U.S. patent number 3,923,215 [Application Number 05/373,191] was granted by the patent office on 1975-12-02 for golf ball position mark assembly.
This patent grant is currently assigned to TDK Electronic Company. Invention is credited to Shigeo Suzuki.
United States Patent |
3,923,215 |
Suzuki |
December 2, 1975 |
**Please see images for:
( Certificate of Correction ) ** |
Golf ball position mark assembly
Abstract
A golf ball position mark assembly has a cylindrical body having
a permanent magnet and a mark disk having a projection. The height
of the side wall of the body is longer than the thickness of the
mark disk and shorter than the height of the projection.
Inventors: |
Suzuki; Shigeo (Tokyo,
JA) |
Assignee: |
TDK Electronic Company (Tokyo,
JA)
|
Family
ID: |
11468607 |
Appl.
No.: |
05/373,191 |
Filed: |
June 25, 1973 |
Foreign Application Priority Data
|
|
|
|
|
Dec 26, 1975 [JA] |
|
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47-000247 |
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Current U.S.
Class: |
224/183; 224/666;
224/679; 224/674; 224/918 |
Current CPC
Class: |
A63B
57/207 (20151001); A63B 57/353 (20151001); Y10S
224/918 (20130101) |
Current International
Class: |
A63B
57/00 (20060101); A45F 005/02 () |
Field of
Search: |
;224/5C
;24/21B,73MS,3F,3R ;248/26A |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Spar; Robert J.
Assistant Examiner: Forsberg; Jerold M.
Attorney, Agent or Firm: Oblon, Fisher, Spivak, McClelland
& Maier
Claims
What is claimed as new and desired to be secured by Letters Patent
of the United States is:
1. A golf ball position marker assembly comprising:
a golf ball position marker comprising a metallic disc with a
synthetic resin pointed rod for insertion into the ground
projecting from the center of the disc,
a golf ball position marker holder comprising:
a synthetic resin hollow cylinder having its top end open and its
bottom end at least partially closed, the bottom end being
perpendicular to the side walls of the cylinder,
a permanent magnet positioned to lie within the cylinder and flush
against the bottom end of the cylinder,
the golf ball position marker being positioned to lie within the
cylinder and flush against the permanent magnet to which it is
attracted,
the side walls of the cylinder having a height greater than the
combined thicknesses of the permanent magnet and the metallic disc
but less than the height of the synthetic resin pointed rod for
insertion into the ground projecting from the center of the
disc,
U-shaped non-movable holding means integrally mounted to the
cylinder to form an opening between the cylinder and the U-shaped
holding means to permit passage of a shoe string therethrough to
permit attachment of the golf ball position marker assembly to a
shoe to permit convenient carrying of the golf ball position marker
assembly,
the holding means being rectangular shaped and formed at the bottom
end of the cylinder and having a groove therein, the bottom portion
of the cylinder having a similar groove therein disposed opposite
thereto, the oppositely disposed grooves retaining a shoe string
passed therethrough.
2. A golf ball position marker assembly comprising:
a golf ball position marker comprising a metallic disc with a
synthetic resin pointed rod for insertion into the ground
projecting from the center of the disc,
a golf ball position marker holder comprising:
a synthetic resin hollow cylinder having its top end open and its
bottom end at least partially closed, the bottom end being
perpendicular to the side walls of the cylinder,
a permanent magnet positioned to lie within the cylinder and flush
against the bottom end of the cylinder,
the golf ball position marker being positioned to lie within the
cylinder and flush against the permanent magnet to which it is
attracted,
the side walls of the cylinder having a height greater than the
combined thicknesses of the permanent magnet and the metallic disc
but less than the height of the synthetic resin pointed rod for
insertion into the ground projecting from the center of the
disc,
U-shaped nonmovable holding means integrally mounted to the
cylinder to form an opening between the cylinder and the U-shaped
holding means to permit passage of a shoe string therethrough to
permit attachment of the golf ball position marker assembly to a
shoe to permit convenient carrying of the golf ball position marker
assembly,
the U-shaped holding means having a narrow opening therein to
permit passage of a shoe string therethrough without the necessity
of passing an end of the shoe string through the opening between
the U-shaped holding means and the cylinder, the narrow opening
being inclined at an angle of substantially less than 90.degree. to
the U-shaped holding means to restrict inadvertent passage of the
shoe string through the narrow opening.
Description
BACKGROUND OF THE INVENTION
1. Field of the Invention:
This invention relates in general to a mark for showing the
position of a golf ball and more particularly, to a golf ball
position mark assembly having a mark holder and a mark device for
showing the position of a golf ball.
2. Description of the Prior Art:
It has been known, as shown in FIGS. 1 and 2, to use a mark device
for showing the position of a golf ball. In FIGS. 1 and 2 the
reference numeral 1 designates a semi-spherical body made of a
synthetic resin which has a safety pin 2 mounted on the back side
thereof. A disc permanent magnet 3 is fitted with circular arc
shape side walls 4 and 5 at the top of the semi-spherical body 1.
