a is an enlarged, partially cutaway view of the gate of
a-2f are various views of a keeper for use with a gate of the type shown in
Reference is now made to
Although not considered to form an aspect of the invention, an exemplary mounting of the gate G will be described. As shown in
With reference to both
With reference to
For reasons better understood upon reviewing the description that follows, at least the elongated sides 10a, 10b of the body 10 include surfaces that slope relative to the generally planar bottom surface. Preferably, the slope of the surface of each side 10a, 10b is at an angle of about 45° (see angle α in
As noted above, the keeper 10 may be attached to the floor in a position for receiving the depending portion or leg L forming part of the gate G in at least the expanded condition. To accomplish this, mechanical fasteners, such as screws S, may be used, in which case the body 12 may include suitable passages 16 adjacent the slot 14 for receiving the screws. Preferably, the passages 16 are countersunk adjacent the upper end (note sectional view in
With reference now to
As should be appreciated, several advantages arise as a result of the use of the above-described aspects of the present invention. For one, the mid-section of the expanded gate G intermediate the sides is securely held in place against movement in a direction transverse to the direction of elongation E (i.e., pulling or pushing). Consequently, gate stability is enhanced, which is especially important when the gate is positioned at the top of a flight of stairs. However, the ability of the gate G to be withdrawn temporarily from the position occupying the majority of the opening remains uncompromised, since a slight lifting force comparable to that required for unlatching is all that is required to disengage the leg L and/or foot F from the slot 14. Once this is done, the gate G may of course be freely swung to return the opening to the walk-through state. Return of the gate to occupy the opening completed with equal ease and straightforwardness.
A related advantage of the keepers 10 when the opening is in the wall-through state is the relatively low profile. Consequently, the potential for a person's foot contacting the keeper 10 is minimized. The sloped leading and trailing sides 10a, 10b also help to ensure that if contact with a passing foot is made, it is insubstantial and does not impede moving through the opening. The oversized nature of the opening provided by the slot 14 also advantageously ensures that it is relatively easy to position the leg L therein, yet it remains securely held in place.
The following example demonstrates the efficacy of the invention.
A testing jig was constructed in which the sides of the gate were attached in the conventional manner. The gate was then expanded to occupy an opening having a dimension of approximately 50 inches, as proposed in ATSM Standard No. F 1004-04 for pressure mounted gates.
A keeper 10 made of polypropylene was attached to a carpeted floor. Fastening was by way of two #8 by 1½″ wood screws penetrating through openings 16 adjacent the slot 14 in the keeper 10 into the underlying subfloor. The leg L attached to the gate G was inserted into the slot 14 such that all lateral faces of the foot F were substantially surrounded, as shown in
Using a suitable means of attachment and a force gauge, a substantially linear pulling force of greater than 50 pounds was applied to the gate G adjacent the mid-section. The leg L remained securely held in the keeper 10. Upon releasing the force, the gate G immediately returned to the original condition fully occupying and blocking the opening.
The foregoing description of several aspects of the inventions disclosed herein are presented for purposes of illustration and description. The embodiments described are not intended to be exhaustive or to limit the invention to the precise form disclosed. Obvious modifications or variations are possible in light of the above teachings. For example, while the use of mechanical fasteners such as screws is preferable, especially in the case where the floor includes carpet, it is within the broadest aspects to use an adhesive, such as tape or glue, to fasten the keeper 10 in place. Also, the depending portion of the gate G need not be the vertical leg L, but could simply be one or more of the gate members M. The embodiments described were chosen to provide the best illustration of the principles of the invention and its practical application to thereby enable one of ordinary skill in the art to utilize the invention in various embodiments and with various modifications as are suited to the particular use contemplated. All such modifications and variations are within the scope of the invention when interpreted in accordance with the breadth to which it is fairly, legally, and equitably entitled.
This application claims the benefit of U.S. Provisional Patent Application Ser. No. 60/849,303, filed Oct. 4, 2006, the disclosure of which is expressly incorporated herein by reference.
Number | Date | Country | |
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60849303 | Oct 2006 | US |