JP2016061104A - Sliding door with handrail, and building - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance stability and reliability of a handrail fitted on a sliding door, without relying on the door for ensuring support strength of the handrail.SOLUTION: A column 10 is erected on a floor surface at a location not aligned with an effective opening 4E of an opening 4 of a building, when sliding doors 7, 7 are opened. On the column 10, tail-end side handrail parts 12a, 12a of handrails 12, 12 on right and left are supported rotatably, with a rotary shaft 15 in between. Door-end side handrail parts 12b, 12b of the handrails 12, 12 are supported rotatably on a door end of the sliding doors 7, 7, and the handrail parts 12a, 12b are connected by a connection part 14. The handrails 12, 12 extend linearly on the floor surface when the sliding doors 7, 7 are closed. When the sliding doors 7, 7 are opened, the connection part 14 moves upward to bend the handrails, so that the handrails are not aligned with the effective opening 4E of the opening 4.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a sliding door with a handrail and a building in which the sliding door with a handrail is constructed.

  In recent years, with the increase in the elderly population, the form of home care is increasing, and various considerations for elderly people in the house are expected to continue to increase. As consideration for this elderly person, it is generally assumed that a handrail is attached to assist walking or safety is improved, and as one example, attaching a handrail to a sliding door is known.

  For example, in Patent Document 1 and Patent Document 2, one end of a handrail is supported to be pivotable about a horizontal axis on the door end side of the sliding door, and a door pillar side mounting column or By mounting and supporting a roller that moves along a vertically extending guide rail attached to a fixed body such as a wall, the roller is positioned at the lower end of the guide rail when the sliding door is closed, and the handrail is leveled While the sliding door is in the open state, the roller is positioned at the upper end of the guide rail to hold the handrail vertically so that the handrail does not obstruct the passage of the sliding door opening. It has been proposed to

Japanese Patent No. 4639358 JP 2013-256808 A

  However, in the above-mentioned conventional one, the roller that is the rotation end of the handrail is supported by the mounting column or the like via the guide rail, but the end that is the rotation center is supported by the door, and the handrail The support strength depends on the door. Therefore, when the user grips the handrail and a load is applied to the handrail, the load is mainly received by the door, and the stability and reliability of the handrail becomes insufficient.

  The present invention has been made in view of such a point, and the object thereof is to add a device to the structure for attaching the handrail to the sliding door so that the supporting strength of the handrail does not depend on the door. This is to improve the stability and reliability of the system.

  In order to achieve the above object, according to the present invention, a column member is erected on the floor surface, and one end portion of a handrail having a structure that bends upward or downward at an intermediate portion is rotatably supported on the column member. Then, the other end of the handrail is rotatably supported on the door end side end of the door.

  Specifically, the sliding door with a handrail according to the first invention is a sliding door that opens and closes an opening of a building, and a floor surface that does not overlap with an effective opening of the opening when the sliding door opens. A column member provided upright, a door-end side handrail portion positioned on the door-end side of the sliding door in the closed state, and a door-end side handrail portion positioned on the door-end side; One end of the side handrail portion is rotatably supported by the column member via the rotation shaft, while one end of the door-end side handrail portion can be rotated to the door front end portion of the sliding door via the rotation shaft. The other end of the door butt side and the door end side handrail portion is rotatably connected to each other, and a handrail that can be bent upward or downward at the connection portion between the handrail portions. This handrail extends linearly along the floor surface in the closed state of the sliding door, while the above-mentioned connection during the opening operation of the sliding door There moves upward or downward, characterized in that it is intended to bend so as not to overlap with the effective opening of the aperture.

  In the first aspect of the invention, one end of the handrail door bottom side handrail portion is rotatably supported by the column member via the rotation shaft, and one end portion of the door end side handrail portion is the door front end portion of the sliding door. The other ends of the handrail portions are rotatably connected to each other via a rotation shaft, and the handrail can be bent upward or downward at a connection portion between the handrail portions. When the sliding door is in the closed state, the handrail extends linearly along the floor surface across the column member and the door tip of the sliding door. The handrail is used by being gripped by a handrail extending linearly along the floor surface. On the other hand, during the opening operation of the sliding door, the door bottom side handrail portion supported by the column member and the door end side handrail portion supported by the door front end portion of the sliding door rotate about the rotation axis, respectively. However, the connecting portion of the two handrail portions moves upward or downward to bend the handrail, so that the handrail does not overlap the effective opening of the opening.

  In this way, the end portion (one end of the doorside side handrail portion) that is the center of rotation of the handrail is supported by the pillar member on the floor surface, and the other end (one end of the doorside side handrail portion) is the sliding door door. Since it is supported by the door tip, when the sliding door is closed and the handrail is linear, if a load is applied to the handrail, the load can be received mainly by the pillar member. Improves stability and reliability.

  In addition, the connecting portion in the middle of the handrail moves upward or downward as the sliding door opens, and the handrail is folded, so that the appearance of the handrail movement is improved.

  According to a second invention, in the first invention, when the opening operation force is applied to the handrail by the opening operation of the sliding door in the closed state, the connecting portion of the handrail is moved upward or downward. It is characterized in that a connection guide structure for guiding and bending is provided.

  In the second invention, when the sliding door is opened from the closed state and the opening operation force is applied to the handrail, the connection portion of the handrail is guided to move upward or downward by the connection guide structure. The Thus, the handrail can be smoothly bent in accordance with the opening operation of the sliding door.

  According to a third invention, in the first invention, the door bottom side handrail portion and the door end side handrail portion of the handrail are connected via a connecting member, and the handrail is in a straight state when the sliding door is closed. In some cases, the connection position of the connecting member to the door-end side handrail portion is shifted to the upper side or the lower side of the connection position to the door-end side handrail portion.

