Turn-assisted driver

A technology of screwdriver and cutter head, which can be applied to screwdrivers, wrenches, wrenches, etc., can solve the problems of inefficiency and achieve the effect of improving rotation efficiency and shortening working time

Inactive Publication Date: 2010-03-31
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

[0066] The most preferred form of screwdriver to facilitate the implementation of the invention

[0067] figure 1 Is the front view of the screwdriver, figure 2 Is a side view of the screwdriver, image 3 It is a bottom view of the screwdriver. In addition, Figure 8 It is a perspective view of the screwdriver.

[0068] in Figure 1-Figure 3 In the middle, A is the handle. Make the width narrow so that it fits easily in the palm, and make the length into a shape with one side short and the other long. When using the right hand alone, the shorter side is close to the base of the index finger, and when there is nothing in front, it can drive the middle finger of the index finger to the front left, which can expand the movable range of use.

[0069] The handle on the wrist side is long, so if you move the position of the hand to the wrist side, the movable range of the hand can be changed.

[0070] Figure 1-Figure 3 B in the middle is a metal part that fixes the handle to prevent the ...

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PUM

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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 thehandle 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] The manual screwdriver for screwing screws has been added with the function of assisting rotation. Background technique [0002] The unpublished patent application (Patent Application 2007-29809) screwdriver assisted rotation of the content applied for, combines the function of assisting screwdriver rotation with a manual screwdriver. [0003] Invention pointed out [0004] Invent the technical problem to be solved. [0005] When using a screwdriver for screwing in a manual mode, turning the screwdriver with only hand force is laborious and inefficient. [0006] When turning while applying pressure, the palm of the hand generates resistance and cannot move smoothly. The muscles used when turning the screwdriver are almost all the muscles on the fingers. Because the muscles used are limited to a small range, they will soon fatigue. For wood screws, it is obviously necessary to use force, but for other screws, when they only need to be tightened, it is inefficie...

Claims

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Application Information

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