JP4794614B2 - Handrail connecting bracket - Google Patents

Description

  The present invention relates to a handrail connection fitting useful in construction as a continuous handrail.

The applicant of the present invention has already obtained Japanese Patent No. 3293101 for this type of handrail coupling fitting, and it can be said that this is a publicly known technique that is most similar to the present invention.
Japanese Patent No. 3293101

  However, in the configuration of the above-mentioned known invention, the ring plate (25) of the handrail support bracket (E) is remarkably thin and flat compared to the bending arm (24) of the pedestal (23). Of course, when assembled to the bending arm (24) via (28), even if it is made as a continuous integrated product as shown in FIG. 12, the handrails (G1) (G2) are held. When the load concentrates on the leg piece (26) of the ring plate (25), it easily causes rattling or deformation, resulting in a decrease in support strength and stability.

  Further, the handrail is prevented from rotating into a fixed gap (S) secured between the outer peripheral surface of the fixed ring (D) and the rotating operation ring (C) and the distal end surface of the bending arm (24). Since the receiving seat (F) is detachably inserted, and the receiving seat (F) is attached to the handrail (G1) with one countersunk screw (33), the overall contact between them It is difficult to maintain the state, and it is easy to cause backlash and deformation.

  Further, the ring plate (25) of the support bracket (E) is remarkably thin and flat, and is provided with a receiving flange (15) on the stationary ring (D) side and a holding flange (16 on the rotating operation ring (C) side. ), It is easy to generate unsightly play in the pinched portion, and there is a problem that the appearance cosmetic effect and safety are lowered.

  The present invention aims to further improve such problems, and in order to achieve the object, in claim 1, a circular fixed seat plate attached and integrated to the connecting end surface of the first handrail,

  A pivotable center bolt that is penetrated in the center of the fixed seat plate in a retaining state,

  A rotation operation ring pre-assembled in a covering state on the fixed seat plate via the center bolt;

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

  A cylindrical boss projecting integrally from the center of the fixed ring toward the rotation operation ring, and a screw hole for receiving the center bolt formed in the boss;

  A cover ring capable of covering the fixed ring by integrally projecting from a handrail support bracket attached and fixed to the wall of the building, and the boss escape hole formed in the partition wall of the cover ring ,

  When the center bolt on the fixed seat plate side is screwed and tightened with the screw hole on the fixed ring side by the rotation operation of the rotation operation ring,

  The cover ring of the support bracket is partially fitted flush with the outer peripheral surface of the rotation operation ring, and the partition wall of the cover ring is sandwiched and fixed between the rotation operation ring and the fixed ring. It is characterized by setting as follows.

  According to a second aspect of the present invention, a circular substrate whose surface is in contact with the fixed seat plate and a large diameter that protrudes relatively long in the direction covering the outer surface of the fixed seat plate and the first handrail from the peripheral portion thereof. A stepped-shaped cross-section substantially horizontally-shaped with a decorative flange and a cover cover flange having a small diameter that projects from the peripheral edge of the substrate in the direction of the presence of the second handrail that is opposite to the substrate. on the other hand,

  As an integrated product consisting of a pedestal to which the handrail support bracket is attached and fixed to the wall surface of the building, a substantially L-shaped bent arm projecting from the pedestal, and a cover ring continuous to the projecting tip of the bent arm,

  A decorative flange that protrudes relatively short from the peripheral edge of the partition wall in the cover ring in the direction in which the rotation operation ring exists is fitted into the cover ring receiving flange of the rotation operation ring in a covered state,

  Similarly, a decorative flange that protrudes relatively long from the peripheral edge of the partition wall in the opposite direction of the second handrail is covered on the outer periphery of the stationary ring and the second handrail.

  Further, in claim 3, a pedestal on which the handrail support bracket is attached and fixed to the wall surface of the building, a substantially L-shaped bent arm projecting from the pedestal, and a cover ring continuous to the projecting tip of the bent arm. As an integrated product consisting of

  A separate handrail rotation prevention seat that can be fitted to the lower surface of the first handrail and the rotation operation ring is attached to the projecting tip portion of the bending arm from the longitudinal direction of the first and second handrails with a fixing screw. It is attached.

