlapping manner, and the second rotation is performed along with the introduction or withdrawal of the rope The second detecting unit detects the amount of rotation of the second rotating unit, and the control unit converts the amount of rotation of the second rotating unit into a measured length.

The first rotating portion may include: a rotating shaft disposed to penetrate the housing; and a driving wheel disposed in the interior of the housing in contact with the rotating shaft to contact the surface of the measuring object The state is rotated and moved along the surface of the measurement object described above.

The length measuring device may further include a second rotating portion rotatably combined with the first rotating portion to cause the wound rope to be drawn to the outside of the casing at a length corresponding to the length of the measuring object. The rotating shaft may include: a first joint portion having a polygonal prism shape combined with the driving wheel; and a second joint portion of a cylindrical shape extending from an end portion of the first joint portion along an axial direction, and The second rotating portions are combined.

The second rotating portion may include a reel, and the reel is coupled to the second joint portion and driven separately independently of the rotating shaft, and the rope may be wound around the reel and measured to the shell The outer portion of the body pulls out the rope and rotates the drum.

The second rotating portion may further include a spool supporting bearing disposed between the spool and the second joint portion for supporting the spool.

The length measuring device may further include a second detecting unit configured to detect a rotation amount of the reel, the first detecting unit configured to detect a rotation amount of the driving wheel, and the control unit to drive the driving wheel The amount of rotation or the amount of rotation of the above reel is converted into a measurement length.

The length measuring device may further include: a third rotating portion that winds the rope once in the third rotating portion before ejecting the rope to the outside of the casing for a plurality of times; and The second detecting unit is configured to detect the amount of rotation of the third rotating unit, the first detecting unit is configured to detect the amount of rotation of the driving wheel, and the control unit is configured to rotate the driving wheel or the third rotating unit The amount is converted into the measured length.

A length measuring device according to still another embodiment of the present invention includes: a housing including an outlet for introducing or withdrawing a rope; a switch disposed on the housing; and a first rotating portion received in the housing, a portion of the surrounding portion facing the housing The outer portion is exposed and rotated in contact with the measuring object, and a first rotating gear is disposed at a center of the first rotating portion; and the second rotating portion winds the rope a plurality of times, with the introduction or extraction of the rope Rotating, a second rotating tooth is disposed at a center of the second rotating portion a third rotating gear connected to the switch, engaging with the first rotating gear or the second rotating gear according to a switching operation of the switch; and a detecting portion for detecting a rotation amount of the third rotating gear; The portion converts the amount of rotation of the third rotating gear into a measured length, and a display portion for displaying the measured length.

The detecting unit may be provided on a rotation axis of the third rotating gear.

When the switch is located at the first position, the third rotating gear is rotatable with the first rotating gear, and the detecting unit detects the amount of rotation of the first rotating portion. If the switch is located at the second position, The third rotating gear is rotatable with the second rotating gear to rotate, and the detecting unit detects the amount of rotation of the second rotating portion.

The length measuring device may further include a fourth rotating gear that meshes with the first rotating gear, and the fourth rotation is performed when the third rotating gear meshes with the second rotating gear according to the switching operation of the switch The gears mesh with the third rotating gear described above.

The length measuring device may further include a laser guiding portion that indicates a guide line on the measuring object.

The length measuring device may further include: a microphone unit for inputting a voice signal of the user; and a storage unit configured to map and store the input voice signal of the user and the measurement length.

The above length measuring device may further include a communication portion that transmits the above-described measured length to the outside.

The length measuring device may further include a non-contact measuring portion for generating a predetermined signal and receiving a signal reflected from the object to measure a distance from the object.

A length measuring system according to still another embodiment of the present invention includes: a length measuring device that receives a voice signal corresponding to a measured length input by a user, and marks and transmits the voice signal at the measured length; and receives the user terminal to receive And storing the measured length marked with the above voice signal.

The length measuring device has a gyro sensing portion to obtain angle information during measurement, and transmits the angle information together with the measured length to the user terminal, and the user terminal can use the measured length and the angle information during measurement. , automatically identify the measurement object.

According to the length measuring device and the measuring system using the same according to the embodiment of the present invention as described above, it is possible to have an advantage that the length of the tape can be accurately measured, and the length of the long straight line can be accurately measured, and even accurate. The ground is measured on the curve of the plane and the distance of the solid surface.

Moreover, there is also an advantage that the user does not confirm the length by the scale displayed on the tape measure, and since the measurement length is automatically displayed on the display portion, the length can be accurately measured even if the measurement conditions are different, thereby obtaining stable Measurement results.

Moreover, it has the advantage that since the communication unit is built in, the user can directly transmit the measurement length to the user terminal by simply clicking the button, so that the measured length can be recorded by handwriting or an additional typing process. The cumbersome problem.

At the same time, there is also an advantage in that when the measurement length is transmitted, the length measurement application set to the user terminal is automatically operated, so that various services can be provided to the user.

Further, according to the drawing of the rope of the length measuring device, the measurement length conversion can be accurately performed.

Further, by separately driving the first rotating portion and the second rotating portion separately, complicated measurement can be realized, and even if an abnormal phenomenon occurs in any of the first rotating portion or the second rotating portion, the remaining A rotating part measures the length of the measured object.

Further, since a plurality of through holes are formed in the casing, the drive wheels of the first rotating portion are exposed to the outside of the casing at a plurality of points, so that the measurement object can be freely gripped and measured in various ways during measurement. The length is measured.

Further, the surface of the drive wheel is subjected to a coating process to perform more accurate measurement by increasing the grounding force with the measurement object.

51, 52‧‧‧Measured objects

100‧‧‧ Length measuring device

110‧‧‧shell

111‧‧‧Export

113‧‧‧through holes

120‧‧‧Input and output

121‧‧‧Display Department

123‧‧‧ Button Department

125‧‧‧Speaker Department

127‧‧‧Microphone Department

130‧‧‧Rod Department

131‧‧‧ rope

132‧‧‧ hook

133‧‧‧ hook

140‧‧‧Non-contact measurement department

150‧‧‧Laser Guide

161‧‧‧First Rotation Department

161a‧‧‧First rotating shaft

161b‧‧‧First rotating gear

161a’, 161b’‧‧‧ drive wheels

1611‧‧‧Rotary axis

1611a‧‧ First Joint Department

1611b‧‧‧Second junction

1615‧‧‧Rotary shaft support bearing

1621‧‧ ‧ reel

1621a‧‧ Guidance Department

1623‧‧‧Reel support bearing

162‧‧‧Second Rotating Department

162a‧‧‧second axis of rotation

162b‧‧‧second rotating gear

163‧‧‧ Third Rotating Department

164‧‧‧First gear

165‧‧‧second gear

166‧‧‧ Tracks

167‧‧‧moving parts

167a‧‧‧ first hole

167b‧‧‧ second hole

167c‧‧‧ third hole

168‧‧‧Fixed rod

169‧‧‧Rotary rod

170‧‧‧ switch

172‧‧‧ Third rotating gear

180‧‧‧Detection Department

181‧‧‧First Inspection Department

182‧‧‧Second Inspection Department

190‧‧‧fourth rotating gear

191‧‧‧Control Department

193‧‧‧ Storage Department

195‧‧‧Communication Department

197‧‧‧Power Supply Department

199‧‧Gyro Sensing Department

200‧‧‧user terminal

210‧‧‧Guideline/Length Measurement Applications

220‧‧‧Guideline

1 is a schematic perspective view of a length measuring device according to an embodiment of the present invention.

