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US 6,302,824 B1Granted
Playground appliance
AssigneeInterplay Design & Manufacturing, Inc
InventorsCharles Richard MacAdam, Toshiko Horiuchi MacAdam, Norihide Imagawa
Life of this patent
Estimating the term…
Abstract
A playground appliance comprising a plurality of support members from which are suspended net units to form a non-planar playing surface that children can climb. The support members include vertical posts supported on the ground by anchoring devices. Each anchoring device includes a ground engaging support plate having a surface substantially exceeding a transverse dimension of the vertical post. Ground penetrating spike members are driven through the support plate to stabilize the post. The assembly is easy to erect and can sustain heavy loading without collapsing.
Claims13
A playground appliance, comprising:
- (a) a first supporting member for securement on the ground, including an elongate post having an end portion and an anchoring device for supporting said elongate post in a generally vertical position, said anchoring device including:
- i) a ground engaging support plate mounted at said end portion, said ground engaging support plate having a surface area substantially exceeding a cross-sectional area of said end portion;
- and
- ii) a plurality of ground penetrating fastener members, each said fastener members including a fastener head engaging said ground engaging support plate when the fastener member is driven in the ground, thereby stabilizing said ground engaging support plate and said elongate post;
- (b) a second supporting member for securement on the ground in a position remote from said first supporting member, said second supporting member including an elongate post having an end portion and an anchoring device for supporting the elongate post of said second supporting member in a generally vertical position and in a position remote from the elongate post of said first supporting member, the anchoring device of said second supporting member including:
- i) a ground engaging support plate mounted at said end portion of the elongate post of said second supporting member, the ground engaging support plate of the elongate post of said second supporting member having a surface area substantially exceeding a cross-sectional area of said end portion of the elongate post of said second supporting member;
- and
- ii) a plurality of ground penetrating fastener members, each said fastener members including a fastener head engaging the ground engaging support plate of the elongate post of said second supporting member when the fastener member is driven in the ground, thereby stabilizing the ground engaging support plate and the elongate post of said second supporting member;
- (c) a flexible sheet-like membrane capable of being suspended from said supporting members to provide a playing surface at a distance above the ground.
6 more elements
A playground appliance comprising:
- (a) first supporting member for securement on the ground, including an elongate post having an end portion and an anchoring device for supporting said elongate post in a generally vertical position, said anchoring device including:
- i) a ground engaging support plate mounted at said end portion, said ground engaging support plate having a surface area substantially exceeding a cross-sectional area of said end portion;
- ii) a plurality of ground penetrating screw anchors, each said screw anchors including a head engaging said ground engaging support plate when the screw anchor is driven in the ground, thereby stabilizing said ground engaging support plate and said elongate post;
- and
- iii) a receptacle capable of receiving and restraining said elongate post, said receptacle being rigidly mounted to said ground engaging support plate;
- (b) a second supporting member for securement on the ground in a position remote from said first supporting member, said second supporting member including an elongate post having an end portion and an anchoring device for supporting the elongate post of said second supporting member in a generally vertical position and in a position remote from the elongate post of said first supporting member, the anchoring device of said second supporting member including:
- i) a ground engaging support plate mounted at said end portion of the elongate post of said second supporting member, the ground engaging support plate of the elongate post of said second supporting member having a surface area substantially exceeding a cross-sectional area of said end portion of the elongate post of said second supporting member;
- ii) a plurality of ground penetrating screw anchors, each said screw anchors including a head engaging the ground engaging support plate of the elongate post of said second support member when the screw anchor is driven in the ground, thereby stabilizing the ground engaging support plate and the elongate post of said second supporting member;
- and
- iii) a receptacle capable of receiving and restraining the elongate post of said second support member, said receptacle being rigidly mounted to the ground engaging support plate of the elongate post of said second supporting member;
- (c) a flexible sheet-like membrane capable of being suspended from said supporting members to provide a playing surface at a distance above the ground.
8 more elements
A playground appliance comprising:
- (a) first supporting member secured on the ground in a generally vertical position, including an elongate post having an end portion and an anchoring device supporting said elongate post in a generally vertical position on the ground, said anchoring device including:
- i) a ground engaging support plate mounted at said end portion, said ground engaging support plate having a surface area substantially exceeding a cross-sectional area of said end portion;
- and
- ii) a plurality of ground penetrating fastener members driven in the ground, each said fastener members including a fastener head engaging said ground engaging support plate, thereby stabilizing said ground engaging support plate and said elongate post;
- iii) a layer of sand covering said ground engaging support plate to further stabilize said first supporting member on the ground;
- (b) a second supporting member secured on the ground in a generally vertical position and in a position remote from said first supporting member, said second supporting member including an elongate post having an end portion and an anchoring device supporting the elongate post of said second supporting member on the ground in a generally vertical position and in a position remote from the elongate post of said first supporting member, the anchoring device of said second supporting member including:
- i) a ground engaging support plate mounted at said end portion of the elongate post of said second supporting member, the ground engaging support plate of the elongate post of said second supporting member having a surface area substantially exceeding a cross-sectional area of said end portion of the elongate post of said second supporting member;
- and
- ii) a plurality of ground penetrating fastener members driven in the ground, each fastener member of said second supporting member including a fastener head engaging the ground engaging support plate of said second supporting member, thereby stabilizing the ground engaging support plate of said second supporting member and the elongate post of said second supporting member;
- iii) a layer of sand covering the ground engaging support plate of said second supporting member for further stabilizing said second supporting member on the ground;
- (c) a flexible sheet-like membrane capable of being suspended from said supporting members to provide a playing surface at a distance above the ground.
8 more elements
Dependencies are inferred from the claim text.