JPH0212931Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to a fake Christmas tree branch structure made of synthetic resin that can be assembled and disassembled.

[Background of the idea]

Christmas trees are widely used as a typical Christmas decoration, but recently synthetic resin Christmas trees have become popular in homes as they can be easily decorated. . Furthermore, many of these synthetic resin Christmas trees are now on the market with structures that can be easily disassembled and reassembled in order to make storage easier. The structure includes a trunk, a main branch member that is detachably attached to the trunk, and a twig member that is detachably attached to the main branch member, and the trunk and the main branch member, and the main branch member and the twigs. The members are removably connected by means of an insertion fit between the shaft hole and the shaft so that the Christmas tree can be assembled.

However, with the above-mentioned member insertion/fitting means, if the member is repeatedly assembled and disassembled, the fitting force may become loose and assembly becomes impossible, or if the member is fitted with force, the shaft hole of the member may become loose. Problems have occurred, such as cracks forming in the connectors, making it impossible to fit them together. Furthermore, in the case of the conventional type, since the strength of the resin is low, the trunk and main branch members have no stiffness, and there are also problems in terms of strength and quality.

[Purpose of invention]

The present invention was devised in view of such problems, and its first purpose is to improve the durability of the fitting portion of the member. Furthermore, a second object of the present invention is to provide a prefabricated resin Christmas tree branch structure with high erecting strength, particularly by increasing the strength of the main branch members that are erected on the trunk.

[Example of idea]

The present invention will be explained in detail below based on embodiments shown in the drawings.

Reference numeral 1 denotes a base such as a branch body or a pot body, and a relatively short trunk member 2 is integrally formed in an upright state on this base 1 of the branch body or pot body. For example, 6
A rectangular hole 3 with a bottom and a square hole 3 formed above the square hole 3 and larger than the outer diameter of the square hole 3,
A branch member insertion hole 4 is formed coaxially with the three axes of the square hole. Reference numeral 5 denotes a main branch member, which is a synthetic resin product with a wire-like iron core 6 embedded on the central axis,
At the lower end of this main branch member 5, there is a hexagonal square shaft part 7 that is tightly fitted into the square hole 3 formed in the main body 2, and next to this square shaft part 7, there is a branch member insertion hole 4. An insertion portion 8 is formed to be fitted into the insertion portion 8, and a number of ribs 9 are integrally formed in the axial direction of the circumferential surface of the insertion portion 8 to bring it into close contact with the inner circumferential surface of the branch member insertion hole 4. It is something that In addition, a large number of twig connecting portions 10 are protruded randomly in the middle of the main branch member 5, and furthermore, at the tip of the main branch member 5,
A twig connecting portion 10 is integrally formed with a ring-shaped reinforcing portion 11 interposed therebetween. A plurality of locking step portions 13 are integrally formed at the tip of each of the twig connecting portions 10 to ensure engagement and retention with the twig member 12. An insertion hole 14 is formed at one end of the twig member 12, into which the tip of the twig connection part is inserted, and the outer peripheral surface corresponding to the insertion hole 14 is made to prevent the insertion hole 14 from cracking. A reinforcing protrusion 15 is integrally formed in a honeycomb shape. Further, a large number of imitation leaves 16 are integrally formed on the other part of this twig member 12.

The above is the structure of the branch structure members of the assembled resin Christmas tree according to this embodiment. Next, the assembly operation of these members will be described. Although each of these members can be disassembled and stored, when assembling these members, insert the main branch member 5 into the branch member insertion hole 4 and square hole 3 formed in the trunk member 2.
The main branch member 5 is connected to the trunk member 2 in an upright state by fitting the lower end part, that is, the insertion part 8 and the square shaft part 7, and then the twig member 12 is connected to each twig connecting part 10 of the main branch member 5. By fitting into the insertion holes 14, the Christmas tree branch body is assembled.

At the fitting portion between the trunk member 2 and the main branch member 5, the main branch member 5 is rotated relative to the trunk member 2 due to the fitting action between the square hole 3 and the square shaft portion 7. Since there is no such thing, there is an advantage that the set direction of the main branch member 5 can be stably maintained. Furthermore, since anti-slip ribs 9 are formed on the outer circumferential surface of the insertion portion 8 of the main branch member 5, the insertion fit between the insertion portion 8 and the branch member insertion hole 4 is improved by the ribs 9. As a result, there is an advantage that the main branch member 5 cannot easily come off from the trunk member 2.
Next, when connecting the twig connecting part 10 and the twig member 12, the engagement friction force between the twig member 12 and the insertion hole 14 is increased due to the action of the locking step part 13 on the twig connecting part 10, so that the twig There is an advantage that the member 12 is not easily pulled out. Furthermore, since the reinforcing protrusion 15 is integrally formed around the outer circumference of the insertion hole 14 of the twig member 12, the strength around this insertion hole 14 is increased, and as a result, the twig member 12 can be attached to the twig connecting portion 10. Even if the insertion hole 14 is inserted with some force, damage such as cracking of the insertion hole 14 can be prevented. In addition, since the iron core 6 is installed in the inner core of the main branch member, the strength and
In other words, it becomes a strong main branch member, and since the annular reinforcement part 11 is integrally formed at the tip of the main branch member 5, the twig member attached to the tip of the main branch member 5 can be stably held. There are some effects that can be guaranteed.

