JP2015167669A - Shoe manufacturing method using last of split-toed heavy-cloth shoe - Google Patents

Abstract

PROBLEM TO BE SOLVED: To suppress or prevent recess of an upper in the finger crotch caused by tucking-in operation when a shoe is manufactured using a last of a split-toed heavy-cloth shoe (jikatabi).SOLUTION: This is a shoe manufacturing method using a last 2 of a jikatabi, a method in which, for the purpose of making the surfaces 22 continuous on the instep side at least across the finger crotch 21, tucking operation is performed by using the last 2 of a jikatabi with an auxiliary face attached freely detachably between the surfaces 22. The auxiliary face is defined as the upper face of an interfacing material 1 of an outer shape which is surrounded with a virtual surface 211 connecting the instep side surfaces 22 across the finger crotch 21 and with a virtual surface 212 connecting the sole side bottom faces 23 across the finger crotch 21.

Description

  The present invention relates to a method for manufacturing shoes using the last of various tabi socks such as an underground socks and tatami socks.

  Shoes and basement socks consist of the upper (the toe is covered with a tip or the inner cloth is applied to the inner surface; the same applies hereinafter) to the outer shape following the foot. The last (form) to which the dough or skin to be added is used (Patent Document 1). The last is a metal mold or a wooden mold with no irregularities on the surface, and the suspended fabric or skin is brought into close contact with the surface, and is adjusted to an outer shape following the surface. For this reason, as for the last of the underground tabi with a finger crotch, naturally cloth or skin is suspended also between the finger crotch.

JP 2004-283500 A

  There is no difference in the manufacturing method of shoes and basement socks for hanging using the last. However, the finished appearance of shoes and basement socks is different. This is because the last structure used for each is different in the following points.

  First, since the last of the shoe is composed of an elliptical long-axis curve protruding around the tip of the toe, a margin beyond the toe is formed on the toe of the manufactured shoe. On the other hand, in the last of the underground tabi, the toe is constituted by a curve along the tip of the toe, so that almost no margin is formed on the toe of the manufactured underground tabi.

  Further, the last of the shoe has a relatively narrow foot width in the direction connecting the mother-child sphere and the little finger ball, and the last of the underground socks has a relatively wide foot. And the last of the socks, the upper surface of the shoe that is manufactured against the instep of the foot has a high upper surface that presses the upper so as to form a spatial margin, whereas the last of the socks The upper surface which presses the said upper shell is low so that the upper shell of the underground tabi manufactured with respect to the upper of the foot may stick.

  In recent years, it has been found that the finger crotch provided in the underground socks has the function of suppressing or preventing hallux valgus, reducing the burden on the feet during running, and improving the exercise function, and has begun to be incorporated into shoes. However, the underground socks have not only the finger crotch but also the function of improving the comfort due to the feature of the outer shape based on the last. From now on, a shoe having an outer shape of an underground tabi has been made by the last of a shoe without a crotch simulating the last of an underground tabi.

  In the suspension, the cloth or the skin is pressed against the surface of the last, and if the shoe is suspended by using the last of the underground tabi with the finger crotch as it is, there is a problem that the upper is dented at the finger crotch portion. For this reason, when manufacturing shoes without finger crotch, the last of shoes without finger crotch that imitates the last of the underground tabi is necessary.

  However, since the required outer shape already exists as the last of the underground tabi, manufacturing a new last at high cost only increases the unit price of new shoes. Therefore, when manufacturing shoes using the last of the underground tabi, we established a technology to suppress or prevent the depression of the crust at the crotch due to suspension, and also used the last of various tabi with the crotch In order to develop the manufacturing method of shoes, it examined.

  As a result of the study, the last developed tabi that was suspended using the last of the tabi with the auxiliary surface detachably attached between the surfaces so that at least the surface on the back side across the finger crotch was continuous was developed. This is a manufacturing method for shoes. The present invention makes it possible to use the last of various tabi for manufacturing shoes by closing at least the surface on the instep side sandwiching the crotch with an auxiliary surface, and eliminating the indentation of the upper shell due to suspension. Since the attachment / detachment of the auxiliary surface is not limited to the type of the socks, the shoes can be manufactured with the last of the socks.

