JP2018028348A - connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a connector having a simple and light-weight constitution.SOLUTION: This invention relates to a connector for use in connecting an outer surface of a first rod-like member with a cylindrical end part acting as a cylindrical end part of a second rod-like member. A pair of opposing plate parts have opposing surfaces oppositely spaced apart while being spaced to each other. A space holding part keeps a spacing between central parts at each of the opposing surfaces of the pair of opposing plate parts. There are provided a first side end part and a second side end part that are both side end parts of a pair of opposing plate parts, and the first side end part is constituted to be fixed to the first rod-like member while being press contacted with an outer surface of the first rod-like member under a state in which the outer surface of the first rod-like member is held, and the second side end part is constituted to be fixed to the second rod-like member while being press contacted with the inner surface of the second rod-like member under a state in which it is inserted into a cylindrical end part of the second rod-like member. In addition, a biasing mechanism is constituted to apply an external force directed to approach parts near the first side end part rather than the space holding part at the pair of opposing plate parts to each other.SELECTED DRAWING: Figure 5

Description

  The present disclosure relates to a connector.

  A connector for connecting one outer surface of two cylindrical rod-like members and the other end is known. Patent Document 1 discloses a connector including a pair of connector elements that are parts independent of each other. One end of each connector element in the axial direction is provided with a head provided with a gripping claw portion that presses against the outer surface of the rod-shaped member and a split surface, and the other axial end is inserted into the end of the rod-shaped member. A pressing portion having a cylindrical outer peripheral surface that is in pressure contact with the inner surface and a helical engagement surface is provided. Each connector element is arranged so that the split surfaces of the heads face each other, and are combined in a state where the helical engagement surfaces of the pressing portions are engaged. The connector is configured such that when a pair of connector elements are fastened by bolts and nuts, the gripping claws of each connector element approach each other while the outer peripheral surfaces of the pressing parts of each connector element are separated from each other. Has been.

  According to such a configuration, it is possible to connect one outer surface of the two rod-shaped members and the other end only by fastening one place of the connector with the bolt and nut. In addition, since the connecting force to the outer surface of one rod-shaped member and the connecting force to the inner surface of the other rod-shaped member are less likely to be biased, the connection force is suppressed from becoming insufficient or excessive.

JP 2014-84926 A

However, the connector of Patent Document 1 has a complicated structure and has a problem of becoming heavy.
An object of one aspect of the present disclosure is to provide a connector having a simple and lightweight configuration.

  One aspect of the present disclosure is a connector for connecting an outer surface of a first rod-shaped member and a cylindrical end portion that is a cylindrical end portion of a second rod-shaped member, and a pair of opposing plate portions, An interval holding unit and an urging mechanism are provided. A pair of opposing board part has the opposing surface which mutually opposes at intervals. The interval holding unit maintains the interval between the central portions of the opposing surfaces of the pair of opposing plate portions. The urging mechanism is a mechanism for applying an external force to the pair of opposed plate portions. Further, of the first side end portion and the second side end portion, which are the end portions on both sides of the pair of opposing plate portions, the first side end portion is in a state of sandwiching the outer surface of the first rod-shaped member. The second rod-like member is configured to be fixed to the first rod-like member by being pressed against the outer surface of the rod-like member, and the second side end portion is inserted into the cylindrical end portion of the second rod-like member. It is comprised so that it may fix to a 2nd rod-shaped member by press-contacting to the inner surface of a member. Further, the urging mechanism is configured to apply an external force in a direction in which the portions closer to the first side end than the interval holding portion in the pair of opposed plate portions are brought closer to each other to the pair of opposed plate portions.

  According to such a configuration, when an external force by the urging mechanism is applied to the pair of opposed portions, the first side end portions approach each other, and at the same time, the second side end portion is moved by the action of the interval holding portion. Separate from each other. As a result, the first side end is pressed against the outer surface of the first bar-shaped member, and the second side end is pressed against the inner surface of the second bar-shaped member. Such an action is realized by the pair of opposing plate portions, the interval holding portion, and the urging mechanism. Therefore, it is possible to provide a connector having a simple and lightweight configuration.

  In one aspect of the present disclosure, the end portions on both sides of the interval holding portion may be connected to the central portion of each of the opposing surfaces of the pair of opposing plate portions. Moreover, a pair of opposing board part and space | interval holding | maintenance part may be comprised as a single component. According to such a configuration, it is possible to provide a connector having a simpler configuration as compared with the case where the pair of opposed plate portions are configured as independent components.

  In one embodiment of the present disclosure, the interval holding unit may be plate-shaped. According to such a structure, it becomes possible to stabilize the deformation | transformation aspect of a pair of opposing part by the external force by an urging | biasing mechanism being applied to a pair of opposing part.

  In one aspect of the present disclosure, the first side end, the second side end, and the interval holding unit may have a constant cross-sectional shape perpendicular to a specific direction. According to such a configuration, the connector can be manufactured by a relatively simple method.

