JP2019094703A - Handrail connection structure - Google Patents

Abstract

To provide a handrail connection structure capable of absorbing displacement in the vertical direction, and capable of stably executing displacement operation.SOLUTION: An end part of a handrail body 11 and a handrail body 11A are vertically relatively movably connected. A vertical shaft 32 is provided in the end part of the handrail body 11, and the vertical shaft 32 is provided in the handrail body 11A, and a connection member 33 is provided for connecting these vertical shafts 32 and 32. Since the connection member 33 comprises upper-lower cylindrical parts 41 and 43 for vertically movably connecting the vertical shafts 32, the two axes of the vertical shafts 32 and 32 of the handrail body 11 and the handrail body 11A are vertically movably provided to the upper-lower cylindrical parts 41 and 43 of the connection member 33, and become a balanced structure, and can also expand a movable area, and a high reliability displacement absorption structure is provided.SELECTED DRAWING: Figure 1

Description

  BACKGROUND OF THE INVENTION Field of the Invention The present invention relates to a handrail connection structure for vertically movably connecting handrails and the like provided between fixing parts such as adjacent housings.

  Conventionally, this type of expansion handrail is provided across the gap between an adjacent building and a building, and the end post of the handrail on one building side and the other building side opposite to this A pair of joint handrails each having a peripheral frame consisting of an upper and lower horizontal frame and a left and right vertical frame are arranged between the end pillars of the handrail so as to partially overlap each other. The horizontal frames mutually overlapping each other are slidably connected by the horizontal frame connecting means, and the vertical frames on the opposite side of the overlapping vertical frames of the both joint handrails are slid relative to the end post adjacent thereto. There is an expansion handrail (for example, Patent Document 1) characterized in that it is vertically vertically slidable and rotatably coupled.

JP, 2009-74237, A

  In the above expansion handrail, only the slide gap provided between the lower side hinge member and the upper side nut can absorb the displacement in the vertical direction against the displacement in the vertical direction. I could not cope enough.

  In addition, since the configuration of one member and the other member of the slide rotation hinge is different, one and the other become unbalanced, and in the case of an earthquake, etc., an uneven force is applied to the connected handrails in the slide rotation hinge and the vertical direction There is a possibility that the displacement absorbing operation is adversely affected. In addition, there is also a problem that the displacement amount can not be sufficiently secured because the displacement is made in the vertical direction about the uniaxial sliding rotary hinge.

  Therefore, in the present invention, in consideration of the above problems, it is an object of the present invention to provide a handrail connection structure which can absorb displacement in the vertical direction and can stably perform displacement operation.

According to the invention of claim 1, in the handrail connecting structure in which the end of the handrail and the connected portion are vertically movably connected, the handrail side longitudinal slide portion is provided at the end of the handrail, and the connected portion And a connecting member for connecting the handrail-side vertical slide and the connected-portion-side vertical slide,
The connecting member has a handrail side receiving portion for connecting the handrail side vertical slide movably up and down, and a connected portion side receiving portion for connecting the connected side vertical slide movably vertically. It features.

  According to the second aspect of the present invention, the handrail-side vertical slide portion is rotatably provided at the end of the handrail, and the coupled-portion-side vertical slide portion is rotatably provided at the coupled portion. It is characterized by

  Moreover, invention of Claim 3 is characterized by providing the angle holding member which hold | maintains the angle which the said handrail and the said to-be-connected part make.

  In the invention according to claim 4, the handrail-side vertical slide portion and the connected portion-side vertical slide portion are on the vertical axis, and a common vertical slide portion mounting body is provided for the handrail and the connected portion. The vertical slide mounting body has a cylindrical portion provided with the vertical axis rotatably and vertically movable, and the handrail side receiving portion and the connected portion side receiving portion are cylindrical portions. I assume.

  Further, the invention according to claim 5 is characterized in that the handrail side vertical slide portion is integrally provided at the end of the handrail, and the connected portion side vertical slide portion is integrally provided at the coupled portion. Do.

  According to the configuration of claim 1, the handrail constituting the two axes and the vertical slide portion of the connected portion are provided vertically movable with respect to the pair of receiving portions of the connecting member, and the structure is well balanced. In addition, it is possible to widen the range of movement smoothly and to obtain a reliable displacement absorbing structure.

