Portable seating support
A portable seating support for use in a roof structure, for example in a building, including a saddle defined by a bridge portion and a pair of legs which are cantilevered downwardly from opposite edges of the bridge portion, and a seat supported on the bridge member by an upright post. The bridge portion has a pair of end edges which extend transversely between the legs, and at least one of these end edges defines thereon at least one tooth for engaging a support member of the roof structure. Additionally, the saddle is configured for positioning on a horizontally-oriented member of the roof structure, if space permits.
This application claims the benefit of provisional application Ser. No. 61/269 993, filed Jul. 1, 2009, hereby incorporated herein by reference.
FIELD OF THE INVENTIONThe invention relates to a portable seating support, particularly a seating support for use in an environment having a support structure defined by individual horizontal, vertical and/or diagonal members, such as inside the roof structure of a building composed of rafters fabricated from dimensioned lumber.
BACKGROUND OF THE INVENTIONDuring the construction and maintenance of wood frame structures, such as residences, the tradesman or homeowner may find it necessary to operate within the roof structure of the building, e.g. the attic. Although it is known in some structures to have a finished floor, it is common for a roof area formed from prefabricated wood trusses to lack a structural floor due to the presence of cross-bracing members that can generally prevent the construction of a supporting floor and prevent a tradesman and homeowner from walking upright in the “attic space” of the residence. The tradesman or homeowner is thus required to perform a delicate balancing act by stepping from rafter to rafter to avoid falling through the open space therebetween or placing his weight on the non-structural wallboard secured to the rafters and forming the ceiling of the room below. Once in a position to perform work, the tradesman must remain balanced on one or more trusses and generally crouched over the work due to the lack of headroom in the attic space. This positioning is not only precarious, it is tiring. The work performed therefore is not only dangerous but is inefficient and more likely to result in errors as the tradesman's attention is divided between maintaining a safe purchase on the rafters and performing the work in a satisfactory manner.
It would accordingly be advantageous to the worker to have a safe and ready perch from which to accomplish his work. The construction of a platform in the attic space, while effective, is not efficient, as any such platform must be moved to each work location within the attic space. Further, any work performed in the attic space may be a one-time exercise, not warranting construction of a permanent platform. Such a platform, which would generally be constructed from wood, is also bulky and would require multiple trips by the tradesman into the attic space to convey the wood to the work site.
A more practical portable support for the tradesman would likely lie in the form of a stool that can support the weight of the worker in a crouched position, obviating the need of the worker to support his own weight in the crouched position, resulting in fatigue. An analogous example of a body support is found in U.S. Pat. No. 7,325,868 (West et al.). West et al. disclose a tool for providing support to the human upper body when having to lean over to work. In one disclosed example, the tool includes a base member configured to rest upon an axle, shaft or other support arm member, such as in a motor vehicle, and includes a body support portion supported above the base member by a telescoping height-adjusting member. However, the base of the tool disclosed by West et al. is adapted for engaging a tubular member. The tool base is not well adapted for engaging a member having a rectangular cross section, nor is it well adapted for positively engaging a non-horizontal member, such as the diagonal or vertical bracing members of a roof truss.
Accordingly, it would be advantageous to provide a working support in the form of a portable seat having a base member particularly configured to engage a rectangular structural element such as a board in a roof truss, and more particularly configured to positively engage a non-horizontal member, such as a vertical or a diagonal support member in a roof truss.
The invention is illustrated in the accompanying drawings, in which:
Certain terminology will be used in the following description for convenience and reference only, and will not be limiting. For example, the words “upwardly”, “downwardly”, “rightwardly” and “leftwardly” will refer to directions in the drawings to which reference is made. The words “inwardly” and “outwardly” will refer to directions toward and away from, respectively, the geometric center of the arrangement and designated parts thereof. Said terminology will include the words specifically mentioned, derivatives thereof, and words of similar import.
