JP6580369B2 - Handrail bar end mounting structure - Google Patents

Description

  The present invention relates to an end mounting structure and an end mounting bracket of a handrail bar used when attaching an end of a handrail bar to a support member, for example, in an indoor staircase or a corridor of a general house or the like.

  An open staircase with one or both sides open is well known as a wooden indoor staircase of a general house or the like. In a handrail attached to the open side of an open staircase (open handrail), the middle part of the handrail bar in the longitudinal direction is usually supported by handrails erected at predetermined intervals, and the upper end and lower end are the parent. It is supported by a support member such as a column or wall surface.

  For example, in the end attachment structure of the handrail bar shown in Patent Document 1, a flange fixed to the end of the handrail bar is fixed to the main pillar by screwing. Further, the handrail bar end mounting structure shown in Patent Document 2 has an inverted V-shaped (mountain-shaped) locking member fixed to the main pillar, and has an inverted V-shaped hook groove at the end of the handrail bar. The hook member is fixed, and the end of the handrail bar is engaged with the main pillar by fitting the hook groove into the locking member. Furthermore, the end attachment structure of the handrail bar shown in Patent Document 3 has a nail driving recess formed on the lower surface side of the end of the handrail bar, and the nail driven into the inner peripheral surface of the recess is fixed to the main pillar. By doing so, the end portion of the handrail bar is fixed to the main pillar.

JP 2002-339537 A JP-A-6-280366 JP 7-42333 A

  In the end attachment structure of the handrail bar shown in Patent Documents 1 and 2, since the flange and the hooking member are attached to the end of the handrail bar, these members become noticeable and feel uncomfortable, which makes the appearance worse. There was a problem that it was difficult to obtain an aesthetic appearance. Further, the end attachment structure of the handrail bar shown in Patent Documents 1 and 2 attaches the flange and the hooking member of the end of the handrail bar in close contact with the support member without gaps. Will be formed. For this reason, there has been a problem that high dimensional accuracy is required and mounting work is difficult.

  In addition, in the handrail stick end attachment structure shown in Patent Document 3, it is necessary to separately attach a concealing plate (decorating board) for concealing the nail driving recess formed in the handrail stick end. There was a problem that became troublesome. Further, in Patent Document 3, as in Patent Documents 1 and 2, since the end of the handrail bar is attached in a state of being closely adhered to the support member without a gap, high dimensional accuracy is required, and the attachment work becomes even more difficult. There was a problem of becoming.

  The present invention has been made in view of the above-described problems, and is capable of easily performing a handrail stick attaching operation and obtaining a good aesthetic appearance. The purpose is to provide.

  In order to solve the above problems, the present invention comprises the following means.

[1] An end attachment structure for a handrail bar in which an end of a handrail bar is attached to a support member,
A first fitting attached to an end of the handrail bar;
A second fitting attached to the support member corresponding to the first fitting,
Among the first metal fitting and the second metal fitting, one side is constituted by a male fitting, and the other side is constituted by a female fitting,
The male fitting is provided with a retaining pin in which a retaining part having a large diameter is formed at the tip of a shaft part protruding toward the female fitting side,
The female fitting includes a receiving plate extending in a direction orthogonal to the retaining pin and having a slot opened at one end,
The shaft part of the male metal fitting is inserted and arranged in the slot of the female metal fitting from one end opening thereof, so that the retaining part can be engaged with both side edges of the slot of the receiving plate. An end attachment structure for a handrail bar, wherein an end is attached to the support member.

  [2] The end attachment structure for a handrail bar according to the preceding item 1, wherein a bracket attachment recess is formed at an end of the handrail bar, and the first bracket is mounted in the recess.

[3] While the first metal fitting is constituted by the male metal fitting, the second metal fitting is constituted by the female metal fitting,
The slot of the female fitting is arranged along the vertical direction so that one end opening is arranged at the upper end, and the retaining pin of the male fitting is inserted and arranged in the slot from above. An end mounting structure of the handrail bar as described.

