JP4307305B2 - Joint for handrail - Google Patents

Description

The present invention handrail relates joint for coupling the other like the Judges.

Handrails provided along the passage, by the condition of the site to be installed, if the horizontally are straight provided, if provided bent horizontally, there is a case provided by bending upwards or downwards along the inclined surface Also, the bending angle varies in size. For example, Patent Literature 1 and Patent Literature 2 disclose a handrail joint having a structure that can be bent at an arbitrary angle so that it can be used in any of these cases.
Japanese Patent No. 3088676 JP 2002-167937 A

However, the joint of Patent Document 1 is formed in a cylindrical shape having two connecting members that can be connected to an end portion such as a handrail, and a curved center with a certain curvature between the two connecting members. And at least three angle adjusters that are non-parallel planes orthogonal to the axis, and the side surfaces of the adjacent angle adjusters are connected to each other so as to be rotatable at their center positions. The center position of the outer side surface of the angle adjusting body located on the outermost side is pivotally connected with the axis as a center.
Therefore, since it consists of two connecting members and at least three angle adjusting bodies, the number of constituent members is large, and it takes time to connect these constituent members. There is a problem in that the curved shape is exposed at the connecting portion of the two, and a continuous feeling such as handrails on both sides cannot be obtained. Further, since the joint of this document does not have a structure for connecting to the support column, in order to support the handrail and the like with the support column, the support column is erected at a position away from the connection part between the joint and the handrail, It is necessary to support a handrail or the like with the support column, and it takes time and effort for construction.

In addition, the joint of Patent Document 2 is a handrail joint that can be connected to a support pillar in addition to connecting a handrail or the like at an arbitrary angle. Two handrail connecting members and two angle adjusting members formed in a columnar shape having a curved axis with a certain curvature and having both side surfaces as non-parallel planes orthogonal to the axis are centered on each other. Two angle adjusters that are connected to each other so as to be rotatable at the position, and the two angle adjusters are rotatably connected about the axis thereof, and the lower part is rotatable about the horizontal axis to the support column. It is comprised from the support | pillar connection member connected with.
Therefore, since the component members are two handrail connecting members and two angle adjusting bodies formed by connecting two angle adjusting members and a column connecting member, the number of members is very large, and they are connected to each other. Work is not easy. Since the angle adjusting body formed by connecting two angle adjusting members formed in a columnar shape having a curved axis is connected to the left and right sides of the column connecting member, as in the joint of Patent Document 1, There is a problem in that a curved shape is exposed at the connecting portion such as the handrail in the connecting portion such as the handrail of the handrail, and the continuity of the handrails on both sides cannot be obtained.

  Furthermore, since the joint of Patent Document 1 cannot fix the handrail connection portion to the support column, and the joint of Patent Document 2 cannot be used for the handrail connection portion that is not connected to the support column, it lacks flexibility.

  The present invention has been made in view of the above points, and the problem is that the number of constituent members is small, the members can be easily connected to each other, and is flexible, that is, the handrail connecting portion is used as a support column. An object of the present invention is to provide a joint for a handrail or the like that can be used for either fixing or not connecting to a support.

In order to solve the above-described problems, the present invention provides a joint for joining handrails and the like attached to the upper end of a support column, and two center side joint members connected to each other so as to be relatively rotatable around a vertical axis at one end. The two center side joint members are penetrated in the vertical shaft, and one end portion is horizontal at the other end of each of the two center side joint members. It consists of two end side joint members that are rotatably connected around the axis and whose other end is connected to a handrail or the like, and the shaft member is penetrated downward from above by the two center side joint members. that has a shaft portion, its shaft portion, the hole screwing the penetrable screwed to the bottom of the strut connecting member of an inverted cup shape is fixed to the upper end of the strut from its lower end portion is formed It is characterized by.
With the above configuration, the two center-side joint member, by fixing the screws to the lower end portion of the shaft member is penetrated from above to be inseparably linked. And it can be set as arbitrary connection angles by relatively rotating around the vertical axis. Each of the two end side joint members can be rotated about the horizontal axis with respect to the central side joint member adjacent to the two end side joint members to have an arbitrary connection angle.

