Fastening construction for playground equipment

Details Fastening construction for playground equipment Fastening construction for playground equipment

1975-02-10

1976-07-20

Purser, Ernest R.

Static structures (e.g., buildings)

Machine or implement

272109, 403195, E04C 330, A63B 1704

Patent

active

039698718

ABSTRACT:
A basic unit of construction for use in playground equipment and the like, in which timbers are to be interconnected with tubes of smaller diameter. Each timber is cross bored and counter bored at each side to give recesses with substantially flat and parallel bottoms, and beneficial compression is applied to the posts by means which may also serve to grip the tubes, and which are sized to fit the bottoms of the recesses rather than the cross bores, thus improving the transfer of force from the tube to the timber and minimizing any splitting effect exercised on the timbers. The invention includes a special fitting for applying this principle where timbers are to be connected directly to one another either in parallel or in orthogonal relationship.

REFERENCES:
patent: 2035488 (1936-03-01), McArthur
patent: 2035489 (1936-03-01), McArthur
patent: 2242427 (1941-05-01), Heanue
patent: 2874812 (1959-02-01), Clevett
patent: 3814416 (1974-06-01), Munger et al.

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