JPH07927B2 - Handrail support device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a mounting device for a handrail prop around a balcony, rooftop, etc., stairs, corridor, etc.

[Conventional technology]

Handrails to be installed around balconies, rooftops, etc. are dependent on a plurality of handrail posts that are fixed upright on the structure of the building, and are used as a device to attach such handrail posts to the building body. Have proposed and used various devices.

These railing strut mounting devices are roughly divided into two types: one anchor bolt of approximately the same length as the handrail strut is fixed on the body, and the handrail strut is fixed to the body using this anchor bolt. And a steel plate called a base plate is fixed on the skeleton, and a relatively short anchor bolt fixed upright on the base plate is referred to as a cored bar whose outer peripheral portion is in contact with the inner peripheral portion of the handrail support column. After fixing the short support and fitting the handrail support to the core metal,
There is a method of holding the handrail support column on the body by fixing the handrail support column to the core metal using screws from the outside of the handrail support column.

[Problems to be Solved by the Invention]

In these known mounting devices for the railing for handrails, the method of using long anchor bolts is relatively simple in mounting device, but since one anchor bolt is used, backlash is likely to occur during use after mounting, and strength is high. I have a problem.

On the other hand, the method of using the core bar allows the handrail support to be fixed to the body relatively firmly, but the mounting device is complicated and the construction requires time, and it is difficult to adjust the mounting position of the core bar. However, if there is a slight misalignment, there is a lot of problems in construction such that the handrail support pillar cannot be externally fitted and fixed to the cored bar.

In view of such a current situation, the present invention is a mounting method for a handrail prop that can easily and accurately install a handrail propeller without requiring a high degree of precision in the components that make up the handrail prop. The purpose is to provide a device.

[Means for Solving the Problems]

In order to achieve the above-mentioned object, a supporting device for a handrail supporting column of the present invention is provided with a handrail supporting column having a hollow inside, an anchor bolt for vertically fixing the handrail supporting column on a skeleton, and a center of a bottom portion. A plurality of positioning protrusions are provided on the peripheral portion of the formed elliptical elongated hole, and a drainage hole is formed by cutting out a continuous portion of the side wall and the bottom portion, and the lower end portion of the handrail support post is formed on the bottom portion. A dish-shaped base plate to hold and a hollow with an arc-shaped tip along the axial direction on the outer peripheries of the elliptical pipe member having an inner diameter corresponding to the long hole of the base plate along the major axis and the minor axis. The projections are integrally provided so that each arcuate surface can be brought into contact with the inner peripheral wall of the handrail support column, and all arcuate surfaces are located on the same circumference drawn around the center of the pipe member. From a deformed tube with a cross-shaped cross section A core metal member that is characterized in being composed of said anchor bolt and screwed nut.

[Action]

The handrail support device according to the present invention comprises an anchor bolt of a predetermined length that is vertically erected vertically by a suitable means on a horizontal body for attaching the handrail, and the anchor bolt protruding above the body is waterproof. With the base plate through the rubber sheet, then the core metal member is loosely fitted, and the lower end portion of the core metal member is held in the base plate, the anchor bolt protruding from the upper end surface of the core metal member is inserted through the washer. The base plate and the core metal member are firmly fixed on the body by screwing the nuts and tightening the nuts.

At this time, the four elliptical holes formed in the base plate and the elliptical holes of the base plate and the four hollow protrusions formed in the core plate are brought into contact with each other so that the ellipses of the core plate are in contact with each other. Engages with the positioning protrusions provided on the peripheral edge of the anchor to prevent the core metal member from unnecessarily rotating when the nut is screwed into the anchor bolt. Since it is in the loose fitting state, the cored bar member can be slightly moved in the front-rear direction, the left-right direction, and the circumferential direction on the base plate, so that the position can be slightly adjusted.

Since the handrail support is externally fitted to the core metal member fixed in this way, the base end of the handrail support is located on the bottom upper surface inside the four peripheral walls of the base plate, and the handrail support is screwed to the core metal member. However, the core metal member is a hollow protrusion having an arcuate surface at each end along the axial direction on the outer peripheries facing the major axis and minor axis of the elliptical pipe member, and each arcuate surface is Since it is provided so as to be located on the same circumference drawn around the center of the pipe member, the handrail support pillar externally fitted to this core metal member has its inner wall in point contact with the arc-shaped surface of the core metal member. The contacts are flexible enough to allow a slight rotation.

