KR200223530Y1 - size of shoes measuring instrument - Google Patents

Abstract

The present invention relates to a device for measuring the dimensions of the shoe, solves the problem that the conventional shoe size measurement device does not measure the dimensions accurately. To this end, the shoe size measuring apparatus according to the present invention includes a laser generating module 27 configured to emit or receive a laser, comprising a laser light emitting element and a light receiving element; The laser generating module 27 reflects the generated laser so that the laser is directed toward the lower inner surface of the shoe 30 or the laser reflected from the inner surface of the shoe 30 is a light receiving element of the laser generating module 27. A reflecting mirror 33 for reflecting toward; Transmission means (25,31) to rotate the upper and lower oscillation of the reflector 33 or the shoe 30 itself to evenly irradiate the lower inner surface of the shoe 30 by the laser light emitted from the laser generating module 27 35); The path of the laser generated by the laser generating module 27 is changed by the reflector 33 and irradiated to the lower inner surface of the shoe 30, and then the lower inner surface of the shoe 30 is three-dimensional from the time taken until the light is received. A scanning module for scanning with; It characterized in that it comprises a dimension determination module for determining the width direction and the longitudinal dimension of the shoe 30 from the geometric data on the inner surface of the shoe 30 calculated by the scanning module.

Description

Shoe measuring instrument {size of shoes measuring instrument}

The present invention relates to a device for automatically measuring the size of the shoe, and more particularly, to a device for accurately measuring the size of the shoe using a laser.

In general, the size of the shoe is manufactured and marketed at intervals of 5mm. That is, shoes are commercially available in 270 mm, 275 mm, 280 mm and the like. When determining the size of the shoe is to use a dimensional measuring device, the conventional dimensional measuring device was measured the size of the shoe using a piezoelectric sensor.

Figure 1 shows a conventional shoe size measuring apparatus. Referring to Figure 1, a conventional shoe size measuring device, a shoe bundle (1) made to fit the shape of the heel of the shoe 13, a small pneumatic solenoid (3) embedded in the iron bundle (1), and one side The connecting bar 7 is elongated and connected to the pneumatic solenoid 3 and protrudes out of the iron bundle 1, and is connected to the other side of the connecting bar 7 and has a rounded adapter 11 and the connecting bar ( 7 and a piezoelectric sensor 5 located at the rear end of the pneumatic solenoid 3 and connected to the connection bar 7. The pneumatic solenoid 3 and the piezoelectric sensor 5 are embedded in the iron bundle 1, and the output line of the piezoelectric sensor 5 is connected to an external controller (not shown) and a computer (not shown).

The pneumatic solenoid 3 vibrates the connecting bar 7 back and forth by pneumatic pressure, the adapter 11 hits the inner surface of the shoe (13). The adapter 11 should be inserted into the end of the connection bar 7 by the operator to grasp the approximate dimensions of the shoe (13).

Since the vibration width of the adapter 11 is about 50 mm or less, the length of the adapter 11 should be adjusted in advance so that the length between the inner surface of the shoe 13 and the adapter 11 is 50 mm or less during vibration. Therefore, the operator who measures the shoe size should know the dimensions of the shoe 13 in advance.

In order to measure the size of the shoe 13, the iron ball 1 is inserted into the shoe 13 as shown in FIG. 1, and then pneumatic pressure is applied. The applied pneumatic causes the pneumatic solenoid 3 to operate and pushes the connecting bar 7 according to the operation of the pneumatic solenoid 3. The force when the pneumatic solenoid (3) pushes the connecting bar (7) is about 2-3 kg / m ² . When the connecting bar 7 is pushed forward, the spring 9 configured at the outside of the connecting bar 7 is extended, and the adapter 11 connected to the end of the connecting bar 7 is also pushed, thereby adapting the adapter ( 11) presses the inner surface of the shoe (13). When the adapter 11 presses the inner surface of the shoe 13, pressure is generated, and the pressure is transmitted to the connection bar 7 and transmitted to the piezoelectric sensor 5. The piezoelectric sensor 5 continuously outputs a voltage proportional to the pressure to the controller. When the pressure is detected by the controller, when the pressure generated at the inner side of the shoe 13 is 0.2 kg / m ² or more, the controller is Outputs a signal to cut off the application of pneumatics. When the pneumatic pressure is cut off, the pneumatic solenoid 3 stops operating, and accordingly, the spring 9 is contracted by a restoring force. The contraction of the spring 9 causes the connecting bar 7 and the adapter 11 to retreat backwards.