  According to the above-described configuration of the first aspect, as in the known invention described at the beginning, the first and second handrails can be connected efficiently by a one-touch operation method called a rotation tightening operation of the rotation operation ring. Nevertheless, in the connected state, the rotating operation ring covering the first handrail and the fixed seat plate and the cover ring of the support bracket covering the second handrail and the fixed ring are flush with each other. As a result of the partial fitting, the pinching gap as in the known invention described at the beginning does not occur unsightly, and an elegant appearance cosmetic effect can be obtained.

  Further, the cover ring integrally protruding from the handrail support bracket has a constant outer diameter and a band width substantially equal to the rotation operation ring, and the partition wall of the cover ring is the cover ring of the rotation operation ring. Since it is sandwiched and fixed in the opposite direction by the receiving flange and the mounting seat of the fixed ring, it is less likely to be rattled or deformed compared to the assembly of three members as in the known invention described at the beginning. It is unlikely to occur, and can be provided as a handrail coupling fitting that is rich in durability and stability.

  The above effects can be praised more and more by adopting the structure of claim 2. Further, if the structure of claim 3 is adopted, it is attached to the projecting tip portion of the bending arm in the support bracket, unlike the method of inserting the handrail rotation prevention receiving seat into the gap as shown in the first known invention. By fixing, there is an effect that can be kept stable and strong without fear of rattling or deformation.

  Hereinafter, the specific configuration of the present invention will be described in detail with reference to the drawings. FIG. 1 shows a disassembled state of a connection fitting (J) used for construction as a continuous handrail, and FIGS. (G1) and (G2) are a pair of opposed first and second handrails that are joined together and are made of wood round bars having the same diameter. Not only a bar form but also a curved bar form may be exhibited.

  (A) is a circular metal fixed seat plate attached to and integrated with a plurality of (two in total in the illustrated example) countersunk screws (1) on the connecting end face of the first handrail (G1). Is formed with a circular center bolt head receiving hole (2) having a stepped state as shown in FIGS.

  That is, the head receiving hole (2) is also provided with a large concentric circular locking notch (2a), thereby receiving the large head of a center bolt (B) to be described later. The bolt (B) is prevented from being pulled out from the fixed seat plate (A) in the direction in which the second handrail (G2) is present. (3) is a plurality of countersunk screw receiving holes distributed in the periphery of the center bolt head receiving hole (2) in the fixed seat plate (A), and has a conical shape.

  (C) is a metal rotating operation ring assembled to the fixed seat plate (A) via one center bolt (B). As shown in FIGS. 13 and 14, the fixed seat plate (A) A circular substrate (4) that is in surface contact with the outer peripheral surface, and a large decorative flange (L) that protrudes relatively long in the direction covering the outer peripheral surface of the fixed seat plate (A) and the first handrail (G1) from the peripheral edge thereof. 5) and a stepped state provided with a cover cover flange (6) having a small diameter that protrudes relatively short from the peripheral edge of the substrate (4) in the direction in which the second handrail (G2) is reversed. The cross section is cast in a substantially horizontal H shape. (W1) indicates the overall band width of the fixed seat plate (A), which is about 16.5 mm in the illustrated example.

  Further, (7) is a center bolt receiving hole formed in the center of the substrate (4), and the rotation operation ring (C) and the center bolt (B) are formed by forming an elliptical shape in particular. It is designed not to idle relatively.

  (8) is a plurality of countersunk screw escape holes which are distributed in the periphery of the center bolt receiving hole (7) in the substrate (4), and the countersunk screw receiving hole (on the fixed seat plate (A) side) It has a circular shape that matches easily with 3).

