JP3044429U - Swash plate detent in model helicopter - Google Patents

Abstract

(57) [Summary] [Purpose] To reduce the manufacturing cost, design cost, and improve safety, the number of parts for moving the swash plate of the radio control helicopter is reduced, and the purpose is to function as before. There is. [Structure] To solve the problem, the arm connected to the swash plate and the detent were made common, and the number of parts was reduced. Specifically, the arm 2 serving as a rotation stopper is connected to the arm 1 installed on the swash plate. As a result, even if the swash plate is about to rotate, the arm 2 becomes a resistance and does not rotate. Also,
Since the arm 2 moves in the direction of rotation 1, it is possible to move the swash plate up and down, and the conventional function does not interfere.

Description

[Detailed description of the invention] [Industrial applications]

 The present invention relates to an arm that operates a swash plate, which is a main element in the steering structure of a model helicopter, and a detent that keeps the swash plate from rotating.

[Prior art]

 The model helicopter uses a control device called a servo and can fly by using a device called a swash plate that changes the elevation angle of the main rotor. In the flight of the model helicopter, the forward / backward, left / right, up / down movements are realized by moving the swash plate with a servo and tilting it. In the method of moving the swash plate by the servo, the servos corresponding to each of the front, rear, left and right movements are usually controlled. In the case of this method, for example, if you want to tilt the swash plate forward, the servo connected to the arm on the swash plate is controlled by one, so it is simple, but other movements occur simultaneously to move. As a result, many intermediary arms and linkages are required, which tends to complicate the mechanical design. Also, as the number of intermediary arms increases, the play that occurs in each part accumulates, and eventually a large amount of play (play) occurs between the servo and the swash plate. On the other hand, there is a method called a swash mode in which front, rear, left and right operations are controlled by three servos. For example, when the swash plate is tilted forward, the two arms on the front side are lowered and the one on the rear side is raised. At first glance, it looks complicated, but by installing three arms attached to the swash plate and arranging servos corresponding to each arm, it became possible to greatly reduce the intermediary arms and linkages. When moving the swash plate, all servo control is required for one movement, which makes it difficult to control electrically, but it is a mechanically simple structure that the servo can be directly connected to the swash plate. This is a very useful method in production cost and design because it is possible. Whichever method is used, the swash plate is used while rotating the main rotor, so a detent is necessary to prevent it from following the rotation. When the swash mode is used, the detent must be provided in addition to the three linkages that are connected to the swash plate, so the number of parts that can be reduced is increased and the cost is increased. Will end up.

[Problems to be solved by the device]

 I want to minimize the things that actually connect to the swash plate. This is because the increase in the number of parts in the swash plate, which is a very important part of a helicopter flight, increases the possibility of troubles and also increases the design cost and production cost. The present invention was developed to reduce the number of parts attached to the swash plate as much as possible.

[Means for Solving the Problems]

 In order to solve the problem, the arm connected to the swash plate and the detent were used in common. Connect arm 2 that also functions as a rotation stop to arm 1 that is installed on the swash plate.

[Action]

 As a result, when the swash plate tries to rotate, the arm 2 becomes a resistance and does not rotate. Also, since the arm 2 moves in the direction of rotation 1, the swash plate can be moved up and down, and there is no problem with the conventional function.

【Example】

 If the arm of the present invention is installed at one or more places, the detent will be more reliable.

[Effect of the invention]

 By making it common, the number of arms connected to the swash plate was reduced to the minimum necessary, the number of parts attached to the swash plate was reduced, and the possibility of trouble was also reduced.

[Brief description of the drawings]

FIG. 1 is a perspective view of a swash plate and an arm.

Claims (1)

[Utility model registration claims] 1. In a model helicopter having three linkage arms for moving a swash plate and operating in a swash mode, an arm for connecting and moving the linkage arm of the swash plate and a detent for the swash plate are provided. A swash plate rotation stopper realized with one arm.