The inner surface of the shoe 13, which has been pressed due to the retreat of the adapter 11, returns to its initial state and returns, and the pressure transmitted through the connecting bar 7 gradually disappears. Therefore, the pressure delivered to the pressure sensor is also less than 0.2kg / m ² or less, and thus the control unit again applies the air pressure to the pneumatic solenoid (3). According to the application of pneumatic pneumatic solenoid (3) again pushes the connecting bar (7) forward so that the adapter 11, as before, to press the inner surface of the shoe (13). When the pressure caused by the reaction of the inner surface of the shoe 13 according to the pressure is transmitted to the piezoelectric sensor 5 and the delivered pressure is 0.2kg / m ² or more, the control unit again blocks the pneumatic pressure applied to the pneumatic solenoid (3) Done. When the pneumatic pressure is blocked, the restoring force of the spring 9 acts as described above, so that the connecting bar 7 and the adapter 11 retreat. When the pressure transmitted from the inner surface of the shoe 13 gradually decreases due to the retreat of the adapter 11, and the pressure is less than 0.2 kg / m ² , the controller applies air pressure to the pneumatic solenoid 3 again. This process occurs continuously for a short time, usually 25 times in 25 seconds.

The inner surface of the shoe 13 is curved as shown in FIG. 2A. Therefore, when the adapter 11 presses the inner surface of the shoe 13, the adapter 11 does not press at right angles to the inner surface of the shoe 13 but has an angle as shown in FIG. 2B. Therefore, the adapter 11 is pushed back to the right little by little, retreat again, and presses again-> jungle-> retreat-> pressurization-> jungle-> retreat, and finally finds the deepest place as shown in FIG. . The adapter 11, the connecting bar 7, the pneumatic solenoid 3, and the piezoelectric sensor 5 can be rotated within a predetermined angle range, so that the adapter 11 and the connecting bar (as the adapter 11 is pushed to the right) are rotated. 7), the pneumatic solenoid (3), the piezoelectric sensor (5) as a whole to rotate to the right little by little. Therefore, as shown in FIG. 2C, the state is slightly rotated to the right side compared to the initial stage.

In the deepest portion of the inner surface of the shoe 13, the adapter 11 is no longer pushed to the right or to the left, and the pressure and retraction are continued at the same point. In this state, the controller 11 calculates the traveling length L ₂ of the adapter 11 based on the voltage output from the piezoelectric sensor 5 when the adapter 11 presses the inner surface of the shoe 13.

Since the length L ₁ from the deepest part of the heel of the shoe 13 to the adapter 11 is measured and recognized in advance, the running length of the adapter 11 is equal to the length L ₁ of the adapter 11. By adding L ₂ ), the longest length of the inner surface of the shoe 13 can be obtained. The longest length of the inner side of the shoe 13 is the dimension of the shoe 13.

The control unit that detects the output of the piezoelectric sensor 5 converts the pressure into the dimensions of the shoe 13 in real time and displays it in the form of a graph on a computer, while the computer takes an average and finally measures the dimensions of the shoe 13. Will be decided.

As described above, the conventional shoe size measuring device presses the inner surface of the shoe 13 to measure the size of the shoe 13 based on the pressure transmitted at this time. However, the conventional shoe size measurement device as described above has the following problems.

The conventional shoe size measuring device applies a plurality of shocks to the inner surface of the shoe 13 at the time of measurement, so that the inner surface is slightly contracted by such an impact, and the piezoelectric sensor 5 is actually a shoe in which the inner surface is contracted ( Measure the dimensions of 13). The exact dimensions of the shoe 13 should be measured with the inner side unretracted. For this reason, the conventional shoe size measuring apparatus has a problem in that the size of the shoe 13 cannot be accurately measured.