  As shown in FIG. 12, the center bolt (B) mentioned earlier has an elliptical neck (9) corresponding to the center bolt receiving hole (7) on the rotating operation ring (C) side, and a screw at the tip thereof. In addition to the shaft (10), it also includes a stepped circular head (11) correspondingly matched with the center bolt head receiving hole (2) on the fixed seat plate (A) side, The center bolt (B) is inserted and penetrated from the fixed seat plate (A) to the substrate (4) of the rotation operation ring (C), whereby the rotation operation ring (C) and the fixed seat plate (A). Are kept in the pre-assembled state.

  (12) is a rubber O-ring for retaining the center bolt, which is fitted to the screw shaft (10) of the center bolt (B), but is replaced with a synthetic resin snap ring. It is okay to adopt such as.

  In any case, since the neck (9) of the center bolt (B) and the center bolt receiving hole (7) on the rotating operation ring (C) side are fitted under the assembled state, The center bolt (B) and the rotation operation ring (C) do not idle relatively.

  Similarly, the center head (11) having a large diameter of the center bolt (B) and the center bolt head receiving hole (2) on the fixed seat plate (A) side are fitted to each other. The bolt (B) and the rotating operation ring (C) can freely rotate together with the fixed seat plate (A).

  In addition, the center bolt (B) is arranged from the front end of the fixed seat plate (A) and the rotation operation ring (C) until the center bolt (B) is tightened to the below-described fixed engagement with the fixed ring. It also has the flexibility to swing to a certain extent.

  In this case, in FIGS. 1 to 4, the neck (9) of the center bolt (B) and the center bolt receiving hole (7) opened in the substrate (4) of the rotation operation ring (C) correspond to each other. If it is shaped into a shape but can maintain an assembly state in which both of them are not relatively idle, the center bolt receiving hole (7) of the substrate (4) and the neck (9) of the center bolt (B) Of course, it may be shaped into a correspondingly matching square.

  On the other hand, (D) is a metal fixed ring that is attached and integrated to the connecting end face of the second handrail (G2) via a plurality of (two in total in the illustrated example) countersunk screws (13). As is clear from 15 to 18, the circular mounting seat plate (14) corresponding to the substrate (4) of the rotation operation ring (C) is integrated with the rotation operation ring (C) from the center thereof. And a cylindrical boss (15) projecting out, and a ring packing described later is received in the cylindrical boss (15).

  (16) is a screw hole for receiving a center bolt that penetrates the central portion of the boss (15) in the mounting seat plate (14), and is screwed and fastened to the screw shaft portion (10) of the center bolt (B). It will be. As long as the screwing can be fastened, the screw hole (16) may be formed in the center of the boss (15) in a blind form (non-penetrating form) that does not expose the mounting seat (14).

  Similarly, (17) is a countersunk screw receiving hole having a plurality of conical shapes distributed in the periphery of the screw hole (16) in the mounting seat plate (14), and blocking the countersunk screw receiving hole (17). In order to prevent this, a plurality of countersunk relief notches (18) are provided on the peripheral edge of the boss (15). (19) is a reinforcing rib group projecting radially from the screw hole (16) to the peripheral edge of the boss (15).

  Further, (E) is a metal support bracket for a handrail, and as is apparent from FIGS. 19 to 22, a plurality of (three in the illustrated example) countersunk screws (20) are attached to the wall surface (W) of the building. A pedestal (21) to be attached and fixed by means of, a substantially L-shaped bent arm (22) protruding from this, and a cover ring (23) continuous to the protruding tip (upper end) of the bent arm (22). ing.

  Moreover, the cover ring (23) of the support bracket (E) is a partition wall sandwiched between the cover ring receiving flange (6) of the rotating operation ring (C) and the mounting seat plate (14) of the fixed ring (D). (24), and a circular boss escape hole (25) for allowing the boss (15) of the stationary ring (D) to escape is formed in the center of the partition wall (24).

  Moreover, the cover ring (23) has an outer diameter (about 37 mm in the case of the figure) equivalent to the decorative flange (5) of the rotation operation ring (C), and the rotation operation ring from the partition wall (24). While the relatively short decorative flange (23a) protruding in the direction of existence of (C) is in a fitted state covering the outer peripheral surface of the cover ring receiving flange (6) in the rotating operation ring (C), A relatively long decorative flange (23b) projecting from the partition wall (24) in the direction of the opposite fixed ring (D) is a mounting seat (14) and a second handrail (G2) of the fixed ring (D). The outer peripheral surface is covered. (W2) indicates the overall band width of the cover ring (23), which is about 16 mm in the illustrated example.

