JP5125749B2 - Movable handrail - Google Patents

Description

  The present invention relates to a movable handrail installed in a site of a building such as a general house in order to assist walking movement of an elderly person or a walking handicapped person.

  Handrails are installed in the grounds of buildings such as ordinary houses (for example, the part between the gate and the entrance) or in the building as a means to support the body when elderly people or people with walking disabilities walk and move Sometimes. A conventional handrail is mainly provided with a bar-shaped handrail bar that can be grasped by a pedestrian by hand, and holding means such as a support for maintaining the bar in a substantially horizontal state. However, when the user wants to move in a direction crossing the handrail bar at the place where the handrail is installed, the handrail bar may interfere with passage. In view of this, a movable handrail has been proposed that has a handrail bar that can rotate in a direction to stand up with one end as a fulcrum (see, for example, Patent Document 1).

  In a normal state, the movable handrail described in Patent Document 1 maintains the posture in which the rotating end portion of the rotating handrail bar is connected and supported by the joint and crosses the entrance / exit of the building, etc. When passing, the rotating handrail bar lifts the rotating end of the rotating handrail bar away from the joint and pivots upward about the supporting end so that the rotating handrail bar does not hinder the passage. Standing up.

JP 2005-68811 A

  In the case of the movable handrail described in Patent Document 1, a healthy person can relatively easily rotate and stand up the rotating handrail bar. However, when a wheelchair user tries to perform the same operation, he / she sits on the wheelchair. Since the body has to be stretched greatly from this state, the physical burden is large and inconvenient. In addition, when the user adds weight to the rotating handrail bar while the rotating handrail bar is maintained in the horizontal posture, the rotating handrail bar is prevented from rotating unexpectedly downward. The joint connected to the rotating end of the handrail bar has a structure that supports the rotating end from below. Therefore, the rotating end portion of the rotating handrail bar cannot be detached from the joint and rotated downward.

  The problem to be solved by the present invention is that normally the rotating handrail bar can be stably held in a substantially horizontal posture, and both healthy and wheelchair users can easily rotate the rotating handrail bar. It is an object of the present invention to provide a movable handrail capable of shifting to a state in which the handrail can be passed.

The movable handrail of the present invention is characterized by the following configuration. First, the first invention has a bar-shaped rotating handrail bar that can be gripped by a user. The rotating handrail bar can be rotated in the vertical direction around one end and the other end is supported. In a movable handrail that maintains a substantially horizontal posture,
A rotary joint provided at one end of the rotary handrail bar, a first support joint that pivotally supports the rotary joint,
A latching joint provided at the other end of the rotating handrail bar; a second support joint that is detachably connected to the latching joint and is supported from below; and the rotating handrail bar is maintained in a substantially horizontal posture; With
The pivot joint is pivotally supported with respect to the first support joint so as to be pivotable in the vertical direction and the horizontal direction, so that the latching joint separated from the second support joint is moved to the second support joint side. The rotating handrail bar can be rotated downward from the second support joint.

  With such a configuration, the rotating handrail bar is rotated horizontally until the latching joint reaches a position where it does not interfere with the second support joint, and the latching joint is moved to the side of the second support joint from there. And the rotating handrail bar can be rotated downward relative to the second support joint. Therefore, even a wheelchair user or the like can easily pass without stretching his / her body and rotating the rotating handrail bar upward to stand up.

  That is, in a state where the rotating handrail bar is horizontal, when the user adds weight to the rotating handrail bar, the retaining joint is the second support joint so that the rotating handrail bar does not rotate unexpectedly downward. It is supported from below by being connected to the rotating handrail, and the horizontal posture of the rotating handrail bar is reliably maintained, and when the user passes, the rotating handrail bar can be easily rotated downward from the second support joint. .

