JP3133626B2 - Fence - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fence post in which a post rises and falls from a cylindrical underground box buried underground, and more particularly to a fence post in which the raised post does not rattle. .

[0002]

2. Description of the Related Art There are non-fixed fence posts installed at entrances and exits of parks, entrances and exits from public roads to private roads, entrances and exits of parking lots, and the like, which prevents and allows vehicles to enter by hour. As shown in FIGS. 4 and 5, the non-fixed fence post includes a cylindrical basement box 110 buried underground and a support 12.
There is an embedded type where 0 goes up and down. Recessed fence post basement box 11
0 is slightly longer than the support 120, and the support 120 can be immersed in the underground box 110 when the support 120 is lowered. The inner diameter of the basement box 110 is
Is slightly larger than the outer shape of the support box 120, and a clearance is provided between the inner surface of the basement box 110 and the outer surface of the support column 120 so that the support column 120 can move up and down inside the basement box 110 smoothly. A pin 121 is provided at the lower part of the support 120 so that the raised support 120 is held at the top dead center.
Are protruding.

Further, the upper end opening 111 of the basement box 110
Has a cylindrical guide 130 for holding the support 120.
Is attached. The inner diameter of the guide 130 is substantially the same as the outer shape of the column 120, and a flange 131 is formed at the upper end of the guide 130. Screws (not shown) are screwed to the upper end surface of the basement box 110 from four places of the flange 131, and the guide 130 is fixed to the upper end opening 111 of the support 120. At the lower end of the guide 130, a guide groove 132 for introducing a pin 121 projecting from the lower part of the support 120 is formed, and a locking portion 133 for locking the pin 121 is formed at the back of the guide groove 132.

On the other hand, a support post 120 has a hook 122 on its upper end surface.
Is mounted so that it can come and go. When the vehicle is allowed to enter and the column 120 is lowered and stored in the underground box 110, the hook 122 is sunk into the column 120 so as not to hinder running and walking. To prevent entry of the vehicle, an operator picks up the hook 122 and raises the support column 120 from inside the basement box 110. Then, as shown in FIG. 5 , when the pin 121 projecting from the lower portion of the support 120 is introduced into the guide groove 132 of the guide 130 and locked by the locking portion 133, the support 120 maintains the top dead center.

[0005] The reflection seal 1 is provided on the upper part of the support 120.
May be stuck. If the reflective seal 1 is simply stuck to the surface of the support 120 having a uniform outer diameter, when the support 120 is moved up and down into the basement box 110, the reflective seal 1 is rubbed against the inner surface of the guide 130 and peeled off. Resulting in.
For this reason, Japanese Utility Model Publication No. 63-43221 discloses that
By forming a concave portion on the surface of the support 20 and attaching the reflective seal 1 to the concave portion, the surface of the reflective seal 1
There is disclosed a fence post that is located inside the surface of the fence.

[0006]

The support 120 and the guide 1
If there is almost no space between the support 30 and the guide 130, dust or the like enters between the support 120 and the guide 130, and the support 120 cannot be moved up and down from the basement box 110. Therefore, a clearance is provided between the support 120 and the guide 130.

However, if a clearance is provided between the support 120 and the guide 130, the raised support 120 will not be firmly held by the guide 130, and the support 120 will rattle. Slightly inclined and felt unstable. In addition, when several other fence posts are arranged, there is also a problem that the posture is likely to be uneven and the appearance is deteriorated when the support 120 is loose.

Accordingly, an object of the present invention is to provide a fence post in which a post raised from an underground box is held without rattling.

[0009]

A first means for achieving the above object is to insert a column into a cylindrical basement box so as to be able to move up and down, and to extend a column through the column inside the upper end of the basement box. A fence post equipped with a guide, wherein the planar shape of the inner surface of the guide has a waveform having discontinuous and concave ridges reaching the upper end and having discontinuous contact with the outer periphery of the support. .

[0010]

According to the first means, the inner surface of the guide has a waveform which discontinuously abuts the outer periphery of the column, so that the column is held in contact with a portion protruding toward the center of the guide. At the same time, a space is provided between the column depressed outside the guide and the support.

