JPH042716Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a block toy that can be assembled and disassembled for play by connecting a fitting boss portion and a fitting hole portion.

[Conventional technology]

This type of block toy is generally molded by blow molding.

[The problem that the idea aims to solve]

However, this blow molding has the following drawbacks. First, if the shape of the block toy becomes complicated, the resin such as polyethylene cannot be sufficiently circulated, making it impossible to make the wall thickness of the block toy uniform, and holes may form in some places.
Further, secondary processing such as deburring is troublesome.

Therefore, the present applicant previously filed an application for a block toy made by injection molding (Utility Application No. 1983-29212), which improved the drawbacks of the above-mentioned block toy made by blow molding.

This block toy consists of two halves that form a hollow block when put together,
The fitting boss portion is provided with a pipe body for a fitting hole portion into which the fitting boss portion is removably fitted. The half-block body is molded by injection molding, and has a fitting protrusion and a fitting hole on the joint end face, and a through hole into which the pipe body is inserted is provided in a direction perpendicular to the joint end face, and the through hole A cylindrical wall into which the tube body is inserted extends inward from the edge of the tube. The tubular body is formed by injection molding, has a locking part that locks on the outer edge of the through hole of the half block body at both ends, and is split into two parts in the middle part in a direction crossing the axial direction. Part 2
The two halves are separated by mutually engaging the two halves of the tubes inserted into the through holes and the cylindrical walls of the two halves of the two halves at the ends of the halves. An engaging portion is provided in which the block body and the two-split tube body are assembled together.

A hollow block body is constructed by fitting the above-mentioned two half block bodies together by fitting the fitting protrusions and the fitting holes on their joint end faces, respectively, and the hollow block body (the combined two half block)
Insert the two-split tube into the through-hole and the cylindrical wall, and lock the locking part of the tube to the edge of the through-hole of the half-split block. A block toy is constructed by engaging the engaging portions with each other and assembling the two half-block bodies and the two-half tube body together.

Such a block toy can be assembled and disassembled for play by fitting the fitting boss portion and the fitting hole portion.

The present invention relates to the improvement of this block toy by injection molding, and its purpose is to provide a block toy that requires only one mold for molding two half-block bodies.

[Means to solve the problem]

In order to achieve the above object, the present invention makes the shapes and structures of the two half block bodies the same, and the fitting protrusions and the fitting holes on the joint end surfaces of the half block bodies are provided symmetrically. It is characterized by:

[Effect]

According to the present invention, with the above-described structure, two half-block bodies constituting a hollow block body can be molded with one mold.

〔Example〕

Hereinafter, one embodiment of the block toy according to the present invention will be described with reference to the accompanying drawings.

In the figure, reference numeral 1 denotes a half-block body, and when the two half-block bodies 1 are put together, as shown in FIG. It integrally has cylindrical fitting boss parts 10, 10 on two faces perpendicular to the direction, and fitting hole parts (through holes 11, 11 and a cylindrical wall to be described later) on two opposing faces of the regular cube. 13, 13). That is, this half block body 1 is obtained by cutting the above-mentioned hollow block body in two along a plane that includes the center axis of the fitting boss portions 10 and is perpendicular to the fitting hole portion. It forms a shape. This half block body 1 is made of synthetic resin such as polyethylene,
The peripheral wall is formed with a substantially constant thickness so that when the two pieces are put together by injection molding, the above-mentioned hollow block body is formed. This half-split block body 1 has semi-cylindrical fitting boss parts 10 integrally protruding from two opposing faces in the dividing direction of the semi-regular cube, and a circular shaped fitting boss part 10 on the face perpendicular to the dividing direction of the semi-regular cube. Through hole 1
1 is provided through a locking step 12, a cylindrical wall 13 is integrally provided inwardly protruding from the edge of the through hole 11, and a plurality of notches 14 are provided at the tip of the cylindrical wall 13 in the axial direction. Place them at equal intervals. This cylindrical wall 13
The height of is made slightly smaller than the height of the surrounding wall of the semi-regular cube. A fitting protrusion 15 and a fitting hole 16 are provided on the joint end surface of the peripheral wall of this half-block body 1 symmetrically with respect to the X-axis direction or the Y-axis direction, as shown in FIG. In this way, the half block bodies 1 described above are formed to have the same shape and structure, and the fitting protrusions 15 and the fitting holes 16 on the joint end surfaces of the half block bodies 1 are provided symmetrically.

3 and 4 are tube bodies, and the tube bodies and 4 are the fitting boss portions 10, 1 of the hollow block bodies 1, 1.
0 can be removably fitted, an outer diameter that can be inserted into the through holes 11, 11 and cylindrical walls 13, 13 of the hollow block bodies 1, 1, and , 1, and the stepped portion 12 of the hollow block body 1, 1.
The fitting hole has a cylindrical shape and has locking flanges 30 and 40 at both ends that lock into the fitting hole 12. The tube bodies 3 and 4 are divided into two at approximately the center in a direction perpendicular to the axial direction. The two divided tube bodies 3 and 4 are made of synthetic resin such as polyethylene and are formed by injection molding. These two-split tubes 3 and 4 have locking flanges 30 and 40 at both ends.
and providing engaging portions 31 and 41 that engage with each other on the inner circumferential surface and outer circumferential surface of the end portion divided into two,
A plurality of protrusions 32, 42 are provided in the axial direction at equal intervals on the inner circumferential surface of the portion near the locking collars 30, 40,
These locking collars 30, 40 and the locking collar 3
Multiple slits 34,4 in the part near 0,40
4 are provided at equal intervals in the axial direction.

