JPH0587016U - Fence post - Google Patents

Abstract

(57) [Abstract] [Purpose] It is possible to reduce the rattling of the column body held in the drawn-out position, to reduce the movement resistance of the column body, and to reduce the scratches caused by mud on the outer peripheral surface of the column body. To be able to [Structure] An outer cylinder 1 buried in the ground, a mounting cylinder 2 provided inside the upper part of the outer cylinder 1, and a pillar 4 inserted into the outer cylinder 1 so as to be stored therein. A large-diameter fitting portion 41 of a predetermined length is provided in the lower part of the pillar 4 so as to face the inner peripheral surface of the mounting cylinder 2 with a slight gap when the pillar 4 is pulled out to the drawing position. A column in which a discharge groove 5 that opens vertically is provided on at least one of the outer peripheral surface of the large-diameter fitting portion 41 and the inner peripheral surface of the mounting cylinder 2, and is held in the drawn-out position by the large-diameter fitting portion 41. The rattling of the body 4 can be reduced, and the outer peripheral surface of the column body 4 excluding the large-diameter fitting portion 41 and the mounting cylinder 2
It is possible to increase the gap between the inner peripheral surface and the movement resistance of the columnar body 4, and the discharge groove 5 allows the columnar body 4 to be moved.
It is possible to reduce the movement resistance due to the mud and the damage to the outer peripheral surface of the columnar body 4 due to the mud.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 TECHNICAL FIELD The present invention relates to a fence pillar for preventing a vehicle or a person from passing through by erected a pillar body that is pulled out from an outer cylinder embedded in the ground and inserted so as to be stowed to the ground.

[0002]

[Prior Art]

 Conventionally, in this type of fence post, as described in, for example, Japanese Utility Model Laid-Open No. 2-29915, an attachment cylinder is fixed inside the upper part of an outer cylinder buried in the ground, and the outer cylinder is A straight cylindrical pillar having a diameter smaller than the inner diameter of the mounting cylinder is pulled out and inserted so that it can be stored therein, and an engaging pin protruding outward in the radial direction is provided at the lower part of the pillar while the mounting cylinder is being mounted. A guide groove extending axially upward from its lower end to guide the engaging pin, and a hook extending circumferentially from the upper end of the guide groove to restrict axial movement and circumferential movement of the engaging pin. When the column body is pulled out to the pulling-out position, the engagement pin protruding from the column body is guided by the guide groove, and the column body is angularly rotated to engage the engagement. The pin is engaged with the hook-shaped locking groove to hold the column in the pulled-out position.

[0003]

[Problems to be solved by the device]

 However, as described above, in the case of a fence column in which the pillar is pulled out from the outer cylinder and inserted storably, the inner peripheral surface of the mounting cylinder fixed inside the upper part of the outer cylinder and the outer peripheral surface of the pillar are described. There is a gap at a specified interval between the columns to draw out and store the columns.If this gap is made large to facilitate the pulling out and storing of the columns, the pulling position There is a problem that the column body held in the above becomes liable to rattle in the lateral direction with respect to the outer cylinder, and if the gap is reduced to reduce the rattling of the column body, the above-mentioned opening from the upper end opening of the mounting cylinder body Since the mud that has entered the gap is accumulated in the gap, the movement resistance when the column body is pulled out and stored increases, and since the column body is formed in a straight tube shape, If you reduce the gap as above, you can pull out the column, With paid operation is hardly very done, there is an outer peripheral surface scratched problem by the mud column body.

The present invention has been made in view of the above points, and an object thereof is to reduce rattling of a column body held in a drawn-out position, to reduce movement resistance of the column body, and to reduce an outer circumference of the column body. The point is to be able to reduce scratches caused by mud on the surface.

[0005]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention has an outer cylinder 1 buried in the ground, a mounting cylinder body 2 provided inside the upper part of the outer cylinder 1, and an outer cylinder 1 which is pulled out and inserted so that it can be stored. And a column body 4 having a diameter of a predetermined length that faces the inner peripheral surface of the mounting tube body 2 with a small gap at the bottom of the column body 4 when the column body 4 is pulled out. The large fitting portion 41 is provided, and the discharge groove 5 that opens vertically is provided on at least one of the outer peripheral surface of the large diameter fitting portion 41 and the inner peripheral surface of the mounting cylinder 2.

A seal ring 8 that covers the discharge groove 5 is preferably provided above the facing portion between the mounting cylinder 2 and the large-diameter fitting portion 41.

