Measuring tape

Abstract

When the measuring tape is used, a tape band of the measuring tape is cylindrical, and compared with a traditional measuring tape, the sectional area of the tape band is increased, so that the straightness of the tape band is improved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of measuring tools, and in particular to a measuring tape. Background Art

[0002] As a convenient measuring tool, tape measures are widely used in various scenarios. The straightness of a tape measure is usually about one to two meters. When measuring a large distance, the tape is easy to bend, affecting the user experience. In addition, since the material of the tape measure is mostly metal sheet, its edge is relatively sharp, and it is easy to scratch the user's hand when the tape rebounds. Summary of the invention

[0003] The purpose of the present invention is to provide a tape measure to solve the problems of the existing tape measure that the tape is easy to bend and the tape is easy to scratch the hand.

[0004] The technical solution adopted by the present invention is a tape measure, including: a tape box, a tape, a tape reel, a tape hook, etc. The opening of the tape box is circular or approximately circular, the tape is made of a material with high toughness, and its material width is much higher than the width of a traditional tape. The tape material after processing is surrounded along its long axis to form a cylindrical shape. The tape is flattened and stored in the tape box and coiled on the tape reel. A tape hook is installed on the head of the tape, and scale lines are printed on the bottom of the tape.

[0005] When the above-mentioned tape measure is in use, the tape is pulled out of the tape box. When the pulled tape passes through the opening of the tape box, the elastic potential energy of the tape is released to form a cylindrical or approximately cylindrical shape. Compared with the arc-shaped tape of a traditional tape measure, the cross-sectional area of ​​the tape is increased, thereby increasing the straightness of the tape.

[0006] Because the two wings of the tape are rolled inward, the user's hands are prevented from coming into contact with the sharp edges of the tape, reducing the risk of the tape scratching the hands.

[0007] The scale lines on the tape are printed on the bottom surface of the tape. When the tape is pulled out and closed, the scale lines appear on the outer wall of the cylindrical tape, making it convenient for users to observe the scale. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 Shown is a schematic diagram of the appearance structure of the tape measure disclosed in the present invention;

[0009] Figure 2 Shown Figure 1 The tape measure in the figure has a partial outer shell removed; Implementation

[0010] The present disclosure is described in detail below with reference to the accompanying drawings and specific embodiments.

[0011] Figure 2In the embodiment shown, the measuring tape 1 includes: a ruler box 2, a ruler tape 3, a ruler tape reel 4, a ruler box opening 5, a ruler tape hook 6, etc. The ruler box opening 5 is circular or approximately circular, the ruler tape 3 is received in the ruler box 2 and wound on the ruler tape reel 4, a ruler hook 6 is installed at the head of the ruler tape 3, and scale lines 7 are printed on the bottom surface of the ruler tape 3.

[0012] The tape 3 is made of a strip steel material with relatively high toughness, and its material width is much wider than that of an ordinary tape measure.

[0013] The tape 3 manufactured through the processes of quenching, printing, pressing and the like is cylindrical in its zero potential energy state.

[0014] When assembling the tape measure 1 , the cylindrical tape measure 3 is flattened and wound onto the tape measure reel 4 . At this time, the tape measure 3 has a relatively high rebound potential energy.

[0015] When the tape measure 1 is in use, the tape 3 is pulled out of the tape box 2 by pulling the tape hook 6. When the pulled tape 3 passes through the tape box opening 5, the rebound potential energy of the tape 3 is released, and the tape is rolled inward to return to a cylindrical shape in a zero potential energy state. This cylindrical tape has a larger cross-sectional area than the arc-shaped cross-section of a traditional tape measure, and the force on the surface of the cylindrical tape is evenly dispersed, so it can withstand a larger force, thereby effectively increasing the straightness of the tape.

[0016] The ruler tape 3 pulled out from the ruler box 2 releases potential energy, and the two wings are rolled inward, thereby preventing the user's hands from contacting the sharp edges of the ruler tape 3, reducing the risk of scratching the user's hands.

[0017] The scale lines 7 on the tape 3 are printed on the bottom surface of the tape 3. When the tape 3 is pulled out and rolled inward, the bottom surface is correspondingly turned outward, and the scale lines 7 appear on the outer wall of the cylindrical tape 3, making it convenient for the user to observe the scale lines 7.

Claims

1. A tape measure, comprising a tape box and a tape, characterized in that When the tape measure is used for measurement, the tape is cylindrical or approximately cylindrical.

2. The tape measure according to claim 1, characterized in that The opening of the ruler box is circular or approximately circular.

3. The tape measure according to claim 1, characterized in that The tape is printed with scale lines, which are printed on the bottom surface of the tape.

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