Portable arrow maker for installing helical mylar® fletching on arrows for exercise archery

Abstract

Device for applying three helical feathers, spaced 120°, to an arrow shaft, commonly used in archery practice, characterized in that it comprises a central casing (3) with an aperture in its center and a cylinder (2) with two cable grommets at its ends, said cylinder being attached to the casing (3), through which the user passes the arrow shaft (1) and locks it in the desired position by tightening the nuts of the double cable grommets; and three articulated arms (6) attached to the upper surface of the casing (3) at 120° intervals, with two plates - one integral with the arm (6) and the other (5) attached to the arm (6) - spaced apart by a narrow gap into which the feather (4) can be inserted and prepared for gluing, and the arms are joined at their lower ends around a transverse axis, which enables the user to pivot the arms (6) until the feather (4) comes into contact with the arms (6) and remains adhered to them due to the double-sided adhesive previously applied to them.

Description

Technical Field

[0001] This invention relates to a mechanical device for attaching a double-cable sealing sleeve to any arrow shaft with a diameter between 4 and 9.3 mm (inclusive), and for gluing three spirals of length between 1.5 and 5 inches (inclusive) (3.8 to 12.7 cm) at a desired location on the arrow shaft surface, spaced at 120° intervals and at the same height. feather. Background Technology

[0002] Use bio-APET (as brand name) The application of spiral feathers (or spiral feathers) (hereinafter referred to as "feathers") manufactured by DuPont is traditionally done manually because they are incompatible with feather-attaching devices for commercially available rigid or semi-rigid feathers. In the prior art, the manual application of spiral feathers is performed in two steps: first, the user marks the location on the arrow shaft where the feathers will be glued, which can be aided by a tracking device (e.g., Beiter's "Triliner" from Germany; or Spigarelli's "SpigaMarker" from Italy); second, after the user applies a strip of double-sided tape (usually supplied with the feathers) to the edge of each feather, the manual application continues. This process is somewhat imprecise (the spacing between feathers is not precise relative to the approximate axis of the shaft), takes a relatively long time, and requires considerable dexterity. The device according to the invention, particularly for… The spiral-shaped feather design overcomes all these drawbacks, eliminating the need for pre-marking the arrow shaft and requiring no special dexterity from the user. Furthermore, its small size and light weight make the device portable. Summary of the Invention

[0003] The device according to the invention solves these disadvantages. According to a first characteristic, the device consists of a central housing with a central perforation (hereinafter referred to as the "housing") and, as a second characteristic, three hinged arms (hereinafter referred to as "arms" or "hinged arms") mounted at 120° intervals on the upper part of the housing. A cylinder is attached to the lower part of the central housing, the cylinder having two cable sealing sleeves (hereinafter referred to as "double cable sealing sleeves") at its ends. An arrow shaft, introduced through the central hole of the housing and passing through the double cable sealing sleeves, can be secured to a desired position by tightening the nuts of the double cable sealing sleeves. Tightening the nuts allows the arrow shaft to be secured to the device and centered relative to the longitudinal axis of the device. Thirdly, each hinged arm has two parallel plates between it, the two parallel plates being perpendicular to the arrow shaft, one of the two parallel plates being part of the arm, and the other of the two parallel plates being attached to the first plate, and the two parallel plates being separated by a narrow gap into which a user can slide a feather, such that the surface of the feather for receiving double-sided adhesive tape for gluing remains accessible and aligned with the longitudinal edge of the arm. At this point, once the double-sided adhesive has been applied (and it is usually supplied with this type of feather), the user rotates each of the three arms one after another around the joint located at its base until the edge of the feather with adhesive contacts the arrow shaft. The feather attaches itself to the shaft, and remains adhered to the arrow shaft when the user removes the arm by pivoting it in the opposite direction. Therefore, this device allows for time savings and greater precision compared to manual application, and makes the installation of spiral feathers available to everyone.

[0004] The device can be made in different forms depending on the size of the feathers to be applied and the diameter of the arrow. In fact, carbon arrows are typically between 4 and 6 mm in diameter (including the end value) and are usually equipped with feathers 1.5 to 3 inches long. Aluminum arrows are typically between 6 and 9.3 mm in diameter (including the end value) and are usually equipped with feathers between 2.8 and 5 inches long. Thus, the diameter of the orifices in the central housing and the double-wire sealing sleeve, as well as the length of the double plates of the three hinged arms, must be sufficient for the diameter of the arrow to be fitted and the length of the feathers to be applied, respectively.

[0005] The double cable sealing sleeve can be made in different lengths, as long as the distance between the nuts at its ends is at least 2cm, to ensure that the arrow is correctly aligned with the device once the nuts are tightened.

[0006] This device can be made for either right-handed or left-handed feathers. The device shown in the attached diagram is for right-handed feathers. For the left-handed form, the only difference will be that the double plates of the hinged arm, designed to receive feathers, are located on the side opposite to the longitudinal axis of the arm. Attached Figure Description

[0007] Figure 1 An overall view of the subject of the device of the present invention, which has an arrow shaft and feathers, is shown.

[0008] Figure 2 The lower view of the device is shown, along with an exploded view of the dual cable sealing sleeve and the central housing.

[0009] Figure 3 The top view of the device is shown, with one of the three components for holding the arm and one of the hinged arms shown in an exploded view. Detailed Implementation

[0010] Referring to these figures, the housing 3 of the device has a hollow area on its lower surface, which is designed to accommodate the upper nut of the dual-cable sealing sleeve 2, either by mounting or by gluing.