  Next, according to a second aspect of the present invention, there is provided an insertion hole that can be inclined in a horizontal direction in a state where the rotation shaft is held in one of the first support joint and the rotation joint and the rotation shaft is inserted in the other. And the pivot joint is pivotable in the vertical direction around the pivot axis, and is pivotable in the horizontal direction by tilting the pivot shaft in the insertion hole. And

  In the first aspect of the invention, in order to rotate the rotating handrail bar downward from the second support joint, the rotation joint can be rotated in two directions, the vertical direction and the horizontal direction, with respect to the first support joint. Need to be configured. Therefore, in the second aspect of the present invention, the rotation shaft is inserted into an insertion hole that can be inclined in the horizontal direction with the rotation shaft inserted, whereby the rotation in the vertical direction centered on the rotation shaft can be inserted. It is configured to be able to rotate in a total of two directions including horizontal rotation in which the rotation axis is inclined with respect to the hole.

  Here, the range in which the rotation axis can be inclined with respect to the insertion hole is limited by the horizontal inner diameters of the open ends on both the left and right sides of the insertion hole. However, in the second invention, it is only necessary that the rotating handrail bar can be rotated in the horizontal direction so that the latching joint does not interfere with the second support joint and the latching joint can pass the side of the second support joint. Therefore, if the rotating handrail bar can be rotated in the horizontal direction by inclining the rotating shaft with respect to the insertion hole, it can be rotated in a wide range around the rotating shaft in the vertical direction.

  Next, the third invention is characterized in that the insertion hole is formed in a long hole shape whose diameter is increased in a direction from the first support joint toward the second support joint.

  With such a configuration, the rotation shaft is inserted into a long hole-shaped insertion hole whose diameter is increased in the direction from the first support joint to the second support joint, thereby rotating by rotation around the rotation shaft. The handrail bar can be turned in the vertical direction, and the turning handrail bar can be turned in the horizontal direction by turning the turning shaft with respect to the insertion hole in the insertion hole. .

Next, according to a fourth aspect of the present invention, a pair of holding pieces protrudes from one of the first support joint and the rotating joint that holds the rotating shaft with a gap therebetween, and the other includes the gap. An insertion piece having a smaller width and inserted into the gap is formed to protrude,
Both ends of the rotating shaft are held by the pair of holding pieces across the gap, and the insertion hole is formed in the insertion piece.

  In the fourth aspect of the invention, the width of the insertion piece is smaller than the width of the gap so that the insertion piece can be inclined in the gap. Accordingly, the rotation shaft is configured to be inclined with respect to the insertion hole formed in the insertion piece, and the rotation joint can be rotated in the horizontal direction with respect to the first support joint. Moreover, since the both sides of the insertion piece in which the insertion hole is formed are covered with the clamping piece, it is possible to prevent a situation where the user inserts a finger or the like between the rotation shaft and the insertion hole. .

  Next, a fifth invention is characterized in that an inclination regulating means for regulating an inclination of the rotating shaft with respect to the insertion hole is provided in a state where the latching joint and the second support joint are connected. To do.

  If the width of the insertion piece is smaller than the width of the gap between the pair of sandwiching pieces, when a force is applied to the rotating handrail bar, the rotating shaft is inclined with respect to the insertion hole, and the rotating handrail bar is not stable. This results in a worse feeling of use. Accordingly, in the fifth aspect of the present invention, in the state where the latching joint and the second support joint are connected and the movable handrail is used, the inclination of the rotation shaft with respect to the insertion hole is restricted, thereby allowing the rotation of the rotation handrail bar. Can prevent sticking.

  Next, according to a sixth aspect of the present invention, when the rotation handrail bar is moved in the direction away from the first support joint along the axial direction of the inclination regulating means, the inclination of the rotation shaft with respect to the insertion hole is reduced. A release mechanism for releasing the restriction is provided.

  With such a configuration, the user releases the restriction on the inclination of the rotation shaft with respect to the insertion hole by pulling the gripped rotation handrail bar away from the first support joint along the axial direction thereof. Therefore, the operation of rotating the rotating handrail bar from the horizontal posture to the vertically downward direction can be performed with one hand.