Fig. 2 is a view showing electronic components of a length measuring device according to an embodiment of the present invention.

Fig. 3 is a view showing the internal arrangement relationship of the main components of the main component of the length measuring device according to the first embodiment of the present invention.

4 is a view showing an example of displaying a guide line before and after a length measuring device according to an embodiment of the present invention.

Fig. 5 is a view showing a state in which a rope is wound around a length measuring device according to a first embodiment of the present invention.

Fig. 6 is a view showing an internal configuration of main components of a length measuring device according to a second embodiment of the present invention.

Fig. 7 is a view showing a state in which a rope is wound around a length measuring device according to a second embodiment of the present invention.

Fig. 8 is a view showing a state in which a rope is wound around a length measuring device according to a third embodiment of the present invention.

9 is a view showing an example of a method of measuring a linear length of a measurement object according to an embodiment of the present invention.

Fig. 10 is a view showing an example of a method of measuring a curve length of a measurement object according to an embodiment of the present invention.

Fig. 11 is a view showing the configuration of a length measuring system according to an embodiment of the present invention.

Figure 12 is a schematic perspective view of a length measuring device according to still another embodiment of the present invention.

Fig. 13 is a view showing electronic components of a length measuring device according to still another embodiment of the present invention.

Fig. 14 is a view showing the internal arrangement relationship of the main components of the main components of the length measuring device according to the fourth embodiment of the present invention.

15 and FIG. 16 are views showing the internal arrangement relationship of the main components of the main components of the length measuring device according to the fifth embodiment of the present invention.

17 and 18 are schematic perspective views of a length measuring device according to still another embodiment of the present invention.

19 and FIG. 20 are views showing the internal arrangement relationship of the main components of the main component of the length measuring device according to the sixth embodiment of the present invention.

Fig. 21 is a view showing the internal arrangement relationship of the main components of the main component of the length measuring device according to the seventh embodiment of the present invention.

The embodiments of the present invention are described in detail below with reference to the accompanying drawings, in which FIG.

1 is a schematic perspective view of a length measuring device according to an embodiment of the present invention.

Referring to FIG. 1, the length measuring device 100 of the present invention may include a cord portion 130 formed of a string 131 and a hook portion 132. The length measuring device 100 can convert the degree of the cord 131 wound around the inside of the casing 110 through the outlet 111 into a measured length. For example, when the user pulls the hook portion 132 connected to one end of the rope 131 in the opposite direction of the outlet 111, the rope 131 is taken out through the outlet 111 and the internal rotating body (not shown) is rotated, and according to the rotation The amount of rotation of the body, the measured length will increase accordingly. Conversely, if the user releases the hook portion 132, the rope 131 is automatically rewinded and the above-described string 131 is introduced into the inside of the casing 110 through the outlet port 111, whereby the measurement length is reduced. The rotating body can be realized in such a manner as to have a restoring force in the opposite direction to the direction in which the rope 131 is drawn, so that the rope is automatically rewinded. Moreover, in order to prevent the cord 131 from completely entering the inside of the housing 110, it is preferable to form a portion of the hook portion 132 into a vertically curved hook shape such as "┐" or "┬" so that the hook portion 132 is caught in the lead. Exit 111.

Hereinafter, a method in which the cord 131 is wound around the inside of the casing 110 and a method of extracting the cord 131 through the outlet 111 into a measured length will be described in detail.

The length measuring device 100 can also calculate the measured length based on the amount of rotation of the first rotating portion 161 that is partially exposed to the outside of the casing 110. For example, when the first rotating portion 161 is brought into contact with the measurement object and the length measuring device 100 is pushed or pulled in one direction, the measurement length is increased so that the first rotating portion 161 rotates.

On the other hand, although a state in which a part of the first rotating portion 161 is exposed is shown in FIG. 1, the entire first rotating portion 161 may be exposed to the outside of the casing 110 according to the embodiment.

According to the embodiment, the first rotating portion 161 may be integrated or combined with the rotating body that winds the rope, and according to another embodiment, the first rotating portion 161 is also capable of operating separately from the rotating body. Hereinafter, the configuration and operational relationship between the first rotating portion 161 and the rotating body will be described in detail.

The length measuring device 100 may include a laser guiding portion 150 that can indicate a guiding line to a measured object object by irradiating light such as a laser. Although only one laser guiding portion 150 is shown in FIG. 1, according to the embodiment, the above-described laser guiding portion 150 may be additionally provided on the opposite side of the casing 110 with the first rotating portion 161 as a reference.

The length measuring device 100 may further include a function of generating laser, infrared or ultrasonic waves or the like at the non-contact measuring portion 140, and calculating the measured length based on the time of reflection.

The length measuring device 100 may include a display portion 121 for visually displaying the measured length.

The length measuring device 100 may further include a button portion 123 that receives an instruction input by the user regarding the action of the length measuring device 100. In addition to being realized by a mechanical structure, the button portion 123 such as a touch panel or the like can be realized in such a manner as to detect a corresponding portion that the user touches with a finger or the like.

2 is a view showing an electronic component of a length measuring device according to an embodiment of the present invention, and FIG. 3 is a view showing an internal arrangement relationship of main components of main components of the length measuring device according to the first embodiment of the present invention.

1 to 3, the length measuring device 100 may include a housing 110, an input/output portion 120, a cord portion 130, a non-contact measuring portion 140, a laser guiding portion 150, a first rotating portion 161, a second rotating portion 162, The detecting unit 180, the control unit 191, the storage unit 193, the communication unit 195, the power supply unit 197, and the gyro sensing unit 199.

The casing 110 performs a function of housing and protecting the respective components of the length measuring device 100, and the casing 110 may include an outlet 111 through which the string 131 can be drawn to the outside. According to an embodiment, the design of the housing 110 may vary slightly.

The input/output unit 120 can function to receive an instruction related to the operation of the length measuring device 100 input by the user or to output information related to the operation of the length measuring device 100 to the user.

Specifically, the input/output unit 120 may include all or some of the display unit 121, the button unit 123, the speaker unit 125, and the microphone unit 127.

The display unit 121 functions to visually display information related to the operation of the length measuring device 100, and for this purpose, it can be a light emitting diode (LED), a liquid crystal display (LCD), or an organic light emitting device. A display module such as a diode (OLED) is implemented. Specifically, the display portion 121 can display the measurement length measured by the length measuring device 100, and can also display information about the current operation mode.

The button portion 123 can receive an instruction for setting an operation mode of the length measuring device 100 input by a user. For example, a plurality of modes may be selected, that is, if the user presses the button portion 123 once, the length measurement mode based on the string 131 (hereinafter referred to as the rope measurement mode) can be realized, and if pressed twice, the first method can be realized. The length measurement mode (hereinafter referred to as the wheel measurement mode) of the amount of rotation of the rotating portion 161, when pressed three times, realizes the length measurement mode (hereinafter referred to as the non-contact measurement mode) by the non-contact measurement unit 140. Of course, in addition to the above examples, the button portion 123 may be caused to receive various instructions related to the action of the length measuring device 100 input by the user, according to an embodiment.

On the other hand, an instruction input by a user can also be received by the first rotating portion 161. For example, when the button portion 123 is pressed, the initial function table is displayed on the display portion 121, and the user can select the lower-level function table by rotating the first rotating portion 161. When the button portion 123 is pressed once, one of the three types of length measurement modes is displayed, and the control unit 191 can change the length measurement mode displayed on the display unit 121 in accordance with the operation of the user rotating the first rotating unit 161. Next, in a state where the display unit 121 displays the specific length measurement mode, if the user presses the button portion 123 again, the mode is selected, and the length measuring device 100 can operate in the selected mode. Of course, in addition to the above description, it is also possible to receive a user instruction corresponding to the above operation if the user selectively operates the button portion 123 and the first rotating portion 161.

