JP2002291502A - Foot measuring device and foot positioning accessory of which - Google Patents

Abstract

PROBLEM TO BE SOLVED: To measure foot shape more correctly without doing troublesome measuring work with a measure. SOLUTION: A photographing unit 10, which photographs the foot from a plurality of directions for measuring the foot shape, is provided with digital cameras 11a-11m, a positioning member 13 for positioning the foot 12 as a measuring object at a described position, and a holding enclosure 20 for fixedly holding them. The positioning member 13 positions the foot in a condition that the foot is floating in the air by touching the foot 12 at an instep section. By positioning while touching the foot at the instep section like this, the foot does not disturb photographing with the digital cameras 11a-11m, and movements of the foot 12 can be controlled while photographing.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a foot measuring apparatus suitable for measuring a foot for designing a last for manufacturing shoes.
And a foot positioning device of the foot measuring device.

[0002]

2. Description of the Related Art A last is used when manufacturing each part of a shoe.
It is used as a substitute for a foot for taking the pattern, and in a shoe assembling work, it is a work table for attaching an insole or an outsole of the shoe. Further, after assembling the shoe, it also serves as an ironing board that holds the assembled shape and determines the style of the shoe until the glue and other moisture used in the assembly evaporates and dries. As described above, the last plays various roles in manufacturing the shoe, and the size (including the shape) of the last determines the dimensions of the finished shoe.

[0003] There are two types of lasts used when mass-producing shoes, and last used when manufacturing ordered shoes (shoes that match the feet of each user). The last used when manufacturing custom shoes measures the size of the feet of the user of the custom shoes, which is a customer, and measures the measured foot dimensions (the dimensions here are the dimensions of many parts of the foot, In general, it is manufactured according to these dimensions.

[0004]

In order to make the last in this way, it is necessary to measure the dimensions of the user's foot. Conventionally, such a measurement of the size of the foot has been performed by a troublesome operation such that the manufacturer of the last uses a measure to measure the size of many parts of the user's foot.

[0005] Instead of the dimensional measurement due to the troublesome work as described above, the foot is photographed with a CCD (Charge Coupled Device) camera, and the photographed image is analyzed by using a technique such as photogrammetry. Techniques for measuring dimensions are conceivable. Such a technique has the advantage that it is not necessary to perform troublesome work such as measuring with a measure, but in order to perform accurate dimensional measurement, the user holds the foot still at the photographing position during photographing. Need to be kept. In view of this, it is conceivable to take a picture while holding the calf or the like of the foot by a fixing jig so as not to hinder the picture taking.

The present invention has been made in consideration of the above circumstances, and a foot measuring device capable of more accurately measuring the shape of a foot without performing a complicated measuring operation or the like, and An object of the present invention is to provide a foot positioning device for a foot measuring device.

[0007]

In order to solve the above problems, a foot measuring device according to the present invention is a foot measuring device for measuring the shape of a foot to be measured based on an image of a foot to be measured. A foot positioning means for positioning the foot at a predetermined position by contacting the instep portion of the foot to be measured, and an image of the foot positioned at the predetermined position by the foot positioning means. And a photographing means.

[0008] According to this configuration, the positioning means can be brought into contact with the instep portion of the foot which hardly hinders photographing, thereby positioning the foot at a predetermined position. In addition, since the foot is positioned on the instep of the foot, which is near the shooting target, rather than fixing the ankle or calf, the movement of the foot during shooting can be suppressed, and the shape of the foot can be more accurately adjusted. Can be measured.

A foot positioning device for a foot measuring device according to another aspect of the present invention is a foot measuring device for measuring the shape of a foot to be measured based on an image of the foot to be measured. A device for positioning the foot at a predetermined position, comprising a foot positioning means for positioning the foot at a predetermined position by contacting the upper part of the foot to be measured. .

[0010]

Embodiments of the present invention will be described below with reference to the drawings. A. Embodiment First, FIG. 1 is a perspective view showing an appearance of a foot measuring device according to an embodiment of the present invention, FIG. 2 is a side view thereof, and FIG. 3 is a front view thereof. As shown in FIGS. 1, 2 and 3, the foot measuring device includes a photographing unit 10 for positioning a foot to be measured at a predetermined position and photographing the foot with a plurality of digital cameras from a plurality of directions. Have.

The photographing unit 10 includes a plurality of digital cameras 11 equipped with a flash device that emits light during photographing.
a, 11b, 11c... 11m and the feet 12 of the person to be measured
Positioning member 13 for positioning a
And digital cameras 11a, 11b, 11c... 11
and a holding member 20 for fixing and holding the positioning member 13. The photographing unit 10 outputs image data of the foot 12 photographed by the digital cameras 11a, 11b, 11c... 11m from a plurality of directions to a computer system (not shown) via a cable or the like. Is performed, and the shape of the foot 12 to be measured is measured.

