JP2015083764A - Movable connection type handrail device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a movable connection type handrail device capable of sliding with reducing friction.SOLUTION: A side surface part 22 of an upper cross rail 12 and a side surface part 22 of a handrail body 11 facing to the side surface part 22 are coupled with each other as slidable by a longitudinal direction slide mechanism 35 which comprises a concave engagement part 23 and a convex engagement part 31 engaging with the concave engagement part 23. The convex engagement part 31 includes a wide width part 33 which is provided at the tip side of a base end part 32 and is wider than the base end part 32, and, an inner surface 22U of the side surface part 22 which engages with the wide width part 33 to prevent omission of the wide width part 33 is provided at the concave engagement part 23. Since, at the tip side of the wide width part 33, a guide roller 70 which rolling-moves to the concave engagement part 23 is provided, friction resistance upon sliding can be mitigated by the guide roller 70. When the spacing between hand rail bodies 10, 11 displaces from a state of being widened so that the spacing is shrunk, the guide roller 70 rolling-moves to a concave place 25, and the direction can be switched smoothly.

Description

  The present invention relates to a movable connection type handrail device that connects a handrail body to a connected portion so as to be slidable in a length direction.

  Conventionally, as this type, a concave groove having a widened middle shape is formed on the side surface of the lateral frame ridge on the side facing the adjacent unit, and a bulging head substantially corresponding to the concave groove shape is formed on one of the opposed concave grooves. A handrail-type expansion having a configuration in which a slide core material formed by opposingly forming a shaped fitting protrusion is fixedly fitted, and the protruding protrusion of the slide core material is slidably fitted into the other recessed groove A joint (for example, Patent Document 1) has been proposed.

  In the above-mentioned handrail type expansion joint, when the adjacent unit is extended and displaced in the direction away from it, the tip end side of the unit which is the center of the adjacent unit is bent so as to be lowered (see FIG. 4 of this embodiment). Displacement is not possible, and there is a risk that an excessive force will be generated at the fitting location, causing damage.

  On the other hand, the telescopic handrail device is provided in a transfer passage between two buildings adjacent to each other through a gap, and the first handrail assembly and the second handrail assembly are parallel to each other and horizontally. The first handrail assembly is disposed adjacent to the second handrail assembly and closer to the center axis of the crossing passage, and the first upper chord member protrudes in a direction close to the second upper chord member. A rail part is integrally formed, a lower rail part protruding in a direction close to the second lower chord material is integrally formed on the first lower chord material, and an upper rail part is formed in the longitudinal direction of the second upper chord material. An upper guide groove that is movably fitted in the direction is formed, and a lower guide groove in which the lower rail portion is movably fitted in the longitudinal direction is formed in the second lower chord material, and the other of the first lower chord material body Immediately below the pillar placed near the building, there is a guide rod that can be moved on the joint cover body. Such telescopic handrail device provided with La (for example, Patent Document 2) are proposed.

Japanese Patent No. 3708420 Japanese Patent No. 5099735

  In the telescopic handrail device of Patent Document 2, the guide roller supports the entire weight including the loads of the first and second handrail assemblies, the passerby's belongings leaning on the handrail, and luggage, but the upper surface of the joint cover body It is practically difficult to set it horizontally, and it is difficult to maintain smooth movement. In addition, it is necessary to separately provide a guide roller and a joint cover body, and the construction is expected to be complicated.

  Further, in the handrail type expansion joint of Patent Document 1, since the fitting protrusion is slidably fitted into the other recessed groove, a frictional resistance is generated at the time of sliding in the fitting portion, and dust is generated in the fitting portion. When it accumulates, the resistance increases. In addition, if dust or the like accumulates in the fitting portion over time and clogs and hardens, the fitting protrusion is fixed to the recessed groove by the dust, and there is a risk of causing a slide failure during an earthquake, etc. Since the rail part of the telescopic handrail device of Patent Document 2 is also fitted in the guide groove, there is a concern similar to the above.

  In view of the above problems, an object of the present invention is to provide a movable handrail device that can slide with reduced friction.