In addition, the conventional shoe size measuring device measures only the dimension in the longitudinal direction of the shoe (13).

In the purchase of shoes, the longitudinal dimension of the shoes is important, but also the transverse direction, that is, the width of the shoes. Each person's feet look different. Thus, the length of the foot and the width of the foot are not always proportional. However, conventionally manufactured shoes ignore these matters, that is, determine the dimensions of the entire shoe by proportioning the length of the foot and the width of the foot. For this reason, when a consumer buys shoes based only on the dimensions and buys them, the shoes are narrowly returned and the shoes are deformed when they are continuously worn while being ignored. And if you continue to wear narrow shoes, the wearer's foot shape is not only deformed little by little, there is a problem that the side of the shoe is broken quickly, such as the force is opened.

In addition, in the conventional shoe size measuring apparatus, an operator who measures the size of the shoe 13 should know the size of the shoe 13 in advance, and one adapter 11 should be close to the size of the shoe 13. Or it is inconvenient to insert two or three. Therefore, if the initial approximate dimensions are incorrectly recognized, incorrect results will be output. Therefore, dimension measurement takes a long time.

In fact, the conventional shoe size measurement device is not developed for the purpose of measuring the dimensions of the shoe 13, but was developed to determine whether the size of the upper and sole (sole) of the shoe (13) is approximately the same. In other words, it is a device developed for production management of a product in a factory. Therefore, it is not a shoe measurement device in the true sense, and thus there are problems as described above.

Accordingly, an object of the present invention is to provide a shoe size measuring apparatus using a laser to measure the size of the shoe accurately and easily.

1 is a view showing the configuration of a conventional shoe size measuring device.

2 is a view showing a measurement operation of the shoe size measuring apparatus of FIG.

Figure 3 shows the configuration of the shoe size measuring apparatus according to the first embodiment of the present invention.

Figure 4 is a state of use of the shoe size measuring apparatus of Figure 3;

5 and 6 are laser trajectory diagram of the shoe size measuring apparatus of FIG.

Figure 7 is a side view showing the configuration of a shoe size measuring apparatus according to a second embodiment of the present invention.

8 is a state diagram used in the shoe size measuring apparatus of FIG.

<Explanation of symbols for main parts of the drawings>

3: pneumatic solenoid 5: piezoelectric sensor

7: connecting bar 11: adapter

13,30,50: Shoes 21: Air cylinder

25,53: Stepping motor 27,45: Laser generation module

31,47: servomotor 33,51: reflector

35,49: Vibrator 55: Turntable

In order to achieve the above object, the shoe size measuring apparatus according to the present invention includes a laser generating module configured to emit or receive a laser, comprising a laser light emitting element and a light receiving element; A reflector reflecting the laser generated by the laser generating module so that the laser is directed toward the lower inner surface of the shoe or the laser reflected from the inner surface of the shoe is directed to the light receiving element of the laser generating module; A transmission means for rotating and reflecting the reflector or the shoe itself so that the laser light emitted by the laser generation module evenly irradiates the lower inner surface of the shoe; A scanning module for scanning the lower inner surface of the shoe in three dimensions from the time taken until the light is received after the laser generated by the laser generating module is changed in path by the reflector and irradiated to the lower inner surface of the shoe; And a dimension determining module for determining the width direction dimension and the length dimension of the shoe from the geometric data of the inner surface of the shoe calculated by the scanning module.

In addition, it is characterized in that it further comprises a lifting means for automatically inserting the reflector into the inside of the shoe to enable continuous shoe size measurement.

In addition, the dimension determination module, in addition to the widthwise dimension and the longitudinal dimension is characterized in that also determines the set-back dimensions considering the stretching of the shoe.

This shoe size measurement device configured as described above has the advantage that can accurately measure the longitudinal, transverse dimensions of the shoe in a three-dimensional scan method.

