Patent Application
20110147687
This application claims priority of Canadian patent application 2,687,925 filed Dec. 23, 2009.
The technical field relates generally to railings, and more particularly to extendable balusters and installation of railings with such balusters.
Railings may be used in a number of different locations, such as on a porch, on a stairway, or in any area where fencing or additional support for one's hand may be advantageous and/or convenient. In railings, balusters are used with handrails in order to support the handrail and/or to provide additional aesthetic appeal. Railings may be constructed at an angle and may be provided at different heights and so, it may often be necessary to adapt the corresponding balusters to accommodate for these different heights.
In order to provide for handrails having different elevations from the ground, certain balusters of the prior art have been known to use telescopic members for additional extension. These balusters with telescopic members often comprise handrail connectors. Such connectors may be bulky and thus lack aesthetic appeal. Moreover, some handrail connectors include various joints (e.g., pivots, sliding joints) to interface the baluster to given angles of handrails. Railings including balusters may often be installed by handymen or normal workers, without specialized carpentry skills. As such, it may be desirable to provide a baluster requiring little or no adjustment in order to simplify railing installation procedure.
In accordance with one aspect, there is provided an extendable baluster assembly for use with a handrail, the extendable baluster assembly comprising: a baluster comprising an inner member and an outer member circumscribing a portion of the inner member in a telescopic relation, the outer member being fixable to the inner member; and a railing connector having a tubular body defining a cavity for receiving a top end of the baluster, with an inner annular wall in the tubular body, the tubular body having an upper rim and a bottom rim, the inner annular wall being positioned radially with respect to the tubular body such that the inner annular wall is perpendicular to a central axis of the tubular body, the inner annular wall having a fastener bore located therethrough, a fastener being inserted through the fastener bore and into the handrail, such that the railing connector is fixed to the handrail.
In accordance with a further aspect, there is provided an extendable baluster assembly for use with a handrail, the extendable baluster assembly comprising: a baluster being telescopic with ends each having a generally circular cross-section; a ground connector adapted to be attached to a ground surface, and defining a cavity of generally circular cross-section to receive a bottom end of the baluster; a railing connector adapted to be attached to a handrail, and defining a cavity of generally circular cross-section to receive a top end of the baluster; and rotational joints between the baluster and the railing connector, and between the baluster and the ground connector, the rotational joints having a coincident rotational axis normal to the ground when the baluster is vertical, whereby the baluster is rotatable about the rotational axis with respect to the ground and railing connectors.
In accordance with another further aspect, there is provided A method for installing an extendable baluster assembly comprising: attaching a ground connector to a ground surface, attaching a railing connector to a handrail, inserting a telescopic baluster into a cavity of the ground connector, extending the telescopic baluster to the railing connector until a top end of the telescopic baluster enters a cavity of the railing connector, and fixing the length of the telescopic baluster using a fastener.
The extendable baluster assembly 10 may generally be used as a connection element between a handrail and a ground surface, such as the steps in a staircase.
The baluster 12 is telescopic and comprises an inner tubular member 18 and an outer tubular member 20 which circumscribes a portion of the inner tubular member 18. The inner and outer tubular members 18 and 20 may translate relative to one another in the direction shown by A, and so the baluster 12 may extend in order to comprise different lengths. Moreover, due to a generally circular cross-section of the tubular members 18 and 20, the tubular members may rotate with respect to one another until they are locked together. The baluster 12 may therefore extend and be sized so as to support handrails at different elevations from the ground.
The inner and outer tubular members 18, 20 may have a generally circular cross-section, which is of a diameter smaller than that of the railing connector 14 and of the ground connector 16, such that an upper end of the inner tubular member 18 may be received inside at least a portion of the railing connector 14 and a bottom end of the outer tubular member 20 may be received inside at least a portion of the ground connector 16. Alternatively, in another embodiment, the inner tubular member 18 may be received inside the ground connector 16 and the outer tubular member 20 may be received inside the railing connector 14. Other cross-sectional shapes are considered for the tubular members 18, 20. Also, the inner member 18 may be solid and thus not tubular.
The outer tubular member 20 has a collar portion 22 at an upper end thereof. The collar portion 22 has a fastener hole 24 therethrough. A fastener (not shown) may be inserted through the fastener hole 24 and against or into the inner tubular member 18, so as to lock the inner tubular member 18 to the outer tubular member 20 at a desired height, and so limit rotational and translational movement of the tubular members 18, 20 relative to one another. The fastener may comprise various types of fasteners, such as a screw, setscrew, bolt, nail, etc.
In another embodiment, the collar portion 22 may be located at another position along the outer tubular member 20 and therefore not necessarily be at an end thereof. In another embodiment, the collar portion may comprise a plurality of fastener holes 24, such that a plurality of fasteners may be used to fix the outer tubular member 20 to the inner tubular member 18.