  In one aspect of the present disclosure, the first side end portion may be a plate shape that is curved so that the tips of the pair of opposing plate portions face each other. Further, the second side end portion may have a flat plate shape in which each of the pair of opposed plate portions is arranged with a space therebetween. According to such a configuration, the curved plate-like first side end is pressed against the outer surface of the first bar-shaped member, and the flat plate-like second side end is pressed against the inner surface of the second bar-shaped member. Such an action is realized by the plate-like end portion. Therefore, it is possible to provide a connector having a strong coupling force while having a simple and lightweight configuration.

  Another aspect of the present disclosure is a connector for connecting one outer surface and two other end portions of two cylindrical rod-shaped members, and includes a pair of opposing plate portions, a spacing holding portion, and an urging mechanism. And. A pair of opposing board part has the opposing surface which mutually opposes at intervals. The interval holding unit maintains the interval between the central portions along the first direction on the opposing surfaces of the pair of opposing plate portions. The urging mechanism applies an external force to the pair of opposing plate portions. The outer surface of the rod-shaped member has a plurality of grooves along the central axis of the rod-shaped member. The inner surface of the rod-shaped member has a plurality of protrusions along the central axis of the rod-shaped member at a position on the back side of the plurality of grooves. Of the first side end and the second side end that are the ends on both sides of the pair of opposing plate portions along the first direction, the first side end portion is the tip of each of the pair of opposing plate portions. The plate is curved so as to face each other, and is configured to be fixed to the rod-like member by being pressed into the outer surface of the rod-like member while being inserted into the plurality of grooves and sandwiching the outer surface of the rod-like member. . The second side end portion is a flat plate shape in which each of the pair of opposed plate portions is arranged with a space between each other, and is pressed into contact with the plurality of protrusions in a state of being inserted into the end portion of the rod-shaped member. It is comprised so that it may be fixed to a member. The end portions on both sides of the interval holding portion along the second direction orthogonal to the first direction are connected to the center portion along the first direction on each of the opposing surfaces of the pair of opposing plate portions. The interval holding portion has a plate shape that intersects with the opposing surfaces of the pair of opposing plate portions along an intersecting line along a third direction orthogonal to both the first direction and the second direction. The pair of opposing plate portions and the interval holding portion are configured as a single component. The urging mechanism is configured to apply an external force in a direction to bring the portions closer to the first side end portion closer to each other than the interval holding portion in the pair of opposed plate portions to the pair of opposed plate portions.

  According to such a configuration, when an external force by the urging mechanism is applied to the pair of opposed portions, the first side end portions approach each other, and at the same time, the second side end portion is moved by the action of the interval holding portion. Separate from each other. As a result, the first side end is in pressure contact with the outer surface of one rod-shaped member, and the second side end is in pressure contact with the inner surface of the other rod-shaped member. Such an action is realized by a pair of opposing plate portions and interval holding portions configured as a single component, and an urging mechanism. Therefore, it is possible to provide a connector having a simple and lightweight configuration. Moreover, since the space | interval holding | maintenance part is plate shape which cross | intersects each opposing surface of a pair of opposing board part in the intersection line along a 3rd direction, it is because the external force by an urging | biasing mechanism is applied to a pair of opposing part It becomes possible to stabilize the deformation | transformation aspect of a pair of opposing part. And since the outer surface of a rod-shaped member has a some groove | channel and the inner surface of a rod-shaped member has a some convex shape, the shape of a 1st side edge part and a 2nd side edge part can be made simple and small.

  In one aspect of the present disclosure, the plate thickness of the interval holding unit may be smaller than the plate thickness of each of the pair of opposed plate units. According to such a configuration, it is possible to easily displace the first side end and the second side end by applying an external force from the urging mechanism to the pair of opposing portions.

  In one aspect of the present disclosure, the first side end, the second side end, and the interval holding unit may have a constant cross-sectional shape perpendicular to the third direction. According to such a configuration, the connector can be manufactured by a relatively simple method.

  One aspect of the present disclosure may be four ridges in which the plurality of ridges are arranged at equal intervals along the circumferential direction of the inner surface of the rod-shaped member. According to such a configuration, both sides along the third direction of the second side end portion can be configured to be in pressure contact with the protrusions, respectively, while being the flat plate-like second side end portion. Become. For this reason, it is possible to provide a connector having a strong coupling force.

  In one embodiment of the present disclosure, the biasing mechanism may include a bolt and a nut that can be screwed to the bolt. Moreover, a pair of opposing board part may have a through-hole for inserting the axial part of a volt | bolt in the side of the 1st side edge part among the both sides which pinched | interposed the space | interval holding | maintenance part, respectively. According to such a configuration, it is possible to provide an urging mechanism that applies an external force to the pair of opposed plate portions with a simple configuration.

  In one aspect of the present disclosure, at least one of the bolt head and the nut may be polygonal. Moreover, a pair of opposing board part may have a rib for restrict | limiting the insertion amount of the 2nd side edge part with respect to a rod-shaped member, and restrict | limiting rotation of the head of a bolt or a nut. According to such a configuration, it is possible to provide a connector having a rib having two functions of positioning the pair of opposed plate portions and the rod-shaped member and restricting the rotation of the bolt head or nut.

