Information
-
Patent Grant
-
6550577
-
Patent Number
6,550,577
-
Date Filed
Wednesday, November 21, 200122 years ago
-
Date Issued
Tuesday, April 22, 200321 years ago
-
Inventors
-
-
Examiners
- Stodola; Daniel P.
- Thompson; Hugh B.
Agents
- Jones, Waldo, Holbrook & McDonough
- Starkweather; Michael W.
-
CPC
-
US Classifications
Field of Search
US
- 182 107
- 182 121
- 182 214
- 182 129
- 182 230
- 182 206
- 182 229
- 182 116
- 182 93
- 248 210
- 248 211
- 248 23191
- 248 238
- 248 500
-
International Classifications
-
Abstract
A safety device, for securing a ladder to more than one structure type. The device includes a base, having one or more connection holes, designed to secure the safety device to a first structure type through the connection holes. The device also includes a securing section, coupled to the base section, designed to secure the safety device to a second structure type. The device may optionally include a support, removably coupled to the base, designed to engage a front edge of a gutter, to prevent structural damage to the gutter when the ladder rests on the gutter. The device may also include a removable bracket portion, having one or more bracket connection holes, perpendicularly oriented to, and coupled to, the base, and designed to secure the safety device to a third structure type, through the bracket connection holes, when the support engages the front edge of the gutter.
Description
BACKGROUND
In commercial construction, as well as in home improvement, ladders are frequently used to scale structures such as buildings. Repeated upward, downward and lateral movement of users may, at times, cause the ladder to slip or move. Such movement could potentially damage the structure or nearby property. More importantly, this sort of movement could cause the user to fall, resulting in serious injury. A device for securing a ladder, thereby preventing its movement, may therefore be desirable.
In securing a ladder, it is also important that the securing device be adaptable to a wide range of structures. For example, in some circumstances, it is preferable to fasten the securing device to the structure with a screw or nut and bolt assembly. However, in some circumstances, less invasive means of securing would be preferred. A device for securing a ladder that is adaptable to a wide range of structures, may therefore be desirable.
Another important consideration when using a ladder is the impact of the ladder on the structure. For example, when the structure being scaled is a building having rain-insulation devices, such as flashing drip-edges and gutters, these features can be significantly damaged by the placement of the ladder thereupon. A device that may minimize the impact of the ladder on the structure would therefore be desirable.
A number of prior patents disclose devices for securing ladders either to the ground, or to a nearby structure, thus preventing movement during use. Examples of these patents, each of which is incorporated by reference for its supporting teachings, are as follows:
U.S. Pat. No. 5,012,895 to Santos discloses adjustable extensions for enhancing the safety of a ladder. These extensions can be attached to the bottom ends of the side rails of the ladder so as effectively to adjust the lengths of such rails so that the ladder will not lean to either side, regardless of any difference in heights of the ground or support areas under such rails. Also, coupling cables couple the ladder to the wall of the building against which the ladder leans. The coupling cables connect the midpart of the ladder to a horizontal wall cable which is attached along and parallel to the wall of the building. The top of the ladder is stabilized against rolling to either the left or right and so that it can be positioned stably against irregular supports, such as windows, eaves, pitched roofs, pipes, etc., by means of stabilizing bars connected to its top and suitably shaped to mate with the irregular supports, and by extension arms which project out from the top of the ladder. Hand holds are attached to the extension arms.
U.S. Design Patent No. Des. 307,384 discloses an ornamental design for a ladder hook.
U.S. Pat. No. 4,765,439 to Kresmery discloses a device for retaining the upper end of a ladder to a building parapet wall or the like to securely, temporarily hold the ladder. The device is provided with a frame which is temporarily attached to the ladder and projects outwardly therefrom to extend over the building parapet wall. A clamp is attachable to the frame in various positions to entrap the parapet wall between the clamp and the ladder preventing a relative movement thereof.
U.S. Pat. No. 4,678,061 to Jordan, et al. discloses a ladder roof brace which includes adjustable means of engaging the rungs of a ladder, means of bearing against both sides of a roof over a ridge and means of engaging a gutter.
U.S. Pat. No. 2,685,957 to Schlesinger discloses a conveyor assembly for converting a ladder having side rails and rungs into a conveyor frame, a bucket guide, brackets and spring strips.
U.S. Pat. No. 1,252,224 to Bittner discloses a ladder support having a shank provided at its ends with oppositely disposed hooks which lie at the opposite sides of the shank, a clip adjustably mounted on the shank, means for securing the clip and a prong mounted on one end portion of the shank.