  In addition, it is preferable to shape the bending arm (22) of the support bracket (E) to have a rigid cross-sectional circle or ellipse. Reference numeral (26) denotes a screw hole drilled at a middle height position of the bending arm (22), which is screwed and fastened with a fixing screw (27) of a handrail rotation prevention seat (F) described later. Will be.

  (28) is an elastic ring packing (retainer), which is inserted into the boss (15) of the fixed ring (D) and fitted into the boss (15), so that the mounting seat plate (14) of the fixed ring (D). And the partition wall (24) of the cover ring (23).

  In this respect, in the illustrated embodiment, the ring packing (28) is a flat plate made of synthetic resin such as nylon as shown in FIGS. 26 and 27, and a plurality of conical protrusions (29) scattered from the plate surface are provided. By bulging it tall, it is sandwiched between the mounting seat plate (14) of the fixed ring (D) and the partition wall (24) of the cover ring (23) and is compressed and deformed. It is stipulated so that it can exert its resilience pressure.

  However, the rotating operation ring (C) and the fixed ring (D) which are in a screwed fastening state with the partition wall (24) of the cover ring (23) sandwiched between them are caused by the restoring elastic force of the ring packing (28). As long as the ring packing (28) is fixed and integrated in a tied-up state that does not cause swinging motion or rattling, another spring washer or cushion rubber may be employed.

  The handrail rotation prevention seat (F) mentioned earlier is in a direction orthogonal to the cover ring (23) of the support bracket (E) (the longitudinal direction of the handrail), as shown in FIGS. To the bending arm (22), and has an arc shape that can be fitted from below to the outer peripheral surfaces of the first handrail (G1) and the rotation operation ring (C). In addition, it protrudes into an L shape with a certain length.

  Reference numeral (30) denotes a conical countersunk screw receiving hole having an opening distributed at the projecting tip of the receiving seat (F), from which two countersunk screws (31) are screwed into the first handrail (G1). By being inserted, the first handrail (G1) is fixed and maintained in a non-rotatable safe state. (32) is a locking step notched in the middle of the receiving seat (F), and is locked to the protruding edge of the decorative flange (5) in the rotating operation ring (C). Reference numeral (33) denotes a screw receiving hole correspondingly matched with the screw hole (26) of the bending arm (22), and is opened at the base end of the receiving seat (F). The screw (27) is screwed in, so that the receiving seat (F) is stably fixed and maintained.

  The handrail connecting bracket (J) of the present invention has the above-described configuration. When the first and second handrails (G1) and (G2) are added and connected by using the handrail connecting bracket (J), a pre-centering bolt is provided. The fixed seat plate (A) and the rotation operation ring (C) assembled through (B) are applied to the connecting end surface of the first handrail (G1) as shown in FIGS. The fixed seat plate (A) is attached to and integrated with the first handrail (G1) with the countersunk screw (1).

  At that time, the countersunk screw (1) passes from the countersunk screw escape hole (8) opened in the substrate (4) of the rotating operation ring (C) to the countersunk screw receiving hole (3) of the fixed seat plate (A). The first handrail (G1) can be easily screwed in correctly, and the outer peripheral surfaces of the first handrail (G1) and the fixed seat plate (A) are formed on the rotating operation ring (C). The decorative flange (5) is to be covered with makeup.

  Further, the rotating operation ring (C) and the center bolt (B) are in a relational state in which the rotating operation ring (C) and the center bolt (B) rotate together with respect to the fixed seat plate (A) attached to and integrated with the first handrail (G1). Therefore, the center bolt (B) can be freely rotated from the outside by the rotation 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. 5 to 8, and the mounting seat (14) is attached to the second handrail (G2) by the countersunk screw (13). Attach to and fix.

