Method for joining and interlocking an artificial tree and its erection pot
The invention relates to a method for providing an evergreen silk tree comprised of a trunk and branches with leaves attached to it or other artificial tree with an erection ball, and for providing an erection hollow corresponding to the erection ball in the erection pot of the tree, in order to join and interlock the tree provided with the said erection ball and the erection pot provided with the said erection hollow.
The aim of the invention is to achieve a simple and easily implemented method for providing an evergreen silk tree or other artificial tree with an erection ball and for providing an erection hollow corresponding to the erection ball in the erection pot of the tree.
To achieve this aim, the method relating to the invention is characterised in that no less than two, at least dimensionally identical, conical mould dishes are selected, which can be fitted within each other,
that the lower end of the trunk of the said tree is fitted in the first mould dish and hardening mass is cast in the mould dish for joining the tree and the mould dish together,
that a rigid piece corresponding to the second mould dish in external dimensions, or more preferably the second mould dish, inside which the hardened mass is, is fitted within a third mould dish, the second and third mould dishes are placed in the erection pot at the desired depth, and the hardening mass is cast in the erection pot, and
that once the mass cast in the erection pot has hardened, the second mould dish is removed from inside the third mould dish, after which also the third mould dish can be removed if so desired.
Due to this arrangement, especially the preparation of the erection hollow made in the erection pot is substantially facilitated.
Further preferable developments of the invention are disclosed in the dependent claims.
The invention is described in greater detail in the following, with reference to the appended drawings, in which
Figure 1A shows a tree provided with an erection ball and an erection pot provided with an erection hollow before they are joined together.
Figure IB shows a tree provided with an erection ball and an erection pot provided with an erection hollow when joined and interlocked.
Figure 2A shows the parts used in the method relating to the invention in cross-section before fitting in the erection pot.
Figure 2B shows the parts shown in Figure 2A when fitted in the erection pot and cast in place.
Figure 1A shows an evergreen silk tree or other artificial tree, marked generally with reference numeral 3, which is comprised of a trunk 1 and branches with leaves 2 attached to it. The tree 3 is provided with an erection ball marked generally with reference numeral 4. The erection pot 6, in which the tree 3 with its erection ball is intended to be erected, has an erection hollow 5 corresponding to the erection ball 4, in order to join together the tree 3 provided with an erection ball 4 and the erection pot 6.
The procedure for achieving this arrangement appearing in Figures 1A and IB is as follows.
Two, or most preferably three, at least dimensionally identical, conical mould dishes 7, 8, 9 are selected, which can be fitted within each other.
In the first mould dish 7 (Figure 1A) is fitted the lower end of the said tree 3 trunk 1 and hardening mass 10, for example, concrete is cast in the mould dish 7 for joining the tree 3 and the mould dish 7 together.
In the second mould dish 8 (Figure 2A) is cast hardening mass 11, for example concrete mass, and it is provided with a lifting handle 14. Once the mass 11 has hardened, the mould dish 8 with its hardened mass is fitted within a third mould dish 9 and placed together with the erection pot 6 at the desired depth. After this the hardening mass 12, for example concrete, is cast in the erection pot 6 (Figure 2B). In order not to increase the weight of the erection pot 6 unnecessarily, at the bottom of the erection pot 6 is, before casting the hardening mass 12, arranged a suitable filler layer 15, and on top of it, for example, pieces of cellular plastic 16 to maintain the overall weight of the erection pot 6 within the desired limits.
Once the mass 12 cast in the erection pot 6 has hardened, the second mould dish 8 is removed from inside the third mould dish 9, which is done simply by lifting by the handle 14 of the mould dish 8. After this, the third mould dish 9 can be removed, if so desired. When a dish made of resilient material is used as the mould dish 9, the walls of the mould dish 9 can easily be bent inwards, whereby the mould dish 9 detaches from the hardened mass 12.
As mould dishes 7, 8, 9 are most preferably used identical mould dishes and especially such mould dishes in which the side wall of the mould dish is made
of material of uniform thickness, whereby the mould dishes can be fitted tightly within each other.
The mould dish 8 containing the hardened mass 11 can be used several times. The mould dish 8 and the hardening mass 11 may obviously also be replaced by a piece made of any suitably rigid material, which corresponds in external dimensions to the mould dish 8. This type of piece is, however, more difficult to make than the mould dish 8 filled with hardening mass 11. The mould dish 9 can also be reused, if it is successfully removed intact from the erection pot 6.
It is most convenient to leave the mould dish 7 in place after the mass 10 has been cast in the mould dish 7 for joining the trunk 1 and the mould dish 7 together. The amount of mass 10 in the mould dish 7 should be selected in such a way that when the erection ball 4 is in place in the erection pot 6 (Figure 1 B), the upper surfaces of the masses 10 and 12 are essentially on the same level. Any part remaining above the mass 10 in the mould dish 7 is easy to cut off.
The erection ball 4 and the erection pot 6 can be interlocked by screwing at least one screw 13 (Figure 1 B) in the seam between the side wall of the erection ball 4 and the erection hollow 5 of the erection pot 6.