JP2004205795A - Supporting base for pole or the like - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a folding type pole supporting base for supporting a pole for setting up a flag or a banner, which is made light-weight and small-volume when being not used and gives an adequately stable weight when being used. <P>SOLUTION: A supporting pedestal of a pole or the like for setting up a flag, a banner, a parasol, or the like or a pedestal of a color cone installed in a construction site or the like is made of a water tank manufactured by blow molding of flexible plastics and has the side wall portion formed by a slope or a round surface so that it can be made flat by compression from above, and can be folded by forming a plurality of stripes of recessed ribs on the inclined surface in the radial direction. One or less turn of a spiral projecting stripe is projectingly formed in a pole supporting member insertion hole in the center part of the pedestal to easily and surely fix a pole supporting member and the pedestal. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pole support for erecting flags, climbers, parasols, and the like, or a color cone pedestal to be installed at a construction site or the like.
[0002]
2. Description of the Related Art Flags and banners are erected as a sign for attracting customers at supermarkets, gas station stores, housing exhibition halls, and various other event venues, and many pole supports are used as concrete blocks. It is used. Further, recently, a water tank type which is a plastic molded product has been used.
[0003] In these pole supports, a pole support member is closely fitted to a vertical hole formed in the center thereof, and a base of a flag pole is inserted into the support member to stand up. Of these, the concrete pedestal is characterized by its large weight, which makes it possible to stably support flags and the like.However, the large weight makes it inconvenient to carry around for transportation and storage, and many flags are used. It is necessary to reduce the weight of the event venues that set up the classes.
As a solution to such a disadvantage, for example, a plastic water tank type pole support base shown in FIG. 8 has been developed. This will be described with reference to FIG. 8. A water storage portion W, a hollow main body A having a water supply / drainage port for the water storage portion, and an engagement notch B formed on the inner bottom surface of the hollow main body from the upper surface to the lower surface. A seat D having a mounting recess C formed therein, and a side surface which is formed as an insertion cylinder portion E for accommodating a pole base portion and which is press-fit to an inner peripheral surface of the mounting recess of the seat on the outer peripheral portion thereof. A tubular main body F having a projection, and an upper clamp having a large-diameter opening formed at an upper portion of the cylindrical main body, having an external thread portion engraved therein and connected to the insertion cylindrical portion of the cylindrical main body through a tapered surface. A pole support member J having a lower end engaging portion having an attaching portion G, a seat plate abutting against the inner bottom surface of the mounting recess of the seat base, and a protruding piece H detachably engaging with an engaging notch on the inner bottom surface; A nut having an internal thread for screwing to an external thread of the upper fastening portion of the pole support member. The main body and the center of the insertion cylinder portion are integrally extended from the upper portion of the nut main body to the inner lower side thereof and screwed to the external thread portion of the pole support member along the tapered surface of the pole support member by the advancement of the nut main body. And a compression nut member G having a plurality of flexible tongues which are configured to move in a direction to press the pole accommodated in the insertion tube portion. It is much lighter and easier to transport than a concrete pole stand.
[0005] In addition, a so-called color cone which is installed on a road or on the ground and has a conical shape for displaying a construction site is disclosed in which water or sand is injected into a base of the color cone in order to prevent a fall. (See, for example, Utility Model Document 1), but its weight makes it inconvenient to move.
[0006]
[Patent Document 1]
JP-A-8-123347 (refer to claims 1 and 2)
[Utility model document 1]
Japanese Utility Model Laid-Open No. 5-54618 (see FIG. 1)
[0007]
If the pole support itself is not filled with water, it is lightweight and has good workability, but its volume is quite large, and it requires a large space for storage as well as transportation. In particular, in a production plant and an event company of the pole support base, there is an inconvenience that a large storage space and a light-weight transportation means must be prepared, and the support base is reduced in volume. In addition, improvement of stackability for storage is an issue.
In addition, in a state where a flag or a banner is displayed by pouring water onto the pole support, an impact pressure is often applied to the pedestal by, for example, contacting the pedestal by an automobile or the like. There is an accident such as the internal pressure of the cap suddenly rises and the cap C is scattered, or the cap is removed due to mischief, and the development of a cap that does not easily come off is an issue.
[0009]
According to the present invention, in order to solve the above-mentioned problems, according to the first aspect, a water tank type pedestal in a pole support is provided with acetic acid based on 100 parts by weight of low-density polyethylene. A hollow product obtained by adding and mixing 10 to 50% by weight of a vinyl copolymer or 5 to 40% by weight of an acrylate ester copolymer and blow-molding the material with improved flexibility, and having a sloped side wall portion. The shape is such that it can be flattened by being formed from a surface or a round surface and compressed from above to improve transport and storage.
According to a second aspect of the present invention, in the water tank type pedestal, the pedestal is compressed from above by forming a plurality of concave ribs in a radial direction on a wall surface that becomes an inclined surface or a round surface. After flattening, it was possible to further fold.
