U.S. patent number 3,925,929 [Application Number 05/560,334] was granted by the patent office on 1975-12-16 for parking space barrier.
Invention is credited to George R. Montgomery.
United States Patent |
3,925,929 |
Montgomery |
December 16, 1975 |
Parking space barrier
Abstract
A barrier post to prevent unauthorized use of a private parking
space includes a firmly anchored base and a post which is shiftable
from an upright barrier position to a lowered inactive position. A
simplified locking and release mechanism permits separating the
post from its shear pin holding means by a lifting and pivoting
manipulation.
Inventors: |
Montgomery; George R. (West
Palm Beach, FL) |
Family
ID: |
24237355 |
Appl.
No.: |
05/560,334 |
Filed: |
March 21, 1975 |
Current U.S.
Class: |
49/35; 404/6;
403/2 |
Current CPC
Class: |
E01F
13/085 (20130101); Y10T 403/11 (20150115) |
Current International
Class: |
E01F
13/00 (20060101); E01F 13/08 (20060101); E05B
065/00 () |
Field of
Search: |
;292/186 ;312/219
;49/39,33,35,131 ;404/6 ;52/98 ;403/2 ;70/181 ;256/13.1,1 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Gilliam; Paul R.
Assistant Examiner: Troutman; Doris L.
Attorney, Agent or Firm: Weaver; D. Paul
Claims
I claim:
1. A parking space barrier comprising a base adapted to be anchored
to a floor or to ground and having a pair of spaced upright
elements, a cross pin secured to and extending between said
elements near their upper ends, opposing shear pins removably
mounted on said elements near their lower ends and below said cross
pin and projecting interiorly of said elements, a barrier post
engaged between said upright elements and having bottom end opening
slots in opposite sides thereof engaging over the shear pins
removably and having vertically elongated closed end slots in the
same opposite sides thereof above the first-named slots and
slidably and pivotally receiving said cross pin, a key lock on said
post near the top thereof including a rotary crank arm within the
post, and a link connected with said crank arm and moved thereby
and extending through the post and having a lower end loop
receiving said cross pin with sufficient play between the loop and
cross pin to allow the loop to be lowered by turning of the crank
arm to release the post for lifting relative to the cross pin
sufficiently to separate said shear pins from said first-named
slots.
2. A parking space barrier as defined by claim 1, and wherein the
shear pins have screw-threaded engagement with said upright
elements to allow separation of shear pin shanks from said elements
and replacement of the shear pins following failure thereof.
3. A parking space barrier as defined by claim 1, and said lower
end loop of said link being elongated axially of the link and
slidably and pivotally receiving said cross pin.
4. A parking space barrier as defined by claim 3, and said bottom
end opening slots being downwardly flared and the upper portions of
the slots slidably and pivotally engaging said shear pins.
5. A parking space barrier as defined by claim 1, and said base
including a flat base plate adapted to rest on a floor, said
upright elements comprising spaced parallel plate elements, said
barrier post being rectangular in cross section and one opposing
pair of sides of said post fitting between said plate elements.
Description
BACKGROUND OF THE INVENTION
The prior patented art contains a number of teachings pertaining to
parking space barriers including locking and release means to be
controlled exclusively by an authorized user of the space and to
preclude use by unauthorized users. Some examples of the prior art
are U.S. Pat. Nos. 3,417,508 and 3,688,439 and British Patent
specification 967,322.
In order for devices of this character to be widely accepted, they
must be completely practical, easy to operate, highly resistant to
damage and, above all, economical to manufacture and install. If
all of these qualities are not present in the device, it will not
be economically feasible to use the device on a large scale or
commercial basis, and this is thought to be the reason why such
barrier devices up to the present time are not in wider usage.
Accordingly, it is the objective of the invention to provide a
parking space barrier of the described type which is completely
practical, easy to use, resistant to damage and very economical to
manufacture and install.
More particularly, the device is characterized by extreme
simplicity of construction, employing a minimum number of parts,
and the parts being of an inexpensive nature. Additionally, the
device is equipped with a fail-safe feature in the form of shear
pin means which will yield or fail when the barrier post is struck
by a vehicle, thus preventing damage to the vehicle or to the
device. The shear pin elements are readily replaceable following
failure so that the device may be reused indefinitely.
Other features and advantages of the invention will become apparent
during the course of the following description.