  In that case, the cylindrical boss (15) protruding from the mounting seat (14) of the fixed ring (D) is preliminarily attached, or the fixed ring (D) is fixedly attached to the second handrail (G2). Later, the ring packing (28) is inserted and fitted. The ring packing (28) may be affixed to the mounting seat plate (14) of the stationary ring (D) in a temporarily stopped state by an adhesive not shown.

  Next, the decorative flange (23b) of the cover ring (23) in the handrail support bracket (E) is attached to the mounting seat plate (14) of the fixed ring (D) and the boss (15) of the fixed ring (D). After inserting and fitting all the partition walls (24) of the cover ring (23), the base (21) of the support bracket (E) is attached and fixed to the wall surface (W) of the building with a countersunk screw (20). Then, the installation height of the second handrail (G2) is positioned at a predetermined position.

  Then, the fixed seat plate (attached to the first handrail (G1) to the center bolt receiving screw hole (16) on the fixed ring (D) side attached to the second handrail (G2). The center bolt (B) on the A) side is screwed and fastened as shown in FIG. 8, and the center bolt (B) is tightened by rotating the rotating operation ring (C).

  In the screwing process, since the center bolt (B) still has the flexibility to swing from the tip part to some extent, the first and second handrails (G1) and (G2) should be in an accurate 180 degree butt condition. Even if it is in an inclined posture state that slightly crosses, the rotation operation of the rotation operation ring (C) can be easily performed, and the screw shaft portion (10) of the center bolt (B) is fixed to the fixed ring (D ) Side screw hole (16) can be screwed and fastened smoothly and surely so as to align itself.

  At the end of tightening of the center bolt (B), as apparent from FIGS. 2 to 4, the mounting seat plate (14) on the stationary ring (D) side and the cover ring receiving flange on the rotating operation ring (C) side (6) sandwiches the partition wall (24) of the cover ring (23) in the support bracket (E) and rotates it into both decorative flanges (23a) and (23b) of the cover ring (23). Since the cover ring receiving flange (6) on the ring (C) side, the mounting seat plate (14) and the boss (15) on the stationary ring (D) side are received, the first and second handrails (G1) (G2 ) Can be obtained in a stable and strong connection state.

  Similarly, at the end of tightening, the ring packing (28) previously inserted and fitted into the boss (15) of the fixed ring (D) is attached to the mounting seat (14) and cover of the fixed ring (D). Rotation in a screwed and fastened state with the partition wall (26) sandwiched between the ring (23) and the partition wall (24) so as to be compressed and deformed and exhibit its restoring elastic force. The operating ring (C) and the stationary ring (D) are fixed and integrated in a bound state that absorbs them without causing any mutual swinging movement or rattling.

  Until the end of tightening of the center bolt (B), the support bracket is used with the boss (15) of the fixed ring (D) inserted into the cover ring (23) as a rotation axis. Since (E) can be swung, the pedestal (21) of the support bracket (E) can be stably attached and fixed to the wall surface (W) of the building with a flat screw (20) in an accurate surface contact state. Needless to say.

  Therefore, the receiving seat (F) is finally applied to the lower surface of the bending arm (22), the rotation operation ring (C) and the first handrail (G1) of the support bracket (E), and the receiving seat (F). Is attached and fixed to the bending arm (22) and the first handrail (G1) with a plurality of countersunk screws (31) to prevent the risk of the first handrail (G1) rotating inadvertently.

  FIGS. 28 to 34 show examples of construction of a continuous handrail by the above-described operation method, and the first and second handrails (G1) and (G2) are alternately used by using the handrail connecting bracket (J) of the present invention. If they are added and connected, all of them can be kept in a fixed state in which they cannot rotate, which is useful for safety in gripping.

