U.S. patent number 3,750,349 [Application Number 05/253,231] was granted by the patent office on 1973-08-07 for stabilizer for mobile homes.
Invention is credited to Robert F. Deike.
United States Patent |
3,750,349 |
Deike |
August 7, 1973 |
STABILIZER FOR MOBILE HOMES
Abstract
A stabilizer and support for mobile homes, trailers, building
constructions and the like effective to resist wind, vibration,
unequal weight distributions, and settling. The stabilizers have a
combined supporting and tie-down capacity and cooperate on opposite
sides of the trailer or building structure so that a tension
applying load on one side will result in a compression load on the
other side. Angular distribution stresses are also provided so that
a force in any direction will be resisted by balancing
counter-forces. The devices of this invention include anchors
driven in the ground, compaction plates resting on the ground and
secured to the anchors, telescoped struts supported by the
compaction plates and supporting the underframing of the building
structure to a predetermined load setting and tensioned cables
diverging from the compaction plates to the frame structure
together with tie-down cables or straps anchored to the post
carried structure. The struts will shorten or lengthen when the
loads thereon exceed the predetermined setting and resist impact
loads in the manner of shock absorbers.
Inventors: |
Deike; Robert F. (Cheyenne,
WY) |
Family
ID: |
22959400 |
Appl.
No.: |
05/253,231 |
Filed: |
May 15, 1972 |
Current U.S.
Class: |
52/23; 52/292;
52/DIG.11; 248/354.3 |
Current CPC
Class: |
B60P
3/32 (20130101); Y10S 52/11 (20130101) |
Current International
Class: |
B60P
3/32 (20060101); F16f 011/00 () |
Field of
Search: |
;52/4,23,146,148,149,155,292 ;248/354S,354H |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Murtagh; John E.
Claims
I claim as my invention:
1. A stabilizer for a mobile home or similar structure which
comprises a ground anchor adapted to be secured in the ground, a
base member adapted to rest on the ground and secured to the upper
end of the ground anchor, telescoped strut means supported on the
base member and extending therefrom into supporting relation with
the mobile home, means holding the strut means in extended relation
under a predetermined maximum load but accommodating shortening and
lengthening of the strut means under excess loads, and tension
cable means extending upwardly from the base member to pull the
mobile home downwardly whereby loads applied to the base member
from the strut means tending to depress the base member into the
ground are resisted by the tension cable means and loads tending to
raise the base member are resisted by the ground anchor.
2. A stabilizer and ground anchor for cooperating with foundations
of building constructions to resist movement of the constructions
on the foundations which comprises a pile member adapted to be
driven in the ground, a compaction base mounted on the upper end of
the pile member adapted to rest on the ground, extensible strut
means supported on the compaction base and supporting a building
construction outwardly from its foundation, tension cables
extending upwardly and outwardly from the compaction base anchored
to the building construction, and means adjusting the struts to
yield under excess tension or compression loads.
3. An anchor and stabilizer system for building constructions
resting on foundations which comprises a pair of anchor devices
driven in the ground on opposite sides of the building construction
outwardly from the foundations, compaction base members secured on
the upper ends of the anchors adapted to rest on the ground,
extensible struts supported on the compaction bases and supporting
the building construction outwardly from the foundations, means
adjusting the extensible struts to elongate or shorten when
subjected to loads exceeding a predetermined setting, a tie-down
cable extending over the roof of the building construction and
anchored at its ends to the anchor devices on opposite sides of the
building construction, and pairs of upwardly inclined diverging
tension cables extending from each compaction base into anchored
relation with the building construction, said pairs of cables
coacting with the struts to hold the compaction bases on the ground
and said pile members preventing shifting of the compaction bases
on the ground whereby the tie-down cable will anchor the building
construction to the ground, the struts will cooperate with the
foundation means to stabilize the supporting of the construction on
the ground and the pairs of tension cables will coact with the
struts to prevent the compaction bases from sinking in the
ground.
4. A device for tying down a building construction on its
foundation which comprises base members, means for anchoring the
base members on the ground laterally outward from the foundation of
the building construction to be tied down, extensible means mounted
on the base members acting against the building construction to
cooperate with the foundation for supporting the construction,
means for preloading said extensible means to support a
predetermined load, cable means diverging inwardly and
longitudinally outward from the base means into anchored relation
with the bottom of the building construction and a tie-down cable
means anchored to the base means acting on the top portion of the
building construction to pull the construction downwardly on its
foundation.
