JPS6217553Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a handrail attachment device for attaching the legs of a handrail to a building frame, and particularly to a handrail attachment device that allows the handrail to be replaced.

For handrails installed on the roof of a building, anchors that serve as the legs of the handrail are generally set up on the building frame, the handrail posts are fitted into these anchors, the posts and anchors are welded, and then mortar is applied to the locations where the support posts are installed on the building frame. It was installed by stuffing.

However, such an installation method requires welding of the struts and anchors at the construction site and filling of the frame with mortar, making the installation work cumbersome.
In addition, rainwater, etc. often entered the support locations through the gaps between the concrete of the frame and the mortar filled in the support locations, causing corrosion of the metal fittings embedded in the support locations. . Furthermore, when replacing an old handrail, the height of the handrail could not be adjusted because the anchors could not be replaced.

Conventionally, this type of handrail mounting device has been designed to clamp the lower part of a plate-shaped body such as a glass plate on both the front and back sides using a fixing member provided at the bottom of the fitting groove of the molded material.
There is also known a device in which both the front and back sides of the plate-like body are held between the front and back sides of the plate by means of a fixing wedge that is fixed to the mold material at the upper part of the fitting groove (Japanese Utility Model Publication No. 110712/1987). However, since this mounting device only supports the object to be supported, such as a glass plate, on both the front and back sides, it is not stable enough to support the legs of handrails, which require relatively strong support strength. In addition, when the thickness of the plate-shaped body differs, there is a problem that the position of the embedded screw for fixing the fixing wedge or the fixing member must be changed each time.

The present invention was developed by focusing on the above-mentioned problems, and is capable of firmly supporting the legs of a handrail in a stable state, and is flexible depending on the thickness of the legs, and is easy to install. Installing handrails that do not require on-site welding or mortar filling, can prevent rainwater, etc. from entering the place where the support is installed, and can be easily replaced and the height of the handrail can be adjusted. The purpose is to provide equipment.

The present invention will be explained below based on embodiments shown in the drawings.

In Figures 1 to 3, 1 is a box-like structure, which is made up of a rectangular bottom plate 2 and four wall plates 3 erected parallel to each side of the bottom plate 2, and is open at the top. , embedded in the frame 4. The bottom plate 2 is
It is welded to a plurality of reinforcing bars 5 of the frame 4 and is positioned horizontally. Each wall plate 3 is inclined outward by the same angle (θ) with respect to the normal 6 of the bottom plate 1, so that the space 7 of the box body 1 formed by the bottom plate 2 and the wall plate 3 is It has an inverted eight-shaped vertical cross section with an area wider than the bottom area.

In the space 7 of the box body 3, four bolts 8 are provided corresponding to the wall plates 3 individually. Each bolt 8
is welded to the bottom plate 2 at its lower end and in the illustrated example extends parallel to the corresponding wall plate 3.

Each wall plate 3 is welded to the bottom plate 2 at its lower end. Further, the same type of scale (not shown) is formed in the vertical direction on the inner surface of each wall plate 3.

This box body 1 may be attached integrally with the frame body 4 when it is formed, or may be attached to the frame body 4 after the frame body 4 is formed. To attach the box body 1 to the frame body 4 after forming the frame body 4, for example, first form the lower part of the frame body 4, then weld the bottom plate 2 of the box body 1 to the reinforcing bars 5, and then finish the upper part of the frame body 4 with mortar. That's fine.

Reference numeral 10 denotes a wedge member provided individually on each wall plate 3, one of which is representatively shown in FIG.
vertical walls 11, 12 to three horizontal walls 13, 14, 1
5 is integrated into a wedge-shaped cross section.
The outer surfaces of the vertical walls 11 and 12 are inclined surfaces that are inclined by an angle (θ) equal to the inclination angle (θ) of the wall plate 3 of the box body 1 with respect to the normal line 6. The vertical wall 11 protrudes beyond the horizontal wall 13 located at the top, and elongated holes 16 extending vertically are formed on both sides of the protruding portion. Each side wall 13, 14, 15
A hole 17 is formed in the hole 17 through which the bolt 8 passes.