  The invention of claim 1 includes a handrail body having a horizontal rail and a vertical rail, and a connected portion for connecting the handrail body so as to be slidable, and a side surface portion of the horizontal rail and a connected surface facing the side surface portion. In the movable connection type handrail device in which the opposing portion of each portion is slidably connected by a longitudinal slide mechanism having a concave engagement portion and a convex engagement portion that engages with the concave engagement portion, the convex shape The engaging portion has a base end portion in the depth direction of the concave engaging portion, and a wide portion provided on the distal end side of the base end portion and wider than the base end portion, and engages with the wide portion. A retaining portion for retaining the wide portion is provided in the concave engaging portion, and a guide roller that rolls to the concave engaging portion is provided on the distal end side of the wide portion. .

  According to a second aspect of the present invention, the guide roller includes a rolling bearing.

  The invention of claim 3 is characterized in that a plurality of the guide rollers are provided at intervals in the length direction of the convex engagement portion.

  The invention according to claim 4 is characterized in that a gap is provided in the concave engaging portion between the concave engaging portion and the wide portion.

  According to the configuration of the first aspect, the frictional resistance during sliding can be reduced by the guide roller. In addition, since the guide roller is provided on the distal end side of the wide portion, even if a force in the direction of pulling out the wide portion from the concave engaging portion is generated, the force is applied to the wide portion, so an excessive force is applied to the guide roller. And stable rolling for a long time.

  Moreover, according to the structure of Claim 2, the friction accompanying rotation of a guide roller can be reduced significantly.

  Moreover, according to the structure of Claim 3, it can slide smoothly with a some guide roller.

  According to the fourth aspect of the present invention, even if dust accumulates in the concave engaging portion, there is a gap, so that the wide portion can be moved by scraping dust.

It is sectional drawing which shows Example 1 of this invention. FIG. 5 is an enlarged cross-sectional view of the concave engaging portion and the convex engaging portion of the guide roller portion. It is an enlarged sectional view of a concave engaging part and a convex engaging part. It is a whole side view same as the above. It is a side view after sliding to the direction where a space | interval spreads as above. It is sectional drawing which shows Example 2 of this invention. FIG. 5 is an enlarged cross-sectional view of the concave engaging portion and the convex engaging portion of the guide roller portion. It is an enlarged sectional view of a concave engaging part and a convex engaging part. It is sectional drawing which shows Example 3 of this invention. It is sectional drawing which shows Example 4 of this invention.

  Preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The embodiments described below do not limit the contents of the present invention described in the claims. In addition, all of the configurations described below are not necessarily essential requirements of the present invention. In each embodiment, an unprecedented movable connection type handrail device is obtained by adopting a new movable connection type handrail device different from the conventional one, and the movable connection type handrail device will be described.

  1 to 5 show Embodiment 1 of the present invention. As shown in FIG. 1, housings 1 and 2 such as buildings are adjacent to each other at a predetermined interval. 4 is provided, and a passage corridor 5 serving as a passage between the entrances 3 and 4 is provided. The floor portion of the passage corridor 5 projects an upper floor slab 6 from one housing 1 and a lower floor slab from the other housing 2. 7 is provided in a projecting manner and the front ends of the floor slabs 6 and 7 are overlapped to absorb the displacement between the frames 1 and 2. Here, it is preferable that the casings 1 and 2 are seismic and seismic isolation structures. Further, it is preferable that the upper floor slab 6 is pivotally connected to the housing 1 by the rotation connecting portion 6A, and the top end of the upper floor slab 6 is placed on the lower floor slab 7 and overlapped.

