Retractable barrier
A retractable barrier (10) includes an elongate housing (12) having a first end (14), a second end (16), and a slotted opening (18) extending between the first end (14) and the second end (16). A substrate support (20) is rotatably mounted within the housing (12). A barrier substrate (22) is provided of a height substantially equal to a length of the slotted opening (18). The barrier substrate (22) has an attachment end (26) and a free end (24). The barrier substrate (22) is rolled onto the substrate support (20) with the attachment end (26) being attached to the substrate support (20) and the free end (24) extending through the slotted opening (18) of the housing (12) to permit a selected quantity of the barrier substrate (22) to be extended from the housing (12). The barrier substrate (22) is configurable into non-linear configurations by the selectively attaching poles (28) where a change of direction occurs. A crank (32) is provided for rotating the substrate support (20), thereby retracting the barrier substrate (22) back into the housing (12).
The present invention relates to a retractable barrier
BACKGROUND OF THE INVENTIONUnited States patents U.S. Pat. No. 5,660,144 (Venti 1997) and U.S. Pat. No. 5,690,317 (Sandsburg 1997) disclose retractable barriers. The Venti reference was developed as a pet barrier, to keep a pet out of selected areas of ones home. The Sandsburg reference was developed as a child safety barrier, to keep a child away from stairs and other hazardous areas of ones home. Both the Venti and Sandsburg references are only capable of being deployed in a short span linear application, such as across a doorway.
U.S. Pat. No. 5,029,819 (Kane 1991) discloses a system for handling and supporting flexible material used in the erection of barricades. The Kane reference uses pole receiving tubes and stiffing straps. With the addition of spring clips, the stiffening straps can a dual purpose of also supporting poles. U.S. Pat. No. 6,092,792 (Camara 2000) discloses a portable barrier. The Camara reference uses a pinch and sew procedure to form sleeves for supporting poles.
The international search report under the patent cooperation treaty identified as prior art U.S. Pat. No. 5,029,819 (Kane 1991), which discloses flexible fencing dispensed from a roll.
SUMMARY OF THE INVENTIONWhat is required is a retractable barrier which is capable of being deployed in non-linear applications.
According to the present invention there is provided a retractable barrier which includes an elongate housing having a first end, a second end, and a slotted opening extending between the first end and the second end. A substrate support is rotatably mounted within the housing. A barrier substrate is provided of a height substantially equal to a length of the slotted opening. The barrier substrate has an attachment end and a free end. The barrier substrate is rolled onto the substrate support with the attachment end being attached to the substrate support and the free end extending through the slotted opening of the housing to permit a selected quantity of the barrier substrate to be extended from the housing. Several poles are provided along with means to attach the poles at spaced intervals along the barrier substrate in a supporting position. The barrier substrate is configurable into non-linear configurations by the selectively attaching the poles where a change of direction occurs. Means is provided for rotating the substrate support, thereby retracting the barrier substrate back into the housing.
The retractable barrier, as described above, can be configured to suit virtually any shape, merely by a selective positioning of the poles.
Although there are various ways of attaching the poles in a supporting position to the barrier substrate, such as by means of clamps and other hardware. It is preferred that the barrier substrate be provided with a plurality of openings (preferably slots) arranged in parallel rows and columns. The poles are attached to the barrier substrate by weaving each of the poles through the openings of one of the columns. The use of columns is less expensive and there is no danger of the loss of necessary attachment hardware.
It is envisaged that the retractable barrier will always be used with poles. Even more beneficial results may, therefore, be obtained when the housing has a plurality of receptacles adapted for storing the poles. One way of configuring the receptacles is to have a first flange positioned at the first end and a second flange positioned at the second end of the housing, with the receptacles being positioned in the first flange and the second flange.
Although other means may be used to rotate the substrate support, such as a biasing spring, it is preferred that the means for rotating the substrate support be a crank. A crank is viewed as being more durable and reliable in this application.
BRIEF DESCRIPTION OF THE DRAWINGSThese and other features of the invention will become more apparent from the following description in which reference is made to the appended drawings, the drawings are for the purpose of illustration only and are not intended to in any way limit the scope of the invention to the particular embodiment or embodiments shown, wherein:
The preferred embodiment, a retractable barrier generally identified by reference numeral 10, will now be described with reference to
Structure and Relationship of Parts:
Referring to
Operation:
The use and operation of retractable barrier 10 will now be described with reference to
Structure and Relationship of Parts of Most Recent Version:
There will now be described the most recent version of retractable barrier 10 with reference to
Operation of Most Recent Version:
Referring now to
In this patent document, the word “comprising” is used in its non-limiting sense to mean that items following the word are included, but items not specifically mentioned are not excluded. A reference to an element by the indefinite article “a” does not exclude the possibility that more than one of the element is present, unless the context clearly requires that there be one and only one of the elements.