When using this joint in a manner not linked to the strut is stopped screwing the set screw into the hole of the other end portion of the shaft member. When this joint is used in a mode of connecting to a support, a set screw penetrating a support connecting member attached to the upper end of the support is screwed into the hole at the other end of the shaft member.

According to the present invention, the joint includes the two center side joint members, the shaft member that holds them inseparably, and the two end side joint members, so that the number of constituent members can be reduced. These interconnected structures are simple, and therefore production costs can be reduced. Also, the left and right handrails can be moved horizontally by relative rotation around the vertical axis between the center side joint members and relative rotation around the horizontal axis at the connecting portion between the center side joint member and the end side joint member. Can be connected in any of a straight line shape, a bent shape having an arbitrary angle, and / or an inclined shape having an arbitrary angle.
In addition, the screw that penetrates the column connecting member is screwed into the shaft hole of the shaft member, so that the joint can be connected to the column even if the joint is connected to the column, or the screw is not screwed or screwed into the shaft hole. Even in the case of not, it can be used and has flexibility. In any case, since it is not necessary to add any other element to the joint, the member management is easy.

  In the present invention, a hole is formed between the two center side joint members from one side to the other side to prevent separation of both center side joint members and to screw a set screw into the other end. The shaft member is provided. The screw hole can be screwed with a set screw penetrating the column connecting member, screwed without setting the set screw through the column connecting member, or can not be screwed with the set screw.

Next, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a plan view of an embodiment of a handrail joint according to the present invention, FIG. 2 is a front view showing a cross section of the main part corresponding to FIG. FIG. 4 is a plan view of the first central joint member of FIG. 3, and FIG. 5 is a plan view of the second central joint member of FIG. 6 is a plan view of the shaft member of FIG. 3, FIG. 7 is a bottom view of the connecting member of the support column of FIG. 3, and FIG. 8 is a cross-sectional view of the main part in another use mode of the handrail joint according to the present invention. It is the shown front view.

  The joint for handrails and the like according to the present invention is roughly composed of two center side joint members 1 and 2, a shaft member 3, and end side joint members 4 and 5.

The two center side joint members 1 and 2 are both formed in a block shape and have a similar shape. That is, one central joint member 1 has a disc portion 11 at the center, a hemispherical portion 12 at one end, and a hemispherical portion 13 at the other end. And hemispherical part 12 has plane 12a which exists on the center line of disc part 11, and hemispherical part 13 has plane 13a which exists on the center line of disc part 11, plane 12a and plane 13a One is in a positional relationship rotated 90 degrees around the center line of the disk part 11 from the other. Further, a cylindrical convex portion 12b centering on a straight line orthogonal to the flat surface 12a of the hemispherical portion 12 is formed, and a hole 12c penetrating the hemispherical portion 12 is formed at the center of the convex portion. Furthermore, a screw hole 12d having a center line parallel to the axis of the hole 12c is provided on the end face of the protrusion 12b at a position symmetrical with respect to the center line of the protrusion. Further, the hemispherical portion 13 is formed with a screw through hole 13b penetrating in a direction orthogonal to the flat surface 13a.

  The other central joint member 2 has a disc portion 21 at the center, an annular portion 22 at one end, and a hemispherical portion 23 at the other end. The annular portion 22 protrudes substantially at the center of the disc portion 21, and the inner diameter of the hole 22 a is substantially equal to the outer diameter of the convex portion 12 b of one central joint member 1. The hemispherical portion 23 has the same shape as the hemispherical portion 13 of the central joint member 1. The hemispherical portion 23 has a flat surface 23 a on the center line of the disc portion 21, and one of the plane and the center line of the hole 22 a of the annular portion 22 is 90 degrees around the center line of the disc portion 21 from the other. It is in a rotated positional relationship. Further, the hemispherical portion 23 is formed with a screw through hole 23b penetrating in a direction orthogonal to the flat surface 23a.

  The convex portion 12b of the hemispherical portion 12 of the central joint member 1 is fitted into the hole 22a of the annular portion 22 of the central joint member 2, so that the hole 22a of the annular portion 22 and the hole 12c of the convex portion 12b are common. It can rotate relatively around the axis.