  In one aspect of the present disclosure, the inner surface of the first side end portion and the outer surface of the second side end portion may have irregularities. According to such a structure, the connection force to the rod-shaped member by the 1st side edge part and the 2nd side edge part can be improved.

It is a disassembled perspective view of the pipe assembly in embodiment. It is sectional drawing of the connector main body and pipe in embodiment. It is a side view of the pipe assembly in an embodiment. It is a side view of the connector main part in an embodiment. It is sectional drawing of the pipe assembly in embodiment. It is sectional drawing of the connector main body to which the external force in embodiment was applied. It is sectional drawing of the pipe assembly in a modification.

Hereinafter, exemplary embodiments of the present disclosure will be described with reference to the drawings.
[1. Constitution]
A pipe assembly 100 shown in FIG. 1 is an assembly having a pipe 1, a pipe 2, and a connector 10. The pipe 1 and the pipe 2, more specifically, the outer surface of the pipe 1 and the end of the pipe 2 are connected to each other in a T shape by the connector 10. In each figure, for convenience of explanation, an X axis, a Y axis, and a Z axis, which are axes that are determined with reference to the connector 10 and are orthogonal to each other, are illustrated.

  The pipe 1 is made of metal, specifically, aluminum or aluminum alloy, and is a substantially cylindrical pipe. As shown in FIG. 2, the outer surface of the pipe 1 has a plurality of grooves 11. Each of the plurality of grooves 11 is provided from one end to the other end on the outer surface of the pipe 1 along the central axis 1A. Moreover, the inner surface of the pipe 1 has a plurality of protrusions 12 that are protrusions extending in the surface direction at positions on the back side of the plurality of grooves 11. Each of the plurality of protrusions 12 is provided from one end to the other end of the inner surface of the pipe 1 along the central axis 1A, and protrudes toward the central axis 1A. The inner surface of the pipe 1 has one thin portion 12 </ b> A having a small plate thickness on each side of each of the plurality of protrusions 12. The thin portion 12A is provided from one end to the other end of the inner surface of the pipe 1 along the central axis 1A. A plurality of grooves 11 and a plurality of protrusions 12 are arranged at equal intervals along the circumferential direction of the pipe 1.

  As shown in FIG. 3, the pipe 2 is also made of metal, specifically aluminum or aluminum alloy, and is a substantially cylindrical pipe. The cross section of the pipe 2 along the direction orthogonal to the central axis 2A has the same shape and size as the cross section of the pipe 1 along the direction orthogonal to the central axis 1A. That is, the pipe 2 has four grooves 21, four ridges 22, and one thin portion 22 </ b> A on each side of each ridge 22 at equal intervals along the circumferential direction of the pipe 2, similar to the pipe 1. Is provided. The pipe 2 can be different in length from the pipe 1.

  The connector 10 is a component for connecting the outer surface of the pipe 1 and the end of the pipe 2. As shown in FIG. 2, the connector 10 includes a connector main body 3, bolts 4, and nuts 5.

  The connector body 3 is a metal part, specifically, an aluminum or aluminum alloy part, and is a single part having a substantially H-shape when viewed from the Z-axis direction. The cross-sectional shape perpendicular to the Z-axis direction of the connector body 3 is constant except for a through-hole 313 described later. The connector main body 3 includes a pair of opposing plate portions 31 and a spacing holding portion 32.

  Each of the pair of opposed plate portions 31 is a plate-like portion having a substantially constant plate thickness as viewed from the Z-axis direction. As shown in FIG. 4, each of the pair of opposing plate portions 31 has a rectangular shape when viewed from the Y-axis direction. Returning to FIG. 2, each of the pair of opposed plate portions 31 includes opposed surfaces 310 that are opposed to each other with a space therebetween. Of the C-shaped end portion 311 and the I-shaped end portion 312 which are the end portions on both sides of the pair of opposed plate portions 31 along the X-axis direction, the C-shaped end portion 311 is curved in a C shape, that is, a pair of opposed surfaces. It is a plate-like end portion that is curved so that the tips of the plate portions 31 face each other. As shown in FIGS. 2 and 5, the C-shaped end portion 311 is inserted into two adjacent grooves 11 out of the four grooves 11 and sandwiches the outer surface of the pipe 1, and is formed on the outer surface of the pipe 1. It is comprised so that it may fix to the pipe 1 by press-contacting. The I-shaped end portion 312 is an I-shaped, that is, a flat plate-shaped end portion in which each of the pair of opposed plate portions 31 is disposed with a space therebetween. As shown in FIG. 3, the I-shaped end portion 312 is configured to be fixed to the pipe 2 by being pressed against the four protrusions 22 while being inserted into the end portion of the pipe 2.