  Next, according to a seventh aspect of the present invention, the tilt restricting means is a widened portion formed in a part of the insertion piece, the width of which is set equal to the width of the gap, and the widened portion is the clamping piece. And the inclination of the rotation shaft with respect to the insertion hole is restricted.

  With such a configuration, the widened portion is fitted to the sandwiching piece, so that the inclination of the rotation shaft with respect to the insertion hole can be restricted, and rattling of the rotation handrail bar can be prevented. Moreover, since this fitting is performed in the gap between the pair of sandwiching pieces, it is possible to prevent a situation in which the user pinches fingers or the like between the widened portion and the sandwiching piece.

  Next, according to an eighth aspect of the invention, the tilt restricting means has a first restricting recess recessed in the first support joint and a second restricting recess recessed in the rotating joint, The tip of the piece is fitted with the first restriction recess, and the tip of the insertion piece is fitted with the second restriction recess, so that the inclination of the rotation shaft with respect to the insertion hole is restricted. Features.

  With such a configuration, the insertion hole is formed by two widely separated fitting portions by fitting the leading end portions of the sandwiching piece and the insertion piece to the first restriction recess and the second restriction recess, respectively. In order to restrict the inclination of the rotation shaft relative to the insertion hole, it is possible to more firmly restrict the inclination of the rotation shaft relative to the insertion hole and to prevent the rotation of the rotation handrail bar.

  According to the present invention, the rotating handrail bar can normally be stably held in a substantially horizontal posture, and both a normal person and a wheelchair user can easily rotate the rotating handrail bar and pass the handrail. A movable handrail that can be shifted to a state can be provided.

  Hereinafter, based on FIGS. 1-9, the movable handrail 10 which is embodiment of this invention is demonstrated. As shown in FIG. 1, the movable handrail 10 has a bar-shaped rotating handrail bar 11 that can be gripped by a user (not shown), and the rotating handrail bar 11 is provided at one end. While being able to rotate in the vertical direction around the joint 12, the latching joint 13 provided at the other end is supported by the second support joint 15 to maintain a substantially horizontal posture. The rotary joint 12 is pivotally supported by a first support joint 16 attached to the first fixed handrail bar 14, and the latching joint 13 is connected to a second support joint 15 attached to the second fixed handrail bar 17. It connects so that attachment or detachment is possible, and it is supported from the downward direction, and, thereby, the rotating handrail bar 11 is maintained by the substantially horizontal attitude | position. The first fixed handrail bar 14 and the second fixed handrail bar 17 are each maintained in a horizontal posture by columns 18 and 19 erected on the installation surface.

  The pivot joint 12 is pivotally supported with respect to the first support joint 16 via a pivot mechanism that will be described later so that the pivot joint 12 can pivot in the vertical direction and the horizontal direction. By allowing the stop joint 13 to pass the side of the second support joint 15, the rotating handrail bar 11 can be rotated downward relative to the second support joint 15. The movable handrail 10 can be provided on a part of the long handrail extending in the direction of the first fixed handrail bar 14 and the second fixed handrail bar 17 respectively, but is not limited to this. The handrail 10 can be installed alone.

  Here, based on FIG. 2, an operation procedure when the above-described rotating handrail bar 11 is rotated downward from the second support joint 15 will be described. First, as shown in FIG. 2A, the rotating handrail bar 11 is lifted upward, and the latching joint 13 is detached from the second support joint 15. Next, as shown in FIG. 2 (b), when the rotating handrail bar 11 is pulled in the direction 11a away from the first support joint 16 along its axial direction, the inclination regulating means described later is released. As shown in FIG. 2C, the rotating handrail bar 11 can be rotated in the horizontal direction 11h. Thereafter, as shown in FIG. 2 (d), if the rotating handrail bar 11 rotated in the horizontal direction 11h is rotated downward as it is, the latching joint 13 is moved to the second support joint 15 side. Therefore, the rotating handrail bar 11 can be rotated downward from the second support joint 15 as shown in FIG.