The reference numeral 6 designates a magnetic metal mark plate such
as an iron plate. When the mark device is purchased the mark plate
6 is joined to the permanent magnet 3 of the semi-spherical body 1
which may be attached to ones clothing and the like with the safety
pin. When the position of the golf ball is to be marked, the mark
plate is taken out of the semi-spherical body 1 and is placed at
the position where the golf ball has been present, so as to show
the position. The side walls 4 and 5 are formed for preventing loss
of the mark plate.
While somewhat satisfactory the conventional mark device assembly
has certain disadvantages in that the mark plate is easily
fluttered by wind, when the mark plate is placed at the position of
the golf ball on a green top. In addition the mark plate can only
be removed from the side walls 4 and 5 by inserting a nail or the
like between the mark plate 6 and the permanent magnet 3. Such a
procedure makes use inconvenient.
SUMMARY OF THE INVENTION
Accordingly, it is an object of this invention to provide a new and
improved unique golf ball position mark assembly which overcomes
all of the abovementioned disadvantages.
Briefly, in accordance with this invention, the foregoing and other
objects are attained by the provision of a golf ball position mark
assembly which includes a metal disk having a projection on the
front surface thereof and a shaped body preferably cylindrical. A
permanent magnet is molded at the inner bottom of the body so as to
join the metal disk to the permanent magnet. A side wall of the
shaped body has a height which is greater than the thickness of the
metal disk and lower than the projection of the metal disk.
Additionally, means for holding the shaped body to a golf player
are provided.
The cylindrical shaped body is preferably made of a synthetic resin
and the projection is preferably made of a synthetic resin and has
a conical shape. The holding means has at least one hole for
passing a thread and is formed on the shaped body.
BRIEF DESCRIPTION OF THE DRAWINGS
The forgoing and other features of this invention will become more
readily appreciated by reference to the following detailed
description, when considered in connection with the accompanying
drawings wherein like reference numerals designate identical or
corresponding parts throughout the disclosure.
FIG. 1 and FIG. 2 are respectively front and back schematic views
of a conventional golf ball position mark assembly.
FIG. 3 is a schematic view of one preferred embodiment of a golf
ball position mark assembly according to this invention.
FIG. 4 is a sectional view of the embodiment of FIG. 3.
FIG. 5 is a schematic view of another alternative and preferred
embodiment of the shaped body having a holding means.
FIG. 6 is a front view of still another alternative and preferred
embodiment of a golf ball position mark assembly according to this
invention.
FIG. 7 is a sectional view of the embodiment of FIG. 6.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
Referring now to the drawings, especially FIGS. 3 and 4, a
preferred embodiment of the present invention is shown and the
reference numeral 7 designates a cylindrical body preferably made
of a synthetic resin and a permanent magnet 8 which is molded at
the inner bottom of the cylindrical body. Obviously, the body 7 may
be of shapes other than cylindrical. The reference numeral 9
designates a magnetic metal disk made of iron or the like and a
projection 10, such as of a conical shape, made preferably of a
synthetic resin is connected preferably at the center of the disk.
The reference numeral 11 designates a holding means having a hole
12 through which a thread such as of the shoes can be passed, so as
to conveniently carry the assembly to a green top.
The holding means can be various types. Thus, a groove 13 can be
formed on the holding means to reach the hole 12, thereby making it
possible to pass a ring shape thread through the groove to the
holding means, so that it is easy to use. When the mark plate metal
disk 9 is not being used the same is held on the body 7 and is
adhered to the permanent magnet 8. The thickness d of the disk 9 is
smaller than the height l of the side wall 14, and is preferably in
a range of l =2d.about.3d. The height of the projection 10 is
larger than the height of the side wall 14. The permanent magnet 8
is preferably of the multi-polar type, and thereby has a great
attractive force.
The golf ball position mark assembly of this invention can be
readily carried by attaching it to a thread (shoe string) of a
shoe, a belt, or the like. When the mark disk 9 is used for
designating the position of the golf ball, the disk having the
projection is taken out of the body having the permanent magnet 8
and the projection 10 is stuck into the ground of the green top to
fix the mark disk.
It should be understood that with the present invention, since the
height of the side wall is higher than the thickness of the disk,
the mark disk is prevented from being easily detached from the
permanent magnet while it is carried in the assembly. Moreover,
with the present invention, since the projection is higher than the
side wall, the mark disk can be easily separated from the permanent
magnet by inclining the projection by ones finger or the like. In
addition, since the projection is made of a synthetic resin, there
is no danger of injury to the skin of the user, yet the projection
can be easily placed into the ground.
In an alternative preferred embodiment, shown in FIG. 5, the
holding means 11 can be formed at the back surface of the
cylindrical body 7. It is also preferable to form the holding means
11 at the back surface of the cylindrical body 7 as shown in FIGS.
6 and 7, wherein the grooves 15 and 16 can be formed on the surface
of the holding means 11, so that a thread for holding the body can
be passed therethrough.
It should now be apparant that in accordance with this invention, a
golf ball position marker has a projection so that the mark disk
can be easily fixed on the ground by sticking the projection
therein and it can also be easily separated from the body by
inclining the projection. Accordingly, it is quite convenient to
use the marker of the present invention in golf play.
Obviously, numerous modifications and variations of the present
invention are possible in light of the above teachings. It is
therefore to be understood, that within the scope of the teachings
herein and the appended claims the invention may be practiced
otherwise than as specifically described herein.
* * * * *