  According to the configuration of claim 2, since the handrail side vertical slide portion and the connected portion side vertical slide portion are rotatably provided, the vertical displacement is caused even if a rotational force is applied to the vertical displacement. Can be absorbed stably.

  According to the configuration of the third aspect, in the structure having the vertical slide portion of two axes, the angle holding member prevents the swing between the handrail and the connected portion, and holds the angle between the two. it can.

  According to the configuration of the fourth aspect, the member is symmetrical in the left and right direction, and the movable range in which the member operates stably can be widened, and the displacement in the vertical direction can be accommodated.

  According to the configuration of claim 5, since the vertical slide portion is integrally provided, the number of parts is reduced and the structure is simplified.

It is a perspective view of the connection structure after pairing which shows Example 1 of this invention. It is a front view of the connection structure of a state same as the above. It is a plane sectional view of the connection structure which made the connection member the same as the above. It is a top cross-sectional view of the connection structure which made the middle connection part the cross section same as the above. It is a top view of an angle holding member same as the above. It is a longitudinal cross-sectional view of a handrail body same as the above. It is a side view of a handrail device same as the above. It is a top view of a handrail device same as the above. It is a front view of a handrail device same as the above. 10A is an enlarged sectional view of the hole, FIG. 10A shows a hole of a bearing, and FIG. 10B shows a hole of a connecting member. It is a longitudinal cross-sectional view of the handrail which makes a pair which shows Example 2 of this invention. It is a perspective view of a connection member same as the above. It is a plan sectional view of a connection structure same as the above. It is a top view of an angle holding member same as the above. It is a plane sectional view of a connection structure showing Example 3 of the present invention.

  Preferred embodiments of the present invention will be described in detail with reference to the attached drawings.

  1 to 10 show Embodiment 1 of the present invention. As shown in FIG. 7 to FIG. 9 and the like, the housings 1 and 2 such as buildings are adjacent to each other at a predetermined distance, and the housings 1 and 2 are provided with the entrances 3 and 4. A passage hallway 5 is provided, and the floor portion of the passage hall 5 projects the upper floor plate 6 from one of the housings 1 and projects the lower floor plate 7 from the other housing 2. The tip side of the two is overlapped to absorb the displacement between the housings 1 and 2. Here, it is preferable that the housings 1 and 2 be seismic and seismic isolation structures. Further, it is preferable that the upper floor plate 6 be rotatably connected to the housing 1 by the rotational connection portion 6A, and the tip of the upper floor plate 6 be placed on the lower floor plate 7 and overlapped. Further, in the crossover corridor 5, side plate portions 8 and 8 are provided on both sides of the floor plate 7.

  Left and right handrails 11, 11 are slidably connected in the left-right direction (Y direction) to the outer surface 1G of the housing 1 positioned on the left and right of the entrance 3.

  Further, left and right handrails 11A, 11A are slidably connected to the inner surfaces 8N, 8N of the side plate portions 8, 8 in the length direction (X direction) of the side plate portions 8, 8, respectively. The housings 1 and 2 are attachment points of the handrails 11 and 11A. Moreover, in this example, the handrail 11A is a connected part.

  The end of the handrail 11 connected to the outer surface 1G and the end of the handrail 11A connected to the inner surface 8N are rotatably connected about the vertical axis by connectors 9, 9 as hinges. The handrail 11 and the handrail 11A are disposed substantially orthogonal to each other on a plane.

  The handrails 11 and 11A have upper and lower horizontal bars 12 and 13 having a rectangular outer shape, and vertical bars 14 and 14 connecting the upper and lower horizontal bars 12 and 13, respectively. It has the frame 16 which it has. Further, a plurality of middle vertical bars 15 are arranged at predetermined intervals between the upper horizontal bar 12 and the lower horizontal bar 13. The members such as the handrails 11 and 11A may be made of aluminum or aluminum alloy, but they are formed by extrusion molding or bending using an extrusion molding machine or a bending molding machine regardless of the material. The cross-sectional shape shown is continuously formed along the entire length in the longitudinal direction. In addition, the distance between the vertical beams 14 and 14 and the wall of the frame 1, 2 and the distance between the lower horizontal beam 13 and the floor slabs 6 and 7 and the installation interval of the middle vertical beam 15 are 110 mm (millimeters) or less Shall be

  The upper groove 17 is formed in the lower portion of the side surface of the upper horizontal beam 12 based on FIG. 6 etc. The upper groove 17 is a sliding direction of the handrails 11 and 11A (the length of the horizontal beam An upper groove 17A having a substantially C-shaped cross section continuously formed in the X direction, which is a direction), is provided, and the upper groove 17 has an opening 17B narrower in upper and lower dimensions than the upper groove 17A in the side surface.

