JP3177478B2 - Fingertip protection plate - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is used by attaching to work shoes in order to protect a fingertip of a worker's foot from falling objects in various indoor and outdoor works such as construction work and civil engineering work. Finger protection plate.

[0002]

2. Description of the Related Art As shown in FIG. 12, a hard metal material is used to cover the upper surface of the thumb and the four fingers of a basement as a protector to be used by attaching to work shoes such as a basement. What was shape | molded by the bottomed semi-cylindrical shape so that it was obtained conventionally is known. However, this protective device takes a lot of time and labor to form, and it becomes heavy and difficult to handle every time it is installed, and lacks practicality that makes it difficult to commercialize as a standard product. For this reason, the present applicant has proposed a fingertip protection plate having a simple structure that can be mounted at an underground location and the like to safely and reliably protect the toes of the toes and can be formed at low cost (Japanese Patent Application Laid-Open No. Hei 8-84601). ).

As shown in FIG. 13, this fingertip protection plate 20 is formed by forming a hard metal plate having an appropriate height capable of protecting a fingertip into a curved shape along the outer periphery of the thumb and the four fingers. It is fixed on the outer periphery of the upper 22 at the bottom 23 of the basement 21 in an upright state, and receives fallen objects at the upper end of the curved portion to prevent the toes from being hit directly by the toes. is there.

[0004]

The above-mentioned fingertip protection plate 20
Although there is practicality that can be easily processed and used, it is preferable that this protective plate can be further reduced in weight because the lightness, workability and wearability of the basement 21 can be remarkably improved. But,
If the protection plate 20 is simply made thin or made of a light material, the strength of the protection plate 20 is reduced and the fingertip cannot be protected safely. Therefore, an object of the present invention is to provide a fingertip protection plate that has sufficient strength for protecting a fingertip, and is further lightweight and easy to handle.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, a fingertip protection plate of the present invention is a curved upright fingertip protection plate substantially along the outer periphery of a fingertip portion of footwear, and is made of a thin hard material. A reinforcing core is provided between the inner and outer wall plates while maintaining a gap. The multilayer structure may be, for example, a honeycomb type in which a reinforcing core is provided while maintaining a gap between the inner and outer wall plates, or a hard wall plate having an appropriate thickness is partially disposed between the inner and outer wall plates as a reinforcing core. It can be provided as an integrated device. Also,
In order to reduce the weight, a multi-layer structure may be provided by providing a wall plate lighter than the inner and outer wall plates between the inner and outer wall plates made of a thin hard material. According to the above configuration, the weight can be reduced without lowering the bending strength against a load applied from above.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of the present invention will be described with reference to FIGS. In the figure, reference numerals 1 and 2
The fingertip protection plate of this example attached along the outside of the thumb 6a and the four fingers 6b of the underground 6 is shown.

As shown in FIG. 2, the protective plates 1 and 2 are provided with a reinforcing core layer 5 between an inner wall plate 3 and an outer wall plate 4 formed of a thin hard material having an appropriate height. It is formed to be curved so as to substantially match the outer shape of the fingertips of the thumb and the four fingers.

The inner and outer wall plates 3 and 4 have a small thickness, preferably a hard material having a thickness of about 0.2 to 1 mm, for example, iron,
Using a metal such as stainless steel or aluminum, or a synthetic resin, for surely protecting the fingertip against falling objects, and having a height that does not interfere with wearing, preferably a height of about 10 to 20 mm, It is formed to be curved substantially along the outer shape of the fingertip portion.

The reinforcing core layer 5 is made of a hard material such as a metal or a synthetic resin having a thin thickness, preferably about 0.2 to 1 mm, and substantially the same height as the above-mentioned two wall plates as the reinforcing core 5a. This is formed into a corrugated plate in which uneven ribs 5b are repeatedly formed on the peripheral surface, and is curved along the inner and outer wall plates.

The protective plates 1 and 2 are, for example, superposed on the inner and outer surfaces of the reinforcing core layer 5 with an inner wall plate 3 and an outer wall plate 4 coated with an adhesive on their side surfaces, and by pressing them, these members are integrally fixed. Can be formed. In addition to the adhesive, an appropriate fixing means such as welding can be used. After the inner wall plate 3, the outer wall plate 4, and the reinforcing core layer 5 are integrally fixed, the inner wall plate 3, the outer wall plate 4, and the reinforcing core layer 5 may be curved into a fingertip outer surface shape.