Reference numeral 20 indicates a leg portion of a handrail support column, which is made to have a rectangular cross section. Among the wall members 21, 22, 23, and 24 forming this leg portion 20, a plurality of holes 25 are formed in a plurality of rows in the vertical direction in the wall members 21 and 22 that face each other with a narrow interval. ing. Hole 24 formed in wall member 21 and wall member 2
The holes 25 formed in 2 face each other.

The upper surface of the frame 4 is finished as an inclined surface that slopes to one side in the width direction as shown in FIG. 2, and as shown in FIG. A groove 26 extending in the inclination direction (width direction) of the upper surface is formed.

Reference numeral 27 denotes a draining cover provided on the upper surface of the frame 4, and in the illustrated example, it is composed of two cover members 27a and 27b located in the width direction of the frame 4.
Each cover member 27a, 27b is formed with a recessed part 31 that is slightly larger than one half of the cross-sectional area of the leg part 20, and after the leg part 20 is attached to the box body 1, the recessed part 31 With the portion 20 fitted, the ends on the side of the recessed notch 31 are folded as shown by broken lines in FIG. 2 to connect them to each other. Connecting part 27
c is covered with a sealant (not shown). Among the ends of the cover 27, the wall members 21 and 22 of the leg portion 20
The side ends are bent into each groove 26 and the leg 2
The ends of the wall members 23 and 24 are bent downward along the outer shape of the frame 4.

In this mounting device, first, the leg portion 20 is erected from the center of the upper surface of the bottom plate 2, and each wall member 21 of the leg portion 20,
A wedge member 10 is placed between 22, 23, 24 and each wall plate 3 of the box body 1, and the bolt 8 is inserted into the hole 17 with the vertical wall 11 facing the leg 20 and the long hole 16 facing upward. Intervening by Then,
A nut 9 is screwed into each bolt 8 to push each wedge member 10 downward (towards the bottom plate), and the leg portion 20 is held under pressure by the pair of wedge members 10 facing each other.
Next, the bolt 28 is inserted into the elongated hole 16 of the wedge member 10 and any hole 25 of the leg 20 that face each other with a narrow interval, and the nut 29 is screwed into the bolt 28, so that the wedge member 10 and the leg 20 are separated. All you have to do is integrate them.

In this way, the inclination angle (θ) of the wall plate 3 of the box body 1 with respect to the normal line 6 and the vertical wall 1 of the wedge member 10 can be adjusted.
Since the angles (θ) formed by 1 and 12 are the same, the column is held parallel to the normal 6. In addition, the hole 17 of the wedge member 10 is connected to the bolt 8 fixed to the box body 1.
Since the wedge member 10 is designed to be inserted through the box body 1, when legs 20 of different thicknesses are used, the wedge member 10 is inserted through the box body 1.
The leg portions 20 are only located above and below within the
Even if the thicknesses of the wedge members 10 are slightly different, each wedge member 10 can stably support the leg 20.

Note that when pushing in each wedge member 10 by screwing the nut 9 into the bolt 8, the pushing amount of each wedge member 10 can be determined using a scale (not shown) formed on the inner surface of each wall plate 3. It is desirable to make them the same. In this way, the leg portion 2 in the space portion 7
The position of 0 will not be moved by pushing the wedge member 10.

After the legs 20 are attached to the mounting device as described above, the cover 27 is placed over the upper surface of the frame 4, the cover 27 is sealed in the groove 26 with the sealing material 30, and the recess of the cover 27 through which the leg 20 passes is sealed. The cutout 31 may be sealed with the sealant 32, and the connecting portion 27c of the cover 27 may be coated with the sealant. In this way, it is possible to prevent rainwater etc. from entering the space 7, and the box 1, the bolt 8 and the wedge member 10 can be prevented from entering the space 7.
It is possible to prevent corrosion such as

In the above-mentioned mounting device, the height of the handrail can be adjusted by adjusting the length of the leg 20 to an appropriate value. This can be done by keeping the handrail in a state where the bottom surface of the leg portion 20 is separated from the top surface of the bottom plate 2 by an appropriate distance using a spacer or the like.