  The auxiliary surface is an upper surface of an outer shape covering material that fills the finger crotch surrounded by a virtual surface that connects the instep side surface that sandwiches the finger crotch and a virtual bottom surface that connects the bottom surface of the sole side that sandwiches the finger crotch . The interstitial material can be formed into a shape that follows the virtual surface that connects the surface with the surface straddling the finger crotch, and the upper pressed against the crotch that fills the space of the finger crotch and suppresses or prevents the crust from falling Like that. The last of the tabi can be used for the production of various tabi as it is if the intervening material is removed from the finger crotch.

  A specific example of the interposing material is a block in which an upper side flange that is in contact with the upper side is provided on the upper side of the upper side of the partition wall that faces the inner side surface of the finger crotch. . It is preferable that the upper side flange protrudes left and right from the upper edge of the partition wall. The upper edge (upper surface) of the partition wall and the upper surface of the upper side flange are continuous to form an auxiliary surface that closes the finger crotch. The partition wall is in contact with the left and right inner surfaces facing each other with the finger crotch space interposed therebetween, thereby enhancing the mounting stability of the interstitial material with respect to the last of the socks. The upper side flange may be formed with a lower surface on a curved surface continuous from the partition wall, following the last crotch of the tabi.

  Moreover, it is good for the intervention material to provide the bottom side flange which touches from the bottom on the bottom face of the sole side which pinches | interposes the finger crotch of the socks at the lower edge of the partition wall which contacts the inner surface of the finger crotch. The bottom flange makes contact with the last of the tabi from below, thereby enhancing the mounting stability of the interstitial material with respect to the last of the tabi. Here, when the interstitial material also has the above-mentioned side flange, the left and right sides of the finger crotch are sandwiched between the upper side flange and the bottom side flange, and the mounting stability of the interstitial material against the last of the tabi can be further enhanced.

  According to the present invention, shoes having outer shapes of the various socks can be manufactured by utilizing the last of various socks having finger crotches in addition to the underground socks. This is an effect of being able to suppress or prevent the depression of the upper shell during suspension while using the last of various tabi. In addition, since the auxiliary surface that closes between the surfaces sandwiching the finger crotch is detachable, the present invention has an advantage that the last of the tabi without the auxiliary surface can be used as it is for manufacturing various tabi.

  The auxiliary surface is the upper surface of an externally shaped interstitial material that fills the finger crotch, so that the interstitial material is sandwiched between the upper side surfaces sandwiching the finger crotch by simply inserting the interstitial material into the finger crotch and mounting it. The auxiliary surface can be closed as an auxiliary surface, and the auxiliary surface can be easily removed from between the surfaces just by pulling out the intervention material from the finger crotch. The present invention has an effect of suppressing or preventing the dent of the crust at the time of suspending using the last of various tabi socks only by using an easily detachable intervention material.

  The intervention material determines the mounting position on the finger crotch by making the partition wall contact the inner surface of the finger crotch and the upper side flange from the upper side to contact the upper side surface. Make it stronger. This is the effect that the partition wall and the instep side flange in an intersecting relationship (substantially orthogonal relationship) contact the last of the tabi at different sites. The intervention material can further enhance the mounting stability by bringing the bottom flange into contact with the bottom surface on the sole side from below. In this way, the intervention material of the present invention has an effect of blocking the finger crotch reliably and stably.

It is a perspective view showing an example of the intervention material used for this invention. It is a front view of the intervention material of this example. It is a rear view of the intervention material of this example. It is a top view of the intervention material of this example. It is a bottom view of the intervention material of this example. It is a left view of the intervention material of this example. It is AA sectional drawing in FIG. It is a front view showing an example of the last of the tabi used for this invention. It is a perspective view showing the positional relationship which installs an intervention material on the finger crotch of the last of a tabi. It is a perspective view showing the state which installed the intervention material on the finger crotch of the last of a tabi. It is a perspective view showing the state which has hung the upper shell in the last of the tabi with which the intervention material was mounted | worn. It is a perspective view showing the state which removed the last of the tabi from the completed shoes, and the intervention material from the last of the tabi, respectively.

  Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. As shown in FIGS. 9 and 10, the present invention provides an intermediary material 1 (FIG. 1 to FIG. 1) in which an upper flange 12 is provided on the upper edge of the partition wall 11 and a bottom flange 13 is provided on the lower edge of the partition wall 11. 7) is attached to the finger crotch 21 of the last 2 of the tabi (see FIG. 8), and as shown in FIG. 11, the upper 31 is placed over the toe portion as if using the normal last. This is a manufacturing method for making a normal shoe 3 as shown in FIG.

  The shoe 3 manufactured using the last 2 of the tabi is compared with a shoe manufactured using the normal last 1) The toes follow a toe and draw a gentle plan view arc shape 2 3) Features a shape of the outer shape such as a large foot width connecting the thumb ball and the little ball (about 1.4 times), and 3) a low crust 31 that is flat and easy to adhere to the back of the foot. In particular, the shoe 3 with the wide foot width having the feature 2) has a large ground contact area with respect to the ground, and has an advantage that the force for kicking the ground can be increased.

  The last 2 of the tabi for use is, for example, the last of an underground tabi. The present invention is originally not suitable for manufacturing the shoes 3 (specifically, there is a finger crotch where the upper 31 falls when suspended) and the removable intermediary material 1 is temporarily attached to the last 2 for use. Therefore, the last 2 of the socks to which the intermediary material 1 is to be attached is not limited to the last of the underground socks, but the last such as tatami socks with different bottom shapes, festival socks and socks for working at high places can also be used. .

  As shown in FIG. 8, the last 2 of the tabi has a surface shape in which the instep side surface 22 sandwiching the finger crotch 21 smoothly falls toward the finger crotch 21, whereas the sole side sandwiching the finger crotch 21 The bottom surface 23 is usually a flat surface (there may be undulations depending on the type of socks). The last 2 of the socks are often made of metal (cast) so that they can withstand the heat treatment during suspension, but may be made of wood when there is no heat treatment.

  The interstitial material 1 of the present example includes an upper flange 12 having a surface imitating the virtual surface 211 of the last 2 on a partition wall 11 whose side faces closely contact the finger crotch 21 of the last 2 of the tabi, and the last 2 This is a metal (cast) block having a bottom flange 13 having a bottom surface parallel to the virtual bottom surface 212. When there is no heat treatment for hanging, the interposing material 1 can be made of wood, resin, or rubber. The outer shape of the partition wall 11 is determined by the outer shape of the finger crotch 21 so that the side surface is in close contact with the inner side surface sandwiching the finger crotch 21 of the last 2 of the tabi.

  As shown in FIG. 7, the upper side flange 12 is a U-shaped curved surface in plan view that is flush with a virtual surface 211 that connects the upper side surface 22 sandwiching the finger crotch 21 of the last 2 of the tabi. The lower surface continuous with the side surface of the wall 11 is a curved surface that follows the surface 22 on the upper side that smoothly falls toward the finger crotch 21. The upper edge (upper surface) of the partition wall 11 and the upper surface of the upper side flange 12 are continuous to form an auxiliary surface that closes the finger crotch 21. Further, the bottom flange 13 is a plane whose upper surface and lower surface are parallel to a virtual bottom surface 212 that connects a bottom surface 23 on the sole side that sandwiches the finger crotch 21 of the last 2 of the tabi.

  From the standpoint of preventing the upper 31 from dropping during suspension, the upper surface of the upper flange 12 should be flush with the virtual surface 211, and the lower surface of the upper flange 12 is the upper surface of the last 2 of the tabi. May be away from 22. However, the interstitial material 1 of the present example adheres the lower surface of the upper flange 12 to the upper surface 22 as a curved surface following the upper surface 22 that smoothly falls toward the finger crotch 21. Shaking of the intermediary material 1 attached to the finger crotch 21 is suppressed or prevented. Further, if the lower surface is formed in this way, the instep side flange 12 becomes thick as a result, and it becomes easy to counter the pressure of the upper 31 during suspension.

