JP3233203B2 - Mounting structure of mounting rod - 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 of a mounting rod for fixing a mounting rod orthogonally to a supporting column, and more particularly to a supporting column which is erected at appropriate intervals on a handrail provided on a rooftop, stairs, a balcony, or the like. The present invention relates to a mounting structure of a mounting rod connected by a mounting rod.

[0002]

2. Description of the Related Art Conventionally, roofs, stairs, balconies, and the like have been provided with handrails to prevent falling. Such handrails have a plurality of columns erected at appropriate intervals on the foundation concrete, and a pair of vertical mounting bars which are parallel to each other are hung over the columns, and a decorative panel or a number of parallel bars are provided between the mounting bars. A vertical bar is erected.

[0003] In the ladder-type handrail described above, a mounting rod is fixed perpendicular to a support column. As shown in FIG. 9, for example, as shown in FIG. 9, a mounting shaft 51 is protruded from the outer periphery of a column 50, and a hollow mounting rod 52 is inserted into the mounting shaft 51 for mounting. The rod 52 is assembled perpendicularly to the support column 50, a screw 54 is inserted through an insertion hole 53 formed in the mounting rod 52, and the screw 54 is screwed into a screw hole 55 formed in the mounting shaft 51 to attach the mounting rod 52. A method of fixing 52 is known. In this way, the mounting rod 52 is
When the screw hole 55 is formed in the mounting shaft 51, the screw hole
If the position of the screw hole 55 and the insertion hole 53 is displaced due to an error in the formation of the insertion hole 53 and the insertion hole 53, the screw hole 55 and the insertion hole 53 coincide with each other before the mounting rod 52 hits the column 50, and the column 50 is Mounting rod
The mounting rod 52 cannot be fixed accurately, for example, a gap is formed between itself and the mounting rod 52. Conversely, if the screw hole 55 and the insertion hole 53 are misaligned with the mounting rod 52 abutting the support post 50, the screw hole 55 and the insertion hole 53 do not overlap, making it difficult to tighten the screw 54. Become. For this reason, in order to make the positions of the insertion hole 53 and the screw hole 55 coincide with each other in a state where the mounting rod 52 is in contact with the support column 50, a high dimensional accuracy is required for the formation of the screw hole 55 and the insertion hole 53, There is a problem that these processes are troublesome and troublesome.

The present invention is intended to solve such a problem, and a mounting rod in which a screw insertion hole and a screw portion for screwing a screw surely coincide with each other in a state where the mounting rod abuts on a support post. An object of the present invention is to provide a mounting structure.

[0005]

According to the present invention, a mounting shaft is fixed to the outer peripheral surface of a column, a hollow mounting rod is inserted into the mounting shaft, and the mounting rod is assembled so as to be orthogonal to the column. In a mounting structure of a mounting rod for inserting a fastener such as a screw from an insertion hole formed in the mounting rod and screwing the fastener into the mounting shaft to fix the mounting rod, the mounting shaft has A groove portion or a long hole extending along the insertion direction is formed, and a screw portion for screwing the fastening portion is formed to face the inner surface of the groove portion or the long hole.

According to the present invention employing the above means, a groove or a long hole having a screw portion is formed along the axial direction of the mounting shaft, and when the mounting rod is inserted into the mounting rod, an insertion hole formed in the mounting rod. The screw portion is formed along the movement locus of the support rod, and the position of the screw portion of the mounting shaft and the insertion hole of the mounting rod surely coincide with each other with the end of the mounting rod abutting against the outer surface of the column.

[0007]

Embodiments of the present invention will be described below with reference to the accompanying drawings. FIGS. 1 to 7 show a case in which the first embodiment of the present invention is applied to a handrail. In FIG. 1, reference numeral 1 denotes a handrail support that is erected on a foundation 2 made of concrete or the like at intervals. 1 supports the long upper cross rail 3. A mounting rod 4 is provided on the lower side of the column 1 so as to be parallel to the upper horizontal rail 3. The support rods 1 are connected by the mounting rods 4, and a plurality of vertical rails 5 are bridged between the upper and lower horizontal rails 3, 4 to form a ladder-type handrail 6.
Note that the support 1, the upper and lower horizontal bars 3, 4 and the vertical bar 5 constituting the handrail 6 are all extruded products of an aluminum alloy, and are formed in a hollow cylindrical shape having a circular cross section.

The mounting rod 4 includes an upper frame 4A and a lower frame 4B.
And an engagement groove 8 is formed on the opening edge of the upper frame 4A.
An L-shaped engaging projection 9 is formed on the opening edge of the lower frame 4B. Then, the upper frame 4A and the lower frame 4B are integrally assembled by fitting the engagement protrusion 9 of the lower frame 4B into the engagement groove 8 of the upper frame 4A. Also, on the inner surface side of the column 1, a split groove 10
And a pair of left and right projecting portions 11 facing each other are integrally formed over the entire length of the column 1. Four protrusions 11 are formed at intervals, and screws (not shown) for fixing the upper horizontal rail 3 are screwed into the split grooves 10 of the respective protrusions 11.

