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A tape measure

A technology of tape measure and tape measure, applied in bendable ruler, measuring device, instrument, etc., can solve the problems of poor hand feel, strong impact of tape measure, poor effect, etc., to reduce discomfort, reduce pull-out resistance, reduce impact effect

Inactive Publication Date: 2007-05-23
HARA DOKI KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, applying the brake to the rotating reel is less effective in keeping the tape at its stop, and the tape sometimes moves in the direction of rewinding during the measurement operation
In addition, stoppers are inserted between the tape surface protruding from the rotating reel and the tape surface wound on the rotating reel for braking, although this method can keep the tape at a stop , but when the ruler tape is stopped during the rewinding process of the pulled-out tape, the impact of the tape stop is very strong and the hand feeling is poor
Moreover, since the stopper is inserted between the above-mentioned tape surfaces by imparting strong potential energy, there will be greater resistance when the tape is pulled out.

Method used

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Embodiment Construction

[0055] The tape measure of the present invention is described according to the following drawings. Fig. 1 is a side view of the tape measure of the present invention with half of the casing removed, 1 is the brake operation button when the brake is released, and 1a is the shaft of the brake operation button 1 , 2 is the brake roller that applies the brake to the tape, and 3 is the leaf spring that always gives potential energy (pushing pressure) to the brake roller 2 in the braking direction. The brake roller 2 is connected to the brake operating button 1 via a lever 4 and an arm 4a. In addition, the braking of the tape by the brake roller 2 is released by pushing the brake operation button 1 in the direction of the arrow.

[0056] 5 is an engaging part that engages the brake roller 2, 6 is a ruler tape, 6a is a pull hook, 7 is a rotating reel that winds the ruler tape 6, and 7a is set in the rotating reel 7 to wind the ruler tape 6. 8 is the casing of the tape measure, 8a is...

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PUM

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Abstract

The present invention provides a measuring tape with the self-locking type braking mechanism which can reduce the impact upon stopping the tape while winding up the tape having pulled out, is excellent in keeping the tape in the halting condition, and can reduce the resistance upon pulling out the tape. The brake operation means at least comprises a brake operation button operable from an outside of a housing, a braking roller formed of a elastic material connected to the brake operation button for applying a potential energy to a tape in braking direction via leaf spring. The braking roller is wedged between an upper surface of the tape coming out of a rotation drum and a predetermined member above the tape to apply the brake to the tape.

Description

technical field [0001] The invention relates to a tape measure, which has a brake mechanism in an automatic locking mode, and the brake mechanism can make the pulled-out tape automatically stop at the pulled-out position. Background technique [0002] In the prior art, the brake of the tape on the measuring tape is mostly used in the following way, that is, after the tape is pulled out from the casing, the brake is operated to stop the tape at the pulled-out position. Wherein, the ruler tape brake also adopts the automatic locking mode, and when adopting this mode, the ruler tape can be automatically stopped at the position after it is pulled out from the housing. [0003] This automatic locking method has the following form, that is, the tape is stopped by braking the rotating reel that is endowed with potential energy along the rewinding direction of the tape; Insert a stopper between the surface of the tape wound on the rotating reel to stop the tape. The method of inse...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B3/10
CPCG01B2003/1012G01B3/1005G01B2003/1035
Inventor 原照刚
Owner HARA DOKI KK
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