Hereinafter, the configuration of a shoe size measuring apparatus according to the present invention will be described in detail with reference to the accompanying drawings. Figure 3 shows the configuration of the shoe size measuring apparatus according to the first embodiment of the present invention from the side, Figure 4 shows the operation state diagram of the shoe size measuring apparatus of FIG.

3 and 4, the shoe dimension side device is an air cylinder 21 vertically spaced apart from the upper portion of the conveyor belt 20 by a predetermined height in a lower direction, and the shaft of the air cylinder 21. A support plate 23 arranged in a horizontal direction on the support plate 23, a laser generation module 27 configured to generate and receive a laser under the support plate 23, a stepping motor 25 formed on the support plate 23, and A lifting bar 29 configured to be perpendicular to the support plate 23 at a lower portion of the support plate 23, and having a driving shaft connected to a rotating shaft of the stepping motor 25 and rotatable with respect to the lifting bar 29; The servo motor 31 is formed on the opposite side of the laser generating module 27, the servo motor 31 is formed on the lifting bar 29, the reflecting mirror 33 is formed on the lower left side of the lifting bar 29, and the lifting bar ( 29 and a vibrator 35 configured at the lower right side of the servo motor 31; The limit switch 37 formed at the lower end of the elevating bar 29, and a control unit (not shown) and a computer (not shown).

3 illustrates an apparatus for continuously measuring the dimensions of a shoe 30 manufactured in a shoe manufacturing factory as an example of applying the shoe size measuring apparatus to a shoe manufacturing factory. As will be described later, Figure 5 is an example of applying the present shoe size measurement device to be used in a shoe shop, etc. is a device for measuring the size of the shoe sporadically unlike the shoe manufacturing plant.

The air cylinder 21 is configured to insert a series of devices into the shoe 30 when measuring the dimensions of the shoe 30 in progress on the conveyor belt 20, the air cylinder 21 is It is configured on the support plate 23 fixed to both sides of the conveyor belt 20 and configured in the shape of a fin by a predetermined height. Therefore, the shoes 30 placed on the conveyor belt 20 can pass freely under the air cylinder 21, and the shoes 30 that are carried on the conveyor belt 20 measure the shoe size. The air cylinder 21 is lowered when it comes to. As shown in FIG. 4, the support plate 23 connected to the lower portion of the air cylinder 21 is lowered as the air cylinder 21 is expanded, and the air cylinder 21 is lowered.

Referring to FIG. 4, when the air cylinder 21 descends, the support plate 23 descends, and all the components attached to the support plate 23 descend. Therefore, the lifting bar 29 is inserted into the shoe 30, and the reflector 33 and the vibrator 35 attached to the lower end of the lifting bar 29 are also inserted into the shoe 30. When the lifting bar 29 is inserted into the shoe 30 as the lifting bar 29 descends, the limit switch 37 operates to control the lower limit of the lifting bar 29. That is, when the limit switch 37 configured at the lower end of the elevating bar 29 contacts the bottom surface of the shoe 30 as the elevating bar 29 descends, the limit switch 37 is turned on to operate the control unit. The lowering of the cylinder 21 is stopped.

When the lowering of the air cylinder 21 is stopped, the lifting bar 29 stops while touching the bottom surface of the shoe 30. When the dimension measurement of the shoe 30 is completed, the air cylinder 21 is raised to raise all the components. Ascending of the air cylinder 21 is made by the contraction of the air cylinder 21 and when the air cylinder 21 rises to an initial state as shown in FIG. 3, the controller advances the conveyor belt 20 so that the next shoe 30 is At the measurement position. Then, the air cylinder 21 is lowered as shown in FIG. 4 to insert a series of devices necessary for the size measurement into the shoe 30 to make the size measurement.

Next, the laser generation module 27 generates a laser to scan the inner surface of the shoe 30 in three dimensions.