The reinforcing core layer 5 is provided to prevent the bending strength of the protective plates 1 and 2 from being reduced due to the weight reduction of the protective plates 1 and 2.
As shown in FIG. 4 and FIG.
And the cross section is circular, elliptical, triangular,
The reinforcing core 5 is made of a polygonal core such as a quadrangle, a cylindrical body, or a not-illustrated L-shaped, Z-shaped or other core material that can be a core.
a can be used. In this case, these reinforcing cores 5a are arranged in a line between the inner and outer wall plates 3 and 4 or at appropriate intervals, and an appropriate gap is maintained between the inner and outer wall plates 3 and 4 by an appropriate fixing means such as adhesion or welding. The protection plates 1 and 1 are integrally fixed and then integrally bent into the outer shape of the fingertip portion.
2 are formed. Of course, the inner and outer wall plates 3 and 4 which have been formed in a curved shape in advance are opposed to each other, and the reinforcing core 5a is disposed therebetween,
The protection plates 1 and 2 may be integrally fixed to each other.

The protective plates 1 and 2 thus formed can be attached to the underground 6 by appropriate means.
One example is the base 8 where the upper 7 is bonded
After vulcanization molding, or forming a base 6 by a normal processing step of suturing the upper 7 and the base 8 together,
The elastic material pieces 9 and 9 made of rubber or synthetic resin having appropriate elasticity are firmly fixed to the outer peripheral side surfaces of both fingertips with an adhesive, and the outer peripheral surfaces of these elastic material pieces and the upper 7 The basement 8 that slightly protrudes outward from the edge
Protective plates 1 and 2 are set upright on the overhanging edge 8a, and both plates are firmly adhered together with the overhanging edge 8a via an adhesive, and the two plates are fixed every time underground. It can be carried out.

The protection plates 1 and 2 attached to the fingertips of the basement 6 as described above are fixed to the peripheral surfaces of the elastic pieces 9 and 9, so that both plates are formed on the outer peripheral side surfaces of the fingertips 6a and 6b. Stably fixed along the part, even if a heavy object falls on your fingertips during wear, the falling object is reliably received at the upper ends of the protective plates 1 and 2 and the impact of the fall is buffered. Therefore, there is no danger of the falling object directly hitting the fingertip and causing injury, and the work can be performed safely and promptly.

In this case, the inner and outer wall plates 3 and 4 of the protective plates 1 and 2 are each formed of a thin hard plate, and a gap is provided between both wall plates and between the both wall plates and the reinforcing core 5a. Protective plates 1 and 2 are lighter in weight because they are provided in a honeycomb structure in which the toe is maintained. In addition, the comfort can be improved. In addition, protective plates 1, 2
Has a reinforcing core 5a fixed vertically between the inner and outer wall plates 3 and 4 and is integrated into a single plate having an appropriate thickness. It is difficult to bend, and it is possible to maintain high bending strength against a load applied from above.

FIGS. 6 to 9 show another embodiment of the present invention. The protective plates 1 and 2 shown in FIG. 6 have a curved wall formed as a reinforcing core layer 5 disposed between the inner wall plate 3 and the outer wall plate 4 made of a thin hard material so as to be superimposable on both wall plates. Board 51
Is used. The wall plate 51 can be formed to have an appropriate thickness using a hard material that is lighter than the inner and outer wall plates 3 and 4, for example, a light metal such as aluminum, an alloy, or plastic. According to the protective plates 1 and 2 having such a configuration, if the wall plate 51 is formed by using a lightweight and high-strength material, the protective plate can be formed without providing a gap in the reinforcing core layer 5 as described above. Maintaining strength and reducing weight are achieved. In addition,
As shown in FIG. 7, the wall plate 51 is formed to be thin,
A protective plate may be formed by laminating a plurality of these and fixing them together with the inner and outer wall plates 3 and 4 to form a protective plate.
It is easier to process the protective plate than using a single material and integrally forming it to an appropriate thickness, and the cost can be reduced.

