JP2007239984A

JP2007239984A - Drive shaft lock device using magnet

Info

Publication number: JP2007239984A
Application number: JP2006106889A
Authority: JP
Inventors: Shoichi Kagami; 昭一鏡
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-03-10
Filing date: 2006-03-10
Publication date: 2007-09-20

Abstract

<P>PROBLEM TO BE SOLVED: To respond to problems in which an easy and accurate technique with minimized backlash is requested for a mechanism to be linearly or circularly moved by use of a gear to position a dimension or position, and the current situation where high-precision products are mainstreamed by advance in technology needs a manually-operated, easy and sure mechanism. <P>SOLUTION: In the mechanism for positioning or the like, an easy and sure work can be performed by using a magnet. A magnet with a strength matched to a purpose of use is integrated with a driving gear, and frictional resistance by the magnetic force is given to the driving gear. At this time, the accuracy can be enhanced more when the magnet is in contact with both the driving side and the driven side than when it is in contact with either of them. The driving gear can be manually operated by applying a force exceeding the resistance of the magnet, and locked by the force of magnet when the hand is released. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

直線方向や円方向に歯車を使って動かし、寸法や位置を決める機溝において、簡単でバックラッシュなどの少ない精度の高い技術が求められている。There is a need for simple, high-precision technology with little backlash, etc., in machine grooves that determine the dimensions and position by moving in a linear or circular direction using gears.

位置決めや寸法設定は、日々精度の高い機種が考案され製品化されております。
その中にあって、手動であっても簡単で精度の高い機構を必要としています。For positioning and dimensional setting, highly accurate models are devised and commercialized every day.
Among them, a simple and accurate mechanism is required even if it is manual.

位置決めや寸法設定を、簡単で精度の高い機構にする事が課題です。The challenge is to make positioning and dimensional setting simple and accurate.

用途に合った強さの磁石と、駆動する為の歯車を一体にし、磁石の力による摩擦抵抗を駆動歯車に与える。（この時、動かす側と動かされる側の片方より、双方に磁石が接した方が精度が上がる。）磁石の抵抗を超える力で、駆動歯車を手動により作動させ、手を放せば磁石の力によりロック状態になる。A magnet having a strength suitable for the application and a gear for driving are integrated, and frictional resistance due to the force of the magnet is given to the driving gear. (At this time, the accuracy is improved when the magnet is in contact with both of the moving side and the moving side.) The force of the magnet is increased by manually operating the drive gear with a force exceeding the resistance of the magnet and releasing the hand. To lock.

磁石の力により、簡単でバックラッシュの少ない精度の高い位置決めができる。The magnetic force enables easy and accurate positioning with little backlash.

図２を参考に実施例を説明する。
円盤状の「磁石１」に「歯車２」を固定し「支点４」にセットし、「歯車２」と「ラック３」を噛み合せ、「ラック３」の吸着面と「固定された磁石吸着面５」にまたがり、「磁石１」をセットする。「磁石１」の摩擦を超える力で、「支点４」を軸に「磁石１」を回転すれば、「ラック３」が左右に移動する。手を放せば磁石の力により、ロック状態になる。The embodiment will be described with reference to FIG.
“Gear 2” is fixed to “disc 1” magnet 1 and set to “fulcrum 4”, “gear 2” and “rack 3” are meshed, “rack 3” adsorption surface and “fixed magnet adsorption surface” 5 ”and“ magnet 1 ”is set. When the “magnet 1” is rotated about the “fulcrum 4” with a force exceeding the friction of the “magnet 1”, the “rack 3” moves to the left and right. If you let go of the hand, it will be locked by the force of the magnet.

直線運動。装置より「磁石１」「駆動歯車２」を引き上げ、分かりやすくした図である。Linear motion. It is the figure which pulled up "magnet 1" "drive gear 2" from the apparatus, and was easy to understand. 図１の部品を組立て、上より見た図である。It is the figure which assembled the components of FIG. 1 and was seen from the top.

Explanation of symbols

１．円盤状磁石
２．駆動歯車
３．ラック（磁石の吸着面でもある）
４．駆動歯車の支点（ベース６に固定）
５．固定された磁石吸着面
６．ベース1. 1. Disc-shaped magnet 2. Drive gear Rack (also magnet attracting surface)
4). Drive gear fulcrum (fixed to base 6)
5). 5. Fixed magnet attracting surface base

Claims

A device that combines a drive shaft and a magnet and brakes and locks the drive shaft with the force of the magnet.