JP6184835B2 - Annular strut coupler for plant cultivation - Google Patents

Description

  The present invention relates to an annular column connection tool for plant cultivation that can stably connect an upright support column when connecting upright support columns to form a cylindrical plant support frame.

  In the patent document 1, the present applicant provided a plant support apparatus a as shown in FIG. The plant support device a comprises, for example, a cylindrical plant support frame e on the upper surface d of the cultivation soil c of the flower pot b, and cultivates plants such as vines with the cylindrical plant support frame e. It was possible. More specifically, as shown in FIG. 27 (A), the cylindrical plant support frame e includes three support columns f, f, and f that are erected vertically at the apex position of an equilateral triangle, The upright columns f, f, f were connected at the upper end side portion, the intermediate portion, and the lower end side portion by annular column connection tools g, g, g. In addition, as shown in FIGS. 27 (A) and 27 (B), the circular column support g is provided with a column holding portion k having a C-shaped cross section on the inner peripheral surface j of the circular portion h. The three columns f, f, and f can be connected at the same time by inserting the column f into the insertion recess m of the column holding part k. It was. The strut holding portion k has an insertion recess m that is formed by an arc surface into which the strut f is inserted and whose axis n is in a vertical direction (a direction perpendicular to the circumferential direction of the strut connector g). It has a C-shaped cross section that can elastically hold the column f accommodated in the insertion recess m, and the entire C-shaped wide bottom portion p is completely fixed to the inner peripheral surface j. It had been.

  And the said support | pillar f erected vertically is inserted in the insertion recessed part m, m, m of each support | pillar holding part k, k, k provided in the said annular | circular support | pillar coupling tool g. Thus, the entire three columns f, f, and f were connected in a stable state by the column connector g.

  However, for example, as shown in FIG. 28 (A), a cylindrical plant support frame e having a conical shape or a polygonal pyramid shape is formed by three or more struts f. For example, as shown in FIG. 29 (A), When each column f is erected in an inclined state as in the case of forming a cylindrical plant support frame e that is in a divergent state upward with three or more columns f, the whole of these columns If the two are connected by an annular column connector g, there are the following problems.

  That is, since each column f is in an inclined state, as shown in FIGS. 28C and 29C, the axis n of the insertion recess m is in a vertical state, whereas the column f Since the axis q is in an inclined state, the state in which the column f is inserted into the insertion recess m is incomplete, the holding force of the column f by the column holding portion k is weakened, and the insertion recess m As a result, the support column f is likely to be disengaged from the entrance r as a result of the state where the entrance r is expanded more than the case shown in FIG. For this reason, the cylindrical plant support frame e that exhibits a conical cylinder shape or a polygonal pyramid shape and the cylindrical plant support frame e that is in a divergent state have to be structurally unstable. It was.

Utility Model Registration No. 3148053

  The present invention was developed in view of the above-described conventional problems, and not only can the struts erected in the vertical state be stably connected, but also the struts erected in the inclined state. It can be stably connected, and thereby, the cylindrical plant support frame that exhibits a conical cylinder shape or a polygonal pyramid shape, or the cylindrical plant support frame body that exhibits a divergent state toward the upper side is configured as a stable structure. An object of the present invention is to provide an annular strut connector for plant cultivation to be obtained.

In order to solve the above problems, the present invention employs the following means.
That is, the 1st aspect of the cyclic | annular support | pillar coupling tool for plant cultivation (henceforth a cyclic | annular support | pillar connection tool) which concerns on this invention is the inner peripheral surface part of the coupling tool main body which showed the cyclic | annular form which connects the standing support | pillar, Alternatively, on the outer peripheral surface portion, there is provided a movable column holding member that has an insertion recess for inserting the column and can elastically hold the column inserted in the insertion recess, and the movable column holding member is provided with the insertion recess. The movable strut holding member is swingable at least in the vertical direction by deformation of the hinge part on the outer surface side of the bottom part of the connector. To do.