  In the third aspect of the invention, the door-side handrail portion and the door-end side handrail portion of the handrail are connected via the connection member, and the door-side handrail of the connection member is in a straight line state. Since the connecting position to the door is shifted to the upper side or the lower side than the connecting position to the door butt side handrail part, the sliding door is opened from the closed state, and the handrail is pushed by the movement of the sliding door. The connecting member rotates so that the door-end end of the door-end handrail portion is directed to the upper side or the lower side of the door-end portion of the door-end side handrail portion, and the connecting portion of both handrail portions is the upper side. Or it moves to one of the lower sides, and a handrail bends with this operation as a trigger. This makes it possible to bend the handrail smoothly.

  According to a fourth invention, in any one of the first to third inventions, a fixed handrail extending linearly along the floor surface is provided around the opening, and the handrail is a sliding door. When extending in a straight line in the closed state, it has an extension extending from the door front end to the outside of the opening, and is connected to the fixed handrail through the extension.

  In the fourth aspect of the invention, when the handrail extends linearly along the floor surface in the closed state of the sliding door, the extension extending to the outside of the opening is substantially the fixed handrail around the opening. Connected. Thus, when the sliding door is in a closed state, the handrail on the sliding door side and the fixed handrail around the opening can be made continuous. Even if the extension portion of the handrail extends to the outside of the opening portion, when the sliding door is opened, the extension portion rises, so that it does not overlap the effective opening of the opening portion.

  According to a fifth invention, in the fourth invention, the fixed handrail is fixed to a wall surface or a floor surface of a corridor communicating with the opening.

  In this 5th invention, when the sliding door is in a closed state, the handrail on the sliding door side and the fixed handrail on the wall surface or floor surface of the hallway can be made continuous around the opening.

  A building according to a sixth invention is characterized in that the sliding door with a handrail of any one of the first to fifth inventions is constructed.

  In the sixth aspect of the invention, a building is constructed in which a sliding door with a handrail having a handrail having improved stability and reliability even when a load is applied.

  As described above, according to the present invention, the column member is provided on the floor surface at a position that does not overlap with the effective opening of the opening when the sliding door that opens and closes the opening of the building is opened, and the column member can be bent. One end of the handrail doorside side of the handrail is pivotally supported, while one end of the handrail doorside side handrail portion is pivotally supported on the door tip of the sliding door, and both handrail portions The other ends of the sliding doors are pivotably connected, and the handrail extends linearly along the floor surface in the closed state of the sliding door, and when the sliding door is opened, the connecting portion is one of the upper side or the lower side. When the sliding door is in a closed state and the handrail is linear, the load applied to the handrail is mainly received by the column member. Can improve the stability and reliability of handrails. , It is possible to improve the appearance of the handrail of the movement.

FIG. 1: is the front view which looked at the sliding door with the handrail of the difference fit which concerns on Embodiment 1 of this invention from the corridor side. FIG. 2 is a schematic plan view of a sliding door with a handrail. FIG. 3 is a perspective view showing a support structure of a handrail for the column member. FIG. 4 is a partially broken plan view showing the support structure for the sliding door at the front end portion of the handrail. FIG. 5 is a front view showing a lock mechanism that prevents the handrail from being bent downward. FIG. 6 is a front view showing the movement of only the handrail when the sliding door of the sliding door with the handrail is opened and closed. FIG. 7 is a front view schematically showing the movement of the handrail when the left sliding door of the sliding door with a handrail is opened and closed. FIG. 8 is a front view schematically showing the movement of the handrail when the right sliding door of the sliding door with a handrail is opened and closed. FIG. 9 is an enlarged front view showing a modified example of the handrail connecting portion. FIG. 10 is a view corresponding to FIG. FIG. 11 is a view corresponding to FIG. FIG. 12 is a view corresponding to FIG. FIG. 13 is a front view showing a main part of the third embodiment. FIG. 14 is a view corresponding to FIG. FIG. 15 is a view corresponding to FIG. 6 illustrating the handrail of the fourth embodiment. FIG. 16 is a view corresponding to FIG. FIG. 17 is a perspective view showing a delay mechanism for bending the handrail with a delay in the initial stage of the sliding door opening operation. FIG. 18 is a view corresponding to FIG. 2 showing a sliding door with a handrail for one-way storage. FIG. 19 is a view corresponding to FIG. 2 illustrating a sliding door with a handrail for retracting. FIG. 20 is a view corresponding to FIG. 2 showing a sliding door with a handrail for drawing and drawing. FIG. 21 is an equivalent view of FIG. 2 showing an outset type sliding door with a handrail. FIG. 22 is an equivalent view of FIG. 2 showing a sliding door with a handrail of an outset type draw-and-hold.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. The following description of the embodiments is merely illustrative in nature and is not intended to limit the present invention, its application, or its use at all.

(Embodiment 1)
FIG.1 and FIG.2 shows the sliding door D with the handrail which concerns on Embodiment 1 of this invention, and this sliding door D is made into the sliding door structure of a sliding door type, for example. That is, the sliding door D has a door frame 1 constructed in, for example, an opening between the hallway C and the room R in the building, and the door frame 1 has two doors positioned on the left and right when viewed from the front side on the hallway C side. The vertical frames 2 and 2 and the upper frame 3 (kamoi) horizontally installed between the upper ends of the vertical frames 2 and 2, and inside the door frame 1, the front corridor C and the rear chamber An opening 4 communicating with R is formed.

