Archery bow

A bow frame is formed with a straight central portion and a pair of end limbs, with the latter extending either parallel to or toward the axis of draw. The bow string is about as long as the said central portion and is drawn toward the latter. The limbs are integral with the straight central portion, or may be pivotally mounted to the limb ends and biased outwardly by springs.

PRIOR ART OF INTEREST 
Cates U.S. Pat. No. 1,584,729--5-18-26 Barna U.S. Pat. No. 
2,957,470--10-25-60 
BACKGROUND AND SUMMARY OF THE INVENTION 
This invention relates to an archery bow. 
Heretofore, most archery bows have comprised a frame having limbs which 
extended outwardly away from the axis of draw, with the draw string 
connected between the outwardly extending limb tip portions. This type of 
construction has required that the draw string be drawn away from the bow 
frame in order to cause the limbs to flex. 
It has been suggested as in the above identified U.S. Pat. No. 1,584,729 to 
form a bow of a single piece of tempered wire which is embedded in a base 
which acts as an arrow guide and a guard for the archer's hand. In that 
patent, the wire is drawn toward the base. 
The present invention is based on an improvement over the above-mentioned 
devices. In accordance with one embodiment of the invention, the bow frame 
is integrally formed with a straight central portion and a pair of end 
limbs, with the latter not extending away from the axis of draw. The end 
limbs are thus either parallel to the axis of draw, or extend toward said 
axis. That is, the end limbs form an angle with inner face of the frame's 
central portion which is 90.degree. or less. The draw string is straight, 
is attached adjacent the tips of the bow limbs, and is of about the same 
length as the frame's central portion. 
In accordance with another embodiment of the invention, the limbs are 
pivotally mounted to the frame's central portion and are biased outwardly 
by springs to hold the draw string tight. 
In both embodiments, the draw string is drawn toward the frame's central 
portion.

DESCRIPTION OF THE PREFERRED EMBODIMENT 
As shown in FIG. 1 of the drawings, the concept of the invention is 
embodied in an archery bow 1 having a frame comprising an elongated 
straight central portion 2 and a pair of end portions or limbs 3. In this 
embodiment, limbs 3 are integral with central portion 2 and curve inwardly 
toward the axis of draw 4 which is perpendicular to and passes through the 
center of portion 2. The ends of the limbs thus are normally disposed at 
less than 90.degree. from portion 2 and face toward axis 4. A free 
straight draw string 5 is connected to the end portions of limbs 3 and is 
held in tension by the flexible limbs. Draw string 5 is co-extensive with 
straight central portion 2 and parallel thereto, and is substantially 
co-planar with the plane formed by the bow frame and limbs 3. 
As shown in FIGS. 2 and 3, when in use draw string 5 is pulled toward the 
bow frame and actually overlaps central portion 2 before it is released. 
Limbs 3 bow or flex inwardly toward central portion 2. A high velocity is 
thus imparted to the arrow. The construction is such that during an arrow 
projecting operation string 5 is drawn by one hand of the user toward 
central portion 2 while the other hand of the user holds portion 2 in 
front of the user's body. 
If desired, a handle grip 6 may be attached to central portion 2, with grip 
6 having an edge 7 closely adjacent and parallel to axis 4, as shown in 
FIG. 5. Edge 7 could at 8 support the arrow head end when aiming the 
arrow. 
A second embodiment of the inventive concept is shown in FIGS. 6 and 7. In 
this instance, the bow 9 also includes a straight central portion 10 and a 
pair of straight end limbs 11. Here, however, limbs 11 are normally 
disposed at 90.degree. to portion 10 and are separate elements pivotally 
mounted at their ends to the end portions of straight portion 10 as at 12. 
A straight draw string 13 is connected to the outer end portions of limbs 
11 and is co-extensive with portion 10 and parallel thereto. Draw string 
13 prevents limbs 11 from pivoting outwardly beyond 90.degree.. 
Limbs 11 are biased outwardly by means such as springs 14 on portion 10 to 
tension draw string 13. FIG. 7 shows the draw string partly drawn toward 
the bow frame with limbs 11 being forced inwardly against the force of 
springs 14. 
The bow of the invention has been found to provide increased arrow velocity 
for the same weight of bow, as compared to prior devices. 
Various modes of carrying out the invention are contemplated as being 
within the scope of the following claims particularly pointing out and 
distinctly claiming the subject matter which is regarded as the invention.