초록 ▼

The invention regards a releasable fastening device for an object (40) that in the fastening area for a base (10) is bar-shaped and has a cross section with a round or non-round peripheral shape, e.g. a Christmas tree. When fastening, the object (40) is inserted into an opening (18) between one or s

The invention regards a releasable fastening device for an object (40) that in the fastening area for a base (10) is bar-shaped and has a cross section with a round or non-round peripheral shape, e.g. a Christmas tree. When fastening, the object (40) is inserted into an opening (18) between one or several resilient clamping parts (34) that are equipped with e.g. teeth or barbs against the object (40), and further into a centring point (20) at the lower end of the opening (18). The clamping part(s) (34) are rotatably or non-rotatably attached to the periphery of an annular element (28), and each clamping part is preferably rotatable or resilient in the radial direction of the opening (18). In the opening (18), the annular element (28) abuts a preferably circular and horizontal abutment surface (26) in the wall (24) of the opening (18). When releasing, the object (40) is rotated about the longitudinal axis of the opening (18) until the clamping part(s) (34) align with the corresponding recess(es) or enlarged portion(s) (22) of the wall (24). By so doing, the clamping part(s) (34) are released from the object (40) and fall outwards through the recess(es) or the enlarged portion(s) (22), and the object (40) may be removed.

대표청구항 ▼

1. A releasable fastening device for an object (40), the fastening area of which is bar-shaped and has a cross section with a round or non-round peripheral shape, characterized in that the fastening device constitutes a separate annular element (28) arranged in a base (10) provided with an inside op

1. A releasable fastening device for an object (40), the fastening area of which is bar-shaped and has a cross section with a round or non-round peripheral shape, characterized in that the fastening device constitutes a separate annular element (28) arranged in a base (10) provided with an inside opening (18) and a surrounding wall (24), where the wall (24) is equipped with one or several recesses or enlarged portions (22) in the wall, and where the inside of the wall (24) is designed with a preferably circular and horizontal abutment surface (26), on which abutment surface (26) is placed the annular element (28), the annular element (28) being rotatably arranged in the opening (18), preferably by the annular element (28) being rotatable about the centreline of the opening (18), and where one or several clamping parts (34) are attached along the periphery of the annular element (28), the number and mutual angular spacing of which clamping parts (34) coincide with the one or several recesses or enlarged portions (22) of the wall (24), and where each clamping part (34) is rotatable or resilient in the radial direction of the opening (18), each clamping part (34) being equipped with a nose part (46) that projects inwardly towards the centre of the opening (18). 2. The releasable fastening device according to claim 1, characterized in that the opening (18) is preferably cylindrical or conical. 3. Releasable fastening device according to claim 2, characterized in that a centring device such as a centring point (20) is placed below the annular element (28), possibly at the bottom of the opening (18). 4. Releasable fastening device according to claim 1, characterized in that the annular element (28) is locked to the base (10) in the longitudinal direction of the opening (18). 5. Releasable fastening device according to claim 1, characterized in that each clamping part (34) is provided with an integrally cast or affixed external abutment surface lug (42). 6. Releasable fastening device according to claim 1, characterized in that each clamping part (34) comprised in part or wholly of a resilient portion (44). 7. Releasable fastening device according to claim 1, characterized in that, said one or several clamping parts (34) may be rotatably or non-rotatably attached to the annular element (28). 8. Releasable fastening device according to claim 1, characterized in that a nose part (46) at the free end of said one or several clamping parts (34) is preferably formed with points, teeth, barbs or similar formations. 9. Releasable fastening device according to claim 1, characterized in that a centring device such as a centring point (20) is placed below the annular element (28), possibly at the bottom of the opening (18).