Reference numeral 15 denotes a mounting shaft for fixing the mounting rod 4, and a cylindrical portion 17 through which a bolt 16 penetrates is provided at the center of the mounting shaft 15.
Are formed. A groove 18 is formed at the top of the cylindrical portion 17, and a pair of right and left rising portions 19 facing from the outer edge of the groove 18 is integrally formed. Further, the upper end of the rising portion 19 contacts the inner surface of the upper frame 4 </ b> A. A pair of right and left curved portions 20 that can be contacted are provided continuously. In the lower part of the outer peripheral surface of the cylindrical portion 17, reinforcing ribs 21, 22 each formed in an L shape are formed symmetrically in the vertical direction. The curved portion 20 and the reinforcing ribs 21 and 22 formed integrally with the cylindrical portion 17 are formed to have the same width, respectively.
The right and left lower ends of the reinforcing ribs 22 formed at the bottom of the 17 are engaged with the opening edges of the upper frame 4A of the mounting rod 4. On the inner surface of the groove 18, a screw portion 24 having a substantially saw-tooth cross section for screwing a countersunk screw 23 as a fastener for fixing the mounting rod 4 is formed. The mounting shaft 15 is formed by extruding and molding an aluminum alloy or the like. The groove 18, the rising portion 19, the curved portion 20, the reinforcing ribs formed on the mounting shaft 15 are formed.
The 21 and 22 and the screw portion 24 are formed over the entire length of the mounting shaft 15.

Reference numeral 30 denotes the mounting rod 4 disposed inside the support post 1.
And a screw hole 16A of the bolt 16 is formed. The fixing plate 30 is made of a flexible metal plate, and as shown in FIG.
Are formed to have a width substantially equal to the interval between the support pillars 1 and are slidably guided along the protruding portions 11 at the inside of the support column 1. In the drawing, reference numeral 31 denotes an insertion hole for the flathead screw 23 formed in the mounting rod 4, 32 denotes a through hole for the bolt 16 formed in the column 1, and 33 denotes a cross section corresponding to the cross-sectional shape of the column 1. Mounting rod 4
Is a substantially semi-circular cutout formed at the end of the.

A method of fixing the mounting rod 4 of the present embodiment configured as described above will be described. First, the fixing plate 30 is inserted between the projecting portions 11 protruding from the inside of the column 1, and the position of the through hole 32 formed in the column 1 while sliding the fixing plate 30 along the projecting portion 11. I will guide you to And
After aligning the screw holes 16A of the fixing plate 30 with the through holes 32 of the column 1, the bolts 16 inserted into the cylindrical portion 17 of the mounting shaft 15
Into the screw hole 16A of the fixing plate 30 to fix the mounting shaft 15. At this time, both side edges of the fixing plate 30
When the bolt 16 is positioned at 11 and the bolt 16 is inserted inside the column 1, the fixing plate 30 holds the projection 11,
The fixing plate 30 is not pushed and pushed backward. Further, the fixing plate 30 is prevented from rotating in the tightening rotation direction of the bolt 16, and the bolt 16 can be screwed easily and easily. Since the fixing plate 30 attached to the inner surface of the column 1 is formed in a flat plate shape, FIG.
As shown by a dashed line, a gap is formed between the support column 1 formed into a hollow cylindrical shape and the fixing plate 30, and the bolt 16
By tightening, the fixing plate 30 bends and deforms so as to closely adhere along the inner surface of the column 1. For this reason,
Bolt of mounting shaft 15 by elastic restoring force of fixed plate 30
Since the pulling force always acts on the column 1 side, the bolt 16
Can be prevented from loosening. In this way, the mounting shaft 15
After fixing the mounting rod 4, the mounting rod 4 is inserted into the mounting shaft 15 so that the curved portion 17 formed on the upper part of the mounting shaft 15 fits into the upper frame 4A of the mounting rod 4 and is formed on the lower part of the mounting shaft 15. The reinforcing ribs 22 which are engaged with the opening edge of the mounting rod 4 and the upper frame 4A
The mounting shaft 15 is fitted inside the. Then, the semicircular notch 33 formed at the end of the mounting rod 4 is abutted against the outer surface of the column 1, and the mounting rod 4 is assembled orthogonally to the column 1. In this case, a screw portion for screwing the flathead screw 23 for fixing the mounting rod 4
Since the groove 24 is formed in the groove 18 formed over the entire length of the mounting shaft 15, as shown in FIG. 6, the groove 18 having the threaded portion 24 is inserted in the mounting direction of the mounting rod 4 (in FIG. (Shown). That is, the screw portion 24 of the flat head screw 23 is formed along the movement locus of the insertion hole 31 of the mounting rod 4,
When the semicircular cutout 33 formed at the end of the support rod 1 is abutted against the outer surface of the column 1, the positions of the insertion hole 31 of the mounting rod 4 through which the countersunk screw 23 is inserted and the threaded portion 24 of the mounting shaft 15 are surely ensured. Matches. Therefore, it is not necessary to align the insertion hole 31 and the screw portion 24,
The upper frame 4A of the mounting rod 4 can be easily fixed by screwing the countersunk screw 23 inserted through the insertion hole 31 into the screw portion 24 of the mounting shaft 15. The lower frame 4B is inserted into the engagement groove 8 of the upper frame 4A.
Of the upper frame 4A and the lower frame 4
B, the mounting rod 4 is assembled and fixed to the column 1, and then the upper horizontal bar 3 placed on the upper end of the column 1 is projected from the inner surface of the column 1. Split groove of the shape 11
Screwing to 10 completes the assembly of the handrail 6.

