US3232286A

US3232286A - Arrow rest

Info

Publication number: US3232286A
Application number: US194083A
Authority: US
Inventors: Glen B Guyton
Original assignee: Individual
Current assignee: Individual
Priority date: 1962-05-11
Filing date: 1962-05-11
Publication date: 1966-02-01
Anticipated expiration: 1983-02-01

Description

Feb, ii, 19% G. B GUYTON 3,232,2%6

ARROW REST Filed y 11, 1962 INVENTOR. G/en 5. G

United States Patent 3,232,286 ARROW REST Glen B. Guyton, 1639 E. Pine, Tulsa, Okla. Filed May 11, 1962, Ser. No. 194,083 3 Claims. (Cl. 124--24) This invention relates to improvements in bow and arrow structures and more particularly, but not by way of limitation, to an arrow rest adapted for installation on substantially any type of bow structure.

It is common practice today to provide an arrow rest device on a bow structure for facilitating the shooting of the arrow. As a result, there are many types of arrow rests available. However, most of these arrow rest structures have at least one disadvantage in that they tend to deflect the arrow, thereby reducing its accuracy.

In an effort to determine why the arrow rest structures deflect the moving arrow, observations have been made of the behavior of the arrows, particularly during the initial propelling thereof, and it has been found that normally, substantially immediately upon release of the arrow, the bow structure will rotate in the archers hand through a substantially vertical plane. That is, the lower limb of the bow will move in a forward direction while the upper limb simultaneously moves in a rearward direction. This is apparently due, in part, to the design and balance of the bow, the manner in which the bow is held by the archer, and by the misalignment of forces that exist from the moment of release until the arrow is launched. This rotation of the bow causes the tail end of the arrow to be forced downwardly during the initial forward movement thereof.

Further observations have been made which determined that substantially immediately upon release of the bow string, the rear portion of the arrow is deflected to the left by the archers fingertips. This causes the arrow shaft to flex in a direction such that the arrow will be cast to the left and off of the arrow rest. As the arrow travels forward, the rear portion thereof tends to move diagonally toward the right. This action brings the tail end of the arrow back in a direction toward the bow and very close the etc, but at a somewhat lower disposition than that of the forward end of the arrow due to the tendency of the bow to rotate, as hereinbefore set forth. As a result, the tail end of the arrow may strike the arrow rest structure as the arrow moves or passes by the bow window, and thus the flight of the arrow is deflected, which reduces the accuracy of the shot.

Perhaps a more accurate description of the initial action of the arrow is that the arrow flexes in a substantially horizontal plane, which results in a differential spacing between various portions of the shaft of the arrow and the bow as the arrow moves by the bow window. This action, combined with the rotation of the bow in the archers hand, tends to cause the rear of the arrow moving by the arrow rest to drop slightly, thus contacting the rest whereby the arrow is deflected during the initial movement thereof. This deflection, however slight, may have a great effect on the results of the shot, and is thus detrimental to the overall accuracy of the bow and arrow.

The present invention contemplates a novel arrow rest structure particularly designed and constructed for overcoming the disadvantages of the presently available devices. The novel arrow rest comprises a movable button or plunger member adapted for receiving the arrow prior to the release or shooting thereof. As the arrow is released and moves forwardly across the bow, the plunger member readily retracts into the bow structure upon any slight pressure from the arrow if the arrow drops below the initial rest position. The rapid retraction of the plunger substantially precludes any restriction or deflec- 3,232,286 Patented Feb. 1, 1966 "ice tion of the flight path of the arrow due to the rest structure, thus greatly increasing the accuracy of the shot. In addition, the disappearing rest plunger is constructed from a tetrafluoroethylene plastic material, such as that sold under the trade name Teflon, and which is well known. This plastic material has a lubricating quality that has proven to be beneficial to the overall action of the shooting of the arrow. Furthermore, the arrow rest structure may be readily installed on substantially any type of how structure, and is of a simple and economical construction.

It is an important object of this invention to provide a novel arrow rest device which may be readily installed on substantially any type of bow structure.

It is another object of this invention to provide a novel arrow rest structure particularly designed and constructed to substantially eliminate any restriction or deflection of the arrow moving across the rest during shooting of the arrow.

Another object of this invention is to provide a novel arrow rest adapted to automatically respond to the natural action of the arrow for precluding interference with the shooting thereof.

A further object of this invention is to provide a novel arrow rest which is simple and efficient in operation and economical and durable in construction.

Other and further objects and advantageous features of the present invention will hereinafter more fully appear in connection with the detailed description of the drawings in which:

FIGURE 1 is a broken side elevational view of a bow structure provided with an arrow rest embodying the invention.

FIGURE 2 is a broken front elevational view, partly in section, of a bow structure provided with an arrow rest embodying the invention.

FIGURE 3 is an enlarged sectional elevation view of an arrow rest embodying the invention.

FIGURE 4 is a perspective view of an arrow rest embodying the invention.

FIGURE 5 is a side elevational view of a tool for installing the arrow rest, and illustrating the arrow rest in dotted lines.