[0011] The upper surface of the housing 3 has an orifice 7 in its center, which is aligned with the vertical axis of the double-cable seal 2. The orifice 7 and the double-cable seal 2 are designed to be pierced by the arrow shaft 1. The arrow shaft 1, inserted through the double-cable seal 2 and the housing 3, is held in place by tightening the two nuts of the double-cable seal 2. Tightening the two nuts of the double-cable seal 2 also has the effect of aligning the axis of the arrow shaft 1 with the axis of the double-cable seal 2 and thus with the axis of the device. A cavity 8 on the upper surface of the housing 3 and at the base of the helical support member 9 accommodates the lower part of the arm 6, including its hinged pivot 10, allowing the arm 6 to tilt about the pivot 10 until it is vertically positioned against the arrow shaft 1. The outwardly extending shape of the cavity 8 allows the distance between the arm 6 and the arrow shaft 1 to be adjusted, in particular, according to the diameter of the shaft.

[0012] The upper part of arm 6 includes a plate oriented toward the arrow shaft, with a second plate 5 fixed parallel to it. The plate and plate 5 of arm 6 are separated by a narrow gap in which a spiral feather 4 can slide. The spiral shape of the feather and the elasticity of the material used to manufacture it allow the user to flatten the feather to fit into the gap. Once the feather 4 is inserted into its gap, only the area of ​​the feather 4 designed to receive double-sided adhesive tape for adhesion remains accessible. Once the feather 4 is in place in the gap, the articulated arm 6 pivots until the feather 4 contacts the arrow shaft 1. The feather 4 is secured to the arrow shaft 1 by its double-sided adhesive tape, and remains in place as it leaves the gap when the user pushes arm 6 away by pivoting in the opposite direction.

[0013] The pivot 11 at the end of the plate 5 facilitates the alignment of the arm 6 with the arrow shaft 1 when the feathers 4 are glued on. The visual reference 12 allows the three feathers to be placed at the same height.

[0014] As a non-limiting example, depending on the length of arm 6 and the length of the double-cable sealing sleeve 2, the device will have a total height between 15cm and 20cm (inclusive) (with arm 6 in a vertical position), wherein the length of arm 6 will depend on the length of the feather 4 to be glued. Also, with arm 6 in a vertical position, the width and depth of the device will be 4cm.

Claims

1. A device for applying three spiral feathers at 120° intervals to the shaft of an arrow typically used for archery practice. The system includes a central housing (3) with an orifice at its center and a double cable sealing sleeve (2), the double cable sealing sleeve being a cylinder with two cable sealing sleeves, each end having one cable sealing sleeve, one end of which is attached to the housing (3) such that the axis of the housing (3) coincides with the axis of the double cable sealing sleeve (2), and three hinged arms (6) are attached to the upper surface of the housing (3) at 120° intervals. The hinged arms are characterized in that they have two plates separated by a narrow gap, into which feathers (4) can be inserted and are ready for gluing. The device is characterized by having a connector located at the lower end of the arm around a transverse axis (10). After the user passes the arrow shaft (1) through an opening in the housing (3) and through the double cable seal sleeve (2), the user locks the arrow shaft in the desired position by tightening the nut of the double cable seal sleeve (2), which aligns the axis of the arrow shaft (1) with the axis of the housing (3) and the axis of the double cable seal sleeve (2). The user then pivots the arm (6) toward the arrow shaft (1) until the feather (4) contacts the arrow shaft and remains glued to the arrow shaft due to the double adhesive previously applied to it.

2. The apparatus according to claim 1, characterized in that, The double cable sealing sleeve (2) is attached to the central housing (3) such that the axis of the double cable sealing sleeve (2) coincides with the axis of the central housing (3).

3. The apparatus according to any one of the preceding claims, characterized in that, By tightening the two nuts of the double cable sealing sleeve, the axis of the arrow shaft (1) coincides with the axis of the double cable sealing sleeve (2) and the axis of the housing (3).

4. The apparatus according to any one of the preceding claims, characterized in that, Each of the three articulated arms (6) is provided with a plate whose plane is oriented toward the arrow shaft, and a second plate (5) is fixed parallel to the plate, the second plate being separated from the first plate by a narrow gap whose shape and thickness allow a spiral feather of length between 1.5 inches and 5 inches, including the end value, to slide into and remain in place due to its spiral shape and the elasticity of its material; once the feather (4) slides into the gap between the plates, the edge of the feather (4) having double-sided adhesive tape aligned with the longitudinal edge of the arm (6) remains accessible; and once the feather is glued to the arrow shaft, the feather (4) remains glued to the arrow shaft and moves out of the gap when the user pushes the articulated arm (6) away from the arrow shaft.

5. The apparatus according to claim 1 or claim 4, characterized in that, The lower part of the articulated arm (6) has sufficient elasticity to allow the user to bend the arm slightly so that the upper part containing the feather (4) can be aligned parallel to the axis of the arrow shaft when the arrow shaft is between 4 mm and 9.3 mm and including the end value.

6. The apparatus according to any one of the preceding claims, characterized in that, These cavities (8) receiving the transverse axis (10) of the articulated arm (6) have an elongated shape that allows the user to place the axis (10) at a distance from the arrow shaft (1) such that, when the diameter of the arrow shaft (1) is between 4 mm and 9.3 mm and includes the end value, the arm (6) in the vertical position contacts the arrow shaft (1) along its entire length regardless of the diameter of the arrow shaft (1).

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