US2960084A

US2960084A - Overdraw bow handle

Info

Publication number: US2960084A
Application number: US772783A
Authority: US
Inventors: Kramer Walter
Original assignee: Individual
Current assignee: Individual
Priority date: 1958-11-10
Filing date: 1958-11-10
Publication date: 1960-11-15
Anticipated expiration: 1977-11-15

Description

NOV. 15, 1960 w, KRAMER 2,960,084

OVERDRAW BOW HANDLE Filed Nov. 10 1958 2 Sheets-Sheet 1 INVENTOP WALTER KRAMER ATTORNEY FIG. I

Nov. 15, 1960 w, KRAMER 2,960,084

OVERDRAW BOW HANDLE Filed NOV. 19, 1958 2 Sheets-Sheet 2 W1 ll iiiil FIG. 8

FIG. IO

INVE NT OP WALTER KRAMER ATTORNEY OVERDRAW BOW HANDLE Walter Kramer, 2586 St. Clair Ave. W., Toronto, Ontario, Canada Filed Nov. 10, 1958, Ser. No. 772,783

2 Claims. (Cl. 12424) This invention relates to an archers bow of the type having a string attached to the tips of a bow made of inherently resilient material.

The standard type of archers bow leaves much to be desired in its ability to withstand the high stresses to which it is subjected upon being repeatedly drawn by the user, and consequently its power for casting arrows at substantially constant velocity cannot be relied upon. Such a bow has been provided at a central position with an opening to which an arrow tube is secured and set perpendicularly to the plane of the bow when unstressed. A manually releasable spring loaded latch, mounted on the tube and having an end passing through an opening in the wall thereof, is biassed into engagement with a latch seat on the arrow for holding the latter ready for casting as the archer sights the target through a window in the bow preparatory to the release of the latch. Such a mechanical contrivance for assisting an archers aim may be admissible for archery teaching purposes, but its use may be inadmissible in archery sporting events.

In another construction of bow, laminated bow limbs have their inner ends socketed into an intermediate relatively rigid handle, the bow limbs each being reflexed in a forward direction, i.e. away from the archer when the bow is braced, the underlying idea of this bow being that its draw shows a substantial increase over that of the standard bow above referred to.

A primary object of the invention is to provide an improved bow which is capable of casting arrows with greater accuracy than heretofore.

Another object is to provide an improved bow which is capable of casting shorter arrows with the same propelling force as long arrows are cast by the conventional bow.

A further object is to provide an improved bow which is capable of casting arrows at a relatively lower trajectory to conventional bows.

An additional object of the invention is to provide an improved bow by the use of which an archer will be enabled to cast arrows long distances more accurately.

For a better understanding of the invention a form of construction of archers bow according to the invention, is illustrated by way of example, in the accompanying drawings in which:

Fig. 1 is a side elevation of the bow in its normal, relaxed condition and showing the string with an arrow depicted in dot and dash lines.

Fig. 2 is a side view on an enlarged scale of the handle portion of the bow and showing the arrow rest and window for the arrow.

Fig. 3 is a cross-section taken on the section line 3--3, Fig. 2.

Fig. 4 is a cross-section taken on the section line 4-4, Fig. 2.

Fig. 5 is a cross-section taken on the section line 55, Fig. 2.

Fig. 6 is a cross-section taken on the section line 6-6, Fig. 2.

2,960,084 Patented Nov. 15, 1960 Fig. 7 is a cross-section taken on the section line 7-7, Fig. 2.

Fig. 8 is a fragmentary rear view of the bow showing the handle portion.

Fig. 9 is a side elevation on a reduced scale depicting the bow in relaxed form.

Fig. 10 is a side view showing the bow drawn with an arrow indicated in dot and dash lines.

