Swimming pool ladder
RE048061 ยท 2020-06-23
Assignee
Inventors
Cpc classification
E06C7/00
FIXED CONSTRUCTIONS
E06C7/081
FIXED CONSTRUCTIONS
E06C7/08
FIXED CONSTRUCTIONS
E04H4/14
FIXED CONSTRUCTIONS
International classification
E04H4/14
FIXED CONSTRUCTIONS
E06C7/00
FIXED CONSTRUCTIONS
Abstract
A swimming pool ladder typically utilized with a large capacity swimming pool for enabling bathers to conveniently enter and exit the pool. In its most fundamental embodiment, the swimming pool ladder includes a first ladder section connected to a second ladder section by a top platform. Each ladder section includes a pair of J-shaped side rails for providing a ladder frame. A plurality of rung anchors are mounted upon each of the side rails for supporting a plurality of rungs. Each of the rung anchors includes a load bearing flange. Further, each of the rungs includes a pair of U-shaped openings and a pair of grooves formed within the U-shaped openings for receiving and cooperating with one of the run anchors and the corresponding load bearing flange. Finally, a plurality of retainer pins are provided for removably securing the rungs to the rung anchors.
Claims
1. A swimming pool ladder for use with a large capacity swimming pool comprising: a first ladder section connected to a second ladder section by a top platform for providing an entry and an exit to a large capacity swimming pool; each ladder section comprising: a pair of J-shaped side rails for providing a ladder frame; a plurality of rung anchors welded to said side rails for supporting a plurality of rungs, each of said rung anchors including a load bearing flange molded to an exterior surface of a cylinder body of said rung anchors, and each of said rungs having a pair of U-shaped openings formed at a rear surface of said rungs and a pair of grooves formed within said U-shaped openings for receiving and cooperating with one of said rung anchors and said corresponding load bearing flange; and a plurality of retainer pins for removably securing said rungs to said rung anchors.
2. The swimming pool ladder of claim 1 wherein each of said rungs is comprised of a high strength plastic polymer.
3. The swimming pool ladder of claim 1 wherein each of said rung anchors is comprised of a high strength plastic.
4. The swimming pool ladder of claim 1 wherein said top platform further includes a pair of safety hand rails.
5. The swimming pool ladder of claim 1 wherein each of said side rails is comprised of metal tubing.
6. The swimming pool ladder of claim 1 wherein each of said side rails further includes a foot cap.
7. The swimming pool ladder of claim 1 wherein each of said retainer pins is a slotted retainer pin having a slotted bulbous tip, said pins comprised of plastic.
8. The swimming pool ladder of claim 1 wherein said cylinder body includes a plurality of protuberances formed therein for cooperating With a corresponding plurality of compression indentations formed on said side rails for securing said rung anchors to said side rails.
9. The swimming pool ladder of claim 1 wherein each of said rung anchors further includes a first coplanar surface for aligning with a top surface of a corresponding one of said rungs.
10. The swimming pool ladder of claim 9 wherein each of said rung anchors further includes a second coplanar surface for aligning with a rear surface of a corresponding one of said rungs.
11. The swimming pool ladder of claim 1 wherein each of said rung anchors further includes a support member for supporting said load bearing flange.
12. The swimming pool ladder of claim 1 wherein said load bearing flange of each of said rung anchors further includes a pair of penetrations for receiving said plurality of retainer pins.
13. The swimming pool ladder of claim 1 wherein each of said rungs further includes a plurality of penetrations formed vertically through said rungs for receiving said plurality of retainer pins.
14. The swimming pool ladder of claim 1 wherein each of said rungs includes an under surface having a reinforced lattice structure.