  The upper frame 3 is supported by hanging left and right sliding doors 7 and 7 that open and close the opening 4 in the door frame 1. Although not shown, each sliding door 7 is suspended from the upper frame 3 so as to be slidable in the horizontal direction by moving a suspension door fixed to the sliding door 7 in an upper suspension rail fixed to the upper frame 3. The sliding door D is an inset type in which each sliding door 7 is arranged in the door frame 1. Similarly, although not shown in the drawings, a guide groove extending in the length direction is formed on the lower end surface of each sliding door 7, and each sliding door 7 is formed on the floor surface of the upper frame 3 just below the left and right center. A floor mounting guide pin mounted and fixed corresponding to is slidably engaged, and the lower end portion of each sliding door 7 is slidable in the left-right direction by the engagement between the floor mounting guide pin and the guide groove, and It is supported so that it cannot move in the front-rear direction. With such a support structure of the lower end of the sliding door 7, as will be described later, even if a load is applied to the handrail 12 supported by the sliding door 7 at the end of the door side (door side handrail portion 12 b), the sliding door The door 7 can receive a load without shifting to the rear side.

  The left sliding door 7 is disposed, for example, on the rear side (room R side) of the right sliding door 7, and when the left sliding door 7 is moved to the left end and the right sliding door 7 is moved to the right end, both sliding doors 7 and 7 are closed and the opening 4 is closed, and in the closed state of the sliding doors 7 and 7, the right end of the left sliding door 7 and the left end of the right sliding door 7 partially overlap each other in the front-rear direction. Yes. Further, when only the left sliding door 7 is moved to the right and most of the left sliding door 7 is overlapped with the right sliding door 7 at the right end in the front-rear direction, the left sliding door 7 is opened and the substantially left half of the opening 4 is left. On the other hand, when only the right sliding door 7 is moved to the left side and the most part is overlapped with the left sliding door 7 at the left end, the right sliding door 7 is opened. The substantially right half of the opening 4 is opened as an effective opening 4E. When both the left and right sliding doors 7 and 7 are opened, the left and right sides of the opening 4 are opened as effective openings 4E and 4E.

  The right end portion of the left sliding door 7 and the left end portion of the right sliding door 7 are both door end portions. When the sliding doors 7 and 7 are in the closed state, as described above, these door end ends. Partly overlaps the front and back. The range in which the door bottom ends of the sliding doors 7 and 7 partially overlap in the front-rear direction (portions indicated by hatching in FIG. 1) is formed in the opening 4 when the sliding doors 7 and 7 are opened. The effective opening 4E is positioned so as not to overlap with the front side (the corridor C side), and the column member 10 is erected on the floor surface of the corridor C included in this position so as not to tilt.

  The column member 10 is, for example, a columnar member having a height corresponding to the height position of a general handrail, and as shown in FIG. A plate-like support portion 10a is formed by cutting out symmetrically, and a shaft hole (not shown) penetrating in the front-rear direction is formed in the support portion 10a.

  A left handrail 12 corresponding to the left sliding door 7 is provided on the front side (corridor C side) of the left sliding door 7 in the closed state, and the front side (corridor C side) of the right sliding door 7 is also closed. The right handrail 12 corresponding to the right sliding door 7 is respectively arranged. Each handrail 12 has a door-end side handrail portion 12a located on the door-end side when the corresponding sliding door 7 is in a closed state, and a door-end side handrail portion 12b located on the door-end side, Both the right end portion of the door tail side handrail portion 12a of the left handrail 12 and the left end portion of the door tail side handrail portion 12a of the right handrail 12 are rotatably supported by the upper end portion of the column member 10. ing. Specifically, as shown in FIG. 3, brackets 13, 13 are provided at the right end portion of the door tail side handrail portion 12 a of the left handrail 12 and the left end portion of the door tail side handrail portion 12 a of the right handrail 12, respectively. Is integrally attached and fixed. For example, the bracket 13 of the left handrail 12 has a notched stepped portion 13a by notching the rear side in a stepped shape, and the bracket 13 of the right handrail 12 has a stepped front side. A notch step portion 13a is formed by cutting, and each notch step portion 13a is formed with an axial hole (not shown) in the front-rear direction, and the notch step portions 13a and 13a are respectively connected to the pillars. The support portion 10a of the member 10 is superposed so as to sandwich the support portion 10a from the front and the back, and the front and rear horizontal rotation shafts 15 are formed in the shaft holes of the notched step portions 13a and 13a and the shaft holes of the support portion 10a of the column member 10. By inserting Door trailing side handrail portion 12a of the handrail 12 is rotatably supported in a vertical plane through the rotation axis 15 to the pillar member 10.

  Also, as shown in FIG. 4, brackets 18, respectively are provided on the left end portion of the doorside handrail portion 12 b of the left handrail 12 and the right end portion of the doorside handrail portion 12 b of the right handrail 12. 18 is integrally attached and fixed (in FIG. 4, only the door-end side handrail portion 12b of the right handrail 12 is illustrated). A bearing portion 20 is embedded and attached to the rear surface of each bracket 18. In addition, on the front surface of the sliding door 7, the support shaft 19 is mounted and fixed at substantially the same height as the upper end of the column member 10 so as to protrude forward, and the front end portion of the support shaft 19 is the above-mentioned door-side handrail. The bearing portion 20 of the portion 12b is connected and supported via a bearing 21 so as to be rotatable and in a retaining state.

  In each handrail 12, the door front end portion of the door-side handrail portion 12a and the door-end end portion of the door-end side handrail portion 12b are rotatably connected by a connecting portion 14. Specifically, as shown in the case of the left handrail 12 in FIG. 6, the connecting member 12 c is provided between the door front end portion of the door tail side handrail portion 12 a and the door bottom end portion of the door end side handrail portion 12 b. Both ends of the connecting member 12c are pivot shafts 17 having front and rear horizontal axes at the front end of the door-side handrail 12a and the door-end of the door-end handrail 12b, respectively. , 17 so that the handrail 12 can be bent upward in the vertical plane along the sliding door 7 at the connecting portion 14 between the two handrail portions 12a, 12b.