  [4] Any one of the preceding items 1 to 3, further comprising a retaining means for preventing the shaft portion from being detached from one end opening of the slot in a state where the shaft portion of the retaining pin is inserted into the slot. The end attachment structure of the handrail bar according to item 1.

  [5] The handrail bar end mounting structure according to any one of the above items 1 to 4, wherein the handrail bar of the handrail bar is disposed along an open side surface of the stairs.

[6] An end fitting for the handrail rod for attaching the end portion of the handrail rod to the support member,
A first fitting attachable to an end of the handrail bar;
A second bracket that can be attached to the support member in correspondence with the first bracket;
Among the first metal fitting and the second metal fitting, one side is constituted by a male fitting, and the other side is constituted by a female fitting,
The male fitting is provided with a retaining pin in which a retaining part having a large diameter is formed at the tip of a shaft part protruding toward the female fitting side,
The female fitting includes a receiving plate extending in a direction orthogonal to the retaining pin and having a slot opened at one end,
When the male metal shaft is inserted into the slot of the female metal fitting from the opening of one end thereof, the retaining member can be engaged with both side edges of the slot of the receiving plate. An end fitting for a handrail bar, which is configured to be attached to the female fitting.

  According to the end attachment structure of the handrail bar of the invention [1], the handrail bar is attached to the support member so that the first metal fitting on the handrail bar side and the second metal fitting on the support member side are engaged with each other. It can be easily attached, and there is no uncomfortable part such as a flange for attachment, and a good aesthetic appearance can be obtained. Furthermore, since play can be provided between the first and second metal fittings, both metal fittings can be engaged smoothly and smoothly within the range of the play, so that the handrail bar can be attached more easily. be able to.

  According to the end attachment structure of the handrail bar of the invention [2], since the metal fitting attachment recess is formed in the handrail bar and the first metal fitting is accommodated in the recess, the presence of the metal fittings is almost recognized from the outside. Therefore, the metal fittings can be sufficiently concealed and an even better aesthetic appearance can be obtained.

  According to the end attachment structure of the handrail bar of the invention [3], the handrail bar can be hooked by placing the male handpiece on the handrail bar side on the female fitting on the support member side from above. Can be performed even more easily.

  According to the end attachment structure of the handrail bar of the invention [4], it is possible to surely prevent both the fittings in the attached state from being inadvertently detached, and to ensure that the handrail bar is stably in a support member such as a main pillar. Can be attached to.

  According to the end attachment structure of the handrail bar of the invention [5], it is possible to employ the above-mentioned effects in a wooden open staircase or the like without any trouble.

  According to the end bracket of the handrail bar of the invention [6], the handrail bar can be easily attached as described above, and a good aesthetic appearance can be obtained.

FIG. 1 is a side view showing the vicinity of the upper end of a wooden indoor staircase to which an end attachment structure for a handrail bar according to an embodiment of the present invention is applied. FIG. 2 is an exploded perspective view showing an end attachment structure of the handrail bar of the embodiment. FIG. 3 is a cross-sectional view showing an end attachment structure of the handrail bar of the embodiment. FIG. 4 is an exploded cross-sectional view showing an end attachment structure of the handrail bar of the embodiment. FIG. 5 is a perspective view showing an end portion of a handrail bar employed in the embodiment. FIG. 6 is a perspective view showing a female fitting employed in the embodiment. FIG. 7 is a sectional view showing a male fitting which is a first modification of the present invention. FIG. 8 is a perspective view showing a male fitting as a second modification of the present invention. FIG. 9 is a cross-sectional view showing an end attachment structure for a handrail bar according to a third modification of the present invention. FIG. 10 is a perspective view showing a female fitting applied to the handrail bar end mounting structure of the third modification. FIG. 11 is a cross-sectional view showing an end attachment structure for a handrail bar according to a fourth modification of the present invention. FIG. 12 is a cross-sectional view showing an end attachment structure for a handrail bar according to a fifth modification of the present invention.