According to a third aspect of the present invention, in the water tank type pedestal for the pole supporting base, a depressed flat part is formed around the upper end of the pole supporting member insertion hole formed in the center part, and the depressed flat part is formed in the depressed flat part. By providing two water supply / drainage holes and further providing a concave portion for attaching a preliminary cap, the cap fitted to these holes is covered and pressed by the pole supporting member, and is not easily detached.
According to a fourth aspect of the present invention, in the water tank type pedestal for the pole supporting base, a helical ridge that makes one or less rounds protrudes into a pole supporting member insertion hole formed in the center of the pedestal. The pole support member and the pedestal are easily fixed at the same time. This also prevented the cap from being lost.
[0013]
DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows an overall image of a pole support 10, FIG. 2 to FIG. 8 show its constituent members, and FIG. 9 shows one of the conventional examples.
As shown in FIG. 1, a pole support 10 according to the present invention is erected by inserting a pole support member 7 into a pedestal 1 to be formed into a plastic molded product and screwing the same. Is fixed with a nut 8 for insertion and tightening.
Each of these components will be described with reference to FIG. FIG. 2 is a front view partially showing a pedestal 1 as a water tank in a sectional view, and FIG. 3 is a plan view thereof. As can be seen from the cross-sectional display portion of FIG. 2 and FIG. 3, the pedestal 1 is a hollow body made of a thin plastic and blow-molded, has a substantially hexagonal planar shape, and has a pole support member 7 described later in the center thereof. A mounting hole 2 for insertion and screwing is provided with a helical ridge (female screw) 2a projecting one or a little less than one turn in the inner diameter portion thereof, and is opened vertically. Moreover, the upper end portion of the mounting hole 2 is in contact with a flat portion 3 formed so as to be slightly depressed from the upper end edge of the pedestal 1. It should be noted that the helical convex shape having one or less than one circumference is formed by forming the core 21 of the pole supporting member insertion hole forming die 20 into a two-body configuration 21a, 21b (FIG. 4), one of the abutting portions thereof. (E.g., 21a), which can be formed by blow molding using a single or slightly less than one concave streak 22c, which is easily formed without rotating the core or the molded product after the molding. The product can be released.
In the depressed flat portion 3 on the upper surface of the pedestal 1, two water supply / drainage ports 3a, 3a for injecting and draining water into the pedestal 1 are provided, and the through holes 3a, 3a are further formed. A recess 3b is provided for engaging a spare cap for closing. A cap 4 is fitted and attached to these through holes 3a, 3a and the recess 3b.
As shown in FIG. 2, the side surface of the pedestal 1 is formed on a spherical surface 5 in which the outer periphery 5a of the lower end surface and the outer periphery 5b of the start end of the depressed plane portion 3 on the upper surface are connected by an arc. ing. Similarly, the bottom surface 6 of the pedestal is also concavely curved with a radius similar to or larger than that of the arc R. Thereby, when the pedestal 1 is stored, several pedestals can be stacked as shown in FIG. 5, and if the dimension of the upper and lower curved surfaces (R) is made larger on the bottom side, there is no side slip. A stable stack will be made.
Although the pedestal 1 has been described as having a hexagonal planar shape, it is needless to say that the pedestal 1 may be circular or square.
As shown in FIG. 3, concave ribs 5c are formed radially on the spherical surface 5. This is a fold in the case where the pedestal 1 is compressed from above and flattened, then folded in two along the rib 5c, and further folded in three. The pedestal 1 is manufactured by blow molding as described above. The outline is that the resin is discharged from the molding machine as a parison and is introduced into a mold, and then compressed air is blown into the parison to form a mold cavity surface. It is made by expanding until it touches. In this case, the portion where the parison is well stretched becomes thin. The concave rib 5c, such as the U-shaped part, extends more greatly than the other arc-shaped flat part, and therefore becomes thinner and weakened to the extent that it can be used as the two-fold or three-fold fold. In order to facilitate the folding, 10 to 50% by weight of vinyl acetate copolymer or 5 to 40% by weight of acrylate copolymer is mixed with 100 parts by weight of low density polyethylene as a molding material of the base 1. Use a material with improved flexibility.
FIG. 6 shows a cylindrical pole supporting member 7 having a male screw 7a formed on the outer periphery of a base thereof, and a flat portion 3 formed on the upper surface of the base 1 slightly above the male screw 7a. The pole support member 7 has a male screw 7c formed on the outer diameter of the upper end thereof.
The pawl support member 7 is inserted into the mounting hole 2 of the pedestal 1, and the male screw 7 a is screwed into the helical ridge 2 a of the pedestal 1 by rotating the pawl supporting member 7 to be erected. become.
For example, several slits are cut in the upper end of the male screw 7c in the radial direction, and the inner diameter of the nut 8 to be screwed to the male screw 7c is formed to be thin and the nut 8 is tightened. The pole P inserted through the inner diameter of the pole support member 7 is tightened and fixed by a structure for reducing the diameter of the male screw 7c portion. Of course, other appropriate structures can be adopted.
As the flag pole P, a pipe having substantially the same diameter as the inside diameter of the pole support member 7 is used, and a flag or a flag is attached to the pipe (FIG. 1).
