U.S. patent number 3,830,024 [Application Number 05/288,930] was granted by the patent office on 1974-08-20 for stabilizing and anchoring device for mobile homes and similar structures.
This patent grant is currently assigned to Warn-Key, Inc.. Invention is credited to George E. Warnke.
United States Patent |
3,830,024 |
Warnke |
August 20, 1974 |
STABILIZING AND ANCHORING DEVICE FOR MOBILE HOMES AND SIMILAR
STRUCTURES
Abstract
A stabilizing and anchoring device for mobile and modular homes
and similar structures in which a base is secured to a supporting
member and supports an upstanding member having an extensible and
retractable member, such as a threaded shaft, in the upper end with
a fixture for connection to a structural member in the home or
similar structure. The fixture firmly clamps the structural member
so that when the device has been installed, the stabilizing portion
thereof holds the mobile home or similar structure firmly in place.
An anchoring means is connected to the base and is adapted to
receive the end of a tie-down strap or cable which passes over and
around the top of the structure, thus providing a firm support
beneath the structure and an anchored tie-down system so that the
structure will withstand high winds and gales.
Inventors: |
Warnke; George E. (Niles,
MI) |
Assignee: |
Warn-Key, Inc. (Niles,
MI)
|
Family
ID: |
23109271 |
Appl.
No.: |
05/288,930 |
Filed: |
September 14, 1972 |
Current U.S.
Class: |
52/23; 52/126.7;
52/146; 52/DIG.11; 52/143 |
Current CPC
Class: |
E04B
1/34347 (20130101); Y10S 52/11 (20130101) |
Current International
Class: |
E04B
1/343 (20060101); E04h 009/14 () |
Field of
Search: |
;52/23,122,146,143,126,263,148 ;248/361A,354S |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Faw, Jr.; Price C.
Attorney, Agent or Firm: Hobbs & Green
Claims
I claim:
1. A stabilizing and anchoring device for mobile and modular homes
and similar units having floor support members, comprising a base
for connection to a support, an upstanding member joined rigidly to
said base, an anchoring fixture rigidly connected to said base in
close proximity to said upstanding member for receiving the end of
a tie-down cable or strap for the mobile or modular home or similar
unit, said base, upstanding member and said fixture forming a
unitary structure, a vertically movable and extensible member
supported by said upstanding member, a fixture for connecting and
firmly holding the upper end of said extensible member to a floor
support member, and a means for extending and retracting said
extensible member to level the unit and simultaneously tighten the
cable or strap.
2. A stabilizing and anchoring device as defined in claim 1 in
which said anchoring fixture consists of two upstanding members
rigidly joined to said base and a cross bolt for receiving the end
of the cable or strap.
3. A stabilizing and anchoring device as defined in claim 1 in
which said upstanding member consists of a hollow cylinder and a
plate at the upper end with a threaded hole therein, and said
extensible member consists of a threaded shaft disposed in said
threaded hole.
4. A stabilizing and anchoring device as defined in claim 1 in
which said fixture for connecting and firmly holding the upper end
of said extensible member to a floor support includes a plate for
engaging the bottom of the floor support member and a plate and
bolt therethrough for clamping the floor member to said fixture
plate.
5. A stabilizing and anchoring device as defined in claim 1 in
which said base consists of a plate secured to the bottom of said
upstanding member and having holes therein for receiving studs or
bolts for securing the plate to a support.
Description
Mobile and modular homes, trailers, campers and similar structures
are usually not placed on and secured to a permanent foundation,
but are left on their undercarriages and sometimes placed on
concrete blocks or stablizing jacks. If the mobile homes or other
similar structures are not anchored, they may be blown from their
supports into other mobile homes or trailers in the adjacent area,
causing not only serious damage to the particular structure but
also extensive damage to other structures which may have been
struck by the mobile home and which may have been protected by
anchors. Various types of anchors and stabilizing devices have been
used in the past, including guy wires or straps connected to ground
fixtures, either permanently or temporarily inserted in the ground,
using the earth to form the required holding action and weight to
retain the vehicular structure and hold it in place during times of
high winds. It is often desirable to use temporary or removable
ground anchors; however, the larger mobile and modular homes often
are mounted on relatively permanent supports, and the guy wires or
straps are attached to suitable anchors buried in the ground. Those
ground fixtures must be inserted deeply into the ground to be
effective; however, occasionally poor ground conditions prevent the
fixtures from being seated or inserted firmly in the ground, and
hence the fixtures do not securely hold the structure in place
during storms. While these straps or guy wires are often provided
with means for tightening them, they nevertheless become loose as a
result of the poor ground conditions for the anchor and through
constant tugging by the force of the wind on the structure.