  In addition, the other code | symbol (T) in FIGS. 28-34 shows the 1st handrail (G1) or 2nd handrail (G2) of the curved-bar form used as the edge part of a continuous handrail to the wall surface (W) of a building. A handrail mounting bracket for mounting and fixing, a metal base plate (35) having a substantially U-shaped cross section seated on a wall surface (W) of the building by a plurality of fixing screws (34), and the first A metal end cover plate (37) having a substantially U-shaped cross section, which is also fixedly attached to the attachment end face of the handrail (G1) or the second handrail (G2) via a plurality of countersunk screws (36), and its base plate (35) and a metal nut (38) fastened in a covering state to the end cover plate (37).

  The nut (38) is provided with a restraining flange (38a) for pressing the end cover plate (37) on the handrail side, and a female screw (38b) engraved on the inner peripheral surface of the nut (38) is provided on the outer periphery of the base plate (35). The first handrail (G1) or the second handrail (G2) is attached and fixed to the wall surface (W) of the building by being screwed and fastened with a male screw (35a) formed corresponding to the surface. Such mounting and fixing work on the wall surface (W) of the building is performed prior to the connecting work of adding the first and second handrails (G1) and (G2) using the handrail connecting bracket (J) of the present invention. It will be. In addition, (M) is an intermediate support bracket which takes charge of the middle part of a long handrail.

It is sectional drawing which shows the decomposition | disassembly state of the handrail coupling metal fitting which concerns on this invention. It is sectional drawing which similarly shows the assembly use state of a handrail coupling metal fitting. FIG. 3 is a sectional view taken along line 3-3 in FIG. 2. FIG. 4 is an enlarged sectional view taken along line 4-4 of FIG. It is sectional drawing which shows the decomposition | disassembly state corresponding to FIG. It is a front view which extracts and shows the rotation operation ring of FIG. It is a front view which extracts and shows the stationary ring of FIG. It is sectional drawing which shows the connection operation | work process of the handrail following FIG. It is a front view which extracts and shows a fixed seat board. FIG. 10 is an enlarged sectional view taken along line 10-10 in FIG. 9; FIG. 11 is a cross-sectional view taken along line 11-11 in FIG. 9. It is a slope view which extracts and shows a center bolt. It is a front view which extracts and shows a rotation operation ring. FIG. 14 is a cross-sectional view taken along line 14-14 of FIG. It is a front view which extracts and shows a stationary ring. FIG. 16 is a rear view of FIG. 15. FIG. 17 is a cross-sectional view taken along line 17-17 in FIG. 15. FIG. 18 is a cross-sectional view taken along line 18-18 in FIG. 15. It is a front view which extracts and shows the support bracket for handrails. FIG. 20 is a side view of FIG. 19. FIG. 20 is a sectional view taken along line 21-21 in FIG. FIG. 22 is a cross-sectional view taken along line 22-22 in FIG. 19. It is a top view which extracts and shows the handrail rotation prevention receiving seat. FIG. 24 is a cross-sectional view taken along line 24-24 in FIG. FIG. 25 is a sectional view taken along line 25-25 in FIG. 24. It is a front view which extracts and shows a ring packing. FIG. 27 is a sectional view taken along line 27-27 in FIG. 26. It is a front view which shows the construction example of the continuous handrail by use of this invention. It is a top view of FIG. FIG. 29 is an enlarged right side view of FIG. 28. It is the 31-31 line expanded sectional view of FIG. FIG. 29 is an enlarged cross-sectional view taken along line 32-32 in FIG. 28. It is a 33-33 line expanded sectional view of Drawing 28. It is a 34-34 sectional view taken on the line of FIG.

