JP2970901B2 - Footrest mounting device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stepped portion, a side portion and a leg portion located on both sides of the stepped portion, and a metal core covering the stepped portion, the side portion and the leg portion, and a synthetic resin covering the same. Formed with
The present invention relates to a device for mounting a footrest attached to a shore or a seawall.

[0002]

2. Description of the Related Art Conventionally, a foot part, a side part and a leg part located on both sides thereof are formed, and the step part, the side part and the leg part are formed of a cored bar and a synthetic resin covering the core. Examples of footrests that can be attached to manholes, seawalls, etc.
As shown in the official gazette, hook-shaped legs are extended from both sides, and the hook-shaped legs are inserted into holes for fixing footrests formed in walls such as manholes and seawalls. There is one in which a footrest is fixed (hereinafter, referred to as the former).

Further, as shown in Japanese Utility Model Laid-Open Publication No. Hei 6-71899, a leg with a sharpened tip is extended from both sides, and this leg is driven into a wall such as a manhole or a seawall to be used as a footrest. There is one that fixes the tool (hereinafter referred to as the latter).

[0004]

However, in the former case, the hook-shaped legs are necessarily inserted into holes for fixing footrests formed in walls such as manholes and seawalls. It is necessary to drill a large hole, which is troublesome.

In the latter case, it is necessary to drive the legs into a wall such as a manhole or a seawall, which requires an excessive amount of force and requires skill to drive both legs evenly. There is a problem that it is troublesome. There is also a problem that replacement of both is difficult.

The present invention has been made in view of the above-mentioned problems of the prior art, and an object of the present invention is to provide an insert guide in advance in a concrete wall such as a manhole or seawall. By attaching and attaching a footrest to the footrest, an attempt is made to provide a footrest mounting device that is simple, easy and reliable to mount the footrest, has little risk of corrosion, and is easy to replace. Is what you do.

[0007]

SUMMARY OF THE INVENTION In order to achieve the above-mentioned object, an apparatus for attaching a foot-holding tool according to the present invention is a cylindrical body, which has a spring holding screw formed on the outer periphery thereof and is screwed to the screw. A retaining spring is disposed, a female screw is screwed on the inner periphery of the spring, and an insert guide made of synthetic resin having an enlarged diameter portion at the female screw inlet is inserted into a concrete wall such as a manhole or seawall. A screw, which is screwed into the outer periphery of the insert guide and screwed into the female screw of the insert guide, is fitted on the side part side, and a synthetic resin holding member having a flange formed at the base of the screw is inserted. A mandrel is further extended from the end of the leg, a screw is screwed into the extending portion, and a cap made of synthetic resin in which a female screw to be screwed with the screw is screwed is disposed at the end of the leg, and the holding is performed. By screwing the material into the insert guide, the footrest can be turned into a manhole or the like. It is characterized in that it has to be constant.

[0008]

1 and 2 relate to an embodiment of the present invention. FIG. 1 is a plan view showing a partially sectioned mounting of an assembled footwear, and FIG. 2 is a concrete wall. It is sectional drawing of the insert guide previously implanted in the inside.

[0009] In the drawings, reference numeral 1 denotes the entirety of a footrest, and the footrest 1 has side portions each having a leg 3 fixed in a concrete 2 such as a manhole or seawall. 4,
4 and a foot portion 5 disposed between the tip portions of the side portions 4 and 4.

The step portion 5 is formed by coating a linear cored bar 6 with a synthetic resin 7. The synthetic resin 7 is coated once from the central portion S of the foot portion 5 toward both ends. The synthetic resin 7 is provided with an unevenness for a non-slip 8 on its upper surface, and a corrugated grip 9 on its side surface. A reflector 10 is attached to the outer periphery of the resin 7.

The leg 3 and the side 4 are also formed by covering a straight metal core 6 (continuous with the foot 5) with a synthetic resin 7 (continuous with the foot 5). The core metal 6 further extends from the end of the leg 3, and a screw 11 is screwed into the extension.

Reference numeral 12 denotes a cap made of synthetic resin. On the inner periphery of the cap 12, a female screw 13 screwed with the screw 11 screwed to the cored bar 6 is screwed. The cap 12 may be formed by reinforcing the vicinity of the inner periphery where the female screw 13 is formed with a metal such as stainless steel.

Reference numeral 14 denotes a holding member made of a synthetic resin. A screw 15 is screwed around an outer periphery of the holding member 14 to be screwed with a female screw screwed on an inner periphery of an insert guide described later. A flange 16 is formed at the base of the screw 15, and the holding member 14 is inserted into the side part 4.

Reference numeral 17 denotes an insert guide made of a synthetic resin tubular body which has been previously implanted (at the time of producing a concrete wall) in a concrete 2 such as a manhole or a seawall. A spring 18 for retaining a spring is formed on the outer periphery of the guide 17, and a retaining spring 19 is screwed on the screw 18.
4 is formed with a female screw 20 to be screwed with the screw 15 provided at the bottom of the flange 16.
Is formed as an enlarged diameter portion 21 so as to be locked.