FIGS. 1A and 1B show an embodiment according to the present invention.
This will be described with reference to FIG. FIG. 1A is a cross-sectional front view of a fence post according to the present invention, and FIG. 1B is an enlarged cross-sectional front view of a main part of FIG. 1A. FIG. 2 is a perspective view of a lower end portion of a pillar of the fence post of FIG. 1 and a guide. FIG.
It is an AA line sectional view of (a) and (b).

In the fence post according to the present invention, the column 20 is inserted into the cylindrical basement box 10 so as to be able to ascend and descend, as in the prior art. As shown in FIG. A large number of convex stripes 32 protruding to the center side and concave stripes 33 depressed outward in a planar shape are formed in a waveform. Further, a bulging portion 21 is formed at the lower end edge of the column 20, and two enlarged diameter portions 22 project from a lower portion slightly above the bulging portion 21. Further, the inner surface of the basement box 10 forms a tapered surface 11 whose diameter is reduced from the middle to the upper end.

A bulging portion 21 formed on the lower edge of the column 20
It is assumed that, for example, a thick ring is externally fitted to the lower end edge of the column 20, and screws are screwed into four places to form the column 2.
Fix to 0. The material of the bulging portion 21 is not particularly limited, but it is desirable that the bulging portion 21 be capable of elastic deformation to some extent and have excellent sliding characteristics. From this viewpoint, a resin is recommended.

The enlarged diameter portion 22 slightly above the bulging portion 21 is in the form of a thin ring, and the strut 2 is configured to abut the inner surface 31 of the guide 30 when the strut 20 moves to the top dead center.
At the lower part of the “0”, two pins are interposed so as to protrude. The diameter of the enlarged diameter portion 22 is equal to the inside diameter of the guide 30 described later, and is therefore considerably smaller than the inside diameter of other parts of the basement box 10.
As a method of forming the enlarged diameter portion 22, other than a method of attaching a ring in the same manner as the above-described bulging portion 21, a method of plastically deforming the column 20 by pressing a roll against the inner surface of the column 20 is possible. A band-shaped reflective seal 1 is adhered to the upper part of the support 20, and ring-shaped ridges 12 are provided on both upper and lower sides of the reflective seal 1.
To protrude. The ridge 12 is formed by pressing a roll against the inner surface of the column 20 to plastically deform the column 20.

The tapered surface 11 of the basement box 10 has a larger inner diameter on the lower side than the bulging portion 21 of the column 20, and the upper side with a reduced diameter is mounted in the upper end of the basement box 10. It is assumed that the outer diameter of the guide 30 coincides with the outer diameter of the cylindrical guide 30. The inner diameter of the tapered surface 11 gradually decreases from the lower side to the upper side,
When 0 rises to the top dead center, the bulge 21
And the tapered surface 11 of the basement box 10 are brought into contact with each other.

As shown in FIG. 2, the cylindrical guide 30 mounted in the upper end of the basement box 10 has a large number of protruding ridges 32 discontinuously abutting on the enlarged diameter portion 22 of the column 20. By forming the inner surface 31 into a corrugated planar shape and forming a concave ridge 33 on the inner surface 31 of the guide 30, a space S is provided between the concave ridge 33 of the guide 30 and the column 20. Also, the ridges 32 protruding from the inner surface 31 of the guide 30 and the ridges 12 protruding on both sides of the reflection seal 1 are brought into contact with each other. The support 20 can be moved up and down in the underground box 10 that has been set.

The fence post according to the present invention is constructed as described above. To prevent the traffic of the vehicle, the support 13 immersed in the basement box 10 is raised by grasping the hook 13. At this time, since the projections 12 are provided on both sides of the reflection seal 1, the reflection seal 1 is not rubbed against the inner surface 31 of the guide 30 and thus does not come off. In addition, a bulging portion 21 protruding from a lower end edge of the support 20 is provided.
Does not come into contact with the inner surface of the basement box 10 from the lowermost end of the basement box 10 to the lower side of the tapered surface 11, so that the column 20 rises smoothly.