[0007]

[Action]

 When the pillar 4 is pulled out to the pulling-out position, the large-diameter fitting portion 41 provided in the lower portion of the pillar 4 faces the inner peripheral surface of the mounting cylinder 2 with a slight gap, so that in this facing portion. Since the gap is small, the rattling of the column 4 with respect to the outer cylinder 1 can be reduced. Moreover, since the large-diameter fitting portion 41 of the column body 4 is provided with the discharge groove 5 that is opened vertically, the mud that has entered inward from the upper end opening of the mounting cylinder 2 is discharged into the discharge groove. It is possible to discharge downward from 5 to minimize the movement resistance of the pillar body 4 due to the mud, and the large diameter fitting portion 41 is provided in the lower part of the pillar body 4, and At the time of pulling out to the pulling-out position, since the stored columnar body 4 approaches the pulling-out position, the large-diameter fitting portion 41 enters into the mounting tubular body 2 because it faces the inner peripheral surface of the mounting tubular body 2. Up to and until the large-diameter fitting portion 41 does not face the inner peripheral surface of the mounting cylinder 2 and the pillar 4 is stored in the storage position, the pillar 4 and the mounting cylinder 2, The gap between the outer cylinder 1 and the outer cylinder 1 can be increased, and the movement resistance of the columnar body 4 can be made very small. It is possible to easily pull out and storing operation of the column body 4 What reduction coupled with the resistance, it can be less scratched by the mud column body 4 outer circumferential surface.

Further, by providing the seal ring 8 covering the discharge groove 5 above the facing portion between the mounting cylinder 2 and the large-diameter fitting portion 41, it is difficult for mud to enter the discharge groove 5. Therefore, the above-mentioned effects of mud can be reduced.

[0009]

【Example】

 The fence post shown in FIGS. 1 to 4 has a fixed cylindrical body 11 having a collar portion 11a fixed to the outside of the upper part of a straight cylindrical outer cylinder 1 buried in the ground, and the upper part of the outer cylinder 1. A mounting cylinder body 2 having a flange portion 21 facing the flange portion 11a of the fixed cylinder body 11 is detachably mounted on the inner side with a mounting screw 3, and the outer cylinder 1 has a larger inner diameter than that of the mounting cylinder body 2. Also, the columnar body 4 having a small diameter and having a right cylindrical shape is pulled out and inserted so that it can be stored. The outer cylinder 1 is made of synthetic resin, and the mounting cylinder 2 is made of aluminum or synthetic resin. .

A large-diameter fitting of a predetermined length is provided on the lower portion of the column body 4 to face the inner circumferential surface 2a of the mounting cylinder body 2 with a small gap when the column body 4 is pulled out to the pull-out position. A portion 41 is provided, and eight discharge grooves 5 that are open vertically are provided on the outer peripheral surface of the large-diameter fitting portion 41 at predetermined intervals in the circumferential direction. The discharge groove 5 is formed straight in the axial direction, but it may be formed in a spiral shape. Further, the large-diameter fitting portion 41 is formed by a cylindrical body 40 made of aluminum or plastics, which is formed separately from the column body 4, and the cylindrical body 40 is formed on the lower outer periphery of the column body 4. It is fitted to and fixed by four caulking pins 6. Further, the column body 4 is provided with an engagement pin 7 which penetrates the large-diameter fitting portion 41 and projects outward on both sides in the radial direction. The engagement pin 7 is inserted into a holding cylinder 70 that is inserted into the column body 4, and the holding cylinder 70 and the engagement pin 7 are connected by a split pin (not shown) to form an engagement pin. 7 to prevent the column 4 from falling off. The large-diameter fitting portion 41 may be formed integrally with the columnar body 4.

In addition, an annular protrusion 25 protruding inward in the radial direction and an annular holding recess 22 are provided at the upper end open portion of the mounting cylinder 2, and the holding recess 22 is pulled out to a pull-out position. An annular seal ring 8 that covers the opening of the discharge groove 5 in the pillar body 4 is detachably held. The inner peripheral surface 8a of the seal ring 8 faces the outer peripheral surface of the column body 4 with a small gap, and the gap between the seal ring 8 and the column body 4 is reduced to reduce the discharge groove of the mud. 5 is made difficult, and the sealing ring 8 is made of synthetic resin to reduce the contact resistance when the outer peripheral surface of the column 4 comes into contact with the inner peripheral surface of the seal ring 8. Therefore, the pillar 4 is not damaged.