  The space | interval holding | maintenance part 32 is a plate-shaped part provided between a pair of opposing board parts 31, specifically, a flat plate-shaped part. The space | interval holding | maintenance part 32 is comprised so that the space | interval of the center parts along the X-axis direction in each opposing surface 310 of a pair of opposing board part 31 may be maintained. Specifically, the end portions on both sides of the interval holding portion 32 along the Y-axis direction are connected to the center portions along the X-axis direction on the respective opposing surfaces 310 of the pair of opposing plate portions 31. Moreover, the space | interval holding | maintenance part 32 cross | intersects each opposing surface 310 of a pair of opposing board part 31 by the intersection line along a Z-axis direction. The plate | board thickness of the space | interval holding | maintenance part 32 is thinner than each plate | board thickness of a pair of opposing board part 31. FIG.

  A through hole 313 is provided on the side of the C-shaped end portion 311 among both sides of the pair of opposing plate portions 31 that sandwich the interval holding portion 32 along the X axis. The through hole 313 is a perfect circular hole for inserting a shaft portion 42 of the bolt 4 described later.

  The bolt 4 and the nut 5 are biasing mechanisms that bias the pair of opposed plate portions 31. The bolt 4 includes a head portion 41 and a shaft portion 42. The head 41 has a circular outer shape when viewed from the axial direction, and is provided with a hexagonal recess on the upper surface. The concave portion is configured such that a tool such as a hexagon wrench can be inserted. The outer shape of the nut 5 viewed from the axial direction is a polygonal shape, which is a hexagonal shape in this embodiment, and can be screwed into the shaft portion 42. Each of the two through holes 313 provided in the pair of opposed plate portions 31 has the same shape and size, and is designed to have a size that the head 41 and the nut 5 do not pass. The shaft portion 42 is inserted through the through hole 313. When the nut 5 is fastened to the shaft portion 42 inserted through the through-hole 313, the bolt 4 and the nut 5 have portions closer to the C-shaped end portion 311 than the interval holding portion 32 in the pair of opposing plate portions 31. An external force in the direction of approaching is applied to the pair of opposed plate portions 31. In FIGS. 2 and 5, the expedient bolt 4 and the nut 5 are shown in a side view, not a sectional view.

  Each of the pair of opposed plate portions 31 has one rib 314. As shown in FIG. 4, the rib 314 is provided along the Z-axis direction. As shown in FIG. 5, the rib 314 is closer to the C-shaped end 311 side than the interval holding portion 32 along the X-axis direction, and the distance from the C-shaped end 311 to the outer surface facing the rib 314 is The nut 5 is located at a location where the two surface widths are separated. That is, when the pair of opposing plate portions 31 is biased by screwing the bolt 4 and the nut 5, one of the two corresponding surfaces of the nut 5 faces the rib 314 in the C-shaped end portion 311. It is located in close proximity to the outer surface. The other surface is positioned so as to face and face the surface on the C-shaped end portion 311 side of the rib 314. Further, the surface on the I-shaped end 312 side of the rib 314 is configured to contact the end surface of the pipe 2 when the I-shaped end 312 is inserted into the pipe 2. That is, the rib 314 has a positioning function that restricts the amount of insertion of the I-shaped end 312 with respect to the pipe 2 and a function that restricts the rotation of the nut 5.

  The inner surface of the C-shaped end portion 311 has a contact portion 315, and the outer surface of the I-shaped end portion 312 has a contact portion 316. The abutting portion 315 and the abutting portion 316 are surface portions that are convex and concave along the X-axis direction, that is, a wavy shape in this embodiment. The contact portion 315 contacts the outer surface of the pipe 1 when the C-shaped end portion 311 is fixed to the pipe 1. The abutting portion 316 abuts on the protrusion 12 of the pipe 2 when the I-shaped end portion 312 is fixed to the pipe 2. The contact portion 315 and the contact portion 316 have a function of preventing slipping in fixing the C-shaped end portion 311 to the pipe 1 and fixing the I-shaped end portion 312 to the pipe 2.

  Next, a method for manufacturing the connector body 3 will be described. First, the extruded shape which is the connector main body 3 before the through hole 313 is provided is formed by extruding aluminum or an aluminum alloy. Then, the connector main body 3 is shape | molded by making the through-hole 313 open in an extrusion shape material.

  Next, a method for using the connector 10 will be described. First, the connector main body 3 so that the C-shaped end 311 is inserted into two adjacent grooves 11 of the four grooves 11 in the pipe 1 and the I-shaped end 312 is inserted into the end of the pipe 2. Thus, the connection position of the pipe 1 and the pipe 2 is provisionally determined. In this state, the shaft portion 42 of the bolt 4 is inserted into the two through holes 313, and the nut 5 is tightened from the tip of the shaft portion 42. Then, as shown in FIG. 6, an external force is applied to the pair of opposed plate portions 31 in such a direction that the C-shaped end portions 311 approach each other. At the same time, an external force is applied in such a direction that the I-shaped end portions 312 are separated from each other by the action of the interval holding portion 32. Accordingly, the C-shaped end portion 311 is pressed into the outer surface of the pipe 1 while being inserted into the two adjacent grooves 11 and sandwiching the outer surface of the pipe 1. Further, the I-shaped end 312 is in pressure contact with the inner surface of the pipe 2 while being inserted into the inner surface of the pipe 2. As a result, the C-shaped end 311 is fixed to the pipe 1 and the I-shaped end 312 is fixed to the pipe 2. In this way, the pipe 1 and the pipe 2 are connected in a T shape by the connector 10, and the pipe assembly 100 is configured.

