JP3305512B2 - Mounting structure of cap for prop - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mounting structure for a column cap such as a road protective fence.

[0002]

2. Description of the Related Art Conventionally, as a mounting structure for a pillar cap of this type, as described in Japanese Utility Model Publication No. 53-8197, for example, a conical leaf spring is fixed to the inner surface of a cap body, and It is known that an upward flange having a large number of cuts is pressed against the inner surface of a hollow support by the resilience of a leaf spring. Further, as described in Japanese Utility Model Laid-Open Publication No. 60-18127, an elastic material having a substantially W-shaped or inverted W-shaped cross section is attached to the inner surface of the cap body, and the elastic material is pressed against the inner surface of the hollow column by the resilience thereof. What was done is known. Further, as described in Japanese Utility Model Laid-Open No. 5-75357, a leaf spring is locked to a support leg projecting from the inner surface of the cap body, and the leaf spring and the support leg are brought into contact with the inner surface of the hollow pillar by the resilience of the leaf spring. Pressed ones are known.

[0003]

However, in such a conventional mounting structure for a column cap, since a leaf spring or an elastic material for fixing the cap is merely pressed against the inner surface of the hollow column, an external force is applied. However, there is a problem that a slip occurs between the distal end portion of the leaf spring or the elastic material and the inner surface of the column, and the cap is easily detached from the column. In particular, when a vehicle or the like collides with the column, the impact causes the cap to jump out of the column, which may hit a pedestrian or the like and cause a secondary disaster.

An object of the present invention is to provide a mounting structure for a column cap, which solves the conventional problems.

[0005]

In order to solve the above-mentioned problems, according to the present invention, there is provided a mounting structure for a column cap, wherein a cap is fitted to an upper end of a hollow column, and the cap is engaged with an inner surface of a column upper end in a circumferential direction. A groove is provided, the cap has a plurality of leaf springs mounted on the cap body having a circumferential holding groove on the outer peripheral surface, and the leaf springs are upwardly spaced from the lower end of the cap body at appropriate intervals in the circumferential direction of the cap body. The protruding halfway portion is bent inward, the front end portion is directed obliquely outward, and the front end portion of the leaf spring is pressed against the inner surface of the support post by its resilience and is locked in the locking groove. The halfway bent portion is pressed against the holding groove of the cap body.

[0006]

The distal end of the leaf spring is pressed against the inner surface of the column by the resilience and is locked in the locking groove, and the bent portion is pressed against the holding groove of the cap body. The plate spring is held in a state of being pressed and locked in the locking groove on the inner surface of the support column even if external force is applied, or the cap is not detached from the support column. In addition, the impact does not cause the cap to jump out of the column and cause a secondary disaster.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. In the drawings, reference numeral 1 denotes a column, which has a circular cross section,
It is a metal hollow body of an appropriate shape such as a square, and usually forms a support of a road protective fence. A locking groove 11 is provided in the inner surface of the upper end of the column 1 in the circumferential direction. The locking groove 11 may be formed in an appropriate shape such as a concave groove, and may be formed so that a distal end portion 25 of a leaf spring 22 described later can be locked.

Reference numeral 2 denotes a cap, which is formed of a metal cap body 21 and a plurality of metal leaf springs 22 mounted on the cap body 21. Cap body 21
Has a shape that can be fitted into the upper end so as to close the upper end of the column 1, and a retaining groove 23 for a leaf spring 22 is provided in the circumferential direction on the outer peripheral surface inserted into the column 1. Also, the cap body 21 is usually hollow and has a lower end opened,
The base of the leaf spring 22 can be mounted inside.

The leaf spring 22 is disposed at the lower end of the cap body 21 so as to protrude at appropriate intervals in the circumferential direction. The leaf spring 22 protrudes upward from the lower end of the cap body 21, the protruding halfway portion is bent inward to form a bent portion 24, and the tip portion 25 is directed obliquely outward. Further, the bent portion 24 is provided on the cap body 21.
Is fitted in the holding groove 23.