As will be observed in the drawing, an archery bow, indicated generally at 11, is made of inherently resilient material and comprises a central handle area 12 which is oiiset in a perpendicular plane to the general plane of the bow, and curved

reflexed limbs

13, 14 which are directed away from the normal casting position taken up by an archer. The tips of the

limbs

13, 14 are connected to the ends of the normal string 15 used for drawing the bow and storing energy for casting an arrow. The ofiset handle area 12 indicated by the dotted lines H-A, Fig. 1, has a rigid construction comparable to the

limbs

13, 14.

The how 11 is of a composite bonded construction throughout as will be observed with reference to Figs. 3-7.

Where the handle area 12 merges from its substantially rigid central portion into the roots 15 of the

resilient limbs

13, 14 at which section 3-3 is taken, the cross section comprises a core 16 of maplewood embraced on both sides by glass fiber laminations 17, Fig. 3. The cross-section of the handle area 12 progressively increases from the roots 15 and as shown in Fig. 4 incorporates an inner core 18 made of laminated wood which is encased by the maplewood core 16 and embraced on both sides by the laminations 17. The region of increasing cross-section is curved rearwardly at 19 and then abruptly reversely turned thereby to provide a generally horizontal step 20 which contains the maximum cross-section of the handle area and is oifset substantially perpendicular to the general plane of the bow. The forward end or tip 21 of the step 20 then proceeds downwardly at 22 with a gradually diminishing cross-section to the position where it merges into the root of the lower limb 14.

The rearwardly curved part 19 and the downwardly curved part 22 are of substantially identical cross-section subject to the exception that the step is devoid of the glass fiber covering 17 the latter terminating at the rear side positions indicated at 23, Fig. 2.

The step 20 is provided with a stump 24 which serves as an arrow rest, the stump 24 being disposed rearwardly of the step 20 and adjoining the reawardly curved portion 19. The symmetrical form and the rearwardly curved portion 19 is cut out and as seen in Figure 8 provides a sighting window 25 for the archer.

It will be appreciated that when the string 15 is pulled by an archer under tension for drawing the bow, as depicted in Fig. 10, the reflexed end portions of the

limbs

13, 14 are reversely flexed under drawing stresses, while the pointed end of the arrow, indicated at 26, rests on the stump 24. Consequently, the marksman observing his target through the window 25 is more easily capable of taking careful aim.

It will be noted that the

ends

13 and 14 are directed forwardly beyond the general plane of the bow and the step 20 is of considerable length along the path through which an arrow is cast. The forwardly extending reflex ends of the bow together with the long step 20 provides means whereby the bow may be overdrawn to provide a greater force than the conventional bow thus permitting a lower trajectory and greater accuracy in addition to the more efficient aiming through the sight window 25 along the upper surface of the step 20.

The invention is not limited to the details of construction above described by way of example, and modifications may be made without departing from the basic ideas of the invention above expressed and as defined in the appended claims.

I claim:

1. An elongated bow having a forward and rear portion and including relatively rigid central handle-and-aiming portion integral with flexible upper and lower limbs, said limbs comprising similarly conformed portions having a forwardly extending reflex end for increasing the draw of the bow, said upper limb having a root portion merging into the upper portion of said central handleand-aiming portion, said central handle-and-airning portion being curved rearwardly from said root portion and including a lateral sight window therethrough, a for- 15 wardly extending step portion at the base of said sight Window and perpendicular to the longitudinal plane of said bow, said step extending a substantial length along the path which an arrow will be cast from said bow,

said step being integral at its forward end with an upwardly and forwardly curved portion merging into the lower limb of said bow.

2. The structure of claim 1; said bow limbs comprising laminated wooden strips externally reinforced with glass fiber, said handle portion including an inner wooden core into which said wooden strips and glass fiber laminations merge, and said step being comprised substantially of said wooden core.

References Cited in the file of this patent UNITED STATES PATENTS 2,507,271 Ringel May 9, 1950 2,600,250 Lake et al. June 10, 1952 2,665,679 Gaskell Jan. 12, 1954 OTHER REFERENCES Archery for February 1957; page 29 cited. Archery for March 1957; page 46 cited.