  Further, a lower groove portion 18 is formed on the side surface of the lower cross rail 13, and the lower groove portion 18 is a cross section continuously formed in the X direction which is the sliding direction (horizontal rail length direction) of the handrails 11 and 11A. The lower groove 18A has a substantially C-shaped lower groove 18A, and the lower groove 18 has an opening 18B which is narrower in upper and lower dimensions than the lower groove 18A in the side surface.

  The upper groove 17A and the lower groove 18A are the other fitting portion.

  A protrusion attachment member 21 is provided corresponding to the upper horizontal crosspiece 12. The protrusion attachment member 21 projects a projecting piece 23 in the lateral direction at the upper part of the flat plate-like attaching portion 22, and the tip of the projecting piece 23 The convex part 24 is provided and the cross section shown in FIG. 6 is formed over the full length of handrails 11 and 11A. Further, a convex portion mounting member 21A is provided corresponding to the lower horizontal bar 13, and the convex portion mounting member 21A projects the projecting piece 23 in the lateral direction below the mounting portion 22. And the said convex part 24 is one fitting part, and the upper and lower convex parts 24 and 24 engage with the upper concave groove 17A and the lower concave groove 18A slidably in the length direction.

  In the attachment portion 22, through holes 22T are provided at substantially equal intervals in the length direction. Further, on the inner surface of the mounting portion 22, protrusions 25 and 25 are formed on the upper and lower sides of a portion in which the through hole 22T is formed.

  Then, the anchor 26 is inserted into the through hole 22T, and the projection attachment members 21 and 21A are fixed to the outer surface 1G of the housing 1 or the inner surface 8N of the side plate 8 by the anchor 26.

  Next, a connecting structure using the connecting tool 9 will be described. In this example, the handrail 11 and the handrail 11A which is a connected part are connected by the connecting tool 9 at an angle of about 90 degrees on a plane. The connecting tool 9 connects the vertical bars 14 and 14 at the end of the handrails 11 and 11A, and is provided at intervals in the vertical direction. The connector 9 includes bearings 31, 31 fixed to the longitudinal bars 14, 14 at the respective end portions, and a columnar longitudinal axis 32, rotatably and vertically movably inserted through the bearings 31, 31. 32 and a connecting member 33 for connecting the longitudinal axes 32, 32 and having two symmetrical longitudinal axes 32, 32 arranged in this way. And the said bearing part 31 is a mounting body for vertical slide parts.

  The two bearing portions 31, 31 and the vertical axes 32, 32 have the same configuration, and the connecting member 33 has a vertically and horizontally symmetrical shape. The bearing portion 31 has a hole 36 for inserting the longitudinal axis 32 in a cylindrical cylindrical portion 35, and a substantially T-shaped main body mounting portion 37 is provided on the outer surface of the cylindrical portion 35. 37 is fixed to the outer surface of the end of the longitudinal bar 14 by a fixing member such as a screw 38. The vertical axis 32 is inserted through the cylindrical portion 35 rotatably and vertically movably. The vertical axis 32 of the handrail 11 is a handrail-side vertical slide portion, and the vertical axis 32 of the handrail 11A is an object to be covered It is a connection part side vertical slide part.

  As shown in FIG. 10A, in the holes 36, a plurality of recesses 36A, 36A,... Are formed at equal intervals on the circumference, and specifically, four recesses 36A are formed in this example. An arc-shaped inner circumferential surface 36M forming the hole 36 is formed in the remaining four convex portions 36B, and the vertical axis 32 slides in the rotational direction and the vertical direction on the plurality of arc-shaped inner circumferential surfaces 36M.

  The connecting member 33 has upper and lower cylindrical portions 41 and 43 vertically spaced on the left and right of the main body, and the upper and lower cylindrical portions 41 and 43 can rotate the vertical axis 32 and can move vertically. The vertical distance between the upper and lower cylindrical parts 41 and 43 is larger than the height of the cylindrical part 35, and the dimensional difference T between the space and the height corresponds to the handrails 11 and 11A. It is an amount that can be displaced in the vertical direction of The upper and lower cylindrical portions 41 and 43 of the handrail 11 are the handrail-side receiving portions, and the upper and lower cylindrical portions 41 and 43 of the handrail 11A are the connected portion-side vertical receiving portions.