  And in the closed state of each said sliding door 7, the connection part 14 of the door butt side handrail part 12a and the door tip side handrail part 12b of each handrail 12 corresponding to this sliding door 7 is on the lower end of a movement range. By being positioned, each handrail 12 is positioned at a horizontal position (usage position) extending linearly or substantially horizontally along the floor surface, while each handrail is opened during the opening operation in which the sliding door 7 is opened from the closed state. When the connecting portion 14 of the 12 door butt side handrail portion 12a and the door end side handrail portion 12b moves upward from the lower end of the moving range, the handrail 12 and the effective opening 4E of the opening portion 4 in the sliding door D It is bent so as not to overlap, and is positioned at a folding position (non-use position).

  Further, as shown in FIG. 5, when the handrail 12 is in a horizontal position extending linearly along the floor surface with the corresponding sliding door 7 closed, the handrail 12 can be used even if it is gripped by the handrail 12 and used. A lock mechanism 16 that locks and holds the slide 12 so as not to be bent downward at the connecting portion 14 is provided. For example, the locking mechanism 16 is connected to the upper end of the door tip of the door-side handrail 12a (may be the door-end of the door-end handrail 12b) in the connecting portion 14 of each handrail 12. A plate-like guard portion 16a that protrudes integrally is provided, and the guard portion 16a is provided at the horizontal position of each handrail 12 at the edge of the door-end of the door-end side handrail portion 12b (of the door-end side handrail portion 12a). It extends horizontally so as to overlap with the door bottom end of the door-end side handrail portion 12b toward the upper side of the door-end side handrail portion 12b, and each handrail 12 is positioned in a horizontal position. Even if the connecting portion 14 is bent downward in the state, the tip portion of the guard portion 16a hits the door bottom end portion of the lower door-end side handrail portion 12b on which the guard portion 16a overlaps. The connecting portion 14 of the slide 12 is restricted from being bent. As indicated by phantom lines in FIG. 5, when the connecting portion 14 of the handrail 12 bends upward, the guard portion 16a is separated from the door edge end portion of the door-end side handrail portion 12b. The connecting portion 14 bends without restriction.

  In addition, although not shown in the drawings, the locking mechanism is an engagement made of, for example, an arc groove having an angle of 180 ° around the pivot shaft 17 in one of the handrail portions 12a, 12b or the connecting portion 14, for example. On the other hand, an engagement pin that engages with the engagement groove is provided on the other side of the handrail portions 12a and 12b or the connecting portion 14, and the engagement pin moves in the engagement groove as the handrail 12 is bent. When the handrail 12 is slid and moved to the horizontal position and the bent position, the engaging pins are positioned at both ends of the engaging groove, and one of the engaging pins in the engaging groove It is possible to adopt a structure in which the handrail 12 is not bent downward from the horizontal position by stopping and holding at the end of the horizontal axis. In addition, a lock mechanism having another structure can be adopted.

  The front and rear surfaces of the sliding doors 7 are each provided with a handle (not shown), but the handle provided on the front is from the handrail 12 in a horizontal position so as not to interfere with the moving handrail 12. Is also arranged on the lower side.

  Next, operation | movement of the sliding door D with a handrail of the said embodiment is demonstrated using FIGS. In FIG. 6, the brackets 13 and 18 are omitted. Moreover, in FIG.7 and FIG.8, the pillar member 10, the handrail 12, etc. are shown typically.

  As shown in FIG. 7 (a), when both the left and right sliding doors 7 and 7 are in the closed state, the door bottom side handrail portion 12a (right side) of the left handrail 12 located on the front side of the left sliding door 7 is shown. Part) is supported at the upper end of the column member 10 at the door butt end, and the door side handrail 12b (left side) is supported at the front of the left sliding door 7 at the door tip, and these two handrails 12a, 12b. Are connected by the connecting member 12c of the connecting portion 14, and the left handrail 12 is connected to the column member 10 and the front surface of the left sliding door 7 (the front end portion of the sliding door 7 as shown in FIG. 6A). ) And a horizontal position (use position) extending linearly or substantially horizontally along the floor surface. On the other hand, also in the right handrail 12 located on the front side of the right sliding door 7, the door bottom side handrail portion 12a (left side portion) is supported by the upper end portion of the column member 10, and the door end side handrail portion 12b (right side) Part) is supported on the front surface of the right sliding door 7, and the two handrail portions 12a and 12b are connected by the connecting member 12c of the connecting portion 14, and the right handrail 12 is connected to the column member 10 and the front surface of the right sliding door 7. It is positioned at a horizontal position (use position) extending linearly or substantially horizontally along the floor surface (the front end portion of the sliding door 7) (see FIG. 6A). That is, the left and right handrails 12 and 12 are in a state of extending horizontally in a straight line along the floor surface in the corridor C on the front side of the sliding doors 7 and 7. The two handrails 12 and 12 are used when one or both of them are grasped by the user.

  From such a state, when the user opens the left sliding door 7 and moves it to the right side, first, as shown in FIG. 7B, the left handrail 12 is pushed to the right side by the opening operation force. As shown in FIG. 6B, the door-side handrail 12a is supported by the column member 10 due to the reaction force from the upper end of the column member 10 on which the door-side handrail 12a is supported. The door-side handrail portion 12b rotates counterclockwise in the figure centering on the support shaft 19 supported by the sliding door 7 so as to rotate clockwise in the figure around the rotating shaft 15 Each of the handrails 12a and 12b jumps upward so as to move, and the connecting portion 14 of the two handrail portions 12a and 12b moves upward to bend the left handrail 12 upward.

  Then, when the left sliding door 7 is moved to the right end and most of the sliding door 7 overlaps the right sliding door 7, the connecting portion 14 of the left handrail 12 is folded (not used) as shown in FIG. The left handrail 12 is completely bent so that the two handrail portions 12a and 12b extend substantially in the vertical direction (see FIG. 6C).