  Next, the structure and function of the movable handrail 10 will be described in detail with reference to FIGS. As shown in FIG. 3, the first fixed handrail bar 14 has a structure in which the outer peripheral surface of the stainless steel tube 14b is covered with a coated tube 14a made of vinyl chloride, and the first fixed handrail bar 14 is connected to the first fixed rail via a joint 20 attached to the opening 14c. A support joint 16 is attached. The joint 20 includes a bush 21 inserted in the first fixed handrail bar 14, a washer 22 disposed between the bush 21 and the joint 20, a spring washer 23, the joint 20, and the washer 22 in the axial direction. It is fixed to the opening 14 c of the first fixed handrail bar 14 by a bolt 24 that passes through and is screwed to the bush 21.

  The washer 22 has a shape in which a plurality of locking pieces 22a and 22b extending radially from the outer periphery of the disc-shaped main body portion 22c are alternately bent in the front and back directions of the main body portion 22c. The plurality of locking pieces 22b bent in the back surface direction of the main body portion 22c are engaged with the outer periphery of the bush 21, and the plurality of locking pieces 22a bent in the surface direction are engaged with the base end portion 20b of the joint 20. In this state, the bolt 24 is screwed into the bush 21, and in this state, the bush 21, the washer 22, and the base end 20 b of the joint 20 are inserted into the opening 14 c of the first fixed handrail bar 14.

  Thereafter, when the bolt 24 is rotated in the tightening direction, as the bush 21 approaches the joint 20, the locking piece 22 b on the back side of the washer 22 becomes a gap between the outer periphery of the bush 21 and the inner periphery of the first fixed handrail bar 14. And the locking piece 22a on the front side of the washer 22 is inserted into the gap between the outer periphery of the base end portion 20b of the joint 20 and the inner periphery of the first fixed handrail bar 14, so that the joint 20 has its engaging portion 20a. Is fixed in a state of protruding from the opening 14c of the first fixed handrail bar 14. Finally, when the first support joint 16 is attached to the engaging portion 20a and the set screw 25 is screwed from the side surface toward the outer periphery of the engaging portion 20a, the first support joint 16 is fixed to the engaging portion 20a. The

  In addition, the attachment structure of the rotation joint 12 and the latching joint 13 to the rotation handrail bar 11 and the attachment structure of the second support joint 15 to the second fixed handrail bar 17 are the first to the first fixed handrail bar 14 described above. Since it is the same as the mounting structure of the support joint 16, the same reference numerals are given to the respective members and description thereof will be omitted.

  As shown in FIG. 3, a pair of sandwiching pieces 12 a and 12 a are formed to protrude with a gap 12 b on the pivot joint 12 attached to the proximal end side of the pivot handrail bar 11, and a gap is formed on the first support joint 16. A width 16b is smaller than 12b and an insertion piece 16a to be inserted into the gap 12b is formed to protrude. The insertion piece 16 a is formed with a long hole-shaped insertion hole 16 c that is expanded in the direction from the first support joint 16 toward the second support joint 15. The pivot shaft 26 of the pivot joint 12 is held at both ends by the pair of sandwiching pieces 12a and 12a in a state of straddling the gap 12b, and a retaining ring 27 for preventing separation is attached to the distal end side. The insertion piece 16a of the first support joint 16 is provided with widened portions 16d and 16e whose width is set equal to the gap 12b between the sandwiching pieces 12a and 12a, with the insertion hole 16c interposed therebetween.

  As shown in FIG. 4, a latching piece 13 a is formed to protrude from the latching joint 13 attached to the tip side of the rotating handrail bar 11, and the second support joint 15 attached to the second fixed handrail bar 17 includes A support recess 15a to which the latching joint 13 can be attached and detached is provided from the upper surface side. The support recess 15a is provided with a support bottom 15b (see FIG. 5) for supporting the latching piece 13a from below.

