Abstract: Clambering device having a number of blocks defined by at least four geometrical surfaces, of which surfaces at least three have normals of which one is at an angle to the surface in which the other two are situated, wherein means for mutual coupling of the blocks are provided at those surfaces. The geometrical surfaces may be substantially flat, identical to each other in shape, or particularly congruent to each other.

Abstract: A playground system includes a playground appliance and a processing unit. The processing unit is adapted to receive a sensor signal from the sensor indicative of the detected movement, and to control the display to indicate a user-selection responsive to the received sensor signal.

Abstract: Playground equipment comprising a revolving ring for standing or sitting on is according to the invention composed of ring segments (1) which are connected by means of connecting pieces (2) for forming a closed ring. The revolving ring is mounted somewhat above the base by means of legs (3) and by adapting the length of the legs, an inclined revolving plane may be obtained. The structure itself comprises a stationary ring (5, 6) on which a revolving ring (4) provided with wheels or rolls (9, 10) may roll. The revolving ring (1) fits tightly about the stationary part of the playground equipment and it is not possible to separate the parts apart once the playground equipment has been assembled and held together by means of locking rings (12).

Abstract: In order to make it easier to mount for instance playground equipment comprising a tube construction which is anchored to a base the subject invention offers a simplification by incorporating a means to facilitate the longitudinal adjustment of the grooves in relation to the base. This means comprises a tube piece (2) extending in the tube (1), which tube piece is anchored to the base and which is configured with longitudinal folds for the formation of outwardly open channels (4). In these channels (4) a wedge element (3) is inserted which by means of bolts (6) through the tube (1) can tighten the wedge and due to the cross sectional shape of the grooves cause the tube piece (2) to expand so that it squeezes against the inside of the tube (1). In this manner the tube (1) can be adjusted in the longitudinal direction in connection with both the mounting and the subsequent adjustment.

Abstract: To stimulate and engage children, especially older children, playground equipment is disclosed which provides a suitable challenge, by consisting of three columns which are arranged in a triangular cross-sectional form which tapers inwardly. The columns are assembled with connection tubes at the top and possibly also further down to provide a stable and very strong construction which supports various accessories elements such as ropes, climbing walls, cross-beams, etc. A spherical assembly bracket with through holes is mounted on a column and used in the assembly and suspension of the accessory elements.

Abstract: A recreational appliance with springs (1) is provided with a locking element (2-9) which can be inserted in an anchoring element with a receiving flange (4), whereby a recreational appliance can be locked to the fundament in such a manner that it can be removed after it has been unlocked. The lock is preferably configured to have two lock plates (5) which engage bolt retaining edges (15) in the flange (4), which is provided with a recess (14) in which the locking element (2-9) is inserted. A recreational appliance can then function in the same way as an ordinary permanently ground anchored appliance, but the locking element makes it possible to remove the appliance after it has been unlocked, for area maintenance or repairs, or to avoid damage to the recreational appliance.

Abstract: In order to stabilize a timber bolt joint against coming loose when the timber shrinks the bolt hole in the timber element is made with oversize and a bushing of Nylon is inserted with tight fit in the hole, the bushing having substantially the same length as the hole. When the bolt nut is tightened it is primarily the bushing, which is clamped, and thereafter the stability of the joint will be safeguarded even if or when the timber shrinks.