DETAILED DESCRIPTION OF THE INVENTIONReferring to
A post member 150 is fixed to and extends upwardly from the bridge portion 115 of the saddle member 110, opposite the direction of the depending leg members 120, 125. The post member 150 can be square or circular in cross section, and can be of fixed length or, as shown in the embodiment of
Referring to
Referring to
As mentioned above, the seating support 100 may be used on a horizontal member H, with the saddle member 110 straddling the horizontal member H, if the horizontal member H is sufficiently unobstructed. The width of the bridge portion 115 of the saddle member 110, and thereby the distance between the depending leg members 120, 125, is chosen to match the common width of lumber. It is also foreseeable to provide an adjustable saddle member, whereby the distance between the depending legs can be adjusted to match the dimension of lumber in use at the current work site, or for use where multiple boards are secured together to form a single structural member.
The seating support may also be used in a truss structure having two adjacent diagonal members D as shown in
Although particular preferred embodiments of the invention have been disclosed in detail for illustrative purposes, it will be recognized that variations or modifications of the disclosed apparatus, including the rearrangement of parts, lie within the scope of the present invention.
Claims
1. A portable seating support for use inside a roof structure defined by a plurality of support members, said seating support comprising:
- a post member having vertically-spaced upper and lower ends;
- a seat fixed to said upper end of said post member; and
- a saddle fixed to said lower end of said post member, said saddle being defined by a bridge portion and a pair of leg portions cantilevered downwardly from respective opposed and spaced-apart edges of said bridge portion, said bridge portion having a pair of spaced-apart end edges which extend transversely between upper end portions of the respective said leg portions, one of said end edges defining a tooth thereon for engaging a non-horizontal support member of a roof structure.
2. The seating support of claim 1, wherein said leg portions are horizontally spaced from and generally parallel to one another and each said leg portion is oriented at a substantially right angle relative to said bridge portion so as to define a downwardly-opening space therewith such that said saddle can accommodate in said space a support member having a generally rectangular transverse cross-section.
3. The seating support of claim 1, wherein both of said end edges of said bridge portion define a tooth thereon for engaging two spaced-apart non-horizontal support members of a roof structure.
4. The seating support of claim 1, wherein said bridge portion has a longitudinal length defined between said end edges which is less than longitudinal lengths of the respective said leg portions so as to define a pair of recesses which project inwardly towards said post member on opposite longitudinal ends of said seating support, each said recess opening sidewardly outwardly on said opposite longitudinal ends of said seating support for respectively receiving therein a vertically-oriented support member of a roof structure and a diagonally-oriented support member of a roof structure located adjacent but horizontally spaced from the vertically-oriented support member.
5. The seating support of claim 4, wherein both of said end edges of said bridge portion define a tooth thereon such that said end edges engage the vertically-oriented support member and the diagonally-oriented support member of the roof structure.
6. The seating support of claim 5, wherein said post member is vertically adjustable.
7. The seating support of claim 1, wherein said one end edge of said bridge portion defines a plurality of teeth thereon.
8. The seating support of claim 3, wherein said end edges of said bridge portion each define a plurality of teeth thereon.
9. The seating support of claim 1, wherein said bridge portion has a longitudinal length defined between said end edges which is less than longitudinal lengths of the respective said leg portions so as to define a pair of recesses which project inwardly towards said post member on opposite longitudinal ends of said seating support, each said recess opening sidewardly outwardly on said opposite longitudinal ends of said seating support for respectively receiving therein a diagonally-oriented support member of a roof structure.
10. The seating support of claim 9, wherein both of said end edges of said bridge portion define a tooth thereon configured to engage the respective diagonally-oriented support members of the roof structure.
11. The seating,support of claim 4, wherein one said end edge of said bridge portion defines a plurality of teeth thereon, and the other said end edge of said bridge portion defines a single tooth thereon which is larger the respective ones of said teeth of said plurality of teeth for engagement with the vertically-oriented support member.
Type: Application
Filed: May 18, 2010
Publication Date: Jan 6, 2011
Inventor: Gary W. Bannister (Grand Junction, MI)
Application Number: 12/800,567