  FIG. 1 is a side view showing the vicinity of the upper end portion of an indoor wooden staircase to which an end attachment structure of a handrail bar according to an embodiment of the present invention is applied. As shown in the figure, the stair includes a stair body and a wooden handrail 1 attached to an open side surface of the stair body. In this specification, in order to facilitate understanding of the invention, the direction of going up the stairs (right direction in FIG. 1) is referred to as “front direction”, and the direction of going down (left direction in FIG. 1) is described as “rear direction”. .

  The staircase body is provided with a plurality of step plates 9 arranged side by side at predetermined intervals in the vertical direction and the front-back direction. In the present embodiment, a kick plate is attached to the adjacent step plates 9 and 9 from the lower surface of the front end portion of the upper step plate 9 to the upper surface of the rear end portion of the lower step plate 9.

  In this embodiment, the handrail 1 includes a handrail bar 11 having a flat rectangular cross section that is wider than the thickness, and a main pillar 18 and a handrail 19 that support the handrail bar 11. The main pillar 18 is erected at both upper and lower ends of the staircase, and the upper and lower ends of the handrail bar 11 are supported by the parent pillar 18 as will be described in detail later. The handrails 19 are erected on the step plates 9 at predetermined intervals between the main pillars 18 at both ends, and the handrail bars 19 support the intermediate portion of the handrail bar 11.

  In the present embodiment, the handrail 19 is made of a metal product, and the parent pillar 18 is made of a prismatic woody material.

  The handrail bar 11 includes a handrail bar body 12 and end parts 13 that are detachably connected to both ends of the handrail bar body 12. The end part 13 constitutes an end portion of the handrail bar 11. For example, the end part 13 has a length dimension of 80 mm to 150 mm, a thickness dimension of 20 mm to 30 mm, and a width dimension of 50 mm to 80 mm.

  As the material of the handrail rod body 12 and the end part 13 as the handrail rod 11, a solid material, a wooden material such as a laminated material, or a wooden material such as a wood powder resin is adopted. However, in the present invention, the material of the handrail bar 11 is not limited, and other materials than wood such as metal and resin can be used.

  In the present embodiment, an end part 13 as an end portion of the handrail bar 11 is connected to the main pillar 18 via metal fittings 2 and 3 described in detail below.

  2-6 is a figure which shows the edge part attachment structure of the handrail rod of this embodiment. As shown in these drawings, the end part 13 as the end portion of the handrail bar 11 is provided with a metal male fitting 2 as a first fitting, and the main pillar 18 is made of a metal as a second fitting. Female fitting 3 is provided. In the present embodiment, the end fitting is constituted by the first fitting such as the male fitting 2 and the second fitting such as the female fitting 3.

  The male fitting 2 includes a base plate portion 21 fixed to the handrail rod 11, a connecting plate portion 22 that is formed integrally with the front end edge of the base plate portion 21 and arranged substantially vertically, and the front end of the connecting plate portion 22. A horizontal plate portion 23 formed integrally with the edge and disposed substantially horizontally, and a vertical plate portion 24 formed as a pin support plate portion formed integrally with the front end edge of the horizontal plate portion 23 and disposed substantially vertically. And. Furthermore, a screw insertion hole 211 is formed in the base plate portion 21 (see FIGS. 2 and 5), and a screw retaining hole 231 in which a female screw is cut is formed in the horizontal plate portion 23.

  A retaining pin 25 is fixed to the vertical plate portion 24. The retaining pin 25 is perpendicular to the plate surface of the vertical plate portion 24 and protrudes forward, and is provided at the front end of the shaft portion 26 and has a diameter larger than that of the shaft portion 26. And a large retaining portion 27.