Lasers are widely used for distance measurement in various industrial fields, and recently, 3D scanning apparatus using lasers has been developed. Therefore, the present embodiment is configured to collect desired data by three-dimensionally scanning the inner surface of the shoe 30 using a laser. The laser generating module 27 includes a light emitting device for generating a laser and a light receiving device for receiving a laser in the form of a module. Considering the size of the laser generating module 27, it is impossible to insert the inside of the shoe 30. In this embodiment, the laser generating module 27 is placed outside the shoe 30 to change the path of the laser. The inner surface of the shoe 30 was configured to be irradiated. However, if the laser generation module 27 becomes very small enough to be inserted into the shoe 30, the laser generation module 27 is formed directly on the bottom of the elevating bar 29 without following the present embodiment. It is also possible to configure to insert into the interior of 30).

5 shows the progress trajectory of the laser generated by the laser generation module 27. Referring to FIG. 5, the laser generation module 27 generates the laser vertically downward with respect to the shoe 30. The generated laser is directed downward and then reflected to change the path.

The reflection of the laser is made by the reflector 33. The reflector 33 is configured to change the path of the laser so that the laser irradiated vertically into the shoe 30 can be irradiated with the inner surface required for the dimension measurement of the shoe 30.

In the present embodiment, the above-described reflector 33 is configured such that the laser irradiated from the outside of the shoe 30 by the laser generating module 27 can irradiate the inner surface of the shoe 30, but as described above. If the laser generating module 27 is configured to be inserted to the inside of the shoe 30 without following the present embodiment, the above-described reflector 33 may not be configured.

The laser irradiated to the inner surface of the shoe 30 by the reflector 33 is reflected by the inner surface of the shoe 30 to be directed back to the reflector 33, and is reflected by the reflector 33. It is directed to the light receiving element of the laser generation module 27. Therefore, the light receiving element receives the laser, and the computer calculates the distance from the generation of the laser to the light reception to calculate the distance to the inner surface of the shoe 30, and in consideration of the direction of the reflector 33 at this time, Scanning in dimension. The computer is provided with an interface card and a three-dimensional scanning program that can collect signals from the laser generation module 27 in advance, and perform three-dimensional scanning based on the data input through the interface card.

Next, the stepping motor 25 is configured to rotate the reflector 33 and is connected to the driving shaft of the laser generating module 27 and the lifting bar 29 so that the stepping motor 25 rotates. The laser generating module 27 and the lifting bar 29 also rotate together.

In order for the laser to scan the inner surface of the shoe 30 in three dimensions, the laser must be able to irradiate the entire inner surface of the shoe 30. Therefore, in the present embodiment, the stepping motor 25 is rotated so that the reflector 33 configured at the lower end of the laser generating module 27 and the lifting bar 29 is configured to rotate together. Therefore, when the laser generation module 27 and the reflector 33 are rotated 360 °, the irradiation of the laser is ended over the entire inner surface of the shoe 30, and such data is transmitted to the controller and the computer in real time, so that the inside of the shoe 30 Three-dimensional scanning of the sides is done.

Next, the vibrator 35 is configured to change the angle of the reflector 33.

In order to scan the inner surface of the shoe 30 in three dimensions, scanning should not be performed on any plane. Therefore, the angle of the reflector 33 should be changed up and down as shown in FIG. 5 so that the laser can irradiate not only the upper part but also the lower part of the inner side of the shoe 30. Therefore, in the present embodiment, the vibrator 35 as described above is formed at the rear end of the reflector 33, and when the servo motor 31 above the lifting bar 29 is driven, the vibrator 35 vibrates to reflect the reflector 33. ) Was configured to vibrate up and down.

In response to the 180 ° rotation of the reflector 33 due to the driving of the stepping motor 25 and the vertical vibration of the reflector 33 due to the driving of the servomotor 31 and the vibrator 35, the laser is applied to the shoe 30. The trajectory drawn from the side is shown in FIG. As shown in FIG. 6, the laser is irradiated to the upper and lower portions of the inner surface of the shoe 30 and from the front part to the rear part of the inner side of the shoe 30. Therefore, when the laser beam is irradiated while the reflector 33 rotates 360 ° and vibrates up and down by the driving of the stepping motor 25, the servo motor 31, and the vibrator 35, the entire inner surface of the shoe 30. Scanning takes place in three dimensions.

