U.S. patent number 3,695,618 [Application Number 05/066,843] was granted by the patent office on 1972-10-03 for golf club wood with face plate insert.
Invention is credited to William H. Thompson, Edward R. Woolley.
United States Patent |
3,695,618 |
Woolley , et al. |
October 3, 1972 |
GOLF CLUB WOOD WITH FACE PLATE INSERT
Abstract
A new and useful improvement in the construction of the head of
a wooden golf club is disclosed. The improvement comprises a
metallic insert with a plurality of holes therein between the club
head block and a plastic face plate.
Inventors: |
Woolley; Edward R. (Rancho
Santa Fe, CA), Thompson; William H. (Escondido, CA) |
Family
ID: |
22072068 |
Appl.
No.: |
05/066,843 |
Filed: |
August 25, 1970 |
Current U.S.
Class: |
473/342;
273/DIG.3; 273/DIG.1; 273/DIG.6 |
Current CPC
Class: |
A63B
53/04 (20130101); A63B 53/0466 (20130101); A63B
60/00 (20151001); Y10S 273/01 (20130101); A63B
2209/00 (20130101); Y10S 273/03 (20130101); A63B
53/0425 (20200801); Y10S 273/06 (20130101); A63B
60/50 (20151001); A63B 53/0416 (20200801) |
Current International
Class: |
A63B
53/04 (20060101); A63b 053/04 () |
Field of
Search: |
;273/67,77R,82R,82A,162,164,167-175,186A,193,194 |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
|
|
|
|
|
|
|
267,755 |
|
Mar 1927 |
|
GB |
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18,134 |
|
1902 |
|
GB |
|
Primary Examiner: Pinkham; Richard C.
Assistant Examiner: Apley; Richard J.
Claims
What is claimed is:
1. In a golf club comprising a wood club head block with a recess
in the striking face thereof and a plastic face plate therein the
improvement which comprises a brass insert having a thickness from
about 0.01 inches to about 0.04 inches between said club head block
recess and said plastic face plate, said brass insert having a
continuous planar surface on the side which is against the club
head block recess, the planar surface of said brass insert being in
intimate contact with the club head block recess throughout the
planar surface, said planar surface having a plurality of holes of
varying size irregularly spaced and located throughout in addition
to any screw holes for attaching the plastic face plate to the club
head block.
2. The golf club of claim 1 wherein the total area of the plurality
of holes in the brass insert is at least 5 percent of the area of
said brass insert.
3. The golf club of claim 1 wherein said brass insert has legs
thereon between the sides of the face plate and the sides of the
recess in the club head block.
4. The golf club of claim 3 wherein said legs have one or more
holes therein.
5. The golf club of claim 1 wherein adhesive is used as an
attachment means for maintaining the plastic face plate, the brass
insert, and the club head block in fixed position with respect to
each other and wherein the plurality of holes in the said brass
insert are completely filled with adhesive.
Description
In the game of golf there are primarily two sets of clubs which are
used, referred to as "woods" and "irons". The present invention is
an improvement in the club head of the "woods." "Woods" are used
where it is desired to hit the ball a long distance and it is
generally considered that "woods" give greater distance because of
the weight of the club head and also because of the resiliency of a
wooden club head as opposed to a steel club head such as is used in
irons.
It is known that to add weight to the club head block increases its
mass and thus increases the distance. It is customary to add the
weight to the back of the club head. This, however, may tend to
unbalance the club head and give the club poor "click" and "feel."
"Click" and "feel" are well known in the golfing industry and are
properties which define the way golf clubs handle when used under
playing conditions. It has now been discovered that better "click"
and "feel" can be given to the club by placing at least a portion
of the weight added to the club head as a metal backing plate
between the plastic face plate and club head block. It is thought
that this better "feel" is due to a more even distribution of the
weight added to the club. It has been found that excellent "click"
and "feel" are obtained when the mass added is distributed
throughout the area between the plastic face plate and the club
head block and it is important that there be a plurality of holes
in the metal plate. These holes are in addition to any holes used
for screwing the plastic face plate to the club head block. It is
believed that the better "click" and "feel" result from
communication between the plastic face plate and the club head
block through the holes in the metal plate. Such communication is
not possible if the metal plate is solid or has holes only for
screws.
It has also been found that to obtain the best "click" and "feel"
there should be legs on the metal plate, said legs being situated
between the sides of the plastic face plate and the club head
block. These legs may also have one or more holes therein, if
desired. This improvement in "click" and "feel" is most noticeable
when a ball is hit on the extremities of the face plate since there
is greater concentration of weight behind the ball at these points
than would be if these legs on the metal plate were not
present.
These and other advantages of the present invention may be more
fully understood in reference to the following drawings in which
like numbers are used for like parts, and in which:
FIG. 1 shows a club head block, the metal insert of the present
invention and a plastic face plate in spaced relation before
assembly; and
FIG. 2 is the assembled golf club head of FIG. 1.
As shown in FIG. 1 there is a standard golf club head 10 comprising
a club head wood block 11 and plastic face plate 12. The plastic
face plate is known in the art and is commonly made of such
materials as polycarbonate, polyamide, epoxy or phenolic resins.
Likewise, the club head block 11 is known in the art and is usually
made of wood, with persimmon wood generally considered as best. The
plastic face plate is usually affixed to the club head by screws 14
and also by adhesive between the face plate and the club head
block.
The preferred embodiment of the metal insert 20 of the present
invention has a plurality of holes 22 of varying sizes therein in
addition to standard screw holes, if present. The metal plate 26 as
shown is essentially in the shape of an isosceles trapezoid with
legs 28 on each of the non-parallel sides. The legs of the metal
plate may also have holes therein as shown. The angle 30 between
the legs 28 and the plate 26 may be varied as desired although we
prefer an angle from about 90.degree. to about 130.degree..
The metal insert is preferably made of brass. With a brass insert,
a thickness of from about 0.01 to about 0.04 inches has been found
to give excellent results. While a few holes 22 are satisfactory,
best results are achieved when the holes 22 equal in total area at
least 5 percent of the area of plate 26 and preferably the total
area of the holes is at least 10 percent of the area of plate
26.
When assembled, the metal plate 26 fits snugly against wall 32 of
club head block 11 and legs 28 fit snugly against walls 34 of the
club head block. In like manner, the sides 36 of plastic face plate
12 fit snugly against legs 28 of the metal insert 20.
FIG. 2 shows the parts of FIG. 1 in assembled form. As shown
therein the metal insert 20 is between the plastic face plate 12
and the club head block 11. In the embodiment shown, the edges of
the metal plate 26 and of the legs 28 are visible. While this is a
highly desirable form of construction from an aesthetic point of
view, it will be understood that these edges may be covered with
paint, plastic, or the like if desired. As shown in this
embodiment, screws 14 are also used to hold the plastic face plate
in place. It will be understood that either adhesive or screws may
be used but the preferred form of construction includes both. Any
conventional adhesive is suitable, such as epoxies, phenol
formaldehydes, furfurals, etc. The empty holes 22 (FIG. 1) normally
become filled with the adhesive used to attach the plastic face
plate 12 to club head block 11. While the exact reason is not fully
understood, it has been found that the improved "click" and "feel"
due to the communication between the plastic insert and the club
head block through the holes of the metal insert is still apparent
even when the holes are not completely filled with adhesive.
It will be understood that it is intended to cover all changes and
modifications of the preferred embodiments of the invention herein
chosen for the purpose of illustration which do not constitute
departures from the spirit and scope of the invention.
* * * * *