  In the annular strut connector, when the struts are inserted into the insertion recesses of the movable strut holding member and the opposing left and right holding pieces constituting the insertion recesses are expanded, the left and right holding pieces are fixed. It is preferable that an expansion restricting portion for restricting the above expansion by contacting the outer surfaces of the left and right gripping pieces is provided on both sides of the movable column supporting member. In the annular strut connector, the hinge portion can be rotated about a rotation axis substantially orthogonal to the axis of the strut while the strut is fitted in the fitting recess of the movable strut holding member. Preferably, the hinge part is provided with a rotation restricting part that restricts the rotation of the hinge part by abutting against the outer surfaces of the opposing left and right gripping pieces constituting the fitting recess.

  In the second aspect of the annular strut connector according to the present invention, the concave portion is formed by recessing a part of the annular portion of the connector main body having an annular shape for connecting the upright struts outward or inward. The movable strut holding member is accommodated in the concave portion, and the movable strut holding member has a fitting recess for fitting the strut, and can elastically hold the strut inserted in the fitting recess. The movable strut holding member is connected to the bottom of the concave portion via a hinge portion on the outer surface side of the bottom portion of the insertion recess, and the movable strut holding member is at least vertically moved by deformation of the hinge portion. It is characterized by being able to swing in the direction.

  In the annular strut connector, the movable strut holding member has a fitting recess for fitting the strut, and has a C-shaped cross section that can elastically hold the strut inserted in the fitting recess. The outer side of the bottom of the fitting recess is connected to the bottom of the concave portion via a hinge portion, and the support member can be swung at least in the vertical direction by deformation of the hinge portion. When the struts are inserted into the insertion recesses of the support holding members and the opposing left and right holding pieces constituting the insertion recesses are expanded, the left and right holding pieces are expanded more than a certain amount. The expansion restricting portions as the left and right inner surfaces facing each other are restricted by contacting the outer surfaces of the left and right gripping pieces.

  In the annular strut connector, the hinge portion can be rotated around a rotation axis substantially orthogonal to the axis of the strut in a state where the strut is inserted into the insertion recess of the movable strut holding member. It is preferable that the rotation of the hinge portion be controlled more than a certain amount by the rotation restricting portions as the left and right inner surfaces opposed to the concave portion being brought into contact with the outer surfaces of the left and right gripping pieces. .

  In a more preferred aspect of the annular column connecting member of the second aspect, a part of the annular portion as an arcuate portion of the connecting member main body having an annular shape for connecting the standing columns to each other is formed in a semicircular arc shape outward. A semicircular arc-shaped concave portion is formed by bending and deforming into a projecting shape, and a movable strut holding member is accommodated in the concave portion, and the movable strut holding member has a fitting recess for fitting the strut. , Presenting a C-shaped cross section that can elastically hold the column inserted in the insertion recess, and is connected to the bottom of the recess through a hinge on the outer surface of the bottom of the insertion recess, The supporting member is swingable at least in the vertical direction by deformation of the hinge part, and the hinge part is rotated substantially perpendicular to the axis of the supporting pillar in a state in which the supporting pillar is inserted into the insertion recess. It is possible to rotate around the movement axis, and the fitting When the struts are inserted into the recesses and the opposing left and right gripping pieces constituting the insertion recesses are expanded, the left and right inner side surfaces of the concave part that are opposed to each other are expanded more than a certain amount. The expansion restricting portion is controlled by contacting the outer surfaces of the left and right gripping pieces, while the hinge portion rotates more than a certain amount as the left and right inner surfaces facing the concave portion. The portion is regulated by abutting against the outer surfaces of the left and right gripping pieces.

  In a more preferred aspect of the annular strut connector of the second aspect, the hinge portion is configured with a shaft portion that connects the outer surface side of the bottom portion of the fitting recess and the bottom portion of the recess portion, and the shaft portion is vertically It is preferable to be configured so that it can be bent and deformed in the direction and the shaft portion can be rotated around its axis. In this case, the shaft portion may be configured as a cylindrical shaft portion.