  As shown in FIG. 1A, when the rotating handrail bar 11 of the movable handrail 10 is maintained in a substantially horizontal posture, the latch joint 13 provided on the front end side of the rotating handrail bar 11 and the second The support joint 15 is in the connected state shown in FIG. 5, and the rotary joint 12 and the first support joint 16 provided on the base end side of the rotary handrail bar 11 are in the state shown in FIG. That is, when the rotating handrail bar 11 is in a substantially horizontal state, when the user adds weight to the rotating handrail bar 11, the rotating handrail bar 11 is prevented from rotating unexpectedly downward. As shown in FIG. 5, the latching piece 13 a of the latching joint 13 is supported from below by the support bottom 15 b of the support recess 15 a of the second support joint 15.

  Further, as shown in FIG. 1A, when the rotating handrail bar 11 of the movable handrail 10 is maintained in a substantially horizontal posture, the rotating shaft 26 of the rotating joint 12 is as shown in FIG. The first support joint 16 is positioned near the first fixed handrail bar 14 in the insertion hole 16c, and the widened portions 16d and 16e of the insertion piece 16a are fitted to the sandwiching pieces 12a and 12a. Thereby, the inclination of the rotating shaft 26 with respect to the insertion hole 16c is restricted, and rattling of the rotating handrail bar 11 can be prevented. Further, since the fitting between the widened portions 16d and 16e and the sandwiching pieces 12a and 12a is performed within the gap 12b between the pair of sandwiching pieces 12a and 12a, the user can connect the widened portions 16d and 16e and the sandwiching pieces 12a and 12a, It is possible to avoid a situation in which a finger or the like is sandwiched between 12a and 12a.

  Next, as shown in FIGS. 1B and 2A, the tip end side of the rotating handrail bar 11 is lifted upward, and the latching joint 13 is detached from the second support joint 15, and FIG. As shown in FIG. 7, when the rotating handrail bar 11 is pulled in the direction 11a away from the first support joint 16 along its axial direction, the first support joint 16 and the rotation joint 12 are in the state shown in FIG. That is, when the rotation joint 12 is separated from the first support joint 16, the fitting between the widened portions 16d and 16e of the insertion piece 16a and the sandwiching pieces 12a and 12a is eliminated. Is released. Accordingly, as shown in FIGS. 2C and 8, the rotating handrail bar 11 can be rotated in the horizontal direction 11h.

  Thereafter, as shown in FIGS. 2 (d) and 9, if the rotating handrail bar 11 rotated in the horizontal direction 11h is rotated downward as it is, the latching joint 13 becomes the second support joint. It is possible to pass through the fifteen sides by passing each other. Therefore, as shown in FIG. 2 (e), the rotating handrail bar 11 can be rotated downward from the second support joint 15.

  Thus, in the movable handrail 10, after the rotating handrail bar 11 is rotated in the horizontal direction until the latching joint 13 reaches a position where it does not interfere with the second support joint 15, the latching joint 13 is moved from there. By passing the side of the second support joint 15, the rotating handrail bar 11 can be rotated downward relative to the second support joint 15. Therefore, even a wheelchair user or the like can easily pass without stretching his / her body and rotating the rotating handrail bar 11 upward.

  That is, in a state where the rotating handrail bar 11 is horizontal, when the user adds weight to the rotating handrail bar 11, the latching joint 13 prevents the rotating handrail bar 11 from rotating unexpectedly downward. It is connected to the second support joint 15 and supported from below, so that the horizontal posture of the rotating handrail bar 11 is reliably maintained, and the rotating handrail bar 11 can be easily moved from the second support joint 15 when passing by the user. It can be rotated downward.