Referring to the drawings in detail, reference character 10 generally indicates a bow structure of any suitable type having the usual grip portion 12. The grip 12 may be of substantially any style or configuration and as depicted herein may be provided with a recessed or notched hand receiving portion or hand nock 14 spaced slightly below the shoulder portion 16. The shoulder 16 normally extends laterally across the grip portion 12, and is frequently slightly arcuate, but it is preferable that the shoulder 16 be substantially straight. A bow window portion 18 is usually provided on the grip portion 12 conterminous with the shoulder 16, as particularly shown in FIGURE 2. It is to be understood that the shoulder 16 and window 18 are normally provided on the usual bow grip portion. However, many types of bow structures are not provided with a shoulder portion, or a hand nock, but the present invention may be utilized with the bow regardless of whether or not the recess or neck is provided thereon.

An arrow rest device 20 may be readily installed on the grip portion 12 of the bow 19 in a manner as will be hereinafter set forth in detail, and is preferably disposed slightly above the shoulder 16 to provide a rest for the arrow (not shown) prior to the shooting thereof by the how it The arrow rest device 20 comprises an outer housing or sleeve 22 preferably constructed from free machining brass material, but not limited thereto, and provided with a suitable thread 24 on the outer periphery thereof. The

forward end 26 of the housing 22, as viewed in the drawings, is closed, and is provided with a central aperture 23 ext-ending therethrough for a purpose as will be hereinafter set forth. In addition, a slot 3t) extends diametrically across the end or forward wall 26 for facilitating instailation of the device 20 in the bow grip 12.

A plunger member 32 is slidably disposed within the sleeve 22 and is provided with a reduced stern portion 34 which extends through the aperture 28 and axially outward from the forward wall or end portion 26. The plunger or button 32 is preferably constructed from a suitable plastic material, such as that sold under the trade name Teflon, and is provided with a central bore 36 extending longitudinally therethrough for facilitating reciprocation of the plunger 32 within the sleeve 22. The bore 36 is enlarged at 38 for receiving one end of a suitable spring 40 whereby the plunger 32 is constantly urged in a direction toward the wall 26. The opposite end of the spring 40 is anchored or rests against a retaining ring 42 which is disposed on an annular shoulder or recess 44 provided in the open end 46 of the sleeve 22. The retaining ring 42 may be secured in the groove 44 in any suitable manner, such as by a plurality of radially extending lugs (not shown) provided on the outer periphery of the retaining ring for cooperating with complementary notches (not shown) provided around the shoulder 44.

In the assembled condition of the device 20, the plunger stem 34 extends axially outward from the forward Wall 26 of the sleeve 22, as clearly shown in the drawings. The spring 40 constantly maintains the plunger or button 32 in the furthermost or left hand position as viewed in the drawings. However, the tension of the spring 40 is particularly selected whereby only a very slight pressure is required for depressing the plunger 32, or moving the plunger in a direction in the sleeve 22 against the pressure or force of the spring 40.

INSTALLATION In order to install the arrow rest device 20 in the bow grip 12, it is necessary to provide a bore 48 in the grip 12. The bore 48 is preferably spaced slightly above the shoulder 16 and extends inwardly substantially perpendicular thereto. The bore 48 is of a size for receiving the sleeve 22, and the sleeve 22 may be threadedly secured therein by means of the threaded portion 24. A special tool 50 (FIGURE is provided in order to thread the housing 22 into the bore 43.

The tool 50 is preferably of a hexagonal cross sectional configuration, but not limited thereto, whereby manipulation thereof is facilitated. One end of the tool 50 is provided with a reduced shoulder portion 52 having a pair of oppositely disposed lug members 54 extending forwardly therefrom. In addition, a central bore (not shown) is provided in the tool 50 of a slightly larger diameter than the diameter of the plunger portion 34, and extends longitudinally through the tool 50 between the lugs 54 a suflicient distance to provide clearance for the plunger during the installation of the device 2% in the bow grip 12.

The lug members 54 are adapted to engage the opposite extrernities of the diametric slot 30 provided in the forward wall 26 of the housing 22. In this position, the reduced shoulder portion 52 of the tool 50 is in abutting relation with the forward wall 26 of the housing 22, and the plunger portion 34 is disposed within the central bore of the tool 50. The tool 50 may then be manually rotated whereby the engagement between the lugs 54 and the slot 30 will rotate the sleeve or housing 22 in the bore 48 for threadedly engaging the device therein. It will be readily apparent that rotation of the tool 50 in one direction will move the device 20 inwardly in the bore 48, whereas rotation of the tool in an opposite direction will move the device 20 outwardly in the bore 48.

It has been found preferable to position the device 20 in the bore 48 in such a manner that the plunger portion 34 protrudes from the bow window 18 a length or distance substantially equal to onehalf the diameter of the arrow shaft plus %4 Of an inch. The tool 50 may be manipulated as hereinbefore set forth for adjusting the threaded engagement of the sleeve 22 with the bore 48 to position the plunger 34 as desired with respect to the grip portion 12, or bow window 18.