As described above, in this embodiment, the groove 18 is formed over the entire length of the mounting shaft 15, and the screw portion 24 for screwing the flat head screw 23 is formed on the inner surface side of the groove 18. When the mounting rod 4 is inserted into the shaft 15, the insertion hole 31 formed in the mounting rod 4 moves along the groove 18, and the screw portion 24 is always located on the movement locus of the insertion hole 31. For this reason, even if a molding error occurs in the insertion hole 31, the screw portion 24 and the insertion hole 31 are formed with the semicircular cutout 33 formed at the end of the mounting rod 4 abutting against the outer surface of the column 1. Make sure the positions match. Therefore, the thread
The position of the mounting rod 4 can be easily fixed while the positioning of the mounting rod 4 against the support column 1 can be performed easily. Further, a common mounting shaft 15 can be used even with the mounting rods 4 having different positions of the insertion holes 31, and the mounting shaft 15 can be shared.

Although the embodiments of the present invention have been described in detail, the present invention is not limited to the above embodiments, and various modifications can be made within the scope of the present invention. For example, in the above-described embodiment, the screw shaft 24 is formed in the groove 18 formed over the entire length of the mounting shaft 15 because the mounting shaft 15 is formed by extrusion molding. In addition, the same operation and effect as in the above embodiment can be obtained by forming the long hole 40 along the insertion direction of the mounting rod 4 on the mounting shaft 15 and forming the screw portion 24 on the inner surface of the long hole 40. it can. In this embodiment, the handrail is described as an example. However, the present invention is not limited to the handrail, and is applicable to any structure in which the mounting rod is fixed to the support column at right angles. Further, the fixing structure and material of the mounting shaft may be appropriately selected. Furthermore, although the flathead screw is shown as the fastener, various screws and bolts may be used.

[0014]

According to the present invention, a mounting shaft is fixed to the outer peripheral surface of a column, a hollow mounting rod is inserted into the mounting shaft, and the mounting rod is assembled orthogonally to the column, and the mounting rod is mounted. A fastener such as a screw is inserted through an insertion hole formed in the mounting rod, and the fastener is screwed into the mounting shaft to fix the mounting rod. A groove or a long hole extending along the groove is formed, and a screw portion for screwing the fastening portion is formed on an inner surface of the groove or the long hole so as to face the mounting rod. In this state, the positions of the screw portion of the mounting shaft and the insertion hole of the mounting rod surely match, and the positioning of the screw portion and the insertion hole is easy. Also, a common mounting shaft can be used for mounting rods having different positions of the insertion holes, and the mounting shaft can be shared.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a first embodiment of the present invention.

FIG. 2 is a perspective view of the mounting shaft according to the first embodiment;

FIG. 3 is a cross-sectional view showing the mounting state of the mounting rod.

FIG. 4 is an enlarged sectional view taken along line AA of FIG. 3;

FIG. 5 is a sectional view taken along the line BB of FIG. 3;

FIG. 6 is a plan view of the mounting rod in which a support column showing a mounting state of the mounting rod is sectioned.

FIG. 7 is a front view of the handrail according to the second embodiment;

FIG. 8 is a perspective view of a handrail showing a second embodiment of the present invention.

FIG. 9 is a cross-sectional view of a conventional example, showing a mounting state of a mounting rod.

[Explanation of symbols]

 1 Support 4 Mounting Rod 15 Mounting Shaft 18 Groove 23 Countersunk Screw (Fixing Fixture) 24 Screw 31 Insertion Hole 40 Slot

Claims (1)

(57) [Claims] 1. A mounting shaft is fixed to an outer peripheral surface of a column, a hollow mounting rod is inserted into the mounting shaft, and the mounting rod is assembled perpendicularly to the column, and a mounting hole formed in the mounting rod is inserted into the mounting rod. In a mounting structure of a mounting rod for inserting a fastener such as a screw and screwing the fastener into the mounting shaft to fix the mounting rod, the mounting shaft has a groove or a groove extending along a direction in which the mounting rod is inserted. A mounting structure for a mounting rod, wherein a long hole is formed, and a screw portion for screwing the fastening portion is opposed to an inner surface of the groove or the long hole.