JPH07507936A - Molded footwear with a predetermined shape and its manufacturing method - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] ■Iho H The present invention relates to molded footwear, particularly waterproof footwear having an integrally molded upper and lower foot part. Regarding the manufacture of kimono.

light example ftft Injection molding has long been a well-known processing method, and it is used for the soles of shoes such as rubber boots. commonly used to make waterproof footwear with an upper that is attached to the It is. In the past, this manufacturing method was used to attach to shoe sole parts. an upper part with a flat inner sole (i.e. the lowest inner sole on which the foot rests) that is folded or molded; Only waterproof footwear with Typically, this manufacturing method Therefore, the footwear products manufactured by An additional shaped foot support is provided which is inserted into the article of footwear in order to There are many things. This additional step adds time and cost to the manufacturing process, and As you stand up, the insert is more likely to come off or move while you are wearing it, so Unsatisfactory results are likely to occur.

In this way, the upper part and the sole part that supports the foot are integrally molded, making them comfortable and waterproof. The product is desired in the market.

Mitsubishi ■l Seal The present invention includes a top having integrally molded sides and a bottom; To provide a waterproof footwear product having a shoe sole that is waterproof.

The present invention further provides that the upper part and the sole part are formed in a mutually complementary manner, and are integrally formed. The upper and sole moldings provide support to pre-selected areas of the foot. The bottom and side contours include steps.

The present invention also uses thermoplastic material to form the top and side and bottom elements. A process that combines two parts: molding the shoe sole as one piece and molding the sole of the shoe. The method of manufacturing the waterproof footwear product includes steps. The composition of the upper part and the sole part The shapes are made by forming these as described above. preferably, but not necessarily but. The upper part and the sole part are formed by injection molding, and the upper part and the sole part are formed by injection molding. and the sole are molded together.

Ward ■m assistant T is 臥 Hereinafter, the present invention will be explained with reference to the accompanying drawings, but the same components will be described as the same. Figure 1, with the same reference numerals, is a side view of an article of footwear according to the invention; 2 is a sectional view of the product taken along line 2-2 in FIG.

Men's explanation ■Details The footwear 10 of the present invention, which is a waterproof product, includes an upper part 20 and an upper part 20 attached thereto. The shoe includes a sole 30. First, the thermoplastic top 20 is sewn together at the seams or seams. (which may limit the ability of this product to be rendered waterproof) Instead, it is integrally molded as a single piece. Subsequently, the thermoplastic sole 30 is The two parts 20 and 30 are properly hardened therein before being removed from the molding equipment. Once it is formed, it will be molded as if it had been pieced together. This step is performed on the sole of the shoe. The order can be reversed, such as molding the first part and the top part second. .

The upper part 20 and sole part 30 are shaped into complementary configurations so that they are When molded into pieces according to the ry fit). Furthermore, the upper part 20 (and therefore the sole part 30) The bottom and sides should be made to match the contours of the foot (c.

(touring), such as the product in Figure 1. The ball area at the base of the big toe (C), the arch of the foot (C) ) (B) and the heel base (A) of the foot. Includes contouring to provide support to selected areas of the foot. Ru. This provides support to these areas of the foot by making them conform to the contours of the foot. This results in a footwear product that is comfortable and comfortable to wear even for long-term use.

The sole 35 of the sole 30 is preferably part of the design of this product, i.e. in FIG. The pattern of the sole as shown in cross-section (i.e. the cutout 45 therein) ), including certain desirable features. The sole 30 also preferably A metal plate is placed within the area of the sole between the heel (A) and the arch (B). It includes a rigid rod 50, which mainly supports the arch of the foot and supports this footwear. Give proper strength to that area of the product.

The thickness and shape of the wall surface 55 of the upper part 20 are not uniform, as in the conventional case. Therefore, each desired size and style of footwear product is predetermined. It changes according to the shape of the foot, and is applied to pre-selected areas of the foot in a controlled degree. It forms a supportive area.

The shape and molding of the sole 30 is tailored to complement the predetermined shape of the upper 20. It is.

Preferably, the thermoplastic material used in the upper 20, when molded, will form the sole 3. It is less hard than the one used for 0, and as a result, when the user wears it, The upper part provides adequate flexibility for the foot and leg, while the sole provides support, protection, and durability. Gives power and strength.

The footwear article of the invention is manufactured by conventional injection molding techniques incorporating molding equipment. Manufactured. Preferably, the apparatus comprises two thermoplastic injection steps. One is the process of manufacturing the upper part 20, and the other is the process of manufacturing the sole part 30. steps that occur one after the other (in any selected order). ), and as a result, the parts are joined together and shaped.

International search report. , 77M. ,/,,l'l1. .

Continuation of front page (81) Designated countries EP (AT, BE, CH, DE.

DK, ES, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE) , 0A (BF, BJ, CF, CG, CI, CM, GA, GN, ML, MR, SN, TD.

TG), AT, AU, BB, BG, BR, CH, CZ.

DE, DK, ES, FI, GB, HU, JP, KP, KR, LK, LU, M G, MN, MW, NL, NO, NZ, PL, PT, R○, RU, SD, SE, SK, UA

Claims (5)

[Claims] 1. (a) a top having integrally molded sides and a bottom; (b) an article of waterproof footwear comprising a sole attached to the upper part, The molding of the upper part and the sole part is performed complementary to each other to integrate them, and the molding of the upper part and the sole part Molding on the bottom and sides to support pre-selected areas of the foot A waterproof footwear product comprising: 2. The sole is provided with a rigid support bar in a position corresponding to the heel and arch of the foot. 2. The waterproof footwear product of claim 1, further comprising: 3. The upper part and the sole part are made of thermoplastic material, and the sole part is harder than the upper part. 3. The waterproof footwear product of claim 2, wherein the waterproof footwear product has a large . 4. (a) made of footwear using thermoplastic material to form the upper part of said product; The side and bottom elements of the product are integrally molded, (b) molding the sole of the product; (c) each step of assembling the upper part and the sole part, The molding of the upper part and the sole part is performed complementary to each other to integrate them, and the molding of the upper part and the sole part Molding of the bottom and side contours to support pre-selected areas of the foot A method of manufacturing a waterproof footwear product including a process. 5. The upper part and the sole part are sequentially molded by injection molding according to a predetermined order. 5. A method according to claim 4, characterized in that the part and the sole are molded together.