JP3689693B2 - Support stand such as pole - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a structure of a pole support stand for standing a flag, a banner, a parasol, or the like, or a base for a color cone installed at a construction site.
[0002]
[Prior art]
Flags and banners are erected as a landmark for attracting customers at supermarkets, gas station stores, residential exhibition halls, and other various event venues. For this purpose, pole support stands that are made of concrete blocks are often used. Recently, a water tank type plastic molded product has been used.
[0003]
In these pole support bases, a pole support member is closely fitted in a vertical hole portion formed at the center thereof, and a flag pole base is inserted into the support member, and a banner is erected. Among them, the concrete pedestal is characterized in that it can support the flag etc. stably because of its heavy weight, but its large weight is inconvenient for carrying around for movement and storage. The weight reduction is required to set up an event venue.
[0004]
In order to eliminate such drawbacks, for example, a plastic water tank type pole support shown in FIG. 9 has been developed. This will be described with reference to FIG. 9. A hollow main body A having a water storage portion W and a water supply / drain 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 side to the lower surface side. A seat D with the formed mounting recess C, and a side surface that is formed as an insertion tube portion E for accommodating the pole base portion and is press-fitted to the inner side surface of the mounting recess of the seat base on the outer periphery thereof A cylindrical main body F having a protrusion, and an upper tightening formed on the upper portion of the cylindrical main body and having a large-diameter opening that is engraved with an external thread and is continuous with the insertion cylindrical portion of the cylindrical main body via a tapered surface. And a pole support member J having a lower engaging portion having a seat plate contacting the inner bottom surface of the mounting recess of the seat base and a projecting piece H removably engaged with the engagement notch of the inner bottom surface. And a nut having an inner thread portion that is screwed onto an outer thread portion of the upper tightening portion of the pole support member. And the center of the insertion tube portion along the taper surface of the pole support member by advancing the nut body to the outer screw portion of the pole support member and integrally extending from the upper portion of the nut body to the inner lower side thereof The compression nut member G is provided with a plurality of flexible tongues configured to move in the direction and clamp the pole accommodated in the insertion tube portion. It is much lighter and easier to transport than a concrete pole stand.
[0005]
Also, a so-called color cone that is installed on a road or the ground to display a construction site or the like has been disclosed in which water or sand is injected into its base to prevent the fall (for example, practical use). However, there is inconvenience in movement due to its weight.
[0006]
[Patent Document 1]
JP-A-8-123347 (refer to claim 1 and FIG. 2)
[Utility model document 1]
Japanese Utility Model Publication No. 5-54618 (see FIG. 1)
[0007]
[Problems to be solved by the invention]
The pole support itself is lightweight and has good workability if it is not filled with water, but its volume is quite large, and the problem is that it requires a large space for storage as well as transportation. Production factories and event companies have the inconvenience of having to prepare a large-scale transportation means despite the large storage space and light weight, which reduces the volume of the support base and improves the stackability for storage. It is an issue.
[0008]
In addition, in the state where water is poured into the pole support base and a flag or a banner is posted, an impact pressure is often applied to the base due to an automobile or the like coming into contact with the base, and thereby the internal pressure of the base is increased. There is an accident that the cap C is suddenly raised and the cap C scatters or the cap is removed by mischief, and the development of a cap that does not easily come off is a problem.
[0009]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, the present invention provides the water tank type pedestal in the pole support base according to claim 1, wherein the vinyl acetate copolymer is 10 to 50% by weight with respect to 100 parts by weight of the low density polyethylene. Alternatively, a hollow product in which 5 to 40% by weight of an acrylate copolymer is added and mixed, and blow-molded with a material having improved flexibility, and the side wall portion thereof is formed by an inclined surface or a rounded surface. It has a shape that can be flattened by compression from above, improving transport and storage.
[0010]
Invention according to claim 2, in the water tank type pedestal, by forming integrally the concave ribs plural rows in the radial direction on the side wall surface becomes inclined or rounded surface, from above the pedestal After compression and flattening, further folding was possible.
[0011]
In the water tank type pedestal for the pole support base, the invention according to claim 3 forms a depressed flat portion around the upper end of the pole support member insertion hole formed at the center thereof, and the water supply / drain hole 2 in the depressed flat portion. In addition, by providing the spare cap mounting recesses, the caps to be fitted to these were covered and pressed by the pole support members and were not easily detached.