The holder 20 is a member mainly composed of three parts such as a base 21, a cavity forming part 22, and a heel side part 23. The base 21 is provided with the photographing unit 10.
This is a portion that is placed on the ground or the like when using the digital camera, and is a flat rectangular portion having a thickness that can accommodate a digital camera. In the base 21, two digital cameras 11a and 11b are embedded at positions opposed to the back surface of the foot 12 positioned at predetermined positions shown in FIGS. 1 and 2, and these digital cameras are positioned at respective positions. Is fixedly held. These digital cameras 11a, 1
1b is configured to photograph the back side of the foot 12.

The heel side portion 23 is a portion on the heel side of the foot 12 positioned at a predetermined position, and is a portion which rises upward from the base portion 21. The surface 23a of the heel side portion 23 is a curved surface, and this curved surface is a surface that is curved so as to face the foot 12 side positioned at a predetermined position. Heel side 23
Embedded therein are digital cameras 11c, 11d, and 11e for photographing the foot 12 positioned at a predetermined position from the heel side, and these digital cameras are fixedly held at the respective positions. These digital cameras 11
c, 11d, and 11e are the left oblique rear sides of the heel of the foot 12, respectively.
The foot 12 is photographed from right behind and diagonally right rear.

The cavity forming portion 22 is a portion that covers the toe side of the foot 12 positioned at a predetermined position, and forms a cavity S into which the foot 12 is inserted together with the base 21. The cavity S has a width T (see FIG. 3) of about 0.15 m, a toe height Ta (see FIG. 2) of about 0.08 m, and an instep height Tb (see FIG. 3) of 0. .13 m, which is a cavity large enough to insert a male foot. The dimensions of the cavity S formed by the cavity forming portion 22 and the base 21 are not limited to these,
Any size may be used as long as the foot 12 to be measured can be inserted with a certain margin.

Digital cameras 11f, 11g, 11h, 11i, 11 for photographing from the instep side of the foot 12 positioned at a predetermined position are provided in such a cavity forming portion 22.
j, 11k, 11l, and 11m are embedded, and these digital cameras are fixedly held at respective positions. Here, the digital cameras 11f, 11g, 11h
The digital cameras 11k, 11l, and 11m are embedded at positions obliquely above the left and right of the instep of the foot 12, and the digital cameras 11i and 11j are embedded at a position almost directly above the instep of the foot 12. These digital cameras capture the foot 12 from the direction in which each is embedded.

Both end portions 13a and 13b of the positioning member 13 are fixed to inner surface portions 22a and 22b of the cavity forming portion 22 that cover the sides of the foot 12. Positioning member 13
Has a contact portion 13c curved so as to protrude upward, and the contact portion 13c has a curved shape similar to the instep portion. Foot 1 to be measured
When positioning 2 at a predetermined position, as shown in FIG. 4, the user makes the instep of the foot 12 to be measured abut on the lower surface side of the abutting portion 13c. Thus, the contact portion 13c
1 and 2 by bringing the instep of the foot 12 into contact with the
The foot 12 is naturally positioned at a predetermined position shown in FIG. In the present embodiment, the positioning member 1
3, the instep of the foot 12 fits into the curved portion, and the digital camera 11a
It is possible to suppress the movement of the foot 12 at the time of shooting from 11 m to 11 m.

When the instep of the foot 12 is in contact with the contact portion 13c of the positioning member 13, the foot 12 is floating above the base 21 in the air. That is, the positioning member 1
Numeral 3 positions the foot 12 at a position floating in the air. In this way, when photographing with a large number of digital cameras to measure the shape of the foot, by leaving the foot 12 in the air, it is possible to photograph the foot 12 in a state where almost no force acts, A state in which no force is applied based on this photographed image (no deformation, etc.)
The shape of the foot 12 can be measured.

Further, in the photographing unit 10, a plurality of digital cameras 11 a to 1 m are fixed at predetermined positions in the holder 20 while the positioning members 13 are fixed.
As a result, the position of the foot 12 at the time of photographing is also positioned at a substantially constant position (a slight shift occurs due to the size of the foot and the like). That is, the positional relationship between the foot 12 to be measured by the positioning member 13 and the digital cameras 11a to 11m is almost always constant.
Therefore, every time the foot 12 to be measured is photographed,
There is no need to perform operations such as moving and adjusting the positions of the digital cameras 11a to 11m. In particular, to improve the measurement accuracy, it is preferable to photograph the foot 12 from many directions. However, to photograph from many directions, many digital cameras are required. As the number increases, the position adjustment work becomes complicated. However, in the photographing unit 10,
Feet 12 to be positioned and a number of digital cameras 11
Since the positional relationship between a and 11 m is substantially constant, there is no need to perform complicated position adjustment work even when many digital cameras are used.