Further, the mounting cylinder 2 has a tapered guide groove 23 extending axially upward from a lower end edge thereof to guide the engaging pin 7, and a circumferential direction from an upper end portion of the guide groove 23. When the columnar body 4 is pulled out to the pull-out position, the engagement pin 7 is provided with a hook-shaped locking groove 24 that extends to the outside and restricts axial movement and circumferential movement of the engagement pin 7. Guided by the groove 23, the pillar 4 is angularly rotated so that the engaging pin 7 is engaged with the locking portion 24a of the hook-shaped locking groove 24, and the pillar 4 is held in the pulled-out position. ing. The mounting cylinder 2 may be a separate body from the outer cylinder 1 as shown in FIG. 1 or may be an integral body.

Further, in the figure, 9 is a cap fixed to the upper end portion of the column body 4, and 10 is a handle which is held in the cap 9 so as to be pulled out.

In the fence post configured as described above, the outer cylinder 1 is buried in the ground as shown in FIG. 4, and the flange portion 21 of the mounting cylinder body 2 provided on the upper part is exposed to the ground. When the column body 4 inserted into the outer cylinder 1 is unnecessary, the column body 4 is housed in the outer cylinder 1 and the cap 9 closes the opening of the mounting cylinder body 2. When the pillar 4 is pulled out to prevent a vehicle or a person from passing through, the pillar 10 is pulled out by the handle 10, and when the pillar 4 approaches the pulled-out position, the diameter of the pillar 4 is increased. The large fitting portion 41 enters the mounting cylinder 2, the engaging pin 7 engages with the guide groove 23, and is pulled out while being guided by the guide groove 23. When it contacts the upper end of the guide groove 23, the pillar 4 is angularly rotated to engage the engaging pin 7 with the engaging portion 24a of the hook-shaped locking groove 24, and the shaft of the pillar 4 is engaged. The columnar body 4 is held in the pulled-out position by restricting the directional movement and the circumferential movement.

Since the large-diameter fitting portion 41 is provided only in the lower part of the column body 4, the accommodated column body 4 approaches the pull-out position and the large-diameter fitting portion 41 is attached to the mounting cylinder body 2. The gap between the column body 4 and the mounting cylinder body 2 and the outer cylinder 1 is large until it enters the inside, and the movement resistance of the column body 4 is very small. The pull-out operation is easy, and when the column 4 is held at the pull-out position, the large-diameter fitting portion 41 faces the inner peripheral surface of the mounting cylinder 2 with a slight gap, and Since the gap is small, it is possible to significantly reduce the rattling in the lateral direction of the pulled out columnar body 4.

Further, since the large-diameter fitting portion 41, which faces the inner peripheral surface of the mounting cylinder 2 with a small gap, is provided with the discharge groove 5, the upper end opening of the mounting cylinder 2 is opened. Since the mud that invades inward can be discharged downward from the discharge groove 5, the movement resistance of the pillar 4 due to the mud can be minimized, and the outer peripheral surface of the pillar 4 can be less damaged by the mud. You can. Further, since the large diameter fitting portion 41 is provided only in the lower portion of the column body 4, the large diameter fitting portion 41 faces the inner peripheral surface of the mounting cylinder body 2 when the column body 4 is stored. The gap between the pillar 4 and the mounting cylinder 2 and the outer cylinder 1 becomes large until the pillar 4 is stored in the storage position after it disappears, and the movement resistance of the pillar 4 becomes very small. Therefore, in combination with the reduction of the movement resistance due to the mud, the storage operation of the column 4 can be facilitated.

Further, since the seal ring 8 for covering the discharge groove 5 is provided at the upper end open portion of the mounting cylinder body 2, it is possible to make it difficult for mud to enter the discharge groove 5, and to reduce the amount of intrusion. You can.

In the embodiment described above, the discharge groove 5 is provided in the large-diameter fitting portion 41 of the columnar body 4. However, in addition, as shown in FIGS. It may be provided both on the inner peripheral surface of the body 2. In this case, the discharge groove 5 provided in the large-diameter fitting portion 41 and the discharge groove 5 provided in the inner peripheral surface of the mounting cylinder 2 may be arranged at positions facing each other, but as shown in FIG. It may be arranged at a position displaced. Further, the discharge groove 5 may be provided only on the inner peripheral surface of the mounting cylinder 2 as shown in FIG.