Further, the guy wires or straps themselves may cause the structure
to be somewhat distorted and out of balance, since several of these
are normally used along the mobile home and may not be tightened
uniformly from one strap or guy wire to another. In addition, the
ground surface conditions may be such that there is a tendency for
the mobile home supports to settle in one place more than at
another, thus loosening the guy wires and further causing the
structure to be off level or even partially unsupported and not
effectively anchored. It is therefore one of the primary objects of
the present invention to provide a combination stabilizing and
anchoring device which gives both firm support to the mobile or
modular home or other structure and provides an effective anchoring
system for securely holding the structure on its supports.
Another object of the invention is to provide a combination
stabilizer and supporting structure which permits effective
adjustment of the attitude of the structure as well as the
anchoring straps along the sides of the structure, and which
permits the adjustment to be made from time to time as settling of
the ground or changes in the condition of the structure occur.
A further object of the invention is to provide a stabilizing
device which gives both an effective support to a mobile or modular
home or similar structure, and at the same time effectively retains
the mobile or modular home or structure in place with or without
straps or guy wires extending over the structure, and which is
adaptable to various types and makes of structures without any
substantial changes being required in the device.
Still another object of the invention is to provide a stabilizing
and anchoring device of the aforesaid type which is relatively
simple in construction and operation and can be installed on a
prepared base and readily attached to a mobile or modular home or
similar structure to firmly anchor the structure in place, and
which does not detract from the appearance of the structure, while
providing the required safety and reliability to protect the
structure during severe weather conditions.
Additional objects and advantages of the present invention will
become apparent from the following description and accompanying
drawings wherein:
FIG. 1 is a perspective view of a mobile home supported and
anchored by a plurality of the stabilizing and anchoring
devices;
FIG. 2 is an enlarged perspective view of the stabilizing and
anchoring device, showing the manner in which it is attached to a
mobile or modular home or similar structure;
FIG. 3 is an end view of the mobile home illustrated in FIG. 1,
showing in greater detail the manner in which the home is supported
and anchored;
FIG. 4 is an elevational view of the stabilizing and anchoring
device shown in the preceding figures; and
FIG. 5 is a vertical cross-sectional view of the stabilizing and
anchoring device shown in the preceding figures, the section being
taken on line 5--5 of FIG. 4.
Referring more specifically to the drawings and to FIG. 1 in
particular, numeral 10 designates a mobile home, which for the
purpose of the present description may be considered conventional
and which includes a roof 12, opposite sides 14 with windows 16,
front and rear ends, and a tongue or draw bar 18 for connecting the
mobile home to a tractive vehicle such as a truck or automobile.
The mobile home when it is initially made is mounted on an
undercarriage which has been removed in the illustration in FIG. 1,
the undercarriage normally including tandem wheels. The basic frame
of most mobile homes includes a pair of steel sills, such as I-beam
20, extending longitudinally along the under side of the structure
and being spaced inwardly from the respective sides thereof.
Numeral 30 designates the present combination stabilizing and
anchoring device mounted on and secured to concrete pillars 32,
seven of which are disposed along each side of the mobile home.
Instead of pillars being used as the base for the stabilizing and
anchoring device, a concrete slab or runner along which the wheels
of the mobile home travel when the home is being moved into its
resting place may be the base for the device. While seven
stabilizing and anchoring devices are shown along each side of the
mobile home, fewer, such as two near each end, may be used in the
installation.
The stabilizing and anchoring device as illustrated in the drawings
consists of a hollow metal cylinder 40 secured to a base plate 42
which in turn is secured to the concrete pillars by studs 44
imbedded in the pillars and having an upper threaded end onto which
nuts 46 are threaded and tightened into place against the upper
surface of the base plate. The cylinder preferably is secured to
the base plate by welding so that together they form a unitary
structure. Mounted in the upper end of the hollow cylinder is a cap
48 which is secured to the upper end of the cylinder by welding or
other suitable securing means, and which has a threaded hole 50
therethrough for receiving a threaded shaft 52. The cap is provided
with a downwardly facing shoulder 54 which seats on the upper end
of the cylinder. The threaded shaft is adjusted longitudinally in
the cylinder by rotating it in the cap, using, if necessary, a rod
or other suitable tool in a transverse hole 56 in the upper end of
the shaft.