[2. effect]
According to the embodiment detailed above, the following effects can be obtained.
(1a) When the nut 5 is fastened to the shaft portion 42 of the bolt 4 inserted through the through-hole 313, an external force is applied to the pair of opposed plate portions 31 so that the C-shaped end portions 311 approach each other. . At the same time, an external force is applied in the direction in which the I-shaped end portions 312 are separated from each other by the action of the interval holding portion 32. Accordingly, the C-shaped end portion 311 is pressed into the outer surface of the pipe 1 while being inserted into the two adjacent grooves 11 and sandwiching the outer surface of the pipe 1. Further, the I-shaped end 312 is in pressure contact with the inner surface of the pipe 2 while being inserted into the inner surface of the pipe 2. Such an action is realized by the connector main body 3, the bolt 4 and the nut 5, which are a single component having a substantially H-shape when viewed from the Z-axis direction. Therefore, the connector 10 having a simple and lightweight configuration can be provided.

  (1b) The space | interval holding | maintenance part 32 is plate shape which cross | intersects each opposing surface 310 of a pair of opposing board part 31 by the intersection line along a Z-axis direction. For this reason, when the external force by the volt | bolt 4 and the nut 5 is applied to a pair of opposing board part 31, it becomes easy to deform | transform a pair of opposing board part 31 in the aspect as if a Z axis | shaft is made into a rotating shaft. Therefore, the deformation | transformation aspect of a pair of opposing board part 31 can be stabilized.

  (1c) The C-shaped end portion 311 is inserted into two adjacent grooves 11 out of the four grooves 11 of the pipe 1 and presses against the outer surface of the pipe 1 while sandwiching the outer surface of the pipe 1. It is configured to be fixed to the pipe 1. The I-shaped end 312 is configured to be fixed to the pipe 2 by being pressed against the four protrusions 22 while being inserted into the end of the pipe 2. For this reason, the shape of the connector main body 3 can be made simple and small. In particular, the I-shaped end portion 312 can be pressed against the end portion of the inner surface of the pipe 2 by the four protrusions 22 even with a simple configuration of a flat plate shape. That is, for example, when the inner surface of the cylindrical pipe has no protrusions, the I-shaped end portion 312 has a small contact area with the inner surface of the pipe, and there is a concern that the coupling force is insufficient. For this reason, it is necessary to cope with the shape of the end of the connector main body along the inner surface of the pipe, that is, a semicircular shape. On the other hand, in the pipe 2 in the present embodiment, the four protrusions 22 and the two flat plate-like I-shaped end portions 312 are in pressure contact. Specifically, one flat plate portion of the I-shaped end portion 312 is in pressure contact with two of the four protrusions 22, and the other plate portion is in pressure contact with the remaining two protrusions 22. Therefore, it is not necessary to make the I-shaped end portion 312 into a complicated shape, and the connector 10 having a strong coupling force can be provided while having a simple and lightweight configuration. In particular, since the thin portions 22A are provided on both sides of each protrusion 22, it is possible to make it difficult for the I-shaped end portion 312 and the pipe 2 to interfere with each other.

  (1d) The end portions on both sides of the interval holding portion 32 along the Y-axis direction are connected to the center portion along the X-axis direction on each facing surface of the pair of opposed plate portions 31. Moreover, a pair of opposing board part 31 and the space | interval holding | maintenance part 32 are comprised as the connector main body 3 which is a single component. For this reason, the bias between the force with which the C-shaped end portion 311 presses against the outer surface of the pipe 1 and the force with which the I-shaped end portion 312 presses against the inner surface of the pipe 2 can be made difficult to occur. Moreover, compared with the case where a pair of opposing board part 31 and the space | interval holding | maintenance part 32 are comprised as a mutually independent component, not only a number of parts can be reduced but workability | operativity improves. As a result, the connector 10 having a simpler configuration can be provided.

  (1e) The cross-sectional shape perpendicular to the Z-axis direction of the connector body 3 is constant except for the through-hole 313 portion. For this reason, the connector main body 3 can be shape | molded by the simple method of opening the through-hole 313 in an extrusion shape material.

  (1f) The plate | board thickness of the space | interval holding | maintenance part 32 is thinner than each plate | board thickness of a pair of opposing board part 31. FIG. For this reason, when the external force by the volt | bolt 4 and the nut 5 is applied to a pair of opposing board part 31, both the C-shaped edge part 311 and the I-shaped edge part 312 can be made easy to displace. That is, when the plate thickness of the interval holding portion is thicker than the thickness of each of the pair of opposed plate portions, when an external force is applied to bring the C-shaped end portions closer to each other, the pair of opposed plate portions themselves Becomes easier to deform. In this case, the external force in the direction in which the I-shaped end portions are separated from each other is insufficient. On the other hand, in this embodiment, since the plate | board thickness of the space | interval holding | maintenance part 32 is thinner than each plate | board thickness of a pair of opposing board part 31, a deformation | transformation of a pair of opposing board part 31 itself is suppressed, and a C-shaped end Both the part 311 and the I-shaped end 312 can be easily displaced.