When the strut 20 approaches the top dead center, the strut 2
The pin 23 projecting from the lower part of the guide 30
The bulge 21 formed at the lower end edge of the column 20 is introduced into the tapered surface 11, and the enlarged diameter portion 22 projecting from the lower portion of the column 20 is introduced into the guide 30. When the column 20 reaches the top dead center, the pin 23 projecting from the lower portion of the column 20 is locked by a locking portion 35 at the back of a guide groove 34 formed in the guide 30. At the same time, the bulging portion 21 formed at the lower end edge of the support 20 contacts the tapered surface 11 and
The inner diameter 31 of the guide 30 extends from the enlarged diameter portion 22 protruding from the lower portion of the guide 30.
Abuts on the ridge 32 of the corrugation formed at the bottom. Therefore, even if the column 20 protrudes long from the basement box 10, the bulging portion 21 formed on the lower end edge abuts the tapered surface 11 of the basement box 10, and the enlarged diameter portion 22 protruding at the lower portion forms the guide 30. Since the column 20 comes into contact with the ridges 32, the column 20 is held at three lower positions, and maintains a posture protruding from the basement box 10 without rattling.

The vehicle 20 is allowed to enter, and the strut 20 is
In order to immerse the inside of the support 30, the hook 23 attached to the upper end surface of the support column 20 is grasped, and the pin 23 locked to the locking portion 35 of the guide 30 is released from the locking portion 35 of the guide 30.
Since the tapered surface 11 of the underground box 10 is enlarged in diameter from the upper side to the lower side, the swelling portion 21 formed at the lower end edge of the column 20 is not rubbed by the tapered surface 11, and the column 20 is weighted by its own weight. Descending inside. In addition, since the clearance between the outer circumference of the support 20 and the inner circumference of the underground box 10 is relatively large, the support 20 smoothly enters the underground box 10.

When the column 20 moves up and down in the basement box 10, the reflective seal 1 attached to the upper portion of the column 20 is protected by the ridges 12 on both sides of the reflective seal 1 and is rubbed against the inner surface 31 of the guide 30. Therefore, the reflection seal 1 does not peel off. Therefore, the column 20 protruding from the basement box 10 can be reliably recognized by the driver of the vehicle by the reflective seal 1.

The guide 30 is formed with a number of concave stripes 33 regardless of whether the column 20 is protruding from the basement box 10 or immersed in the basement box 10. Since the space S is provided between the support 33 and the column 10, dust and the like fall into the basement box 10 from the space S. Therefore, there is no possibility that the dust or the like is sandwiched between the support 20 and the guide 30 and the support 20 cannot be moved up and down from the basement box 10.

The present invention is not limited to the above embodiment,
Design changes can be made within the spirit of the invention. For example, the basement box can be applied to a type in which a lid is pivotally attached to the upper edge of the opening, and the column can be applied not only to an inverted U-shape but also to an I-shape. In addition, fence post which does not make taper surface in the inside of basement box,
The present invention can also be applied to a fence post that does not have a bulged portion or an enlarged-diameter portion on a column.

[0026]

According to the present invention, since the inner surface of the guide is corrugated, the inner surface of the guide and the outer periphery of the column are in point contact with each other at discontinuous or multiple points. Therefore, the pillars protruding from the basement box are held without rattling, and there is a sense of stability even when the pillars are touched. . Moreover, since a space is provided between the guide and the support, dust and the like are not interposed between the guide and the support. Therefore, the column can be permanently raised and lowered smoothly from the basement box.

[Brief description of the drawings]

1A is a sectional front view of a fence post according to the present invention, and FIG. 1B is an enlarged sectional front view of a main part of FIG. 1A.

FIG. 2 is a perspective view of a lower end portion of a pillar of the fence post of FIG. 1 and a guide.

FIG. 3 is a sectional view taken along line AA of FIGS. 1 (a) and 1 (b).

FIG. 4 is a sectional front view of a conventional fence post.

FIG. 5 is a perspective view in which a part of a conventional fence post is cut away.

[Explanation of symbols]

 10 basement box 20 prop 30 guide 31 inside

Continued on the front page (72) Inventor Yasuharu Watanabe 1972 Miyata Village, Kamiina-gun, Nagano Prefecture Toyo Exterior Co., Ltd. Literature JP-A-5-87017 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) E01F 13/00

Claims (1)

(57) [Claims] 1. A fence post in which a column is inserted into a cylindrical basement box so as to be able to ascend and descend and a cylindrical guide that penetrates the column is mounted on the inner surface of the upper end of the basement box. A fence post having a ridge and a ridge extending to an upper end and having a waveform that discontinuously abuts the outer periphery of a support.