5. The stabilizer of claim 1 wherein the mobile home or similar
structure has a longitudinal frame with outrigger frames projecting
laterally outward therefrom, the tension cable means are anchored
to the longitudinal frame and the strut means are anchored to the
outer ends of the outrigger frames.
6. The stabilizer of claim 5 wherein a beam spans adjacent
outrigger frames and the strut means are attached to the beam.
7. The stabilizer of claim 1 wherein the strut means comprise a
pair of struts each having telescoped tubes respectively anchored
to the base member and the mobile home.
8. The stabilizer of claim 1 wherein the base member mounts a
sleeve and the ground anchor slides through this sleeve and is
secured thereto at a desired level.
9. The stabilizer of claim 2 including a tie-down cable secured to
the pile member and acting on the upper portion of the building
construction to pull the construction down on its foundation.
10. The stabilizer of claim 2 wherein the compaction base is a pair
of angle plates having vertical flanges in spaced relation and base
horizontal flanges extending outwardly therefrom and the pile
member and strut means extend between the vertical flanges and are
anchored thereto.
11. The stabilizer of claim 2 wherein the base member is a flat
plate resting on the ground and the strut means is secured to the
top face of the base member.
12. The stabilizer of claim 3 wherein the compaction base members
have the anchor devices slidable therethrough and locked therewith
at a desired level.
13. The anchor device of claim 3 wherein the building construction
has laterally extending frames in spaced relation, a beam underlies
the outer ends of these frames and the extensible struts are
secured to the beams.
14. The stabilizer of claim 13 wherein the extensible struts
include a pair of struts diverging from the compaction base.
15. The stabilizer of claim 4 wherein the strut means has an outer
tube slidably receiving a slotted inner tube and a torque nut and
bolt assembly frictionally connects the inner tube to the outer
tube.
Description
SUMMARY OF THE INVENTION
This invention relates to the art of anchoring mobile homes,
lightweight building structures, trailers and the like to the
ground. Particularly the devices of this invention provide
stabilizing support and tie-down anchorage for mobile homes and
cooperate with each other so that a force causing tension on one
side of the mobile home will be offset by a compression resistance
to this force on the other side of the home. A triangular
distribution of forces is provided so that stresses applied from
any direction and to any portion of the mobile home will be
distributed and balanced to prevent damage to the underframing.
The term "mobile home" as used herein is intended to include any
structure to be either permanently or temporarily anchored to the
ground such as buildings, vehicles and trailers which may serve as
a home or for any other purpose.
The stabilizer devices of this invention include ground anchor
posts with extensible tentacles or tines, preferably of the type
shown in my U.S. Pat. No. 3,526,069, but it should be understood
that other types of ground anchors, such as auger or screw devices,
could be used. The posts are driven into the ground alongside of
the structure to be anchored and preferably in alignment with the
wheels, blocks or the like supports for the structure. The devices
are used in pairs on opposite sides of the trailer or mobile home
structure. Each post has a compaction plate resting on top of the
ground and anchored to the post. The compaction plates support
telescoped struts which in turn support the underframe of the
structure outwardly from the main structure support, such as the
wheels or foundation blocks. Cables anchored to the compaction
plates diverge from the plates to the main frame beams of the home
or vehicle so that their frame anchored ends are longitudinally
spaced apart a considerable distance on the main frame. A tie-down
cable or strap extends over the top of the vehicle or trailer and
has its ends anchored to the anchor post structures on opposite
sides of the home or vehicle. The struts are preferably attached
through a beam to the outboard ends of the conventional outrigger
frames of the vehicle while the diverging cables are connected to
the main longitudinal frames from which these outriggers
extend.
In one embodiment the struts diverge from the compaction plate to
the adjacent outriggers. In another embodiment, a single telescopic
strut extends from the compaction plate to a longitudinal beam
attached to the adjacent outriggers.
When the devices of this invention are in paired alignment on
opposite sides of the home or trailer structure, wind or other
forces tending to raise one side of the home or trailer will place
the struts on that side under tension while the struts on the
opposite side will be placed under compression. The telescoped
sections of the struts are frictionally held against relative
movement by torque clamps set to resist a predetermined load. When
this load is exceeded the struts will yield under the excess load
to prevent damage to the framing of the supported structure. The
predetermined setting for the struts is especially useful to
provide supplementary support for the mobile home at overloaded
outboard areas such as where a refrigerator, stove or the like
might be placed adjacent an outer wall.
