JPH11287217A - Connecting joint and connecting structure using it - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the number of parts and assembly man-hours by providing a joint base body, which forms a facing part rotationally around a connection shaft, and a projection part in each of two split joints and inserting a longitudinal bar connection cylinder into the projection rotationally by means of a connection bolt. SOLUTION: In a split joint 1 constructed of hemispherical joint base body 10 and a projection part 11, a shaft hole 16 is bored in the base body 10, a facing part 13 concentric with the shaft hole 16 is formed on a cut port, and a screw hole 12 is cut in the projection part 11. Two split joints 1 are combined together freely rotationally by bringing the facing parts 13 into mutual contact and inserting a connecting shaft 5 into the shaft holes 16 with the projection parts 11 positioned coaxially in the opposite directions mutually. In assembly of the split joint 1 and a longitudinal bar connection cylinder 2 by a connection bolt 6, a connection cylindrical part 21 is fixed between a bolt head part 62 and the base body 10 if the projection part 11 tip part is designed in a dimension so as not to project into the connection part beyond the connection cylindrical part 21, while the connection cylindrical part 21 can be turned if the projection part 11 tip part is designed in a dimension so as to protrude to the connection part. Therefore, a body edge or a longitudinal bar can be bent linearly/horizontally and its inclination can be varied in the height direction, while the number of parts can be reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connection joint suitably used for connecting a rim of a handrail, a fence, or the like or a horizontal rail, and a connection structure using the joint.

[0002]

2. Description of the Related Art Conventionally, when a torso or a lateral rail such as a handrail or a fence is to be bent in a horizontal direction and is to be installed with a change in a height direction, two supports are required. The body edges and cross rails of the handrails and fences, etc., which have been set, are arranged little by little at different angles in the plane and height direction, or they are connected at the connection points of the body rails and fences such as handrails and fences It is necessary to prepare various kinds of exclusive joints corresponding to the angle of each part, which is complicated. Although a universal joint has been proposed as a method for solving these disadvantages, for example, Japanese Patent Application Laid-Open No. 8-120 is disclosed.
As described in Japanese Patent Publication No. 869, there is a disadvantage that the assembly is complicated and time-consuming due to the complicated structure and the large number of parts. , And its connection structure has been desired.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the prior art, and is not limited to the case where the hulls such as handrails and fences are installed in a straight line, as well as in the horizontal direction. In addition, even if the installation is to be performed with a change in the height direction, it can respond to changes in the plane and the angle in the height direction at the installation site, and the installation angle It is intended to provide a joint for a handrail or fence, such as a handrail or fence, composed of a small number of parts without preparing special parts due to the like, and a connection structure for a handrail or fence using the joint. is there.

[0004]

SUMMARY OF THE INVENTION A handrail or fence joint according to the present invention comprises two split joints connected by a connecting shaft, and a horizontal rail connecting cylinder connected to the split joint by connecting bolts. The split joint has a joint base forming a facing part that faces each other so as to be rotatable about a connecting shaft, and a protruding part protruding at one end of the joint base, and the connecting bolt is provided on the protruding part. A screw hole to be screwed in is engraved, and the crosspiece connecting tube is composed of a connecting tube portion and a connecting portion. The connecting tube portion is rotatably fitted to the projecting portion with the connecting bolt as an axis, and is connected to the connecting portion. Is designed such that the rim of a handrail or fence or the horizontal rail is inserted or fitted externally. The connection structure in the present invention refers to a structure which is configured by connecting a trunk edge and a horizontal rail via the joint.

[0005] The connecting joint of the present invention has two split joints of the same shape.

Further, in the connecting joint according to the present invention, one of the two split joints is fixed to a support via a connecting tool.

Further, in the connection joint of the present invention, a connection hole is provided in a connection portion of the crosspiece connection tube.

Further, the connecting joint of the present invention is provided with an insert block having a diameter slightly smaller than the inner diameter of the connecting tube inside the connecting portion of the connecting tube.

Further, in the connecting joint of the present invention, the insert block is rotatably fixed to the projecting portion of the split joint via a connecting bolt for connecting the horizontal rail connecting cylinder, and the inner wall of the horizontal rail connecting cylinder and the insert block are fixed. At the end of the horizontal rail such as a tubular handrail or fence inserted between the outer walls of the insert block, a through hole is provided, and a groove portion facing the through hole is excavated in the circumferential direction of the outer wall of the insert block. The connection hole of the connection cylinder is aligned with the groove.