  The opening operation of the left sliding door 7 as described above increases the effective opening 4E in the opening 4 of the sliding door D. In response, the left handrail 12 also moves from the horizontal position to the folding position. It does not overlap the effective opening 4E of the opening 4 and does not hinder the user who opens the left sliding door 7 and passes through the effective opening 4E.

  When the left sliding door 7 is closed from the open state, the left handrail 12 moves in the opposite direction to the opening operation in accordance with the closing operation of the left sliding door 7 and changes from the bent state to the linear state. Return to position.

  On the other hand, as shown in FIG. 8A (same as FIG. 7A), when the user opens the right sliding door 7 and moves it to the left in the closed state of both sliding doors 7, 7, First, as shown in FIG. 8 (b), the right handrail 12 is pushed to the left by the opening operation force, and the reaction force from the upper end portion of the column member 10 on which the door tail side handrail portion 12a is supported. Thus, the door-side handrail portion 12a rotates in the counterclockwise direction in the figure around the rotation shaft 15 supported by the column member 10, and the door-end side handrail portion 12b As shown in the figure, the springs are lifted up so as to rotate in the clockwise direction in the drawing, the connecting portions 14 of the two handrail portions 12a and 12b are moved upward, and the right handrail 12 is bent upward.

  Then, when the right sliding door 7 is moved to the left end and most of the sliding door 7 overlaps the left sliding door 7, the connecting portion 14 of the right handrail 12 is folded (not used) as shown in FIG. The right handrail 12 is completely bent so that the two handrail portions 12a and 12b extend substantially in the vertical direction.

  The opening operation of the right sliding door 7 as described above increases the effective opening 4E in the opening 4 of the sliding door D, but the right handrail 12 moves from the horizontal position to the bending position accordingly, so that the handrail 12 is It does not overlap the effective opening 4E of the opening 4 and does not hinder the user passing through the effective opening 4E.

  When the right sliding door 7 is closed from the open state, the right handrail 12 moves in the opposite direction to the above opening operation in accordance with the closing operation of the right sliding door 7 and changes from the bent state to the linear state, and is horizontal from the bent position. Return to position.

  Therefore, in this embodiment, the door bottom end portion of the door bottom side handrail portion 12a serving as the rotation center of each of the left and right handrails 12, 12 is supported by the column member 10 on the floor surface of the hallway C, Since the door front end portion of the door-end side handrail portion 12b is rotatably supported by the door front end portion of the sliding door 7, when each sliding door 7 is in a closed state and each handrail 12 is linear. When the user grips each handrail 12, the load applied to the handrail 12 can be mainly received by the column member 10. As a result, compared with the case where the same load is received by the sliding door 7, the load can be received stably, and the stability and reliability of the handrail 12 can be improved.

  Further, as each sliding door 7 opens, the corresponding connecting portion 14 of each handrail 12 moves upward and the handrail 12 is bent, so that the appearance of the handrail 12 is improved.

  As shown in FIG. 9, when each sliding door 7 is in the fully closed position and each handrail 12 is in the horizontal position, a gap is left between the handrail portions 12a and 12b of the handrail 12. In the connecting member 12c of the connecting portion 14 of each handrail 12, the connecting position by the pivot shaft 17 to the door bottom end portion of the door end side handrail portion 12b is connected to the door front end portion of the door bottom side handrail portion 12a. Alternatively, the distance d may be shifted to the upper side (upper side in FIG. 9) than the connection position by the pivot shaft 17. In this way, when the handrail 12 in the horizontal position is pushed from both ends in the length direction by the opening operation of the sliding door 7, the connecting position of the connecting member 12c that connects the two handrail portions 12a and 12b (the pivot shaft 17, 17), as shown by an arrow in FIG. 9, the door bottom end of the door tip side handrail portion 12b causes the door bottom end portion of the connection tip 12c to face upward with respect to the door front end portion of the door bottom side handrail portion 12a. It can be rotated clockwise in the figure to move. As a result, the connecting portion 14 of the two handrail portions 12a and 12b moves upward to cause the handrail 12 to bend at the connecting portion 14, and the handrail 12 can be bent smoothly.

(Embodiment 2)
FIG. 10 shows Embodiment 2 of the present invention (in the following embodiments, the same parts as those in FIGS. 1 to 9 are denoted by the same reference numerals and detailed description thereof is omitted), and the sliding door with a handrail is shown. The handrail 12 of D is made to continue to the fixed handrail around the opening 4 of the door frame 1.

  In this embodiment, on both the left and right sides around the opening 4 of the sliding door D with a handrail, the fixed handrails 25 and 25 extend linearly along the floor surface on the wall surface of the hallway C communicating with the opening 4. It is fixed. The height positions of the left and right fixed handrails 25, 25 are the same as the handrails 12, 12 on the left and right sides of the sliding door D with a handrail. Each handrail 12 extends linearly in the closed state of the sliding door 7 and is in a horizontal position. The handrail 12 has an extension 12d extending from the door-side handrail 12b to the outside of the opening 4 on the door-side hand. It has integrally with the sliding part 12b, and is substantially connected to the fixed handrail 25 through its extension part 12d. Other configurations are the same as those of the first embodiment.

  In this embodiment, FIG.11 and FIG.12 shows operation | movement of the sliding door D with a handrail. Since this operation is the same as that of the first embodiment, detailed description is omitted, but FIG. 11 shows the movement of the left handrail 12 when the left sliding door 7 is opened and closed, and FIG. 12 shows the right sliding door 7. The movement of the right handrail 12 when the door is opened and closed is shown. Specifically, FIG. 11A is FIG. 7A of the first embodiment, FIG. 11B is FIG. 7B of the first embodiment, and FIG. 11C is the first embodiment. FIG. 7C corresponds to FIG. FIG. 12A shows FIG. 8A of the first embodiment, FIG. 12B shows FIG. 8B of the first embodiment, and FIG. 12C shows FIG. 8 of the first embodiment. Each corresponds to (c).

