JP4805079B2 - Exterior support column and installation method of exterior support column - Google Patents

Description

  The present invention relates to a column with an exterior that is covered with an exterior cylinder on a core column and is preferably used as a car stop, a road sign column, or the like, and a method for installing the column with an exterior.

  For example, as a pillar used as a car stop or road sign pillar, etc., with a core cylinder covered with an exterior cylinder, for example, a core shaft having a foundation buried area and a ground standing area, and a ground standing installation excluding at least the top of the core shaft A pole composed of one or more outer cylinders that are externally fitted to the region, and a crowned cylinder that is covered on the top of the core shaft so as to be in contact with the uppermost outer cylinder. It is disclosed (for example, Patent Document 1).

JP-A-7-259037

  However, in the conventional armored column as described in Patent Document 1, there is an attachment structure in which a cap (crown tube) provided at the upper end is fixed to the core column with a tapping screw in order to attach the outer tube to the core column. In the case of using such a mounting structure, the outer cylinder is formed of a flexible material, or a relatively large distance is provided between the outer surface of the outer cylinder and the outer surface of the core column for buffering. If the external cylinder is subjected to a strong external force, stress may be concentrated around the tapping screw, resulting in tearing and damage, or the work related to formation such as providing countersink holes may be complicated. there were.

  The present invention has been made in view of the above-described problems, and does not provide a column with an exterior that can easily form an exterior tube and a method for installing the column with an exterior, in which the exterior tube is not easily damaged. It is what.

In order to achieve the above object, the present invention is configured as follows. That is, the column with an exterior according to the present invention includes a core column and an exterior cylinder that covers the outer side of the core column, and is provided with a stepped portion that extends upward on the outer side surface of the core column, The outer cylinder is prevented from coming off by the engaging claws protruding inward from the inner surface of the outer cylinder ,
The engaging claw portion is provided with a locking member extending downwardly on the inner side of the outer cylinder and a tip of the locking member being bent toward the inner side. It is.

  According to the armored column according to the present invention, since the latching claw portion provided protruding from the inner surface of the outer cylinder is used to prevent the outer cylinder from coming off from the core column, even when a strong external force is applied to the outer cylinder. Since there is less risk of stress concentration compared to tapping screws, etc., it is difficult to cause damage to the outer cylinder, and it is possible to prevent the outer cylinder from coming off from the core column by simply providing a hooking portion on the outer cylinder. There is no need to provide it, and the formation of the outer cylinder can be simple.

Also, the Kakaritsume portion der those tip of the locking member is provided to be bent toward the inside with locking member downward on the inside of the outer tube is extended Runode exterior barrel If the applied external forces to prevent deformation and breakage of Kakaritsume portion by engaging member is deformed, Ru can be reduced the risk that more damage in the outer tube occurs.

  Further, the exterior cylinder is formed by attaching a cap to the upper end of the cylindrical body, and if the locking material is attached to the cap, the degree of freedom when attaching the locking material to the exterior cylinder is increased, It is preferable that the outer cylinder can be formed more easily.

The prior Symbol stepped portion, an outer diameter larger made a cap-like core pillar lid than the outer diameter of the core column body is the steel pipe, be formed provided on the upper end of the wick pillar body, the dimensions The locking material and the engaging claw portion can be formed in accordance with the size of the core pillar main body having small variations, and the formation of the outer cylinder can be simplified, which is preferable.

In addition, the method of installing the exterior post according to the present invention covers the outer cylinder with the outer cylinder provided with the engaging claw part protruding inward on the inner surface on the core pillar provided with the stepped portion that is expanded upward on the outer surface. While moving the engaging claw part below the stepped part to prevent the outer cylinder from coming off ,
The engaging claw portion is provided with a locking member extending downwardly on the inner side of the outer cylinder and a tip of the locking member being bent toward the inner side. It is.

  According to the installation method of the support column with the exterior according to the present invention, it is possible to prevent the exterior cylinder from coming off from the core column by using the engaging claw portion provided on the inner surface of the exterior cylinder, so that a strong external force is applied to the exterior cylinder. However, there is less risk of stress concentration compared to tapping screws, etc., and it is difficult to cause damage to the outer cylinder, and the outer cylinder is covered with a core column and can be prevented from coming off by the engaging claws. There is no need and the formation of the outer cylinder can be simple.

  According to the armored column according to the present invention, since the latching claw portion provided protruding from the inner surface of the outer cylinder is used to prevent the outer cylinder from coming off from the core column, even when a strong external force is applied to the outer cylinder. Since there is less risk of stress concentration compared to tapping screws, etc., it is difficult to cause damage to the outer cylinder, and it is possible to prevent the outer cylinder from coming off from the core column by simply providing a hooking portion on the outer cylinder. There is no need to provide it, and the formation of the outer cylinder can be simple.