While the foregoing patents disclose improvements in the area of ladder safety, none of these patents disclose a ladder securing device that prevents movement of the ladder, which is also adaptable to a wide range of structures and minimizes the impact of the ladder on the structure.
SUMMARY OF THE ILLUSTRATED EMBODIMENT OF THE INVENTION
There is therefore provided a safety device, for securing a ladder to more than one structure type. The device includes a base, having one or more connection holes, designed to secure the safety device to a first structure type through the connection holes. The device also includes a securing section, coupled to the base section, designed to secure the safety device to a second structure type.
The device may optionally include a support, removably coupled to the base, designed to engage a front edge of a gutter, to prevent structural damage to the gutter when the ladder rests on the gutter. The device may also include a removable bracket portion, having one or more bracket connection holes, perpendicularly oriented to, and coupled to, the base, and designed to secure the safety device to a third structure type, through the bracket connection holes, when the support engages the front edge of the gutter.
A method of securing a ladder to a structure is also provided. In this method a securing device is provided. The securing device has a base, having one or more connection holes thereon, designed to secure the device to a first structure type; a hooking section, coupled to the base, designed to secure the device to a second structure type; and a buckle, rotatably coupled to the base.
It is determined whether the structure is the first or second structure type, and if the structure is the first structure type, the base is attached thereto. Alternatively, if the structure is the second structure type, the hooking section is attached thereto. A strap is coupled between the buckle and a ladder rung. Thus, the ladder is secured to the structure.
BRIEF DESCRIPTION OF THE DRAWINGS
The present invention will be understood more fully from the detailed description given below and from the accompanying drawings of the preferred embodiment of the invention, which, however, should not be taken to limit to the invention, but are for explanation and understanding only.
FIG. 1
is an oblique elevational perspective view of an embodiment of a ladder securing device according to the present invention.
FIG. 2
is a side view of the ladder securing device in FIG.
1
.
FIG. 3
is a side view of the ladder securing device in
FIG. 1
illustrating its operation.
FIG. 4
is a side view of an embodiment of a ladder securing device.
FIG. 5
is a front view of a ladder securing device according to the present invention.
FIG. 6
is a side view of the ladder securing device secured to a structure having a hookable edge.
DETAILED DESCRIPTION OF THE ILLUSTRATED EMBODIMENT(S)
Referring generally to
FIGS. 1-3
, there is shown a safety device
10
for securing a ladder to a structure
52
; Generally, the device
10
includes a base
11
. Coupled to the base
11
through common connection holes
25
(
a
)-(
c
) are support section
14
and bracket portion
16
. Also coupled to the base
11
is a securing section
12
and a buckle
20
.
The base
11
, securing section
12
, and bracket
16
are each designed to secure a ladder
45
(
FIG. 3
) to a structure
52
(
FIG. 3
) under at least three sets of circumstances. Specifically, the bracket
16
is well suited for securing a ladder
45
to a structure having rain gutters
37
. The base
11
can be used to secure a ladder
45
to a structure
52
having water insulating materials
40
, such as flashing. The securing section
12
is well suited to secure a ladder
45
to a structure
52
having a hookable edge
52
(
a
) (FIG.
6
), and where it may be desirable to avoid screwing or nailing the device
10
to the structure
52
.
With respect to the base
11
, as depicted in
FIG. 4
, the base
11
can be inserted underneath water insulating material such as flashing
40
. Through the connection holes
25
, one or more connectors
50
fastens the base
11
to the structure
52
. The device
10
is fastened by screws
50
driven through the flashing
40
, through the connection holes
25
, and into an underlying wood support
53
.
Once the device
10
is secured to the structure
52
, a strap
48
, coupled to the buckle
20
, may then be attached to a rung
47
on a ladder
45
(FIG.
3
). It is noted that, rather than creating new holes in the water insulating materials (e.g. the metal flashing
40
), the existing holes, already securing these materials to the structure
52
, can be utilized. In this manner, the ladder
45
can be secured to the structure
52
without significantly damaging the water insulating materials
40
. Moreover, the base
11
can include multiple connection holes
25
, thus better accommodating potentially diverse locations of existing holes in the water insulation
40
.
As can also be seen in
FIG. 4
, the drip edge
42
of the flashing
40
may be tucked in the space
43
between the base
11
and the securing section
12
. This configuration provides the added advantage of protecting the drip edge
42
from structural damage caused by a ladder
45
resting against it. The width of the space
43
can be adjusted to accommodate drip edges
42
of various sizes.