Thus, the two half-block bodies 1, 1
The fitting protrusions 15, 15 and the fitting holes 16, 16 are fitted respectively, and the two half block bodies 1,
1 at the joint end surfaces. In the through holes 11, 11 and the cylindrical walls 13, 13 of these two half block bodies 1, 1, two pipe bodies 3 and 4 are formed.
Insert each of the two half-block bodies 1,
1 locking stepped portion 12, 12 with two divided pipe bodies 3, 4
The locking flange portions 30 and 40 of the tube bodies 3 and 4 are respectively locked, and the engaging portions 31 and 4 of the two halves of the pipe bodies 3 and 4 are respectively locked.
1 are engaged with each other, and the two half-block bodies 1, 1 and the two-half tube bodies 3, 4 are assembled together to form a block toy.

A modified version of the block toy described later or a plurality of the same block toys are arranged, and the fitting boss portions 10, 10 are assembled.
You can play by assembling and disassembling the parts by fitting them with the fitting holes (tubes 3 and 4).

In this way, the two half-block bodies 1, 1 have the same shape and structure, and the fitting protrusion 15 and the fitting hole 16 provided on the joint end surfaces of the half-block bodies 1, 1 are symmetrical. Since the fitting protrusions 15 and the fitting holes 16 of the two half-block bodies 1, 1 fit into each other, the two half-block bodies 1, 1
can be molded with one mold, saving mold costs.

10 to 16 show modified examples of the block toy of the present invention, in which the same reference numerals as in FIGS. 1 to 9 indicate the same parts.

10 and 11 are blocks 1A, 1A that are regular cubes of the same size as the blocks 1, 1 of the first embodiment described above, without providing a fitting boss portion. Attach the tubes 3 and 4 in the fitting holes.

12 to 14 have two fitting boss portions 10B, 10B on two sides of block bodies 1B, 1B, which form a rectangular parallelepiped in which two blocks 1, 1 or 1A, 1A are connected, respectively. and two tube bodies 3 and 4 are installed. In the figure, reference numerals 17B and 18B are an engagement plate and an engagement groove provided symmetrically on the joint end surface of the half block body 1B, respectively.

In FIG. 15, the block toy has boss portions 10C fitted on two adjacent sides of block bodies 1C, 1C forming a regular cube of the same size as the first and second block bodies 1, 1, 1A, 1A. , 10C are provided protrudingly, and the two-split pipe bodies 3 and 4 are attached.

The block toy shown in FIG. 16 includes the first, second,
Fourth block body 1, 1, 1A, 1A, 1C, 1
Block 1 that is a regular cube with the same size as C
A bulging fitting boss portion 10D on one side of D, 1D,
10D is provided protrudingly, and the two-split pipe bodies 3 and 4 are attached.

[Effect of idea]

As is clear from the above, in the block toy of the present invention, the two half-block bodies have the same shape and structure, and the fitting projections and the fitting holes on the joint end faces of the half-block bodies are symmetrical. Since this is provided, the two half-block bodies constituting the hollow block body can be molded with one mold.

[Brief explanation of the drawing]

The attached drawings show an embodiment of a block toy according to the present invention, and FIGS. 1 to 9 show a block toy in which fitting boss portions are provided on two opposing sides of a block body, and FIG. 1 is a perspective view. Figure 2 is a plan view, Figure 3 is a sectional view taken along the line - in Figure 2, Figure 4 is a plan view of the half block body, Figure 5 is a front view of the half block body, and Figure 6 is a front view of the half block body. FIG. 7 is a bottom view of the half block body, FIG. 8 is a cross-sectional view taken along the - line in FIG. 4, and FIG.
It is an enlarged view of the part in a figure. FIG. 10 is a perspective view showing a block toy without a fitting boss portion on the block body, and FIG. 11 is a bottom view of the half block body. FIG. 12 is a perspective view showing a block toy in the form of a rectangular parallelepiped block, FIG. 13 is a bottom view thereof, and FIG. 14 is a partial front view thereof. 15th
The figure is a perspective view showing a block toy in which fitting boss portions are provided on two adjacent sides of the block body. FIG. 16 is a perspective view showing a block toy in which a bulge-shaped fitting boss is provided on the block body. 1, 1A, 1B, 1C, 1D... Half block body, 10, 10B, 10C, 10D... Fitting boss portion, 12... Locking step portion, 13... Cylindrical wall, 1
5... Fitting protrusion, 16... Fitting hole, 3, 4... Tube body, 30, 40... Locking collar portion, 31, 41... Engaging portion.

Claims (1)

[Scope of Claim for Utility Model Registration] A block toy that can be assembled and disassembled for play by fitting a fitting boss portion and a fitting hole portion, and which constitutes a hollow block body when put together.
The half block body is formed by injection molding and has a fitting protrusion on the joint end surface. and a fitting hole, respectively, a through hole into which the tube body is inserted is provided in a direction perpendicular to the joint end surface, and a cylindrical wall into which the tube body is inserted extends inward from the edge of the through hole. The tubular body is formed by injection molding, and has locking portions at both ends that lock onto the outer edges of the through holes of the half block body, and has a locking portion that locks on the outer edge of the through hole of the half block body, and a direction crossing the axial direction in the middle portion. It is divided into two parts, and the two halves of the tube body are inserted into the through hole and the cylindrical wall of the two halves of the block body, and the two halves of the tube body are inserted into the respective ends of the two halves. Therefore, in a block toy that is provided with an engaging portion where the two half-block bodies and the two-half pipe body are assembled together, the two half-block bodies are molded into the same shape and structure. A toy block characterized in that the fitting protrusion and the fitting hole on the joining end surface of the half block body are provided symmetrically.