[0012]
According to the invention of claim 4, in the water tank type pedestal for pole support base, a spiral ridge that protrudes once or less in a pole support member insertion hole formed in the center of the pedestal is formed to project. As a result, the molding operability is improved and the pole support member and the base are easily fixed. This also prevented the cap from being lost.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows an overall view of the pole support base 10, FIGS. 2 to 8 show its constituent members, and FIG. 9 shows one of the conventional examples.
[0014]
A pole support base 10 according to the present invention is erected by inserting and screwing a pole support member 7 to a base 1 that is a plastic molded product as shown in FIG. The pole P is inserted and fixed with a nut 8 for tightening.
[0015]
Each of these components will be described with reference to FIG. FIG. 2 is a front view showing a pedestal 1 as a water tank in a partially 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 that is a blow-molded product made of thin plastic, has a substantially hexagonal planar shape, and a pole support member 7 described later at the center thereof. The mounting hole 2 for inserting and screwing is provided with a spiral protrusion (female screw) 2a projecting in the inner diameter portion of the inner diameter portion and having a round of less than one round, and is open in the vertical direction. Moreover, the upper end portion of the mounting hole 2 is in contact with the flat portion 3 formed so as to be slightly depressed from the upper end edge of the base 1. In addition, the spiral convex shape of the above-mentioned one round or a little less than one round has one core 21 of the pole support member insertion hole forming die 20 as a two-body configuration 21a, 21b (FIG. 4). (E.g. 21a) can be formed by blow molding using one or a few slightly recessed grooves 22c, which makes it easy to form without rotating the core or molded product after molding The product can be released.
[0016]
The recessed flat portion 3 on the upper surface of the pedestal 1 is provided with two water supply / drain ports 3a and 3a for pouring and draining water into the pedestal 1 and for closing the through holes 3a and 3a. A recess 3b is provided for engaging the spare cap. A cap 4 is fitted and attached to the through holes 3a and 3a and the recess 3b.
[0017]
Further, as shown in FIG. 2, the side surface shape of the pedestal 1 is formed on a spherical surface 5 in which an outer periphery 5a of the lower end surface and a starting end outer periphery 5b of the depressed flat surface portion 3 of the upper surface are connected by an arc. Similarly, the bottom surface 6 of the pedestal is also formed in a concave curved surface shape with a radius similar to or larger than the arc R. As a result, when the pedestal 1 is stored, several pieces can be stacked as shown in FIG. 5, and there is no skidding if the upper and lower curved surfaces (R) are made large on the bottom side. A stable stack can be achieved.
[0018]
The planar shape of the pedestal 1 has been described as a hexagonal shape as described above, but it is needless to say that it may be circular or rectangular.
[0019]
As shown in FIG. 3, concave ribs 5c, 5c,... Are formed radially on the spherical surface 5 described above. This is a crease when the pedestal 1 is compressed and flattened from above, and then folded in two along the rib 5c and further into three. The main 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 introduced into the mold, and then compressed air is blown into the parison to the mold cavity surface. Inflate until touching. In this case, the part where the parison is stretched well becomes thin. The concave rib 5c portion such as the U-shape extends larger than the other arc-shaped flat portion, and thus becomes thin and weakened to such an extent that it can be used as the above-described bi-fold or tri-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 for the base 1. Use materials with improved flexibility.
[0020]
FIG. 6 shows a cylindrical pole support member 7 having a male screw 7a formed on the outer periphery of the base, and fitted to a flat surface portion 3 formed in a depressed portion on the upper surface of the base 1 slightly above the male screw 7a. A flange 7b is formed, and a male thread 7c is formed on the outer diameter of the upper end of the pole support member 7.
[0021]
The pole support member 7 is inserted into the mounting hole 2 of the pedestal 1 and is rotated so that the male screw 7a is screwed into the spiral ridge 2a of the pedestal 1 and is erected.
[0022]
The male screw 7c at the upper end is formed with, for example, several slits in the radial direction, the inner diameter of the nut 8 that is screwed into the male screw 7c is narrowed, and the nut 8 is tightened to tighten the male screw. A structure in which the pole P inserted through the inner diameter of the pole support member 7 is fastened and fixed by, for example, a structure in which the diameter of the portion 7c is tightened. Of course, other appropriate structures can be adopted.
[0023]
As the flag pole P, a pipe having the same diameter as the inner diameter of the pole support member 7 is used, and a flag or a banner is attached to the pipe (FIG. 1).
[0024]
A method of using the pole support 10 of the present invention having the above configuration will be described. First, the caps of the water supply / drain ports 3a and 3a of the base 1 are 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 against loss is fitted into the recess 3b.