Explanation of symbols

(1) (13) (20) (31) (36) · Countersunk screw (2) · Head receiving hole (2a) · Locking notch (3) (17) (30) · Countersunk screw receiving hole (4)・ Board (5) ・ Decorative flange (6) ・ Cover ring receiving flange (7) ・ Center bolt receiving hole (8) ・ Counter screw escape hole (9) ・ Neck (10) ・ Screw shaft (11) ・ Head Part (12), O-ring (14), mounting seat plate (15), boss (16), screw hole (17), boss (18), countersunk notch (19), reinforcing rib group (21), Pedestal (22), Bending arm (23), Cover ring (23a) (23b), Decorative flange (24), Partition wall (25), Boss escape hole (26), Screw hole (27) (34) Fixing screw (28), ring packing (29), conical protrusion (32), locking step (35) · Base plate (35a) · Male screw (37) · End cover plate (38) · Nut (38a) · Stop flange (38b) · Female screw (A) · Fixed seat plate (B) · Center bolt ( C) ・ Rotating operation ring (D) ・ Fixed ring (E) ・ Support bracket (F) ・ Receiver seat (J) ・ Handrail coupling bracket (M) ・ Intermediate support bracket (T) ・ Handrail mounting bracket (W ) ・ Wall (G1) ・ First handrail (G2) ・ Second handrail

Claims (3)

A circular fixed seat plate (A) that is attached to and integrated with the connection end face of the first handrail (G1);
A pivotable center bolt (B) that is penetrated in the center of the fixed seat plate (A) in a retaining state;
A rotation operation ring (C) preliminarily assembled to the fixed seat plate (A) through the center bolt (B);
A stationary ring (D) that is attached to and integrated with the connection end surface of the second handrail (G2) facing the connection end surface of the first handrail (G1);
A cylindrical boss (15) projecting integrally from the center of the fixed ring (D) toward the rotating operation ring (C) and for receiving the center bolt formed in the boss (15). A screw hole (16);
The cover ring (23) that can cover the fixed ring (D) and the cover ring (23) can be covered by integrally projecting from the handrail support bracket (E) that is attached and fixed to the wall surface (W) of the building. The boss escape hole (25) formed in the partition wall (24) with an opening,
When the center bolt (B) on the fixed seat plate (A) side is screwed and tightened with the screw hole (16) on the fixed ring (D) side by the rotation operation of the rotation operation ring (C). ,
The cover ring (23) of the support bracket (E) is partially fitted to the outer peripheral surface of the rotation operation ring (C) in a flush manner, and the partition wall (24) of the cover ring (23) is rotated. A handrail connection fitting, which is set so as to be sandwiched and fixed between the operation ring (C) and the fixed ring (D). A circular base plate (4) in which the rotating operation ring (C) is in surface contact with the fixed seat plate (A), and the outer peripheral surface of the fixed seat plate (A) and the first handrail (G1) are covered from the peripheral portion. A relatively small cover ring that projects relatively shortly in the direction of existence of the second handrail (G2) that is opposite from the peripheral edge of the substrate (4), and a large decorative flange (5) that projects relatively long in the direction. While shaped into a substantially horizontal H-shaped cross section in a stepped state with a receiving flange (6),
A pedestal (21) to which the handrail support bracket (E) is attached and fixed to the wall surface (W) of the building, a substantially L-shaped bent arm (22) protruding from the pedestal (21), and the bent arm (22 As an integrated product consisting of a cover ring (23) continuous to the protruding tip of
A decorative flange (23a) projecting relatively short from the peripheral edge of the partition wall (24) in the cover ring (23) in the direction in which the rotation operation ring (C) exists is covered with the cover of the rotation operation ring (C). While being fitted to the ring flange (6) in a covered state,
Similarly, a decorative flange (23b) projecting relatively long from the peripheral edge of the partition wall (24) in the opposite direction of the second handrail (G2) is provided on the outer periphery of the stationary ring (D) and the second handrail (G2). The handrail connection fitting according to claim 1, wherein the surface is covered. A pedestal (21) to which the handrail support bracket (E) is attached and fixed to the wall surface (W) of the building, a substantially L-shaped bent arm (22) protruding from the pedestal (21), and the bent arm (22 As an integrated product consisting of a cover ring (23) continuous to the protruding tip of
A separate handrail rotation prevention seat (F) that can be fitted to the lower surfaces of the first handrail (G1) and the rotation operation ring (C) is provided to the projecting tip of the bending arm (22). The handrail connecting bracket according to claim 1, wherein the handrail connecting bracket is attached by a fixing screw (27) from the longitudinal direction of the first and second handrails (G1) and (G2).

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