Further, since the position adjustment work of the large number of digital cameras 11a to 11m is unnecessary as described above, the foot 12 is positioned at a predetermined position by the positioning member 13, and immediately after the positioning of the large number of digital cameras 11a to 11m.
Can be started, and the photographing operation in a short time (the photographing time if photographing is performed by all the digital cameras 11a to 11m at a time) can be completed (by the digital cameras 11a to 11m at a time). If you shoot, the shooting time will be instantaneous.) Therefore, the burden of positioning the foot 12 at a predetermined position for a long time is reduced for the user who is the measurement target, and particularly when the foot 12 is positioned in a state of being floated in the air as in the present embodiment. The burden on the user is greatly reduced.

In this embodiment, the foot 12 is positioned at a predetermined position by bringing the instep of the foot 12 into contact with the positioning member 13. No members or the like are required. That is, there is no member that covers the toes or the back surface of the foot necessary for producing the last, and the positioning member 13 covers only the instep portion of the foot 12 that does not need dimensions for producing the last. . Therefore, the positioning member 13 for positioning the foot 12
However, this does not hinder the photographing of the foot 12 by the digital cameras 11a to 11m.

B. Modifications The present invention is not limited to the above-described embodiment, and various modifications as exemplified below are possible.

(Modification 1) In the embodiment described above, a large number of digital cameras 11a to 11m are embedded in the holder 20, and the foot 12 is photographed from a plurality of directions by these digital cameras. In such a case,
If images are taken by the digital cameras 11a to 11m at one time, good images may not be obtained from each other due to the emission of flash light from the digital cameras arranged opposite to each other. In order to prevent the captured image from deteriorating due to such flash emission, a control device as shown in FIG. 5 may be incorporated in the foot measurement device.

As shown in FIG. 1, this control device has a timing control device 50 for controlling the photographing timing of each of the digital cameras 11a to 11m. The timing control device 50 includes the digital cameras 11a to 11a
A start signal for instructing the start of photographing is output to 1 m, and the start of photographing by each of the digital cameras 11 a to 11 m is controlled at the timing described below.

As shown in FIGS. 1 to 3, the photographing unit 10 includes digital cameras 11i and 11j.
And the digital cameras 11a and 11b are arranged opposite to each other, and when photographing is performed simultaneously with these digital cameras, a good photographed image may not be obtained due to the emission of the flash light of the digital cameras arranged opposite each other. possible. For this reason, the timing control device 50 controls the digital cameras 11a and 11b and the digital camera 11
The start signal is output such that the shooting start timing with i, 11j is shifted by a predetermined time (about 1 second or 2 seconds). At this time, as for other digital cameras, for example, the digital camera 11 arranged above the foot 12
f, 11g, 11h, 11k, 11l, and 11m output start signals at the same timing as the digital cameras 11i and 11j, and digital cameras 11c, 11d, and 11e arranged below the foot 12 provide digital cameras 11a. , 11b at the same timing.

(Modification 2) The shape of the positioning member 13 for positioning the foot 12 at a predetermined position and the holder 2
The method of mounting the foot 12 on the foot 12 is not limited to the method described in the above embodiment, and any method can be used as long as the foot 12 can be positioned by contacting the instep of the foot 12.

For example, as shown in FIG.
a or 22b (the inner surface 22a is shown)
Only one end 13d of the positioning member 13 'may be fixed, and the other end may be a curved contact portion 13e.

Further, as shown in FIG.
Positioning members 130 provided on each of 2a and 22b,
A configuration in which the foot 12 is positioned using two members such as 131 may be used. As shown in the figure, one end portions 130a, 131a of the positioning members 130, 131
Are fixed to the inner surfaces 22a and 22b, and the other end 1
30b and 131b have a shape curved upward. By bringing the instep of the foot 12 into contact with the curved portion formed by the other end portions 130b and 131b of the two positioning members 130 and 131, the foot 12 can be positioned at a predetermined position. I have.

At substantially the center of the positioning members 130 and 131, expandable and contractible portions 130c and 131c are provided. A biasing means such as a spring is built in the inside of the expansion and contraction portions 130c and 131c, and normally presses the other end 130b toward the other end 131b and the other end 131b toward the other end 130b. It is in such a state (extended state). In this state, the other end portions 130b, 13
The curved shape formed by 1b is smaller than the curved shape formed by the contact portion 13c of the above embodiment. Under this configuration, when the instep of the foot 12 to be measured is inserted into this curved portion, as shown in FIG. 7 (b), the elastic parts 130c, 1c depend on the size of the instep of the inserted foot 12.
The other end portions 130b and 131b can move in a direction away from each other while maintaining the contact state of the foot 12 with the instep. Such positioning members 130, 13
By using 1, the individual difference in the size of the foot 12 to be measured can be absorbed, and the other end portions 130b and 131b are always in the instep of the foot 12 regardless of the size of the foot of the person to be measured. As a result, the movement of the foot 12 during photographing can be suppressed.