  Further, from the viewpoint of preventing the upper 31 from being dropped during suspension, the bottom flange 13 is not essential and may not be provided in the interstitial material 1. However, the bottom flange 13 is in close contact with the bottom surface 23 on the sole side of the last 2 of the tabi, and further sandwiches the inner surface of the last 2 of the tabi that is paired with the instep side flange 12 and sandwiches the finger crotch 21 vertically. Accordingly, it has a function of ensuring the mounting stability of the interstitial material 1 mounted on the finger crotch 21 of the last 2, and therefore it is preferable to provide it.

  As shown in FIGS. 9 and 10, the intermediary material 1 has a partition wall 11 inserted into the finger crotch 21 of the last 2 of the tabi, and the lower surface of the upper side flange 12 is in contact with the upper side 22 of the last 2. It is attached to the last 2 of the tabi so that the upper surface of the bottom flange 13 is in contact with the bottom 23 on the sole side of the last 2. In this way, even if the last 2 of the tabi where the finger crotch 21 is blocked by the intermediary material 1 is used, it can be suspended in the same manner as the last of normal shoes.

  As shown in FIG. 11, the suspension is an operation of forming an outer shape while attaching a crust 31 or a front skin 311 integrated with the crust 31 to the surface 22 on the back side of the last 2 of the tabi. It is necessary to press the upper shell 31 strongly against the surface 22 on the upper side. For this reason, if the surface 22 on the upper side is uneven, the outer shape of the upper 31 is broken. The finger crotch member 1 prevents the upper 31 from being dented by closing the finger crotch 21 using the upper edge (upper surface) of the partition wall 11 and the upper flange 12 as auxiliary surfaces.

  During suspension, the interstitial material 1 is pressed down by the suspended upper 31, so that it does not need to be fixed with respect to the last 2 of the tabi so long as the displacement does not occur until the upper 31 is covered. It is only necessary to insert the partition wall 11 into the finger crotch 21 as in this example. As a result, the intervening material 1 can be easily attached to and detached from the last 2 of the tabi, and after the suspension, the intervening material 1 can be removed and the last 2 of the tabi can be collected and reused.

  When the shoe 3 is completed by joining the shoe sole 32 to the upper 31, as shown in FIG. 12, the last 2 of the tabi is pulled out from the shoe 3, and the interstitial material 1 is removed from the last 2 of the tabi. Thereby, the last 2 of the socks can be used as it is for the production of the original socks. Further, if the intermediary material 1 is attached to the finger crotch 21 of the last 2 of the tabi, the shoe 3 having the outer shape of the tabi can be manufactured. As described above, the present invention is characterized in that the shoe 2 can be manufactured by borrowing the last 2 of the tabi by using the intermediary material 1 that can be easily attached and detached.

1 Intervention materials
11 Partition wall
12 Upper flange
13 Bottom flange 2 Last of tabi
21 finger crotch
211 virtual surface
212 Virtual bottom
22 Instep surface
23 Bottom of sole 3 Shoes
31 Crust
311 skin
32 soles

Claims (4)

A method for manufacturing a shoe using a last of a tabi that is suspended by using the last of a tabi in which an auxiliary surface is detachably attached between the surfaces so that at least the surface on the back side sandwiching the crotch is continuous. The auxiliary surface is an upper surface of an outer shape covering material that fills the finger crotch surrounded by a virtual surface that connects the surface on the instep side that sandwiches the finger crotch and a virtual bottom surface that connects the bottom surface of the sole side that sandwiches the finger crotch A method for manufacturing a shoe using the last of the socks of claim 1. The intervening material is a block in which an upper side flange that is in contact with an upper side is provided on an upper surface of the upper side of the socks that sandwiches the finger crotch at the upper edge of the partition wall that contacts the inner side surface of the finger crotch. Shoes manufacturing method using the last of tabi. The intervening material is a block in which a bottom flange that is in contact with the bottom is provided on the bottom surface of the sole side that sandwiches the crotch of the socks at the lower edge of the partition wall that contacts the inner surface of the crotch. 3. A method for manufacturing a shoe using the last of the socks described in any one of 3 above.

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