  (1g) Of the two corresponding surfaces of the nut 5, one surface is close to the outer surface facing the rib 314 in the C-shaped end portion 311 and the other surface is close to the surface on the C-shaped end portion 311 side of the rib 314. Positioned so as to face each other. That is, two corresponding surfaces of the nut 5 are positioned so as to be sandwiched between the C-shaped end portion 311 and the rib 314, and the rotation of the nut 5 is restricted. Further, the surface of the rib 314 on the I-shaped end portion 312 side is configured to contact the end surface of the pipe 2 when the I-shaped end portion 312 is inserted into the pipe 2. For this reason, the rib 314 can be provided with a positioning function that restricts the amount of insertion of the I-shaped end 312 into the pipe 2 and a function that restricts the rotation of the nut 5.

  (1h) The inner surface of the C-shaped end portion 311 and the outer surface of the I-shaped end portion 312 have a contact portion 315 and a contact portion 316 that have a wave shape along the X-axis direction. For this reason, the abutting portion 315 and the abutting portion 316 can have a function of preventing slipping in fixing the C-shaped end portion 311 to the pipe 1 and fixing the I-shaped end portion 312 to the pipe 2.

  In the present embodiment, the pipe 1 corresponds to an example of a first bar member, and the pipe 2 corresponds to an example of a second bar member. The bolt 4 and the nut 5 correspond to an example of an urging mechanism, the C-shaped end 311 corresponds to an example of a first side end, and the I-shaped end 312 corresponds to an example of a second side end. . The X-axis direction corresponds to an example of the first direction, the Y-axis direction corresponds to an example of the second direction, and the Z-axis direction corresponds to an example of the third direction.

[3. Other Embodiments]
As mentioned above, although embodiment of this indication was described, it cannot be overemphasized that this indication can take various forms, without being limited to the above-mentioned embodiment.

  (2a) In the above embodiment, the pipe assembly 100 in which the pipe 1 having the groove 11 and the protrusion 12 and the pipe 2 having the groove 21 and the protrusion 22 are connected by the connector 10 is illustrated. However, the configuration of the pipe assembly is not limited to this.

For example, the pipe assembly 200 of the modified example shown in FIG. 7 has a pipe 6, a pipe 7 and a connector 20 instead of the pipe 1, the pipe 2 and the connector 10 of the above embodiment.
The pipe 6 and the pipe 7 are pipes made of aluminum or aluminum alloy like the pipes 1 and 2. However, the pipe 6 and the pipe 7 are different from the pipe 1 and the pipe 2 in that the pipe 6 and the pipe 7 are cylindrical pipes having no grooves and protrusions.

  The connector 20 is a component for connecting the outer surface of the pipe 6 and the end of the pipe 7. The connector 20 is different from the connector 10 of the above embodiment in that the connector 20 has a connector body 8 instead of the connector body 3.

  The basic structure of the connector body 8 is the same as that of the connector body 3. That is, the connector main body 8 is a component made of aluminum or aluminum alloy, and the shape viewed from the Z-axis direction is a single component having a substantially H shape. The cross-sectional shape perpendicular to the Z-axis direction of the connector body 8 is constant except for a through-hole 813 described later. The connector main body 8 has a pair of opposing plate portions 81 and a spacing holding portion 82.

  Each of the pair of opposed plate portions 81 is a plate-like portion having a substantially constant plate thickness when viewed from the Z-axis direction, and has opposed surfaces 810 that are opposed to each other with a space therebetween. Of the C-shaped end portion 811 and the I-shaped end portion 812 that are the end portions on both sides of the pair of opposing plate portions 81 along the X-axis direction, the C-shaped end portion 811 is the same as the C-shaped end portion 311 of the above embodiment. In comparison, the difference is that it has an arc-shaped inner surface having substantially the same diameter as the outer diameter of the pipe 6 as viewed from the Z-axis direction. The C-shaped end portion 811 is configured to be fixed to the pipe 6 by being pressed against the outer surface of the pipe 6 while surrounding the outer surface of the pipe 6. The I-shaped end portion 812 is an I-shaped, that is, a flat plate-shaped end portion in which each of the pair of opposed plate portions 81 is spaced from each other, like the I-shaped end portion 312 of the above embodiment. However, the I-shaped end portion 812 is different from the I-shaped end portion 312 in that the distance between the facing surfaces 810 is wide and the width along the Z-axis direction is narrow. The I-shaped end 812 is configured to be fixed to the pipe 7 by being pressed against the inner surface of the pipe 7 while being inserted into the end of the pipe 7.

The interval holding unit 82 is different from the interval holding unit 32 of the above embodiment in that the length along the Y-axis direction is long and the width along the Z-axis direction is short.
A through hole 813 similar to the through hole 313 of the above embodiment is provided on the C-shaped end portion 811 side of both sides of the pair of opposing plate portions 81 with the interval holding portion 82 sandwiched along the X axis. It has been. In addition, each of the pair of opposed plate portions 81 includes a rib 814 similar to the rib 314 of the above embodiment. Further, the outer surface of the I-shaped end portion 812 has a contact portion 816 similar to the contact portion 316 of the above embodiment.