  Therefore, this embodiment can provide the same effects as those of the first embodiment. And as shown in FIG. 10, when both handrails 12 and 12 extend linearly along the floor surface with the sliding doors 7 and 7 on the left and right sides closed, they extend to the outside of the opening 4. Since the extension parts 12d and 12d are substantially connected to the fixed handrails 25 and 25 in the corridor C around the opening 4, the handrail 12 on the sliding door 7 side when each sliding door 7 is in the closed state. And the fixed handrail 25 in the corridor C around the opening 4 can be made continuous, and usability can be improved by a series of handrails without interruption.

  Further, even if the extension 12d of the handrail 12 extends to the outside of the opening 4, when the sliding door 7 is opened, FIGS. 11B, 11C, 12B, and 12 (FIG. 12). As shown in c), since the extension 12d is raised, the tip of the extension 12d only partially overlaps the effective opening 4E of the opening 4, and the user passing through the effective opening 4E It won't get in the way.

  The fixed handrail 25 may be fixedly supported not on the wall surface of the corridor C but on the floor surface.

(Embodiment 3)
13 and 14 show the third embodiment, and the handrail 12 is bent by guiding the pivot shaft 17 connecting the connecting member 12c of the handrail 12 and the end of the door-end side handrail portion 12b upward. It was designed to generate a trigger.

  That is, in this embodiment, as in the first embodiment, the connection member 12c is interposed between the door bottom side handrail portion 12a and the door end side handrail portion 12b of the handrail 12, and both end portions of the connection member 12c are provided. Are connected to the door-end side handrail portion 12a and the door-end side handrail portion 12b by pivot shafts 17 and 17 each having an axial center in the front-rear horizontal direction, and the two handrail portions 12a and 12b are connected to each other by a connecting member 12c. They are pivotably connected to each other.

  Further, unlike the first embodiment, as shown in FIG. 13 (FIG. 13 shows the left handrail 12), of the pivot shafts 17 and 17, the connecting member 12c is connected to the door of the doorside handrail portion 12b. A pivot shaft 17 (on the left side in FIG. 13) connected to the bottom end portion has an extension portion 17a extending rearward. On the other hand, on the front surface of the sliding door 7, a guide groove forming portion 24 having a guide groove 23 on the front surface that fits and guides the extension portion 17 a of the pivot shaft 17 is integrally provided. The guide groove 23 is inclined while curving so as to be directed upward toward the door butt side in a front view as viewed from the front side. The lower end of the groove length direction is closed, but the upper end is an extension of the pivot shaft 17. The part 17a is opened from the guide groove 23 so as to be able to enter and exit. When each sliding door 7 is in the fully closed state, as shown in FIG. 13A, the extension portion 17a of the pivot shaft 17 that is a connecting portion with the door-end side handrail portion 12b of the connecting member 12c is provided. When the sliding door 7 moves from the fully closed state toward the fully open position, the extension portion of the pivot shaft 17 between the connecting member 12c and the door-end side handrail portion 12b is located at the lower end of the guide groove 23. 17a is guided upward by the guide groove 23, and the door-end side handrail portion 12b is rotated. 13B shows a state in which the extension 17a of the pivot shaft 17 is slightly moved from the lower end of the guide groove 23, and the handrail 12 starts to bend. FIG. 13C shows the extension 17a of the pivot shaft 17 being guided. The state is shown in which the handrail 12 is further bent after coming out of the upper end of the groove 23. Other configurations are the same as those of the first embodiment.

  Therefore, also in this embodiment, the same effect as that of the first embodiment can be obtained. Further, the operation of the handrail 12 will be described. When the corresponding sliding door 7 is in the fully closed position, the handrail portions 12a and 12b of the handrail 12 are connected to each other as shown in FIG. An extension portion 17 a of the pivot shaft 17, which is a connection portion between the connecting member 12 c and the door end side handrail portion 12 b, is positioned at the lower end of the guide groove 23 of the guide groove forming portion 24. For example, when the left sliding door 7 moves in the opening direction from the fully closed position toward the fully opened position, the pivot shaft 17 that is a connecting portion of the connecting member 12c and the door-end side handrail portion 12b accompanies the movement of the sliding door 7. The extension portion 17 a moves in the guide groove 23 of the guide groove forming portion 24. Since the guide groove 23 is inclined so as to be directed upward toward the door bottom in a front view, the pivot shaft 17 is pushed upward by the guide groove 23 and is connected to the pivot shaft 17. The door-end side handrail portion 12b is rotated so that the door bottom end portion on the pivot shaft 17 side is directed upward, and this connection causes the connecting portion 14 of the both handrail portions 12a and 12b to move upward. After the extension portion 17a of the pivot shaft 17 has come out of the upper end portion of the guide groove 23, the door-end side handrail portion 12b rotates counterclockwise as shown in FIG. 14B. The handrail 12 is bent upward, and the handrail 12 is completely bent when the sliding door 7 is fully opened as shown in FIG. Thereby, the handrail 12 can be smoothly bent similarly to the structure shown in FIG.

  Further, when the sliding door 7 is closed toward the fully closed position, the handrail 12 performs an operation reverse to the opening operation.

(Embodiment 4)
FIG. 15 shows Embodiment 4 in which the structure of the connecting portion 14 of the handrail 12 is changed.

  That is, in this embodiment, the door bottom side handrail portion 12a and the door end side handrail portion 12b of each handrail 12 are not coupled via the connection member 12c as in the above embodiments, and the hinge The members 27 are directly connected. The hinge member 27 has the same structure as that of the hinge, and is fixedly attached to the lower surface of the door front end portion of the door-side handrail portion 12a and the lower surface of the door-end end portion of the door-end side handrail portion 12b. A pair of attachment portions 27a and 27a are provided, and both attachment portions 27a and 27a are connected to each other by a shaft portion 27b in the horizontal front-rear direction so as to be swingable.

