JPS63280953A

JPS63280953A - Linear crank

Info

Publication number: JPS63280953A
Application number: JP11727087A
Authority: JP
Inventors: Harumi Utsunomiya; 宇都宮　晴海
Original assignee: Individual
Current assignee: Individual
Priority date: 1987-05-13
Filing date: 1987-05-13
Publication date: 1988-11-17

Abstract

PURPOSE:To aim at reduction of energy losses in a device, which converts a reciprocating motion into a rotary motion in the case of an engine or the like, by causing a semicircular gear to make a reciprocating motion so that it is engaged with racks which are drawn up in two lines on a frame. CONSTITUTION:On the inside of two sides facing each other of a rectangular frame are provided saw-toothed teeth 1 which are placed rectilinearly in a shape such as the teeth of a saw. In addition, a gear 2, which is toothed only on its semicircle to be engaged with said teeth 1, is placed so that they make a set. That is, the gear 2 is designed so that it is not toothed over an area of its semicircle or more. A cylindrical gear-protruding portion 3 is fixed on the side opposite to the toothed part of the gear 2 so that the center of its circle is held between the two. And then, a plate, which makes a reciprocating motion together with the rectangular frame and has a groove 4 for tracing the locus of its relative motion to the protruding portion 3, is placed in a position where it does not interfere with the other portion of the gear 2 except the protruding portion 3. Any object which is located at a position likely to interfere with the teeth of the gear 2 is excluded. The locational relation between the protruding portion 3 and the plate is maintained properly so that, when the protruding portion 3 moves as it traces the groove 4, two teeth will not interfere with it at the kinematic commutation point.

Description

【発明の詳細な説明】本案は主として発動機等における往復運動を回転運動に
変換する機構の改良を目差すものである。DETAILED DESCRIPTION OF THE INVENTION The present invention mainly aims at improving a mechanism for converting reciprocating motion into rotary motion in a motor or the like.

今日一般的なりランクとコンロッドによる運動変換装置
は構造のシンプルさ、耐久性では大変すぐれているがま
たその構造そのものの性質によるエネルギー損の発生は
根本的な欠陥と考えられる。Motion conversion devices using rank and connecting rods that are common today are extremely simple in structure and durable, but energy loss due to the nature of the structure itself is considered to be a fundamental flaw.

その原因は円運動するクランクにつながるコンロッドの
運動がピストンの往復運動のえかく直線上にない点であ
る。そこでコンロッドがピストンと同方向に運動し、な
おかつクランクのえかく円の接線上にあればよい事にな
る。The reason for this is that the movement of the connecting rod connected to the circularly moving crank is not in a straight line due to the reciprocating movement of the piston. Therefore, it is sufficient that the connecting rod moves in the same direction as the piston and is on the tangent to the circle of the crank.

以上の考えの実施（イ）長方形の枠の向い合う２つの辺の内に鋸歯状に直
線的に並ぶ歯をつける。Implementation of the above idea (a) Attach teeth arranged in a straight line in a sawtooth shape within the two opposing sides of the rectangular frame.

（ロ）　（イ）の歯に噛み合う歯車をセットする。この
歯車は半周又はそれ以上の歯を欠いたものとする。(b) Set the gear that meshes with the teeth in (a). This gear is assumed to have half or more teeth missing.

（ハ）（ロ）の歯車で歯を施した部位とその円の中心を
はさむ反対側に円柱状の突起を固定する。(c) Fix a cylindrical protrusion on the opposite side of the toothed part of the gear in (c) and the center of the circle.

に）（イ）の枠と共に往復運動しかつ（ハ）の突起部と
の相対運動軌跡をなぞる溝をもつ板を（ハ）の突起以外
の歯車の他の部分と干渉しない位置にお　く　。B) Place a plate that reciprocates with the frame (A) and has a groove that traces the locus of relative movement with the protrusion (C) in a position where it will not interfere with other parts of the gear other than the protrusion (C).

（ホ）（イ）の運動転換点とその近傍の歯について。(E) Regarding the motion turning point in (B) and the teeth in its vicinity.

（ロ）　の歯と互いに干渉する位置にあるものはこれを
除くものとする。(b) Those located in a position where they interfere with each other shall be excluded.

（へ）（ハ）に）の作用説明。（ハ）がに）の溝をなぞ
って動く時、往復運動部分の運動転換点において、滑ら
かにそれを決定しかつ（ホ）の時２つの歯が互いに干渉
しない為その位置関係を正しく保つ作用を行なうもので
ある。(to) (c) to) action explanation. (C) When moving by tracing the groove of the crab, the turning point of the reciprocating part is determined smoothly, and in (E) the two teeth do not interfere with each other, so their positional relationship is maintained correctly. This is what we do.

[Brief explanation of drawings]

第１図から第４図までは本案の作動状況である。１、鋸状歯２、半円のみに歯を施した歯車３、歯車突起部 Figures 1 to 4 show the operating status of the present invention. 1. Serrated teeth 2. Gears with teeth only on the semicircle 3. Gear protrusion

Claims

[Claims]

In a device that mutually converts rotational motion and reciprocating motion, the rotary motion part is a gear that lacks teeth in a certain area on the circumference, and the reciprocating motion part that meshes with the gear has teeth arranged in a sawtooth pattern, one row each at opposing positions. A frame with a total of two rows of teeth and the above two parts are connected at a part other than each other's teeth, and the positional relationship of the two parts is always maintained correctly and the motion turning point of the reciprocating part is determined smoothly. A mechanism whose main components are the above three parts.