  The shaft member 3 has a fixed portion 31 having an outer diameter substantially equal to the outer periphery of the upper end surface of the annular portion 22 of the center side joint member 2 and a shaft portion 32 extending downward from the center of the bottom surface of the fixed portion. The shaft portion 32 can be inserted into the hole 12 c of the hemispherical portion 12 of the center side joint member 1. A screw through hole 31 a is formed in the fixing portion 31 at a position corresponding to the hole 12 d of the convex portion 12 b of the center side joint member 1. Further, the shaft portion 32 is formed with a hole 32a that is open at the tip thereof and into which a set screw S3 described later can be screwed.

  With the above configuration, the convex portion 12b of the hemispherical portion 12 of the central joint member 1 is rotatably fitted in the hole 22a of the annular portion 22 of the central joint member 2, and the shaft of the shaft member 3 is inserted into the hole 12c of the convex portion 12b. The shaft member 3 is fixed to the central joint member 1 by inserting the portion 32 and screwing the screw S1 into the hole 12d of the convex portion 12b from the screw through hole 31a of the fixing portion 31 of the shaft member 3. Thereby, the center side joint member 1 and the center side joint member 2 are coupled to be rotatable about the axis of the shaft portion 32 of the shaft member 3 in a state where the annular portion 22 cannot be detached from the convex portion 12b. .

  In a preferred embodiment, in a state where the three members 1, 2, 3 are coupled, the curved surface of the hemispherical portion 12 of the central joint member 1, the outer peripheral surface of the annular portion 22 of the central joint member 2, The envelope surface with the curved surface of the fixed portion 31 of the shaft member 3 is formed to be spherical. As a result, even if the angle formed by the two center side joint members 1 and 2 is changed to any angle, the disc portions 11 and 21 of both the center side joint members 1 and 2, the annular portion 22, and the fixing portion 31 The gap between them is always kept constant, so that it is possible to prevent injury by pinching a fingertip or the like during angle adjustment work.

  The end side joint members 4 and 5 are both formed in a block shape and have the same shape. And hemispherical parts 41 and 51 are provided at one end, and cylindrical parts 42 and 52 are provided at the other end. The hemispherical portions 41 and 51 have the same shape as the hemispherical portions 13 and 23 of the center side joint members 1 and 2 and have planes 41a and 51a passing through the center lines of the cylindrical portions 42 and 52, respectively. The holes 41b and 51b are provided so as to pass through in a direction orthogonal to the end or closed at one end. Moreover, the cylindrical parts 42 and 52 have end surfaces 42a and 52a orthogonal to the axial center thereof, and handrail connecting members 6 and 7 projecting in the opposite direction to the hemispherical parts 41 and 51 are fixed to the centers of the end surfaces. .

With the above configuration, the end side joint members 4 and 5 are connected to the center side joint members 1 and 2 in the same manner. That is, the flat surface 13a of the hemispherical part 13 of the central joint member 1 and the flat surface 41a of the hemispherical part 41 of the end side joint member 4 are abutted, and the screw S2 penetrating through the hole 13b of the hemispherical part 13 is inserted into the hemispherical part 41. The center side coupling member 1 and the end side coupling member 4 are connected to be rotatable about the axis of the screw S2. Similarly, the flat surface 23a of the hemispherical part 23 of the center side joint member 2 and the flat surface 51a of the hemispherical part 51 of the end side joint member 5 are abutted with each other, and a screw S2 penetrating through the hole 23b of the hemispherical part 23 is screw 51 holes 51b, it is rotatably connected to the central side joint member 2 and the end-side joint member 5 about the axis of the screw S2.

The handrail connecting members 6 and 7 are connected to the handrails 101 and 102 by inserting into the hollow portions of the handrails 101 and 102 and screwing screws 103 and 104 penetrating from the side surfaces of the handrail connecting members 6 and 7. There is a size that matches the cross-sectional shape of the handrails 101 and 102 and is fixed.

The shaft centers of the screws S2 and S2 and the shaft center 32 of the shaft member 3 are perpendicular to each other. In this way, this joint connects the left and right handrails 101 and 102 in FIG. 1 along (a) a straight line perpendicular to the axis of the shaft portion 32 of the shaft member 3, that is, along a horizontal straight line, (B) connecting along two horizontal straight lines that intersect at a certain angle in the axial center of the shaft portion 32 of the shaft member 3; (c) in (a) or (b) above, in the same direction or in different directions. Can be connected with an inclination angle.

