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Turn-assisted driver

A technology of screwdriver and main body, applied in screwdriver, wrench, wrench, etc., to achieve the effect of shortening the working time and improving the rotation efficiency

Inactive Publication Date: 2011-08-17
中村晃
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For wood screws, it is obviously necessary to use force, but for other screws, it is inefficient to turn the screwdriver with your fingers over and over again when it only needs to be tightened

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0069] The most preferred form of screwdriver for the convenience of carrying out the invention

[0070] figure 1 is the front view of the screwdriver, figure 2 is a side view of the screwdriver, image 3 is a bottom view of the screwdriver. in addition, Figure 8 is a perspective view of the screwdriver.

[0071] exist Figure 1-Figure 3 Among them, A is the handle. The width is made narrow so that it is easy to fit in the palm, and the length is made so that one side is short and the other side is long. When using the right hand alone, the shorter side is close to the root of the index finger. When there is nothing in front, it can drive the index finger and middle finger to the left front, which can expand the movable range of use.

[0072] The handle on the wrist side is long, so if you move the hand position to the wrist side, the movable range of the hand can be changed.

[0073] Figure 1-Figure 3 B in is the metal part that fixes the handle and prevents the ...

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Abstract

Provided is a turn-assisted driver, the body of which is so made below a handle as can run idle even if the handle is fixed in the palm, so that the driver can be held and turned by pushing the handle. Therefore, the driver does not need the finger force for holding it but can be turned by a single hand. The driver has a wheel shape as a grip chuck for setting itself so that the fingers can hook and turn the grip chuck. This turn can be performed not by pinching the driver with the fingers but by gripping the same with the entire muscles of the hand, thereby to reduce the fatigue of the muscles. Moreover, the grip chuck wheel is radially larger than the handle of the driver so that it can apply a strong fastening force lightly. In case the driver itself is turned by the left hand while the handle being held by the right hand, that is, in case the driver is used by the two hands, the left hand is set completely free so that the driver can be largely turned to improve the workability better.

Description

technical field [0001] On the manual screwdriver used for screwing, the function of assisting rotation is added. Background technique [0002] The unpublished patent application (Japanese Patent Application No. 2007-29809) is the content applied for in the screwdriver assisted rotation, and the function of assisting the screwdriver to rotate is combined with the manual screwdriver. [0003] Invention pointed out [0004] The technical problem that the invention seeks to solve. [0005] When using a screwdriver for screwing by hand, it is laborious and inefficient to turn the screwdriver only by hand. [0006] When turning while applying pressure, the palm creates resistance and cannot be turned smoothly. Almost all of the muscles used to turn a screwdriver are those in the fingers. Because the muscles used are confined to a small area, they tire quickly. For wood screws, it is obviously necessary to use force, but for other screws, it is not efficient to use your finge...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B25B23/16B25B15/00
CPCB25B15/00B25G1/046
Inventor 中村晃
Owner 中村晃
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