JP5357125B2 - Safety underground tabi - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a safety split-toed rubber-soled shoe that can prevent an incised wound accident of the instep with a chain saw or a mowing machine by incorporating a protective member that does not take the degree of freedom of the instep while corresponding to a protective core. <P>SOLUTION: The safety split-toed rubber-soled shoe includes, in a toe section, the protective core 11 made of a metal face material or a resin face material shaped to cover the toes. A blade-proof cover 2 including a metal net 24 shaped to cover the instep in such a size that its front edge 241 extends along the opening edge 111 of the protective core 11 and that its rear edge 242 does not reach the ankle, and a surface cloth 21 covering the outside of the metal net 24, is put on the outside of an upper 12 and integrated. <P>COPYRIGHT: (C)2012,JPO&amp;INPIT

Description

  The present invention relates to a safety underground socks that prevent an accidental foot incision caused by a blade of a chain saw or a mower.

  Conventionally, in order to protect the foot from falling objects, a safety underground tabi bag that protects the toes with a protective core (iron core, resin core) made of a metal surface material or resin surface material built into the tip of the foot (Patent Documents 1 to 5) 3) has been proposed. In order to form a finger crotch, the safety underground tabi disclosed in Patent Documents 1 to 3 individually incorporates a protective core that covers the thumb and a protective core that covers the remaining four fingers. Similarly, safety shoes with a built-in protective core can be seen. In the case of safety shoes, basically only one protective core that covers all toes is built in, but there are also two built-in protective cores that individually cover the thumb and four fingers like an underground socks (Patent Literature). 4 and Patent Document 5).

JP2003-204801 JP 09-191903 A JP 09-098801 A JP 2001-327306 JP JP2003-079403

  Logging and mowing operations in mountain forests are favored exclusively for underground socks as work shoes. However, because the work site is sloping ground and the feet are unstable, it is difficult to handle chainsaws and mowers stably even in underground tabi, the operator himself points the chainsaw or mower blades at his feet, A cut accident that hurts the foot may occur. In this case, the blades of chainsaws and mowers often hit the instep rather than the toes. From this, it can be considered that a protective core is built in not only on the toes but also on the instep with reference to the safety underground socks disclosed in Patent Documents 1 to 3.

  However, the instep is a part that moves up and down around the base of the toes, and if covered with a highly rigid protective core, the degree of freedom is lost, making it difficult to use as a safety underground socks. Thus, in order to protect the instep, the structure of the safety underground tabi with the built-in protective core disclosed in Patent Documents 1 to 3 is preferable, but when the instep is covered with the built-in protective core, There is a problem that the degree of freedom of the instep is lost and it becomes difficult to use it as safety shoes. Therefore, we examined the development of a safety underground socks that correspond to a protective core and that have built-in protective members that do not detract from the freedom of the instep and can prevent incision of the instep caused by chainsaws or mowers.

What was developed as a result of the study was a safety underground tabi with a built-in protective core made of a metal or plastic surface covering the toes at the tip of the foot, with the leading edge along the opening edge of the protective core and the trailing edge Covering the outside of the upper with a blade-proof cover composed of a metal net that covers the instep with a size that does not hang on the ankle and the outer cloth that covers the outside of the metal net , the upper is A safety underground tabi is characterized in that an upper protective cloth woven or knitted with aramid fibers is provided on the inner side within a range spanned between the opening edge of the protective core and the front edge of the metal net . The safety underground tabi of the present invention is a protective member that protects the instep of the safety underground tabi with a built-in protective core at the tip of the foot. And the instep is protected from the blades of the chainsaw and the mower by the metal net. Now, the present invention is Ru also be applied to safety shoes with built-in protection core.

  The metal net is preferably woven or knitted with a stainless steel strip having a high antirust performance. This metal net is a flexible metal face material, so long as it has the size to follow the instep, but at least "the front edge is along the opening edge of the protective core and the rear edge is on the ankle. It is desirable not to hang. Here, “the front edge is along the opening edge of the protective core” means that the front edge of the metal net is along the edge of the opening provided behind the protective core into which the toes are inserted = the opening edge. means. “The trailing edge does not hang on the ankle” means that the trailing edge of the metal net does not reach the ankle that bends beyond the instep. The outer side of the metal net and the cover protective cloth (described later) means the upper surface side according to the inside and outside of the safety underground tabi, and the inside also means the lower surface side according to the inside and outside of the safety underground tabi.