The protective plates 1 and 2 shown in FIG. 8 are formed by bending a hard material having an appropriate thickness as the reinforcing core layer 5 so as to be able to be laminated between the inner and outer wall plates 3 and 4 and have a peripheral surface portion. Notch recess 52
a using a wall plate 52 which is lightened by providing a, FIG.
The protective plates 1 and 2 shown in Fig. 1 use a hard piece 53 of an appropriate length having the same height as the inner and outer wall plates 3 and 4 as the reinforcing core layer 5,
A plurality of these are disposed between the inner and outer wall plates 3 and 4 with a gap therebetween, and are fixedly integrated with both wall plates to form a protection plate. It is preferable that the hard pieces 53 are arranged at the front end portions or both side portions of the protection plates 1 and 2 that are particularly easily deformed when a heavy object falls. In this way, the thickness of the reinforcing core layer 5 can be made wide or narrow,
Even if the reinforcing core layer 5 is partially laminated between the inner and outer wall plates 3 and 4, if the reinforcing core layer 5 is formed of a high-strength material,
The overall strength of the protection plates 1 and 2 can be maintained and the weight can be reduced.

The protective plate of the present invention is used by being attached to each basement, and as shown in FIG.
It can also be used by fixing it to the toe portion of No. 0. in this case,
As shown in FIG. 11, the protection plate 11 extends upward along a contact portion between the narrow groove 12 b where the protection plate 11 fits into the overhanging edge 12 a of the vulcanized shoe sole 12 and the upper 13, for example. A protruding projection 12c is formed, and an adhesive is applied to the narrow groove 12b of the shoe sole 12 adhered to the suspended upper 13, and then the protection plate 11 is fitted into the groove. A rubber sheet can be adhered to the peripheral surface of the elastic member 11 as an elastic material piece 14. At this time, the rubber sheet may be unvulcanized, but needs to undergo a vulcanization step later. When manufacturing the work shoes 10, the protective plate 11 can be attached after the upper 13 is bonded to the shoe sole 12.
It is not necessary to apply any special processing to 3, and it can be easily formed only by bending the protective plate 11, so that the production is not troublesome and the production cost can be suppressed.

[0018]

As described above, according to the fingertip protection plate of the present invention, it is possible to use a thin hard plate and reduce the material used and the weight without reducing the bending strength against a load from above. Even if a heavy object falls while wearing the footwear to which it is attached, the falling object can be reliably received at the upper end of the protection plate to prevent the fingertip from being damaged, and to provide safe protection. In addition, it can be manufactured at low cost without the need for processing, and because it is lightweight, the load applied to the toe with the protection plate attached to the footwear can be reduced, and the freedom of toes The degree and athletic performance are not different from ordinary work shoes, and a good wearing feeling and comfortable feeling can be obtained, and the handling is extremely convenient.

[Brief description of the drawings]

FIG. 1 is an external view of a basement to which a protective plate according to an embodiment of the present invention is attached.

FIG. 2 is an exploded perspective view of the protection plate of FIG.

3A is an enlarged sectional view of a toe showing an underground state of FIG. 1 in which a protection plate is attached, and FIG. 3B is an enlarged longitudinal sectional view of a toe.

FIG. 4 is an external view of another embodiment of the protection plate.

FIGS. 5A to 5D are external views showing the shapes of other reinforcing cores.

FIG. 6 is an exploded perspective view of another embodiment of the protection plate.

FIG. 7 is an external view of another embodiment of the protection plate.

FIG. 8 is an exploded perspective view of another embodiment of the protection plate.

FIG. 9 is an exploded perspective view of another embodiment of the protection plate.

FIG. 10 is an external view of a work shoe to which the protective plate of the present invention is attached.

FIG. 11 is an exploded cross-sectional view of a member of a toe portion of the work shoe of FIG. 10;

FIG. 12 is a view for explaining a conventional protective device attached to each basement.

FIG. 13 is a view for explaining a conventional protection plate attached to each basement.

[Explanation of symbols]

 1,2,11 Protective plate 3 Inner wall plate 4 Outer wall plate 5 Reinforcement core layer 5a Reinforcement core 5b Rib 6 Underground 7 Upper 8 Underground each time 10 Work shoes

Claims (3)

(57) [Claims] 1. A curved upright fingertip protection plate substantially along the outer periphery of a fingertip portion of footwear, wherein a reinforcing core is provided between both inner and outer wall plates made of a thin hard material and a reinforcing core is provided to form a multilayer structure. A fingertip protection plate characterized by the following. 2. A hard wall plate having an appropriate thickness is used as a reinforcing core,
The fingertip protection plate according to claim 1, wherein the fingertip protection plate is partially disposed between the inner and outer wall plates and integrated. 3. A curved upright fingertip protection plate substantially along the outer periphery of a fingertip portion of footwear, wherein a wall plate lighter than the inner and outer wall plates is provided between the inner and outer wall plates made of a thin hard material. A fingertip protection plate having a layer structure.