Laborsaving hole puncher
AssigneeSDI Corporation
InventorChi-Feng Huang
Life of this patent
Estimating the term…
Abstract
A laborsaving hole puncher has a base, at least one cutter, a top cover and at least one articulated linkage. The base has at least one bracket. The least one cutter slidably is mounted respectively on the at least one bracket. The top cover is mounted pivotally on the at least one bracket. The least one articulated linkage connects respectively to the at least one bracket, the at least one cutter and the top cover and each articulated linkage has an upper link and a lower link. The upper link is mounted pivotally on the top cover. The lower link is mounted pivotally on the upper link and is mounted pivotally on one bracket and has an intermediate segment mounted to one cutter. The at least one articulated linkage makes people easily conveniently use the laborsaving hole puncher without strenuous effort.
Claims14
A laborsaving hole puncher comprising:
- a base having at least one U-shaped bracket mounted on the base and each one of the at least one bracket having
- a front end;
- a rear end;
- two wings formed on the bracket at an interval and each wing having a curved slot defined through the wing;
- and
- a partition board mounted the wings and having a guide hole defined through the partition board;
- at least one cutter slidably mounted respectively through the guide hole in the at least one bracket and slidably mounted through the base;
- a top cover mounted pivotally on the at least one bracket to be depressed to drive the at least one cutter and having a front;
- and
- at least one articulated linkage corresponding respectively to and connecting respectively to the at least one bracket on the base, connecting respectively to the at least one cutter, connecting to the top cover and each one of the at least one articulated linkage having
- an upper link mounted pivotally on the top cover and having a top end mounted pivotally on the top cover and a bottom end pivotally and slidably between the curved slots in the wings on a corresponding one of the at least one bracket;
- and
- a lower link mounted pivotally on the upper link, mounted pivotally on the corresponding bracket and having a top end mounted pivotally on the bottom end of the upper link, a bottom end mounted pivotally on the wings on the corresponding bracket and an intermediate segment mounted to a corresponding one of the at least one cutter.
A laborsaving hole puncher comprising:
- a base having at least one U-shaped bracket mounted on the base and each one of the at least one bracket having
- a front end;
- a rear end;
- two wings formed on the bracket at an interval;
- and
- a partition board mounted the wings and having a guide hole defined through the partition board;
- at least one cutter slidably mounted respectively through the guide hole in the at least one bracket and slidably mounted through the base;
- a top cover mounted pivotally on the at least one bracket to be depressed to drive the at least one cutter and having a front;
- and
- at least one articulated linkage corresponding respectively to and connecting respectively to the at least one bracket on the base, connecting respectively to the at least one cutter, connecting to the top cover and each one of the at least one articulated linkage having
- an upper link mounted pivotally on the top cover and having a top end mounted pivotally on the top cover and a bottom end;
- and
- a lower link mounted pivotally on the upper link, mounted pivotally on a corresponding one of the at least one bracket and having a top end mounted pivotally on the bottom end of the upper link, a bottom end mounted pivotally on the wings on the corresponding bracket and an intermediate segment mounted to a corresponding one of the at least one cutter.
Dependencies are inferred from the claim text.