  A surface cloth is a surface material of the magnitude | size which covers the said metal net, and a raw material will not be ask | required if it is a magnitude | size which a metal net does not expose outside. However, it is desirable to use the same fabric as the upper shell from the viewpoint of providing the exterior appearance of the safety underground tabi. In this case, the front fabric is sewn at the front, rear and side edges to the upper. Thus, the metal net constituting the blade-proof cover is confined in the closed space sandwiched between the outer cloth and the upper shell. From this, if the metal net has an outer shape similar to the closed space, the metal net can be confined in the closed space and fixed without being displaced.

  The upper cover may be provided with an upper protective cloth woven or knitted with aramid fibers as long as it spans between the opening edge of the protective core and the front edge of the metal net. Aramid fibers (for example, Kevlar (registered trademark), etc.) are reinforcing fibers that are also used in blade-proof clothing. A crust protection cloth woven or knitted with such aramid fibers makes it difficult for the blades of chainsaws and mowers to enter between the opening edge of the protective core and the front edge of the metal net, and breaks the crust. The blade prevents the toes and insteps from being damaged. However, since the upper protective cloth is a flexible face material, it does not hinder the degree of freedom of the instep.

  For the blade-proof cover, a resin sheet or a rubber sheet is preferably applied to the inside of the metal net. The resin sheet or rubber sheet addressed to the inside of the metal net is interposed between the metal net and the upper shell to prevent the metal net from damaging the upper shell, and the metal net through the upper shell. Soften the feel of the instep. The blade-proof cover is preferably covered with a resin sheet or a rubber sheet on the outside of the metal net. The resin sheet or rubber sheet placed on the outside of the metal net is interposed between the metal net and the front cloth, and prevents the metal net from damaging the front cloth.

  For the blade-proof cover, a cover protective cloth woven or knitted with aramid fibers may be applied to the inside of the metal net. The safety underground tabi of the present invention prevents the blades of chainsaws and mowers by the metal net that constitutes the blade protection cover, and protects the instep, but even the metal net may be cut depending on how the blade hits There is. Cover protection cloth addressed to the inner side of the metal net cuts the metal net and receives the blade of a chain saw or grass mower that has been sharpened, and the blade breaks the upper shell and damages the instep. To prevent. From now on, the cover protection cloth addressed to the inside of the metal net works as a fail-safe member.

  In addition, the blade protection cover has a cover protective cloth woven or knitted with aramid fiber protruding from the rear edge of the metal net in a range extending from the instep to the ankle, and covers the outer surface of the cover protective cloth. Good. The cover protective cloth protruding from the rear edge of the metal net may be configured from a portion obtained by extending the cover protective cloth directed to the inside of the metal net toward the ankle. The safety shoes of the present invention protect the instep by preventing the blade cover from passing through the blade of the chainsaw or the mower. For this reason, the blade may be directed along the instep toward the ankle. The protective cover cloth that protrudes from the rear edge of the metal net will kill the momentum and catch the blade of a chainsaw or mower along the instep toward the ankle. To prevent. From now on, the cover protection cloth protruded from the rear edge of the metal net works as a fail-safe member.

  The safety underground tabi of the present invention adds a blade cover that covers the upper shell to a safety underground tabi that has a built-in protective core made of a metal surface material or resin surface material covering the toes at the tip of the foot. This eliminates the risk of damage from the chain to the instep by the blades of chainsaws and mowers. As a result, it is possible to prevent an accidental cut of the instep during logging or mowing in a forest. In addition, since the blade-proof cover according to the present invention is composed of a flexible metal net, it does not impair the movement of the instep, and the degree of freedom of the instep is as same as the conventional safety underground socks with only a protective core. It has the advantage that can be secured.

  The upper protective cloth makes it difficult for the blades of the chainsaw and the mower to enter from between the opening edge of the protective core and the front edge of the metal net, and improves the safety of the safety underground tabi of the present invention. The resin sheet or the rubber sheet protects the upper shell and the outer cloth from the metal net, respectively, and softens the feel of the metal net against the instep so as not to impair the feeling of wearing the safety underground tabi of the present invention. The cover protection cloth protects the insteps and ankles from the blades of chainsaws and mowers that break against the metal net or hit the blade-proof cover, and enhance the safety of the safety underground tabi of the present invention.

It is a perspective view showing an example of a safety underground tabi to which the present invention is applied. It is sectional drawing of the safety underground tabi of this example. It is a top view of a blade-proof cover. FIG. 4 is a plan view corresponding to FIG. 3 showing only the metal net and cover protective cloth of the blade-proof cover. It is a disassembled perspective view showing the lamination | stacking relationship of the blade-proof cover of this example.

  Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. As shown in FIGS. 1 and 2, for example, the safety underground tabi of the present invention can be configured to include two protective cores 11 and 11 that separately cover the thumb and the remaining four fingers. The safety underground tabi 1 of this example has two protective cores 11 and 11 built in the toes of the upper 12 where a pair of front and rear mating parts 121 and 121 extending from the ankles are provided with a gavel 122 and a hanging thread 123, respectively. Cover the toe of the upper 12 in the area covering the protective core 11 with the tip 15 and provide safety measures with a spiked sole 14, and the anti-blade cover 2 of the present invention to the instep of the upper 12 It is put on and integrated.

  The protective core 11 is built into the inside of the toe of the upper shell 12, and by inserting the toes into a space formed between the insole 13 fixed to the upper surface of the shoe sole 14, an external force is applied from above. Protect the toes against. Since the safety underground tabi 1 of this example is a kind of so-called underground tabi, there are two protective cores 11 and 11 that individually cover the thumb and four fingers to form a finger crotch. From now on, in the case of safety shoes that do not require finger crotch, it is sufficient to incorporate only one protective core that integrally covers the thumb and four fingers. On the other hand, in the case of safety shoes with crotch fingers, two protective cores are built in like the safety underground tabi 1 of this example. Moreover, although the safety underground tabi 1 of this example uses the shoe sole 14 with the spike, it may be a flat shoe sole in which a meandering or bending groove is carved as usual.

  As shown in FIGS. 3 to 5, the blade-proof cover 2 is formed by laminating a front cloth 21, a felt 22, an outer rubber sheet 23, a metal net 24, an inner rubber sheet 25 and a cover protective cloth 26 from the outside to the inside. Further, each layer is integrated with a plurality of sewing lines 28 so as not to be misaligned, and further, an edge cloth 27 is sewn to the front edge and the rear edge, and the upper shell of the safety underground tabi 1 as in this example, for example. The front edge, the rear edge, and the side edge are sewn on the cover 12 and integrated with the upper 12. The felt 22 functions as a buffer member until the blade of the chainsaw or the mower reaches the metal net 24. The outer rubber sheet 23 prevents the metal net 24 from damaging the outer cloth 21. The inner rubber sheet 25 prevents the metal net 24 from damaging the upper shell 12 and softens the tactile sensation of the metal net 24 that has unraveled the upper shell 12 with respect to the instep.

  The outer rubber sheet 23, the metal net 24, and the inner rubber sheet 25 have outer shapes that are aligned with the metal net 24. The metal net 24 is a net body knitted with a stainless steel strip having high antirust performance. The front edge 241 has a W-shape in a plan view in which arcs along the opening edge 111 of each of the protective cores 11 and 11 protrude symmetrically toward the toes. The trailing edge 242 has a gentle W shape in a plan view with the center projecting toward the ankle within a range not hanging on the ankle. Then, when both ends of the front edge 241 and the rear edge 242 are connected by straight side edges 243 and 243, the front edge 241 is a trapezoidal narrow upper side, the rear edge 242 is a trapezoidal wide lower side, and the entire metal net 24 is substantially trapezoidal in plan view. (See FIG. 4). Both the outer rubber sheet 23 and the inner rubber sheet 25 are shaped into a substantially trapezoidal shape (see FIG. 5) in plan view that is equal to the metal net 24.