  The connecting member 33 includes an upper connecting portion 51 connecting the left and right upper cylindrical portions 41 and 41, a lower connecting portion 52 connecting the left and right lower cylindrical portions 43 and 43, and upper and lower connecting portions 51 and 52. And a longitudinal middle connecting portion 53 connected at the center in the left-right direction. The upper and lower connecting portions 51 and 52 are located outside the center line of the handrail 11 in the width direction, and a projecting portion 51A which protrudes from the upper cylindrical portion 41 in the lengthwise direction of the handrail 11 and the handrail 11A A protrusion 51A is provided outside the center in the width direction and protrudes from the upper cylindrical portion 41 in the longitudinal direction of the handrail 11A, and a diagonal intermediate portion 51B connecting the tips of the protrusions 51A and 51A. The oblique intermediate portion 51B forms an angle of approximately 45 degrees with the longitudinal direction of the handrails 11 and 11A. Further, the intermediate connection portion 53 integrally connects the upper and lower diagonal intermediate portions 51B and 51B.

  In the holes 42, 44, a plurality of recesses 45, 45 ... are formed at equal intervals around the circumference. Specifically, in this example, four recesses 45 are formed, and the remaining four protrusions are formed. An arc-shaped inner circumferential surface 46M forming the holes 42 and 44 is formed in 46, and the vertical axis 32 slides in the rotational direction and the up-down direction on the plurality of arc-shaped inner circumferential surfaces 46M.

  The angle holding member 55 which regulates the angle which the said handrail 11 and 11A makes is provided. Further, the vertical axis 32 is constituted by the shaft portion of the bolt 56. The angle holding member 55 is made of a metal plate disposed between the end portions of the handrails 11 and 11A, and insertion holes 57 and 57 for inserting the bolts 56 and 56 on both sides are drilled. , 56 are parallel and substantially vertically disposed. The angle holding member 55 is made of, for example, the same aluminum or aluminum alloy as the handrails 11 and 11A.

  Further, on the angle holding member 55, control edge portions 58 and 58 which are control portions close to the end faces of the vertical bars 14 and 14 of the handrails 11 and 11A are formed, and in the same manner as the handrails 11 and 11A. The edges 58, 58 form an angle of 90 degrees. In this case, the handrails 11 and 11A move up and down relative to the angle holding member 55 in order to absorb the displacement of the handrails 11 and 11A in the height direction. A gap is provided between the end face 58 and the end face of the longitudinal bar 14. That is, the restriction edge 58 is not in pressure contact with the end face of the vertical bar 14. In this example, the angle between the handrails 11 and 11A is maintained in the range of 80 degrees to 100 degrees (80 degrees or more and 100 degrees or less), preferably 85 to 95 degrees by the angle holding member 55. The angle holding member 55 is disposed so as to be superimposed on the upper portion of the upper cylindrical portion 41 and the lower portion of the lower cylindrical portion 43, respectively. A washer 39 is provided between the upper cylindrical portion 41 and the cylindrical portion 35.

  As shown in FIG. 5, the inner end sides of the restricting edges 58, 58 are connected by an oblique inner edge 59, and the outer end sides of the restricting edges 58, 58 are the upper and lower connecting portions 51, It is connected by the outer edge 60 of substantially the same shape as the outer surface 52.

  Then, the angle holding members 55 are disposed at the upper and lower sides of the connecting member 33, and the bolt 56 is inserted into the insertion hole 57, the hole 42, the hole 36, the hole 44 and the insertion hole 57 from above. Double-screw nuts 56N and 56N to each other. As shown in FIG. 2, the lower nut 56N is a cap nut.

  Next, the operation of the above configuration will be described. As shown in FIG. 7, when an interval displacement in the X direction between adjacent housings 1 and 2 spreads or narrows due to an earthquake or the like, handrail 11A slides relative to side plate 8 and side plate 8 and handrail. The overlapping portion of the body 11A is increased or decreased, and the interval displacement in the X direction is absorbed.

  In addition, when displacement occurs in the Y direction between adjacent housings 1 and 2 due to an earthquake or the like, the handrail 11 slides relative to the housing 1, and the overlapping portion between the housing 1 and the handrail 11 increases or decreases. Displacement is absorbed.