  Moreover, according to the installation method of the external column according to the present invention, it is possible to prevent the external cylinder from being detached from the core column by using the engaging claw portion provided on the inner surface of the external cylinder, so that a strong external force is applied to the external cylinder. Even in the case, there is less risk of stress concentration compared to tapping screws, etc., and it is difficult to cause damage to the outer cylinder. There is no need to provide it, and the formation of the outer cylinder can be simple.

  BEST MODE FOR CARRYING OUT THE INVENTION The best embodiment according to the present invention will be specifically described below with reference to the drawings.

  FIGS. 1A and 1B show an embodiment of an external support post according to the present invention, in which FIG. 1A is a front view and FIG. 1B is a longitudinal sectional view. First, in (a), a column 10 with an exterior is formed by covering a core column (not shown) with an exterior cylinder 1 made of a synthetic resin having elasticity as a whole over the entire periphery. Only is made visible. The support column 10 with the exterior in this embodiment is used as a road sign pillar standing from the road and guiding the line of sight of the driver of the vehicle and the like, and the exterior cylinder 1 is a reflection having a retroreflective property near the upper end. Sheet R is adhered.

  Next, in (b), the metal core pillar 2 is provided inside the outer casing 1. The core column 2 is provided with a steel cap-shaped core column lid 22 fixed to the upper end of a core column main body 21 which is a coated steel pipe. The outer diameter of the core column lid 22 is the outer diameter of the core column main body 21. By being made larger, the step portion 3 is provided at the boundary portion between the core column main body 21 and the core column lid body 22 on the outer surface of the core column 2. On the other hand, the outer cylinder 1 is formed by fixing a cap 12 formed thicker than the cylindrical body 11 to the upper end of the cylindrical body 11, and the inner surface of the outer cylinder 1 and the outer surface of the core column 2. There is a distance D between and. From the cap 12, a locking member 5 made of spring steel extends downward from the inside of the cylindrical body 11, and the front end of the locking member 5 serves as a locking claw portion 4 bent inward. ing.

  Since the engaging claws 4 are bent inward, even when an external force is applied to the outer cylinder 1, the outer cylinder 1 is pulled out of the core column 2 by the engaging claws 4 being caught by the stepped portion 3. However, even when a strong external force is applied to the outer cylinder 1, the outer cylinder 1 is fixed or removed around the tapping screw as compared to the case where the outer cylinder 1 is directly fixed to the core pillar 2 using a tapping screw or the like. This prevents the stress from concentrating on a specific portion related to the stopper, and prevents the outer casing 1 from being damaged.

  The locking member 5 can be attached to the inner side surface of the cap 12 by fastening with a fastening means such as a rivet or by using a bonding means such as an adhesive. At the time of molding, a part of the locking member 5 is embedded in the cap 12 at the same time. With this configuration, the locking member 5 is attached to the cap 12 that is thicker than the cylindrical body 11, and the risk of damage to the cylindrical body 11 is further reduced, and the locking member 5 is attached to the cap 12, The degree of freedom when attaching the locking material 5 to the outer cylinder 1 such as by eliminating the complicated work of inserting the locking material 5 deeply into the outer cylinder 1 by attaching the cap 12 to the cylindrical body 11. And the formation of the outer cylinder 1 can be further simplified.

  In this embodiment, the cap 12 is formed by injection-molding a synthetic resin having elasticity, and the locking member 5 is inserted into the mold in advance and molded at the time of injection molding. It can be firmly integrated. Further, a return portion may be provided in a portion embedded in the cap 12 of the locking member 5 to prevent the cap 12 from coming off.

  As long as the outer cylinder 1 can be provided with the locking member 5, the material to be formed is not particularly limited. However, when used as an elastic wheel stopper, a synthetic resin having elasticity, such as a synthetic rubber molded product, is used. It is preferably formed using a rubber chip molded product, an elastomer such as polyurethane. High elasticity is provided by the synthetic resin having such elasticity and the interval between the outer cylinder 1 and the core column 2, and elasticity against collisions of pedestrians, bicycles, vehicles, and the like is provided. The exterior cylinder 1 may be integrally formed, or may be formed by attaching a cap 12 as a separate body to the cylindrical body 11 as in the above embodiment. When formed separately, the cylindrical body 11 and the cap 12 are preferably formed using the same material. When the synthetic resin is attached to each other, it is preferably attached by welding, such as ultrasonic welding or rotational fusion. Wearing etc. can be used suitably.