In one embodiment, the inner tubular member 18 may comprise an aesthetic portion 26. The aesthetic portion 26 may include a number of different artistic elements, so as to improve or customize the appearance of the extendable baluster assembly 10. The embodiment of
As seen in
The railing connector 14 also comprises an inner annular wall 34 which is positioned radially with respect to the tubular body 28, such that the inner annular wall 34 is perpendicular to a longitudinal axis of the tubular body 28. As seen in
In addition, the upper rim 32 may include a relatively pointy tip 40 at an upper extremity thereof. More specifically, by the combination of the inclination of the upper rim 32 and the circular section, the upper rim 32 defines the pointy tip 40. In one embodiment, the pointy tip 40 may be used to indent and penetrate into the handrail 13 if the material is relatively soft (e.g., wood, plastic), in order to provide additional stability to the railing connector 14 and the baluster 12, as desired. Accordingly, the pointy tip 40 may reduce any gap between the upper rim 32 and the handrail 13 if any.
The ground connector 16 comprises a tubular body 42 and a cavity 43 therein for receiving the outer tubular member 20. The tubular body 42 has an inner annular wall 44 located radially with respect to the tubular body 42. The inner annular wall 44 includes a fastener bore 46 located therethrough. A fastener 48 may be inserted through the fastener bore 46 and into the ground 17, so as to attach the ground connector 16 to the ground 17, with the head of the fastener 48 cooperating with the annular wall 44 to hold the ground connector 16 captive.
As mentioned, the inner and outer tubular members 18, 20 may have a generally circular cross-section, and therefore the baluster 12 may also have a generally circular cross-section. Accordingly, rotational joints are formed between the baluster 12, and the connectors 14 and 16, with a rotational axis being normal to the ground when the baluster 12 is installed vertically. In addition, although the inner and outer tubular members 18, 20 may be received inside the railing connector 14 and the ground connector 16, the inner and outer tubular members 18, 20 may not be attached to said connectors 14, 16. Therefore, the baluster 12 is free to rotate inside the connectors 14, 16, relative to said connectors 14, 16, the handrail 13 and the ground 17. The baluster 12 is rotatable as desired, for example to hide any fasteners visible from the outside, to prevent injuries to young children who may get caught inside the baluster's aesthetic portion 26, or simply for aesthetic purposes. For example, the aesthetic portion 26 may look differently depending on the angle or the position at which a person is looking at it, and so the baluster 12 may be rotated in order to present a particular view to a certain position, as desired.
Now that the components of the extendable baluster assembly 10 are described, an installation thereof is set forth. The extendable baluster assembly 10 may be installed by either first attaching the railing connector 14 or the ground connector 16 to the handrail 13 or ground surface 17, respectively. The railing connector 14 is attached to the handrail 13 by positioning the railing connector 14 on the handrail 13 and by inserting the fastener 38 through the fastener bore 36 and into the handrail 13. A direction of insertion of the fastener 38 is thus essentially normal to the ground.
If necessary, the railing connector 14 may be pressed against a bottom surface of the handrail 13 to make an indent and thus reduce any gap between the upper rim 32 and the handrail 13.
The ground connector 16 is attached to the ground surface 17 by positioning the ground connector 16 on the ground 17, and by inserting the fastener 48 through the fastener bore 46 and into the ground 17. In a preferred embodiment, the railing connector 14 and the ground connector 16 may be positioned with respect to each other, such that the baluster 12 located therebetween is substantially vertical, i.e. straight.
Having attached the railing connector 14 and the ground connector 16, the baluster 12 may be received inside a portion of one of the connectors 14, 16, and the inner and outer tubular members 18, 20, may be translated relative to one another, such that the baluster 12 is received inside both of the connectors 14, 16, and is extended therebetween to the desired height. The fastener (not shown) may then be inserted through the fastener hole 24 of the collar portion 22 of the outer tubular member 20, such that relative movement between the inner and outer tubular members 18, 20 is minimized, and the length of the baluster 12 is fixed.
An orientation of the baluster 12 may be adjusted by the rotation of the baluster 12 with respect to the connectors 14, 16. The axis of rotation of the baluster 12 is normal to the ground when the baluster 12 is vertical.
This installation method should not be limited to this specific order of steps, i.e. the steps are interchangeable, for example, the ground connector 16 may be attached to the ground 17 and the baluster 12 may be inserted into the ground connector 16, prior to attaching the railing connector 14 to the handrail 13.
The extendable baluster assembly 10 is generally made of metal, although in other embodiments, a number of different types of metals, plastics or woods may also be used. The extendable baluster assembly 10 may generally be used with handrails on stairways, or with handrails on other types of inclined surfaces.
The above description is meant to be exemplary only, and one skilled in the art will recognize that changes may be made to the embodiments described without departing from the scope of the invention disclosed. For example, the extendable baluster assembly may also be used with a handrail on a flat surface, by simply having the pointy end of the upper rim of the railing connector perforate and penetrate into the handrail. Still other modifications which fall within the scope of the present invention will be apparent to those skilled in the art, in light of a review of this disclosure, and such modifications are intended to fall within the appended claims.
| Number | Date | Country | Kind |
|---|---|---|---|
| 2,687,925 | Dec 2009 | CA | national |
