A tape measure with a bearing on the mandrel

Abstract

To provide a tape measure with a bearing on a mandrel, which moves more smoothly as a whole, produces less noise, and at the same time reduces the overall cost of the tape measure when pulling out and returning the tape of the tape measure. [Solution] The mandrel-mounted tape measure includes a case A1 and a case B2. The inner wall of case A and the inner wall of case B are engaged opposite each other, an aluminum mandrel 7 is inserted in the center of the inner walls of case A and case B, a measure core 9 is fitted in the center of the exterior of the aluminum mandrel, a bearing A8 is fitted into both sides of the inner wall of the measure core, the inner wall of the bearing A is fitted into the exterior of the measure core, an upper brake piece 4 is movably attached to one side of the exterior of case A and case B in common, a lower brake piece 6 is attached to one side of the bottom of the inner walls of case A and case B in common, and a wear-resistant tape mouth 5 is fitted into the bottom of one side of case A and case B in common.

Description

[Technical field]

[0001] The present invention relates to the technical field of tape measures, and more particularly to mandrel-mounted bearing tape measures. [Background technology]

[0002] Tape measures are common measuring tools in daily life. The most common type is the steel tape measure, which is commonly used in buildings and interior design and is one of the necessary tools in the home. There are fiberglass tape measures, measuring tapes, waist circumference measuring tapes, etc. Luban scale, Feng Shui scale, and Wengong scale also belong to the steel tape measure.

[0003] The rotation of the tape core of most commercially available tape measures is due to the rotation of the reinforcing ribs inside the case of the tape measure, and if the reinforcing ribs are not properly processed or the product is not perfectly installed, the tape core will swing too much when rotating. Therefore, in order to solve such problems, tape measures with bearings on the mandrel have been proposed. Summary of the Invention

[0004] SUMMARY OF THE PRESENT DISCLOSURE The present invention aims to provide a tape measure with a bearing on the mandrel in order to solve the disadvantages existing in the prior art.

[0005] To achieve the above objectives, the present invention employs the following technical means:

[0006] A tape measure with a bearing attached to a mandrel including case A and case B, the inner wall of case A and the inner wall of case B are engaged opposite to each other, an aluminum mandrel is inserted in the center of the inner walls of case A and case B, a measure core is fitted in the center of the exterior of the aluminum mandrel, bearings A are fitted into both sides of the inner wall of the measure core, the inner wall of the bearing A is fitted into the exterior of the measure core, an upper brake piece is movably attached to one side of the exterior of case A and case B, a lower brake piece is attached to one side of the bottom of the inner walls of case A and case B, a wear-resistant scale hole is fitted into the bottom of one side of case A and case B, and a cleaning member is attached to one side of case A and case B, and above the wear-resistant scale hole.

[0007] Preferably, the bottom of the upper brake piece extends to the inside of case A and case B.

[0008] Preferably, the cleaning member includes a support plate, one side of which is connected to case A and one side of which is connected to case B, respectively, a support sleeve is connected to the center of the upper part of the support plate, and a lifting rod is provided on the upper part of the support sleeve.

[0009] Preferably, the bottom of the lifting rod passes through the support sleeve and the support plate, a helical insert is screwed into it, an arc-shaped cleaning plate is connected to the bottom of the helical insert, and an external screw thread of the lifting rod is opened at its external bottom.

[0010] Preferably, a rotating sleeve is movably fitted to the upper part of the exterior of the lifting rod via a bearing B, a rotating plate is connected to the upper part of the lifting rod, a spring is fitted to the exterior of the lifting rod, the upper part of the spring is connected to the bottom of the rotating sleeve, the bottom part of the spring is connected to the upper part of the support sleeve, and the exterior of the lifting rod and the inner wall of the support sleeve are in slidable contact with each other.

[0011] Compared with the prior art, the advantages of the present invention are as follows: In this invention, the aluminum mandrel, bearing A, and tape core work together, so that when the tape of the tape measure is pulled out, bearing A moves and rotates the tape measure, while other parts do not rotate. This makes the tape measure move more smoothly as a whole, makes less noise when pulled out and retracted, and at the same time reduces the cost of the entire tape measure. [Brief description of the drawings]

[0012] [Figure 1] FIG. 2 is an axonometric view of the structure of the present invention. [Diagram 2] FIG. 2 is a plan view of FIG. 1 of the present invention. [Diagram 3] FIG. 2 is an exploded view of the structure of the present invention. [Figure 4] FIG. 4 is a plan view of FIG. 3 of the present invention. [Diagram 5] FIG. 2 is an axonometric view of the structure of the cleaning member of the present invention; [Figure 6] FIG. 6 is a bottom view of FIG. 5 of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0013] The technical means in the embodiments of the present invention will be described below clearly and completely with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, but not all embodiments.

[0014] 1 to 6. A tape measure with a bearing attached to a mandrel including a case A1 and a case B2, the inner wall of the case A1 and the inner wall of the case B2 are engaged opposite to each other, an aluminum mandrel 7 is inserted in the center of the inner walls of the case A1 and the case B2, a measure core 9 is fitted in the center of the exterior of the aluminum mandrel 7, a bearing A8 is fitted on both sides of the inner wall of the measure core 9, the inner wall of the bearing A8 is fitted on the exterior of the measure core 9, an upper brake piece 4 is movably attached to one side of the exterior of the case A1 and the case B2, a lower brake piece 6 is attached to one side of the bottom of the inner walls of the case A1 and the case B2, a wear-resistant scale opening 5 is fitted to the bottom of one side of the case A1 and the case B2, and a cleaning member 3 is attached to one side of the case A1 and the case B2, and above the wear-resistant scale opening 5.