  In addition, a displacement in the Z direction occurs between the end portions of the handrails 11 and 11A, which causes one of the bearing portions 31 of the handrails 11 and 11A to ascend, the other bearing portion 31 to descend, and the dimensional difference T It can absorb displacement in the Z direction. In this case, since the joint 9 has the common bearings 31, 31 attached to the ends of the handrails 11, 11A, respectively, and the bearings 31, 31 are connected to the longitudinal axes 32, 32 by the connection member 33 which is symmetrical in the left-right direction. The balance of the connection structure of both handrails 11 and 11A becomes uniform, and it is possible to follow the displacement stably, and as compared with the conventional one axis, it is a two-axis type equipped with two bolts 56 and 56 as shaft parts. Because of this, a reliable displacement absorbing effect can be obtained.

  Further, the angle holding member 55 can hold the angle formed by the two handrails 11 and 11A substantially constant, so that displacements in the X and Y directions can be absorbed smoothly.

  As described above, in the present embodiment, the end of the handrail 11 is connected in the handrail connecting structure in which the end of the handrail 11 and the handrail 11A serving as the connected part are vertically movable relative to each other. In addition to the vertical axis 32 which is the handrail side vertical slide, the vertical axis 32 which is the connected side vertical slide is provided on the handrail 11A, the vertical axis 32 of the handrail side and the vertical axes 32 and 32 of the connected side The connecting member 33 includes a connecting member 33. The connecting member 33 includes an upper and lower cylindrical portion 41, 43 serving as a handrail side receiving portion for vertically movably connecting the vertical axis 32 on the handrail side, and the vertical axis 32 of the connected side. The upper and lower cylindrical portions 41 and 43 which are connected to each other so as to be vertically movably connected, the handrail 11 and the handrail with respect to the pair of upper and lower cylindrical portions 41 and 43 of the connecting member 33 Two axes of the vertical axes 32, 32 of 11A are vertically movable, and the balance It becomes balanced structure, and can widen the range of motion, high displacement absorbing structure reliability.

  As described above, in the present embodiment, the vertical axis 32 serving as the handrail-side vertical slide portion is rotatably provided at the end of the handrail 11 corresponding to the second aspect, and the handrail 11A serving as the coupled portion is coupled Since the vertical axis 32, which is the section-side vertical slide section, is rotatably provided, the vertical axis 32 on the handrail side and the vertical axis 32 on the coupled section side are rotatably provided. Even if a force is applied, the displacement in the vertical direction can be stably absorbed.

  As described above, according to the third embodiment, the angle holding member 55 for holding the angle formed by the handrail 11 and the handrail 11A to be connected is provided. In the structure which it has, the rocking between the handrail 11 and the handrail 11A can be prevented by the angle holding member 55, and the angle between both can be held.

  As described above, in the present embodiment, the handrail-side vertical slide portion and the coupled portion-side vertical slide portion correspond to the fourth aspect, and the vertical axis 32 corresponds to the handrail 11 and the handrail 11A serving as the coupled portion. Provided with bearings 31, 31 which are attachment bodies for the vertical slide portion, and the bearing portion 31 has a cylindrical portion 35 provided with the vertical axis 32 rotatably and vertically movable, and the handrail side vertical slide portion and the object to be covered Since the connecting portion side receiving portions are the upper and lower cylindrical portions 41 and 43, the members are symmetrical in the left-right direction, and the movable range in which the members operate stably can be widened, and the displacement in the vertical direction can be accommodated.