  On both sides in the width direction of the transfer corridor 5, movable connection type handrail devices 9, 9 that connect the housings 1, 2 are provided with a space left and right. The pivotally connected handrail device 9 includes one handrail body 10 and the other handrail body 11 that forms a pair with the one handrail body 10, and in this example, the handrail bodies 10 and 11 have the same configuration. The upper and lower horizontal rails 12, 12A, 13, 13A have a rectangular outer shape and a substantially square cross section, and the vertical rails 14 connecting the upper and lower horizontal rails 12, 12A, 13, 13A. , 15 and the handrail bodies 10, 11 are arranged side by side in a direction intersecting the sliding direction. Further, a plurality of middle vertical bars 17 are arranged at predetermined intervals between the upper horizontal bars 12 and 12A and the lower horizontal bars 13 and 13A. The middle vertical bars 17 are arranged at the upper and lower horizontal bars 12, 12A and 13. , 13A are connected. Each member of the handrails 10 and 11 is made of an aluminum extrusion-molded product. In addition, the interval between the vertical rails 14 and 15 and the wall surfaces 1A and 2A of the casings 1 and 2; the interval between the lower horizontal rails 13 and 13A and the floor slabs 6 and 7; (Mm) is provided below.

  And the vertical rail 14 of the base end side of one handrail body 10 and 10 is connected with the said housing 1 by the some upper and lower hinge members 18, 18, and 18 so that rotation is possible. Further, the vertical rail 14 on the base end side of the other handrail body 11, 11 is connected to the housing 2 so as to be rotatable by upper and lower hinge members 18, 18. As described above, the handrail bodies 10 and 11 are rotatably connected to the casings 1 and 2 as the connecting portions at the end portions in the length direction.

  The configuration of the upper horizontal rails 12 and 12A will be described with reference to FIGS. The upper horizontal rail 12 provided with the concave engaging portion has side surface portions 22 and 22 on both sides of the curved upper surface portion 21, and a concave engaging portion 23 is provided below the one side surface portion 22. Yes. The concave engaging portion 23 is formed with a slit-like opening 24 continuous in the length direction of the upper horizontal rail 12 in the side surface portion 22, and a concave having a larger vertical dimension than the opening 24 inside the opening 24. 25. An upper surface portion 26U and a lower surface portion 26K in the horizontal direction are provided above and below the recess 25, and the side opposite to the opening of the recess 25 is closed by a bottom surface portion 27 in the vertical direction. The dimension from the inner surface 22U of the side surface portion 22 above and below the opening 24 to the outer surface of the bottom surface portion 27 is the depth dimension S of the concave engagement portion 23.

  Further, the inner surface of the other side surface portion 22 and the inner surface of the bottom surface portion 25 are connected by a partition plate portion 28 in a substantially horizontal direction. A substantially U-shaped core material 29 is disposed in the upper crosspiece 12, and the core material 29 is disposed in a direction away from the handrail body 11, which is a connected portion. Therefore, the center of gravity of the handrail body 10 is on the side opposite to the handrail body 11 from the center line of the handrail body 10.

  Further, the upper horizontal rail 12A provided with the convex engaging portion has side surface portions 22 and 22 on both sides of the curved upper surface portion 21, and the lower side of the other side surface portion 22 has a convex engaging portion 31. Are provided, and the inner surfaces of both side surface portions 22, 22 are connected by a partition plate portion 28. The convex engaging portion 31 includes a base end portion 32 projecting from the outer surface of the other side surface portion 22 in the depth direction (horizontal horizontal direction), and a wide portion 33 provided on the front end side of the base end portion 32. The wide portion 33 is formed wider than the base end portion 32 in the vertical direction. The base end portion 32 is loosely inserted into the opening 24, and the wide portion 33 is loosely inserted into the recess 25 from the longitudinal end portion of the upper horizontal rail 12, and the side surfaces of the upper horizontal rails 12 and 12A. When a force for separating the portions 22 and 22 is applied, the opening 24 is engaged with the inner surface 22U of the upper and lower side surfaces 22 to prevent the separation, and the inner surface 22U is a retaining portion. A stepped portion 34 is provided at the center of the front end side of the wide portion 33 in the vertical direction, and a concave groove 34A as a marker is formed in a substantially V-shaped manner at the center of the stepped portion 34.

  A substantially U-shaped core material 29 </ b> A is disposed in the upper crosspiece 12 </ b> A, and the core material 29 </ b> A is located on the center line of the handrail body 11.