FIG. 2 shows an example in which this joint can be connected to the support column 105. That is, in FIGS. 2 and 3, reference numeral 106 denotes a column connecting member formed in a cup shape in section, which is fitted to the upper end portion of the hollow portion of the column 105 and fixed by the screw 107. The member 106 is formed with a hole 106a that allows the screw S3 to pass through at the upper end thereof, and a hole 106b that is provided in the peripheral wall.
Thus, before attaching to the column 105, the screw S3 is passed through the upper end of the column coupling member 106, and the screw is screwed into the hole 32a of the shaft portion 32 of the joint shaft member 3 so that the shaft member 3 becomes the column coupling member 106. After that, the column connecting member 106 is fitted into the column 105, and the screw 107 is screwed into the hole 106b from the side surface of the column and fixed.

  On the other hand, when this joint is not connected to the support column, a set screw S3 is screwed into the hole 32a of the shaft portion 32 of the joint shaft member 3 as illustrated in FIG. The screw S3 in this case is not particularly required, and if it is screwed in, injury due to the opening edge of the hole 32a is prevented, and rainwater enters the hole 32a and corrosion is prevented from proceeding.

In the above implementation, the disk portion 11 and 21 of the center-side joint member 1, the cylindrical portion 42 and 52 of the end-side joint member 4 and 5 have the same diameter, the center-side joint member 1 hemispherical portion 12 of the fixing portion 31 of the center-side joint member 2 of the annular portion 22 and the shaft member 3 forms an envelope surface of the outer peripheral surface and the similarity of a sphere having a diameter approximately equal to the diameter of the disc portion 11 and 21 The hemispherical portion 13 of the central joint member 1 and the hemispherical portion 41 of the end side joint member 4 are brought into contact with the flat surfaces 13a and 41a and have substantially the same appearance as the cylindrical portion 42. The hemispherical portion 23 of the joint member 2 and the hemispherical portion 51 of the end-side joint member 5 are brought into contact with the flat surfaces 23a and 51a and have substantially the same appearance as the cylindrical portion 42, that is, the same appearance as the handrails 101 and 102. So that the whole joint can be If it gives the viewer an integral continuous feeling.

  Although the case where the joint according to the present invention is applied to the connection of the handrail has been described above, the present invention can be widely applied to the case where the left and right members similar to the handrail made of a rod or a tube are generally connected. .

The top view in the usage condition of the joint for handrails etc. which concerns on this invention. The front view which showed the principal part by the cross section corresponding to FIG. 1 in the state connected with the support | pillar. The partial cross-section exploded front view mainly of a center side joint member and a shaft member. The top view of the 1st center side coupling member of FIG. The top view of the 2nd center side coupling member of FIG. The top view of the shaft member of FIG. The bottom view of the connection member of the support | pillar of FIG. The front view which showed the principal part in the cross section in the other usage condition of joints for handrails, etc. which concern on this invention.

1, 2 Central joint member 11, 21 Disc part 12, 13, 23 Hemispherical part 12c Hole 22 Annular part 3 Shaft member 31 Fixed part 32 Shaft part 32a Hole 4, 5 End side joint member 41, 51 Hemispherical part 42 , 52 Cylindrical part

Claims (1)

In a joint that joins handrails and the like attached to the upper end of the column, two central joint members that are connected to each other so as to be relatively rotatable around a vertical axis at one end, and the two central joint members are connected to each other. A shaft member that is penetrated in the vertical shaft and prevents separation of both central joint members, and one end portion of each of the two central joint members is rotatably connected around a horizontal axis, and the other end parts consists the two ends side joint member connected to the handrail or the like, wherein the shaft member has a shaft portion that will be penetrating downwardly from the upper side to the two central side joint member, the axial portion Is a joint for a handrail or the like, wherein a hole for screwing a set screw that can be penetrated is formed from the lower end portion to the bottom portion of the inverted cup-shaped column connecting member fixed to the upper end portion of the column.

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