15. A swimming pool ladder for use with a large capacity swimming pool comprising: a first ladder section connected to a second ladder section by a top platform for providing an entry and an exit to a large capacity swimming pool; each ladder section comprising: a pair of J-shaped side rails for providing a ladder frame; a plurality of rung anchors welded to said side rails for supporting a plurality of rungs, each of said rung anchors including a load bearing flange molded to an exterior surface of a cylinder body of said rung anchors, and each of said rungs having a pair of U-shaped openings formed at a rear surface of said rungs and a pair of grooves formed within said U-shaped openings for receiving and cooperating with said cylinder body and said load bearing flange of one of said rung anchors; and a plurality of retainer pins for removably securing said rungs to said rung anchors.
16. The swimming pool ladder of claim 15 wherein each of said rung anchors further includes a first coplanar surface for aligning with a top surface of a corresponding one of said rungs.
17. The swimming pool ladder of claim 16 wherein each of said rung anchors further includes a second coplanar surface for aligning with a rear surface of a corresponding one of said rungs.
18. A swimming pool ladder for use with a large capacity swimming pool comprising: a first ladder section connected to a second ladder section by a top platform for providing an entry and an exit to a large capacity swimming pool; each ladder section comprising: a pair of J-shaped side rails for providing a ladder frame; a plurality of rung anchors welded to said side rails for supporting a plurality of rungs, each of said rung anchors including a load bearing flange molded to an exterior surface of a cylinder body of said rung anchors, a first coplanar surface for aligning with a top surface of a corresponding one of said rungs, and a second coplanar surface for aligning with a rear surface of a corresponding one of said rungs, each of said rungs having a pair of U-shaped openings formed at a rear surface of said rungs and a pair of grooves formed within said U-shaped openings for receiving and cooperating with one of said rung anchors and said corresponding load bearing flange; and a plurality of retainer pins for removably securing said rungs to said rung anchors.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
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DETAILED DESCRIPTION OF THE INVENTION
(19) The present invention is a swimming pool ladder 100 for use with a large capacity above-the-ground swimming pool 102 typically erected in the out-of-doors as is shown in
(20) In a preferred embodiment, the swimming pool ladder 100 includes the first ladder section 104 and the second ladder section 106 as shown in
(21) Referring now to the first ladder section 104 (and also to the identical ladder section 106), a pair of J-shaped side rails 112 are employed to form a ladder frame. In other words, each of the first and second ladder sections 104 and 106, respectively, includes the pair of J-shaped side rails 112 which forms the basic framework of the inventive swimming pool ladder 100. The J-shaped side rails 112 are comprised of rigid cylindrical metal tubing and can be comprised of, for example, aluminum or other suitable metal. The length of each J-shaped side rail 112 is a function of the height of the swimming pool ladder 100 which is dependent upon the size of the swimming pool 102 shown in phantom in
(22) The bottom end 114 of each side rail 112 is fanned out so that the cylindrical metal tubing exhibits somewhat less than a ninety degree turn so that it appears to be J-shaped as shown in
(23) A top end 118 of each of the J-shaped side rails 112 exhibits a reduction in diameter for interfacing with the top platform 108 and a pair of safety hand rails 119 as is clearly shown in the exploded view of
(24) The top platform 108 is rectangular in shape and is comprised of a heavy duty plastic polymer such as Acrylonitrile Butadiene Styrene (ABS) or Polyvinylchloride (PVC). One of the functions of the top platform 108 is to serve as a passageway between the first ladder section 104 and the second ladder section 106. This is possible since the pair of J-shaped side rails 112 of the first ladder section 104 and the pair of J-shaped side rails 112 of the second ladder section 106 each connect to the top platform 108. The top platform 108 also serves to enable the top end 118 of each of the J-shaped side rails 112 to connect to a corresponding one of a plurality of hollow terminal ends 126 of the pair of safety hand rails 119. The top platform 108 also includes a downward extending skirt 128 on each side of a non-slip rectangular top surface 130.