A method of using the pole support 10 of the present invention having the above configuration will be described. First, the cap of the water supply / drain opening 3a, 3a of the pedestal 1 is removed, and water is supplied from one of them. If a predetermined amount can be filled, the cap is fitted and closed. Note that a spare cap for loss is fitted in the concave portion 3b.
Next, the lower end of the pole supporting member 7 is inserted into the mounting hole 2 of the pedestal 1 and is rotated to screw the male screw 7c into the helical ridge 2a formed in the mounting hole 2 of the pedestal. Let it. As a result, the pole support member 7 stands upright on the pedestal 1, and at the same time, the flange portion 7b covers the upper surfaces of the water supply / drain ports 3a, 3a and the concave portion 3b. A pole P is inserted through the inside diameter of the pole support member 7 from above, and the outside diameter of the pole is tightened and fixed by a nut 8.
Next, the storage of the pole supporting member 1 will be described. First, the nut 8 is loosened, the pole P is pulled out, and the pole support member 7 is rotated in the loosening direction of the screw to remove it. In an event hall or the like, several pedestals in this state can be stored in a stacked manner as shown in FIG.
Further, the cap 4 of the two water supply / drain ports 3a, 3a is opened to discharge the water in the pedestal 1, and then the upper surface of the pedestal 1 is pressed to close the cap 4 in a flat shape. . Then, the radially formed concave rib 5c is folded in two along a folding line, and further folded in three (not shown). It can be stored and transported in this state.
In the above, the pole support of the flag and the banner has been described. On the other hand, in a so-called color cone 12 installed on a road or the ground and used as a sign during construction or the like, a female screw is formed on a base 12a of the color cone itself as shown in FIG. 1 and screwed into the spiral convex 2a to stand and set up. Also in this case, since the pole support 1 can be folded, storage and transportation are facilitated.
[0029]
By providing two water supply / drainage ports 3a, 3a, the other water supply / drainage port functions to discharge air in the pedestal 1 during water supply, thereby facilitating water supply. Further, when draining water from one of the water supply / drain ports 3a, air can be sucked into the pedestal 1 from the other water supply / drain port 3a, and the drainage efficiency is improved.
When the pole supporting member 7 is erected on the pedestal, the flange portion 7b covers the water supply / drain ports 3a, 3a and the upper surface of the concave portion 3b, and the cap is detached even when an impact pressure is applied to the pedestal. And no longer be removed by mischief.
A helical ridge (female screw) 2a is formed in the mounting hole 2 through which the pole support member 7 is inserted in the pedestal for supporting the pole or the like, so that the pole support member 7 is securely fixed. .
By inserting the base 12a of the color cone 12 into the mounting hole 2 of the support base for poles and the like constructed as described above and screwing the same, the color cone is stably held and the fall is prevented. Of course.
[Brief description of the drawings]
FIG. 1 is a front view of a pole supporter according to the present invention with a climber attached thereto.
FIG. 2 is a front view showing a pole support base in a partial cross section.
FIG. 3 is a plan view of FIG. 2;
FIGS. 4A and 4B show an example of a core of a mold for forming a spiral convex shape of a support member mounting hole in a pedestal, wherein FIG. 4A shows a state at the time of blow molding, and FIG. It is a front view of a state.
FIG. 5 is a partial cross-sectional front view showing a state where the pedestals of FIG. 2 are stacked.
FIG. 6 is a perspective view of a pole support member.
FIG. 7 is a front view showing, in a partial cross section, a state in which a pole supporting member is inserted into and screwed into a pedestal.
FIG. 8 is a front view of a partial cross section showing a state in which a color cone is erected on the pedestal.
FIG. 9 is a front view of a cross section showing a conventional example.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Pedestal 2 Mounting hole 3 Depressed plane part 3a Water supply / drainage port 3b Depression 4 Cap 5 Spherical surface 6 Bottom 7 Pole support member 8 Nut 10 Pole support base 12 Color cone P Pole

Claims (4)

On a support base such as a pole, the base of a water tank type base is mixed with 10 to 50% by weight of vinyl acetate copolymer or 5 to 40% by weight of acrylate copolymer based on 100 parts by weight of low-density polyethylene. It is a hollow product blow-molded with a material having improved flexibility, and has a side wall portion formed by an inclined surface or a round surface, which is flattened by compression from the upper surface. Support base for poles and the like. 2. The supporting pedestal according to claim 1, wherein a plurality of concave ribs are formed radially on a surface of a side wall which becomes an inclined surface or a round surface in the water tank type pedestal. A recessed flat portion is formed around the upper end of a pole support member insertion hole formed at the center of a water tank type pedestal for a support base such as a pole, and two water supply / drain holes are opened in the recessed flat portion. 3. The support pedestal according to claim 1, wherein a mounting recess is provided. In a water tank type pedestal for a support base such as a pole, a helical ridge is provided so as to project one or less round length on an inner peripheral surface of a pole support member insertion hole formed in the center of the pedestal. The support base for a pole or the like according to claim 1 or claim 2 or claim 3.

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