Although an example in which the button forming the button portion 123 is disposed at the central portion of the casing 110 is shown in FIG. 1, the above-described button portion 123 may be disposed at other positions. Further, it can be realized in other ways than the button form, for example, the button portion 123 is replaced with a touch module or a mechanical switch that can detect a touch or the like based on a user's finger. Further, the button portion 123 can be realized in a keyboard form including a plurality of character keys, digit keys, or function keys.

The speaker unit 125 functions to output information related to the operation of the length measuring device 100 in a voice form. Specifically, the display section 121 can also output the measurement length measured by the length measuring device 100 or the information about the current operation mode in a voice form.

The microphone section 127 can function to receive various instructions or information related to the motion of the length measuring apparatus 100 from the user in a voice form.

The cord portion 130 may be formed by the cord 131 and the hook portion 132.

The string 131 can be realized in various forms such as a line form, a belt form, or a tape form.

The cord 131 can be wound a plurality of times in the second rotating portion 162 so that one end thereof is attached to the second rotating portion 162, and can be taken out to the outside through the outlet 111 formed in the casing 110. When the user pulls the hook portion 132 connected to the other end of the cord 131 in the opposite direction (direction A in FIG. 3) of the outlet 111, the second rotating portion 162 is rotated and the above-mentioned outlet 111 is used to take out the above-described hook portion 132. Rope 131.

The non-contact measuring unit 140 can generate laser light, infrared rays, ultrasonic waves, or the like, and receives the reflected signal. Thereby, the distance from the length measuring device 100 to the spaced apart measuring objects can be measured distally.

The laser guiding portion 150 can display the guide line in such a manner as to irradiate the measuring object with a laser. As shown in FIG. 2, when the laser guiding portion 150 is disposed on both sides with the first rotating portion 161 as a center, as shown in FIG. 4, the guide lines 210, 220 can be displayed to the front and rear of the length measuring device 100. The length measuring device 100 is moved along the guide lines 210, 220 so that accurate length measurement can be achieved.

The first rotating portion 161 is partially or entirely exposed to the outside of the casing 110 so as to be rotatable in the C direction or the D direction in a state of being in contact with the object to be measured. For example, when the user grips the casing 110 and moves in the direction A, the first rotating portion 161 that is in contact with the measuring object is rotated in the C direction. Conversely, when the user moves the length measuring device 100 in the B direction, the first rotating portion 161 is rotated in the D direction.

When the cord 131 is pulled out, the second rotating portion 162 is rotated in the corresponding direction. Since the length measuring device 100 of the present invention is provided with an elastic member (not shown) such as a tension spring or a spring, it is along the blocking rope 131. The direction of the lead can be resilience. Thus, when the user releases the hook portion 132 after the length measurement is completed, the second rotating portion 162 is rotated in the B direction, and the string 131 is introduced into the inside by rewinding.

The detecting portion 180 may include a first detecting portion 181 and a second detecting portion 182.

The first detecting portion 181 and the second detecting portion 182 may be realized by a rotation sensor such as a potentiometer sensor, a rotary encorder, or the like, the first detecting portion 181 and the second detecting portion 182 The amount of rotation of the first rotating portion 161 and the second rotating portion 162 can be detected separately. To this end, the first detecting portion 181 and the second detecting portion 182 may be provided on the rotation axes of the first rotating portion 161 and the second rotating portion 162, respectively.

The storage unit 193 is for recording various kinds of information, materials, and programs related to the operation of the length measuring device 100, and can provide the above various information, materials, and programs according to the request of the control unit 191.

The communication unit 195 can support the exchange of various information and materials between the length measuring device 100 and the external device by wired or wireless communication. The wired communication method includes a communication method using a universal serial bus (USB, Universal Serial Bus) cable, and the wireless communication method may include a wireless fidelity (Wi-Fi), a blue tooth, and a zigbee protocol. Infrared communication (IrDA, Infrared Data Association), UWB (Ultra Wide Band) or Radio Frequency Identification (RFID), Near Field Communication (NFC) and other short-range communication methods or the third generation ( 3G, 3rd Generation), fourth generation (4G, 4th Generation) or long-term evolution technology (LTE, Long Term Evolution) and other mobile communication methods.

The power supply unit 197 can function as a power source required to supply the operation of each component of the length measuring device 100, and can be realized by a battery.

The gyro sensing unit 199 can function to measure the posture, the movement trajectory, and the like of the length measuring device 100.

The control unit 191 controls the overall operation of the length measuring device 100. Specifically, in the case of the rope measurement mode, the control unit 191 can convert the degree of extraction of the string 131 into the measured length. Further, in the case of the wheel measurement mode, the control unit 191 can convert the amount of rotation of the first rotating unit 161 into a measurement length, and in the case of the non-contact measurement mode, generate laser, infrared or ultrasonic waves in the non-contact measurement unit 140. The control unit 191 can convert the time of re-collection and the like into a measurement length.

The control unit 191 can display the measurement length through the display unit 121 or output it in a voice form through the speaker unit 125. Further, the control unit 191 can also transmit the measurement length to the external device via the communication unit 195.

The control unit 191 can also record the measurement length in the storage unit 193. When the measurement length is stored, the control unit 191 can also assign a tag to the voice information input to the user via the microphone unit 127. The words of the specific measurement object are applied to the measurement length in the form of a label, so that the measurement length of the corresponding measurement object can be easily confirmed in the future, and it is easy to manage a plurality of length measurement materials.

Preferably, the control unit 191 automatically converts the label information input by the user in the form of a voice into a character by using a voice text recognition program, and stores the label in the measurement length. Save. On the other hand, the control unit 191 can also transmit the tag information of the measurement length and the corresponding measurement length together with the external device. Of course, it is also possible to store the tag information in the form of voice, and to convert the tag information into characters on an external device.

Fig. 5 is a view showing a state in which a rope is wound around a length measuring device according to a first embodiment of the present invention.

As shown in FIG. 5, the string 131 is laminated on the second rotating portion 162 in a plurality of windings. Further, each time the second rotating portion 162 is rotated, the length of the untwisted string 131 is gradually shortened.

Assuming that the diameter d _coil of the second rotating portion 162 is 32 mm and the thickness t of the string 131 is 2 mm, the converted diameter d' _coil of the thickness of the cord 131 wound when the cord 131 is wound n times in the second rotating portion 162 is considered. And the conversion around l is as shown in Table 1 below. Table 1 shows the rope 131 wound 15 times.

In FIG. 5, the length b is the length of a portion showing the unwound second rotating portion 162 of the string 131 in the initial state in which the hook portion 132 is caught in the outlet port 111.

The length f of the lead wire 131 to the outside of the outlet 111, the cumulative rotation angle j of the second rotating portion 162, and the length rotation conversion rate k are calculated so as to reflect the length b. The calculation results are shown in Table 2 below. Among them, it is calculated by the formula k=f/h. In Table 2, it is assumed that the length b is 50 mm.