[Summary of the idea]

As described above, in the present invention, a square hole 3 and a branch member insertion hole 4 having an inner diameter larger than the hole diameter of this square hole 3 are coaxially formed at the upper end, and the lower end is attached to the base of the branch body or the pot body. A trunk body 2 attached to a stand 1, a square shaft part 7 fitted tightly into the square hole 3 at the lower end, and a large number of anti-slip ribs 9 fitted into the branch member insertion hole 4 and around the periphery. Further, a twig connecting part 10 is provided at the upper end via a reinforcing part 11, and a large number of twig connecting parts 10 are protruded between the upper and lower ends thereof, and an inner core part 8 is formed. A main branch member 5 having an iron core 6 embedded therein, an insertion hole 14 fitted into the tip of the twig connection part 10, and a reinforcing protrusion 1 for preventing cracking on the outer peripheral surface of the insertion hole 14.
5 and a twig member 12 integrally formed with a large number of imitation leaves 16, and the distal end of the twig connecting portion 10 has a locking force for engaging the insertion hole 14 of the twig member. This is an assembly type synthetic resin Christmas tree branch structure characterized by forming a locking stepped portion 13 for raising the tree.

[Effect of idea]

Therefore, according to the branch body structure of this prefabricated synthetic resin Christmas tree, the fitting force between the square hole 3 and the square shaft part 7 and the fitting force between the branch member insertion hole 4 and the insertion part provided with the rib 9 , the main branch member 5 has the effect of being reliably connected to the trunk member 2 without rotating or coming off. Further, the twig member 12 has a locking step 1 formed at the twig connecting portion 10 of the main branch member 5.
3, it is possible to securely connect and hold the twig member 12 without loosening and prevent the twig member 12 from falling off.
The strength of the connecting portion is ensured by the action of the protruding portion 15, and the durability is improved. In addition, since the iron core 6 is embedded in the inner core of the main branch member 5, the strength of the main branch member 5 is strengthened, and the reinforcing part 11 provided at the upper end of the main branch member 5 allows a large number of Even if the twig member 12 is connected to the main branch member 5, it is possible to provide a tree with excellent shape retention that can sufficiently withstand the weight of the twig member 12.

[Brief explanation of the drawing]

The drawings all show embodiments of the present invention, and Fig. 1 is an overall view of the branch structure of an assembled prefabricated Christmas tree, Fig. 2 is an explanatory drawing showing the main part configuration, and Fig. 3 is A. - A sectional view, and FIG. 4 is a sectional view of the insertion portion and the rib portion. 1... base such as branch body or pot body, 2... trunk,
3... Square hole, 4... Branch member insertion hole, 5... Main branch member, 6... Iron core, 7... Square shaft part, 8... Insertion part,
9... Rib, 10... Twig connection portion, 11... Reinforcement portion, 12... Twig member, 13... Locking step portion, 14
...insertion hole, 15...reinforcing protrusion, 16...imitation leaf.

Claims (1)

[Scope of utility model registration request] A square hole 3 and a branch member insertion hole 4 having an inner diameter larger than the hole diameter of this square hole 3 are coaxially formed at the upper end, and the lower end is a stem attached to the base 1 such as a branch body or a pot body. A body 2, a square shaft part 7 which is tightly fitted into the square hole 3 at the lower end, and an insertion part 8 which is fitted into the branch member insertion hole 4 and has a large number of anti-slip ribs 9 formed around it. Further, a twig connecting part 10 is provided at the upper end via a reinforcing part 11, and a large number of twig connecting parts 10 are provided protruding between the upper and lower ends thereof, and an iron core 6 is buried in the inner core part. A main branch member 5, an insertion hole 14 that fits into the tip of the twig connecting portion 10, a reinforcing ridge 15 for preventing cracking on the outer peripheral surface of the insertion hole 14, and a large number of imitations. It has a twig member 12 integrally formed with a leaf 16, and further includes the twig connecting portion 1 described above.
A branch body structure of a prefabricated synthetic resin Christmas tree, characterized in that a locking stepped portion 13 is formed at the tip of the twig member for increasing the locking force with the insertion hole 14 of the twig member.