Generally, as shown in FIG. 2, the leaf spring 22 is formed in a strip shape having at least both ends bent in the same direction in a predetermined shape, and a plurality of the strip springs 22 intersect at their central portions and stop. And the center of the leaf spring 22 is
It is inserted into the lower end, and both ends protrude out of the cap body 21 and are attached. The leaf spring 22 may be mounted with the bent portion 24 locked by the holding groove 23 of the cap main body 21 due to the resilience thereof, or may be mounted with the base fixed to the inner surface of the cap main body 21.

In the case shown in FIG. 2, three strip-shaped leaf springs 22 are intersected, and both ends of the leaf spring 22 project from the lower end of the cap body 21 so as to divide the circumferential direction into six equal parts. However, two strip-shaped leaf springs 22 similar to those described above are used.
May be crossed, and both ends of the leaf spring 22 may be projected from the lower end of the cap body 21 so as to divide the circumferential direction into four equal parts. Alternatively, the band-shaped leaf spring 22 is 3
More than one sheet may be provided to intersect.

The leaf spring 22 is a single plate formed by integrally projecting a plurality of plate pieces radially from the peripheral edge of the substrate, and each plate piece is bent as described above to have a bent portion and a tip portion. And
The board may be mounted on the lower end of the cap body 21 so that the plate piece projects from the lower end of the cap body 21. Further, the plurality of leaf springs 22 may be formed as plate pieces, respectively, and their base portions may be independently fixed to the cap body 21 so as to project from the lower end of the cap body 21.

To obtain the mounting structure of the present invention by attaching the cap 2 to the upper end of the column 1, as shown in FIG.
May be pressed into the upper end of the column 1 against the resilience of the leaf spring 22, and the upper end of the column 1 may be closed by the cap body 21.

That is, when the cap 2 is pressed into the column 1, first, the distal end portion 25 of the leaf spring 22 is pressed against the inner surface of the column 1 by the resilience thereof, and the bent portion 25 is formed into the holding groove 23 of the cap body 21. Is pressed against and locked.
When the cap 2 is further pressed into the column 1, the leaf spring 22
Of the cap 1 is fitted into the locking groove 11 on the inner surface of the column 1 and locked.
The leaf spring 22 is held in a state where the leaf spring 22 is pressed against and locked.

[0015]

As described above in detail, in the mounting structure of the column cap according to the present invention, the distal end of the leaf spring is pressed against the inner surface of the column by the rebound resilience and is locked in the locking groove, and the bent portion is formed. Since the plate spring is pressed against the holding groove of the cap body, the plate spring is held in a state of being pressed and locked in the locking groove on the inner surface of the column even when the vehicle or the like collides with the column or other external force is applied. The spring firmly fixes the cap body in the column, and the cap does not come off the column. In addition, the impact does not cause the cap to jump out of the column and cause a secondary disaster.

A leaf spring protrudes upward from the lower end of the cap body at an appropriate interval in the circumferential direction of the cap body, the protruding halfway portion is bent inward, and the tip portion is directed obliquely outward. Since the cap is used, the cap can be easily pressed into the support column against the resilience of the leaf spring without using any tools, and the mounting workability is good.

[Brief description of the drawings]

FIG. 1 is a partially cutaway sectional view showing an embodiment of a mounting structure for a column cap according to the present invention.

FIG. 2 shows a cap in the mounting structure of FIG. 1,
(A) is a front view, (B) is a side view, and (C) is a bottom view.

[Explanation of symbols]

 Reference Signs List 1 support 11 locking groove 2 cap 21 cap body 22 leaf spring 23 locking groove 24 bent portion 25 tip

Claims (1)

(57) [Claims] 1. A cap is fitted to an upper end of a hollow support, and a locking groove is provided on an inner surface of an upper end of the support in a circumferential direction.
A plurality of leaf springs are mounted on the cap body having a circumferential holding groove on the outer peripheral surface, and the leaf springs are projected upward from the lower end of the cap body at appropriate intervals in the circumferential direction of the cap body, The protruding halfway portion is bent inward, the tip end is directed obliquely outward, and the tip end of the leaf spring is pressed against the inner surface of the support post by its resilience and is locked in the locking groove. Is a mounting structure for a column cap that is pressed against the holding groove of the cap body.