It will be apparent to one skilled in the art that modifications may be made to the illustrated embodiment without departing from the spirit and scope of the invention as hereinafter defined in the Claims.
Claims
1. A retractable barrier (10), comprising:
- an elongate housing (12) having a first end (14), a second end (16), and a slotted opening (18) extending between the first end (14) and the second end (16);
- a substrate support (20) rotatably mounted within the housing (12);
- a barrier substrate (22) of a height substantially equal to a length of the slotted opening (18), the barrier substrate (22) having an attachment end (26) and a free end (24), the barrier substrate (22) being rolled onto the substrate support (20) with the attachment end (26) being attached to the substrate support (20) and the free end (24) extending through the slotted opening (18) of the housing (12);
- several poles (28) being provided along with means to attach the poles at spaced intervals along the barrier substrate (22) in a supporting position, the barrier substrate (22) being configurable into non-linear configurations by the selectively attaching the poles (28) where a change of direction occurs, the means to attach the poles (28) to the barrier substrate (22) consisting of a plurality of pole receiving openings (30) through the barrier substrate (22); and
- means being provided for rotating the substrate support, thereby retracting the barrier substrate (22) back into the housing (12).
2. The retractable barrier as defined in claim 1, wherein means are provided to lock the substrate support in a selected rotational position with a selected quantity of barrier substrate (22) extended from the housing (12) and the housing (12) forming part of the barrier.
3. The retractable barrier as defined in claim 1, wherein the housing (12) has a plurality of receptacles (38) adapted for storing the poles (28).
4. The retractable barrier as defined in claim 3, wherein a first flange (34) is positioned at the first end (14) and a second flange (36) is positioned at the second end (16) of the housing (12), the receptacles (38) being positioned in the first flange (34) and the second flange (36).
5. The retractable barrier as defined in claim 1, wherein the means for rotating the substrate support (20) being a crank (32).
6. The retractable barrier as defined in claim 1, wherein the barrier substrate (22) displays a message.
7. The retractable barrier as defined in claim 2, wherein an end cap is fixed at the first end of the housing, the end cap having a plurality of receptacles spaced about a 360 degree circumference, a crank handle being provided on a crank mounting on the rotatable substrate support, the crank handle having an operative position and a locking position, in the locking position, a cam carried by the crank handle engages one of the receptacles on the end cap to non-rotatably fix the substrate support to the housing.
8. The retractable barrier as defined in claim 1, wherein the substrate has vertical pockets positioned at regular spaced intervals which are adapted to accommodate poles.
9. The retractable barrier as defined in claim 1, wherein each pole has a receptacle adapted to receive one of a lighting or signage support.
10. The retractable barrier as defined in claim 1, wherein the housing has a bottom cap with a threaded male member adapted to screw into a threaded female member of a weighted base.
11. The retractable barrier as defined in claim 1, wherein tensioning clips are securable to each pole to tension the barrier substrate.
12. The retractable barrier as defined in claim 11, wherein each tensioning clip is comprised of:
- a body;
- an open ended receptacle at the top of the body adapted to receive the top of a pole; and
- a resilient clip adapted to receive the pole covered by the substrate.
13. The retractable barrier as defined in claim 1, wherein two barrier substrates are joined by a joining clip.
14. The retractable barrier as defined in claim 13, wherein the joining clip comprises a body having an aperture at each end, where each aperture is adapted to join one of pole to pole, housing to housing or housing to pole.
15. A method of erecting a barrier, comprising the steps of:
- providing a housing sitting on a self supporting base with a retractable barrier substrate housed within the housing, the retractable barrier substrate having pole receiving openings at selected intervals along the substrate;
- pulling a selected length of barrier substrate from the housing, locking the barrier substrate to the housing and laying the barrier substrate on a ground surface;
- inserting poles having self supporting weighted bases in selected ones of the pole receiving pockets with the poles being left in a substantially horizontal position;
- standing up a pole positioned farthest from the housing, the movement of standing up the pole creating a movement to a vertical position of the barrier substrate resulting in all of the poles standing in a vertical orientation.
16. The retractable barrier as defined in claim 1, wherein the barrier substrate is secure by less than four fasteners to a shaft.
Type: Application
Filed: Oct 31, 2005
Publication Date: Jun 22, 2006
Applicant: BRT Systems Inc. (Edmonton)
Inventors: Robert Hopp (Edmonton), Robert Rattai (Edmonton), Thomas Lamb (Thornhill)
Application Number: 11/263,001
International Classification: E04H 17/16 (20060101);