  In the case where the movable strut holding member is housed in the concave portion, the both ends of the fitting recess of the movable strut holding member are configured to protrude from the inner peripheral surface portion or the outer peripheral surface portion of the connector main body. Good.

  In each of the above-mentioned annular strut couplers, it is preferable that the whole is integrally formed with a synthetic resin.

The present invention has the following excellent effects.
(1) An annular strut connector according to the present invention has an insertion recess into which a support column is inserted in an inner peripheral surface portion and / or an outer peripheral surface portion of a connector main body having an annular shape, and a column inserted into the insertion recess. A movable column holding member that can be elastically held is provided, and the movable column holding member can swing at least in the vertical direction.

  Therefore, according to the present invention, even if it is a support column erected in a vertical state or a support column erected in an inclined state, these columns are inserted into the insertion recesses in the entire axial direction. A stable close-fit state can be achieved.

  Therefore, a cylindrical plant support frame body such as a cylindrical shape, a conical cylinder shape, a polygonal pyramid shape, or a cylindrical shape spreading toward the top can be configured as a stable structure, and the cylindrical plant support frame body The plant can be cultivated well.

(2) When the expansion restricting portions are provided on both sides of the movable strut holding member, when the opposing left and right holding pieces constituting the fitting recess are expanded, the holding pieces are fixed. The above expansion is regulated by the expansion regulation unit. For this reason, it is possible to prevent the column inserted into the insertion recess from being inadvertently detached.

(3) When the rotation restricting portion for restricting the rotation of the hinge portion beyond a certain level is provided, the hinge portion is inserted into the insertion recess of the movable strut holding member, and the hinge portion is When it rotates about the rotation axis substantially orthogonal to the axis of the support column, the rotation more than a certain level is restricted by the rotation restricting portion.

(4) A concave part is formed by recessing a part of the annular part of the connector main body, which has an annular shape, which connects the standing pillars, and a movable strut holding member is formed in the concave part. When the movable strut holding member is connected to the bottom of the concave portion via a hinge part on the outer surface side of the bottom of the fitting recess, the movable strut holding member is swung in the vertical direction by In the same manner, the support column can be brought into a stable close contact state in the entire axial direction of the insertion recess. In addition, when the struts are inserted into the insertion recesses and the opposing left and right gripping pieces constituting the insertion recesses are expanded, the left and right gripping pieces expand more than a certain amount. The expansion restricting portions as the opposite left and right inner surfaces are regulated by contacting the outer surfaces of the left and right gripping pieces, thereby preventing the struts fitted in the fitting recesses from being inadvertently removed. Also, since the expansion of the right and left gripping pieces beyond a certain level is restricted in this way, even if a thick pillar with an incorrect standard is inserted into the insertion recess, this insertion can be prevented, so that the movable support gripping Damage to the member can be prevented.

  Further, when the hinge portion is rotated around a rotation axis substantially orthogonal to the axis of the support column in a state where the support column is inserted in the insertion recess, the rotation restricting portion is placed on the outer surface of the left and right gripping pieces. By abutting, the rotation of the hinge part beyond a certain level is restricted.

  Further, since the support column is inserted into the insertion recess of the movable support column holding member housed in the recess, each support column is in a state extending on the circumferential extension line of the connector body. And the connector body have a sense of unity in design, and the appearance of the constructed cylindrical plant support frame can be improved.

(5) The hinge portion is configured with a shaft portion that connects the outer surface side of the bottom portion of the fitting recess and the bottom portion of the recess portion, the shaft portion can be bent and deformed in the vertical direction, and the shaft portion is its axis. When it is configured so that it can be twisted and rotated around, the movable column support member can be smoothly swung in the vertical direction and rotated by the twist.

  In particular, when the shaft portion has a cylindrical shape, the swinging and twisting in the vertical direction can be performed more smoothly.

(6) When the movable strut holding member is stored in the concave portion, the both ends of the fitting recess of the movable strut holding member are configured to protrude from the inner peripheral surface portion or the outer peripheral surface portion of the connector body. When doing, it is easy to fit a support | pillar in this insertion recessed part.

