Trimmer

Patent metadata

Field	Value
Publication number	US-10654186-B2
Application number	US-201916437286-A
Country	US
Kind code	B2
Filing date	Jun 11, 2019
Priority date	Jun 19, 2018
Publication date	May 19, 2020
Grant date	May 19, 2020

Abstract

The trimmer includes: a pusher 2 that pushes the bound material 1; a pusher moving device that moves the pusher; a positioning part 111 that positions the bound material pushed by the pusher; an allowable position memory that memorizes an allowable position range relevant to the pusher; an allowable reaction force memory that memorizes an allowable reaction force range relevant to the pusher; and a determiner that determines whether a length of the bound material is normal or abnormal. The determiner determines that: the length L of the bound material is normal; or the length L of the bound material is abnormal.

First claim

What is claimed is:

1. A trimmer that trims the bound material, comprising:
a pusher that pushes the bound material;
a pusher moving device that moves the pusher;
a positioning part that positions the bound material pushed by the pusher;
a position detector that detects a stopped position where the pusher is stopped;
a reaction force detector that detects a reaction force to which the pusher is subject;
a set position memory that memorizes a set standby position and a set stop position, the set standby position being a position where the pusher should be standby, the set stop position being a position where the pusher should be stopped;
an allowable position memory that memorizes an allowable position range relevant to the pusher;
an allowable reaction force memory that memorizes an allowable reaction force range relevant to the pusher; and
a determiner that determines whether a length of the bound material is normal or abnormal;
wherein the pusher moving device is configured to stop the pusher when the reaction force of the pusher arrives at an upper limit of the allowable reaction force range while the pusher is moved from the set standby position toward the set stop position; and
wherein the determiner determines that:
the length of the bound material is normal when the stopped position of the pusher is in the allowable position range, and the reaction force of the pusher is in the allowable reaction force range; or
the length of the bound material is abnormal when the stopped position of the pusher is out of the allowable position range, or the reaction force of the pusher is out of the allowable reaction force range.

2. A trimmer according to claim 1 , wherein the pusher moving device comprises a servomotor;
wherein the position detector is configured to detect a rotational position of the servomotor; and
wherein the reaction force detector is configured to detect an amount of a torque of the servomotor.

3. A trimmer according to claim 1 , wherein the pusher comprises:
a pushing plate that pushes the bound material; and
a spring connected with the pushing plate;
wherein the reaction force detector is configured to detect an amount of displacement of the spring.

4. A trimmer according to any one of claim 1 , wherein the trimmer is stopped when the determiner determines that the length of the bound material is abnormal.

5. A trimmer according to any one of claim 1 , wherein the trimmer is a three-side trimmer;
wherein the trimmer comprises:
a fore-edge trimming part that trims a fore-edge area of the bound material; and
a top and bottom edges trimming part that trims top and bottom edge areas of the bound material; and

wherein the positioning part is mounted on the fore-edge trimming part.

Assignees

• Horizon Int Inc

Inventors

• Shimizu Tomoyuki
• Kanao Masamichi
• Tabuchi Hideaki

Classifications

• B26D7/32

  for conveying or stacking cut product (means for removing cut-out material or waste B26D7/18) · CPC title

• B26D7/0675

  specially adapted for piles of sheets · CPC title

• B26D1/08

  of the guillotine type · CPC title

• B26D2007/0081

  Cutting on three sides, e.g. trilateral trimming · CPC title

• B26D7/08

  Means for treating work or cutting member to facilitate cutting (tensioning band cutters B26D1/48) · CPC title