Further, the connecting structure of the present invention comprises two split joints connected by a connecting shaft, and a crosspiece connecting tube connected to the split joint by a connecting bolt, and the two split joints are connected. A joint base forming a facing part that faces each other so as to be rotatable about an axis, and a protrusion that protrudes from one end of the joint base, and a screw into which the connection bolt is screwed. A hole is engraved, the horizontal rail connecting cylinder is composed of a connecting part and a connecting part, and the connecting cylindrical part is rotatably fitted into the protruding part with the connecting bolt as an axis, and a handrail, a fence, etc. Each of the rails and fences is connected rotatably in the horizontal and vertical directions by a connecting joint in which the body edge and the horizontal rail are fitted or fitted externally.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an exploded perspective view of one embodiment of the connection joint of the present invention, and FIG. 2 is an exploded sectional view of FIG.

In FIG. 1, reference numeral 1 denotes a split joint. The split joint 1 includes a hemispherical joint base 10 and a protruding portion 11 protruding from one end of the joint base 10. A shaft hole 16 is formed in the joint base 10 along the rotation axis, and a facing portion 13 is formed on the cut end so as to be arranged in a concentric development of the shaft hole 16. A screw hole 12 is formed in the protrusion 11 in the same direction as the protrusion direction. Split joint 1
The two contact surfaces 13 contact each other, and the shaft holes 16
And the connecting shaft 5 is inserted through and rotatably combined. The protrusion 11 protruding from one end of the joint base 10 has two protrusions.
When two split joints 1 are combined, they are preferably coaxial when positioned in opposite directions.

The facing portion 13 of the split joint 1 is formed in two concentric circles in FIGS. 1 and 2, but may be one or three or more, and may be continuous on the concentric circles. It may be done or divided. Furthermore, facing part 1
The surface of No. 3 may be smooth or may have fine irregularities.

The split joint 1 is made of a metal such as aluminum or zinc or a reinforced plastic such as an engineering plastic.

On the other hand, when the split joint 1 and the horizontal rail connecting tube 2 are combined, the length of the distal end of the protruding portion 11 does not protrude from the connecting cylindrical portion 21 of the horizontal rail connecting tube 2 into the connecting portion 22. Then, the connecting cylinder 6 is screwed into the screw hole 12 so that the connecting cylinder 21 is fixed between the bolt head 62 of the connecting bolt 6 and the joint base 10, and the distal end of the protruding portion 11 is moved sideways. When the length is set so as to protrude from the connecting tube portion 21 of the beam connecting tube 2 into the connecting portion 22, the connecting bolt 6 is inserted into the screw hole 1.
2, the connecting tube portion 21 of the crossbar connecting tube 2 is rotatable without being fixed to the joint base 10.

Further, as the material of the crossbar connecting tube 2, similarly to the split joint 1, a metal such as aluminum or zinc or a reinforced plastic such as engineering plastic is used.

Further, the split joint 1 is shown in FIGS.
As shown in (c), a pin-shaped projection 14 and an arc-shaped long groove 15 centered on the connecting shaft 5 of the split joint 1 are provided in, for example, the mutually facing portions 13 of the two split joints 1 so that the split joint 1 is formed. Combined with each other, as shown in FIG.
When the and the arc-shaped long grooves 15 are respectively combined, the turning angle of the two split joints 1 may be regulated by setting the length of the long grooves 15, and in this case, the assembled joint of the present invention is used. It is preferable to prevent the two split joints 1 from rotating during transportation of the vehicle and to prevent the lateral rail connecting cylinders 2 from contacting each other and causing damage.

The joint of the present invention has a connecting shaft 5
, That is, the angle formed by the rims of the two handrails, fences, etc. and the horizontal rail, is about 80 ° to 280 °, depending on the shape of the horizontal rail connecting tube 2.