(7) When the concave portion is formed by outwardly denting the annular portion of the connector main body, when an outward force is applied to the support column fitted in the concave portion, the concave shape It is preferable because the portion can stably support the column.

(8) When the entire annular strut connector is integrally formed of synthetic resin, it does not require special part combination processing, and can improve productivity.

It is the perspective view which shows the cyclic | annular support | pillar coupling tool which concerns on this invention, and its partial enlarged view. It is the top view which shows the cyclic | annular support | pillar coupling tool which concerns on this invention, and its partial enlarged view. It is a top view which shows the process of inserting a support | pillar in the insertion recessed part of a movable support | pillar holding member. It is a side view which shows the state which inserted the support | pillar in the insertion recessed part with the swing action of a hinge part. It is the perspective view and sectional drawing which show the state which hooked the net-like object on the hook part protrudingly provided by the outer peripheral surface part of the connector main body. It is a top view which illustrates the cyclic | annular support | pillar coupling tool from which a diameter differs. The perspective view which shows the cylindrical plant support frame comprised by connecting the support | pillar erected using the fixed support | pillar holding member provided in the cyclic | annular support | pillar connection tool, and a support | pillar to the insertion recessed part of a fixed support | pillar support member It is the top view and side view which show the state made to insert. A perspective view showing a cylindrical plant support frame configured by inserting a vertically installed support column into an insertion recess of a movable support column holding member provided on the inner peripheral surface portion of the annular support column connector, and holding the movable support column It is the top view and side view which show the state which inserted the support | pillar in the member. A cylindrical plant support frame configured by inserting a column that is erected so as to be inclined inward into the insertion recess of the movable column holding member provided on the inner peripheral surface of the annular column connector. They are the perspective view to show, the top view and side view which show the state which inserted the support | pillar in the insertion recessed part of the movable support | pillar holding member. The perspective view which shows the cylindrical plant support frame comprised by making the support | pillar standing upright and inclining in the insertion recessed part of the movable support | pillar holding member provided in the internal peripheral surface of the cyclic | annular support | pillar coupling tool, They are the top view and side view which show the state which inserted the support | pillar in the movable support | pillar holding member. It is a perspective view which shows the cyclic | annular support | pillar coupling tool by which a movable support | pillar holding member is stored via the hinge part in the concave part provided in the cyclic | annular support | pillar connection tool. FIG. It is the fragmentary top view which shows the state where the movable support | pillar holding member is stored in the concave part, and the top view which shows the process of inserting a support | pillar in the insertion recessed part of the movable support | pillar holding member. It is a top view which shows the state by which the fall of the support | pillar inserted in the insertion recessed part of the movable support | pillar holding member was controlled by the expansion control part. It is a top view which shows the state by which insertion of the large diameter pillar of an incorrect specification with respect to the insertion recessed part of a movable support | pillar holding member was blocked | prevented by the expansion control part. Explains the state in which the column is inserted into the insertion recess of the movable column holding member stored in the concave portion, the swinging action of the movable column holding member, and the rotation regulating action of the movable column holding member by the rotation regulating unit FIG. A perspective view showing a cylindrical plant support frame configured by connecting a column that is erected in a vertical state using an annular column connector having a concave portion, and an insertion recess of the movable column holding member It is the top view and side view which show the state which inserted the support | pillar. The perspective view which shows the cylindrical plant support frame comprised by connecting the support | pillar standing upright so that it may incline toward the inside using the cyclic | annular support | pillar connection tool which has a recessed part, and its movable support | pillar holding member It is the top view and side view which show the state which inserted the support | pillar in this insertion recessed part. The perspective view which shows the cylindrical plant support frame comprised by connecting the struts erected so as to incline outward from the lower end toward the upper end using an annular strut connector having a concave portion; They are the top view and side view which show the state which inserted the support | pillar in the insertion recessed part of the movable support | pillar holding member. A perspective view showing a cylindrical plant support frame configured by connecting a column that is erected so as to be inclined to the same side when viewed in the circumferential direction with an annular column connector having a concave part, and a column in a fitting recess It is the front view and top view which show the state in which the rotation angle of this movable support | pillar holding member was controlled by the rotation control part in the state by which was inserted. It is a disassembled perspective view which shows the structure of the hinge part comprised using the engagement shaft provided with an engagement head, and a partial cross section side view explaining the swinging effect | action of the up-down direction of this hinge part. It is sectional drawing and the exploded perspective view which show the other aspect of the hinge part comprised using the engagement axis | shaft provided with the engagement head. A perspective view illustrating a cylindrical plant support frame configured using an annular column support member in which a movable column support member is provided on the outer peripheral surface portion of the connector main body via a hinge portion, and the movable column support member It is the top view and side view which show the state which inserted the support | pillar in the insertion recessed part. It is a top view which shows the other aspect of a cyclic | annular support | pillar coupling tool. It is the top view which shows the cyclic | annular support | pillar coupling tool by which a concave part is comprised by indenting a part of coupling body inside, and its elements on larger scale. It is the top view which shows the other aspect of the cyclic | annular support | pillar coupling tool which provides a concave part, and its partial enlarged view. It is the perspective view which shows an example of the conventional plant support apparatus which comprises a cylindrical plant support frame, The top view and side view which show the state which the support holding part provided in the support | pillar coupling tool clamped the support | pillar. The perspective view which shows the other example of the conventional plant support apparatus which comprises a cylindrical plant support frame, and the top view and side view which show the state which the support holding part provided in the support | pillar coupling device clamped the support | pillar is there. The perspective view which shows the other example of the conventional plant support apparatus which comprises a cylindrical plant support frame, and the top view and side view which show the state in which the support holding part provided in the support | pillar coupling device clamped the support | pillar is there.