The leg 20 may be the lower part of a handrail post, but it may also be an anchor into which the post is fitted. If the leg portion 20 is an anchor, first attach the anchor to the mounting device, cover the top surface of the frame 4 with the cover 27, and then attach the lower part of the support column 33 as shown by the two-dot chain line in FIGS. 1 and 2. Fit it into the anchor, fix both with bolts, etc., and insert it into the hole 3 of the cover 27 and between the lower part of the column 33 and the anchor.
1 may be sealed with a sealing material 32.

Since the leg portions 20 are held under pressure by the wedge members 10 facing each other, it is not necessary to integrate them with the wedge members 10 using bolts or the like. One of the wedge members 10 and/or the wall member 22 and the other wedge member 10 may be separately integrated with bolts. In this case, the holes 25 of the leg portions 20 may be screw holes, but plates having screw holes corresponding to the holes 25 are installed inside the wall members 21 and 22, respectively, as shown by two-dot chain lines in FIG. It is preferable to provide the bolt and the screw hole in one piece, since this increases the strength of the connection between the bolt and the screw hole.

As described above, according to the present invention, there is a box body with an upward opening formed by a bottom plate and four wall plates inclined outward at the same angle with respect to the normal line of the bottom plate, and an inclination of the wall plates with respect to the normal line. 4 wedge members having a pair of vertical walls inclined at the same angle as the angle, and connecting both vertical walls with a plurality of horizontal plates, and bolts extending parallel to the wall plates on the bottom plate of the box body. are fixed in correspondence with each wall plate, holes are formed in the horizontal plate of each of the wedge members through which the bolts pass, and each of the wedge members is pushed into the bottom plate side of the box body and nuts are screwed into each bolt. Since the legs of the handrail are held under pressure by each of the wedge members, the legs of the handrail can be stably and firmly supported without welding the handrail to the mounting device at the construction site. The leg can be reliably supported regardless of the thickness of the leg.

Furthermore, by loosening the nut, the clamping pressure on the legs by the opposing wedge members can be relaxed, so the handrail can be replaced, and in this case, the height of the new handrail can be adjusted at the same time.

Furthermore, by closing the upper part of the box body with a cover and sealing material, it is possible to prevent rainwater, etc. from entering the box body, and it is also possible to prevent corrosion of bolts, wedge members, and even the box body itself. can.

[Brief explanation of the drawing]

FIG. 1 is a vertical sectional view showing an embodiment of the mounting device according to the present invention, and FIG. 2 is a -
3 is a cross-sectional view taken along the line -- in FIG. 1, and FIG. 4 is a perspective view showing an embodiment of the wedge member. 1: Box body, 2: Bottom plate, 3: Wall plate, 4: Frame,
6: Normal, 7: Space, 8: Bolt, 9: Nut, 10: Holder, 20: Leg.

Claims (1)

[Scope of utility model claims] A box body 1 with an upward opening formed by a bottom plate 2 and four wall plates 3 that are inclined outward at the same angle with respect to the normal 6 of the bottom plate 2, and the inclination angle of the wall plates 3 with respect to the normal 6 is the same. A pair of vertical walls 11, 1 inclined at an angle
2, and four wedge members 10 in which both vertical walls 11, 12 are connected by a plurality of horizontal plates 13, 14, 15, and a wedge member 10 is provided on the bottom plate 2 of the box body 1 in parallel with the wall plate 3. Extending bolts 8 are fixed in correspondence with each wall plate 3, and the horizontal plates 13, 14,
15 is formed with a hole 17 through which the bolt 8 passes,
Each wedge member 10 is pushed into the bottom plate 2 side of the box body 1 and a nut 9 is screwed into each bolt 8, so that each wedge member 10 holds the leg portion 20 of the handrail under pressure. Handrail attachment device.