  Further, by inserting the rotation shaft 26 into the insertion hole 16c that can be inclined in the horizontal direction in a state where the rotation shaft 26 is inserted, the rotation in the vertical direction around the rotation shaft 26 and the insertion hole 16c. On the other hand, the rotation shaft 26 can be rotated in a total of two directions including a horizontal rotation in which the rotation shaft 26 is inclined. Therefore, by tilting the rotation shaft 26 with respect to the insertion hole 16c, the latch joint 13 does not interfere with the second support joint 15 and the latch joint 13 can pass through the side of the second support joint 15. The rotating handrail bar 11 can rotate in the horizontal direction and can rotate in a wide range about the rotating shaft 26 in the vertical direction.

  Further, since the insertion hole 16 c is formed in a long hole shape whose diameter is increased in the direction from the first support joint 16 toward the second support joint 15, the rotation handrail bar 11 is rotated by the rotation around the rotation shaft 26. While being able to rotate in the vertical direction, the rotating handrail bar 11 can be rotated in the horizontal direction by rotating the rotating shaft 26 with respect to the insertion hole 16c in the insertion hole 16c.

  Furthermore, in the state where the latching joint 13 and the second support joint 15 are connected, the widening portion 16d fitted to the sandwiching pieces 12a and 12a as tilt regulating means for regulating the tilt of the rotation shaft 26 with respect to the insertion hole 16c. 16e are provided on both sides of the insertion piece 16a. In addition, when the rotating handrail bar 11 is moved in the direction 11a away from the first support joint 16 along its axial direction, the tilt restricting means is fitted between the sandwiching pieces 12a, 12a and the widened portions 16d, 16e. Is eliminated, and a release mechanism for releasing the restriction of the inclination of the rotation shaft 26 with respect to the insertion hole 16c is provided.

  Therefore, the user pulls the rotating handrail bar 11 gripped in the state shown in FIG. 2A away from the first support joint 16 along the axial direction thereof, thereby rotating the rotation shaft with respect to the insertion hole 16c. Since the regulation of the inclination of 26 can be released, the operation of rotating the rotating handrail bar 11 from the horizontal posture to the vertically downward direction can be easily performed with one hand.

  Next, other embodiments relating to the inclination regulating means will be described with reference to FIGS. 10 to 12, the parts denoted by the same reference numerals as those in FIGS. 1 to 9 are parts having the same structure and function as the constituent parts of the movable handrail 10, and description thereof is omitted.

  A pair of sandwiching pieces 32a and 32a project from the rotation joint 32 attached to the base end side of the rotation handrail bar 11 with a gap 32b therebetween, and the first support joint 36 has a width 36b smaller than the gap 32b and An insertion piece 36a to be inserted into the gap 32b is formed to protrude. The insertion piece 36 a is formed with a long hole-shaped insertion hole 16 c that is expanded in the direction from the first support joint 36 toward the second support joint 15. The pivot shaft 26 of the pivot joint 32 is held at both ends by a pair of sandwiching pieces 32a and 32a in a state of straddling the gap 32b.

  As shown in FIG. 10, the inclination restricting means of the present embodiment includes a pair of first restricting recesses 36 e recessed on both sides of the proximal end portion of the insertion piece 36 a of the first support joint 36 and a gap between the rotary joint 32. A second restriction recess 32e recessed at the base end of 32b, the leading end 32d of the sandwiching pieces 32a, 32a is fitted with the first restriction recess 36e, and the leading end 36d of the insertion piece 36a is second. By fitting the restriction recess 32e, the inclination of the rotation shaft 26 with respect to the insertion hole 16c is restricted.

  With such a configuration, the distal end portions 32d and 36d of the sandwiching piece 32a and the insertion piece 36a are fitted into the first restriction recess 36e and the second restriction recess 32e, respectively. Since the inclination of the rotation shaft 26 with respect to the insertion hole 16c is regulated by the two fitting portions, the inclination of the rotation shaft 26 with respect to the insertion hole 16c can be more firmly regulated, and the rattling of the rotation handrail bar 11 can be prevented. Can be prevented.

