Power screwdriver

A technology for electric screwdrivers and locators, which can be applied to screwdrivers, motor tools, portable motor devices, etc., and can solve problems such as wear and tear on contact parts

Active Publication Date: 2018-11-13
MAKITA CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the technique of the above-mentioned Patent Document 1, if the abutment of the partial contact is repeated, the abutting portion (partial contact portion) of the rubber cap 164c may be worn.

Method used

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Examples

Experimental program
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Embodiment Construction

[0030] Below, use Figure 1-9 Modes for implementing the present invention will be described. In addition, in the following description, up, down, front, back, left, and right represent directions of up, down, front, back, left, and right described in the above-mentioned figures, that is, up, down, and up when the electric screwdriver 1 is used as a reference. Down, front, back, left, right directions.

[0031] Such as Figure 1~3 As shown, this electric screwdriver 1 includes a gear 16 that meshes with a drive shaft 14 of a motor 12 accommodated in a cylindrical case 10 . A main shaft 18 capable of moving back and forth and rotating is assembled on the front side of the gear 16 inside the casing 10 . A tool bit 30 is assembled to the tip (tip end) of the main shaft 18 so as to be axially aligned via the chuck 28 .

[0032] In this way, tool heads 30 of various sizes can be assembled on the tip of the main shaft 18 by passing through the chuck 28 . Therefore, it is possib...

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PUM

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Abstract

The invention provides a power screwdriver. When the screw is screwed in a condition where an butting part of a top end face of the positioner with respect to material screwed in is in partial contactstate, potential damage can be prevented from being caused to the material screwed in by partial contact without parts of the top end face of the positioner being covered. As for the power screwdriver (1), when an abutting state in which the top end face of the positioned mounted in the shell body is abutted against the material screwed remains unchanged, transfer of screw-in force from a motor to a tool head is cut off if the screw is screwed into a preset screw-in depth, and an axial angle formed by the top end face of the positioned and the tool head is changeable.

Description

technical field [0001] The present invention relates to an electric screwdriver. Specifically, it relates to a method for screwing a screw into a screw with a tool head while keeping the abutting state of the top end surface of a locator mounted on a casing in contact with a screw-in material. The pre-set screw-in depth, the screw-in force is cut off from the transmission of the motor to the tool head electric screwdriver. Background technique [0002] Conventionally, an electric screwdriver is known as a tool capable of easily screwing (screwing) screws (screws) into materials such as panels. Such an electric screwdriver has the following structure: in the state where the top end surface of the locator mounted on the housing is kept in contact with the screw-in material, if the tool head screws the screw to the preset screw If the penetration depth is not enough, the transmission of the screwing force from the motor to the tool head is cut off by the clutch mechanism. Her...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): B25B21/00B25F5/02
CPCB25B21/00B25F5/02B25F5/003B25B23/0064B25B23/0028B25F5/001
Inventor生田洋规
OwnerMAKITA CORP