  According to such a modification, the same effect as the above embodiment can be obtained. In particular, according to the pipe assembly 200 of the modified example, it is possible to connect the pipe 6 and the pipe 7 having no grooves and protrusions by the connector 20.

  (2b) In the above embodiment, the configuration in which the pipe 1 and the pipe 2 have the same shape and the same size in the cross sections along the directions orthogonal to the central axes 1A and 2A, respectively. However, the configuration of the pipe assembly is not limited to this. For example, the pipe assembly may have a configuration in which pipes having the same cross-sectional shape but different sizes, that is, pipes having different diameters are connected to each other. For example, the pipe assembly may have a configuration in which pipes having different cross-sectional shapes are connected to each other. Specifically, for example, only one pipe may have a groove on the outer surface. For example, the pipe may be a rod-shaped member other than a cylindrical shape. Further, for example, a rod-like member other than a pipe may be used. In that case, at least one of the rod-shaped members may have a cylindrical end portion.

  (2c) In the above embodiment, the connector main body 3, in other words, the pair of opposing plate portions 31 and the interval holding portion 32 is exemplified as a single component, but the configuration of the connector main body is limited to this. is not. For example, the connector body may be composed of a plurality of independent parts. Specifically, for example, the connector main body may be configured by two parts having one opposing plate portion of the pair of opposing plate portions and a protrusion serving as a space holding portion at the central portion thereof. In this case, by bringing the protrusions into contact with each other, the two members can be caused to function as a pair of opposed plate portions and a distance holding portion similar to those in the above embodiment.

  (2d) In the above embodiment, the pipe 1 and the pipe 2 are provided with the four grooves 11, 21, the four ridges 12, 22, and the thin portions 12 A, 22 A, one on each side of each ridge 22. The configuration is exemplified. However, the configuration of the pipe is not limited to this. For example, the structure which does not have a thin part may be sufficient. For example, the number of grooves or protrusions may be other than four.

  (2e) In the above-described embodiment, the interval holding portion 32 is a flat portion that intersects with the opposing surfaces 310 of the pair of opposing plate portions 31 at intersection lines along the Z-axis direction, and the end portions on both sides are The configuration connected to the central portion of the pair of opposed plate portions 31 is exemplified. However, the shape of the interval holding part is not particularly limited. The interval holding unit may be a columnar shape such as a columnar shape or an elliptical column shape.

  (2f) In the above embodiment, each of the pair of opposing plate portions 31 has one rib 314 having a positioning function for restricting the insertion amount of the I-shaped end portion 312 with respect to the pipe 2 and a function for restricting the rotation of the nut 5. The structure which has one each was illustrated. However, the configuration of the rib is not limited to this. For example, the rib may be provided only on one side of the pair of opposed plate portions. Also, the number of ribs is not limited. For example, a rib having a positioning function for restricting the insertion amount of the I-shaped end portion with respect to the pipe and a rib having a function for restricting rotation of the nut are provided separately. It is good also as a structure currently provided.

  (2g) In the above embodiment, the bolt 4 having the circular outer shape of the head 41 viewed from the axial direction and the nut 5 having the polygonal outer shape viewed from the axial direction are exemplified. However, the shape is not limited to this. For example, a configuration may be used in which a bolt having a polygonal outer shape as viewed from the axial direction and a nut having a circular shape as viewed from the axial direction are used.

  (2h) In the above embodiment, the bolt 4 and the nut 5 are exemplified as the biasing mechanism for applying an external force to the pair of opposed plate portions 31, but the biasing mechanism is not limited to this. For example, it is good also as a structure which uses only a volt | bolt, without using a nut. Such a configuration can be realized, for example, by making at least one of the two through-holes exemplified in the above embodiment into a screw hole having a screw that can be screwed with a shaft portion of the bolt. For example, it is good also as a structure which uses neither a volt | bolt nor a nut. Such a configuration uses, for example, a rivet including a head and a shaft portion without a screw, and plastically deforms the tip of the shaft portion with a dedicated tool in a state where the shaft portion of the rivet is inserted into the through hole. This is possible. The configuration using rivets is merely an example, and other components may be used as the urging mechanism.

  (2i) The functions of one component in the above embodiment may be distributed as a plurality of components, or the functions of a plurality of components may be integrated into one component. Moreover, you may abbreviate | omit a part of structure of the said embodiment. In addition, at least a part of the configuration of the above embodiment may be added to or replaced with the configuration of the other embodiment. In addition, all the aspects included in the technical idea specified from the wording described in the claims are embodiments of the present disclosure.

  1, 2, 6, 7 ... pipe, 3, 8 ... connector main body, 4 ... bolt, 5 ... nut, 10, 20 ... connector, 11, 21 ... groove, 12, 22 ... ridge, 12A, 22A ... thin wall portion , 31, 81 ... opposing plate part, 32, 82 ... interval holding part, 41 ... head part, 42 ... shaft part, 100, 200 ... pipe assembly, 310, 810 ... opposing surface, 311, 811 ... C-shaped end part, 312, 812... I-shaped end, 313, 813... Through-hole, 314, 814.