Further, in the above description, the seal ring 8 is detachably provided in the upper end open portion of the mounting cylinder body 2. However, the seal ring 8 is detachably fixed using the mounting screw 3, for example. Alternatively, it may be integrated with the mounting cylinder 2 as shown in FIG. 8, or the seal ring 8 may be omitted.

[0020]

[Effect of the device]

 As described above, according to the present invention, the outer cylinder 1 buried in the ground, the mounting cylinder 2 provided inside the upper part of the outer cylinder 1, and the pillar 4 inserted into the outer cylinder 1 so as to be retractably inserted. A large-diameter fitting of a predetermined length that faces the inner peripheral surface of the mounting cylinder 2 with a small gap at the bottom of the pillar 4 when the pillar 4 is pulled out to the drawing position. Since the portion 41 is provided and the discharge groove 5 that opens vertically is provided on at least one of the outer peripheral surface of the large diameter fitting portion 41 and the inner peripheral surface of the mounting cylinder body 2, the column body 4 is pulled out to the pull-out position. At this time, the large-diameter fitting portion 41 provided at the lower portion of the column body 4 faces the inner peripheral surface of the mounting cylinder 2 with a small gap, and the gap in this facing portion can be reduced. The rattling of the column 4 can be reduced extremely. In addition, the large-diameter fitting portion 41 of the column body 4 is provided with a discharge groove 5 which is opened vertically so that the mud that has entered inward through the upper end opening of the mounting cylinder 2 is discharged from the discharge groove 5. Since it can be discharged to the lower side, it is possible to prevent mud from accumulating in the gap between the inner peripheral surface of the mounting cylinder 2 and the outer peripheral surface of the pillar 4, and the movement resistance of the pillar 4 due to mud can be minimized. Further, the large-diameter fitting portion 41 is provided in the lower portion of the column body 4 so as to face the inner peripheral surface of the mounting cylinder body 2 when the column body 4 is pulled out to the pulling-out position. Until the accommodated column 4 approaches the pull-out position and the large-diameter fitting portion 41 enters into the mounting cylinder body 2, and the large-diameter fitting portion 41 is connected to the inner peripheral surface of the mounting cylinder body 2. The gap between the column body 4 and the mounting tube body 2 and the outer tube 1 should be large until the columns 4 do not face each other and are stored in the storage position. Therefore, the movement resistance of the pillar 4 can be made extremely small. Therefore, in combination with the reduction of the movement resistance caused by the mud, the pillar 4 can be easily pulled out and stored, and the outer peripheral surface of the pillar 4 can be easily operated. The damage caused by the mud can be reduced.

Further, by providing the seal ring 8 covering the discharge groove 5 above the facing portion between the mounting cylinder 2 and the large-diameter fitting portion 41, it is difficult for dirt to enter the discharge groove 5. Therefore, the above-mentioned effects of mud can be reduced.

[Brief description of drawings]

FIG. 1 is a vertical sectional view of only a main part of a fence post according to the present invention.

FIG. 2 is a sectional view taken along line XX of FIG.

FIG. 3 is a side view in which only a mounting cylinder is partially omitted.

FIG. 4 is an explanatory diagram showing a usage state.

FIG. 5 is a sectional view showing only a main part of another embodiment.

6 is a cross-sectional view taken along line YY of FIG.

FIG. 7 is a sectional view showing only a main part of another embodiment.

FIG. 8 is a sectional view showing only a main part of another embodiment.

[Explanation of symbols]

 1 Outer cylinder 2 Mounting cylinder 4 Column 5 Discharge groove 8 Lid

Claims (2)

[Scope of utility model registration request] 1. An outer cylinder 1 which is buried in the ground, a mounting cylinder 2 which is provided inside the upper part of the outer cylinder 1, and a column 4 which is inserted into the outer cylinder 1 so as to be stored therein. When the column body 4 is pulled out to the lower portion of the column body 4, the mounting cylinder body 2
A large-diameter fitting portion 41 having a predetermined length is provided so as to face the inner peripheral surface of the mounting body 2 at a slight distance. , A fence post characterized by being provided with a discharge groove 5 that opens up and down. 2. The fence pole according to claim 1, wherein a seal ring 8 for covering the discharge groove 5 is provided above the facing portion between the mounting cylinder 2 and the large-diameter fitting portion 41.