Next, the state of use of the joint of the present invention is shown in FIG.
(C). FIG. 4A shows an example in which the bar 4 is externally fitted to and connected to the horizontal rail connecting tube 2. The connecting hole 22 in which a female screw is engraved in the connecting portion 22 of the horizontal rail connecting tube 2 is shown. 4 (b), (c) and FIG. 4 (b) show a state of being fixed by a fixing screw 73 through a stopper hole 42 provided at an end of the bar 4.
Is an example in which the crosspiece 4 is inserted into the connecting portion 22 of the crosspiece connecting tube 2 and is connected to the crosspiece. (B) is connected to an end of the crosspiece 4 through a connection hole 23 in which a female screw is formed. Screw in the crimp screw 71,
This is an example in which the end of the bar 4 is pressed and fixed.
(C) is an example in which a wood screw 74 is to be screwed into the end of the bar 4 from the flat connection hole 23 provided in the connection part 22 and fixed.

As described in detail above, the connection joint of the present invention
Since the rotation of the split joint 1 itself and the rotation of the joint between the split joint 1 and the crosspiece connecting tube 2 are performed at right angles to each other, the structures such as handrails and fences to which the split joint 1 is applied are horizontal and high. It can be freely installed in the direction of the vertical direction as shown in FIG.

By the way, the example in which the two split joints combined by the connecting shaft are the same has been described with reference to FIGS. 1 to 4, but the two split joints may have different shapes. An example will be described with reference to FIGS.

FIG. 6 is an exploded sectional view showing another embodiment of the connecting joint of the present invention, and FIG. 7 is a partial perspective view of a handrail or fence structure using the connecting joint of FIG. In FIG. 6, the lower split joint 1a of the two split joints has
2 is formed and fixed to the connecting surface 93 of the connecting tool 91, and the lower end of the connecting shaft 5 joining the split joints 1 and 1a is extended to a nut hole 94 provided in the connecting tool 91, The two split joints 1 and 1a and the connecting tool 91 are 1
It is axially mounted on the connecting shaft 5. Further, the connecting tool 91 is fixed to a bracket 96 via a hinge bolt 95, and the bracket 96 is attached to a mounting bolt 97 that penetrates the column 8.
It is fixed by.

In the structure assembled in this manner, such as the handrail 7 fence shown in FIG. 7, the bending in the horizontal direction corresponds to the rotation of the two split joints, and the bracket 96 and the connector 9
The structure is such that it can be handled by one rotation.

Next, still another embodiment of the connecting joint of the present invention will be described with reference to FIGS. FIG. 8 is an exploded perspective view showing a component configuration, FIG. 9 is an exploded sectional view showing the same component configuration, and FIG. 10 is an assembled cross-sectional view.

In this embodiment, a connecting bolt 61 screwed into a screw hole 12 formed in the projection 11 of the split joint 1
The insert block 3 is interposed between the bolt head 62 and the protruding end 17 of the protruding portion 11, and the connecting bolt 61 that has passed through the block through hole 32 provided at the center of the insert block 3 is tightened. The protrusion 11 of the split joint 1 and the insert block 3 are integrally formed.

Therefore, the rim of the handrail, fence, or the like, or the horizontal rail, here the tubular rail 4 is connected to the connecting portion 22 of the horizontal rail connecting cylinder 2.
In the state where it is fitted in, the bar 4 and the horizontal bar connecting tube 2 are rotatable about the connecting bolt 61 as an axis, so that in the assembling stage, the connecting structure of the connecting joint corresponds to the horizontal and height installation conditions. Then, the split joints 1 and 1 and the bar 4 of the connecting joint are rotated for fine adjustment.

A through hole 41 is provided near the end of the tubular beam 4.
And the insert block 3 has the through holes 4
A groove 31 in the circumferential direction is excavated relative to 1, and a connection hole 23, which is a screw hole corresponding to the position of the groove 31, is engraved on the side surface of the crosspiece connecting tube 2, and is fixed to the connection hole 23. Screw 72
Is screwed into the groove 31 of the insert block 3 to fix and fix it after fine adjustment, and in some cases, to the tube wall of the bar 4 opposite to the through hole 41 of the bar 4. The crimping screw 71 is screwed through the connection hole 23 to be pressed and fixed, so that the crosspiece 4 can be fixed in a well-balanced manner inside the fitting of the crosspiece connecting tube 2.

