DE3334480A1 - Device for pulling out arrows - Google Patents

Abstract

Device for pulling out arrows, having a shaft with at least one region of constant diameter, from target discs or the like, consisting of: two cylindrical half-shells with an elastic inner lining, which each have a longitudinally continuous recess, the surfaces of which likewise form half-cylinders, the elastic inner lining having a surface with a high coefficient of static friction; a hinge-like connection between the cylindrical half-shells, which makes it possible to fold the shells onto one another to form a complete hollow cylinder, and a half-shell outside diameter matched to the inner face of the human hand as a grip.

Description

description

The invention relates to a device as described in the preamble of the claim 1 specified type and a method for producing such a device.

In archery and similar sports that use arrows slimmer shafts are shot at targets in which the arrows at least partially penetrate and be held there, there is a need to these arrows to be removed from the disc for reuse.

Because of their high airspeed, these arrows penetrate many times deeply into the panes and adhere tightly, so that they often only take a considerable amount of time Force can be removed from the disc. When unscrewing by hand a bending moment is often applied so that the arrows deform and become unusable.

Pulling the arrows out of the straw or something similar Compressed material existing targets is particularly difficult in wet weather, because then on the one hand the targets swell due to the moisture and the arrowheads Adhere particularly firmly there, especially since the part that has penetrated the target the space surrounding the arrow is vacuum-tight. The other is as a result the moisture adhering to the arrow shafts reduces the static friction, so that the attempt Removing the arrows from the target without tools is often almost hopeless is.

Common hand tools can be used to pull out the arrows Do not use the target, as the jaws of pliers and the like are tubular The aluminum profile of the shaft would deform because of its low wall thickness.

The invention is based on the object of providing a device of the initially described Specify mentioned type, which is the extraction of arrows from targets under all conditions with little effort and without deforming the arrow shafts enables. This task is carried out by means of a device with the in the characterizing Part of claim 1 specified features solved.

It is particularly advantageous in this device that it is easy to manufacture and can easily be carried by the athlete at any time, so that it can be used when required is always at hand.

Due to the design of the two half-shells, which are articulated with one another are connected and in an advantageous embodiment in the relaxed position are held slightly open, one-handed operation is possible in such a way that the device for gripping the arrow is passed over the shaft, compressed there and after pulling out the hand is relaxed, whereupon the two handle shells as a result of the resilient articulated connection striving for a stretched rest position resumes the slightly open position so that the arrow shaft is released will.

Due to the elastic inner lining with a high coefficient of friction for Static friction and an overall cylindrical recess is applied to the surface of the shaft exerted an even pressure, so that even large pull-out forces in the shaft surface can be safely introduced with a small surface load. The production is easy if either in prefabricated outer half-shells Made of plastic (preferably PVC), gunimielastic inserts to increase the static friction be glued into corresponding semi-cylindrical recesses or the insert inserted into a corresponding mold and then overmolded with plastic.

In another preferred development of the invention, the Joint parts made of plastic are molded onto the outer half-shells, like this that there is also a slightly open rest position with one to close the gives both half-shells sufficient elasticity. Conveniently, the rubber-elastic insert also in the form of itself over the length of the cylindrical recess there are distributed transverse ribs that have such a small wall thickness, that they deform elastically when enclosing the shaft and thus also are able to transmit the necessary tensile forces.

It goes without saying that the inner diameter, which is when closed Half-shells result in a slightly smaller overall cylindrical recess must be than the outer diameter of the arrows to be extracted so that the pressing force resulting from the elasticity enough to get a To generate static friction, which - integrated over the enclosed shaft length - the transfer of the necessary pull-out forces is guaranteed.

Advantageous further developments of the invention are set out in the subclaims marked or are shown in the following illustration together with a preferred embodiment of the invention described in more detail.

The single figure shows an advantageous embodiment of the Invention that is described in more detail below ..

