U.S. patent number 3,575,372 [Application Number 04/779,852] was granted by the patent office on 1971-04-20 for floor socket.
This patent grant is currently assigned to Madsen Manufacturing Limited. Invention is credited to John Ernest Emberson.
United States Patent |
3,575,372 |
Emberson |
April 20, 1971 |
FLOOR SOCKET
Abstract
An anchor socket for a gymnasium floor is formed of a tubular
well with interior threads cooperating with the exterior threads of
a tubular anchor assembly rotatable in the well. The anchor
assembly has a hinged hook for securing an anchor stay.
Inventors: |
Emberson; John Ernest
(Unionville, Ontario, CA) |
Assignee: |
Madsen Manufacturing Limited
(N/A)
|
Family
ID: |
25117775 |
Appl.
No.: |
04/779,852 |
Filed: |
November 29, 1968 |
Current U.S.
Class: |
248/501; 52/704;
248/499 |
Current CPC
Class: |
A63B
71/028 (20130101) |
Current International
Class: |
A63B
71/02 (20060101); B61d 045/00 (); E02d
005/80 () |
Field of
Search: |
;248/361
;52/146,704 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Sutherland; Henry C.
Claims
I claim:
1. A floor socket consisting of an annular dished plate member
secured to said floor, a hinged cover to said plate, said cover in
the closed position lying flush with said floor, a tubular well
aligned with the annulus of said dished plate, said well being
secured to the underside of said dished plate, interior threads on
said well, a tubular anchor member in said well having exterior
threads cooperating with said interior threads, an upwardly
pivotable arm on one side of said anchor member, said arm having a
hook intermediate of its ends, the downward movement of said arm
being terminated when its free end meets the opposed side of said
tubular member, said anchor member due to said cooperating threads
being freely swivelable both upwards to extend through said annular
dished plate member and downwards to a position where its upper end
and downwardly positioned pivotable arm both lie below the level of
said cover when closed.
2. A floor socket according to claim 1 wherein said well has a
restricted lower portion to terminate the swivelable downward
movement of said anchor member.
Description
FIELD OF THE INVENTION
This invention relates to floor sockets and has particular relation
to a floor socket intended to be set in the floor of a gymnasium.
Such floor sockets provide securing means for an anchoring cable to
hold gymnastic equipment in place.
SUMMARY OF THE INVENTION
It is a feature of the floor socket constructed according to the
invention that it incorporates a hook which provides for both
high-bar and floor apparatus anchoring; also, the floor socket of
the invention incorporates the feature of permitting complete
circular swiveling of the anchor hook attached thereto so that the
anchoring cable is always subjected to forces in tension and not to
any forces.
It is a further feature of the floor socket constructed according
to the invention that it is adapted to locate and support therein a
fixed bar.
It is a further feature of the invention that the floor socket of
the invention incorporates a cover which on closure is flush with
the floor of the gymnasium.
DESCRIPTION OF THE DRAWINGS
The invention will now be described in relation to the accompanying
drawings in which:
FIG. 1 is a perspective view, in the closed position, of a floor
socket constructed according to the invention;
FIG. 2 is a partial perspective view, in the open position, of the
floor socket shown in FIG. 1 and further illustrating the location
of a fixed bar;
FIG. 3 is a partial perspective view showing the socket hook
attached to an anchor cable;
FIG. 4 is a perspective exploded view showing the construction in
detail of the floor socket shown in FIG. 1.
DESCRIPTION OF THE PREFERRED EMBODIMENT
With reference to FIG. 1, the floor socket, generally denoted by
the numeral 10, is located in a gymnasium floor 12 so that the
closed cover 14 of socket 10 lies flush with the floor 12. Although
the cover 14 may for instance be circular, it is preferable to make
it rectangular, as illustrated, in order to blend with the floor
pattern, and this configuration makes it easier to install. The
floor socket 10 is set in the concrete 16 which provides support
for the floor 12.
