Tape measure is a commonly used measuring tool in daily life. What people often see is a steel tape measure, which is commonly used in construction and decoration, and is also one of the essential tools for families. It is divided into fiber tape measure, tape measure, waist circumference measure, etc. Lu Ban Zhi, Feng Shui Zhi, and Wen Gong Zhi are also steel tape measures.
Principle:
The reason why a tape measure can be rolled up is because there is a spring inside the tape measure. When pulling out to measure the length, it actually elongates the length of the ruler and spring. Once the measurement is completed, the spring inside the tape measure will automatically shrink, and the ruler will also shrink under the force of the spring, so the tape measure will be rolled up.
Scale:
The metric scale of a tape measure is the same as that of a tape measure, and one centimeter of the tape measure is equal to one centimeter of the tape measure, except for the Mongolian tape measure used by black hearted clothing merchants.
The reverse side of the tape measure is the market scale: market ruler, market inch; The front of the tape measure is divided into two parts, with one side having metric scales (meters, centimeters) and the other side having imperial scales (feet, inches).
The numbers on the tape measure:
The numbers on the tape measure are divided into two rows. One row of numbers is in centimeters/cm, and the other row is in inches. 1CM is about 0.3937 inches, and 1 inch is about 2.54CM. Therefore, the shorter number between the two numbers is in centimeters, and the longer number is in inches. The font for the number in centimeters is also smaller than that in inches, with 100 centimeters=1 meter. Generally, centimeters are used in practice.
Metering Method:
The head of the tape measure is loose for us to measure the size, and there are two ways to measure the size with a tape measure. One is hanging on an object, and the other is pressing against the object. The difference between the two measurement methods is the thickness of the iron plate at the head of the tape measure. The purpose of loosening the head of the tape measure is to compensate for the iron plate on the head of the tape measure when it is pressed against an object.
Classification:
The main types of tape measure are steel tape measure, followed by fiber tape measure, which is commonly seen as a tape measure. Many people say it is a cloth measure, and there is also a waist measure (both tailor's and garment measuring measures belong to this category). In the southern part of China and Hong Kong, a tape measure is commonly referred to as a tape measure or a tape measure. Its materials are PVC plastic and fiberglass, which can prevent elongation during the use of the tape measure.
The steel tape measure consists of eight components: shell, ruler bar, brake, ruler hook, lifting strap, ruler spring, anti drop protective sleeve, and labeling.
The specific details are as follows:
1. Shell: ABS new plastic, with a glossy texture on the surface; Anti drop, wear-resistant, and not easily deformed.
2. Ruler: using 50 # primary strip steel with a thickness of 10 wires (0.10mm); The ruler surface is made of the most advanced environmentally friendly paint: odorless, smooth and wear-resistant, with bright colors and clear and bright scales
3. Braking: Equipped with three-dimensional braking on the top, side, and bottom, providing a stronger sense of manual control.
4. Ruler hook: The rivet ruler hook structure is not easy to deform and ensures more accurate measurement.
5. Lifting straps: two types: rubber and nylon; High quality and high-end; Durable and sturdy, with a good hand feel.
6. Ruler spring: generally made of 50 # carbon steel and 65 # manganese material, with strong toughness and high accuracy.
7. Anti drop protective cover: Made of high-quality plastic, it prevents damage from falling and collision, enhancing durability.
8. Labeling: can be produced according to customer requirements.
Product Information:
| Item NO. |
KN-HL23171,KN-HL23172,KN-HL23173,KN-HL23174 |
| Material |
ABS,TPR,Stainless Steel |
| Size |
5M/16FT*25MM |
| Length |
5M |
| Weight |
306G |
| Feature |
Antirust,Waterproof,Automatic Locking |
Product Pictures:
){kind=link}