Abstract:
The present invention relates to a bicycle and, more specifically, to a bicycle driven by pedals operated in reciprocating motion within a fixed angle range, the bicycle comprising: a trussed structure frame having a seat and a handle installed on the upper part thereof and wheels on the front and rear thereof; a driving sprocket wheel installed on the lower end of the frame; a driven sprocket wheel installed on a hub of a rear wheel and connected to the driving sprocket wheel by a driving chain; a crank shaft inserted into the center of the driving sprocket wheel to transmit torque to the driving sprocket wheel; first and second ratchets installed both ends of the crankshaft respectively; first and second lever units having ends connected to the first and second ratchets respectively to transmit the torque to the first and second ratchets, and pedals installed on the other ends respectively; a transmission unit connected to the first and second lever units to allow the first and second lever members to make a reciprocating motion toward the opposite directions to each other. The bicycle with reciprocating pedals is provided to have a simple structure, to be easy to manufacture, to be reduced in weight, and to enable a user to ride without feeling sense of difference since the pedals and the lever units are placed on the same positions as those of a regular bicycle.
Abstract:
PURPOSE: A golf simulation system using high speed machine vision cameras and a golf simulation method using a same are provided to minutely measure physical properties about a golf ball or a golf head. CONSTITUTION: A golf simulation system using high speed machine vision cameras comprises more than one camera(100,200) which acquires an image in which a club head impacts in a golf ball; a storing method which stores the image acquired from the camera; and a control unit for producing physical properties of a golf ball or a club head from a impacted image. The camera comprises a first camera acquiring the impacted image; and a second camera acquiring the impacted image.
Abstract:
PURPOSE: A system and a method for offering a mobile settlement service of a credit card are provided to make a credit card company form a more stable credit card settlement system by making the customer confirm the settlement before the settlement as directly transmitting an approval number to the customer. CONSTITUTION: The customer(40) buys an article at a shopping mall(30) and selects the credit card mobile settlement as a settlement tool. If the customer inputs the credit card company(10) and a mobile number, a settlement agency(20) or the credit card company confirms the inputted mobile number and transmits a certification number to the mobile number of the customer. If the customer inputs the certification number and a password for the mobile credit card settlement to the shopping mall, the settlement agency or the credit card company confirms the password and the certification number. The credit card company decides the approval by evaluating the credit information of the customer, and informs the settlement agency and the shopping of the approval. The shopping mall informs the customer of an approval result.
Abstract:
PURPOSE: An oil-hydraulic device is provided to improve the work quality by using a small-sized precise control system and to enhance the operability of an oil-hydraulic machine by preparing many parts for composing various hydraulic circuits in one machine. CONSTITUTION: An oil-hydraulic device comprises a body block forming a housing, many paths(40,60,80,120,140) forming the passages of the oil for lifting up and down a cylinder ram of the oil-hydraulic device in the body block, valve forming parts(10,30,50) having valves installed on respective paths and controlling the flow direction of the oil, and control valves(C1,C2) installed on the paths and controlling the flow rate of the oil. The third valve forming part has a cylinder having many auxiliary oil discharge ports and a cylinder type valve(19) for controlling the amount of the oil discharged by opening and closing the auxiliary oil discharge ports.
Abstract:
본 고안은 자동차에서 사용하는 비상램프 겸용 성애 제거용 열풍기에 관한 것이다. 겨울철 등에 자동차에 성애가 끼면, 이를 제거하기 위해 플라스틱 박편등을 이용하여 긁어냈다. 본 고안은 자동차 시거잭이 있는 전원을 이용하여 사용할 수 있는 비상램프 및 열풍기가 일체로 구성된 장치를 제공한다. 본 고안은 합성수지 등으로 구성되는 몸체와, 내부에 열선 및 모터를 구비한 열풍생성부를 갖고, 손잡이부에 열풍스위치부와 램프스위치부를 구비하고, 상기 열풍생성부의 전면에 형성된 열풍배출구와 배면에 형성된 방열구와, 상기 열풍배출구의 상측에 형성되는 램프부와, 상기 열풍생성부와 전기적으로 접속되어 전원을 공급하기 위한 코드부와, 자동차의 시거잭부에 접속하기 위한 플러그부로 구성되는 자동차 비상램프 겸용 열풍기가 제시된다.
Abstract:
본 발명은 회전식 체인핀 분리장치에 관한 것으로서, 누구라도 쉽고 편리하게 체인으로부터 체인핀을 분리할 수 있고, 단순한 구조로 인해 제조원가가 저렴하며, 압력 전달이 점진적으로 진행되어 체인핀의 훼손을 방지하도록 하는 것을 목적으로 한다. 이를 위하여 본 발명은, 하부측에는 체인(60)이 안착되고 체인핀(65)이 통과하는 체인 안착부(21)가 형성되고, 상부측에는 내측에 암나사부(22')가 형성된 승강 가이드부(22)가 형성된 안착지그(20)와; 외측면에 상기 승강 가이드부(22)의 암나사부(22')에 체결되는 수나사부(31)가 형성되어, 상기 승강 가이드부(22)에 체결되어 승강하는 승강 가이드(30)와; 외측면에 수나사부(41)가 형성되어 상기 승강 가이드(30)의 상단 내측에 형성된 암나사부(32)에 체결되는 회전부재(40)와; 상기 승강 가이드(30)의 내측에서 승강되고 상기 회전부재(40)의 하단부에 삽입되어 고정핀(46)에 의해 고정되며, 하강시 체인핀(65)을 가압하는 가압핀(45)과; 상기 회전부재(40)의 상부에 관통 설치되는 손잡이(50);를 포함하는 것을 특징으로 한다.