The number (i=1) is divided into two parts. The portion having a length f _i of 50 mm corresponds to a portion where the cord 131 is not wound around the second rotating portion 162 in the initial state, and a portion having a length f _i of 289.0 mm corresponds to a portion where the unwinding cord 131 is wound around the outermost portion (Table 1 corresponds to the number of windings 15). Therefore, if the string 131 is unwound to the portion wound around the outermost portion in the initial state, the cumulative rotation angle j _i of the second rotating portion 162 is 422.3°. Further, the second rotating portion 162 is rotated by 1° to draw a rope 131 of 0.803 mm.

Next, as shown in Table 2, the conversion rate k _{i is} stepwise decreased from the section corresponding to the number (i=2) to the section corresponding to the number (i=15), and is as shown in the following Mathematical Formula 1. The amount of rotation of the second rotating portion 162 can be converted into a measured length.

As described above, the section corresponding to the number (i = 1) is divided into two sections, so that f ₁ = 339.0 mm (= 50 mm + 289.0 mm) and j ₁ = 422.3 ° are used, and the following mathematical formula 1 is used. , the measured length (f _final ) can be accurately calculated.

Here, A is the amount of rotation of the second rotating portion 162 measured by the second detecting portion 182. For example, the wheel measurement mode is set such that the second rotating portion 162 rotates in a state of being in contact with the measurement object until the total rotation amount measured when the measurement operation is stopped.

Fig. 6 is a view showing an internal configuration of main components of a length measuring device according to a second embodiment of the present invention, and Fig. 7 is a view showing a state in which a length measuring device winds a rope according to a second embodiment of the present invention.

According to the second embodiment, as explained by the mathematical expression 1, the length measurement according to the introduction or withdrawal of the string 131 can be accurately realized without complicated calculation.

The electronic component of the length measuring device of the second embodiment may have the same structural elements as the length measuring device of the first embodiment. However, the length measuring device of the second embodiment is additionally provided with the third rotating portion 163, and the second detecting portion 182 can be provided to the rotating shaft of the third rotating portion 163 so that the amount of rotation of the third rotating portion 163 can be measured.

After the second rotating portion 162 is wound a plurality of times so that one end is attached to the second rotating portion 162, the string 131 is wound once in the third rotating portion 163. Therefore, when the hook portion 132 connected to the other end of the string 131 is pulled out, the second rotating portion 162 and the third rotating portion 163 can be rotated together, and the string 131 can be drawn out to the outside of the casing 110 through the outlet port 111.

As described above, since the second rotating portion 162 is laminated and wound with the cord 131, the length of the second rotating portion 162 is shortened every time the second rotating portion 162 is rotated. Contrary to this, the length of the drawn cord 131 is the same every time the third rotating portion 163 is rotated once.

Therefore, the second detecting unit 182 detects the amount of rotation of the third rotating portion 163 instead of detecting the amount of rotation of the second rotating portion 162, and if the measured length is calculated by scaling the detected amount of rotation, it is not necessary to perform such as mathematics. The complex calculation of Equation 1.

Fig. 8 is a view showing a state in which a rope is wound around a length measuring device according to a third embodiment of the present invention.

The electronic component of the length measuring device of the third embodiment may have the same structural elements as the length measuring device of the first embodiment. However, the structure of the second rotating portion 162 in the first embodiment can be changed to the structure shown in Fig. 8 to realize the length measuring device of the third embodiment.

In the third embodiment, the second rotating portion 162 can be realized in a bobbin form in which the ropes 131 are sequentially wound a plurality of times without overlapping the rotation axis. Of course, after the string 131 is pulled out, in order to automatically rewind the rope 131, the second rotating portion 162 has a restoring force in a direction opposite to the direction in which the cord 131 is drawn.

The length measuring device of the third embodiment may further include a first gear 164, a second gear 165, a crawler belt 166, a moving member 167, a fixing rod 168, and a rotating rod 169 to enable the rope 131 to follow the second in a non-overlapping manner The rotation shaft of the rotating portion 162 is sequentially wound around the second rotating portion 162 or unwound from the second rotating portion 162.

Since the first gear 164 is provided on the rotation shaft of the second rotating portion 162, when the second rotating portion 162 rotates, it rotates together with the second rotating portion 162.

The second gear 165 is coupled to the first gear 164 via the crawler belt 166 and is disposed on the rotating shaft of the rotating lever 169. When the first gear 164 rotates, the second gear 165 rotates together with the first gear 164 described above, and rotates the rotating lever 169.

A thread is formed around the rotating rod 169, and rotates as the second gear 165 rotates.

The rotation axis of the rotation lever 169 has a direction parallel to the rotation axis of the second rotation portion 162.

The moving member 167 may have a first hole 167a through which the rotating rod 169 passes, a second hole 167b through which the fixing rod 168 passes, and a third hole 167c through which the string 131 passes.

The first hole 167a may have a thread that meshes with a thread formed on the rotating rod 169. When the rotating lever 169 rotates, the screw thread formed in the first hole 167a functions to move the moving member 167 in the rotation axis direction of the rotating lever 169.

The second hole 167b functions to guide the moving member 167 to move stably along the rotating lever 169 without shaking. Although the second hole 167b is formed on both sides of the first hole 167a in FIG. 8, according to the embodiment, the second hole 167b may be formed only on one side of the first hole 167a.

The moving member 167 moves in accordance with the rotation of the rotating lever 169, and functions to guide the rope 131 to be sequentially wound around the rotating shaft of the second rotating portion 162. The moving member 167 may have a mechanism of a roller or the like to enable the cord 131 to be introduced into or drawn out from the third hole 167c in a manner that does not generate friction.

According to the gear ratio of the first gear 164 and the second gear 165, when the second rotating portion 162 is rotated once, the degree of movement of the moving member 167 along the rotating lever 169 is different, and therefore, the first gear can be selected as follows. The gear ratio of the 164 to the second gear 165, that is, the moving member 167 is moved in accordance with the rotation of the rotating lever 169, and the guide ropes 131 are sequentially wound around the second rotating portion 162 in a non-overlapping manner.

9 is a view showing an example of a method of measuring a linear length of a measurement object according to an embodiment of the present invention.

Referring to Fig. 9, after the user fixes the hook portion 132 to the corner of the measuring object 51, the housing 110 is pulled down in a state where the housing 110 is held by hand, whereby the rope can be wound with the rope being taken out. The internal rotating body is rotated, and the linear length of the measuring object 51 is measured by detecting the amount of rotation of the rotating body. Of course, in addition to this, the string 131 can be taken out in a variety of ways and the length of the measured object can be measured.

Fig. 10 is a view showing an example of a method of measuring a curve length of a measurement object according to an embodiment of the present invention.

Referring to Fig. 10, the cord 131 is introduced into the inside of the casing 110, and the hook portion 133 is caught in the state of the outlet port 111, and the casing 110 is gripped, from the starting position to the end position of the measuring object 52, so that the first A part of the periphery of the rotating portion 161 is in contact with, and the housing 110 is pushed or pulled, whereby the first rotating portion 161 is rotated, and the length of the curve can be measured by detecting the degree of rotation. As shown in Fig. 10, there is an advantage that the length of the curve can also be accurately measured in the case where the measuring object 52 is recessed inward.

Fig. 11 is a view showing the configuration of a length measuring system according to an embodiment of the present invention.

Referring to Fig. 11, a length measuring system according to an embodiment of the present invention includes a length measuring device 100 and a user terminal 200. The length measuring device 100 can utilize the devices of the various embodiments described above.

The user terminal 200 can have a storage device and is loaded by a personal computer (PC), a smart phone, a tablet PC, a personal digital assistant (PDA), or a web pad (Web Pad). The microprocessor is formed by a terminal having a mobile communication function with computing power, and a plurality of applications can be provided to a user by installing a plurality of applications.