  The handrail bar 11 is formed with a mounting groove 16 which is continuous in the length direction at the center of the lower surface side (back surface side), and the handrail 19 (see FIG. 1) is connected in the mounting groove 16. It has become. Furthermore, a metal fitting mounting recess 15 having a depth deeper than the mounting groove 16 is formed in the center of the rear surface side of the front end portion (end part 13) of the handrail bar 11. The metal fitting recessed portion 15 is opened forward on the front end surface of the handrail bar 11, and the rear end side communicates with the mounting groove 16.

  The male fitting 2 is attached in the fitting attachment recess 15 of the handrail bar 11. That is, the base plate portion 21 is mounted on the bottom surface of the mounting groove 16 so that the connecting plate portion 22, the horizontal plate portion 23, the vertical plate portion 24 and the retaining pin 25 of the male fitting 2 are accommodated in the fitting mounting recess 15. It is arranged in the vicinity of the mounting recess 15. In this state, the screw 28 is inserted into the screw insertion hole 211 of the base plate portion 21, and the screw 28 is screwed into the bottom surface of the mounting groove 16 in the handrail bar 11 to be fixed. It is fixed to the front end (upper end).

  In the state where the handrail bar 11 with the male fitting is assembled to the staircase, the connecting plate portion 22 and the vertical plate portion 24 of the male fitting 2 are arranged substantially vertically as described above, and the horizontal plate portion 23 is arranged almost horizontally. It is arranged. Further, the retaining pin 25 (shaft portion 26) is disposed so as to project forward, in other words, project toward the female fitting 3 side.

  The female fitting 3 has a screw insertion hole 311 and is arranged vertically, a base plate portion 31, a connecting plate portion 32 formed integrally with a lower end edge of the base plate portion 31, and a tip of the connecting plate portion 32. And a receiving plate portion 33 that is formed integrally with the edge and arranged vertically so as to be parallel to the base plate portion 31. Further, the receiving plate portion 33 is formed with a slot 34 whose upper end is opened. The width of the slot 34 is larger than the diameter dimension of the shaft portion 26 in the male fitting 2 and smaller than the diameter dimension of the retaining portion 27. Note that the width of the receiving plate portion 33 is formed to be narrower than the width of the metal fitting mounting recess 15 of the handrail bar 11, and the receiving plate portion 33 is configured to be accommodated in the metal fitting mounting recess 15.

  In a state where the base plate portion 31 of the female metal fitting 3 is arranged at a position where the handrail rod end portion is to be attached on the rear surface of the main pillar 18, as shown in FIG. Is inserted and the screw 38 is screwed and fixed to the rear surface of the main pillar 18 so that the female fitting 3 is fixed to the main pillar 18. In this fixed state, as described above, the base plate portion 31 and the receiving plate portion 33 are disposed substantially vertically, and the connecting plate portion 33 is disposed substantially horizontally.

  Then, the male fitting 2 fixed to the handrail rod 11 is hooked on the female fitting 3 fixed to the main pillar 18 to attach the end of the handrail rod 11 to the main pillar 18. That is, the shaft portion 26 of the retaining pin 25 of the male fitting 2 is inserted from the upper end opening of the slot 34 in the receiving plate portion 33 of the female fitting 3, and the retaining pin 25 is disposed in the slot 34 of the receiving plate portion 33. . In this state, the retaining portion 27 can be engaged with both side edges of the slot 34 on the back surface side of the receiving plate 33, and by this engagement, the handrail rod 11 (male bracket 2) is moved to the main pillar 18 (female bracket 3. ) Is prevented from slipping backward. In this attached state, the receiving plate portion 33 of the female fitting 3 is housed in the fitting mounting recess 15 of the handrail bar 11 together with the male fitting 2.