  The outer shape of the front cloth 21, the felt 22 and the cover protective cloth 26 is aligned with the cover protective cloth 26. The cover protection cloth 26 is a fabric knitted with aramid fibers. The entire cover protective cloth 26 has a substantially trapezoidal outer shape in plan view corresponding to the metal net 24, and has a substantially home base shape in plan view that protrudes toward the ankle when the blade protection cover 2 is integrated with the upper shell 12. It has a plan view shape (see FIG. 4) provided with a protruding portion 261. Each of the front cloth 21 and the felt 22 has a shape in plan view equivalent to that of the cover protective cloth 26, and has similar protrusions 211 and 221 (see FIG. 5).

  The 6-layer structure of the blade-proof cover 2, which is a laminate of the front cloth 21, felt 22, outer rubber sheet 23, metal net 24, inner rubber sheet 25, and cover protective cloth 26, is the blade of a chain saw or mower first with the felt 22 In addition to catching the blades of the chainsaw and mower with the metal net 24, even if the metal net 24 is broken, the cover protection cloth 26 catches the blade of the chainsaw and mower with the cover. To do. The metal net 24 has a certain degree of flexibility, although not as much as the cover protective cloth 26. Therefore, the metal net 24 does not restrain the instep strangely and does not impair the feeling of wearing the safety underground tabi 1.

  In addition, the three-layer structure of the blade cover 2 in which only the front cloth 21, the felt 22 and the cover protection cloth 26 are laminated, the chain saw and the blade of the mower that have been hit by the six-layer part are further killed by the felt 22. The ankle is protected by receiving it with the cover protection cloth 26. The three-layer structure part of the blade-proof cover 2 only protrudes from the center toward the ankle with a specific width with respect to the rear edge 242 of the metal net 24, and has a highly flexible outer cloth 21, felt. 22 and the cover protection cloth 26, it is more flexible than the six-layer portion including the metal net 24 and does not impede the freedom of the ankle.

  The safety underground tabi 1 of this example is an aramid fiber in the range spanning between the opening edge 111 of the protective core 11 and the front edge 241 of the metal net 24 (see FIG. 2), in addition to the blade protection cover 2 described above. A knitted belt-shaped upper protective cloth 16 is sewn inside the upper 12. As a result, the space 124 between the opening edge 111 of the protective core 11 and the front edge 241 of the metal net 24 becomes a portion in which the upper shell 12 is laminated on the outer side and the upper protective cloth 16 is laminated on the inner side. Even if the chain saw or the blade of the mower that hit the layer part breaks the upper shell 12, it is received by the upper protective cloth 16, thereby protecting the toes.

1 Safety underground tabi
11 Protection core
111 Opening edge
12 crust
124 Between the opening edge of the protective core and the front edge of the metal net
16 Upper protective cloth 2 Blade protection cover
21 Table cloth
22 felt
23 Outer rubber sheet
24 metal net
25 Inside rubber sheet
26 Cover protective cloth

Claims (5)

In a safety underground tabi with a built-in protective core made of a metal surface material or resin surface material covering the toes at the tip of the foot,
A blade-protecting cover consisting of a metal net with a shape that covers the instep so that the front edge is along the opening edge of the protective core and the rear edge does not hang on the ankle, and a top cloth that covers the outside of the metal net. It is integrated on the outside of the skin ,
The upper is covered with a protective fabric woven or knitted with aramid fibers in the range spanning between the opening edge of the protective core and the front edge of the metal net. . Stab cover according to claim 1 Symbol placement of safety jikatabi was held against the resin sheet or a rubber sheet on the inside of the metal net. 3. The safety underground tabi according to claim 1, wherein the blade-proof cover has a resin sheet or a rubber sheet placed on the outside of the metal net. Stab cover claims 1-3 Safety jikatabi according to any one that held against the woven or knitted cover protective fabric of aramid fibers on the inside of the metal net. The anti-blade cover has a cover protective cloth woven or knitted with aramid fiber in a range extending from the instep to the ankle, protruding from the rear edge of the metal net, and covering the outer surface of the cover protective cloth The safety underground tabi according to any one of Items 1 to 4 .

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