Two half-shells 1 and 2, which are made of PVC and each the Have the shape of a half hollow cylinder are in the drawing in the - easy open - rest position reproduced. They form a total - in the closed Position - a handle, the outer shape by circumferential in the tangential direction rounded depressions 3 to 6 is contoured so that the four fingers of the human Find an easy-to-grip support surface.

Areas 7 and 8 outside the aforementioned grip area are cylindrical rounded, with between approaches 9 and 10 or 11 and 12 at the separation points plane Sheet metal pieces 13 and 14 made of spring steel are provided, which by means of screws 15 and 16 are screwed to the cylindrical areas 7 and 8. As a result of their stretched In the rest position, these sheets hold the two handle shells 1 and 2 in the drawing - slightly open - position in which the shaft 17 (shown in dashed lines) an arrow in recesses 18 and 19 in the half-shells 1 and 2 inserted Deposits 20 and 21 can get. These insoles are made of rubber and have the Shape of two half cylinders, which when the shells 1 and 2 put around the shaft of the arrow 17 and its inner surfaces on its surface to apply the tensile force.

In this way, an arrow drilled into a disk can, when in use easily removed with just one hand. After removing the arrow it takes the closed hand only to be opened to release the arrow shaft is and as a result of gravity downwards out of the device from the Device removed.

In this way, several arrows can be shortened one after the other Pull time out of the target.

The invention can be implemented in different variants, wherein in the foregoing only a single embodiment has been described in more detail. Other designs, where it is important, in the area of the outer surface of the Handle body to be able to initiate relatively large transverse forces, which - with appropriate Material selection - gently on a sensitive shaft of the one to be pulled out Arrow are transmitted, will be apparent to the person skilled in the art on the basis of the foregoing Description.

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Claims (9)

Device for drawing out arrows Claims device for drawing out arrows of arrows with a shaft that has at least one area of constant diameter has, from targets or the like, g e k e n n n z e i c h n e t through two cylindrical half-shells (1, 2) with an elastic inner lining (20, 21), each of which has recesses (18, 19) extending through it in the longitudinal direction, the surfaces of which also form semi-cylinders, with the elastic inner lining has a surface with a high coefficient of adhesion, at least one hinge-like Connection (15, 16) between the cylindrical half-shells, which makes it possible to fold the shells onto one another to form a complete hollow cylinder, as well as one the inner surface of the human hand as a handle adapted outer diameter of the Half-shells (1, 2). 2. Apparatus according to claim 1, d a d u r c h g e -k e n n z e i c h n e t that the elastic lining (20, 21) by a divided rubber hose is formed. 3. Device according to one of the preceding claims, d a d u r c it is noted that the outer shell is circumferential in the tangential direction Has vertices (3 to 6) with a rounded cross section. 4. Apparatus according to claim 3, d a d u r c h g e -k e n n z e i c n e t that the wells (3 to 6) have four recesses for receiving the fingers of the human hand. 5. Device according to one of the preceding claims, d a d u r c h e k e n n n e i c h n e t that the hinge-like connections (13, 14) through Sheet metal strips are formed from spring steel. 6. Apparatus according to claim 5, d a d u r c h g e -k e n n z e i c h n e t that the strips of spring steel (13, 14) in their stretched rest position hold the half-shells (1, 2) in an open position in which there is an arrow with a shaft diameter that is the diameter of the cylindrical inner recess corresponds, essentially without touching the inner surfaces of the half-shells of can be introduced from the side. 7. Device according to one of the preceding claims, d a d u r c h e k e n n n z e i c h n e t that the strips of spring steel (13, 14) with the Half-shells are connected by means of screws (15, 16). 8. Device according to one of the preceding claims, d a d u r c h e k e n n n e i c h n e t that the half-shells (1, 2) are made of plastic. 9. A method for manufacturing a device according to any one of the preceding Claims, d u r c h e k e n n -z e i c h n e t, that the through a rubber elastic Insert formed lining with which the outer half-shells (1, 2) encapsulated forming plastic material after inserting it into a corresponding mold will.