  And in the closed state of the corresponding sliding door 7, as shown to Fig.15 (a), the door-end side handrail part 12a and the door-end side handrail part 12b faced each hinge member 27 side edge part. The handrails 12 extend linearly along the floor surface of the hallway C in a straight line state. The end portions of the two handrail portions 12a and 12b are abutted with each other, so that the handrail 12 can be prevented from being bent downward at the connecting portion 14 even if the handrail 12 is gripped and used.

  When the sliding door 7 is opened, as shown in FIGS. 15 (b) and 15 (c), end portions on the hinge member 27 side of the door-side handrail portion 12a and the door-end side handrail portion 12b, respectively. That is, the connecting portion 14 of the handrail 12 moves upward.

  In this embodiment, the locking mechanism 16 shown in the first embodiment is not provided, and the end portions of the door-end side handrail portion 12a and the door-end side handrail portion 12b protrude from each other at the horizontal position of the handrail 12. By being combined, the connecting portion 14 of the handrail 12 is prevented from being bent downward. Other configurations are the same as those of the first embodiment. Therefore, this embodiment can achieve the same effects as those of the first embodiment.

(Embodiment 5)
FIG. 16 shows a fifth embodiment in which a fixed handrail is attached to the door end side of the sliding door 7 with respect to the handrail 12.

  That is, in this embodiment, the door of the handrail 12 when the fixed handrail 28 is in the horizontal position (use position) at the door end side of the door front end portion of the sliding door 7 in front of the door end side handrail portion 12b. It is attached and fixed so as to be positioned in the same straight line as the front handrail portion 12b, and one end portion of the fixed handrail 28 is fixed to the support shaft 19 of the doorside handrail portion 12b so as not to rotate, and the other end portion. Is fixed to the front surface of the sliding door 7 via a support shaft 29 parallel to the support shaft 19. The support structure for the support shaft 19 at one end of the fixed handrail 28 is the same as the support structure for the pillar member 10 and the door-side handrail 12a described above, and is fixed by forming a notch stepped portion. The handrail 28 and the door-end side handrail portion 12b are supported so as to be positioned in the same straight line. Other configurations are the same as those of the first embodiment. Therefore, this embodiment can achieve the same effects as those of the first embodiment.

(Other embodiments)
When the sliding door 7 is in the closed state and the handrail 12 is in the horizontal position (use position), when the user grips the handrail 12 and a downward load is applied, the handrail 12 is moved to the horizontal position. It is also possible to provide a mechanism that is locked and held so that the sliding door 7 is not opened.

  In this way, when the user grasps the handrail 12 and uses the handrail 12, the sliding door 7 is locked in the closed state. Inadvertent opening from the room R side that is not present can be prevented.

  As shown in FIG. 17, the door bottom side handrail portion 12 a of each handrail 12 is not fixed to the bracket 13, but as shown in FIG. While the slide portion 12e having a smaller diameter than the portion is formed, a bottomed hole portion 13b is formed in the bracket 13, and the slide portion 12e of the handrail 12 is slidably fitted into the hole portion 13b. You can also. In this way, when the sliding door 7 is opened and the handrail 12 is pushed in the direction toward the door end side, the handrail 12 is once inserted into the hole 13b of the bracket 13 in the initial stage. Therefore, the folding of the handrail 12 starts with a delay with respect to the opening operation of the sliding door 7, and a delay mechanism for bending the handrail 12 with a delay is obtained. Characteristic of the movement.

  Although the said embodiment is an example of the sliding door D of the sliding door structure of a sliding door type, this invention is applicable also to the sliding door of another type and a housing structure, and the same effect as said each embodiment Can be played. The case where it applies to those sliding doors is shown in FIGS.

  FIG. 18 shows a sliding door D with a handrail that fits in one side. In this sliding door D, a stand 30 is erected on the rear side between the left and right vertical frames 2, 2 of the door frame 1. An opening 4 is formed between the vertical 30 and, for example, the right vertical frame 2 that is one vertical frame, and a wall 31 is provided on the rear side between the vertical 30 and the left vertical frame 2 that is the other vertical frame. Is attached to the front side of the wall member 31 so that one sliding door 7 in an open state is accommodated, and the sliding door D is, for example, a right opening. A column member 10 is erected in the corridor C on the front side of the vertical 30, and a door-end side handrail portion 12 a of the handrail 12 is rotatably supported on an upper end portion of the column member 10, and a door-end-side handrail portion 12 b. (Right side part) is rotatably supported by the door front-end | tip part of the sliding door 7, and both the handrail parts 12a and 12b are connected by the connection part 14 so that bending is possible. A fixed handrail 25 is bridged on the front side between the column member 10 and the column on the outside (left adjacent) of the left vertical frame 2, and the handrail 12 is in a horizontal position (use position). It is designed to continue in a straight line. In addition, when the holding force about the fixing tool (screw etc.) of the vertical frame 2 is strong, you may bridge the fixed handrail 25 between this vertical frame 2 and the column member 10. FIG.

  FIG. 19 shows a sliding door D with a handrail that is retracted, and a pair of front and rear vertices 30, 30 are erected between the left and right vertical frames 2, 2 of the door frame 1. An opening 4 is formed between the vertical 30 and 30 and one vertical frame, for example, the right vertical frame 2, and both front and rear sides between the vertical 30 and 30 and the left vertical frame 2 that is the other vertical frame. Wall materials 31 and 31 are pasted to each other, and a single sliding door 7 is opened in a door pocket between the wall materials 31 and 31, and the sliding door D is, for example, right-open. A column member 10 is erected in the corridor C on the front side of the vertical 30, and a door-end side handrail portion 12 a of the handrail 12 is rotatably supported on the upper end portion of the column member 10. The handrail part 12b (right side part) is rotatably supported by the door front-end | tip part of the sliding door 7, and both handrail parts 12a and 12b are connected by the connection part 14 so that bending is possible. Note that the column member 10 can be erected not in the front side of the stand 30 but in the corridor C on the right side of the front side stand 30 (in the opening 4).