  Here, in the present embodiment, the length dimension of the shaft portion 26 of the male metal fitting 2 is formed to be longer than the thickness dimension of the receiving plate portion 33 of the female metal fitting 3 by a predetermined amount. In contrast, play is provided in the axial direction. Further, the diameter dimension of the shaft portion 26 of the male metal fitting 2 is formed by a predetermined amount smaller than the width dimension of the slot 34 of the female metal fitting 3, and the male metal fitting 2 is provided with play in the width direction with respect to the female metal fitting 3. Needless to say, the shaft portion 26 of the male metal fitting 2 is movable in the vertical direction with respect to the slot 34 of the female metal fitting 3, and the shaft portion 26 of the male metal fitting 2 is also moved in the direction around the axis with respect to the slot 34 of the female metal fitting 3. Is possible. Accordingly, the male fitting 2 is provided with play in all directions of the female fitting 3 in the front-rear direction (axial direction), the left-right direction (width direction), the vertical direction, and the direction around the axis.

  On the other hand, in the present embodiment, a detachment preventing means for preventing the male metal fitting 2 from being detached from the female metal fitting 3 is provided. In this embodiment, the detachment prevention means is constituted by a plate-like stopper 4 having a screw insertion hole 41 formed at the end and a screw 42.

  After the handrail bar 11 (male metal fitting 2) is attached to the main pillar 18 (female metal fitting 3), the stopper 4 is placed on the lower surface side of the horizontal plate portion 23 in the male fitting 2 and on the lower surface side of the connecting plate portion 32 in the female fitting 3. The screw insertion holes 41 of the stopper 4 are arranged so as to correspond to the screw fastening holes 231 of the male fitting 2. In this state, the screw 42 is inserted into the screw insertion hole 41 of the stopper 4 from below and screwed into the screw fastening hole 231 to be fixed. In this state, the stopper 4 is engaged with the lower end surface of the female fitting 3 so that the male fitting 2 is prevented from moving upward with respect to the female fitting 3. 3 is prevented from coming out upward from the slot 34, and the male fitting 2 can be reliably prevented from being inadvertently detached from the female fitting 3.

  As described above, in the handrail stick end attachment structure of the present embodiment, the male fitting 2 fixed to the lower end of the end portion (end part 13) of the handrail stick 11 is replaced with the female fitting 3 fixed to the main pillar 18. Since it is hooked and attached, there is no part of the mounting flange or the like that is overhanging as in the prior art, and a good aesthetic appearance can be obtained.

  Furthermore, in the present embodiment, the metal fitting mounting recess 15 is formed in the handrail bar 11 and a part of the male metal fitting 2 and the female metal fitting 3 is accommodated in the concave portion 15. Can be concealed. Therefore, the presence of the male metal fitting 2 and the female metal fitting 3 is hardly recognized from the outside, and an even better aesthetic appearance can be obtained.

  Moreover, in this embodiment, since the male metal fitting 2 of the handrail rod 11 can be assembled only by hooking on the female metal fitting 3 of the main pillar 18, the handrail bar 11 can be easily attached to the main pillar 18.

  Furthermore, in this embodiment, since the slot 34 in the female fitting 3 on the main pillar 18 side is opened upward, the male fitting 2 on the handrail rod 11 side is mounted on the female fitting 3 on the main pillar 18 side from above. If it is placed, it can be hooked and the handrail bar 11 can be attached to the main pillar 11 more easily.

  Further, in the mounting structure of the present embodiment, the shaft portion 26 of the retaining pin 25 in the male fitting 2 of the handrail bar 11 is inserted into the slot 34 of the female fitting 3 in the main pillar 18. The play with respect to the main pillar 18 of the handrail rod 11 can be provided in all directions such as the axial direction, the direction around the axis, the width direction (left and right direction) of the slot 34, and the length direction (vertical direction) of the slot 34. Accordingly, the male fitting 2 can be smoothly and smoothly attached to the female fitting 3 within the above-mentioned range of play, so that the work of attaching the handrail bar 11 to the main pillar 18 can be performed more easily.