  1 to 4, an annular strut connector 1 according to the present invention is provided with a movable strut holding member 6 on an inner peripheral surface portion 5 of a connector main body 3 that has an annular shape for connecting a standing strut 2. The movable strut holding member 6 has a fitting recess 7 into which the strut 2 is fitted, and can elastically hold the strut 2 fitted into the fitting recess 7. The movable strut holding member 6 is connected to the inner peripheral surface portion 5 (that is, the connector main body 3) via a hinge portion 11 on the outer surface side 10 of the bottom portion 9 of the fitting recess 7, and the hinge portion 11, the movable strut holding member 6 can swing in the vertical direction.

  In the present embodiment, the annular strut connector 1 is integrally formed of a synthetic resin such as polypropylene, and has an annular shape with an inner diameter of 250 to 350 mm. The width L1 (FIG. 4B) is set to about 10 mm, for example, and the width L2 (FIG. 3A) in plan view is set to about 5 mm, for example.

  As shown in FIG. 3A, the movable strut holding member 6 includes a holding portion main body 13 on which guide pieces 12 and 12 are projected. As shown in FIG. 3 (B), the holding portion main body 13 is provided with the insertion recess 7 for inserting the support column 2, and the insertion recess 7 elastically moves the inserted support column 2. It is comprised as an inner side recessed part of the cross-sectional C-shaped part 14 which can be pinched.

  As shown in FIG. 3 (A), a support inlet 15 as an open end of the fitting recess 7 of the gripping body 13 is formed smaller than the diameter of the support 2, and the support inlet 15 The guide pieces 12, 12 protrude from the edge portions 16, 16 on both sides of 15. The guide pieces 12 and 12 are provided so as to project obliquely in opposite directions so that the width between the guide pieces 12 and 12 expands toward the tip. The inner surfaces of the edges 16 and 16 on both sides are in contact with the surface 17 of the column 2 fitted in the fitting recess 7 as shown in FIGS. 3 (A), 3 (B), and 1 (B). Point-like projecting portions 19 and 19 for projecting the support column 2 to the fitting recess 7 more reliably are provided.