  A guide roller 70 that rolls on the concave engaging portion 23 is provided on the step portion 34 on the distal end side of the wide portion 33. As shown in FIGS. 4 and 5, the guide roller 70 is provided on the front end side of the handrail body 11, and is provided at a substantially equal interval from the front end in a range of half or more of the length of the handrail body 11. The diameter of the guide roller 70 is larger than the vertical dimension of the wide portion 33, and the guide roller 70 contacts the upper and lower surface portions 26U and 26K before the wide portion 33 contacts the upper and lower surface portions 26U and 26K. The diameter of the guide roller 70 is equal to or smaller than the distance between the lower surface of the upper surface portion 26U and the upper surface of the lower surface portion 26K, and is equal to or larger than 3/4 of the distance. It is possible to smoothly switch the rolling.

  The guide roller 70 includes a rolling bearing, and for example, a deep groove ball bearing is used. The guide roller 70 can roll between an inner ring 71 having an inner ring raceway groove 71A on the outer peripheral surface, an outer ring 72 having an outer ring raceway groove 72A on the inner peripheral surface, and the inner ring raceway groove 71A and the outer ring raceway groove 72A. A plurality of balls 73 arranged, and a corrugated press retainer (not shown) made of steel that holds these balls 73 at predetermined intervals in the circumferential direction.

  A guide roller 70 is attached to the wide portion 33 by inserting a screw 74 into the inner ring 71 and screwing the screw 74 into the stepped portion 34, and the screw 74 is a central axis of rotation of the guide roller 70. It is. Further, this rotation center axis is orthogonal to the length direction of the handrail body 11 in the horizontal direction.

  Further, the head portion 74T of the screw 74 is formed in a curved shape, and the head portion 74T is close to the inner surface of the bottom surface portion 27 as shown in FIG. In addition, the dimension between the front-end | tip of the head 74T and the outer surface of the wide part 33 is smaller than the said depth dimension S, and both dimension difference is smaller than the said dimension S1. Therefore, before the side surfaces 22 and 22 of the handrails 10 and 11 come into contact, the head portion 74 </ b> T formed in a curved surface comes into contact with the bottom surface portion 27. In this case, since the head 74T has a curved surface, the resistance during contact is small. A screw 74 may be screwed onto the inner ring 71.

  Furthermore, a hole for screwing the screw 74 can be accurately formed using the concave groove 34A as a mark. Further, by providing the step portion 34A, the outer ring 72 does not contact the wide portion 33, and the outer ring 72 can be stably rotated.

  A length-direction slide mechanism 35 slidably connects the side surface portion 22 of the upper horizontal rail 12 and the side surface portion 22 of the upper horizontal rail 12A by the concave engagement portion 23 and the convex engagement portion 31. Is configured. The length direction slide mechanism 35 includes a plurality of guide rollers that roll on the lower surface of the upper surface portion 26U of the recess 25 and the upper surface of the lower surface portion 26K. Further, the depth dimension S2 of the gap 36 is larger than the dimension S1 between the side surfaces 22 and 22 of the upper horizontal rails 12 and 12A. For example, the dimension between the side surfaces 22 and 22 of the upper horizontal rails 12 and 12A is About 3 mm is preferable and can be set in a range of about 3 mm to 8 mm. Further, the depth dimension S of the recess 25 is preferably at least twice or more than the depth dimension T of the wide portion 33 because it is easy to move dust and the gap 36 becomes large.

  The configuration of the lower horizontal rail 13 will be described. The lower horizontal rail 13 provided with a concave engaging portion has side surface portions 42 on both sides of a flat upper surface portion 41, and a lower portion of one side surface portion 42 A concave engaging portion 43 is provided. The concave engaging portion 43 is formed with a slit-like opening 44 continuous in the length direction of the lower horizontal rail 13 in the side surface portion 42, and a concave having a larger vertical dimension than the opening 44 inside the opening 44. 45. The recess 45 has a substantially circular shape.