[0015] As a technical optimization measure of the present invention, the bottom of the upper brake piece 4 extends to the inside of the case A1 and the case B2.

[0016] As a technical optimization measure of the present invention, the cleaning member 3 includes a support plate 31, one side of which is connected to the case A1 and the case B2 respectively, a support sleeve 33 is connected to the center of the upper part of the support plate 31, and a lifting rod 35 is provided on the upper part of the support sleeve 33.

[0017] As a technical optimization measure of the present invention, the bottom of the lifting rod 35 penetrates the support sleeve 33 and the support plate 31, and the helical insert 37 is screwed into it. The bottom of the helical insert 37 is connected to the arc-shaped cleaning plate 32, and the external thread of the lifting rod 35 is opened at its external bottom.

[0018] As a means for optimizing the technology of the present invention, a rotating sleeve 38 is movably fitted to the upper part of the exterior of the lifting rod 35 via a bearing B, a rotating plate 34 is connected to the upper part of the lifting rod 35, a spring 36 is fitted to the exterior of the lifting rod 35, the upper part of the spring 36 is connected to the bottom part of the rotating sleeve 38, and the bottom part of the spring 36 is connected to the upper part of the support sleeve 33, so that the exterior of the lifting rod 35 and the inner wall of the support sleeve 33 are in sliding contact with each other. The rotating sleeve 38 and the support sleeve 33 work together to support the spring 36, so that when the rotating plate 34 rotates, the spring 36 does not rotate following it.

[0019] In use, when the tape of the tape measure is pulled out, the bearing A8 moves and rotates the tape measure, and other parts do not rotate, so that when the tape measure is pulled out and returned, the overall operation is smoother, the noise is smaller, and at the same time, the overall cost of the tape measure is lower. If the scale of the tape measure is not clear, during the process of pulling out the tape, the rotating plate 34 is pressed downward, the lifting rod 35 moves downward, the spring 36 is compressed, and the tape comes into contact with the arc-shaped cleaning plate 32, thereby cleaning the tape. When the arc-shaped cleaning plate 32 needs to be removed for cleaning, the rotating plate 34 is turned to move and rotate the lifting rod 35, and its bottom is separated from the helisert 37, and the arc-shaped cleaning plate 32 can be removed for cleaning, and then it is reinstalled and reset after cleaning.

[0020] The above are merely preferred specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Those skilled in the art will recognize that, within the technical scope disclosed in the present invention, any equivalent replacement or modification made in accordance with the technical means and spirit of the present invention should be included in the scope of protection of the present invention. [Explanation of symbols]

[0021] 1. Case A 2. Case B 3 Cleaning materials 31 Support plate 32 Arc-shaped cleaning plate 33 Support sleeve 34 Turntable 35 Lifting pole 36 Spring 37 Helisert 38 Rotating sleeve 4 Upper brake shoe 5 Wear-resistant tip 6 Lower brake shoe 7 Aluminum Mandrel 8 Bearing A 9 Major Core

Claims

1. a tape measure with a bearing attached to a mandrel including a case A1 and a case B2, the inner wall of the case A1 and the inner wall of the case B2 are engaged opposite to each other, an aluminum mandrel 7 is inserted in the center of the inner walls of the case A1 and the case B2, a measure core 9 is fitted in the center of the exterior of the aluminum mandrel 7, a bearing A8 is fitted into both sides of the inner wall of the measure core 9, the inner wall of the bearing A8 is fitted into the exterior of the measure core 9, an upper brake piece 4 is movably attached to one side of the exterior of the case A1 and the case B2, a lower brake piece 6 is attached to one side of the bottom of the inner walls of the case A1 and the case B2, a wear-resistant scale opening 5 is fitted to the bottom of one side of the case A1 and the case B2, and a cleaning member 3 is attached to one side of the case A1 and the case B2, and to an upper part of the wear-resistant scale opening 5.

2. 2. The mandrel-bearing tape measure according to claim 1, wherein the bottom of said upper brake piece (4) extends to the inside of said case (A1) and case (B2).

3. The mandrel-bearing tape measure according to claim 1, characterized in that the cleaning member 3 includes a support plate 31, one side of the support plate 31 is connected to the case A1 and one side of the support plate 31 is connected to the case B2, a support sleeve 33 is connected to the center of the upper part of the support plate 31, and a lifting rod 35 is provided on the upper part of the support sleeve 33.

4. The mandrel-bearing tape measure of claim 3, characterized in that the bottom of the lifting rod 35 passes through the support sleeve 33 and the support plate 31, a helical insert 37 is screwed into it, an arc-shaped cleaning plate 32 is connected to the bottom of the helical insert 37, and the external screw thread of the lifting rod 35 is opened at its external bottom.

5. 4. A tape measure with a bearing on a mandrel as described in claim 3, characterized in that a rotating sleeve (38) is movably fitted onto the upper part of the exterior of the lifting rod (35) via a bearing B, a rotating disk (34) is connected to the upper part of the lifting rod (35), a spring (36) is fitted onto the exterior of the lifting rod (35), the upper part of the spring (36) is connected to the bottom of the rotating sleeve (38), the bottom part of the spring (36) is connected to the upper part of the support sleeve (33), and the exterior of the lifting rod (35) and the inner wall of the support sleeve (33) are in slidable contact with each other.

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