In particular, the human terminal 200 of an embodiment of the present invention may be installed with a length measuring application 210 that automatically operates according to a user signal transmitted from the length measuring device 100 and receives the measured length. The received measurement length can be automatically entered or stored in the length measurement application 210.

For example, if the user requests to transmit the measurement length to the user terminal 200 by the input/output unit 120 provided in the length measuring device 100, the length measuring application 210 of the user terminal 200 is automatically operated, and the length measuring application 210 is made displayable. A plurality of storage units measuring the length, and the storage unit having the measured length input can be selectively transmitted to the user. Also, when the input/output portion 120 of the length measuring device 100 is formed of a plurality of buttons, each button is used as a hot key so that the measurement length can be automatically input to the length measuring application 210 or corresponding to the length measuring application 210. Storage unit.

Moreover, when the length measuring device 100 includes the gyro sensing portion 199 for detecting the measuring angle of the measuring object, the user terminal 200 receives the measuring angle measured at the gyro sensing portion 199 from the length measuring device 100 together with the measured length, according to The measurement angle automatically inputs the measurement length into the length measurement application 210. At this time, the straight line and the curve can be automatically recognized by the measurement angle of the measurement object measured at the gyro sensing portion 199.

For example, when it is necessary to measure the body value of the user, if it is transmitted to the user terminal 200 by measuring the neck circumference of the user by the length measuring device 100, the length measuring application 210 can be run and displayed as a user for measurement. The screen of the body value is used to measure the length of the leg, the neck circumference, the shoulder width of the user, and a plurality of storage units for inputting the measured length, according to the measurement angle measured at the gyro sensing portion 199 (leveling direction) Automatically measure the value of the neck circumference in the user's body, and automatically enter the value of the neck circumference in the corresponding storage unit for display or storage. Moreover, if the leg length of the user is measured by the length measuring device 100, the value of the leg length in the body of the user can be automatically measured according to the measurement angle (vertical direction) measured at the gyro sensing portion 199, and the leg length is long. The values are automatically entered in the corresponding storage unit for display or storage. On the other hand, the measured length value and the angle information at the time of the length measurement (the movement trajectory information of the length measuring device 100, etc.) are stored together, so that not only the length information of the measuring object but also the surrounding shape information can be obtained.

Moreover, the measurement length is automatically input to the length measurement application 210 based on the voice signal of the user input at the microphone unit 127. That is, the measurement length can be automatically input to the corresponding storage unit among the plurality of storage units for display or storage according to the voice signal of the user. After the length measuring device 100 completes the measurement, if the user presses the button portion 123 provided on the length measuring device 100 to select the transmission, the content of the corresponding value to which the corresponding measurement length belongs can be marked with the voice signal of the user. label. For example, when the measurement length is transmitted to the user terminal 200, if the voice signal of the user who is the "waist" is transmitted together, the length measurement application 210 can recognize the waist using the voice recognition program and automatically to the storage unit corresponding to the waist. Enter the measurement length to complete the storage.

On the other hand, the length measuring device 100 may further include components such as a GPS transmitting and receiving unit or a pressure detecting unit (not shown). For example, the GPS transceiver receives the location information about the measured location and stores it in the storage unit 193 or transmits it to the user terminal 200, so that the user can confirm the measurement location information together with the measured length.

Figure 12 is a schematic perspective view of a length measuring device according to still another embodiment of the present invention, Figure 13 is a view showing electronic components of a length measuring device according to still another embodiment of the present invention, and Figure 14 is a view showing a fourth embodiment of the present invention. A diagram of the internal arrangement relationship of the main components of the length measuring device.

The length measuring device of the fourth embodiment shown in FIGS. 12 to 14 has most of the structural elements of the length measuring device shown in FIGS. 1 to 3. Structural elements having the same functions as those of the length measuring device shown in FIGS. 1 to 3 are given the same reference numerals and are described in The contents of FIGS. 1 to 3 are replaced with specific descriptions of the same constituent elements, and the constituent elements of the differences will be described here.

The length measuring device 100 of the fourth embodiment of the present invention may further include a switch 170 for receiving an action mode setting command of the length measuring device 100 input by a user. For example, if the user pushes the switch 170 upward, the length measurement mode based on the string 131 (hereinafter referred to as the rope measurement mode) may be selected, and if the user pushes the switch 170 downward, the amount of rotation based on the first rotating portion 161 may be selected. The length measurement mode (hereinafter referred to as the wheel measurement mode). Hereinafter, a method of setting an operation mode according to the position of the switch 170 will be described in detail.

The switch 170 may be disposed in the housing 110 and moved to the first position P ₁ or the second position P ₂ according to the switching operation. For example, if the user moves the switch 170 to the first position P ₁ (push down), a length measurement mode (hereinafter referred to as a wheel measurement mode) based on the amount of rotation of the first rotating portion 161 may be selected, if the user will When the switch 170 is moved to the second position P ₂ (push up), a length measurement mode (hereinafter referred to as a rope measurement mode) or the like based on the amount of rotation of the second rotating portion 162 can be selected. In addition to this, the switch 170 can be formed by a toggle switch or the like that performs a switching operation in an open or closed state.

The first rotating portion 161 is partially or entirely exposed to the outside of the casing 110, and is rotated in the C direction or the D direction while being in contact with the object to be measured. For example, when the user moves the casing 110 in the A direction by gripping, the first rotating portion 161 that is in contact with the measured object is rotated in the C direction. Conversely, when the user moves the length measuring device 100 in the B direction, the first rotating portion 161 is rotated in the D direction.

A first rotating shaft 161a may be formed at a center of the first rotating portion 161, and a first rotating gear 161b that rotationally moves the first rotating shaft 161a as a center may be disposed.

When the cord 131 is pulled out, the second rotating portion 162 is rotated in the corresponding direction, and since an elastic member (not shown) such as a tension spring or a spring is provided, the direction in which the cord 131 is prevented from being pulled out has a restoring force. Thereby, after the length measurement is completed, if the user releases the hook portion 132, the second rotating portion 162B can be rotated in the direction, and the cord 131 can be introduced into the inside in a rewinding manner.

A second rotating shaft 162a may be formed at the center of the second rotating portion 162, and a second rotating gear 162b that rotationally moves the second rotating shaft 162a as a center may be disposed.

The third rotating gear 172 is connectable to the switch 170 to mesh with the first rotating gear 161b or the second rotating gear 162b according to the switching operation of the switch 170. If the switch 170 is at the first position P ₁ , the third rotating gear 172 can mesh with the first rotating gear 161 b and rotate, and if the switch 170 is at the second position P ₂ , can engage with the second rotating gear 162 b and perform Rotate.

The detecting portion 180 can be realized by a rotation sensor such as a potentiometer sensor or a rotary encorder, and the detecting portion 180 can detect the amount of rotation of the third rotating gear 172. To this end, the detecting portion 180 may be disposed on a rotating shaft of the third rotating gear 172.

More specifically, when the switch 170 is at the first position P ₁ , the third rotating gear 172 is meshed with the first rotating gear 161 b and rotated, and the detecting unit 180 detects the amount of rotation of the first rotating portion 161 , and if the switch When the 170 is at the second position P ₂ , the third rotating gear 172 meshes with the second rotating gear 162b and rotates, and the detecting unit 180 detects the amount of rotation of the second rotating portion 162.