  Further, the lower horizontal rail 13A provided with the convex engaging portion has side portions 42, 42 on both sides of the flat upper surface portion 41, and a convex engaging portion 51 is provided below the other side surface portion 42. It has been. The convex engagement part 51 is integrally provided with a base end part 52 projecting in the depth direction from the outer surface of the other side face part 42 and a wide part 53 provided on the front end side of the base end part 52. The wide portion 53 is formed wider than the base end portion 32 in the vertical direction. In this example, the wide portion 53 is formed in a circular shape that fits into the recess 45. The base end portion 52 is loosely inserted into the opening 44, and the wide portion 53 is loosely inserted into the recess 45 from the lengthwise end portion of the lower horizontal rail 13, and the side surfaces of the lower horizontal rails 13 and 13 </ b> A. When a force for separating the portions 42 and 42 is applied, the inner surface 45U of the recess 45 above and below the opening 44 is engaged to prevent the retaining portion, and the inner surface 45U is a retaining portion.

  Next, the effect | action is demonstrated about the said structure. When an X-direction interval between adjacent housings 1 and 2 increases or decreases due to an earthquake or the like (FIG. 4), the handrail bodies 10 and 11 slide with each other, and the overlapping portion of the handrail bodies 10 and 11 increases or decreases. Then, the distance displacement is absorbed. In this case, when displacing from the state of FIG. 4 so that the interval is reduced, the guide roller 70 rolls into the recess 25, and the direction can be switched smoothly.

  And since a guide roller rolls in the recess 25, the frictional resistance at the time of a slide can be reduced significantly compared with the past.

  Further, even if dust accumulates in the concave engaging portion 23, the gap 36 is present, so that the wide portion 33 can be moved by scraping the dust toward the bottom surface portion 27 side, and can be prevented from being fixed by dust.

  In particular, when the handrail bodies 10 and 11 are slid while changing the direction from the state in which they are separated to the maximum in the X direction, they can slide smoothly because of the presence of the guide roller 70.

  Thus, in this embodiment, corresponding to claim 1, a handrail body 10 having an upper horizontal rail 12 and vertical rails 14 and 15 which are horizontal rails, and a connected portion for slidably connecting the handrail body 10 The side rail 22 of the upper horizontal rail 12 and the side wall 22 which is the opposite side of the handrail 11 facing the side wall 22 are connected to the concave engagement portion 23 and the concave engagement portion 23. In the movable handrail device that is slidably connected by a length direction slide mechanism 35 having a convex engagement portion 31 to be engaged, the convex engagement portion 31 is a base in the depth direction of the concave engagement portion 23. An end portion 32 and a wide portion 33 which is provided on the distal end side of the base end portion 32 and is wider than the base end portion 32 and engages with the wide portion 33 to prevent the wide portion 33 from coming off. An inner surface 22U of the side surface portion 22 serving as a stopper is provided in the concave engagement portion 23, and a concave portion is formed on the distal end side of the wide portion 33. Since providing the guide rollers 70 rotating in the engagement portion 23, the guide roller 70 can be reduced friction during sliding. In addition, since the guide roller 70 is provided on the distal end side of the wide portion 33, an excessive force is not applied to the guide roller 70 even if a force in the direction of pulling out the wide portion 33 from the concave engagement portion 23 is generated. Can stably roll.

  As described above, in this embodiment, the guide roller 70 includes the rolling bearing corresponding to the second aspect, so that the friction caused by the rotation of the guide roller can be greatly reduced.

  Further, in this embodiment, in correspondence with the third aspect, since the plurality of guide rollers 70 are provided at intervals in the length direction of the convex engagement portion 31, the plurality of guide rollers 70 smoothly. Can slide.

  Further, in this embodiment, in correspondence with the fourth aspect of the present invention, since the concave engagement portion 23 is provided with the gap 36 between the concave engagement portion 23 and the wide portion 33, the concave engagement portion 23 is provided. Even if dust accumulates in 23, the gap 36 is present, so that the wide portion can be moved by scraping dust.