(25) At each corner of the top platform 108 defined by the intersection of the rectangular top surface 130 and a pair of the downward extending skirts 128, a cylindrical channel 132 is formed. The cylindrical channel 132 formed in each corner of the top platform 108 is set at an angle somewhat greater than ninety degrees. Each of the four cylindrical channels 132 further includes a third penetration 134 on the outer surface Of the channel 132 and a slot 136 (not shown) formed on the inner surface of the channel 132. Each of the third penetrations 134 is aligned with the corresponding slot 136 to enable the passage of a fastener there through. Additionally, the platform 108 includes a pair of vertical signboards 138 attached to opposing downward extending skirts 128 with plastic fasteners (not shown). The signboards 138 are utilized to post safety and warning messages to bathers.
(26) The pair of safety hand rails 119 are shown mounted above the top platform 108 is
(27) After this task is accomplished, the top end 118 of the side rail 112 is extending above the cylindrical channel 132 of the platform 108. One of the hollow terminal ends 126 of each of the safety hand rails 119 is placed over the top end 118 of the corresponding side rail 112. Thereafter, the fourth penetration 140 of the corresponding safety hand rail 119 is aligned with the second penetration 122 formed in the top end 118 of the corresponding side rail 112 and one of the plurality of fasteners 142 is passed there through. Once each of the fasteners 142 is secured, the platform 108 is attached to and stabilized by the J-shaped hand rails 112 and the safety hand rails 119 are secured to the top platform 108. Disassembly is achieved by the reverse of this procedure.
(28) Each of the pair of J-shaped side rails 112 for both the first ladder section 104 and the second ladder section 106 includes a plurality of rung anchors 146 permanently affixed to the side rails 112 as is clearly shown in
(29) Each of the plurality of step anchors 146 includes a cylinder body 154 that encloses a portion of the corresponding side rail 112. Thus, an inner surface 156 of the cylinder body 154 of each of the rung anchors 146 is in physical contact with outer surface 150 of the side rails 112. The inner surface 156 of the cylinder body 154 of each of the plurality of rung anchors 146 includes a pair of protuberances 158 formed thereon. The situs of each of the pair of protuberances 158 correspond to and cooperate with the location of the corresponding compression indentations 152 formed on the outer surface 150 of each of the side rails 112. Consequently, each of the plurality of rung anchors 146 is mechanically attached to the outer surface 150 of the corresponding J-shaped side rail 112.
(30) In addition to the mechanical connection between each of the rung anchors 146 and the corresponding side rail 112, each of the rung anchors 146 is also ultrasonically welded to the corresponding side rail 112. Ultrasonic welds are well known in the art and includes the use of sound waves to create kinetic energy which in turn generates heat. The generation of heat results in the melting of components in contact to form a bonded joint. Each of the plurality of rung anchors 146 is an injection molded part that can be comprised of a plastic polymer, for example, nylon or in the alternative another high strength plastic. By the use of ultrasonic welding, each of the rung anchors 146 is welded directly to the corresponding J-shaped side rail 112 as is shown in
(31) Each of the plurality of rung anchors 146 includes a load bearing flange 160 formed upon an exterior surface of the cylinder body 154 as is clearly shown in
(32) Each of the rung anchors 146 also includes a pair of coplanar surfaces including a first coplanar surface 170 and a second coplanar surface 172. The first coplanar surface 170 is also injection molded to the cylinder body 154 and extends upward at a slight angle from the horizontal. The second coplanar surface 172 is injection molded to the first coplanar surface 170, load bearing flange 160, and to a support member 174. The support member 174 is injection molded to the cylinder body 154, load bearing flange 160, and first coplanar surface 170 in addition to the second coplanar surface 172. The function of the support member 174 is to provide rigidity and strength to each of the rung anchors 146. The first coplanar surface 170 and the second coplanar surface 172 correspond to and cooperate with the construction of each corresponding rung 148.