(Modification 3) In the above-described embodiment, the three parts such as the base 21, the cavity forming part 22, and the heel side part 23 are used.
Holder 20 having two parts is a digital camera 11a
11m, the position of the foot 12 which holds the positioning member 13 and is positioned by the positioning member 13, and the positional relationship between the digital cameras 11a to 11m is substantially constant. The shape is not limited to the shape as in the above-described embodiment, but may be any as long as the position of the foot 12 and the positional relationship between the digital cameras can be made substantially constant. There may be.

(Modification 4) In the above embodiment, the photographing unit 10 having the digital cameras 11a to 11m, the positioning member 13 and the holder 20 has been described. However, the positioning member 13 alone may be separated and sold. In this case, the positioning member 13 may be used while being held by holding means having a configuration other than the holder 20.

(Modification 5) In the above embodiment, the foot 1
Although the digital camera is used as the means for photographing the foot 2, the foot 12 may be photographed by arranging something other than the digital camera as described above. For example, the foot 12 may be photographed by a normal camera, a photographic image obtained by the photographing may be read as image data by a scanner or the like, and an analysis process for shape measurement may be performed on the image data.

[0032]

As described above, according to the present invention,
It is possible to more accurately measure the shape of the foot without performing a complicated measuring operation or the like using a measure.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an appearance of a photographing unit of a foot measuring device according to an embodiment of the present invention.

FIG. 2 is a side view showing the photographing unit.

FIG. 3 is a front view showing the photographing unit.

FIG. 4 is a perspective view showing the vicinity of a positioning member which is a component of the photographing unit.

FIG. 5 is a block diagram illustrating a configuration of a control device according to a modified example of the photographing unit.

FIG. 6 is a perspective view showing a modification of the positioning member of the photographing unit.

FIG. 7 is a perspective view showing another modified example of the positioning member of the photographing unit.

[Explanation of symbols]

10. Photographing unit, 11a, 11b, 11c, 11
d, 11e, 11f, 11g, 11h, 11i, 11
j, 11k, 11l, 11m... digital camera, 1
2 ... foot, 13 ... positioning member, 13a ... end, 1
3b ... end, 13c ... contact part, 13 '... positioning member, 13d ... one end, 13e ... contact part, 20 ...
Holder, 21 Base, 22 Cavity forming part, 23
Heel side part, 50 timing control device, 130, 131
... Positioning members, 130a, 131a ... Ends, 13
0b, 131b... End, 130c, 131c.

Claims (10)

[Claims] 1. A foot measuring device for measuring the shape of a foot to be measured based on an image of the foot to be measured, wherein the foot is in contact with a part of the instep of the foot to be measured. A foot measuring device, comprising: foot positioning means for positioning the foot at a predetermined position; and photographing means for photographing the foot positioned at the predetermined position by the foot positioning means. 2. The foot measuring device according to claim 1, wherein the photographing unit has a plurality of image photographing units, and each image photographing unit photographs the foot from a different direction. 3. The apparatus according to claim 1, further comprising a holding member for holding said foot positioning means and said image photographing means, wherein a positional relationship between said foot positioning member and said image photographing means is fixed. 3. The foot measuring device according to 1 or 2. 4. The holding member has a portion that covers the periphery of the toe of the foot positioned at the predetermined position, and at least one of the image photographing means is fixed to the portion. The foot measuring device according to claim 3, wherein: 5. The image photographing means has a light emitting means for emitting light at the time of photographing, and means for controlling a photographing timing by the image photographing means, wherein the foot by the image photographing means arranged opposite to each other is provided. 5. The foot measuring device according to claim 2, further comprising timing control means for controlling the photographing timing to be different. 6. The foot measuring device according to claim 1, wherein said foot positioning means has a portion in contact with the instep of said foot curved so that said foot side is depressed. . 7. The foot measuring device according to claim 1, wherein the predetermined position to be positioned by the foot positioning means is a position where the foot is floated in the air. 8. A foot measuring device for measuring the shape of a foot to be measured based on an image of the foot to be measured, wherein the foot is positioned at a predetermined position during shooting. A foot positioning device for a foot measuring device, comprising: foot positioning means for positioning the foot at a predetermined position by abutting a portion of a target instep. 9. The foot positioning device according to claim 8, wherein a portion of the foot positioning means that contacts the instep of the foot is curved so that the foot side is depressed. 10. The foot positioning device according to claim 8, wherein the predetermined position to be positioned by the foot positioning means is a position where the foot is floated in the air.