Calibration machine

A technology of an archer and a fixed frame, which is applied in the field of archery and can solve the problems of reducing the accuracy of the arrow and the deviation of the arrow.

Inactive Publication Date: 2017-03-29
NINGBO CITY COLLEGE OF VOCATIONAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the actual calibration process, due to the different physical conditions every moment and the different competitive conditions every day, the corrected arrows will be biased, which will reduce the accuracy of the arrows to a certain extent

Method used

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Embodiment Construction

[0020] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0021] like figure 1 , figure 2 , image 3 As shown, an arrow correction machine of the present invention includes a fixed frame 1 and an electric telescopic device installed on the fixed frame 1, a bow 2, a spring 3, a bow installation frame, a bow drawing and string loosening device, and a counterweight 4, In this embodiment, there are two counterweights 4; the bow 2 is installed on the bow mounting frame; one end of the spring 3 is connected to the electric telescopic device, and the other end of the spring 3 is connected to the bow and the loose The string device is connected; the bow-drawing and string-loosing device includes a bow-drawing and string-loosing assembly and a support 5 installed on the fixed frame 1, and there are still two slide rails 35 for the slide block 6 to slide on the support 5, A slide block 6 slides on the suppo...

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PUM

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Abstract

The invention discloses an arrow correcting machine. The arrow correcting machine comprises a fixing frame (1), an electric stretching and contracting device installed on the fixing frame (1), a bow (2), a spring (3), a bow installation frame, a string pulling and releasing device and a balancing weight (4). The bow (2) is installed on the bow installation frame. One end of the spring (3) is connected with the electric stretching and contracting device. The other end of the spring (3) is connected with the string pulling and releasing device. The string pulling and releasing device comprises a string pulling and releasing assembly and a support (5) installed on the fixing frame (1), wherein a sliding block (6) slides on the supporting frame (5), the string pulling and releasing assembly is fixed to the sliding block (6) and can abut against a string (7) on the bow (2), one side of the sliding block (6) is connected with the other end of the spring (3), and the other side of the sliding block (6) is connected with the balancing weight (4). The arrow correction machine can correct an arrow without being affected by the body state and competitive state of an athlete.

Description

technical field [0001] The invention relates to a device for calibrating the accuracy of arrows, in particular to an arrow calibrating machine. Background technique [0002] The weight, overall balance and other properties of the arrow are important indicators to ensure the accuracy of the arrow. Since each person has different requirements for arrows, the correction of arrows is generally carried out by the individual athletes, that is, the arrows used are tested at a distance of 70 meters, and the quality and assembly of the arrows are judged from the final flying point of the arrows. Good or bad, choose the arrow with the least error for the competition. However, in the actual calibration process, due to the different physical conditions every moment and the different competitive conditions every day, the corrected arrows will be biased, thereby reducing the accuracy of the arrows to a certain extent. Therefore, based on the above reasons, there is an urgent need for a ...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): F41B5/00A63B71/00
CPCF41B5/1449F41B5/1469F41B5/148
Inventor邱林飞
OwnerNINGBO CITY COLLEGE OF VOCATIONAL TECH