The tensioned diverging cables extend inwardly under the home or
trailer frame and diverge longitudinally outward from the
compaction plates. This provides a triangular distribution of
tension forces from the compaction plates to the main frame of the
home or trailer and any force such as a wind force from any
direction on the sides or ends of the home or vehicle will always
be resisted by tensioned cables even though such a force may be in
a direction to loosen one of the cables of the pairs. The
arrangement is such that a plurality of the cables will always
remain under tension regardless of the direction of wind forces or
the like tending to unbalance the weight distribution of the home
or vehicle on its foundation supports.
It is then an object of this invention to provide a building
stabilizer and anchor which will resist wind vibration, unequal
weight distribution and settling to maintain the anchored and
supported structure in a stabilized condition without permitting
the structure to be damaged on application of highly unstabilized
forces.
Another object of the invention is to provide a ground anchor for
mobile homes and the like which is easily installed and also
affords stabilizing support to the structure.
Another object of the invention is to provide a combined mobile
home stabilizing support and anchor.
A further object of the invention is to provide an anchor for
mobile homes, trailers and the like which provides supplemental
support for the home or trailer while tying the same to the
ground.
A specific object of the invention is to provide a combined
stabilizer and tie-down device for mobile homes, trailers, and the
like cooperating with the foundation or wheels of the homes or
trailers to afford shock absorbing supplemental support as well as
load distribution preventing damage in the event of highly unstable
forces applied to the body of the home or trailer.
A specific object of the invention is to provide mobile home
stabilizers and ground anchors which are easily driven into the
ground and cooperate with each other on opposite sides of the
mobile home to balance tension loads with compression loads.
Other and further objects of this invention will become apparent to
those skilled in this art from the following detailed description
of the annexed sheets of drawings which, by way of preferred
embodiments, illustrate several modifications of the devices of
this invention.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a schematic isometric view of a mobile home equipped with
the stabilizer anchors of this invention;
FIG. 2 is an end elevational view of the home and anchor structures
of FIG. 1;
FIG. 3 is an enlarged isometric view from underneath the portion of
the home of FIG. 1 showing further details of the stabilizer
anchor;
FIG. 4 is an isometric view with parts broken away of the
stabilizer anchor shown in FIG. 3 and illustrating parts in further
detail;
FIG. 5 is an enlarged fragmentary elevational view showing the
manner in which the struts of the stabilizer anchor are mounted at
their lower ends;
FIG. 6 is a transverse sectional view along the line VI--VI of FIG.
3;
FIG. 7 is a cross-sectional view along the line VII--VII of FIG.
3;
FIG. 8 is an isometric view similar to FIG. 4 but showing a single
strut modification of the invention;
FIG. 9 is a fragmentary isometric view illustrating another
modification with a swingable compaction base or plate and swivel
mounting for the strut.
DESCRIPTION OF THE EMBODIMENTS ILLUSTRATED IN THE DRAWINGS
In FIGS. 1 and 2, the reference numerals 10 designate generally the
stabilizer anchors of this invention in operative positions for
stabilizing and anchoring a mobile home 11 on its foundations 12.
The mobile home 11 has conventional underframing including a pair
of longitudinal I-beams 13 extending the full length thereof under
the body 14 and spaced inwardly from the sides of the body. Lateral
beams or outriggers 15 extend from the main beams 15 to the outer
sides of the body 14 and cooperate with the beams 13 to form the
main frame support for the body 14.
The foundation supports 12 as illustrated include concrete slabs
12a resting on or partially embedded in the ground G and supporting
stacks of concrete blocks 12b receiving the main beams 13 on the
tops thereof. Four such foundations 12 are illustrated, but it
should be appreciated that six or any larger number could be used
for longer mobile homes. The foundations 12 are arranged in aligned
pairs and the devices 10 of this invention are positioned laterally
outward from and in alignment with these foundations. As better
shown in FIGS. 3 and 4, each stabilizer anchor 10 of this invention
includes a post or pile 16 driven into the ground G just outwardly
from the sides of the mobile home body 14 and in alignment with a
foundation 12. These posts or piles 16 are metal tubes, of square
configuration as illustrated, and have driving points 17 on their
leading ends. When the posts are driven into the ground to the
desired depth, tentacle rods 18 are forced outwardly therefrom by
impacting a head (not shown) in the post to extrude the rods, all
as more fully described and claimed in my U.S. Pat. No. 3,526,069.