  On the other hand, as shown in FIGS. 1 (b) and 2 (a), the tip end side of the rotating handrail bar 11 is lifted upward to disengage the latch joint 13 from the second support joint 15, and FIG. 2 (b). As shown in FIG. 11, when the rotating handrail bar 11 is pulled in the direction away from the first support joint 36 along its axial direction, the first support joint 36 and the rotation joint 32 are in the state shown in FIG. That is, when the rotary joint 32 is separated from the first support joint 36, the tip portions 32d and 36d of the sandwiching piece 32a and the insertion piece 36a are detached from the first restriction recess 36e and the second restriction recess 32e. The inclination restricting means of the moving shaft 26 is released. Therefore, as shown in FIGS. 2C and 12, the rotating handrail bar 11 can be rotated in the horizontal direction 11h.

  Thereafter, as shown in FIGS. 2D and 12, if the rotating handrail bar 11 rotated in the horizontal direction 11h is rotated downward as it is, the latching joint 13 becomes the second support joint. It is possible to pass through the fifteen sides by passing each other. Therefore, as shown in FIG. 2 (e), the rotating handrail bar 11 can be rotated downward from the second support joint 15. Other structures and functions are the same as those of the movable handrail 10 described above.

  The movable handrail of the present invention can be widely used by being installed in a site of a building such as a general house in order to assist walking movement of elderly people and persons with walking disabilities.

(A) is a perspective view which shows the movable handrail which is embodiment of this invention, (b) is a perspective view which shows the state which rotated the rotating handrail material upwards. It is a figure which shows the operation procedure of the movable handrail shown in FIG. It is a disassembled perspective view of the rotation joint and 1st support joint which comprise the movable handrail shown in FIG. It is a disassembled perspective view of the latching joint and 2nd support joint which comprise the movable handrail shown in FIG. (A) is a top view of the rotation joint which comprises the movable handrail shown in FIG. 1, and the 1st support joint which supports it from the downward direction, (b) is the sectional view on the AA line in said (a). (A) is a top view of the rotation joint and the first support joint in a state where the second support joint constituting the movable handrail shown in FIG. 1 supports the latching joint, and (b) is the above (a). A sectional view taken along line BB, (c) is a side view of the rotating joint and the first support joint in the state shown in (a), and (d) is a sectional view taken along line CC in (c). (A) is a plan view of the rotary joint and the first support joint in a state in which the rotary handrail bar constituting the movable handrail shown in FIG. 1 is rotated upward and pulled in the axial direction. ) Is a cross-sectional view taken along the line DD in FIG. 4C, FIG. 4C is a side view of the rotary joint and the first support joint in the state shown in FIG. . (A) is a plane showing the rotary joint and the first support joint in a state where the rotary handrail bar constituting the movable handrail shown in FIG. 1 is rotated upward, pulled in the axial direction, and rotated in the horizontal direction. FIG. 4B is a cross-sectional view taken along line FF in FIG. 4A, FIG. 3C is a side view of the rotating joint and the first support joint in the state shown in FIG. 2A, and FIG. It is a GG sectional view taken on the line. (A) is a top view of the rotation joint and the first support joint in a state where the latch joint and the second support joint are passed, (b) is a cross-sectional view taken along line HH in (c), (c) ) Is a side view in the state shown in (a), and (d) is a cross-sectional view taken along the line II in (c). (A) is a top view which shows the rotation joint and 1st support joint which are other embodiment regarding an inclination control means, (b) is the JJ sectional view taken on the said (a), (c) is the said ( The side view of the rotation joint and 1st support joint in the state shown to a), (d) is the KK sectional view taken on the line in said (c). (A) is a top view which shows the rotation joint and 1st support joint in the state which rotated the rotation handrail bar shown to Fig.10 (a) upwards, and was pulled in the axial direction, (b) is in said (a). LL line sectional view, (c) is a side view showing the rotating joint and the first support joint in the state shown in (a), (d) is a MM line sectional view in (c). (A) is a top view which shows the rotation joint and 1st support joint in the state which rotated the rotation handrail bar shown to Fig.10 (a) upwards, was pulled in the axial direction, and was rotated in the horizontal direction. b) is a cross-sectional view taken along line NN in (a), (c) is a side view of the rotating joint and the first support joint in the state shown in (a), and (d) is an O- in (c). It is O line sectional drawing.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Movable handrail 11 Rotating handrail bar 11a The direction away from the 1st support joint 11h Horizontal direction 12, 32 Rotating joint 12a, 32a Holding piece 12b, 32b Gap 13 Latching joint 14 First fixed handrail bar 14a Cladding tube 14b Stainless steel Pipe 14c Opening 15 Second support joint 16, 36 First support joint 16a, 36a Insertion piece 16b, 36b Width 16c Insertion hole 16d, 16e Widening part 17 Second fixed handrail bar 18, 19 Post 20 Joint 20a Engagement part 20b Base end portion 21 Bush 22 Washer 22a, 22b Locking piece 22c Main body portion 23 Spring washer 24 Bolt 25 Set screw 26 Rotating shaft 27 Stop ring 32d, 36d Tip end portion 32e Second restriction recess 36e First restriction recess