  In addition, as an effect on the embodiment, since the guide roller 70 is provided on the front end side of the handrail 11, the guide roller 70 rolls into the recess 25 when the gap is displaced from a state where the gap is widened. The direction can be switched smoothly. Furthermore, since the guide roller 70 rolls on both the upper and lower surface portions 26U and 26K, it is possible to reliably reduce friction during movement of the handrail bodies 10 and 11. Further, since the inner diameter of the outer ring 72 is larger than the vertical dimension of the step portion 34A, the outer ring 72 does not hit the step portion 34A, and the outer ring 72 can be stably rolled.

  Further, since the clearance 36 is provided at the distal end side of the wide portion 33 in the concave engagement portion 23 other than the 70 guide rollers, the frictional resistance at the time of sliding can be reduced. Since the gap 36 is present even if it accumulates, the wide portion 33 can move by scraping dust. In addition, in the state where the wide portion 33 is engaged with the inner surface 22U which is a retaining portion, the depth of the gap 36 from the dimension S1 which is the distance between the side surface portion 22 of the handrail body 10 and the side surface portion 22 of the handrail body 11 which is the opposite portion. Since the dimension S2 is large, the depth dimension S2 of the gap 36 is more than twice the dimension T of the wide part 33, and the gap between the concave engaging part 23 and the wide part 33 is large, smooth Slide movement is possible.

  FIGS. 6-7 shows Example 2 of this invention, attaches | subjects the same code | symbol to the same part as the said Example 1, and abbreviate | omits the detailed description, In this example, the handrail body 10 is a housing. 1 is slidably attached to the outer surface 1G. Corresponding to the upper horizontal rail 12, a convex mounting member 61 in which the convex engaging portion 31 is provided integrally with a flat mounting portion 60 is formed, and this convex mounting member 61 has a cross section shown in FIG. Is formed over the entire length of the handrail body 10.

  The attachment portion 60 has upper and lower through holes 62 and 62A, and the through holes 62 are provided in the longitudinal direction and at substantially equal intervals in 62A. Further, the inner surface of the mounting portion 60 has a flat portion where the upper through-hole 62 is formed, and a portion where the lower through-hole 62A is formed sandwiches the lower through-hole 62A. The ridges 63 are formed on the upper and lower sides.

  Further, the convex engaging portion 31 protrudes outward from the upper outer surface of the mounting portion 60, and is integrally provided with a base end portion 32A having a longer projecting dimension than the base end portion 32, and a base end of the base end portion 32A. Between the end side and the outer surface of the mounting portion, as shown in FIG. 6, a reinforcing inclined portion 64 formed obliquely is formed. Further, a concave portion 65 is formed on the inner surface of the mounting portion 60 corresponding to the base end portion 32A. The wide portion 33 is integrally provided on the distal end side of the base end portion 32. As in the first embodiment, a guide roller 70 is provided on the distal end side of the wide portion 33.

  In this case, the convex mounting member 61 is a connected portion, and the tip 64S of the reinforcing inclined portion 64 of the convex mounting member 61 is a facing portion corresponding to the side surface portion 22 of the upper horizontal rail 12.

  Then, the anchors 66, 66 are inserted into the through holes 62, 62A and screwed into the holes drilled in the housing 1, so that the distal ends of the anchors 62, 62A are enlarged, and the convex mounting member is attached to the outer surface 1G of the housing 1. 61 is fixed.

  On the other hand, corresponding to the lower horizontal rail 13, a convex mounting member 68 in which the convex engaging portion 51 is integrally provided on a flat mounting portion 67 is formed, and this convex mounting member 68 is shown in FIG. The cross section shown is formed over the entire length of the handrail body 10.

  Through holes 67T are formed in the mounting portion 67, and the through holes 67T are provided at substantially equal intervals in the length direction. In addition, on the inner surface of the attachment portion 67, protrusions 69 are formed on the upper and lower sides of the through hole 67T.

  In addition, the concave engaging portion 51 protrudes outward from the lower end of the mounting portion 67, and integrally includes a base end portion 52A having a longer projecting dimension than the base end portion 52, and the wide end is formed at the distal end of the base end portion 52A. A portion 53 is provided.