It will be understood, however, that the posts 16 could be replaced
with other types of ground anchors. When the tentacle rods 18 are
extended as illustrated, the posts are firmly and fixedly secured
in the ground G and will resist forces tending to withdraw them
from the ground.
A compaction plate or base 19 is mounted on the upper end of each
post 16 and includes a pair of opposed metal angle plates 20 with
extensive horizontal base legs 20a and vertical legs 20b in spaced
opposed position. A sleeve 21 slidable on the post 16, as best
shown in FIG. 7, has holes 22 in the side faces thereof receiving
lugs 23 projecting from the vertical legs 20b of the plates 20.
These lugs 23 pivotally mount the compaction plate assembly 19 on
the sleeve 21.
A square tube 24 is also positioned between the vertical legs 20b
of the plates 20 and bolted thereto in an upright position by a
through bolt 25. The tube 24 projects above the legs 20b, but
terminates flush with the legs 20a. A second through bolt 26 draws
the free inner ends of the legs 20b toward each other to cooperate
with the bolt 25 to secure the two plates in fixed relation and
thereby also maintain the lugs 23 in the holes 22 of the sleeve
21.
The legs 20b have arcuate slots 27 therethrough above the lugs 23
and overlying the side faces of the sleeve 21. A through bolt 28
received through these slots 27 and through holes in the sleeve 24
and post 16 fixedly locks the compaction plate assembly 19 to the
post. The slots 27 permit a pivotal adjustment of the plate 19
relative to the post so that the plate may rest flat on the ground
in instances, for example, where the post is driven at an angle
into the ground. It is sometimes desirable to drive the post at a
slight inclined angle toward the foundations 12 giving freer access
for striking the end of the post in the event it is spaced close to
the sides of the mobile home.
The vertical legs 20b of the plates 20 have additional aligned
holes 29 therethrough to provide for adjustable mountings of the
tube 24 toward and away from the post 16.
Telescopic struts 30 are supported at their lower ends on the top
edge of the sleeve 24. Each of these struts 30 has a square metal
tube portion 31 slidably receiving a square channel member 32
through its upper end. The bottom of each square tube 31 is notched
at 33 as shown in FIG. 5 to receive the upper end edges of the tube
24. A draw bolt 34 extends through washers 34a with inclined faces
engaging the tubes, then through the lower outer ends of these
tubes 31 and through the side walls of the tube 24 to lock the
tubes 31 to the sleeve 24 in fixed relation.
As shown in FIG. 6, the channel tube 32 has an open slot 35 bounded
by inturned flanges 36. A slide nut 37 is grooved to receive the
inner ends of these edges 36 and a bolt 38 extends through the
outer face of the tube 31, through the channel slot 35 and is
threaded into the nut 37. Tightening of the bolt will clamp the
channel 32 to the tube 31. As shown in FIGS. 3 and 4, two bolts 38
are provided in the tubes 31 and each have a cooperating internal
nut 37. The degree of tightening of the bolts 38 will determine the
loads under which the struts 30 can lengthen or shorten.
The upper ends of the channels 32 are secured by angle brackets 39
to a wood beam 40 which in turn is secured to the outer ends of
adjacent outriggers 15 by means of brackets 41 or the like. The
brackets 39 are attached to the beam 40 at positions, adjacent the
outriggers 15 as shown, or at any position to give a desired
diverging angle of the struts 30 from their supporting sleeve 24.
The bridging beam 40 between adjacent outriggers 15 makes possible
a desired angular positioning of the struts regardless of the
distance between the outriggers and, of course, if desired, the
beam 40 could span three or more outriggers.
The inner end of the compaction plate 19 anchors a pair of cables
42. These cables can, if desired, be anchored to the through bolt
26 as shown or in any other manner. The cables 42 extend inwardly
from the compaction base 19 and also diverge outwardly from both
sides of the base to slotted brackets 43 with slots 44 receiving
the inner base flange of the adjacent I-beam main frame 13 of the
mobile home. A clamping screw 45 on the bracket 43 locks the
bracket to the I-beam flange. A turnbuckle 46 is provided in each
cable 42 to tighten the cable between the base 19 and the frame
13.
A tie down cable or strip 47 is draped over the top of the mobile
home 11 and has its ends anchored to the top ends of the post 16 of
each pair of anchors 10 by any suitable means such as a hook, bolt
or screw-in plug (not shown). A turnbuckle 48 is provided in the
cable 47 to tighten the tie down to the anchor posts 16.