As shown more particularly in FIG. 4, the floor socket 10 includes
a tubular socket well 18 terminated at its lower end by a centrally
apertured wall 20 which is sealed by a grout plug 22 which ensures
accurate game standard height. As already mentioned, floor socket
10 is set in the concrete 16, and to ensure rigidity, anchoring
lugs 24 are provided on the exterior of the socket well 18.
Interior of the socket well 18, and located adjacent to the end
wall 20, is a collar 26 secured in place by recessed screws 28.
The socket well 18 is stepped towards its upper end, as shown in
FIG. 4, to provide a terminating portion 30 having an inner and
external diameter larger than that of the lower portion of the well
18. The terminating portion 30 has an internal thread 32 adjacent
its upper end. The terminating portion 30 also has a pair of
external, spaced-apart abutments 34 and 36, which are diametrically
opposed.
An anchor hook assembly, generally denoted by the numeral 38, is
rotatably engaged in the terminating portion 30 of the well 18, and
this is accomplished by threads 40 provided on the exterior surface
of the tubular portion 42 of the assembly 38 engaging with the
threads 32 of the well 18.
The tubular portion 42 of the assembly 38 terminates in an
outwardly disposed flange 44 which terminates the downward travel
of the tubular portion 42 on rotation in the well 18. The flange 44
has a pair of spaced-apart, outwardly disposed abutments 46 and 48
traversed by a pin 50. An arm 52 is hinged on the pin 50 between
the abutments 46 and 48. The arm 52 is of a length sufficient to
span the tubular portion 42 of the assembly 38, and in this
position its free end rests in a diametrically opposed slot 54
provided in the flange 44.
The arm 52 has an integral hook 56 which projects downwards and
inwards with respect to the tubular portion 42 of the assembly 38
when the free end of the arm 52 rests in the slot 54.
Seated on top of the terminating portion 30 of the well 18 is the
flange 58 of an annular dished plate, generally denoted by the
numeral 60. The inner edge of the flange 58 is clear of the
assembly 38 and is secured to the well 18 by means of screws 62
passing through the spaced-apart abutments 46 and 48, respectively,
and entering threaded holes 66 and 68 in the flange 58.
The plate 60 has a wall 70 extending outwardly from the flange 58.
The wall 70 terminates in a flat portion 72, the edge of which is
rectangular in configuration. Threaded holes 74 are provided in the
flat portion 72 adjacent each corner.
A rectangular hollow member, generally denoted by the numeral 76,
having integral upstanding walls 78, 80, 82 and 84, is supported on
the plate 60 and is secured thereto by means of screws 86 threaded
into the individual threaded holes 74 through internal abutments
88. The edge of the hollow member 76 is contemporaneous with the
edge of the flat portion 72 of the dished plate 60.
A double-hinged cover 90 is provided to the socket 10, the double
hinge enabling the cover 90 to lie flat on the floor 12 in the open
position. To provide the double hinge, corresponding ends of each
wall 78 and 82 of the rectangular hollow member 76 carry a pin 92.
The flanges 94 and 96 of a channel member 98 located adjacent the
wall 80 of the hollow member 76 are pivoted on the pins 92. The
flanges 94 and 96 of the channel 98 also carry another pin 100 on
which in turn is pivoted the cover 90, the pins 100 passing through
abutments 102 provided on the underside of the cover 90, which is
stepped, as shown, above the abutments 102.
The socket 10 is set in the floor 12 so that the upper edge of the
rectangular hollow member 76 is flush with the floor 12; the
double-hinged cover 90 is then capable of lying flat on the floor
in the open position, and in the closed position is flush with the
floor 12, thus offering no impediment to movement thereon.
In the open position, the hook 56 of the arm 52 may secure an
anchor cable 104, as shown in FIG. 3, in which case the anchor hook
assembly 38 will rotate to a position where the arm 52 is in line
with the anchor cable 104 so that the latter is in tension only and
free from kinks. Alternatively, as illustrated in FIG. 2, the
socket 10 may be used to locate a fixed bar 106, the lower end of
which rests on the collar 26; the fixed bar 106 is provided with a
vertically disposed slot 108 in which is located the hook 56 of the
arm 52, the engagement of the hook 56 in the slot 108 maintaining
the bar 106 in position.
* * * * *