Ticker-tape timer

A technology of ticking timers and paper tapes, applied to instruments, metronomes, teaching models, etc., can solve the problems of affecting the experimental results, inconvenience, experimental data errors, etc., and achieve the effect of ensuring accuracy

Inactive Publication Date: 2016-04-13
徐伟
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Usually, the paper tape is a blank strip of paper. It is inconvenient to use a scale to measure after dotting. If the paper tape is not smoothed, it will cause errors in the experimental data. At the same time, it is not easy to tear the paper tape used. To crack, you need to prepare scissors, etc., and you can’t achieve a uniform speed when pulling the paper tape, which also affects the experimental results

Method used

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  • Ticker-tape timer

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Embodiment Construction

[0013] The accompanying drawings are specific embodiments of the present invention. This kind of dotting timer includes a dotting platform 1 and a paper tape 8. A chute 2 is installed at one end of the dotting platform 1. The longitudinal direction of the chute 2 and the longitudinal direction of the dotting platform 1 are in a straight line. Slider 3 that slides left and right, a clip 4 is installed on the slider 3, the mouth of the clip 4 faces the dotting platform 1, one side of the slider 3 is connected to a rack 5, and the rack 5 is located on the edge of the chute 2 and the dotting platform. 1 and can slide left and right, the rack 5 meshes with the rotating gear 6, the rotating gear 6 is connected with the output end of the micro motor 7, and is driven by the micro motor 7 to rotate, and a scale line 9 is provided on one side of the paper tape 8, and the other side is also 9 can be marked on the scale. The length of the scale line 9 is preferably equal to the width of ...

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PUM

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Abstract

The invention relates to a teaching experimental article and particularly discloses a ticker-tape timer. The ticker-tape timer comprises a ticking platform and a tape provided with a plurality of tearing holes, a sliding groove is formed in one end of the ticking platform, a slider with a clip is arranged in the sliding groove and is connected with a rack meshed with a rotary gear, the rotary gear is driven to rotate by a micro motor, and two surfaces of the tape are provided with scale lines with the lengths equal to the width of the tape. The ticker-tape timer has the advantages that the micro motor can drive the tape to move at a constant speed to guarantee experiment precision; since the tape is provided with the scale lines, an interval between two points can be measured more visually and conveniently, and errors can be avoided; the two surfaces of the tape are provided with the scale lines, the lengths of the scale lines are equal to the width of the tape, and accordingly the tape can be used directly without surface selection, and a user does not need to worry about deviation of the tape; the used experimental tape can be torn off conveniently through the tearing holes.

Description

(1) Technical field [0001] The invention relates to a teaching experiment product, in particular to a time-keeping timer. (2) Background technology [0002] Dot timer is a tool for measuring time and is often used in teaching experiments. If the paper tape driven by the moving object passes the dot timer, the dots on the paper tape record the movement time of the object, and the dots on the paper tape also indicate the position of the moving object at different times. By measuring the paper tape The interval between the above points can analyze the movement of the object. Usually, the paper tape is a blank long strip of paper. It is inconvenient to use a scale to measure after the dotting. If the paper tape is not smoothed, it will cause errors in the experimental data. At the same time, the paper tape used is not easy to tear. If it cracks, scissors need to be prepared, and the paper tape cannot be pulled at a uniform speed, which also affects the experimental effect. (...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09B23/06G04F5/02
Inventor 徐伟
Owner 徐伟
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