  As shown in FIGS. 3 (A) and 1 (B), the movable strut holding member 6 having such a structure is formed as a plate portion 11a at the central portion in the vertical direction on the outer surface side 10 of the bottom portion 9 of the fitting recess 7. Are connected to the inner peripheral surface portion 5 through the hinge portion 11. In the present embodiment, the plate portion 11a has a flat plate shape in plan view, and the thickness is set to about 1 mm. As shown in FIGS. 4B and 4C, the elasticity of the resin is used. It can be elastically deformed and can swing in the vertical direction. 1 (B) and 4 (A) show a state in which the axis L3 of the insertion recess 7 is in the vertical direction (a direction perpendicular to the circumferential direction of the connector main body 3). FIG. 4B shows a state in which the movable column holding member 6 swings downward, and FIG. 4C shows a state in which the movable column holding member 6 swings upward.

  In this embodiment, as shown in FIGS. 1 and 2, a first movable strut holding member 6a capable of fitting a 16 mm diameter strut 2 into the inner peripheral surface portion 5 of the connector main body 3, and a 11 mm diameter strut 2 There are provided three types: a second movable strut holding member 6b capable of inserting a support and a third movable strut holding member 6c capable of fitting a support 2 having a diameter of 8 mm. In FIG. 2, a set of the first, second, and third movable column support members 6a, 6b, and 6c arranged at a small interval of about 40 mm in the circumferential direction of the inner peripheral surface portion 5 At least three sets are arranged at a required angle in the circumferential direction. For example, the set is arranged at an angular pitch of 120 degrees in the circumferential direction. In the present embodiment, as shown in FIGS. 1 and 2, for example, a semicircular arc plate-shaped dimension display piece 20 protrudes from the inner peripheral surface portion 5 in the vicinity of each movable support column holding member, and its upper surface 21. For example, as shown in FIG. 2B, the diameter of the support column 2 that can be inserted into the insertion recess 7 of the movable support column holding member 6 is indicated by numerals.

  In the present embodiment, as shown in FIGS. 1 and 2, fixed strut holding members 23 are provided on the outer peripheral surface portion 22 of the connector main body 3 at an angular pitch of 90 degrees in the circumferential direction. The fixed strut holding member 23 has the same configuration as the movable strut holding member 6, and is provided with an insertion recess 25 for fitting the support 2. And the bottom part 26 of this insertion recessed part 25 is provided in this outer peripheral surface part 22 in the fixed state directly, as shown in FIG.1 (B) and FIG.2 (B). The axis L4 (FIG. 1 (B)) of the insertion recess 25 is in the vertical direction. For example, as shown in FIGS. 1 (A) and 7, a post 2 having a diameter of 14 mm can be inserted. The outer peripheral surface portion 22 is provided with a semicircular arc plate-like dimension display piece 29 in the vicinity of the fixed strut holding member 23, and the upper surface 30 is fitted into the insertion recess 25 of the fixed strut holding member 23. The diameter of the column 2 to be obtained is indicated by a number. In addition, a hook portion 32 for hooking a net-like object 31 is provided at a central portion between the fixed column holding members 23 and 23 adjacent to each other in the circumferential direction, for example, as shown in FIG. For example, as shown in FIG. 5B, the hook portion 32 has a configuration in which protrusions 35, 35 are provided at the top and bottom at the tip of a protruding piece 33 protruding from the outer peripheral surface portion 22.

  FIG. 6 shows first to fourth annular strut couplers 1a, 1b, 1c, and 1d having different diameters. The inner diameter of the first annular strut coupler 1a is about 200 mm, and the second annular strut coupler is shown in FIG. The inner diameter of the connector 1b is about 250 mm, the inner diameter of the third annular strut connector 1c is about 300 mm, and the inner diameter of the fourth annular strut connector 1d is set to about 350 mm.

  These first to fourth annular strut couplers 1a, 1b, 1c, and 1d are appropriately selected according to the diameter in plan view of each part of the cylindrical plant support frame body 36 that is a constituent element. .

