JPH0324400Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention is a decoration in which an internal hollow part expands by blowing gas, and this hollow part is surrounded by several external externally independent hollow parts. Regarding improvement of spheres for use.

(Prior Art) The present applicant previously filed an application for publication in 1982, in which one decorative sphere was constructed integrally with an inner hollow part and a plurality of outer hollow parts surrounding the inner hollow part from the outside.
Known from number 185500. This is done by forming a bag shape using two pieces of rubber or other airtight information boards, or by forming a hollow bag shape in advance, and then gluing the left and right edges of this bag in order to form a sphere or balloon shape. Another hollow bag is fixed to the inside of the sphere, and the outer hollow part is inflated by the hollow bag and the ventilation part using the blow plug from the outside provided in the hollow bag. It is expanded by injecting it through the plug. Due to this structure, the structure of the internal hollow part and the external hollow part is complicated, and there is room for improvement in this point.There is also room for improvement in the airtightness of unnecessary hollow parts and blow plugs, as well as the adhesive part. There is.

(Problems to be Solved by the Invention) In view of the above-mentioned circumstances, the present invention aims to simplify the structure of a decorative sphere that is integrated with an internal hollow part and a plurality of external hollow parts, and to improve airtightness.

(Structure of the invention) In order to achieve the above object, the present invention has two airtight elastic sheets, one on the front and the other on the back. On the outer peripheral surface of the hollow part, a plurality of external hollow parts each partitioned by a top sheet with a high expansion rate bonded to the back sheet at the periphery form an integral sphere or balloon-like body, and the sphere has an internal hollow part. It is characterized by being a decorative sphere equipped with a single communicating blow tap and internal and external hollow vents.

With this configuration, when the decorative sphere is injected with gas through the blow plug, the internal hollow part is directly expanded, and the external hollow part is expanded through each ventilation part.
Furthermore, the outer hollow portion can be easily expanded and the outer surface can be largely bulged out, thereby making it possible to clearly distinguish the unevenness of each bulging portion.

Hereinafter, the drawings showing the embodiments of the present invention will be described. FIG. 1 is a front view of a balloon-like sphere A with a container B attached to the lower end, and the sphere A has an upper end with a blowing plug 1 in the center. A bag-shaped aggregate of front and back sheets is adhered to the plug-forming part and the bottom part so as to form a predetermined circumference between the plug-forming surface part 2 and the bottom plate 3 at the lower end, thereby forming an internal hollow part separated from the outside. 4 and the external hollow part 5... with a plurality of external hollow parts 5,
5a... has a large number of bulges on the outer peripheral surface. The internal hollow part 4 is surrounded by the collective surface of the back sheets 6, 6a, which are the constituent parts of the external hollow parts 5, 5a, and so on.
6a... and surface sheets 7, 7a... having the same shape and attached to the circumferential surface, and a plurality of bag-like shapes formed by these front and back sheets are assembled to form a plurality of external hollow parts 5,
5a... are formed to enclose the internal hollow part 4.
Top sheets 7, 7a... and back sheets 6, 6a...
is a rubber or other airtight elastic sheet made of substantially the same shape, wide at the center, and narrower toward the upper and lower ends. Further, these sheets have different expansion coefficients, and the top sheets 7, 7a, . . . have a high expansion coefficient, and the back sheets 6, 6a, . . . have a small expansion coefficient, respectively. Furthermore, the topsheets 7, 7a... may be arbitrarily colored in different colors.

Top sheets 7, 7a... and back sheets 6, 6a
A plurality of external hollow portions 5, 5a, etc. for the sphere A are formed by aligning the front and back sides and bonding their outer peripheral edges to form a bag shape. Ventilation portions 8 are provided in the back sheets 6, 6a. The upper end of each bag-shaped bag having the ventilation portion 8 is adhered to the outer periphery of the plug forming part 2, and the lower end is adhered to the outer periphery of the bottom plate 3, and the outer periphery of the adjacent bag-shaped bags is adhered to form the sphere A. A hollow portion 4 is enclosed inside the hollow portion 4, and external hollow portions 5, 5a, . . . are formed outside the hollow portion 4. The bottom plate 3 is housed inside with a hard plate 3a serving as a core.

As shown in the vertical cross-sectional view of FIG. 2 and the cross-sectional view of FIG. ... to form respective bulges on the outer surface of the sphere A using the top sheet. In this case, the back sheets 6, 6a... have a small expansion coefficient, so the outward bulge is small and the circumference of the internal hollow body 4 is formed along one circumference, and the top sheets 7, 7a have a high expansion coefficient. ... swells outward to form a significantly uneven outer surface.

(Effects) As described above, this invention uses one blow tap to
Since the sphere A having an outer hollow part can be formed, it is easy to handle, and since the inner and outer hollow parts of the sphere are formed by the bag-like shape of two sheets on the front and back sides, the structure is simple. Since the upper and lower ends are directly bonded to the plug forming part and the bottom plate, sufficient airtightness can be achieved, especially preventing leakage from the outer periphery of the bottom plate, and the front and back sheets with different expansion coefficients can stably form a large internal hollow part. At the same time, a large dent is created between the outer circumferential surface of this inner hollow part and the adjacent bulging part to clearly create a large bulging part, which is eye-catching as it expresses independence in appearance as well as a difference in color. It has the characteristic of forming spheres with easy decorative effects.

[Brief explanation of drawings]

FIG. 1 is a front view, FIG. 2 is a longitudinal cross-sectional view, and FIG. 3 is a cross-sectional view. A... Sphere, B... Container, 1... Shot plug, 2...
... Plug forming part, 3 ... Bottom plate, 4 ... Internal hollow part,
5,5a~5k...External hollow part, 6,6a~6k
... Back sheet, 7,7a-7k ... Top sheet, 8 ... Ventilation section.

Claims (1)

[Scope of utility model registration request] Among other airtight elastic sheets, such as rubber whose width is wide in the center and narrows toward both ends, two front and back sheets are used: top sheets 7, 7a, which have a large expansion coefficient, and back sheets 6, 6a, which have the same small expansion coefficient. It is formed into a bag shape, and the upper end of the bag shape is adhered to the plug forming part 2, the lower end is adhered to the bottom plate 3, and the outer periphery is successively adhered to form one internal hollow sectioned by back sheets 6, 6a, . . . part 4 and several external hollow parts 5, 5a, which are divided by bag-like front and back sheets on the outside of this hollow part 4, form one spherical body A, a balloon-shaped body, and the spherical body A. Internal hollow part 4 in plug forming part 2
A vent 8 is provided on the back sheet 6 that partitions the inner hollow part 4 and the outer hollow part 5.
A decorative sphere consisting of.