  Hereinafter, as an effect of the embodiment, since the connecting member 33 has the upper and lower cylindrical portions 41 and 43, the vertical axis 32 can be stably raised and lowered. Further, since the holes 36, 42, 44 are provided with the plurality of recesses 36A, 45, 45 over the entire length, the weight of the member can be reduced. Furthermore, since the cylindrical portion 35 of the bearing portion 31 is disposed between the upper cylindrical portion 41 and the lower cylindrical portion 43, even if the cylindrical portion 35 moves up and down relative to the connecting member 33, By coming into contact with the upper cylindrical portion 41 or the lower cylindrical portion 43, it does not come off. Further, since the angle holding member 55 is formed by processing a plate material, it has a simple configuration and can be obtained inexpensively. Furthermore, since the plane angles of the handrails 11 and 11A are held within the predetermined range by the angle holding member 55, both do not swing. Further, since the angle holding member 55 is fixed by the bolt 56 constituting the vertical axis 32, the fixing structure can be simplified. Furthermore, since the angle holding members 55 having the same shape are arranged vertically, it is possible to hold the angle uniformly. In addition, a handrail 11 or 11A having an upper horizontal bar 12 and a lower horizontal bar 13 and a vertical bar 14 and a rod 1 and a side plate 8 which are connected parts for slidably connecting the handrails 11 and 11A. And an outer surface 1G and an inner surface 8N, which are opposing portions of the housing 1 and the side plate portion 8 facing the side surfaces, and a concave groove 17A which is a concave engagement portion. In the movable connecting handrail device slidably connected by the length direction slide mechanism provided with the convex engaging portion convex portion 24 engaged with the concave groove 17A which is the concave engaging portion, the handrail 11 disposed in the cross direction 11A can be stably absorbed in the Z direction by connecting them with the connecting tool 9 of two axes.

  11 to 14 show a second embodiment of the present invention, in which the same reference numerals are given to the same parts as the first embodiment, and the handrails 11 and 11A are connected to each other if detailed description thereof is omitted and described in detail. The modification of the connection structure which used the connection tool and the connection tool which are carried out is shown.

  A vertical slide mounting portion 61 is provided to project from the vertical rail 14 at the end of the handrail 11 or 11A. The mounting portion 61 integrally has a convex portion 63 having a substantially C-shaped cross section at the tip of the projecting piece 62, and the mounting portion 61 is integrally formed when the vertical crosspiece 14 is formed. The outer periphery of the convex portion 63 has a cylindrical shape. Then, at the time of molding, the attachment portion 61 is formed on the entire length of the vertical beam 14, and the upper and lower portions of the attachment portion 61 are cut away. The lower end 61S of the mounting portion 61 is located at a position separated above the lower horizontal bar 13. The mounting portion 61 is provided at the center in the width direction of the end face of the vertical rail 14 and protrudes in the longitudinal direction of the handrails 11 and 11A.

  As shown in FIG. 11, a plate-shaped fore lid 12F is fixed to the end opening of the upper cross rail 12, and a plate-shaped fore lid 13F is fixed to the end opening of the lower cross rail 13. .

  In this example, the connecting member 33A is a connecting member, and the connecting member 33A has one side 65 and the other side 65 in the cross direction, and a receiving portion at the tip of the one side 65 and the other side 65 The cylindrical barrels 66 and 66 are integrally provided, and the cylindrical tubular portion 66 has an arc shape whose inner surface is substantially C-shaped, and the convex portion 63 is slidably inserted in the length direction. . In this example, the open cylindrical portion 66 connecting the convex portion 63 of the handrail 11 is the handrail side receiving portion, and the open cylindrical portion 66 connecting the handrail 11A serving as the connected portion is the connected portion side receiving portion It is. The connecting member 33A and the mounting portion 61 have substantially the same length in the vertical direction.

  Further, a screw hole 67 is provided in the connection member 33A, and the screw hole 67 is provided in the vicinity of the opening cylindrical portion 66 inside the connection member 33A.

  In the angle holding member 55, through holes (not shown) are drilled corresponding to the screw holes 67, 67, and a screw 68 is inserted through the through hole, and the screw 68 is screwed into the screw hole 67. The angle holding member 55 is fixed to the upper edge of the connecting member 33A.

  Next, the operation of the above configuration will be described. When the vertical displacement occurs between the handrails 11 and 11A, the one convex portion 63 moves downward with respect to the connecting member 33A to thereby cause the vertical displacement between the end portions of the handrails 11 and 11A. Since it can absorb and the connection structure is formed symmetrically with respect to each handrail 11 and 11A, it can be moved up and down with good balance, and can absorb displacement in the vertical direction.

  As described above, in the present embodiment, the end of the handrail 11 is connected in the handrail connecting structure in which the end of the handrail 11 and the handrail 11A serving as the connected part are vertically movable relative to each other. The handrail body side vertical slide portion is provided with the convex portion 63, and the handrail 11A is provided with the convex portion 63 as the connected portion side vertical slide portion, and the handrail side convex portion 63 and the to-be-connected portion side convex portion 63 are connected. A connecting member 33A is provided, and the connecting member 33A connects the opening cylindrical portion 66 serving as a handrail side receiving portion for connecting the protrusion 63 on the handrail side vertically movably to the protrusion 63 on the connected side movably up and down Because of the open cylindrical portion 66 serving as the connected portion side receiving portion, the handrail 11 and the convex portions 63, 63 of the handrail 11A with respect to the pair of open cylindrical portions 66, 66 of the connection member 33A. Because the axis is vertically movable, the balance It becomes the structure, and can widen the range of motion, high displacement absorbing structure reliability.

