Analysis of the technical characteristics of recurve bow

Comparison of the structural characteristics of traditional bows, recurve bows and compound bows
1. The tension changes of traditional bows, recurve bows and compound bows are different: for traditional bows with the same tension standard, the tension at the initial draw distance is small, and as the bow draw distance is extended, the tension becomes larger and larger. Due to the effect of the direction of the eccentric wheel group, the initial force of the compound bow is large, and as the bow is continuously pulled open, the front and rear symmetrical forces are greatly reduced with the help of the cam lever.
2. The draw distance of the recurve bow and the compound bow are different: the draw distance of the traditional bow recurve bow can be arbitrarily changed within the deformation limit of its material. The longer the draw distance, the farther the arrow is shot. The compound bow has a structural device for draw distance positioning. The draw distance is fixed, and the distance of the arrow shot by the bows with the same tension standard is basically the same.
3. The control force of the recurve bow and the compound bow is different: as the bow draw distance of the traditional bow recurve bow is extended, the front and rear symmetrical control force increases, and the difficulty of effective and consistent control is great. The compound bow after pulling is characterized by small control force, and effective and consistent control is relatively easy.
4. The arrow rests of recurve bows and compound bows are different: the arrow rests of traditional bows and recurve bows are side-mounted. The arrow rests of compound bows are central tower and rise-and-fall.
5. The aiming tools of recurve bows and compound bows are different: the aiming tool of recurve bows is the front sight. Only by strict integration of man and bow can the three points of the two points of the bow and the target be connected. The aiming tool of compound bows is composed of the rear sight window of the bowstring and the center point of the aiming magnifier, which constitutes the two points and one line of the tool itself. In order to ensure the verticality of the bow, a horizontal bubble can also be installed at the bottom of the magnifier, so that the three-point and one-line relationship of the front sight of the mechanical rifle (the aiming point in the middle of the magnifier), the notch (the rear sight window on the bowstring) and the target is formed.
6. The aiming methods of recurve bows and compound bows are different: the aiming of recurve bows is carried out under the premise of maximum front-back symmetrical control force, and it can only be completed when the force and relationship are completely consistent. The aiming of a recurve bow is to use the tangency of the bowstring and the bow handle (or the inner and outer rings of the sight) to ensure the positioning of the height distance between the bowstring and the eye sight through the same position relationship between the hook hand and the lower jaw. The aiming method relies on the overlap of two triangles at the target point, namely, the vertical (fixed distance between the bowstring and the eye sight, the sight line is extended to the target intersection through the sight line) and the horizontal (the position of the tangent point between the eye sight and the bowstring and the sight line extended to the target intersection). The aiming of a compound bow is carried out with very little control and is relatively easy to master. The method is to center the line, that is, the sight line through the rearview window to the outer ring of the magnifying glass should be centered, and the aiming point in the magnifying glass should be centered at the center of the target.
7. The release method of the recurve bow and the compound bow is different: the release of the recurve bow is to release the force uniformly through the three fingers of the hook hand, so that the bowstring rolls out from the belly of the finger at the point of support. During the release process, different changes in the force of the fingers will directly change the flight direction of the arrow. If the upper finger (index finger) exerts too much force or releases late, the arrow will be high; if the lower finger (middle finger, ring finger) exerts too much force or releases late, the arrow will be low; when releasing, the force of the finger muscles is not smooth or is pulled inward, the arrow will be biased to the left; if it is loose or outward, the arrow will be biased to the right. The compound bow releases the arrow through different types of mechanical release devices, and the arrow is shot by pulling the trigger or firing device on the release device with the index finger or thumb. The release device of the compound bow is developed and manufactured to target the inconsistency of human release, which basically solves the impact of human factors on the equipment. Since the release device is used for mechanical release, the influence of fingers on the bowstring can be avoided. From the release of the recurve bow with three fingers facing the bowstring to the release of the compound bow with the mechanical point of the release device facing the bowstring, it is a major reform and progress in the history of archery, which greatly improves the accuracy of archery.
8. Shock absorption of recurve bows and compound bows: The shock absorption of recurve bows is achieved by the weight balancer installed on the bow handle and the shock absorption rubber block bonded to the upper and lower bow pieces. Compound bows can not only achieve the above shock absorption, but also install shock absorption devices on the bow handle, arrow rest, sight and bowstring, and string divider. This makes up for the excessive vibration caused by the large ejection force.