  Further, in the present embodiment, the stopper 4 is screwed to the male metal fitting 2 and the stopper 4 is engaged with the lower end surface of the female metal fitting 3 so that the male metal fitting 2 moves upward (disengagement direction) with respect to the female metal fitting 3. Therefore, the male fitting 2 can be reliably prevented from being inadvertently detached from the female fitting 3, and the handrail bar 11 can be reliably attached to the main pillar 18 in a stable state.

  In the above embodiment, the case where the end portion of the handrail bar 11 is attached to the support member such as the main pillar 18 has been described as an example. However, the present invention is not limited thereto, and in the present invention, the end portion of the handrail bar is supported by other support. You may make it attach to a member. For example, the present invention can also be applied to the case where an end portion of a handrail bar is attached to a support member such as an indoor wall surface or a pillar.

  Moreover, in the said embodiment, although the case where the upper end part of the handrail stick 11 was attached to the support member was described as an example, the present invention is not limited to this, and the present invention is also applicable to the case where the lower end part of the handrail stick is attached to the support member. can do. In this case, for example, if the male metal fitting 2 is turned upside down and attached to the lower end portion of the handrail rod, or the bending angle of the plate portions 22 to 24 of the male metal fitting 2 is appropriately changed, the handrail rod is similar to the above. Can be attached to the support member.

  Further, in the above embodiment, the stopper 4 as the stopper means is screwed only to the male fitting 2, but the present invention is not limited to this, and in the present invention, the stopper 4 is attached to the female fitting 3 as shown in FIG. The connecting plate portion 32 may also be fixed with screws 42. Further, the connecting plate portion 32 may be pushed up with the screw 42 without providing the screw hole.

  Furthermore, the stopper means may be configured by a snap-type stopper mechanism. In the snap-type stopper mechanism, a stopper that closes the opening is attached to the upper end opening of the slot 34 in the female fitting 3 so as to be freely opened and closed, and when the retaining pin 25 of the male fitting 2 is inserted into the slot 34. When the stopper is pushed by the retaining pin 25, the upper end opening of the slot 34 is opened and the retaining pin 25 is inserted into the slot 34, and when the retaining pin 25 is inserted all the way into the slot 34, the stopper 34 is detached. The stopper pin 25 is released from being pushed into the stopper, and the stopper is automatically returned to the closed state by a biasing means such as a spring.

  In the female metal fitting 3 of the above embodiment, the connecting plate portion 32 connects the base plate portion 31 and the lower end portion of the receiving plate portion 33 (see FIG. 6), but the present invention is not limited thereto. In FIG. 8, the upper part of the base plate part 31 and the receiving plate part 33 may be connected by a connecting plate part 32 as shown in FIG. In this case, an opening 29 having a size that allows the retaining portion 27 of the male metal fitting 2 to pass through is formed in a portion corresponding to the slot 34 in the connecting plate portion 3, so that the retaining pin 25 of the male metal fitting 2 can be connected to the female. The metal fitting 3 can be securely inserted into and removed from the slot 34.

  Moreover, in the said embodiment, although the male metal fitting 2 is fixed to the handrail rod 11 and the female metal fitting 3 is fixed to a support member, it is not restricted only to it, and the male metal fitting 2 is fixed to support members, such as a main pillar. In addition, the female fitting 3 may be fixed to the handrail bar 11. That is, the male fitting 2 may be the second fitting and the female fitting 3 may be the first fitting. In this case, as shown in FIGS. 9 and 10, for example, by fixing the female fitting 3 on the handrail bar 11 side upside down, the female fitting 3 on the handrail bar 11 side is supported by the main pillar 18 and the like. The male metal fitting 2 on the member side can be hooked from the upper side, and good mounting workability can be obtained. In the case of adopting such a configuration, as shown in FIG. 9, for example, as shown in FIG. A connecting plate part 122 formed at the edge, a pin support plate part 123 formed at the front end edge of the connecting plate part 122 and arranged parallel to the base plate 121, and a pin support plate part 123. What provided with the retaining pin 25 provided so that it might protrude in the female metal fitting 3 side can be used.