Three-dimensional scanning data of the inner side of the shoe 30 is stored on the computer, and displayed to the worker, and the computer automatically determines the lengthwise and widthwise dimensions of the shoe 30 from the scanning data. do. The computer has a built-in program for dimension determination in advance.

In this embodiment, very precise, that is, detailed dimensions up to 1 mm or less are not necessary, so the dimensions are determined by an error writing method based on the existing shoe dimensions. That is, the longitudinal dimension of the shoe 30 is determined by the formula 270 ± α or 270 ± β or 270 ± γ (α = 1, β = 2, γ = 3). Of course, the widthwise dimension was also configured to determine the dimensions by the error filling method as described above. In addition, when the shoe 30 is mounted, it is configured to determine the dimension considering the stretching, that is, the set-back dimension together. (Α, β, γ, width direction dimensions are reference dimensions).

For a good fit, shoes should be worn or loosely worn by individuals. For example, a person with 270mm foot length should wear shoes with dimensions of 269-271mm.

Shoes have some elasticity because the material is synthetic. In other words, it is possible to stretch a shoe about 269 mm by about 1 mm. If your shoe stretches about 1mm and wraps around your 270mm foot, you can feel better. These stretchable dimensions of the shoe are called set-backs, and the set-backs vary slightly depending on the material used in the shoe. Therefore, the set-back is also a matter to be considered by the consumer in order to select a shoe that is comfortable to wear. In this embodiment, the set-back dimension is also determined to help the consumer select a shoe. In this example, the expression is written in the form of 270 ± 5/100 or 270 ± 1/100. The front 270 is the size of the shoe measured by this three-dimensional laser scanning method, and the back 5/100 is the set-back. Whether the set-back should be 5/100 or 1/100, etc., a suitable value according to the material of the shoe should be determined in advance, and the set-back determined in this way should be input to the computer's dimensioning program. do.

Upon completion of the dimensioning, the longitudinal, width and set-back dimensions of the shoe 30 are displayed to the operator via a computer monitor. Once the dimension is determined, the dimensioning for one shoe 30 is completed, and the dimensioning for the subsequent shoe 30 proceeds immediately. The dimensions and set-backs determined for each shoe 30 are filled in and shipped to each shoe 30.

As such, the shoe dimensional measuring device measures the length, width, and set-back of the shoe 30 together, so that the consumer can more accurately select a shoe having a dimension suitable for the length and width of the foot. Occurs.

The above has described the configuration of a shoe size measuring apparatus applicable to a shoe manufacturing factory as a first embodiment of the present invention. Next will be briefly described the configuration of the shoe size measuring apparatus for a shoe retailer as a second embodiment of the present invention.

Figure 7 shows the configuration of the shoe size measurement apparatus that can be applied to the shoe store, by measuring the dimensions of the shoes already measured in the conventional way can recommend the shoes of the size that fits well to the customer There is an advantage to that.

Referring to FIG. 7, the shoe size measuring apparatus according to the second embodiment includes a turntable 55 on which a shoe 50 to be measured may be placed, a stepping motor 53 disposed below the turntable 55, And a support plate 57 positioned at a predetermined height from the turntable 55, a lifting bar 43 formed at the center of the support plate 57, a reflector 51 formed at the lower left of the lifting bar 43, and And a vibrator 49 formed at a lower right side of the elevating bar 43, a servo motor 47 spaced apart from the vibrator 49 by a predetermined height, and the servo motor 43 based on the elevating bar 43. 47, a laser generating module 45 located on the opposite side, a fixing device 41 with a handle for fixing the height of the elevating bar 43, and a computer having a three-dimensional scanning program and a dimension-determining program ( Not shown).

The basic principle of the shoe size measuring apparatus of FIG. 7 is the same as that of the shoe size measuring apparatus according to the first embodiment. That is, the laser generating module 45 generates a laser and uses the reflector 51 to irradiate the inner surface of the shoe 50 to scan the inner surface of the shoe 50 in three dimensions to determine the dimensions. do.