It is noted that while
FIG. 4
shows the present invention being utilized with a wood
53
and concrete
55
structure, the device
10
can be used with numerous structure types of various materials, including all concrete or all wood structures. It would be apparent to one skilled in the art that depending on the structure material, different types of connectors
50
would need to be used. For example, for an all concrete structure, concrete screws would be used.
In the embodiment shown in
FIGS. 1-6
, the securing section
12
is substantially hook shaped. This configuration allows the securing section
12
to engage a structure
52
by “hooking” it. For example, in
FIG. 6
is shown a second type of structure
52
having a hookable edge
52
(
a
). The securing section
12
closely engages the edge
52
(
a
), thereby securing the device
10
to the structure
52
.
Once the device
10
is secured to the structure
52
, a strap
48
may then be coupled between the buckle
20
and a ladder rung
47
, thereby securing the ladder
45
to the structure
52
.
As seen in
FIG. 3
, a support
14
can also be removably coupled to the base
11
. The support
14
is designed to engage a front edge
38
of a rain gutter
37
, to prevent structural damage to the gutter
37
when the ladder
45
rests on the gutter
37
. The support
14
can be coupled to the base
11
through a common connection hole
25
(
a
)-(
c
). In
FIG. 3
, this connection is made by a nut and bolt assembly
24
.
In one embodiment, connection hole
25
(
c
) is slotted. Thus, the support
14
is slidably coupled to the base
11
. The slidable coupling allows the support
14
to be positioned backwards or forwards depending on the width of the gutter
37
, or the gutter's position relative to the structure
52
. In other words, if the gutter
37
is unusually wide, or if it is positioned a distance away from the structure
52
, the nut and bolt coupling
24
can be loosened, and the support
14
slid forward relative to the base
11
. In this manner, the front end
15
of the support
14
can closely engage the front edge
38
of a wide variety of gutter
37
configurations.
As best seen in
FIG. 3
, when the support
14
is used, the device
10
can be attached to the structure
52
by a removable bracket
16
. In one embodiment, the removable bracket
16
is coupled to the base
11
and support
14
through common connection holes
25
(
a
)-(
c
). The bracket portion
16
has a perpendicular orientation relative to the base
11
. The bracket
16
has one or more bracket connection holes
26
(
FIGS. 1-2
) through which the device
10
can be secured to a third structure type having rain gutters
37
. The bracket
16
is primarily needed when the support
14
is being used to prevent gutter
37
damage caused by the ladder
45
.
The buckle
20
, as noted above, can be rotatably coupled to the base
11
. Typically, a strap
48
is attached to the buckle
20
. The strap
48
is also coupled to a rung
47
on a ladder
45
. The straps
48
could be fastened by any conventional means. For example, in
FIGS. 1-6
, the straps are shown as having strap buckles
49
.
In
FIGS. 1-4
and
6
, a separator
18
is shown coupled between the base
11
and securing section
12
. In this embodiment, the separator
18
is coupled to the base
11
and securing section
12
by a welded screw
22
through common connection holes
28
(
a
)-(
c
). The separator
18
provides, among other advantages, a means to secure the buckle
20
to the base
11
. It is noted that, in other embodiments, additional separators
18
can be used.
FIG. 5
illustrates the operation of the device
10
on a structure
52
having a rain gutter
37
. As is evident from the figure, the bracket portion
16
is secured to the structure
52
through bracket connection holes
26
. A strap
48
then couples the ladder rung
47
to the buckle
20
, which, along with the bracket
16
, is coupled to the base
11
.
Variations of the Invention
In
FIGS. 1-4
and
6
, the hooking end
44
of the securing section
12
is a rounded protrusion. However, it is noted that several configurations could accomplish the “hooking” action, and are considered to be within the scope of the present invention. For example, rather than being rounded, the hooking end
44
could be an angled protrusion.
It is also noted that the end
15
of the support
14
could also be configured in a variety of ways. In the embodiments shown in
FIGS. 1-3
, the end
15
is substantially hook-shaped. However, the end
15
could simply terminate without the hook. Additionally, the end
15
could include a ball, or other enlargement, that would aid in snug engagement of the gutter's edge
38
. Numerous other configurations would be apparent to one skilled in the art.
