JPH0443249Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial application field This invention is a floor bracket for installing poles for attaching and detaching poles for installing nets for volleyball and tennis on the floor of gymnasiums, etc. It is related to.

Conventional Technology When playing volleyball or tennis in an indoor sports facility such as a gymnasium, poles must be erected to stretch the nets, but usually poles are pre-formed on the floor. The practice is to open a hole and insert a pole perpendicular to the floor. In other words, when it comes to sports facilities such as gymnasiums, it is not just a facility dedicated to volleyball or tennis, but in order to use the space as effectively as possible, many gymnasiums have a multi-purpose floor structure that is suitable for many sports. Only a usable flat floor surface is formed, and when playing volleyball or tennis, poles are inserted into metal fittings buried in the floor surface in advance so that they can be erected.

The conventional pole installation metal fittings will be explained with reference to Figs. 3 and 4.
A predetermined hole 2 is formed in the step part 2a of the hole 2.
The frame body 3 is fitted with the flange portion 3a supported by the frame body 3, and is fixed to the floor surface 1 with screws 4.
An anchor socket 5 made of a drawn steel pipe is buried in a concrete base 6 and fixed upright at the bottom of the frame, and the anchor socket 5 and the frame 3 are connected by inserting them into a tube-shaped packing 8 with screws 7. do. Tapered step portions 3b, 3b are formed on the inner surfaces of two opposing sides of the frame 3, and hinge brackets 9a, 9a are provided with protruding shaft protrusions 9, 9 that engage with the tapered step portions 3b. Approximately quadrilateral lid bodies 10 integrally cast are disposed facing each other. The lid body 10 is rotatable via the shaft projections 9, and the shaft projections 9 are connected to the tapered step portions 3b, 3.
b is slidable, and is detachably supported by a receiving portion 3c formed on the inner peripheral edge of the frame 3. Further, between the lid 10 and the frame 3, cutouts 3d, 3d are formed into which a fingertip can be inserted so that one end of the lid 10 can be easily opened. Recesses 10a, 10a are formed on both sides of the lid body 10, facing the direction 3d. Therefore,
When setting the pole 11 upright in the anchor socket 5, insert your fingertip into the recess 10a of the lid 10 from one of the notches 3d, lift up one end of the lid 10, and align the axis of the lid 10. The projection 9 is slid to the right along the tapered stepped portion 3b as shown by the phantom line in FIG. 4, moved so as to ride on the floor surface 1, and left as it is. Therefore, it is sufficient to open the anchor socket 5 and insert the pole 11 into the anchor socket 5. Then, a net was set up on pole 11 and a volleyball competition was held.
Alternatively, when playing a tennis match and storing the poles 11 after the match, all you have to do is pull out the poles 11, slide the lid 10 in the opposite direction, and fit it into the frame 3. It is. It goes without saying that the upper surfaces of the lid 10 and the frame 3 are at the same level as the floor 1.

Problems to be Solved by the Invention However, according to the above-mentioned conventional floor bracket for pole erection, the frame body 3 and the lid body 10 are each made of metal, and the lid body 10 is supported by two points of the shaft protrusion 9. The end facing the shaft protrusion 9 is easily engaged with the frame body, and if you jump on that end, the lid 10 will not lift up and open. In addition to being dangerous, when the lid is opened, the lid 10 is left in the vicinity of the pole 11, so there is a risk that a person may fall if their toes hit the lid 10. There is a disadvantage that there is a high possibility that this may occur.

In view of the above circumstances, this idea was developed to prevent the lid from opening accidentally and cause problems during sports other than volleyball or tennis, and to prevent the lid from opening inadvertently and leaving the lid in the vicinity of the pole. The aim is to improve the floor fittings for poles so that they will not be left in the same condition.