Since the footrest having the above-described structure is mounted on the concrete 2, first, the concrete 1 is installed in the concrete 2 such as a manhole or a seawall. The insert guides 17 which are opened at the inner wall of the hook 2 are implanted at predetermined intervals (the width of the leg 3 of the footrest 1). At this time, the concrete is inserted inside the insert guide 17.
Cap 2 as shown in Fig. 2 to prevent intrusion
It is preferable to cover the insert guides 2 and 23 at both ends of the insert guide 17. Next, the female screw 13 of the cap 12 is screwed into the screw 11 in a state where the holding member 14 is fitted toward the side portion 4 to form the footrest 1 in which the cap 12 and the leg 3 are integrated. The holding member 14 is rotatable with respect to the leg portion 3 but cannot move back and forth. The leg 3 of the footrest 1 is inserted into the insert guide 16 so that the tip of the cap 12 contacts the inner wall 20 of the insert guide 16.

Therefore, while inserting the cap 12 at the tip of the leg 3 of the footrest 1 into the inner periphery of the insert guide 16,
By rotating the holding member 14, the screw 15 screwed on the outer periphery of the holding member 14 is screwed with the female screw 20 screwed on the inner periphery of the insert guide 17 to continue the rotation of the holding member 14. As a result, the holding member 14 enters the insertion guide 17, and the flange 16 formed on the holding member 14 is brought into contact with the enlarged diameter portion 21 at the root of the female screw 20, so that the holding member 14 is strongly attached to the insertion guide 17. The fixing of the footrest 1 to the concrete 2 is completed. Note that the footrest 1
At the time when the fixing is completed, the end of the footrest 1 is covered with the protective cover 24 on the inner periphery of the concrete 2, so that the dirt entering the insert guide 17 is prevented and the appearance is improved. It becomes.

As described above, fixing the footrest 1 to the concrete 2 simply involves screwing the holding member 14 into the insert guide 17, so that the attachment of the footrest 1 is simple, easy and reliable. The insert guide 17 and the holding member 14 are made of synthetic resin, and the side portions 4 and the leg portions 3 are covered with the synthetic resin 7, so that there is little danger of corrosion. The insert guide 17 is held by screws 18. The retaining member 14 is securely retained by the retaining spring 19, so that the footrest 1 does not come off the concrete 2, and the holding member 14 is also retained by the cap 12, so that the footrest is retained. The holding member 14 does not come off from the base member 1. Further, the holding member 14 can be easily detached from the concrete 2 by loosening the holding member 14, so that the footrest member 1 can be easily replaced. A mounting device.

[0018]

According to the present invention, a screw for retaining a spring is formed on the outer periphery of a cylindrical body, a retaining spring screwed on the screw is arranged, and a female screw is screwed on the inner periphery. And an insert guide made of synthetic resin having an enlarged diameter portion at the female screw inlet is previously implanted in a concrete wall such as a manhole or seawall, and the insert guide is provided on the side and on the outer periphery. A screw to be screwed with the female screw is screwed and a synthetic resin holding material having a flange formed at the root of the screw is inserted, and a metal core is further extended from the end of the leg, and a screw is attached to the extended portion. A cap made of synthetic resin in which a female screw to be screwed with the screw is screwed is disposed at an end of the leg, and the holding material is inserted into the inserter.
The footrest is fixed to the manhole etc. by screwing it into the guide, so the installation of the footrest is simple, easy and reliable, and there is little danger of corrosion. The holding device does not come off, the holding material does not come off from the foot device, and the foot device can be easily replaced.

[Brief description of the drawings]

BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a plan view of a partly cross-section of an assembled footrest device.

FIG. 2 is a sectional view of an insert guide pre-planted in a concrete wall.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Footrest 2 Concrete 3 Leg 4 Side 5 Foot step 6 Core metal 7 Synthetic resin 11 Screw of core metal 12 Cap 13 Female screw of cap 14 Holding material 15 Screw of holding material 16 Flange 17 Insert guide 18 Screw for retaining spring 19 Spring for retaining 20 Internal screw of insert guide 21 Enlarged part

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-4-124394 (JP, A) JP-A-9-291553 (JP, A) JP-A-9-13408 (JP, A) 151942 (JP, U) Japanese Utility Model Hei 7-44214 (JP, U) Japanese Utility Model Application Showa 55-62652 (JP, U) Japanese Utility Model Showa 28-3617 (JP, Y1) (58) Field surveyed (Int. ⁶ , DB name) E02D 29/12 E06C 1/00-9/14

Claims (1)

(57) [Claims] 1. A stepping device comprising: a stepping portion, side portions and leg portions located on both sides thereof, wherein the stepping portion, the side portion and the leg portion are formed of a cored bar and a synthetic resin covering the cored bar. In a foot-holding tool to be attached to a shore or a seawall, a tubular body is provided with a spring retaining screw formed on the outer periphery thereof, a retaining spring screwed on the screw is disposed, and a female screw is threaded on the inner periphery thereof. And an insert guide made of synthetic resin having an enlarged diameter portion formed at the female screw inlet is implanted in advance in a concrete wall such as a manhole or seawall, and the insert is provided on the side and on the outer periphery. A screw that is screwed into the female screw of the guide is screwed, and a synthetic resin holding material having a flange formed at the root of the screw is inserted, and a metal core is further extended from the end of the leg portion. Screw on the
A cap made of synthetic resin having a female screw threaded with the screw is disposed at the end of the leg, and the holding member is screwed into the insert guide so that the footrest is fixed to a manhole or the like. A mounting device for a footrest tool, characterized in that: