JP2001173186A - Handrail connecting fitting - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a handrail connecting fitting efficiently executing a continuous handrail and excellent in supporting strength. SOLUTION: The handrail connecting fitting has a fixed seat plate A to the first handrail G1 and a fixed ring D to the second handrail G2, a rotary operating ring C previously assembled to the fixed seat plate A through a center bolt B and a ring plate 25 projected from a supporting bracket E fixed onto the wall surface W of a building and inserted and covered and fitted to the boss 17 of the fixed ring D, and the ring plate 25 for the supporting bracket E is set so as to be held and fixed between the mutually opposed sections of the rotary operating ring C and the fixed ring D when the center bolt B is screwed and clamped and screwed up to a tapped hole 18 on the fixed ring D side by the rotary operation of the rotary operating ring C.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a handrail connecting bracket useful for construction as a continuous handrail.

[0002]

2. Description of the Related Art A handrail connecting device for adding and connecting handrails made of a wooden round bar is disclosed in Japanese Utility Model Laid-Open No. 7-19457.
According to this, it is not necessary to rotate the handrail itself, and it can be said that there is an advantage that the connecting work can be easily performed even with the handrail in the form of a curved bar.

[0003]

However, in the structure of the above-mentioned known invention, the first connecting plate (1) and the nut member (5) are separate and independent parts, and one surface of the first connecting plate (1). Since the nut member (5) is accommodated in the nut accommodating portion (13) having an open side, the nut member (5) is accommodated in a loose fit state in which the nut member (5) can also move in the axial direction. When attaching to the handrail member (10), it is necessary to insert and set the nut members (5) one by one into the nut accommodating portion (13), which is very troublesome. ) Is likely to occur.

The male screw member (3) is a turnbuckle, which is also independent of the rotating body (4), and its left screw shaft (32) is connected to the screw hole (2) of the second connecting plate (2).
4), the right screw shaft (31) is screwed into the screw hole (5) of the nut member (5) in the first connection plate (1).
1), and the rotating body (4) must be fitted to the base (33) of the male screw member (3). Therefore, the connection work of the handrail member (10) is a so-called one-touch operation. It cannot be done lightly and efficiently in the formula.

Further, since the handrail connecting device (P) of the above-mentioned invention is a product independent of the support bracket (9) for the wall surface (91) of the building, the bracket (9) is connected to the handrail member (10). ) Requires special work, and many of the mounting screws are unsightly exposed, and the supporting strength of the connecting joints (seams) constructed as a continuous handrail is inferior, and distortion may occur at those points. .

[0006]

SUMMARY OF THE INVENTION The present invention is intended to improve such problems, and as a handrail connecting fitting therefor, a circular fixed seat which is integrally attached to a connecting end face of a first handrail. Board and

A freely rotatable center bolt which is penetrated to the center of the fixed seat plate so as not to come off;

A rotating operation ring previously assembled to the fixed seat plate so as to be able to rotate integrally therewith via the center bolt;

A fixed ring attached to and integrated with the connection end face of the second handrail facing the connection end face of the first handrail;

A cylindrical boss integrally extending from the center of the fixed ring toward the rotating operation ring;

A screw hole for receiving the center bolt formed in the boss;

A ring plate that is integrally extended from a handrail support bracket that is attached to and fixed to a wall surface of the building so as to be inserted into a boss of the fixed ring,

When the center bolt on the fixed seat plate side is screwed into the screw hole on the fixed ring side by the turning operation of the turning operation ring, and the state is tightened, the ring plate of the support bracket is tightened. Is set so as to be clamped and fixed between the rotating operation ring and the fixed ring facing each other.

[0014]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view of a connecting bracket (J) used for construction as a continuous handrail according to the present invention. Numeral 6 denotes an assembled use state of the handrail connecting bracket (J). (G1) and (G2) denote a pair of first and second handrails facing each other which are connected and extended, and are made of wood having substantially the same diameter. It is made of a round bar material, but may have a curved bar shape as well as a straight bar shape.

(A) is a circular metal fixed seat plate which is attached to and integrated with a plurality of (two in the illustrated example) countersunk screws (1) on the connection end face of the first handrail (G1). A circular center bolt head receiving hole (2) is formed in the center portion.

That is, the head receiving hole (2) is also provided with a large diameter concentric locking notch (2a), thereby receiving a large diameter head of a center bolt (B) described later. The center bolt (B) is not pulled out from the fixed seat plate (A) in the direction in which the second handrail (G2) exists. (3) is a plurality of countersunk screw receiving holes distributed around the center bolt head receiving hole (2) in the fixed seat plate (A), and has a conical shape.

(C) is a metal turning operation ring assembled to the fixed seat plate (A) via one center bolt (B), and has a circular shape which comes into surface contact with the fixed seat plate (A). And a decorative flange (5) projecting from the peripheral edge of the substrate (4) in a direction of covering the outer peripheral surface of the fixed seat plate (A) and the first handrail (G1), and the peripheral edge of the substrate (4). And a holding flange (6) projecting in the direction in which the second handrail (G2) is present from the opposite side, and is formed into a substantially H-shaped cross section as shown in the figure.

Reference numeral (7) denotes a center bolt receiving hole formed at the center of the substrate (4). ) And relatively do not idle.

(8) is a plurality of countersunk screw escaping slots which are also distributed around the center bolt receiving hole (7) in the substrate (4), and is provided on the fixed seat plate (A) side. Each of them is cut out in a circular arc shape that is easily communicated with the screw receiving hole (3) over a rotation angle range of about 90 degrees.

The center bolt (B) mentioned above has an elliptical screw shaft (9) corresponding to the center bolt receiving hole (7) on the side of the rotating operation ring (C), and the fixed seat plate. It has a stepped circular head (10) corresponding to the center bolt head receiving hole (2) on the (A) side, and the center bolt (B) is moved from the fixed seat plate (A). By inserting the rotating operation ring (C) into the substrate (4) and penetrating the same, the rotating operation ring (C) and the fixed seat plate (A) are maintained in a previously assembled state.

(11) is a rubber O-ring for preventing the center bolt from coming off.
However, a synthetic resin snap ring or the like may be used instead.

In any case, under the above-mentioned assembled state, the screw shaft portion (9) of the center bolt (B) and the center bolt receiving hole (7) on the rotating operation ring (C) are fitted. Therefore, the center bolt (B) and the rotating operation ring (C) do not relatively idle.

Also, the large-diameter head (10) of the center bolt (B) and the center-bolt head receiving hole (2) on the fixed seat plate (A) side are fitted with each other. The center bolt (B) and the rotation operation ring (C) can freely and together rotate on the fixed seat plate (A).

Further, until the center bolt (B) is completely screwed up to a fixed ring to be described later until the center bolt (B) is completely tightened, the front end of the center bolt (B) with respect to the fixed seat plate (A) and the rotating operation ring (C) is moved. It also has the flexibility to swing to some extent from the part.

In this case, in FIGS. 1 to 6, the screw shaft portion (9) of the center bolt (B) and the center bolt receiving hole (7) opened in the substrate (4) of the rotating operation ring (C) are Although they are formed in an elliptical shape that corresponds to each other, if the two can be kept in an assembled state in which they do not rotate relatively, the substrate (4) is suggested as a modification of FIG.
A square center bolt receiving hole (7) is opened in the center of the square neck, and a square neck (12) corresponding to the square center bolt receiving hole (7).
In addition, the circular screw shaft (9) is connected to the center bolt (B)
May be provided.

On the other hand, (D) also shows a plurality of (two in the example shown) countersunk screws (1 in the figure) on the connecting end face of the second handrail (G2).
3) a metal fixed ring that is attached and integrated via the third ring, and a circular mounting seat plate (14) corresponding to the substrate (4) of the rotating operation ring (C); A receiving flange (15) projecting toward the holding flange (6) of the moving operation ring (C), and a reverse direction covering the outer peripheral surface of the second handrail (G2) from the periphery of the mounting seat plate (14). It is formed in a substantially horizontal H-shape in cross-section, which is narrower than the illustrated rotating operation ring (C) having a decorative flange (16) projecting out.

In addition, a cylindrical boss (17) for receiving a ring packing and a ring plate of a support bracket for a handrail from the center of the mounting seat plate (14).
Are integrally formed so as to protrude toward the rotation operation ring (C). Reference numeral (18) denotes a center bolt receiving screw hole that passes through the center of the boss (17) of the mounting seat plate (14), and is screwed to the screw shaft (9) of the center bolt (B). Will be. As long as the screw can be fastened, the screw hole (18) is attached to the mounting seat plate (14).
It may be perforated in the center of the boss (17) as a blind form in which the opening is not exposed.

Reference numeral (19) designates a plurality of conical countersunk screw receiving holes which are distributed around the screw holes (18) in the mounting seat plate (14). The boss (17) is provided with a plurality of countersunk screw notches (20) at the peripheral edge of the boss (17) to prevent the interruption of the boss (17). Reference numeral (21) denotes a group of reinforcing ribs projecting radially from the screw hole (18) in the boss (17) to the peripheral edge.

Further, (E) is a metal support bracket for handrails. As is apparent from FIGS. 8 to 11, a plurality of (four in the illustrated example) countersunk screws are mounted on the wall (W) of the building. (2
A base (23) attached and fixed by 2), a substantially L-shaped bent arm (24) projecting from the base, and a ring that is inserted and integrated into the projecting distal end of the bent arm (24) so that it can be freely inserted and removed from above. A plate (25).

That is, the metal ring plate (2)
The leg piece (26) that continuously hangs down from the receiving groove (2) that opens corresponding to the tip of the bending arm (24).
7) It is to be inserted into and to be assembled and integrated by one fixing screw (28) passing through.

However, the support bracket (E) is not shown in FIG.
Of course, as shown in the modified embodiment, the bent arm (24) of the pedestal (23) and the ring plate (25) may be formed as a continuous integrated product. The above bending arm (2
4) is desirably shaped into a rigid circular or elliptical cross section.

In any case, the support bracket (E)
, The outer diameter of the ring plate (25) is substantially equal to those of the rotating operation ring (C) and the fixed ring (D).
Similarly, the inner diameter is the same as the cylindrical boss (1) in the fixed ring (D).
The outer diameter of the boss (17) is approximately equal to that of the boss (17), so that the ring plate (25) can be inserted into the outer peripheral surface of the boss (17), and the support bracket (E) can be hung therefrom. ing.

Then, under the state of being inserted and fitted, the screw shaft portion (9) of the center bolt (B) is screwed into the screw hole (18) on the fixed ring (D) side.
When this is tightened, the support bracket (E) is positioned between the receiving flange (15) on the fixed ring (D) side and the holding flange (6) on the rotating operation ring (C). The ring plate (25) is pinched and fixed.

Reference numeral (29) denotes a ring packing having elasticity, which is inserted into the boss (17) of the fixed ring (D) as in the case of the ring plate (25) of the support bracket (E), and is fitted. , And is interposed in the mutual gap between the mounting seat plate (14) of the fixed ring (D) and the ring plate (25) of the support bracket (E).

In this respect, in the illustrated embodiment, the ring packing (29) is a flat plate made of a synthetic resin such as nylon, and a plurality of conical projections (30) distributed from the plate surface are fixed to the fixed ring. (D) Mounting seat plate (14)
Bulging taller than the overhang of the receiving flange (15) that protrudes from the fixed ring (D)
Is fixed between the mounting seat plate (14) and the ring plate (25) of the support bracket (E) so as to be compressed and deformed and to exert a restoring elastic pressure accompanying the deformation.

However, the rotation ring (C) and the fixed ring (D), which are in a screw-fastened state sandwiching the ring plate (25) of the support bracket (E), restore the ring packing (29). As long as the ring packing (29) is fixed and integrated into a binding state that does not cause swinging motion or rattling due to elastic pressure, another spring washer or cushion rubber may be used as the ring packing (29).

The ring plate (25) of the support bracket (E) has a receiving flange (15) on the fixed ring (D) side and a holding flange (6) on the rotating operation ring (C) side.
And the fixed outer ring of the fixed ring (D) and the rotating operation ring (C),
The bending arm (24) in the support bracket (E)
A certain gap (S) is also ensured between the top surface and the top surface.

(F) is a handrail rotation prevention receiver which is inserted into the gap (S) in a direction perpendicular to the plate surface of the ring plate (25) (longitudinal direction of the handrail) and is used. A metal plate piece of a fixed length curved into an arc shape that can be fitted from below to the outer peripheral surface of the first handrail (G1) and the rotation operation ring (C) as shown in FIGS. Consists of

The insertion notch (31) provided at the tip of the receiving seat (F) sandwiches the leg (26) of the ring plate (25) in the support bracket (E).
The rotary operation ring (C) is inserted into the gap (S) under the inserted state.
And the fixed ring (D) is stably received from below by the receiving seat (F).

Reference numeral (32) denotes a conical countersunk screw receiving hole formed at the base end of the receiving seat (F), from which one flat screw (33) is inserted into the first handrail (G1). ), The first handrail (G1) is fixedly maintained in a non-rotatable safe state. Reference numeral (34) denotes a locking step which is also cut out in the middle of the receiving seat (F), and locks to the projecting edge of the decorative flange (5) in the rotating operation ring (C).

Incidentally, the receiving seat (F) for preventing the handrail rotation is provided in the above-mentioned space (S) from the opposite direction to the illustrated embodiment.
Also, the leg piece (26) of the ring plate (25) is inserted so as to sandwich the same, and the outer surface of the second handrail (G2) and the fixed ring (D) is fitted from below to fit the flat screw (33). By screwing into the second handrail (G2),
The second handrail (G2) may be fixedly maintained.

The handrail connection fitting (J) of the present invention has the above-described configuration, and it is necessary to add and connect the first and second handrails (G1) and (G2) by using the same. The fixed seat plate (A) and the rotating operation ring (C) assembled via the center bolt (B) are applied to the connecting end surface of the first handrail (G1) as shown in FIGS. Then, the fixed seat plate (A) is first handrailed (G
Attach to 1) and integrate.

At this time, the countersunk screw (1) is turned on the rotating operation ring (C).
Slotted countersunk screw holes (8) opened in the substrate (4)
Can be easily and correctly screwed into the first handrail (G1) through the countersunk screw receiving hole (3) of the fixed seat plate (A), and the first handrail (G1) and the fixed seat plate (A) can be easily screwed. ) Is a decorative flange (5) of the rotating operation ring (C).
Will be covered and coated.

Further, the rotating operation ring (C) is attached to the fixed seat plate (A) attached to and integrated with the first handrail (G1).
Since the center bolt (B) and the center bolt (B) are in a relation of rotating together, the center bolt (B) can be freely turned from the outside by the turning operation ring (C).

On the other hand, the fixed ring (D) is applied to the connecting end face of the second handrail (G2) as shown in FIGS. 16 and 18, and the mounting seat plate (14) is attached to the second handrail by the countersunk screw (13). (G
2), and the outer peripheral surface of the second handrail (G2) is covered with a decorative flange (16) of the fixed ring (D).

In that case, the mounting seat plate (1)
4) The cylindrical boss (17) projecting out from (4) is fixed in advance, or its fixed ring (D) is fixed to the second handrail (G2), and then the ring packing (29) is inserted and fitted. deep. The ring packing (29) may be temporarily attached to the mounting seat plate (14) of the fixed ring (D) with an adhesive (not shown).

Next, the boss (17) of the stationary ring (D)
Ring plate (2) of the handrail support bracket (E)
5), the base (23) of the support bracket (E) is fixed to the wall surface (W) of the building with a countersunk screw (22), and the height of the second handrail (G2) is set. Is positioned at a predetermined position. Then, the fixed seat plate (G1) attached to the first handrail (G1) is inserted into the center bolt receiving screw hole (18) of the fixed ring (D) attached to the second handrail (G2). The center bolt (B) on the A) side is screwed and fastened as shown in FIG. 19, and tightened by turning the turning operation ring (C).

In the screwing process, the first and second handrails (G1) and (G2) have an accurate 180 degree angle because the center bolt (B) has the flexibility of swinging to some extent from the tip. Even if it is not in the abutting state but in a slightly intersecting inclined state, the turning operation of the turning operation ring (C) can be performed lightly and the screw shaft portion (9) of the center bolt (B) is fixed. The screw holes (18) on the side of the ring (D) can be smoothly and securely screwed and fastened so as to perform the self-aligning action.

When the tightening of the center bolt (B) is completed, the ring of the support bracket (E) received by the receiving flange (15) on the fixed ring (D) side is apparent from FIGS. Plate (25)
Is pressed by the holding flange (6) on the rotating operation ring (C) side, and is clamped and fixed between the two flanges (6) (15), resulting in the first and second handrails (G1). )
(G2) A stable and firm connection state can be obtained.

At the same time, at the end of the tightening, the ring packing (29), which has been inserted into the boss (17) of the fixed ring (D) and fitted to the boss (17), is replaced with the mounting seat plate (14) of the fixed ring (D). ) And the ring plate (25) of the support bracket (E) are compressed and deformed to exert their restoring elastic pressure.
5) The turning operation ring (C) in the screwed fastening state sandwiching the
The fixed ring (D) and the fixed ring (D) do not have a possibility of causing mutual swing movement and rattling, and are fixed and integrated in a binding state absorbing these.

By the time the center bolt (B) is completely tightened, the boss (17) of the fixed ring (D) into which the ring plate (25) is inserted and fitted is used as a rotation axis. Since the support bracket (E) can be swung, the pedestal (2) of the support bracket (E) can be moved.
3) It is possible to stably attach and fix the wall surface (W) of the building in an accurate surface contact state with the countersunk screw (22),
Needless to say.

Therefore, finally, the support bracket (E)
Into the gap (S) secured between the bent arm (24) of the above and the outer peripheral surface of the rotating operation ring (C), the lower surface of the rotating operation ring (C) and the first handrail (G1). Into the first handrail (G1) with the countersunk screw (33), and the first handrail (G1) rotates unexpectedly. Prevent danger.

FIGS. 20 to 23 show examples of the construction of a continuous handrail according to the above-mentioned working method. The first and second handrails (G1) and (G2) are alternately formed by using the connecting metal fitting (J) of the present invention. If they are connected to each other, all of them can be maintained in a non-rotatable fixed state, which is useful for safety in holding and using.

In FIGS. 20 to 23, reference numeral (T) denotes a curved bar-shaped first handrail (G1) or second handrail (G2) which is an end of a continuous handrail, W)
A metal base plate (36) having a substantially U-shaped cross section, which is mounted on a wall surface (W) of the building by a plurality of fixing screws (35);
A metal end cover plate (3) having a substantially U-shaped cross section, which is also fixed to the mounting end surface of the first handrail (G1) or the second handrail (G2) via a plurality of countersunk screws (37).
8) and a metal nut (3) which is fastened in a covering state to the base plate (36) and the end cover plate (38).
9).

The nut (39) is provided with a stopper flange (39a) for pressing the end cover plate (38) on the handrail side, and a female screw (39b) engraved on the inner peripheral surface thereof is attached to the base plate (36). ) Is screwed together with a male screw (36a) correspondingly formed on the outer peripheral surface of the first handrail (G1) or the second handrail (G2).
Attach and fix. Such a work of attaching and fixing to the wall surface (W) of the building is performed prior to the work of adding and connecting the first and second handrails (G1) and (G2) using the handrail connection fitting (J) of the present invention. It will be.

[0056]

As described above, the handrail connecting bracket (J) of the present invention is provided with the circular fixed seat plate (A) attached to and integrated with the connecting end face of the first handrail (G1).

A freely rotatable center bolt (B) penetrated to the center of the fixed seat plate (A) so as not to come off;

A rotating operation ring (C) previously assembled to the fixed seat plate (A) so as to be able to rotate integrally therewith via the center bolt (B);

A fixed ring (D) attached to and integrated with the connection end face of the second handrail (G2) facing the connection end face of the first handrail (G1);

A cylindrical boss (17) integrally projecting from the center of the fixed ring (D) toward the turning operation ring (C);

A screw hole (18) for receiving the center bolt formed in the boss (17);

A ring plate which is inserted and inserted into the boss (17) of the fixed ring (D) by integrally projecting from the handrail support bracket (E) attached and fixed to the wall surface (W) of the building. (25)

The center bolt (B) on the fixed seat plate (A) side is screwed and fastened to the screw hole (18) on the fixed ring (D) side by the turning operation of the turning operation ring (C). When the state is tightened, the ring plate (25) of the support bracket (E) is rotated by its rotating operation ring (C) and fixed ring (D).
Are fixed so as to be clamped between the opposing surfaces, so that there is an effect that all the problems of the prior art described at the beginning can be completely improved.

That is, according to the above configuration of the present invention, the bolt (B) is connected to the center portion of the fixed seat plate (A) through the freely rotatable center bolt (B) penetrated so as not to come off. Since the rotating operation ring (C) that can rotate integrally is preliminarily assembled to the fixed seat plate (A), the fixed seat plate (A) is connected to the connection end surface of the first handrail (G1). If integrated, the center bolt (B) and the turning ring (C) for turning the center bolt from the outside can be attached to the first handrail (G1) correctly and at once. Becomes

From the center of the fixed ring (D) attached to and integrated with the connecting end face of the second handrail (G2), a cylindrical boss (17) heading toward the rotating operation ring (C) is formed. The center bolt (B) is screwed into the screw hole (18) since the screw hole (18) for receiving the center bolt is formed in the boss (17). It is sufficient that the state is tightened by the rotation operation of the rotation operation ring (C), that is, the first and second handrails (G1) are so-called one-touch operation type lightly and efficiently.
The connection operation of (G2) can be performed.

The boss (17) integrally projecting from the center of the fixed ring (D) is cylindrical, and the ring plate () is integrally projected from the handrail support bracket (E) to the outer peripheral surface thereof. 25), the center bolt (B) on the fixed seat plate (A) side and the fixed ring (D) under the inserted and fitted state.
When the screwed state with the screw hole (18) on the side is tightened by the turning operation of the turning operation ring (C), the ring plate (25) of the support bracket (E) is turned. C) and the fixed ring (D) are sandwiched and fixed between the opposed sides, so that a special mounting operation of the support bracket (E) to the first and second handrails (G1) and (G2) becomes unnecessary, and for that purpose A large number of mounting screws are unsightly exposed, and there is no risk of impairing the cosmetic effect.

Further, the ring plate (25) of the support bracket (E) is provided between the rotating operation ring (C), which is previously assembled to the fixed seat plate (A), and the fixed ring (D). The first handrail (G
The base (23) of the support bracket (E) is attached to and fixed to the wall surface (W) of the building, because the base (23) of the support bracket (E) is interposed at the connecting point (seam) of the first handrail (G2) and the second handrail (G2). The support strength at the connection point can be significantly increased, and there is no weak point at the joint.

Further, the cylindrical boss (17) of the fixed ring (D) attached to and integrated with the connecting end face of the second handrail (G2).
In the state where the ring plate (25) of the support bracket (E) is inserted and fitted, the pedestal (23) of the support bracket (E) is attached and fixed to the wall surface (W) of the building. The handrail (G2) and the first handrail (G
Since the connection point (seam) with 1) is stably positioned and held at a predetermined installation height, the fixed ring (D) is continuously maintained.
The center bolt (B) on the turning operation ring (C) side is screwed and fastened to the screw hole (18) opening in the boss (17) on the side, so that the first handrail (G1) can be fixed. The second handrail (G2) can be extremely stably and lightly connected, and a highly durable connected state in which distortion does not occur can be obtained.

In particular, if the configuration of claim 2 is adopted,
The rotational operation ring (C) and the fixed ring, which are in a screw-fastened state sandwiching the ring plate (25) of the support bracket (E) by the restoring elastic pressure accompanying the compression deformation of the ring packing (29). (D) can be fixedly integrated into a binding state in which the mutual swinging movement and rattling do not occur.

If the structure of claim 3 is adopted, the mounting and fixing of the handrail rotation prevention receiving seat (F) enables
In addition to preventing the accidental rotation of the first handrail (G1) or the second handrail (G2), the first and second handrails (G
1) There is also an effect that the connecting portion (seam) of (G2) can be stably supported from below by the receiving seat (F).

If the configuration of claim 4 is adopted, the outer peripheral surface of the first handrail (G1) and the fixed seat plate (A) by the decorative flange (5) on the side of the rotating operation ring (C). With the decorative flange (16) on the fixed ring (D) side, the outer peripheral surface of the second handrail (G2) can be both covered and dressed safely and elegantly, and the remaining rotating operation ring (C) side Of the retaining flange (6) and the receiving flange (1) on the fixed ring (D) side
The ring plate (25) of the support bracket (E) can be sandwiched and fixed between each other and 5), which can be said to be an extremely rational design.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a disassembled state of a handrail connecting bracket and a handrail according to the present invention.

FIG. 2 is a sectional view showing a disassembled state of a handrail connection fitting.

FIG. 3 is a cross-sectional view showing an assembled and used state of the handrail connection fitting.

FIG. 4 is a sectional view taken along line 4-4 of FIG. 3;

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

FIG. 6 is a sectional view taken along line 6-6 in FIG. 3;

FIG. 7 is a perspective view showing a modified embodiment of the center bolt.

FIG. 8 is a plan view extracting and showing a handrail support bracket.

FIG. 9 is a front view of FIG. 8;

FIG. 10 is a side view of FIG. 9;

FIG. 11 is a sectional view taken along line 11-11 of FIG. 10;

FIG. 12 is a perspective view showing a modified embodiment of the handrail support bracket.

FIG. 13 is a plan view extracting and showing a handrail rotation prevention receiving seat.

FIG. 14 is a sectional view taken along line 14-14 of FIG.

FIG. 15 is a sectional view taken along line 15-15 of FIG. 13;

FIG. 16 is a sectional view showing an exploded state corresponding to FIG. 3;

FIG. 17 is a front view showing the rotation operation ring of FIG. 16 extracted.

FIG. 18 is a front view showing the fixed ring of FIG. 16 extracted.

FIG. 19 is a cross-sectional view showing a handrail connection work process following FIG. 16;

FIG. 20 is a cross-sectional view showing an example of construction of a continuous handrail by using the present invention.

21 is a plan view of FIG.

FIG. 22 is an enlarged sectional view taken along line 22-22 in FIG. 20;

FIG. 23 is an enlarged sectional view taken along line 23-23 of FIG.

[Explanation of symbols]

 (1) · Countersunk screw (4) · Board (5) · Decorative flange (6) · Holding flange (11) · O-ring (13) · Countersunk screw (14) · Mounting seat plate (15) · Receiving flange (16) ), Decorative flange (17), boss (18), screw hole (22), countersunk screw (23), pedestal (24), bent arm (25), ring plate (26), leg piece (29), ring packing (30) ・ Conical convex (31) ・ Insertion notch (33) ・ Counter screw (A) ・ Fixed seat plate (B) ・ Center bolt (C) ・ Rotating operation ring (D) ・ Fixed ring (E) ・Support bracket (F), seat (J), railing connection bracket (S), air gap (T), railing mounting bracket (W), wall surface (G1), first railing (G2), second railing

 ────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Hidefumi Murakami 1-12-23 Shimanouchi, Chuo-ku, Osaka-shi, Osaka F-term industry F-term (reference) 2E101 HH03 KK07

Claims (4)

[Claims] 1. A circular fixed seat plate (A) attached to and integrated with a connecting end surface of a first handrail (G1), and a turn penetrated to a center portion of the fixed seat plate (A) so as to be prevented from falling off. A freely movable center bolt (B), and a rotating operation ring (C) previously assembled to the fixed seat plate (A) so as to be able to rotate integrally with the center bolt (B) via the center bolt (B). A fixed ring (D) attached to and integrated with the connection end face of the second handrail (G2) facing the connection end face of the first handrail (G1); and the rotation from the center of the fixed ring (D). A cylindrical boss (17) integrally projecting toward the moving operation ring (C); a screw hole (18) for receiving the center bolt formed in the boss (17); W) to be integrally extended from the handrail support bracket (E) A ring plate (25) that is inserted into the boss (17) of the fixed ring (D) and is fitted into the boss (17). When the screw is screwed and fastened to the screw hole (18) on the fixed ring (D) side by the turning operation of the ring, the ring plate (2) of the support bracket (E) is tightened.
5) A handrail connection fitting characterized in that the handrail connection fitting is set so as to be pinched and fixed between opposing rotating operation rings (C) and fixed rings (D). 2. A resilient ring packing (29) interposed between opposed ring plates (25) of a fixed ring (D) and a support bracket (E) is fixed to a boss (17) of the fixed ring (D). ), And when the ring plate (25) of the support bracket (E) is clamped and fixed between the rotating operation ring (C) and the fixed ring (D) facing each other, the ring packing is performed. (2
2. The handrail connection fitting according to claim 1, wherein the metal plate is configured to be compressed and deformed between the opposing ring plate and the fixed ring so as to exhibit the restoring elastic pressure. . 3. The first and second handrails (G) are attached to the projecting base end of the ring plate (25) in the support bracket (E).
1) Insert a separate handrail rotation prevention seat (F) from the longitudinal direction of (G2), and insert the seat (F) into the lower surface of the first handrail (G1) and the rotation operation ring (C). Or the second handrail (G2) and fixed ring (D)
And fit it on the lower surface with the countersunk screw (33).
The handrail connection fitting according to claim 1, wherein the handrail connection fitting is fixed to a handrail (G1) or a second handrail (G2). 4. A circular base plate (4) in which a rotating operation ring (C) comes into surface contact with a fixed seat plate (A), and a fixed seat plate (A) and a first handrail (G1) are arranged from a peripheral portion thereof. A decorative flange (5) extending in a direction to cover the outer peripheral surface, and a substrate (4) as well.
And a holding flange (6) projecting in the opposite direction of the second handrail (G2) from the peripheral edge of the holding ring (G2). (C) a circular mounting seat plate (14) corresponding to the substrate (4), and a receiving flange (15) projecting from a peripheral portion thereof toward the holding flange (6) of the rotating operation ring (C). , Also the mounting seat plate (1
4) A cross-section substantially laterally smaller in width than the rotating operation ring (C), which has a decorative flange (16) projecting in the opposite direction to cover the outer peripheral surface of the second handrail (G2) from the peripheral portion. And a boss (17) extending from the center of the mounting seat plate (14) toward the rotating operation ring (C), and integrally projecting therefrom, and receiving the flange (7) on the fixed ring (D) side. Ring plate (25) of support bracket (E) received in 15)
The handrail connection fitting according to claim 1, characterized in that the handrail connection fitting is set so as to be pressed and fixed by the holding flange (6) on the rotation operation ring (C) side.