  Moreover, in this embodiment, in accordance with the fifth aspect of the present invention, the projecting portion 63 which is the handrail side vertical slide portion is integrally provided at the end of the handrail 11 and the connected portion is connected to the handrail 11A which is the connected portion. Since the convex part 63 which is a part-side vertical slide part is integrally provided, since the vertical slide part is integrally provided, the number of parts is reduced and the structure is simplified.

  Further, as an advantage of the embodiment, since the vertical slide mounting portion 61 is integrally formed with the vertical crosspiece 14, a connection structure having two axes can be obtained at low cost. Further, since the connecting member 33A, which is a connecting member integrally provided with the opening cylindrical portions 66, 66 as the receiving portions is also constituted by one integrally formed member, the number of parts is small, and it is inexpensive and easy to assemble. . In addition, since the opening cylindrical portion 66 has a smaller opening than the inside, the opening cylindrical portion 66 itself serves as a rotation stopper for the convex portion 63 and can hold the angle between the adjacent handrails 11 and 11A. The lower angle holding member 55 may not be used, and the upper angle holding member 55 needs to be used to restrict the upper end position of the convex portion 63, but the restriction edge may be omitted. In addition, by providing the connecting member 33A and the vertical slide mounting portion 61 continuously on the upper and lower sides of the handrails 11 and 11A, the handrails 11 and 11A can be vertically displaceably connected by one connecting member 33A. it can. In this case, by setting the connecting member 33A and the mounting portion 61 for the vertical slide portion to be 1/2 or more, preferably 2/3 or more of the length of the vertical rail 14, one connecting member 33A and one vertical slide portion The handrails 11 and 11A can be stably connected to each other by the mounting portion 61. The maximum length of the connecting member 33A and the vertical slide mounting portion 61 is the same as that of the vertical crosspiece 14.

  FIG. 15 shows a third embodiment of the present invention, in which the same reference numerals as in the above embodiments denote the same parts, and a detailed description thereof will be omitted to describe in detail a connector for connecting the handrails 11 and 11A. The modification of the connection structure which used and the connection tool is shown.

  A vertical slide mounting portion 61A is provided so as to project from the vertical rail 14 at the end of the handrail 11, 11A. The mounting portion 61A is integrally provided with the opening cylindrical portion 66 which is a vertical slide portion at the tip of the projecting piece 62, and the opening cylindrical portion 66 has a substantially C-shaped arc shape, and the mounting The portion 61A is integrally formed when the longitudinal bar 14 is formed.

  In this example, the connecting member 33B is a connecting member, and the connecting member 33B has one side 65 and another side 65 in the cross direction, and a longitudinal slide is made at the tip of the one side 65 and the other side 65 A convex portion 63, 63 having a substantially C-shaped cross section is integrally formed, and the convex portion 63 is slidably inserted in the opening cylindrical portion 66 in the length direction. In this example, the convex portion 63 connecting the opening cylindrical portion 66 of the handrail 11 is the handrail side receiving portion, and the convex portion 63 connecting the handrail 11A serving as the connected portion is the connected portion side receiving portion .

  Further, a screw hole 67 is provided in the connecting member 33B, and the screw hole 67 is provided in the vicinity of the convex portion 63 inside the connecting member 33B. Then, by screwing the screw 68 into the screw hole 67, the angle holding member 55 is fixed to the upper edge of the connecting member 33B as in the second embodiment.

  As described above, in the present embodiment, the end of the handrail 11 is connected in the handrail connecting structure in which the end of the handrail 11 and the handrail 11A serving as the connected part are vertically movable relative to each other. An open cylindrical portion 66 which is a handrail side vertical slide portion is provided, and an open cylindrical portion 66 which is a connected side vertical slide portion is provided on the handrail 11A, and the open cylindrical portion 66 on the handrail side and the connected side The connecting member 33B is provided with a connecting member 33B for connecting the opening cylindrical portion 66, and the connecting member 33B has a convex portion 63 serving as a handrail side receiving portion for connecting the opening cylindrical portion 66 on the handrail side movably up and down; Since it has convex part 63 which is the connected part side receiving part which connects opening cylindrical part 66 so that vertical movement is possible, handrail 11 and opening cylindrical parts 66 and 66 of handrail 11A, connection member 33B Two axes of a pair of convex parts 63, 63 are set to be movable up and down Because it is, it becomes balanced construction, and can widen the range of motion, high displacement absorbing structure reliability.

