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Climbing wall
| Details |
Inventors: Jonas, Kenneth J.; Grutza, Randall C.; Bolland, Matthew T.;
Assignee: PlayCore Wisconsin, Inc. (Chattanooga, TN)
Primary Examiner: Donnelly; Jerome W.
Assistant Examiner:
Attorney, Agent or Firm: Lathrop & Clark LLP
A truncated triangular inclined climbing wall is attached to a wooden play structure, and is tilted at about a forty-eight degree angle against the play structure, and is fastened by a flange to an elevated deck which is accessible through a wood framed inlet. The climbing wall is staked to the ground, and narrows from a wide, ground-engaging, base, to a narrower summit, which is immediately adjacent the framed inlet. The climbing wall is formed with a number of rock-simulative ledges, which progress from the base to the summit. Each molded ledge preferably has a child-graspable hand grip integrally molded in the riser. The top surfaces of the step-like ledges define treads which are inclined from the horizontal to direct the child's foot inward toward the climbing wall rather than away from the wall and off the structure. To contribute to the rock-simulative visual effect of the thermoformed plastic assembly, polyethylene is extruded with a pattern of streaks or striations which, when molded, simulate the color variations of naturally occurring rock formations. The hypotenuse of the triangle provides both a climbing surface and a means for directing climbing children to the inlet. |
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DETAILED DESCRIPTION The play structure climbing wall of this invention is economically produced by the single sheet thermoforming process.
To facilitate shipping, the wall is formed in multiple elongated segments which are bolted together when attached to the wooden play structure.
The climbing wall is tilted at about a forty-eight degree angle against the play structure, and is fastened by a flange to an elevated deck which is accessible through a wood framed inlet.
The climbing wall is staked to the ground, and narrows from a wide ground-engaging base, to a narrower summit, which is immediately adjacent the framed inlet.
The climbing wall is formed with a number of rock-simulative ledges, which progress from the base to the summit.
Each molded ledge preferably has a child-graspable hand grip integrally molded in the riser.
The top surfaces of the step-like ledges form treads which are inclined from the horizontal to direct the child's foot inward toward the climbing wall rather than away from the wall and off the structure.
To contribute to the rock-simulative visual effect of the thermoformed plastic assembly, polyethylene is extruded with a pattern of streaks or striations which, when molded, simulate the color variations of naturally occurring rock formations.
The climbing wall has two side-by-side upper segments which can be mounted to a play structure with a low deck.
For taller decks, a single base segment is mounted below the two upper segments.
The three segment assembly is shaped generally like a truncated right triangle, with the hypotenuse of the triangle providing both a climbing surface, and a means for directing climbing children to the inlet.
It is an object of the present invention to provide a climbing wall for a play structure which can be manufactured economically.
It is another object of the present invention to provide a climbing wall for a play structure which can be shipped knocked down in a size less than the final assembly size.
It is a further object of the present invention to provide a climbing wall for a play structure which has visible surface markings which simulate natural patterns
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