[0028]

According to the joint for connection of the present invention, the following effects are exhibited by the above structure. That is, the connection joint of the present invention includes two split joints combined by a connection shaft, and a horizontal rail connection tube connected to the split joint by a connection bolt, and the two split joints are centered on the connection shaft. It has a joint base forming a facing part that faces each other so as to be rotatable, and a protrusion protruding from one end of the joint base, and a screw hole into which the connection bolt is screwed is formed in the protrusion. The horizontal tube connecting tube is composed of a connecting tube portion and a connecting portion, and the connecting tube portion is rotatably fitted into the protruding portion with the connecting bolt as an axis, and the connecting portion has a body edge such as a handrail or a fence. Since the crosspiece is inserted or fitted externally, each protruding part protruding from the assembled split joint is rotated so that the angle can be adjusted, and each protruding part and the crosspiece connecting cylinder into which they are fitted are separated. It is possible to rotate in the direction perpendicular to the rotation of the joint, so the rim of a handrail, fence, etc. Placing the rungs aligned, nor be bent in the horizontal direction, in addition it is possible also freely be given a change in slope in the height direction, less assembling steps also the number of parts is reduced.

Further, when the two split joints have the same shape, the connecting joint of the present invention has a reduced number of parts, is easy to assemble, and has a simpler appearance.

Further, in the connection joint according to the present invention, when one of the two split joints is fixed to a support via a connection tool, a torso rim such as a handrail or a fence or a horizontal rail is fixed to the support. In this portion, the horizontal rails are connected to each other, and the force transmitted from the horizontal rail to the connecting portion can be directly transmitted to the column.

Further, in the joint for connection of the present invention, when a connecting hole is provided at a connecting portion of the horizontal rail connecting cylinder, the horizontal rail is connected to a horizontal rail when connecting a trunk or a horizontal rail such as a handrail or a fence. The horizontal rail is fixed by screws through the connection holes so as to prevent looseness in the connection portion of the connection tube or rotation after installation, and secure connection is made.

Further, the connecting joint according to the present invention is characterized in that, when an insert block having a diameter slightly smaller than the inner diameter of the connecting portion is provided inside the connecting portion of the horizontal rail connecting tube, the rim of a tubular handrail or fence is provided. And the horizontal rail is inserted and the force applied to the horizontal rail is reliably transmitted to the joint body via the insert block, and a firm connection is made.

Further, in the connecting joint of the present invention, the insert block is rotatably fixed to the projecting portion of the split joint via a connecting bolt for connecting the horizontal rail connecting cylinder, and the inner wall of the horizontal rail connecting cylinder and the insert block are fixed. A through hole is provided at the end of the tubular handrail or the horizontal rail inserted between the outer walls, and a groove corresponding to the through hole is excavated in a circumferential direction of the insert block outer wall, and a connection hole of the horizontal rail connecting tube is provided. Is provided so as to be aligned with the groove portion, a tubular handrail, a fence or the like of a fence or the like is inserted into the joint and the force applied to the lateral rail is reliably transmitted to the joint body via the insert block. A crimping screw is pressed from the connection hole of the horizontal rail connection cylinder to the rim of the tubular handrail or fence or the side of the horizontal rail to fix the horizontal rail to make it firm, and the connection hole of the horizontal rail connection cylinder Screw a set screw into the tubular handrail or cross rail. By press-fitting and fixing to the groove excavated in the insert block through the through hole provided in the part, the insert block and the body rim and side rails such as handrails and fences are fixed together and there is no rattling, and furthermore, A firm connection joint that does not rotate after installation is configured.

Further, the connecting structure of the present invention comprises two split joints joined by a connecting shaft, and a crosspiece connecting tube connected to the split joint by connecting bolts, and the two split joints are connected by a connecting shaft. A joint base forming a facing portion that is rotatably opposed to each other around a center, and a protrusion protruding from one end of the joint base, and a screw hole into which the connection bolt is screwed into the protrusion. The horizontal rail connecting tube is composed of a connecting tube portion and a connecting portion. The connecting tube portion is rotatably fitted to the projecting portion with the connecting bolt as an axis, and the connecting portion is a body such as a handrail or a fence. If the rails or fences are connected rotatably in the horizontal and vertical directions by connecting joints whose edges or crossbars are inserted or fitted externally, handrails or fences Not only when the torso and crossbar are installed in a straight line, but also Even in the case of installing in response to changes in the height direction, it can be installed while adjusting the angle using the same parts, so that handrails that can freely respond to changes in the plane and height direction with a small number of parts The joint of the fence can be supplied, and the installation conditions such as the plane and the angle in the height direction at the installation site can be coped with on the spot.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing one embodiment of the present invention.