  FIGS. 2A and 2B show an embodiment of a method for installing a column with an exterior according to the present invention. FIG. 2A is a perspective view for performing an attaching operation, and FIGS. 2B and 2C are for attaching an exterior cylinder. It is a longitudinal cross-sectional view at the time of installation. First, in (a), the core pillar 2 is a support | pillar which formed the guard rail, changes a guard rail into a vehicle stop, and installs it. First, the beam plate P and the bolt / nut B to which the beam plate is attached are removed from the core column 2 to isolate the core column 2. As in the case shown in FIG. 1, the core pillar 2 is fixedly welded to the upper end of the core pillar body 21 with a core pillar lid body 22 having an outer diameter larger than that of the core pillar body 21 so that the core pillar body 21 and the core pillar lid are fixed. A step portion is formed by the body 22. The outer cylinder 1 is covered and attached from above the core pillar 2.

  Next, in (b), the locking member 5 provided on the inner side of the outer tube 1 is made of spring steel, and the front end is bent to form the engaging claw portion 4. The interval between the engaging claws 4 is made smaller than the outer diameter of the core column lid body 22 and is bent at an angle that forms an acute angle with the locking member 5. The inner diameter of the cylindrical body 11 is larger than the outer diameter of the core column main body 21, and a space is provided between the cylindrical column body 21 and the locking member 5. As shown in (c), when the engaging claw portion 4 hits the core column lid body 22, it can be shrunk and passed, and the outer cylinder 1 is further covered, and as shown in FIG. After the tip of the 4 passes through the core column lid body 22, the stepped portion 3 expands and the tip of the engaging claw portion 4 is hooked on the stepped portion 3, thereby preventing the outer cylinder 1 from coming off from the core column 2. Since the engaging claw portion 4 is bent at an acute angle with respect to the locking member 5, it can be easily passed, and after being caught, it is sandwiched between the tubular portion 11 and the core column main body 21, and the outer cylinder. 1 is not easily pulled upward.

  FIG. 3 is a longitudinal sectional view showing an example of a modification of the engaging claws 4. The engaging claw portion 4 is provided so as to protrude from the inner surface of the outer tube 1 to the inside in a ring shape. The outer cylinder 1 is made of a thermoplastic synthetic resin having elasticity, and the engaging claws 4 are integrally formed at the same time when the outer cylinder 1 is molded. The engaging claw portion 4 has an inner diameter smaller than the outer diameter of the core column lid body 22 of the core column 2, but is deformed by having elasticity when covering the outer cylinder 1 from above the core column 2. It can be easily moved below the step portion 3 through the core column lid body 22. The engaging claw portion 4 that has moved below the stepped portion 3 has its tip pointed upward so that it does not easily come off even when an external force is applied to the exterior cylinder 1.

It is explanatory drawing which shows one Embodiment of the support | pillar with an exterior concerning this invention. It is explanatory drawing which shows one Embodiment of the installation method of the support | pillar with an exterior concerning this invention. It is a longitudinal cross-sectional view which shows the reference example of the installation method of the support | pillar with an exterior concerning this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Exterior cylinder 11 Tubular body 12 Cap 2 Core pillar 21 Core pillar main body 22 Core pillar lid body 3 Step part 4 Engagement part 5 Locking material 10 Exterior support pillar

Claims (4)

A core column and an exterior cylinder that covers the outside of the core column, a stepped portion that is extended upward is provided on the outer surface of the core column, and protrudes inward from the stepped portion and the inner surface of the exterior tube. The outer claw part prevents the outer cylinder from coming off ,
The engaging claw portion is provided with an engaging material extending downwardly on the inner side of the outer cylinder, and the distal end of the engaging material being bent inward. With prop. The column with an exterior according to claim 1 , wherein the exterior cylinder is formed by attaching a cap to an upper end of a cylindrical body, and the locking member is attached to the cap. The step portion is formed by forming a cap-shaped core column lid body having an outer diameter larger than an outer diameter of a core column main body , which is a steel pipe, provided at an upper end of the core column main body. Item 3. A pillar with an exterior according to item 1 or 2 . Cover the core column with the stepped portion with the upper part extended on the outer side with the outer cylinder with the engaging claw part protruding inward on the inner surface, and move the engaging claw part below the stepped part. To prevent the outer cylinder from coming off ,
The engaging claw portion is provided with an engaging material extending downwardly on the inner side of the outer cylinder, and the distal end of the engaging material being bent inward. The installation method of the column with a head.

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