Means for Solving the Problems In order to solve the above problems, this invention forms a hole with a step in the floor surface, and the peripheral edge is supported by the step of the hole. A plate is mounted on which a long hole is formed near the peripheral edge and a pole insertion hole is bored in the center, a frame is mounted on the top of the plate, and the plate is fitted into the frame, and
The plate has two orthogonal surfaces that can be inserted into and removed from the elongated hole formed in the plate, one of which forms a lid, and the other surface of which forms a piece with a notch into which a pole can be inserted. This is a floor metal fitting for installing a pole, which is formed by removably attaching a lid body consisting of a pair of lid pieces.

Effects According to this invention with the above structure, the lid body has an angled shape, so if the piece with the notch is inserted into the long hole of the plate, the hole hole into which the pole is inserted will be in the lid part. Even if the lid is closed and the lid is flipped open accidentally, the piece inserted into the elongated hole will swing and return to its original state due to its own weight. In addition, if you insert the lid into the elongated hole and turn the piece in the notch upward, the notch opens a hole for inserting the pole, and there is no need to remove the lid, and it is attached as an integral part of the floor metal fittings. It doesn't get in the way because it's there.

Embodiment Next, an embodiment of this invention will be described based on the drawings. FIG. 1 is an exploded perspective view, and FIG. 2 is a central vertical sectional view. As shown, a hole 2 made in the floor 1
In this case, a step portion 2a is formed on the inner peripheral edge thereof, and a substantially square plate 12 whose four sides are supported by the step portion 2a is inserted into the hole 2. plate 1
2 has long holes 12a, 12a formed in parallel on two opposing sides, and a pole insertion hole 12 in the center.
b is bored, and in the vicinity of the pole insertion hole 12b, four through holes 12c are formed concentrically arranged on diagonal lines. This through hole 12
Insert the screws 13 into c, respectively, and
Anchor socket 5 erected at the bottom of hole 2
Holder plate 1 fixed to the upper end of the
The plate 12 is temporarily fixed to the floor surface 1 by screwing the tubes 14b into the screw holes 14a of No. 4 with the tubes 14b interposed therebetween. A frame 1 is placed above the plate 12.
Place 5. The frame 15 fits into the hole 2,
It is a substantially square member similar to the plate 12, and has a through hole 15a that matches the through hole 12d formed around the periphery of the plate 12, and a hemispherical recess 15b on the inner peripheral surface on two opposing sides. is formed. Note that the frame 15 does not hide the long holes 12a, 12a of the plate 12;
a, 12a are open upwards. Therefore, after placing the frame 15 on the top of the plate 12 and checking whether the top surface is on the same level as the floor surface 1, insert the wood screws 15c into the through holes 15a, which are aligned at the top and bottom. 12d, and screw into the stepped portion 2a to fix. frame 15
If the top surface of is not at the same level as floor 1,
The level of the plate 12 may be raised or lowered by rotating the screw 13. A lid 16 having a substantially square upper surface that fits inside the frame 15 is removably inserted into the upper surface of the plate 12 thus fixed. The lid body 16 is an angle member made of two symmetrical lid pieces 16a and 16b, each of which is connected to the elongated hole 12a of the plate 12.
The piece 16c has a plate thickness that can be inserted into the
16c has semicircular cutout members 16d and 1, respectively.
6d, and a hemispherical convex portion 16 that fits into the concave portion 15b of the frame 15 is formed on the side surface.
The lid portions 16f, 16f have the same shape as the pieces 16c, 16c and remain exposed, but recesses 16g, 16h, which open upward and downward, are formed on the end surfaces where the two should come into contact. are formed respectively. The notches 16d, 16d match to form a circular hole having the same or slightly larger inner diameter of the anchor socket 5, and the recesses 16g, 16
h can open the lid 16 by inserting his fingertip. The notches 16d and 16d match each other to form a circular hole that matches the pole insertion hole 12b of the plate 12. The lid body 16, frame 15, and plate 12 may each be made of metal, but in this example, they are made of synthetic resin such as engineering plastic.