[0025]
Next, the lower end of the pole support member 7 is inserted into the mounting hole 2 of the pedestal 1 and rotated so that the male screw 7a is screwed with the spiral ridge 2a formed in the mounting hole 2 of the pedestal. As a result, the pole support member 7 stands upright on the base 1, and at the same time, the flange portion 7b covers the upper surfaces of the water supply / drain ports 3a and 3a and the recess 3b. A pole P is inserted into the inner diameter of the pole support member 7 from above, and the outer diameter of the pole is fastened and fixed by a nut 8.
[0026]
Next, storage of the pole support member 1 will be described. First, the nut 8 is loosened, the pole P is extracted, and the pole support member 7 is further rotated in the loosening direction of the screw to remove it. In an event venue, several pedestals in this state can be stored as shown in FIG.
[0027]
Further, the caps 4 of the two water supply / drain ports 3a, 3a are 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 ribs 5c are folded into two as folding lines, and further folded into three (not shown). It can be stored and transported in this state.
[0028]
In the above, we explained the support of flags and banners. On the other hand, in the so-called color cone 12 which is installed on the road or the ground and used as a sign during construction or the like, as shown in FIG. 1 and is installed and installed by being screwed into the spiral convex 2a. Also in this case, the pole support 1 can be folded, so that it can be stored and transported easily.
[0029]
【The invention's effect】
By opening two water supply / drain ports 3a, 3a, the other water supply / discharge port discharges air in the pedestal 1 during water supply, facilitating water supply. Moreover, when draining from one water supply / drain port 3a, it is possible to inhale air into the base 1 from the other water supply / drain port 3a, and drainage efficiency is improved.
[0030]
When the pole support member 7 is erected on the pedestal, the flange portion 7b covers the upper surfaces of the water supply / drain ports 3a, 3a and the recess 3b, and the cap does not come off even if impact pressure is applied to the pedestal, Also, it was no longer removed by mischief.
[0031]
In the mounting base 2 through which the pole support member 7 is inserted in the support base such as a pole, the pole support member 7 is firmly fixed by forming the spiral protrusion (female screw) 2a that makes a little less than one turn.
[0032]
It goes without saying that the base 12a of the color cone 12 is inserted into the mounting hole 2 of the support base such as a pole configured as described above and screwed, so that the color cone is stably held and the fall is prevented. .
[Brief description of the drawings]
FIG. 1 is a front view of a lift mounted on a pole support according to the present invention.
FIG. 2 is a front view partially showing a pole support base for the base.
FIG. 3 is a plan view of FIG. 2;
FIGS. 4A and 4B show an example of a core for forming a spiral convex shape of a support member mounting hole in a pedestal, in which FIG. 4A is 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 in which the pedestals of FIG. 2 are stacked.
FIG. 6 is a perspective view of a pole support member.
FIG. 7 is a front view, partially in section, showing a state in which a pole support member is inserted 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 a main pedestal.
FIG. 9 is a front view of a cross section showing a conventional example.
[Explanation of symbols]
1 Base 2 Mounting hole 3 Recessed flat surface portion 3a Water supply / drain port 3b Recess 4 Cap 5 Spherical surface 6 Bottom surface 7 Pole support member 8 Nut 10 Pole support base 12 Color cone P Pole

Claims (4)

The water tank type pedestal of the support base that stands up and supports the pole etc. in the center thereof, the base surface is a hexagonal or circular shape in plan view, the upper end surface is smaller in diameter than the base, and the side wall surface that connects between them is formed by an arc, The bottom surface of the base portion is a concave curved surface (medium-high shape) by an arc having the same or larger radius than the side wall, and this is 10 to 50% by weight of vinyl acetate copolymer or 100% by weight of acrylic ester copolymer with respect to 100 parts by weight of low density polyethylene. A pole support pedestal characterized in that it is made hollow by blow molding with a material that is mixed with 5 to 40% by weight to improve flexibility, and can be flattened by compression from the upper surface. 2. The pole support pedestal according to claim 1, wherein in the water tank type pedestal, a plurality of thin rib grooves are integrally formed in a radial direction on a side wall surface that is an inclined surface or a rounded surface. In a water tank type pedestal as a support such as a pole, a recessed flat portion is formed around the upper end of the pole support member insertion hole formed in the center thereof, and two water supply / drain holes are opened in the depressed flat portion, 3. The pole support base according to claim 1, further comprising a spare cap mounting recess. In a water tank type pedestal for a support base such as a pole, a spiral ridge projecting on the inner peripheral surface of the pole support member insertion hole formed at the center of the pedestal with a round length of one turn or less. The pole support base according to claim 1, claim 2, or claim 3.

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