  Then, the anchor 66A is inserted into the through hole 67T, and the convex attachment member 68 is fixed to the outer surface 1G of the housing 1 by the anchor 66A.

  Thus, in this embodiment, corresponding to claim 1, a handrail body 10 having an upper horizontal rail 12 and vertical rails 14 and 15 which are horizontal rails, and a convex mounting for slidably connecting the handrail body 10 A member 61, and a concave engaging portion 23 and the concave engagement portion 23, the side surface portion 22 of the upper horizontal rail 12 and the tip 64S of the reinforcing inclined portion 64 which is the opposing portion of the convex mounting member 61 facing the side surface portion 22. In the movable connection type handrail device that is slidably connected by a longitudinal slide mechanism 35 having a convex engagement portion 31 that engages with the joint portion 23, the convex engagement portion 31 has a depth of the concave engagement portion 23. A base end portion 32 in the vertical direction, and a wide portion 33 provided on the distal end side of the base end portion 32 and wider than the base end portion 32, and engages with the wide portion 33 so that the wide portion 33 is removed. An inner surface 22U of the side surface portion 22 as a retaining portion for stopping is provided in the concave engagement portion 23, and the wide portion 3 The tip side from providing the guide rollers 70 rotating in the concave engaging portion 23, from exhibits the same advantages as the first embodiment.

  Further, as an effect of the embodiment, since the protrusions 69 are provided on the inner surface of the mounting portion 67 on the upper and lower sides of the through hole 67T, they come into contact with the outer surface 1G which is the connected surface, and the convex mounting member 61. Can be attached stably.

  FIG. 7 shows a third embodiment of the present invention. The same reference numerals are given to the same parts as those of the above-described embodiments, and the detailed description thereof will be omitted. A concave engaging portion 23 is provided on the side surface portion 42 of the horizontal rail 13, and a convex engaging portion 31 provided with a guide roller 70 is provided on the side surface portion 42 of the lower horizontal rail 13 </ b> A. In this case, the upper surface portion 26U is constituted by a part of the upper surface portion 41.

  Thus, in this embodiment, corresponding to claim 1, the handrail body 10 having the upper horizontal rail 12 and the lower horizontal rail 13 which are horizontal rails and the vertical rails 14 and 15, and the handrail body 10 can be slid. A handrail body 11 as a connected portion to be connected, side surface portions 22 and 42 of the upper horizontal rail 12 and the lower horizontal rail 13, and side surface portions 22 and 42 as opposed portions of the handrail body 11 facing the side surface portions 22 and 42. In a movable connection type handrail device in which a slidably connected by a longitudinal slide mechanism 35 provided with a concave engagement portion 23 and a convex engagement portion 31 engaged with the concave engagement portion 23, The joint portion 31 includes a base end portion 32 in the depth direction of the concave engagement portion 23 and a wide portion 33 provided on the front end side of the base end portion 32 and wider than the base end portion 32. The inner surface 22U of the side surface portion 22 that is a retaining portion that engages with 33 and prevents the wide portion 33 from being detached, Provided Jogakarigo portion 23, since the tip end of the wide portion 33 provided with the guide rollers 70 rotating in the concave engaging portion 23, effects comparable to those above-described embodiments.

  Further, as an effect of the embodiment, since the upper horizontal rails 12 and 12A and the lower horizontal rails 13 and 13A are connected to the connected parts by the length direction slide mechanisms 35 and 35, respectively, further stable sliding operation is possible. Become.

  FIG. 8 shows a fourth embodiment of the present invention. The same reference numerals are given to the same portions as those of the above-described embodiments, and detailed description thereof will be omitted. A concave engaging portion 23 is provided on the side surface portion 42 of the horizontal rail 13, and a convex engaging portion 31 provided with a guide roller 70 is provided on the side surface portion 42 of the lower horizontal rail 13 </ b> A.