Claims (12)

A connector for connecting the outer surface of the first bar-shaped member and the cylindrical end that is the cylindrical end of the second bar-shaped member,
A pair of opposing plate portions having opposing surfaces facing each other at an interval;
An interval holding portion for maintaining an interval between the central portions of each of the opposing surfaces of the pair of opposing plate portions;
An urging mechanism for applying an external force to the pair of opposed plate portions;
With
Of the first side end portion and the second side end portion, which are the end portions on both sides of the pair of opposing plate portions, the first side end portion has the outer surface of the first rod-shaped member sandwiched therebetween. It is comprised so that it may fix to the said 1st rod-shaped member by press-contacting on the outer surface of 1 rod-shaped member, The said 2nd side edge part was inserted in the said cylindrical edge part of the said 2nd rod-shaped member It is configured to be fixed to the second rod-shaped member by being pressed against the inner surface of the second rod-shaped member in a state,
The urging mechanism is configured to apply the external force in a direction to bring the portions closer to the first side end portion closer to each other than the interval holding portion in the pair of opposed plate portions to the pair of opposed plate portions. There is a connector. The connector according to claim 1,
The end portions on both sides of the interval holding portion are connected to the center portions of the opposing surfaces of the pair of opposing plate portions,
The pair of opposing plate portions and the interval holding portion are configured as a single component. The connector according to claim 2,
The said space | interval holding | maintenance part is a connector and is a connector. The connector according to claim 2 or 3, wherein
A connector in which a cross-sectional shape perpendicular to a specific direction is constant in the first side end portion, the second side end portion, and the interval holding portion. The connector according to any one of claims 1 to 4, wherein
The first side end portion is a plate shape that is curved so that the tips of the pair of opposing plate portions face each other,
The second side end portion is a connector in which each of the pair of opposed plate portions is a flat plate shape spaced apart from each other. A connector for connecting one outer surface and the other end of two cylindrical rod-shaped members,
A pair of opposing plate portions having opposing surfaces facing each other at an interval;
An interval holding portion for maintaining an interval between the central portions along the first direction in each of the opposing surfaces of the pair of opposing plate portions;
An urging mechanism for applying an external force to the pair of opposed plate portions;
With
The outer surface of the rod-shaped member has a plurality of grooves along the central axis of the rod-shaped member,
The inner surface of the rod-shaped member has a plurality of protrusions along the central axis of the rod-shaped member at a position that is the back side of the plurality of grooves,
Of the first side end and the second side end that are the ends on both sides of the pair of counter plate portions along the first direction, the first side end portion is the one of the pair of counter plate portions. It is a plate-like shape that is curved so that each tip is opposed to each other, and is fixed to the rod-shaped member by being pressed into the outer surface of the rod-shaped member while being inserted into the plurality of grooves and sandwiching the outer surface of the rod-shaped member The second side end portion is a flat plate shape in which each of the pair of opposed plate portions is disposed with a space between each other, and is inserted into the end portion of the rod-shaped member. It is configured to be fixed to the rod-shaped member by being pressed against the plurality of protrusions,
The end portions on both sides of the interval holding portion along the second direction orthogonal to the first direction are in the central portion along the first direction on the opposing surfaces of the pair of opposing plate portions, respectively. Connected,
The interval holding portion is a plate shape that intersects each of the opposed surfaces of the pair of opposed plate portions at a line of intersection along a third direction orthogonal to both the first direction and the second direction. There,
The pair of opposed plate portions and the interval holding portion are configured as a single component,
The urging mechanism is configured to apply the external force in a direction to bring the portions closer to the first side end portion closer to each other than the interval holding portion in the pair of opposed plate portions to the pair of opposed plate portions. There is a connector. The connector according to claim 6,
The thickness of the space | interval holding | maintenance part is a connector thinner than each plate | board thickness of a pair of said opposing board part. The connector according to claim 6 or 7, wherein
A connector in which a cross-sectional shape perpendicular to the third direction is constant in the first side end, the second side end, and the interval holding unit. The connector according to any one of claims 6 to 8,
The plurality of protrusions are connectors that are four protrusions arranged at equal intervals along the circumferential direction of the inner surface of the rod-shaped member. The connector according to any one of claims 1 to 9, wherein
The biasing mechanism includes a bolt and a nut that can be screwed to the bolt.
Each of the pair of opposed plate portions has a through-hole for inserting the shaft portion of the bolt on the first side end portion side on both sides of the interval holding portion. The connector according to claim 10, wherein
At least one of the bolt head and the nut has a polygonal shape,
The pair of opposed plate portions are connectors having ribs for restricting the amount of insertion of the second side end portion with respect to the rod-like member and restricting rotation of the head portion of the bolt or the nut. The connector according to any one of claims 1 to 11, wherein
The inner surface of the first side end and the outer surface of the second side end have a concavity and convexity.