In the above embodiment, the cross-sectional shape of the opening of the anchor socket 5, the pole insertion hole 12b, and the notch 16d are each circular to match the pole 11, but if the cross-sectional shape of the pole 11 is approximately square, then Of course, it is also possible to use a substantially square shape. Further, although the lid body 16 is constructed of two divided lid pieces each having an angle shape, it may be constructed of a single angled member without being divided. In this case, one of the elongated holes 12a of the plate 12 is sufficient. Moreover, in that case, the notch 16d is formed as a circular hole or a square hole.

To explain the operation of the above embodiment, when the floor surface 1 is used for a sport other than volleyball or tennis without the pole 11 being erected, the lid part 16f of the lid body 16,
The pieces 16c, 16c are inserted into the elongated holes 12a, 12a of the plate 12 and fixed with the 16f facing upward. Therefore, the lid parts 16f, 16f face each other inside the frame 15 and remain at the same level as the floor surface 1, and in some cases, the lid parts 16f, 16f
Even if the piece 16c,
16c can be swung to restore the original state at all times.

Next, when setting up the pole 11, the lid body 1
Insert your fingertips into the notches 16g and 16h of No. 6 to open one of the lid pieces 16a and 16b, and
Pull upwards. Then, the lid piece 16 pulled out
a, 16b, respectively, and insert the lids 16f, 16f into the long holes 12a, 1
2a, the notches 16d, 16
d forms a hole that matches the pole insertion hole 12b, so the pole 11 can be inserted into the hole and erected.

Effects of the Device As explained above, according to this device, a hole with a stepped portion is formed in the floor surface, the peripheral portion is supported by the stepped portion of the hole, and a long portion is provided near the peripheral portion. A plate is placed on which a hole is formed and a pole insertion hole is bored in the center, a frame is placed on top of the plate, and the plate is fitted into the frame, and
The plate has two orthogonal surfaces that can be inserted into and removed from the elongated hole formed in the plate, one of which forms a lid, and the other surface of which forms a piece with a notch into which a pole can be inserted. Since the lid body consisting of a pair of lid pieces is removably attached, the pole insertion hole can be closed by the lid part of the lid piece, and one piece can be inserted into the elongated hole of the plate to temporarily prevent the lid part from jumping. Even if the lid is opened, the piece acts as a pendulum, thereby preventing the lid from opening accidentally. In addition, when setting the pole upright, the lid can be inserted into the long hole of the plate so that one side is facing up, so the lid does not need to be removed and is always attached as an integral part, which is convenient. , etc.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view showing an embodiment of this invention, Fig. 2 is a central longitudinal sectional view of the assembled state, Fig. 3 is a plan view of the conventional example, and Fig. 4 is a central longitudinal sectional view thereof. . 1... Floor surface, 2... Hole hole, 2a... Step part, 5...
...Anchor socket, 6...Concrete base, 11...Pole, 12...Plate, 12a
... Long hole, 12b ... Pole insertion hole, 13 ... Screw, 14 ... Holder plate, 15 ... Frame, 15a ... Through hole, 15b ... Recess, 16 ...
Lid body, 16a, 16b...lid piece, 16c...piece part, 16d...notch part, 16e...convex part, 16f
...Lid.

Claims (1)

[Scope of utility model registration request] A hole with a stepped portion is formed in the floor surface, the peripheral edge is supported by the stepped portion of the hole, and a long hole is formed near the peripheral edge, and a pole insertion hole is drilled in the center. Place a plate on top of the plate, place a frame on top of the plate, fit it into the frame,
and an angle having two orthogonal surfaces that can be inserted into and removed from the elongated hole formed in the plate, one surface of which forms a lid, and the other surface of which forms a piece with a notch into which a pole can be inserted. A floor metal fitting for installing a pole, characterized in that a lid body consisting of a pair of shaped lid pieces is removably attached.