IP Library › Granted Patent US 10,195,725
Granted Patent B2
US 10,195,725 · App. 14/917,520 · Granted Feb 5, 2019

Rotary clamping mechanism and methods for using the same

Inventor: Shiyu Sun (Shanghai, CN)
Assignee: SHANGHAI EASY-USE TOOLS ENTERPRISE CO., LTD
B25B27/02B25B13/56B25B27/04A61B17/3217B23D51/10B26B5/00
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 10,195,725
App. No.
14/917,520
Granted
Feb 5, 2019
Kind
B2
Abstract

This invention discloses a rotary clamping mechanism comprising a cylinder, a rotary member, and a clamping member, wherein the rotary member and the clamping member have shapes that gradually change; the rotary member comprises a first board, a second board, a first connection member, and a second connection member; a wall groove is arranged at the lower side of the inner wall of the cylinder; the rotary member and the clamping member can rotate in the cylinder to contract and compress.

Claims (4)

1. A method for using a rotary clamping mechanism, said rotary clamping mechanism comprises a cylinder and a rotary member, said method comprising placing the rotary member into the cylinder, and further comprising:

step 1: inserting a bit into the rotary member, wherein the rotary member is an integral clamping member, and an upper part of the clamping member is provided with two upper sliding blocks and a lower part of the clamping member is provided with two lower sliding blocks, a wall groove is arranged at a lower side of an inner wall of the cylinder, and a lower side of the rotary member touches against an inside of the wall groove and rotates to contract and compress, and, a lower edge of the inner wall of the cylinder is configured with two arc-shaped blocks, two corresponding sides of an upper edge of the wall groove both are configured with arc-shaped grooves, and the arc-shaped grooves are configured in a staggered manner with the arc-shaped blocks;

step 2: rotating the rotary member, and clamping the bit tightly by a convergent force between the lower sliding blocks of the rotary member, wherein the upper sliding blocks slide within the arc-shaped grooves, and once the upper sliding blocks stop sliding, since a shape of the arc-shaped blocks of the inner wall of the cylinder is oval, the lower sliding blocks are limited by the arc-shaped blocks of the inner wall of the cylinder, which compresses the rotary member and the bit is fixed by a clamp force generated by compression of the rotary member;

step 3: pulling out the bit from a tool arbor, and putting the rotary clamping mechanism clamping the bit into a tool kit.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 8, 2016
From: SUN, SHIYU
To: SHANGHAI EASY-USE TOOLS ENTERPRISE CO., LTD
Reel/Frame 037925/0239 →
Priority Claims (1)
CN 2013 1 0496629 · Oct 21, 2013 · national
Continuity (1)
Related Publication 20160214243A1 · Jul 28, 2016
Cited By (1)
US 1,115,482