Subsequent to the insertion or installation of the device 20 in the bore 4S, it is desirable to provide a wear patch 56 (FIGURES 1 and 2) for the portion of the bow window 18 or grip 12 surrounding the plunger 34. The wear patch 56 is preferably of a substantially triangular configuration and is constructed from plastic material, such as the Teflon heretofore mentioned. The wear plate 56 is provided with an aperture (not shown) of a size complementary to the diameter of the plunger 34 whereby the patch 50 may be inserted over the plunger and disposed on the bow window 18. The patch is particularly adapted for receiving a suitable cement in any well known manner, and may be securely cemented in position on the grip 12. It has been found that the cement sold under the trade name of Pliobond provides a secure adhesion of the patch 56 on the grip 12. The patch 56 is of an extremely thin construction and protrudes from the bow window such a slight amount that there is substantially no interference with the arrow. In addition, the inherent qualities of the plastic material from which the patch 56 is constructed tends to improve the action of the arrow.

After the final adjustment of the device 20 in the bore 48, and Subsequent to the installation of the wear patch 56 on the bow window 18, the plunger 34 should extend perpendicularly therefrom approximately of an inch beyond the center of the shaft of the arrow to be used.

OPERATION When the arrow rest device 20 has been installed on the how 10, the bow may then be utilized in the usual manner for the shooting of arrows (not shown). The outwardly extending plunger portion 34 functions as an arrow rest for receiving the arrow thereon as is well known. Upon release of the arrow, the bow normally tends to rotate in the archers hand whereby the upper limb (not shown) of the bow will move in a rearward direction, while the lower limb thereof (not shown) simultaneously moves in a forward direction. At the same time, the arrow shaft apparently flexes upon release of the bow string from the archers fingertips, thus causing the forward end of the arrow to move to the left, or away from the bow, and the tail end thereof to move in a direction toward the bow. This flexing action, combined with the rotative action of the bow in the archers hand, causes the arrow moving across the bow window 18 to drop slightly from the initial rest position on the plunger 34, and as a result the arrow moves across the outer or exposed end of the plunger.

The plunger 34 readily depresses or moves inwardly within the sleeve 22 against the force of the spring 40 upon any slight pressure of the arrow against the outer face or exposed end thereof. Thus, the plunger 34 disappears or moves out of the way of the flight path of the arrow whereby there is substantially no interference with the movement of the arrow. This permits the arrow to move to the left, off the plunger at the earliest possible moment during the arrow flight, and the arrow is free to move without deflection from the plunger 34, thus following a truer flight path than heretofore possible with other types of arrow rests. Since the plunger moves away from the arrow so readily as the arrow passes thereover, it is found that substantially any type of arrow may be utilized in conjunction therewith with greater accuracy and efliciency, even the vane type arrows which are in such great demand today, particularly by experienced archers.

From the foregoing, it will be apparent that the present invention provides a novel arrow rest device having a retractable plunger adapted to readily disappear or move to an out-of-the-way position upon a very slight pressure from the arrow passing thereover. Thus, the arrow rest does not deflect the arrow as it moves across the bow whereby the accuracy of the shot is greatly increased. Furthermore, the inherent lubricating qualities of the plastic material is found to increase the overall efiiciency of the action of the arrow. The novel arrow rest device may be readily installed on substantially any bow structure, and is of an economical and durable construction. Whereas, the present invention has been described in particular relation to the drawings attached hereto, it should be understood that other and further modifications, apart from those shown or suggested herein, may be made within the spirit and scope of this invention.

What is claimed is: 1. In combination with a how, an arrow rest device comprising reciprocal plunger means, means for inserting the plunger means in the bow, and resilient means for urging the plunger means in one direction and responsive to slight pressure on the the plunger means for permitting movement thereof in an opposite direction. 2. In combination with a bow, an arrow rest device comprising reciprocal plunger means, means for inserting the plunger means in the bow, resilient means for urging the plunger means in one direction to provide a fully extended position therefor and responsive to slight pressures on the plunger means for permitting movement thereof in an opposite direction to provide a retracted position therefor,

and adjusting means provided for positioning the plunger means for a predetermined length thereof with respect to the bow in the fully extended position of the plunger means.

3. In combination with a bow,

comprising an outer housing adapted for disposition in the bow,

a plunger reciprocally disposed within the housing and extending axially outward therefrom,

means for adjusting the disposition of the housing in the bow for positioning the plunger at a predetermined extension length from the bow,

spring means disposed within the housing for constantly urging the plunger in one direction,

means for retaining the spring means within the housand said spring means responsive to slight pressures on the plunger for permitting the plunger to move in an opposite direction for retraction thereof from the extended position.

an arrow rest device References Cited by the Examiner UNITED STATES PATENTS RICHARD C. PINKHAM, Primary Examiner.

LEONARD VARNER, 111., LOUIS R. PRINCE,

Examiners.

Claims

1. IN COMBINATION WITH A BOW, AN ARROW REST DEVICE COMPRISING RECIPROCAL PLUNGER MEANS, MEANS FOR INSERTING THE PLUNGER MEANS IN THE BOW, AND RESILIENT MEANS FOR URGING THE PLUNGER MEANS IN