  In addition, in this embodiment, the open cylindrical portion 66 serving as the handrail-side vertical slide portion is integrally provided at the end of the handrail 11 corresponding to the fifth aspect, and the handrail 11A serving as the coupled portion is provided. Since the opening cylindrical portion 66 serving as the connected portion-side vertical slide portion is integrally provided, the vertical slide portion is integrally provided. Therefore, the number of parts is reduced and the structure is simplified.

  Further, as an advantage of the embodiment, since the vertical slide mounting portion 61 is integrally formed with the vertical crosspiece 14, the connection structure can be obtained at low cost. Further, the connecting member 33B, which is a connecting member integrally provided with the convex portions 63, 63 as the vertical axis, is also constituted by one integrally formed member, so that the number of parts is small, and it is inexpensive and easy to assemble. In addition, since the opening cylindrical portion 66 has a smaller opening than the inside, the opening cylindrical portion 66 itself serves as a rotation stopper for the convex portion 63 and can hold the angle between the adjacent handrails 11 and 11A. The lower angle holding member 55 may not be used, and the upper angle holding member 55 needs to be used to restrict the upper end position of the opening cylindrical portion 66, but the restriction edge may be omitted.

  As mentioned above, although embodiment of this invention was explained in full detail, this invention is not limited to said each embodiment, Various deformation | transformation implementation is possible within the range of the summary of this invention. For example, although handrail 11A was shown as a to-be-connected part in an example, a to-be-connected part may be a frame, a side plate part, etc. Further, the restricting portion of the angle holding member is not limited to the linear shape, and may be uneven. Furthermore, a convex engaging portion may be provided on the handrail, and a concave engaging portion may be provided on the coupled portion. Further, the shapes of the vertical axis and the receiving portion can be selected appropriately, and it is preferable that the engagement surface is a circular arc surface, but in Example 2 and Example 3, the cross section may be square or the like. The handrails are arranged at an angle of approximately 90 degrees, but the handrails are not limited to 90 degrees, but they are arranged in a straight line at an angle of 180 degrees, or 135 between 90 degrees and 180 degrees, for example In this case, the angle of the connecting member may be matched to the angle of the handrails.

11 Handrail 11A Handrail (connected part)
31 Bearing (Mounting for vertical slide)
32 Vertical axis (vertical slide part)
33 connecting member 33A, 33B connecting member (connector)
41 Upper tube part (receiving part)
43 Lower tube part (receiving part)
55 Angle holding member 63 Convex part (vertical slide part, receiving part)
66 Opening cylindrical part (receiving part, vertical slide part)

Claims (5)

In the handrail connecting structure in which the end of the handrail and the connected part are vertically movable relative to each other, the handrail side vertical slide is provided at the end of the handrail, and the connected side vertical slide is provided in the connected part. Set up the
It has a connecting member for connecting the handrail side vertical slide portion and the connected portion side vertical slide portion,
The connecting member has a handrail side receiving portion for connecting the handrail side vertical slide movably up and down, and a connected portion side receiving portion for connecting the connected side vertical slide movably vertically. Connection structure for handrails to be characterized. The handrail-side vertical slide portion is rotatably provided at an end portion of the handrail, and the connected-portion-side vertical slide portion is rotatably provided at the coupled portion. Handrail connection structure. The connection structure for handrails according to claim 1 or 2, further comprising an angle holding member for holding an angle formed by the handrail and the connected portion. The handrail-side vertical slide portion and the to-be-connected portion-side vertical slide portion are vertical axes, and the handrail and the to-be-connected portion are respectively provided with a common vertical slide portion mounting body. 4. A cylindrical portion provided with the vertical axis rotatably and vertically movable, wherein the handrail side receiving portion and the connected portion side receiving portion are cylindrical portions. Connection structure for handrails. The handrail side longitudinal slide portion is integrally provided at an end portion of the handrail body, and the coupled portion side longitudinal slide portion is integrally provided at the coupled portion. Construction.

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