Claims (8)

A bar-type rotating handrail bar that can be gripped by the user, the rotating handrail bar being rotatable in the vertical direction around one end, and being supported in the other end so as to maintain a substantially horizontal posture. In the handrail,
A rotary joint provided at one end of the rotary handrail bar, a first support joint that pivotally supports the rotary joint,
A latching joint provided at the other end of the rotating handrail bar; a second support joint that is detachably connected to the latching joint and is supported from below; and the rotating handrail bar is maintained in a substantially horizontal posture; With
The pivot joint is pivotally supported with respect to the first support joint so as to be pivotable in the vertical direction and the horizontal direction, so that the latching joint separated from the second support joint is moved to the second support joint side. The movable handrail is characterized in that the rotating handrail bar can be rotated downward from the second support joint.   One of the first support joint and the pivot joint is provided with a pivot shaft, and the other is formed with an insertion hole that can be tilted in a horizontal direction with the pivot shaft inserted. 2. The movable type according to claim 1, wherein the movable type is capable of rotating in a vertical direction around a rotational axis, and is capable of rotating in a horizontal direction by an inclination of the rotational axis in the insertion hole. handrail.   The movable handrail according to claim 2, wherein the insertion hole is formed in a long hole shape whose diameter is increased in a direction from the first support joint to the second support joint. Of the first support joint and the pivot joint, one holding the pivot shaft is formed with a pair of sandwiching pieces projecting across a gap, and the other is smaller in width than the gap and in the gap. The insertion piece to be inserted is formed to protrude,
4. The movable handrail according to claim 2, wherein both ends of the rotating shaft are held by the pair of holding pieces across the gap, and the insertion hole is formed in the insertion piece.   The movable handrail according to claim 4, further comprising an inclination regulating means for regulating an inclination of the rotation shaft with respect to the insertion hole in a state where the latching joint and the second support joint are connected. .   The tilt regulating means is provided with a release mechanism that releases the regulation of the tilt of the pivot shaft with respect to the insertion hole when the pivot handrail bar is moved in the direction away from the first support joint along its axial direction. The movable handrail according to claim 5, wherein:   The inclination restricting means is a widened portion formed in a part of the insertion piece, the width of which is set equal to the width of the gap, and the widening portion is fitted to the sandwiching piece, whereby the insertion portion The movable handrail according to claim 5, wherein an inclination of the rotation shaft with respect to the hole is restricted.   The tilt restricting means has a first restricting recess recessed in the first support joint and a second restricting recess recessed in the rotating joint, and the tip of the clamping piece is the first restricting recess. The movable member according to claim 5, wherein the tilt of the rotation shaft with respect to the insertion hole is regulated by fitting with the recess and fitting the tip of the insertion piece with the second restriction recess. Handrail.

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