The control unit 191 controls the overall operation of the length measuring device 100. Specifically, the control unit 191 can convert the amount of rotation of the third rotating gear 172 into a measured length.

Although the electrical connection of the control unit 191 and the switch 170 is not shown in the drawing, the control unit 191 can perform an operation mode according to the position of the switch 170 by recognizing the position (the first position or the second position) of the switch 170. For example, when the switch 170 moves to the first position P ₁ , the control unit 191 recognizes the above position and operates in the length measurement mode (hereinafter referred to as the wheel measurement mode) based on the amount of rotation of the first rotating unit 161. When the movement to the second position P ₂ is made, the control unit 191 recognizes the above position and operates in the length measurement mode (hereinafter referred to as the rope measurement mode) based on the amount of rotation of the second rotation unit 162.

In the case of the rope measurement mode, the control unit 191 can detect the amount of rotation of the second rotating portion 162 by using the detecting portion 180 provided on the rotating shaft of the third rotating gear 172 that meshes with the second rotating gear 162b (ie, The amount of rotation of the third rotating gear 172 is converted to the measured length of the rope 131. Further, in the case of the wheel measurement mode, the control unit 191 can use the detection unit 180 provided on the rotation axis of the third rotation gear 172 that meshes with the first rotation gear 161b to rotate the first rotation unit 161 (ie, The rotation amount of the third rotation gear 172 is converted into the measurement length. In the non-contact measurement mode, the non-contact measurement unit 140 generates laser light, infrared rays, ultrasonic waves, or the like, and converts the time of re-acceptance into the measurement length. .

15 and FIG. 16 are views showing the internal arrangement relationship of the main components of the main components of the length measuring device according to the fifth embodiment of the present invention.

Referring to FIGS. 15 and 16, the length measuring device 100 of the fifth embodiment may further include a fourth rotating gear 190 that meshes with the first rotating gear 161b, compared to the length measuring device of the fourth embodiment.

15, if the switch 170 is in the first position P ₁ (wheel rotation measurement mode), will enable the rotation of the fourth gear 190 and the rotation of the third gear 172 meshed with the first rotating gear 161b. In this case, the second rotating gear 162b is separated from the other rotating gears, and therefore the first rotating portion 161 is not affected even if it is rotated.

On the other hand, as shown in FIG. 16, if the switch 170 is located at the second position P ₂ (selecting the rope measuring mode), the fourth rotating gear 190 can be meshed with the first rotating gear 161b, and meshed with the first The third rotating gear 172 is engaged by the two rotating gears 162b. Thereby, in the rope measuring mode, the first rotating gear 161b, the second rotating gear 162b, the third rotating gear 172, and the fourth rotating gear 190 can be rotated in linkage.

Further, the length measuring device 100 further has a hook insertion groove (not shown) into which the hook portion 132 can be inserted. For example, when the user runs the length measuring device 100 in the rope measuring mode to measure the waist circumference, the user can arbitrarily take out the string 131 corresponding to the waist circumference, and then the drawn rope 131 is surrounded along the waist circumference, and the hook portion 132 is opened. The waist circumference is measured by inserting it into the hook insertion groove. At this time, the cord 131 is in a state of being arbitrarily taken out by the user, and thus an error occurs in length, and in order to reduce such an error, it is necessary to maintain the rope 131 in a straightened state along the waistline. Therefore, when the user rotates the first rotating portion 161 in a direction opposite to the direction in which the rope 131 is pulled out, the fourth rotating gear 190 is rotated in accordance with the rotation of the first rotating gear 161b. The third rotating gear 172 and the second rotating gear 162b are rotated in opposite directions in a sequential manner to introduce the rope 131 into the inside of the casing 110, thereby causing the rope 131 to tightly surround the waistline.

As described above, since the length is measured in a state where the string 131 is tightly wrapped around the waist, the waist circumference can be accurately measured.

On the other hand, as shown in FIG. 5, in the length measuring apparatus according to the fourth embodiment and the fifth embodiment of the present invention, the cord 131 is also stacked on the second rotating portion 162 so as to be wound a plurality of times. Each time the two rotating portions 162 rotate once, the length of the untwisted string 131 is gradually shortened. In consideration of such a phenomenon, the same algorithm as in Mathematical Formula 1 is applied so that the unit rotation amount is converted into the conversion ratio of the length. The preset interval is reduced stepwise. And, as shown in FIG. 6, the length measuring device of the present invention further has a third The rotating portion 163 converts the amount of rotation of the third rotating portion 163 into the measured length instead of converting the amount of rotation of the second rotating portion 162, and realizes the second rotating portion 162 in a configuration as shown in FIG. The complex calculations of Mathematical Formula 1 also enable measurement.

17 and FIG. 18 are schematic perspective views of a length measuring device according to still another embodiment of the present invention, and FIGS. 19 and 20 are views showing the internal arrangement relationship of main components of main components of the length measuring device according to the sixth embodiment of the present invention. .

The length measuring device of the sixth embodiment shown in Figs. 17 to 20 has most of the structural elements of the length measuring device shown in Figs. 1 to 3 . The constituent elements having the same functions as those of the length measuring device shown in FIGS. 1 to 3 are denoted by the same reference numerals, and the specific description of the same constituent elements is replaced by the contents described in FIGS. 1 to 3, Here, the structural elements of the differences will be described.

The electronic component of the length measuring device 100 of the sixth embodiment has the same structural elements as shown in FIG.

Referring to FIGS. 17 and 18, in the length measuring device 100 of the sixth embodiment, the casing 110 houses the respective components of the length measuring device 100, thereby providing a protective function, and is provided around the casing 110. The through hole 113 includes a part of the drive wheels 161a' and 161b' housed in the first rotating portion 161, which will be described later, of the casing 110, and an outlet 111 for introducing the rope 131 wound around the second rotating portion 162. Or lead.

Illustratively, although not shown in the drawings, a plurality of through holes 113 may be formed in accordance with the circumference of the casing 110. Therefore, the driving wheels 161a', 161b' of the first rotating portion 161 are exposed to the outside of the casing 110 at a plurality of positions, thereby not only allowing the user to freely hold the length measuring device 100, but also measuring in various ways. The length of the object is measured.

Referring to Figs. 19 and 20, the length measuring device 100 of the sixth embodiment includes a first rotating portion 161 that is housed in the casing 110 and that is partially exposed to the outside of the casing 110 to be in contact with the measuring object. Move along the surface of the measurement object.

The first rotating portion 161 may include a rotating shaft 1611 that is disposed to penetrate the housing 110.

The rotating shaft 1611 can be provided to penetrate the casing 110 so that the first rotating portion 161 and the second rotating portion 162 are fixed together to the casing 110, and the rotating shaft 1611 rotates together with the first rotating portion 161.

In more detail, the rotating shaft 1611 may include: a first joint portion 1611a having a polygonal prism shape combined with the drive wheels 161a', 161b'; and a cylindrical second joint portion 1611b from the end of the first joint portion It extends in the axial direction and is combined with a second rotating portion 162 which will be described later.

That is, when the first rotating portion 161 is rotated, in order to enable the second rotating portion 162 to be independently driven without being affected by the rotation of the first rotating portion 161, one of the rotating shafts 1611 combined with the first rotating portion 161 The side has a polygonal prism shape, and the other side combined with the second rotating portion 162 has a cylindrical shape.

Also, the first rotating portion 161 may include driving wheels 161a', 161b' that are coupled to the rotating shaft 1611, disposed inside the housing 110, and in contact with the surface of the measuring object. The state is rotated and moved along the surface of the measurement object.