(33) The first coplanar surface 170 of each rung anchor 146 aligns with a top surface 176 of the corresponding rung 148. Thus, the first coplanar surface 170 is a surface that is planar (i.e., occurs in the same plane) with the top surface 176 of the corresponding rung 148. Additionally, the second coplanar surface 172 of each rung anchor 146 aligns with a rear surface 178 of the corresponding rung 148. Consequently, the second coplanar surface 172 is a surface that is planar (i.e., occurs in the same plane) with the rear surface 178 of the corresponding rung 148. Therefore, when a rung 148 is mounted upon a corresponding rung anchor 146 on a side rail 112, the U-shaped opening 168 formed in each rung 148 is closed as is shown in
(34) Each of the plurality of rungs 148 is generally rectangular in shape as shown in
(35) Each of the U-shaped openings 168 also includes a raised collar 186 which rises above the top surface 176 of each of the rungs 148. The raised collar 186 as part of the structure of each of the rungs 148 assists in securing the cylinder body 154 of the rung anchor 146 in the U-shaped opening 168. In particular, the raised collar 186 provides more surface area in the U-shaped opening 168 of each of the rungs 148 to more securely grasp the cylinder body 154 of the rung anchor 146. The underneath of each of the rungs 148 of the inventive swimming pool ladder 100 is illustrated in
(36) Each of the plurality of slotted retainer pins 182 serves to enable the convenient assembly and disassembly of each rung 148 to and from the corresponding rung anchor 146. Each retainer pin 182 is also comprised of a suitable plastic polymer, such as nylon, and is shown clearly in
(37) During assembly of the swimming pool ladder 100 of the present invention, the load bearing flange 160 of each of the rung anchors 146 is aligned with the groove 166 of the U-shaped opening 168 of the corresponding rung 148. By utilizing hand pressure, the load bearing flange 160 is entirely inserted into the groove 166 of the corresponding U-shaped opening 168. Once the rung 148 is mounted upon the corresponding rung anchor 146, the penetrations 184 vertically formed through each rung 148 align with the corresponding penetrations 180 formed through the rearward portion 164 of the load bearing flange 160 as shown in
(38) Thereafter, the top platform 108 is installed on the first ladder section 104 and subsequently on the second ladder section 106. Once the top platform 108 is installed on the first ladder section 104, the corresponding safety hand rail 119 is installed. Next, the top platform 108 is installed on the second ladder section 106 and the corresponding safety hand rail 119 is installed. Once the components are assembled, the first penetrations 120 in the side rails 112 are aligned with the third penetrations 134 of the top platform 108. The plurality of fasteners 142 are then installed and secured. Next, the second penetrations 122 in the top ends 118 are aligned with the fourth penetrations 140 in the safety hand rails 119. Thereafter, the plurality of fasteners 142 are then installed and secured. The second ladder section 106 is then positioned within the large capacity, out-of-doors, above-the-ground swimming pool 102 and the first ladder section 104 is positioned on the ground side external to the swimming pool 102. The swimming pool ladder 100 is now ready for use. Reversing the order of this procedure enables the swimming pool ladder 100 to be disassembled.
(39) The present invention provides novel advantages over other swimming pool ladders known in the prior art. A main advantage of the swimming pool ladder 100 for use with large capacity, out-of-doors swimming pools 102 of the present invention is that it comprises a simple yet robust design particularly in relation to attaching the rungs 148 to the corresponding rung anchors 146. Further, the swimming pool ladder 100 is easy and time efficient to assembly and disassemble, is lightweight and transportable, and is easily stored in a small space. Additionally, once assembled, there are no sharp edges or corners to cause injury to children in a swimming pool environment. The design of the swimming pool ladder 100 of the present invention enables adults as well as children to enter and exit the swimming pool 102 in a convenient and safe manner. Further, the ladder design of the present invention eliminates many of the articulated and mechanical components present in prior art pool ladders which made assembly, use and disassembly difficult and inconvenient.
(40) While the present invention is described herein with reference to illustrative embodiments for particular applications, it should be understood that the invention is not limited thereto. Those having ordinary skill in the art and access to the teachings provided herein will recognize additional modifications, applications and embodiments within the scope thereof and additional fields in which the present invention would be of significant utility.
(41) It is therefore intended by the appended claims to cover any and all such modifications, applications and embodiments within the scope of the present invention.