Therefore, even if the cored bar member is slightly rotated by tightening the nut, the handrail support column can always be fixed in the normal position.

〔Example〕

An embodiment of a handrail support device according to the present invention will be described in detail below with reference to the accompanying drawings.

As shown in FIG. 1, the handrail support device of the present invention is basically an anchor bolt 2 having an appropriate length that is vertically installed on a frame 1 for attaching a handrail (not shown). , Base plate 5, core metal member 9, and nut
11 and a handrail support 12.

The anchor bolt 2 which is hung vertically on the body 1 has a hole of an appropriate diameter drilled in the body 1 by inserting a chemical anchor into the hole, and then the base end of the anchor bolt 2 is inserted and fixed in the chemical anchor. Alternatively, the grip anchor may be driven into the hole, and the base end portion of the anchor bolt 2 may be inserted and fixed in the grip anchor to be hung vertically. If possible, the erection method is not particularly limited.

The base plate 5 is a dish-shaped one in which a side wall 5b having a low height is provided along the peripheral edge of a bottom plate 5a having the same outer shape as that of the handrail support column 12 to be used, and the bottom plate 5a has a central portion at the center thereof. An elliptical elongated hole 6 for inserting the anchor bolt 2 is provided, and notches are provided at the connecting portions of the side walls 5b and the bottom plate 5a to form drainage holes 7, and rainwater flowing along the inside of the peripheral wall. Are formed so as not to be accumulated in the base plate 5, and a total of four positioning protrusions 8 also serving as detents are integrally formed on the peripheral portion of the elongated hole 6 so as to face the long axis and the short axis, respectively. Is protruding.

As shown in FIG. 3, the cored bar member 9 faces the long axis and the short axis of the elliptical pipe member 9a having an inner diameter corresponding to the elliptical long hole 6 formed in the bottom plate 5a of the base plate 5. A hollow projecting portion 9c having an arcuate surface 9b at the tip along the axial direction is formed on the outer circumference, and each arcuate surface 9b is located on the same circle C centered on the center O of the pipe member 9a. The cross-section is a cross-shaped deformed tube.

The handrail support column 12 is made of a hollow square pipe member with its upper end closed, and can be held on the bottom plate 5a with its outer peripheral portion abutting on the side wall 5b of the base plate 5, and
The inner wall surface is of a size capable of making point contact with the arcuate surface 9c at the tip of each protruding portion 9c of the core metal member 9, but the point contact with the cross-shaped protruding portion 9b of the core metal member 9 is made. A possible round pipe member can also be used as the rail for the handrail. In that case, the bottom plate of the base plate 5 naturally has a disc shape.

In the figure, 3 is a rubber sheet formed in the same shape as the bottom plate 5a of the base plate 5, and an elliptical elongated hole 4 for inserting the anchor bolt 2 is provided in the central portion.
Further, 10 is a washer that engages with the anchor bolt 2, 11 is a nut that is screwed into the anchor bolt 2, and 13 is a handrail post.
The screw for fixing 12 and the core metal member 9 is shown.

Hereinafter, a method of fixing the handrail support 12 on the body 1 using the member having such a configuration will be described.

First, an anchor bolt 2 is vertically suspended and fixed by a suitable means on a frame 1 to which a handrail is to be attached, and then a rubber sheet 3 and a base plate 5 are externally fitted to the anchor bolt 2 as shown in FIG. The mounting position of the base plate 5 is adjusted using the long holes 4 and 6.

Then, the mandrel member 9 is fitted onto the anchor bolt 2 with the elliptical pipe member 9a fitted to the elliptical elongated hole 6 of the base plate 5, and the base end of the mandrel member 9 is attached to the bottom plate of the base plate 5.
When it abuts on 5a, the projections 8 formed on the peripheral portion of the elongated hole 6 formed on the bottom plate 5a engage with the respective projecting portions 9b projecting in a cross shape on the outer peripheral portion of the pipe member to form the core. Although the gold member 9 is prevented from unnecessarily rotating in the circumferential direction, the protrusion 8 provided on the peripheral portion of the elongated hole 6 is provided on the peripheral portion on the major axis side as shown in FIG. Since the protrusion 8 to be provided is long in the arc (horizontal) direction and the protrusion 8 to be provided on the minor axis side is long in the vertical direction, the core metal member 9 can be mounted on the bottom plate 5a of the base plate 5 in the front-back, left-right and circular directions. The fixed position can be adjusted by moving it slightly in the circumferential direction.