It is also noted that, in
FIGS. 1-4
and
6
, the base
11
and securing section
12
are shown as one continuous piece of material, separated by a bend in the material. However, it is not necessary that the base
11
and securing section be forged from the same piece. For example, in one embodiment, the base
11
is one piece and the securing portion
12
is welded thereto. Numerous other means of coupling the base
11
to the securing section
12
would be apparent to one skilled in the art.
In
FIGS. 1-4
and
6
, the buckle
20
is shown situated in the bend between the base
11
and the securing section
12
. However, the buckle
20
could be coupled to the base
11
in any number of ways that would be apparent to one skilled in the art.
Numerous modifications and alternative arrangements may be devised by those skilled in the art without departing from the spirit and scope of the present invention and the appended claims are intended to cover such modifications and arrangements. Thus, while the present invention has been described above with particularity and detail in connection with what is presently deemed to be the most practical and preferred embodiments of the invention, it will be apparent to those of ordinary skill in the art that numerous modifications, including, but not limited to, variations in size, materials, shape, form, function, manner of operation, assembly, and use may be made without departing from the principles and concepts set forth herein.
Claims
- 1. A safety device, for securing a ladder to more than one structure comprising:a) base, having one or more connection holes placed thereon, adapted to secure the safety device to a first structure through the connection holes; b) a securing section, coupled to the base section, adapted to secure the safety device to a second structure; c) a buckle, rotatably coupled to the base section; d) a support, removably coupled to the base, adapted to engage a front edge of a gutter, to prevent structural damage to the gutter when the ladder rests on the gutter; and e) a removable bracket portion, having one or more bracket connection holes, perpendicularly oriented to, and coupled to, the base, and adapted to secure the safety device to a third structure, through the bracket connection holes, when the support engages the front edge of the gutter.
- 2. The device of claim 1, further comprising a strap, coupled to the buckle, and adapted to attach to a ladder rung.
- 3. The device of claim 1, wherein the base, the support,and the removable bracket portion are coupled together by a connector through a common connection hole.
- 4. The ladder securing device of claim 1, further comprising a separator, coupled between the base and securing section.
- 5. The ladder securing device of claim 1, wherein the securing section is substantially shaped as a hook.
- 6. The ladder securing device of claim 1, wherein the base has at least two connection holes.
- 7. A safety device, for securing a ladder to more than one structure, comprising:a) a base, having one or more connection holes, adapted to secure the safety device to a first structure through the connection hole, and a buckle rotatably coupled to the base; and b) a securing section, coupled to the base section, adapted to secure the safety device to a second structure, and c) a strap, coupled to the buckle, and adapted to attach to a ladder rung.
- 8. The ladder securing device of claims 7, wherein the securing section is substantially shaped as a hook.
- 9. The ladder securing device of claim 7, further comprising a separator, coupled between the base and the securing section.
- 10. The device of claim 7, further comprising a support, removably coupled to the base, adapted to engage a front edge of a gutter, to prevent structural damage to the gutter when the ladder rests on the gutter.
- 11. The device of claim 10, further comprising a removable bracket portion, having one or more bracket connection holes, perpendicularly oriented to, and coupled to, the base, and adapted to secure the safety device to a third structure through the bracket connection holes, when the support engages the front edge of the gutter.
- 12. The device of claim 11, wherein the base, the support, and the removable bracket portion are coupled together by a connector through a common connection hole.
- 13. A method of securing a ladder to a structure, comprising the steps of:a) providing a securing device, having: i) a base, having one or more connection holes thereon, adapted to secure the device to a first portion of the structure; ii) a hooking section, coupled to the base, adapted to secure the device to a second portion of the structure type; and iii) a buckle, rotatably coupled to the base; b) attaching the base or the hooking section to the first portion of the structure; c) alternatively attaching the hooking section to the second structure; and d) coupling a strap between the buckle and a ladder rung.
- 14. The method of claim 13, wherein the step of attaching the base further comprises the steps of:a) inserting the base beneath a drip edge on the first portion of the structure; and b) attaching the base to the structure with a connector through the connection holes.
- 15. The method of claim 14, wherein the drip edge is flashing.
- 16. The method of claim 13, wherein the base has at least two connection holes.
- 17. The method of claim 13, wherein the step of attaching the hooking section further comprises the steps of:a) locating a hookable edge on the second portion of the structure type; b) engaging the hookable edge with the hooking section.
- 18. The method of claim 13, wherein the securing section is substantially shaped as a hook.
US Referenced Citations (15)