A fixture 60 is mounted on the upper end of the shaft and consists
of a bottom plate 62 having a center hole 64 therein for receiving
a reduced diameter portion 66 of the shaft 52 with a flange 68
thereon for retaining bottom plate 62 on the upper end of shaft 52.
In order to secure the plate to the lower flanges of the I-beam,
plates 69 and 70 are seated over the flanges and are bolted to
plate 62 by bolts 72 and 74, respectively. When the base plate 42
is bolted to pillar 32 and fixture 60 is clamped to the flanges of
the I-beam, the stabilizing portion of the device not only supports
the mobile home but will hold the mobile home down against a
substantial wind force without any additional assistance from the
anchoring portion of the device. The proper leveling of the mobile
home can be obtained by rotating shaft 52 upwardly or downwardly in
cap 48 to raise or lower fixture 60 and hence raise or lower the
I-beam.
In order to give additional protection from high winds, a strap 80
is preferably placed over the mobile home either externally or
internally of the siding and roofing material. In the embodiment
illustrated in the drawings the straps are placed under the siding
and roofing material, thus concealing the straps except beneath the
mobile home. The lower end of the strap on each side is anchored or
connected to the stabilizing portion of the device by a fixture 82
consisting of two upstanding steel members 83 and 84 rigidly joined
to the base plate, and by a bolt 86 extending through aligned holes
in the two upstanding members. The strap is looped around the bolt
and riveted or clamped, as shown at numerals 88 and 90, although
preferably an adjustment means is provided in the strap which
permits the strap to be shortened in order to assist in tightening
the strap firmly to hold the mobile home firmly in place. However,
the tightening may be accomplished by elevating the mobile home by
screwing shaft 52 vertically upwardly from cylinder 40.
In the use of the stabilizing and anchoring device in the preferred
manner, pillars 32 are placed in the ground where the sides of the
mobile home are or will be placed, and the mobile home is then
positioned over the pillars. The stabilizing portion of the device
is bolted or otherwise secured to the concrete pillars and the
shafts 52 of four or six or more stabilizers are adjusted to abut
plate 62 against the under side of the longitudinal floor sills.
After the mobile home has been leveled by properly adjusting the
height of shafts 52 in the cylinders, plates 69 and 70 are clamped
on the flanges of the I-beam, thereby forming a firm connection
between the pillars and the bottom of the mobile home. This
installation will effectively protect the mobile home against
moderately high winds, and the stabilizers along either side can be
adjusted if required from time to time to maintain the mobile home
in a level condition.
To give maximum protection, the straps, which may be in place under
the siding and roofing of the mobile home, are connected at
opposite ends to fixture 82 by forming a loop at the end of the
strap and inserting bolt 86 therethrough. The strap preferably
contains an adjustment means to vary the length so that it can be
tightened firmly to hold the upper portion of the mobile home
structure firmly in place. However, tension can be applied to the
straps by adjusting all of the shafts of the stabilizers upwardly
after the straps have been connected to the fixtures.
It is seen that the present stabilizing and anchoring device can be
used as a stabilizing device by attaching fixture 60 to the floor
structure, or it can be used as an anchoring device by attaching
the straps to fixtures 82 on opposite sides of the mobile home.
However, for any installation which is intended to remain in place
for a substantial period of time, both the stabilizing and
anchoring portions are used. The anchoring system can be used with
permanently installed straps as shown in FIG. 1 in the drawings, or
it may be used with straps placed externally over the sides and
top. In place of straps, cables or wires may be used in very much
the same manner as the straps. Further, the device may be secured
to concrete runners on either side or to a concrete slab on which
the mobile home is placed, instead of being attached to pillars
such as illustrated in the drawings.
While only one embodiment of the present stabilizing and anchoring
device has been described in detail herein, various changes and
modifications may be made without departing from the scope of the
invention.
* * * * *