FIG. 2 is an exploded sectional view showing one embodiment of the present invention.

3A and 3B are explanatory views of one embodiment of the present invention, wherein FIG. 3A is a perspective view of parts, FIG. 3B is an operation explanatory view, and FIG. 3C is a sectional view.

FIG. 4 is a sectional view according to an embodiment of the present invention,
(A) shows the fixing of the tubular beam, and (B) and (C) show different embodiments.

FIG. 5 is a perspective view of a handrail structure installed by applying the present invention.

FIG. 6 is an exploded sectional view showing another embodiment of the present invention.

FIG. 7 is a partial perspective view illustrating an installation state of the embodiment of FIG. 6;

FIG. 8 is an exploded perspective view showing a component configuration of another embodiment of the present invention.

FIG. 9 is an exploded cross-sectional view showing a component configuration of another embodiment shown in FIG.

FIG. 10 is an assembled sectional view of another embodiment shown in FIG. 8;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1, 1a Split joint 10 Joint base 11 Projection part 12 Screw hole 13 Facing part 14 Pin-shaped projection 15 Long groove 16 Shaft hole 2 Horizontal crosspiece connection cylinder 21 Connection cylinder part 22 Connection part 23 Connection hole 3 Insert block 31 Groove part 32 Block through hole 4 Crosspiece 41 Through Hole 5 Connecting Shaft 6, 61 Connecting Bolt 62 Bolt Head 71 Crimping Screw 72 Set Screw 8 Prop 91 Connecting Tool 92, 93 Connecting Surface 94 Nut Hole 95 Hinge Bolt 96 Bracket 97 Mounting Bolt

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁶ Identification code FI F16B 12/40 F16B 12/40 C

Claims (7)

[Claims] 1. A joint for connecting a torso edge or a horizontal rail such as a handrail or a fence, comprising: two split joints combined by a connecting shaft; and a horizontal rail connecting cylinder connected to the split joint by a connecting bolt. The two split joints each have a joint base forming a facing portion that faces each other so as to be rotatable about the connection shaft, and a protrusion protruding at one end of the joint base. Is provided with a screw hole into which the connection bolt is screwed, and the horizontal rail connection tube is composed of a connection tube portion and a connection portion, and the connection tube portion is rotatably fitted into the protruding portion with the connection bolt as an axis. A joint for connection, characterized in that a body edge or a horizontal rail such as a handrail or a fence is inserted or fitted into the connection portion. 2. The joint according to claim 1, wherein the two split joints have the same shape. 3. The connection joint according to claim 1, wherein one of the two split joints is fixed to the column via a connection tool. 4. The connection joint according to claim 1, wherein a connection hole is provided in a connection portion of the horizontal rail connection cylinder. 5. The connection according to claim 1, wherein an insert block having a diameter slightly smaller than the inner diameter of the connection portion is provided inside the connection portion of the horizontal rail connection cylinder. Fittings. 6. A tubular member which is rotatably fixed to a projecting portion of the split joint via a connecting bolt for connecting the horizontal rail connecting cylinder, and which is inserted between an inner wall of the horizontal rail connecting cylinder and an outer wall of the insert block. At the end of the handrail or horizontal rail, a through hole is provided, a groove facing the through hole is excavated in the circumferential direction of the outer wall of the insert block, and the connection hole of the horizontal rail connecting cylinder is aligned with the groove. The connection joint according to claim 5, wherein 7. A connecting structure for a trunk or a horizontal rail such as a handrail or a fence, comprising two split joints joined by a connecting shaft, and a horizontal rail connecting cylinder connected to the split joint by a connecting bolt. Consisting of
The two split joints each have a joint base forming a facing part that faces each other so as to be rotatable about a connection shaft, and a protrusion protruding from one end of the joint base. A screw hole into which a bolt is screwed is provided, and the horizontal rail connecting tube is composed of a connecting tube portion and a connecting portion. The connecting tube portion is rotatably fitted into the projecting portion with the connecting bolt as an axis, and is connected. By connecting joints that can be inserted or fitted with the rim of the handrail, fence, etc., in the part, the rails of individual handrails, fences, etc. are connected rotatably in the horizontal and vertical directions. A connection structure characterized by being made.