The length measuring device 100 of the present invention has a plurality of driving wheels 161a', 161b', and the driving wheels 161a', 161b' are spaced apart from each other at a predetermined pitch in the axial direction of the casing 110, and are spaced apart from each other. A second rotating portion 162 to be described later may be disposed between the plurality of driving wheels 161a' and 161b'. For example, although not shown, a coupling hole (not shown) corresponding to the outer surface of the first joint portion 1611a may be formed in the drive wheels 161a' and 161b' so that the first joint portion 1611a of the rotary shaft 1611 can be combined with The drive wheels 161a', 161b' are combined.

At this time, the drive wheels 161a', 161b' can be coated. That is, a coating liquid prepared in advance may be applied to the surfaces of the driving wheels 161a', 161b' to enable the driving wheels 161a', 161b' to be accurate along the surface of the measuring object in a manner to maintain the grounding force with the measuring object. The movement.

Also, the first rotating portion 161 may further include a rotating shaft support bearing 1615 provided to the housing 110 for supporting the rotating shaft 1611.

On the other hand, the length measuring device 100 includes a second rotating portion 162 which, in combination with the first rotating portion 161, causes the wound rope 131 to be drawn out to the outside of the casing 110 in accordance with the length of the measuring object.

The second rotating portion 162 may include a reel 1621 that is combined with the second joint portion 1611b of the rotating shaft 1611, and is different from the driving wheels 161a', 161b' of the first rotating portion 161, and the reel 1621 and the rotation The shaft 1611 is independently driven independently.

A guide portion 1621a that supports the cord portion 130 in the axial direction may be formed at an end portion of the spool 1621. Therefore, the cord portion 130, which will be described later, which is repeatedly taken out or introduced, can be guided by the guide portion 1621a, so that the cord portion 130 can be stably wound around the reel 1621 without being detached from the reel 1621.

For example, although not shown, an elastic member (not shown) that is wound in a coil shape and connected to the cord portion 130 can be housed inside the spool 1621. Therefore, when the string 131 is taken out to the outside of the casing 110, the elastic member is compressed and deformed, and when the measurement is taken to release the drawn state of the cord 131, the elastic member is restored to the original shape by the elastic force, so that the housing 110 can be returned. The externally drawn cord 131 is reintroduced into the interior of the housing 110 and wound around the reel 1621.

Further, the second rotating portion 162 may include a cord portion 130 that is wound around the reel 1621 and, when measured, is led out to the outside of the housing 110 through the outlet 111 of the housing 110, and the reel 1621 is caused. Rotate.

The cord portion 130 may include a cord 131 wound around the reel 1621, and a hook portion 132 that is coupled to the end of the cord 131 and maintains a portion exposed to the outside of the housing 110, that is, remains stuck The state of the outlet 111.

The string 131 may be formed of a material that can be independently maintained in a straight line state within a predetermined length, and in order to further maximize the straight line state, the section viewed from the direction of the lead can be arched. shape.

The string 131 can be realized in various forms such as a line form, a belt form, or a tape form.

The shape of the end portion of the measuring article that can be hung in a fixed form forms the hook portion 132 so that the end portion of the cord portion 130 can be accurately aligned with the end portion of the measuring object.

For example, such as "┐" or "┬", the hook portion 132 can be formed in a hook shape in which a part is formed vertically.

Also, the second rotating portion 162 may further include a spool support bearing 1623 disposed between the spool 1621 and the second joint portion 1611b for supporting the spool 1621.

That is, the drive wheels 161a', 161b' of the first rotating portion 161 and the reel 1621 of the second rotating portion 162 are respectively coupled to the inner side and the outer side of the reel support bearing 1623 so as to be individually driven.

Referring to Fig. 3, in the length measuring device 100 of the sixth embodiment, the detecting portion 180 may include: a first detecting portion 181 for detecting the amount of rotation of the driving wheels 161a', 161b'; and a second detecting portion 182 for The amount of rotation of the reel 1621 is detected.

After the driving wheels 161a', 161b' are coupled, the first detecting portion 181 can detect the driving wheels 161a', 161b' by combining the ends of the rotating shaft 1611 protruding outward in the axial direction by a predetermined length. The amount of rotation.

Moreover, the second detecting portion 182 can detect the amount of rotation of the reel 1621 by combining with the end of the reel 1621.

More specifically, the second detecting portion 182 may be coupled to the other side of the reel 1621 corresponding to the guiding portion formed on one side of the reel 1621, thereby supporting the cord portion 130 together with the guiding portion 1621a and detecting the reel 1621. The amount of rotation.

The button portion 123 can receive an instruction input by a user for setting an operation mode of the length measuring device 100. For example, if the user presses the button portion 123 once, the length measurement mode based on the cord 131 can be selected, and if pressed twice, the length measurement mode based on the amount of rotation of the drive wheels 161a', 161b' can be selected, if pressed three times, Then, a length measurement mode or the like based on the non-contact measurement unit 140 to be described later can be selected. Of course, in addition to the above description, the button portion 123 can also receive various instructions related to the action of the length measuring device 100 input by the user in accordance with an embodiment.

On the other hand, the button portion 123 can also be realized in such a manner that the instruction input by the user is received by the first rotating portion 161. For example, when the button portion 123 is pressed, the initial function table is displayed on the display unit 121, and the user can select the sub-function table by rotating the drive wheels 161a' and 161b' of the first rotating portion 161. When the button portion 123 is pressed once, one of the three types of length measurement modes is displayed, and the display on the display unit 121 can be changed in accordance with the operation of the driving wheels 161a' and 161b' of the first rotating portion 161 by the user. Length measurement mode. Next, in a state where the display unit 121 displays the specific length measurement mode, if the user presses the button portion 123 again, the mode is selected, and the length measuring device 100 can operate in the selected mode. Of course, in addition to the above, it is also possible to receive a user command corresponding to the above operation if the user selectively operates the button portion 123 and the first rotating portion 161.

In the measurement mode using the string 131, the control unit 191 can detect the amount of rotation of the reel 1621 by the second detecting unit 182, and convert the degree of extraction of the string 131 into the measurement length. And, in Lee In the measurement mode of the drive wheels 161a', 161b', the control unit 191 can detect the amount of rotation of the drive wheels 161a', 161b' by the first detecting portion 181, and convert the amount of rotation of the first rotating portion 161 into the measured length. In the measurement mode by the non-contact measurement unit 140, laser light, infrared rays, ultrasonic waves, or the like can be generated in the non-contact measurement unit 140, and the time of re-reception or the like can be converted into the measurement length.

As described above, the electronic component of the length measuring device 100 of the sixth embodiment of the present invention performs the same functions as those of the components having the same reference numerals as those described with reference to FIG. 3, and thus detailed description thereof will be omitted.

On the other hand, as shown in Fig. 5, in the length measuring device according to the sixth embodiment of the present invention, the string 131 is also laminated on the reel 1621 so as to be wound a plurality of times. Therefore, the rotation length of the untwisted rope 131 is gradually shortened every time the reel 1621 is rotated, and in consideration of such a phenomenon, the same algorithm as in the mathematical expression 1 is applied so that the unit rotation amount is converted into the conversion ratio of the length. It is reduced stepwise in a predetermined interval.

On the other hand, as shown in FIG. 21, the length measuring device 100 of the sixth embodiment further has a third rotating portion 163 for converting the amount of rotation of the third rotating portion 163 into the measured length instead of the second rotating portion 162. The amount of rotation is converted into the measured length.