The turntable 55 is configured to rotate the shoe 50, and the turntable 55 is rotated by the stepping motor 53 at the bottom. That is, the rotating shaft of the stepping motor 53 and the driving shaft of the turntable 55 are connected, so that when the stepping motor 53 rotates, the turntable 55 also rotates together. As the turntable 55 rotates, the shoe 50 rotates.

In the first embodiment, unlike the shoe 30 is fixed on the conveyor belt 20 and configured to rotate the laser generating module 27 and the reflector 33, in the second embodiment, the laser generating module 45 And the reflector 51 is fixed and configured so that the shoe 50 rotates on the turntable 55.

In order to measure the size of the shoe 50, the lifting bar 43 is lowered by releasing the fixing device 41. When the lifting bar 43 is lowered, it is inserted into the shoe 50 and shows this state. Referring to FIG. 8, the elevating bar 43 is inserted into the shoe 50, and the servo motor 47, the reflector 51, and the vibrator 49 are also connected to the elevating bar 43. 50 is inserted into the interior.

In the state as shown in FIG. 8, the laser generation module 45 configured under the support plate 57 generates and receives a laser. The generated laser path is changed by the reflector 51 inserted into the shoe 50 to irradiate the inner surface of the shoe 50. At this time, the trajectory of the laser is the same as that of FIG. Since the three-dimensional scanning is not performed when the laser irradiates only the inner upper surface of the shoe 50, the vibrator 49 vibrates the reflector 51 up and down, and the laser evenly irradiates the entire inner surface of the shoe 50. Since the turntable 55 is to be rotated to rotate the shoe 50 360 °. Accordingly, the trajectory of the laser becomes the same as in FIG. Therefore, as in the first embodiment, the laser irradiates the entire inner surface of the shoe 50 evenly, and the computer collects geometric data on the inner surface of the shoe 50 through 3D laser scanning. The computer determines the dimensions in the same manner as in the first embodiment based on the collected data. Once the dimensions are determined, the measurement of the shoes 50 is completed, so that the clerk of the shoe store can measure the shoes selected by the buyer several times to select the shoes of the most suitable size at the time.

As described above, the shoe size measuring apparatus according to the present invention has an advantage of accurately measuring dimensions by measuring a shoe dimension in three dimensions using a laser. Therefore, the consumer can choose exactly the shoes for his feet, the shoe store has the advantage that can recommend a more accurate shoes to the consumer. This shoe size measuring device is very useful when used to measure the size of the shoe in a shoe manufacturing plant or shoe retailer.

Claims (3)

A laser generating module 27 comprising a laser light emitting element and a light receiving element to emit or receive a laser; The laser generating module 27 reflects the generated laser so that the laser is directed toward the lower inner surface of the shoe 30 or the laser reflected from the inner surface of the shoe 30 is a light receiving element of the laser generating module 27. A reflecting mirror 33 for reflecting toward; Transmission means (25,31) to rotate the upper and lower oscillation of the reflector 33 or the shoe 30 itself to evenly irradiate the lower inner surface of the shoe 30 by the laser light emitted from the laser generating module 27 35); The path of the laser generated by the laser generating module 27 is changed by the reflector 33 and irradiated to the lower inner surface of the shoe 30, and then the lower inner surface of the shoe 30 is three-dimensional from the time taken until the light is received. A scanning module for scanning with; And a dimension determining module for determining the width direction and the lengthwise dimension of the shoe (30) from the geometric data of the inner surface of the shoe (30) calculated by the scanning module. The shoe dimensional measurement apparatus according to claim 1, further comprising elevating means (21) for automatically inserting the reflector (33) into the shoe (30) to enable continuous shoe size measurement. . The apparatus of claim 1 or 2, wherein the dimension determination module determines a set-back dimension in consideration of the stretching and stretching of the shoe in addition to the width direction and the lengthwise dimension.