Further, when the configuration of FIG. 9 is employed, the following configuration can be employed as the detachment preventing means. For example, as shown in FIG. 11, a protruding plate portion 39 protruding toward the male fitting 2 side is formed at the lower end of the base plate portion 31 of the female fitting 3, and the male fitting 2 side is formed on the lower surface of the protruding plate portion 39. the stopper 4 is fixed by a screw 42 so as to protrude toward the, by engaging the stopper 4 to the lower surface of the connecting plate portion 122 of the male fitting 2 side, it is sufficient to achieve the latch. Further, as shown in FIG. 12, the stopper 4 screwed to the protruding plate portion 39 of the female fitting 3 may be fixed to the connecting plate portion 122 of the male fitting 2 with the screw 42. Further, the connecting plate portion 122 may be pushed up with the screw 42 without providing the screw hole.

  Further, in the above-described embodiment and the like, the case where the one end opening of the slot 34 of the female fitting 3 is arranged upward or downward has been described as an example. However, the present invention is not limited thereto, and in the present invention, the slot 34 of the female fitting 3 The one-end opening may be arranged horizontally, obliquely upward, and obliquely downward.

  Further, in the above embodiment, the case where the handrail bar is arranged on the open surface has been described as an example. However, the present invention is not limited thereto, and in the present invention, the case where the handrail bar is arranged on the closed surface such as the wall surface is described above. The same can be applied.

  Moreover, in the said embodiment, although the case where this invention was applied to the handrail for stairs was mentioned as an example and demonstrated, the application location of this invention is not specifically limited. For example, the present invention can be applied not only to stairs but also to handrails assembled in step slopes, corridors, toilet rooms, entrances, washrooms, bathrooms, and the like.

  The handrail stick end mounting structure of the present invention can be applied to an open staircase that is assembled indoors such as a general house.

11: Handrail bar 13: End parts (end)
15: Bracket mounting recess 18: Main pillar (support member)
2: Male bracket (first bracket)
25: Retaining pin 26: Shaft portion 27: Retaining portion 3: Female fitting (second fitting)
33: Receiving plate part (receiving plate)
34: Slot 4: Stopper (Release prevention means)
42: Screw (detachment prevention means)

Claims (4)

An end attachment structure for a handrail bar in which the end of the handrail bar is attached to a support member,
A first fitting attached to an end of the handrail bar;
A second fitting attached to the support member corresponding to the first fitting,
Among the first metal fitting and the second metal fitting, one side is constituted by a male fitting, and the other side is constituted by a female fitting,
The male fitting is provided with a retaining pin in which a retaining part having a large diameter is formed at the tip of a shaft part protruding toward the female fitting side,
The female fitting includes a receiving plate extending in a vertical direction perpendicular to the retaining pin and having a slot with one end opened,
The shaft portion of the male metal fitting is inserted and arranged in the slot of the female metal fitting from one end opening so that the first metal fitting is hooked from the upper side with respect to the second metal fitting, so that the retaining portion is the receiving plate. in engageable state of the slot side edges, while the end portions of the handrail rods Ru attached to the support member,
A stopper that protrudes toward the second metal fitting is fixed to the lower end of the first metal fitting, and the stopper engages with the lower surface of the second metal fitting, so that the shaft portion extends from one end opening of the slot. An end attachment structure for a handrail bar, which is configured to be prevented from being detached .   The end attachment structure of the handrail bar according to claim 1, wherein a fitting attachment concave portion is formed at an end portion of the handrail rod, and the first fitting is accommodated in the concave portion. Wherein with the first metal fitting is constituted by the male fitting, the end attachment structure of the handrail rods according to claim 1 or 2, wherein the second metal fitting is constituted by said female fitting. Before SL handrail rod end mounting structure of the handrail rods according to any one of claims 1 to 3 disposed along the open side of the staircase.

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