As illustrated in FIG. 3, the top ends of the diverging struts 30
and the diverging cables 42 straddle the adjacent foundation 12.
The cables 42 are tightened and tend to draw the compaction base 19
upwardly toward this foundation 12, but of course such movement is
prevented by the anchor post 16. The struts 30 are extended to
afford any desired supplemental support for the mobile home and
thus cooperates with the adjacent foundation 12 to provide added
lateral support stability. The struts thus normally are under
compression loads tending to press the compaction base 19 into the
ground. This depressing force on the compaction base is offset by
the upward pull afforded by the cables 42. A balancing of downward
and upward forces results in a stabilized ground plate which, of
course, is anchored by the post 16.
Since, as shown in FIGS. 1 and 2, the devices 10 are paired on
opposite sides of the mobile home 11, any lifting force on one side
of the home tending to place the struts 30 in tension will be
offset by an added compression load on the struts of the opposite
device. Here again, a balancing of forces is developed.
The nuts 38 of the struts 30 are tightened just sufficiently so
that the struts will compress or elongate at a predetermined load.
In this manner, excessive loads on the struts will not damage the
underframing of the mobile home since the struts will give under
such loads. Settling of the foundations 12 will also be
accommodated by the struts so that they will not bear a full
supporting load. The struts in effect act as shock absorbers
resisting vibration, wind impacts and the like, but accommodating
movement under steady applied overloads.
The diverging cables 42 will distribute tension loads along
longitudinal spaced portions of the main frames 13 and at least one
cable of each pair of cables anchored to a compaction base will
always be under tension regardless of the direction of applied wind
forces or the like tending to tilt the mobile home. The tie-down
cables 47 also cooperate with these cables 42 to pull the home 11
down on its foundation.
If desired, the pair of diverging struts can be replaced with a
single upright strut as shown in the modification 10a of FIG. 8
where components corresponding with components described in FIGS. 1
to 7 have been marked with the same reference numerals.
In FIG. 8, a single vertical strut 50 has a square tube 51
telescoping and receiving a channel member 52 in the same manner as
the struts 30. However, the square tube 51 extends vertically
between the vertical legs 20b above the base 19 and is directly
bolted thereto by a bolt 53. Torsion bolts 54 are provided on the
strut portions 51 and 52 to hold them in predetermined elongated
position as described in connection with the struts 30. The upper
end of the channel member 52 is attached to the central portion of
the beam 40 by an angle bracket 55. Therefore, the single strut 50
acts vertically to function in the same manner as the struts 30,
but without the longitudinal stability provided by the inclined
struts 30.
Another vertical strut modification is shown in FIG. 9 where the
device 10b has a flat metal or wood compaction base 60. A
cylindrical tubular anchor post 61 slides through the base 60 and
is anchored thereto by a through bolt 62.
A swivel bracket 63 is bolted to the top face of the mid-portion of
the plate 60. This bracket 63 has a base 64 receiving a single bolt
through the center thereof so the bracket may be rotated relative
to the base. The bracket also has vertical side flanges 65 with
bolt apertures therethrough.
The vertical strut 50 has the bottom of the square tube portion 51
thereof resting on the bracket 63 between the vertical flanges 65
thereof and a single bolt 66 pivotally secures the bottom of the
tube to the bracket. A universal swivel joint connection with the
base 60 is thereby provided. The channel portion 52 of the strut 50
extends behind the beam 40 and is directly bolted to the back face
of the beam by bolts 67.
The base 60 can swing relative to the anchor post 61 and can be
adjustably positioned to locate the strut 50 relative to the beam
40. Since the bracket 63 can rotate on the plate 60, the strut may
be rotated and also tilted on its mounting bolt 66 to position it
as desired relative to the beam 40.
A second anchor 68 can also be provided for the base 60 and as
shown, the post of this anchor extends through a second opening on
the end of the plate 60 remote from the first post 61. The second
post is anchored to the plate in the same manner as the post 61 by
a bolt 62. As shown, both anchor posts 61 have the extruded
tentacle rods 18 described hereinabove. The device 10b operates in
the same manner as the device 10a.
From the above descriptions it will, therefore, be clear that this
invention provides stabilizers and tie-down units for mobile homes
and the like which cooperate with the foundations for the homes to
not only anchor the homes to the ground, but also to provide
supplemental support coacting with the main foundation support and
resisting the forces of wind, vibration, unequal weight
distribution and settling.
* * * * *