  FIG. 20 shows a sliding door D with a handrail for draw-in, and in the sliding door D with a handrail shown in FIG. 18 above, the door end side of the sliding door 7 is developed symmetrically on a plane of symmetry. . That is, the left and right sliding doors 7 and 7 are arranged in the door frame 1, and the left and right column members 10 and 10 are erected in the corridor C on the front side of the left and right side walls 30 and 30, respectively. The left and right handrails 12 and 12 are rotatably supported by the pillar members 10 and 10, respectively, and the door-end side handrail portions 12b and 12b of the two handrails 12 and 12 are respectively left and right. The sliding doors 7 and 7 are rotatably supported by the door front end portions, and the two handrail portions 12a and 12b are connected by a connecting portion 14 so as to be bent.

  FIG. 21 shows an outset type sliding door D with a handrail. This sliding door D is not an inset type in which the sliding door 7 is arranged in the door frame 1 as in the structure shown in FIG. 18, but the sliding door 7 is arranged on the front side (the corridor C side) outside the door frame 1. This sliding door 7 is suspended by an upper suspension rail (not shown) disposed on the front side of the upper frame 3 and moves in the left-right direction, and the opening 4 in the door frame 1 is moved to the front side. The sliding door D is opened to the right, for example. For example, a column member 10 is erected on the floor surface of the corridor C on the front side of the left vertical frame 2 located on the door bottom side of the sliding door 7, and the door bottom side handrail portion of the handrail 12 is formed on the upper end portion of the column member 10. 12a is rotatably supported, the door-end side handrail portion 12b (right side portion) of the handrail 12 is rotatably supported by the door front end portion of the sliding door 7, and both handrail portions 12a and 12b are connected to the connecting portion 14. It is connected so that it can be bent. In addition, the lower end part of this sliding door 7 is also supported by engagement with the guide groove on the lower surface and the floor mounting guide pin on the floor surface of the corridor C.

  FIG. 22 shows an outset type sliding door D with sliding doors, and in the sliding door D with a sliding door with single sliding shown in FIG. 21 above, the door end side of the sliding door 7 is developed symmetrically about the plane of symmetry. It is a thing. That is, the left and right sliding doors 7 and 7 are arranged on the front side outside the door frame 1, and the two left and right column members 10 and 10 are erected in the corridor C on the front side of the left and right vertical frames 2 and 2, respectively. The left and right handrails 12 and 12 are respectively supported by the left and right pillar members 10 and 10 so as to be pivotable. The door-end side handrail portions 12b and 12b of the two handrails 12 and 12 are The left and right sliding doors 7 and 7 are rotatably supported at the door front ends, and the two handrail portions 12a and 12b are connected to each other at the connecting portion 14 so as to be bent. Moreover, the fixed handrail 25 is supported by the column member 10 similarly to the sliding door D shown in FIG.

  Further, in each of the above embodiments, the handrail 12 is bent by moving the connecting portion 14 upward, but can be bent by moving the connecting portion 14 downward. In that case, it is necessary to provide the handle of the sliding door 7 above the handrail 12 so as not to interfere with the moving handrail 12.

  In the present invention, when the handrail attached to the sliding door is linear in the closed state of the sliding door, the load applied to the handrail is mainly received by the pillar member, and the stability and reliability of the handrail are improved. Can be very useful.

D Sliding door with handrail C Corridor R Room 1 Door frame 4 Opening 4E Effective opening 7 Sliding door 10 Column member 12 Handrail 12a Door bottom side handrail 12b Door tip side handrail 12c Connection member 12d Extension 14 Connection 16 Locking mechanism 20 Bearing portion 25 Fixed handrail 27 Hinge member

Claims (6)

A sliding door that opens and closes the opening of the building,
A pillar member provided upright on the floor surface at a position that does not overlap with the effective opening of the opening when the sliding door is opened;
It has a door butt side handrail portion located on the door butt side of the sliding door in the closed state and a door tip side handrail portion located on the door tip side, and one end of the door butt side handrail portion is the column member One end of the door-end side handrail portion is rotatably supported by the door tip portion of the sliding door via the rotation shaft, and the door bottom side and the door tip The other side of the handrail part is rotatably connected, and includes a handrail that can be bent upward or downward at the connection part between the handrail parts.
While the handrail extends linearly along the floor surface in the closed state of the sliding door, the connecting portion moves upward or downward so that it does not overlap the effective opening of the opening when the sliding door opens. Sliding door with a handrail, characterized in that it bends into two. In claim 1,
A connection guide structure for bending the handrail by guiding the connection portion of the handrail to move upward or downward when an opening operation force is applied to the handrail by opening the sliding door in the closed state. A sliding door with a handrail characterized by being provided. In claim 1,
The door-rail side handrail part of the handrail and the door-end side handrail part are coupled via a connecting member,
When the handrail is in a straight line state with the sliding door closed, the connection position of the connecting member to the door-end side handrail part is either above or below the connection position to the door-end side handrail part. Sliding door with a handrail, characterized by shifting. In any one of Claims 1-3,
Around the opening, a fixed handrail extending linearly along the floor surface is provided,
When the handrail extends linearly in the closed state of the sliding door, the handrail has an extension extending from the door tip to the outside of the opening and is connected to the fixed handrail via the extension. This is a sliding door with a handrail. In claim 4,
The fixed handrail is fixed to a wall surface or a floor surface of a corridor communicating with the opening, and the sliding door with a handrail is characterized in that it is fixed.   A building in which the sliding door with a handrail according to any one of claims 1 to 5 is constructed.

Images