Fig. 21 is a view showing the internal arrangement relationship of the main components of the main component of the length measuring device according to the seventh embodiment of the present invention.

Referring to Fig. 21, the length measuring device 100 of the seventh embodiment may further include a third rotating portion 163 disposed between the reel 1621 and the outlet 111, and wound from the reel 1621 toward the outlet. When the user pulls out the hook portion 132 connected to the other end of the cord 131, the third rotating portion 163 rotates together with the reel 1621 of the second rotating portion 162.

More specifically, the third rotating portion 163 may have a structure in which the cord 131 disposed between the reel 1621 and the outlet 111 and extending toward the outlet 111 side is wound around the reel 1621 of the second rotating portion 162 After a plurality of times, it is wound once around the third rotating portion 163.

That is, as shown in FIG. 9, the rope 1311 of the second rotating portion 162 is wound with the rope 131 in a stacked manner, and therefore, the rope 131 that is taken out to the outside of the casing 110 as the drum 1621 is rotated is increased. The length is gradually shortened. Conversely, the string 131 is wound once around the third rotating portion 163. Therefore, even if the rotation of the third rotating portion 163 is increased, the rope that is led out to the outside of the casing 110 by the third rotating portion 163 is added. The length of 131 is also consistent.

Therefore, when the string 131 is taken out to the outside of the casing 110, the amount of rotation of the third rotating portion 163 is detected instead of detecting the amount of rotation of the spool 1621 of the second rotating portion 162, and the rotation of the third rotating portion 163 is performed. The measurement length is calculated in such a manner that the amount is converted, so that the length measurement according to the introduction or withdrawal of the string 131 can be accurately performed even without performing complicated calculation as in Math.

The second detecting portion 182 is not provided in the reel 1621 but in the rotating shaft of the third rotating portion 163 so that the amount of rotation of the third rotating portion 163 can be measured.

As shown in FIG. 4, the length measuring devices 100 of the fourth to seventh embodiments display the guide lines 210, 220 to the front and rear of the length measuring device 100 by the laser guiding portion 150, thereby enabling the user to follow the guide line 210. , 220 moves the length measuring device 100 so that accurate length measurement can be achieved.

Moreover, as shown in FIG. 9 and FIG. 10, the length measuring device 100 of the fourth embodiment to the seventh embodiment can realize the measurement of the straight line or the curve length, and the non-contact measuring portion 140 can even realize the object for measuring the object at the far end. Distance measurement. Of course, as shown in FIG. 11, the length measuring device 100 of the fourth embodiment to the seventh embodiment can operate in conjunction with the user terminal 200.

The embodiments of the present invention have been described above, but the scope of the present invention is not limited thereto, and the present invention includes those that are easily changed in the embodiments of the present invention and are recognized as equal technical solutions by those skilled in the art to which the present invention pertains. All changes and modifications within the scope.

Claims (16)

A length measuring device comprising: a housing; the first rotating portion is housed in the housing, and a part of the periphery is exposed to the outside of the housing, and is rotated in contact with the measuring object; the first detecting portion is used Detecting the amount of rotation of the first rotating portion; the second rotating portion winds the rope a plurality of times so as to adhere to one end of the rope until the other end of the rope exposed to the outside of the casing is caught Automatically rewinding the rope until the outlet of the casing; the third rotating portion introduces the rope to the outlet formed at the casing or the rope from the outlet, so that the third rotating portion performs Rotation; a second detecting unit configured to detect a rotation amount of the third rotating portion; and a control unit that converts the detected rotation amount of the first rotating portion into a measured length or the detected third rotation The amount of rotation of the part is converted into the measured length. The length measuring device according to claim 1, wherein the third rotating unit winds the rope once, and the rope rotates the third rotating portion while being disengaged from the second rotating portion. The length measuring device according to the first aspect of the invention, wherein the first rotating portion includes a rotating shaft that is disposed to penetrate the casing, and a driving wheel that is disposed to be coupled to the rotating shaft The inside of the casing is rotated in a state of being in contact with the surface of the measuring object, and moves along the surface of the measuring object. The length measuring device according to claim 3, further comprising a second rotating portion rotatably combined with the first rotating portion so that the rope wound around is equivalent to the length of the measured object The length of the housing is taken out to the outside of the housing, and the rotating shaft includes: a first joint portion having a polygonal prism shape combined with the driving wheel; and a second joint portion of a cylindrical shape extending from an end portion of the first joint portion in an axial direction and combined with the second rotating portion . The length measuring device according to claim 4, wherein the second rotating portion includes a spool, and the spool is coupled to the second joint portion and driven separately independently of the rotating shaft, the rope coil Around the circumference of the reel, when measuring, the rope is taken out to the outside of the casing and the reel is rotated. The length measuring device according to claim 5, wherein the second rotating portion further includes a spool supporting bearing, and the spool supporting bearing is disposed between the spool and the second joint portion for supporting The above reel. The length measuring device according to claim 5, further comprising a second detecting unit configured to detect a rotation amount of the reel, wherein the first detecting unit is configured to detect a rotation amount of the driving wheel, and the control unit The amount of rotation of the drive wheel or the amount of rotation of the spool is converted into a measured length. The length measuring device according to claim 5, further comprising: a third rotating portion, the rope is already in the third before the outer rope is wound out of the outer casing The rotating portion is wound once; and the second detecting portion is configured to detect the amount of rotation of the third rotating portion, the first detecting portion is configured to detect the amount of rotation of the driving wheel, and the control portion is configured to rotate the driving wheel Or the amount of rotation of the third rotating portion is converted into a measured length. A length measuring device, comprising: a casing, comprising an outlet for introducing or withdrawing a rope; and a switch disposed on the casing; The first rotating portion is housed in the casing, and a part of the periphery is exposed to the outside of the casing, and is rotated in contact with the measuring object, and a first rotating gear is provided at a center of the first rotating portion; a second rotating portion Rotating the above-mentioned rope a plurality of times, and rotating with the introduction or withdrawal of the rope, a second rotating gear is disposed at a center of the second rotating portion; and a third rotating gear is connected to the switch, according to the switch The switching operation is meshed with the first rotating gear or the second rotating gear; the detecting unit is configured to detect a rotation amount of the third rotating gear; and the control unit converts the detected rotation amount of the third rotating gear Into the measurement length. The length measuring device according to claim 9, wherein the detecting unit is provided on a rotating shaft of the third rotating gear. The length measuring device according to claim 9, wherein when the switch is at the first position, the third rotating gear meshes with the first rotating gear to rotate, and the detecting unit detects the first When the switch is located at the second position, the third rotating gear meshes with the second rotating gear to rotate, and the detecting unit detects the amount of rotation of the second rotating portion. The length measuring device according to claim 9, further comprising a fourth rotating gear meshing with the first rotating gear, wherein the third rotating gear is coupled to the second rotating gear according to a switching operation of the switch In the case of meshing, the fourth rotating gear meshes with the third rotating gear. The length measuring device according to any one of claims 1 to 12, further comprising a laser guiding portion that indicates a guide line on the measuring object. The length measuring device according to any one of claims 1 to 12, further comprising: a microphone portion for inputting a voice signal of a user; and a storage portion for mapping and storing the input Use the voice signal of the person and the above measured length. The length measuring device according to any one of claims 1 to 12, further comprising a communication portion that transmits the measurement length to the outside. The length measuring device according to any one of claims 1 to 12, further comprising a non-contact measuring unit configured to generate a predetermined signal and receive a signal reflected from the object, thereby measuring the object the distance.