  Thus, in this embodiment, corresponding to claim 1, the handrail body 10 having the upper horizontal rail 12 and the lower horizontal rail 13 which are horizontal rails and the vertical rails 14 and 15, and the handrail body 10 can be slid. A convex attachment member 61 to be connected, and a concave engagement portion between a side surface portion 22 of the upper horizontal rail 12 and a tip 64S of a reinforcing inclined portion 64 which is an opposing portion of the convex attachment member 61 facing the side surface portion 22. 23, the movable engagement type handrail device slidably connected by a longitudinal slide mechanism 35 having a convex engagement portion 31 that engages with the concave engagement portion 23. The convex engagement portion 31 is a concave engagement member. A base end portion 32 in the depth direction of the joint portion 23 and a wide portion 33 provided on the front end side of the base end portion 32 and wider than the base end portion 32, are engaged with the wide portion 33 and The inner surface 22U of the side surface portion 22 which is a retaining portion for retaining the wide portion 33 is connected to the concave engaging portion 23. Only, since the tip end of the wide portion 33 provided with the guide rollers 70 rotating in the concave engaging portion 23, Takara, effects comparable to those above-described embodiments.

  Further, as an effect of the embodiment, since the upper horizontal beam 12 and the lower horizontal beam 13 are connected to the connected parts by the length direction sliding mechanisms 35 and 35, respectively, a more stable sliding operation is possible.

  As mentioned above, although embodiment of this invention was explained in full detail, this invention is not limited to said each embodiment, A various deformation | transformation implementation is possible within the range of the summary of this invention. For example, in the embodiment, an example in which a plurality of guide rollers are provided has been described. However, except for claim 3, at least one guide roller may be provided on the front end side of the handrail. Moreover, although the wide part illustrated the plate-shaped thing and the circular thing, the thing of various shapes, such as a polygon and an ellipse, can be used. Also, a connecting member provided with a concave engaging portion on one handrail body, a concave engaging portion on the other handrail body which is a connected portion, and a convex engaging portion on both ends of the base end portion, These handrails may be provided separately from each other, and both handrails may be connected by the connecting member.

DESCRIPTION OF SYMBOLS 1 Housing 2 Housing 9 Rotating connection type handrail device 10 Handrail body 11 Handrail body (connected part)
12 Upper horizontal rail (horizontal rail)
12A Upper horizontal rail (horizontal rail)
13 Lower horizontal rail (horizontal rail)
13A Lower horizontal rail (horizontal rail)
14 Vertical beam 15 Vertical beam 22U Inner surface (prevention part)
23 concave engaging portion 31 convex engaging portion 32 base end portion 33 wide portion 35 length direction slide mechanism 36 gap S depth dimension S1 side dimension S2 gap depth dimension 43 concave engaging portion 43A concave engagement portion 43U inner surface (retaining portion)
46 Gap 51 Convex engaging portion 52 Base end portion 53 Wide portion 61 Convex mounting member (connected portion)
70 Guide roller

Claims (4)

A handrail body having a horizontal rail and a vertical rail, and a connected portion for slidably connecting the handrail body, and a side surface portion of the horizontal rail and a facing portion of the connected portion facing the side surface portion, In a movable connection type handrail device that is slidably connected by a longitudinal slide mechanism having a concave engagement portion and a convex engagement portion that engages with the concave engagement portion,
The convex engagement portion has a base end portion in the depth direction of the concave engagement portion, and a wide portion provided on the distal end side of the base end portion and wider than the base end portion,
A retaining portion that engages with the wide portion and prevents the wide portion from coming off is provided in the concave engaging portion,
A movable connection type handrail device, characterized in that a guide roller that rolls to the concave engagement portion is provided on the front end side of the wide portion. The movable connection type handrail device according to claim 1, wherein the guide roller includes a rolling bearing. The movable connection type handrail device according to claim 1 or 2, wherein a plurality of the guide rollers are provided at intervals in the length direction of the convex engagement portion. The movable connection type handrail device according to any one of claims 1 to 3, wherein a gap is provided in the concave engagement portion between the concave engagement portion and the wide portion.

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