Anti-Sport Safety Shoes Standards

Protective toe safety shoes (boots) are shoes that are mounted on the toe cap with a certain impact resistance and are made of leather or other materials to protect the toes from damage (boots).

First, technical requirements

Protecting toe safety shoes (boots) is a product developed in China in the early 1980s. In 1983, the state approved (Leather Safety Shoes) (GB 4014-83). In 1993, on the basis of the original standard, the former Ministry of Labor promulgated the Standard for Protecting Toe Safety Shoes (LD50-94) in accordance with international standards (ISO/CD8782-1993).

Protecting toe safety shoes (boots) should meet the following requirements.

1. General technical requirements

(1) Structure: made of steel inner header; toe cap inner pad; leather shoe upper; shoe eye; shoelace; shoe ear; shoe waist; heel protection; month-shaped heel; shoe waist; shoe rear pad; insole; (膛) bottom; fill the core; the composition of the forefoot and so on.

(2) Outsole thickness: Direct injection, vulcanized, adhesive outsole thickness (without tooth thickness) not less than 4mm; full rubber and all-polymer boots full thickness not less than 6mm, tooth thickness ( The pattern) is not less than 3mm, the height of the boot teeth of other materials is not less than 2.5mm, and the thickness of any part of the outer sole without pattern (tooth) is not less than 6mm.

(3) Appearance quality: There must be no obvious helpers with disability, discoloration, heavy needles, jumpers, broken wires, uneven stitching, open plastics, excessive sulfur, sulfur, sulfur, and skewed heads. .

2. Safety performance

(1) Pressure resistance: Place the toecap 25mm from the inside of the head (3mm at the end of the cutting process. Place it on the platform of a pressure tester with a tolerance of 1%. Put 35mm in the toe cap. 22mm diameter plasticine cylinder, then apply force to the required force of 5mm/min (2mm/min for 1min, then restore the force to zero. Remove the compressed plasticine and measure the height with a caliper. The value measured at the lowest level is actually measured and its value should be in compliance with the regulations.

(2) Impact resistance: Place the toe cap and the cylindrical rubberized clay on the impact machine, fix the inspected toecap and lift the impact hammer (23kg (0.2kg) to the desired height and then free fall. Impact on the toe, remove the plasticine and measure it with a caliper, the value of which should comply with the regulations.

(3) Pressure resistance and impact resistance requirements of the inner package head: The test method is the same as that of the toe cap test method, but the deformation spacing of the inner package head should not be less than 22 mm after the test.

(4) Anti-corrosion requirements for the inner head: Due to the perspiration and moisture of the foot, the inner head can be corroded, which affects the quality of the shoes. Therefore, the inner header should have corrosion resistance. The requirement is to immerse one end of two white filter papers (100m wide and 150mm long) in a 1% NaCl solution and the other end is placed above and below the inner package head. After 48 hours, the filter paper was removed, and the area of ​​each spot (mm2) was measured by checking the traces of corrosion caused by the NaCl solution. Corrosion spots must not exceed 5 points and each spot must not exceed 2.5 mm2.

Second, product classification

1. According to fabric material:

(1) Anti-Skull Safety Shoes (boots);

(1) Cow suede safety shoes (boots);

(3) Pig suede safety shoes (boots);

(1) Pig smooth-faced safety shoes (boots);

(1) White canvas flood protection safety shoes (boots).

(6) Plastic surface protection safety boots

2· According to the craft:

(1) Note pressure shoes;

(1) Adhesive shoes;

(1) Molded vulcanized shoes;

(1) Sewing shoes

(1) Compound process glue line sewing shoes.

At present, the process for safety shoes is based on injection molding, molding, and adhesives, and there are fewer single seams.

Third, the number of specifications

Protective toe safety shoes (boots) are available in low, high, half, and high tube versions.

According to the toe tolerance pressure and impact resistance size is divided into An1. An2. An3. An4. And An5 and other five levels.

There are three types of shoes, three types of three and a half and four types, specifications are 22 ~ 28 1/2 and other varieties.

Fourth, shoe dirt production characteristics

The inner head (from the tip to the end of the inner head and the horizontal distance of 40-60mm, height of 35mm, curling larger than 3mm) is placed between the shoe and the shoe, and a sliver is added to the end of the inner head. The utility model can not only make the head and the shoe upper joint smooth, but also increase the folding endurance and comfort. In the back of the mouth with sponge sponge to protect the ankle, comfortable to wear.

V. Inspection of the safety shoes (boots) for flood prevention

Anti-hit safety shoes are products that the country implements production licenses.

1. Comprehensive determination principle: Outsole resistance, abrasion resistance, shoe peel strength, shoe resistance to compression and impact resistance must be qualified, and the number of other items allowed to fail must not exceed two, otherwise it is judged as unqualified.

2. Sample inspection: 5 samples are tested on the inner header, and the appearance quality, corrosion resistance (only in the metal inner header), compression resistance and impact resistance are examined. Among them, the compression resistance and impact resistance must meet the requirements, and the other items that are allowed to fail must not exceed one item, otherwise it is unqualified.

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