When the core metal member 9 is externally fitted to the anchor bolt 2 in this manner, the tip of the anchor bolt 2 projects from the upper end surface of the core metal member 9, so the washer 10 is externally fitted to the projecting end portion of the anchor bolt 2. When the nut 11 is screwed and tightened, the tightening force of the nut 11 allows the rubber sheet 3, the base plate 5, and the core metal member 9 to be pressed and fixed onto the body 1.

At this time, the mandrel member 9 tries to rotate in the tightening direction by tightening the nut 11, but since the position is regulated by the protrusion 8, there is no unnecessary rotation.

Then, when the fixing of the core metal member 9 on the frame 1 is completed, the lower end opening of the handrail support column 12 is externally fitted to the core metal member 9, and the tip outer peripheral surface is made the inner peripheral surface of the side wall 5b of the base plate 5. While making contact, hold the tip on the top surface of the bottom plate 5a, and then screw in the screw 13 from the outer peripheral portion of the handrail support column 12,
The tip is engaged with the protruding portion 9b of the cored bar member 9 to integrally fix the both.

The inner peripheral wall of the handrail support column 12 is in contact with the protrusion 9c protruding in a cross shape of the core metal member 9, but the portion of each protrusion 9c in contact with the inner peripheral wall of the handrail support column 12 is formed in an arc shape 9b. Since it is point-contacted, it is easy to fit the handrail support column 12 onto the cored bar member 9 and the two can be smoothly engaged even if there is some deviation.

〔The invention's effect〕

INDUSTRIAL APPLICABILITY The handrail support device according to the present invention fixes the handrail support on the body with extremely few parts such as anchor bolts, base plates, core metal members and nuts. It can be performed, and the time required to construct the handrail can be significantly reduced.

In particular, in the present invention, the position of the base plate provided on the body can be adjusted with respect to the body within a predetermined range, and the core metal member provided in the base plate is also front and rear,
Since it is possible to adjust the position in the left and right and in the circumferential direction within a predetermined range, it is not necessary to return the mounting work one step back and adjust the mounting position like many handrail mounting devices. Since the tip surfaces of the protruding parts of the cored bar member that come into contact with the inner peripheral wall of the column are all provided on the same circumference, even if the outer fitting position of the handrail column on the cored bar member is slightly different, the contact points of both It has an advantage that they can be easily engaged with each other by slightly rotating in the circumferential direction for point contact.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a mounting device for a handrail strut according to the present invention, FIG. 2 is a partially cutaway front view showing a mounting state, and FIG. 3 is a core constituting the mounting device for a handrail strut according to the present invention. FIG. 4 is a cross-sectional view of the gold member, and FIG. 4 is a cross-sectional view taken along the line AA in FIG. 1 …… Skeletal body 2 …… Anchor bolt 3 …… Rubber sheet 5 …… Base plate 6 …… Long hole 7 …… Drain hole 8 …… Positioning protrusion 9 …… Core metal member 9a …… Long hole 9b …… Arc surface 9c …… Projection 11 …… Nut 12 …… Handrail support 13 …… Screw

Claims (1)

[Claims] 1. A handrail support column having a hollow inside, and an anchor bolt for vertically fixing the handrail support column on a body.
A plurality of positioning protrusions are provided on the peripheral portion of an elliptical elongated hole formed in the center of the bottom portion, and a drainage hole is formed by cutting out a connecting portion between the side wall and the bottom portion, and the handrail support column is provided on the bottom portion. A base plate holding the lower end of the base plate, and an elliptical pipe member having an inner diameter corresponding to the long hole of the base plate, the tip end of each of which is arcuate along the axial direction on the outer peripheries of the long axis and the short axis that face each other. The hollow projecting part is made integral so that each arcuate surface can abut the inner peripheral wall of the handrail post and all arcuate surfaces are located on the same circumference drawn around the center of the pipe member. A handrail support device, comprising: a cored bar member having a substantially cross-sectionally shaped cross-section, and a nut screwed with the anchor bolt.