BRIEF DESCRIPTION OF THE DRAWING FIGURES
FIG. 1 is a perspective view of a parking space barrier device in
the upright active position to prevent entry of the vehicle into
the space.
FIG. 2 is a perspective view, partly broken away, showing the
device in a lowered or inactive position to allow free entry or
egress of the vehicle. FIG. 3 is an enlarged vertical section taken
on line 3--3 of FIG. 1.
FIG. 4 is a similar section taken on line 4--4 of FIG. 2.
FIG. 5 is a vertical section taken on line 5--5 of FIG. 3.
DETAILED DESCRIPTION
Referring to the drawings in detail, wherein like numerals
designate like parts, the numeral 10 designates a flat base plate
having a depending vertical pipe extension 11 rigidly secured
thereto and adapted to be anchored in a concrete mass 12 which may
be part of a garage floor or a separately formed concrete mass in
an unpaved parking lot or the like. The anchoring pipe 11
preferably has cross rods 13 extending into the concrete mass for
additional security.
The base plate 10 carries a pair of spaced parallel upstanding
bracket plates 14 rigid therewith, and these bracket plates are
interconnected near their tops and centrally by a sturdy cross pin
15 fixedly secured thereto. Below the cross pin 15 and in vertical
alignment therewith, a pair of inwardly projecting shear pins 16
are mounted on the bracket plates 14 so as to projecting inwardly
thereof near and above the base plate 10. The shear pins have
screw-threaded shanks 17 engaging within screw-threaded openings of
the bracket plates 14 and also have exterior heads 18 adapted to
receive an Allen wrench or the like for removal of the shanks 17
following failure of the shear pins.
A barrier post 19 of rectangular or other cross section is provided
and is preferably of a height to extend above the bumper level of
automobiles. This post is provided near and above its bottom end
and on opposite sides with vertically elongated slots 20, slidably
and pivotally receiving the fixed cross pin 15 so as to form a lost
motion connection between the post and the fixed base of the
barrier device.
At the extreme bottom of the post 19, below the slots 20 and
aligned therewith on the same opposite sides of the post, are
downwardly opening slots 21 having flared lower end portions 22.
The slots 21 are adapted to engage over the two fixed shear pins 16
to releasably lock the post 19 in the active upright position.
A simplified locking and release means for the barrier post is
provided, in the form of a key lock 23 near the top of the post on
one side thereof. The rotary component of this key lock carries a
rotary crank arm 24, concealed within the interior of the post, and
this arm is connected with the top of a rod 25 having a preferably
elongated closed loop 26 at the lower end thereof slidably
receiving the fixed cross pin 15.
During use, while the post 19 is upright with its lower end resting
on the flat base plate 10 and the shear pin 16 projecting through
the slots 21, the key lock is turned so that the crank arm 24 is
elevated, FIG. 3, and the rod 25 and loop 26 are elevated. At this
time, the bottom of the loop 26 engages the bottom of the cross pin
15 and the post 19 cannot be elevated or pivoted relative to the
pin 15. It is locked in the active barrier forming position.
To lower the post, as indicated in FIGS. 2 and 4, so as to allow a
vehicle to pass freely thereover, the key lock is turned to move
the crank arm 24 one-quarter turn to a downward position parallel
to the axis of the post, FIG. 2. This will lower the rod 25 and
loop 26 within the post and relative to the pin 15 so that the
bottom of the loop 26 is sufficiently spaced from the pin to enable
lifting of the post 19 sufficiently to separate the slots 21 from
the shear pins 16 and allow the post to be swung to its down
position shown in the drawings. The slots 20 allow the required
lifting movement along the axis of the post to separate the shear
pins from the slots 21.
Should a vehicle strike the post 19 while it is locked in the
upright position, before any damage can occur to the vehicle or the
invention, the relatively small pins 16 will shear and the
remaining shanks 17 can be removed by use of an Allen wrench, so
that new shear pins can be installed.
The device is most simplified, very easy to operate,
self-protecting against damage and very economical to manufacture,
which should make the device entirely practical to use.
It is to be understood that the form of the invention herewith
shown and described is to be taken as a preferred example of the
same, and that various changes in the shape, size and arrangement
of parts may be resorted to, without departing from the spirit of
the invention or scope of the subjoined claims.
* * * * *