  Hereinafter, the cylindrical plant support frame 36 comprised using the said cyclic | annular support | pillar coupling tool 1 is illustrated. The cylindrical plant support frame 36 shown in FIG. 7 (A) is configured by using two arch-like columns 37, 37, and the arch-like columns 37 are parallel to each other with a gap therebetween. The upper ends of linear struts (for example, 14 mm diameter struts) 2 and 2 are connected by a connecting portion 39 having an inverted U shape to form an arch shape.

  The two arched columns 37, 37 having such a configuration are, for example, erected on the upper surface 42 of the cultivation soil 41 of the flower pot 40, and the upper ends of the connecting portions 39, 39 are brought into contact with each other so as to intersect at substantially right angles. The four struts 2, 2, 2 and 2 which are in a standing state and are vertically arranged are in the three positions of the lower part, the middle part and the upper part when viewed in the height direction. They are connected by a connector 1. In this connection, each of the support columns 2, 2, 2, 2 is fixed to the outer peripheral surface portion 22 of the connector main body 3, and the fitting recesses 25, 25, 25, 25.

  As described above, since the axis L4 (FIG. 1 (B)) of the insertion recess 25 is in a vertical state (a state perpendicular to the circumferential direction of the connector main body 3), the support column 2 has the structure shown in FIG. (C) As shown in (D), a stable close-fit state is achieved in the whole of the insertion recess 7 in the direction of the axis L4. The cylindrical tubular plant support frame 36 configured in this way is structurally stable, and the lower end portions of the support columns 2, 2, and 2 are pierced into the soil to a depth of about 30 cm, for example. In FIG. 7 (A), the plant can be cultivated satisfactorily.

  The cylindrical plant support frame 36 shown in FIG. 8A has three pillars (for example, 11 mm-diameter pillars) 2, 2, 2 standing vertically at the apex position of an equilateral triangle. When viewed in the direction, the annular strut connector 1 is connected to the lower part, the upper and lower parts of the intermediate part, and the upper part. In this case, each of the support columns 2, 2, 2 is inserted into the fitting recesses 7, 7, 7, 6 a, 6 a of the first movable column support members 6 a, 6 a, 6 a provided on the inner peripheral surface 5 of the connector body 3. 7 is inserted. As described above, the movable strut holding member 6 can swing in the vertical direction, but the axis L3 (FIG. 1 (B)) of the fitting recess 7 can be in a vertical state, so that it is erected in a vertical state. As shown in FIG. 8 (D), the supporting column 2 is in a stable close-fit state in the entire direction of the axis L3 of the fitting concave portion 7, whereby a structurally stable triangular cylindrical shape is obtained. The plant support frame 36 can be configured. A plant can be cultivated satisfactorily by the cylindrical plant support frame 36.

  The cylindrical plant support frame 36 shown in FIG. 9 has three pillars (for example, 11 mm diameter pillars) 2, 2, 2 standing upright so as to incline inward at the apex position of an equilateral triangle. Yes. The three struts 2, 2, and 2 are connected by the annular strut connector 1 at the lower portion, the middle portion, and the upper portion as viewed in the length direction of the struts. In the lower portion, a fourth annular strut connector 1d having an inner diameter of about 350 mm is used, and in the intermediate portion, a third annular strut connector 1c having an inner diameter of about 300 mm is used. In, for example, a second annular strut connector 1b having an inner diameter of about 250 mm is used. Then, in each of the annular strut connectors 1d, 1c, 1b, the second movable strut holding members 6b, 6b, 6b for inserting the struts having a diameter of 11 mm are selected, and the respective fitting recesses 7, 7 are selected. , 7 are in close contact with the columns 2, 2, 2. Since all the three columns 2, 2 and 2 are inclined inward from the lower end toward the upper end, each movable column holding member 6b is inserted in the state where the column 2 is inserted into the insertion recess 7. , 6b, 6b are in a downward swing state due to bending deformation at the hinge portion 11. For this reason, the support column 2 is in a stable close-fit state in the entire direction of the axis L3 of the insertion recess 7.

  The triangular plant support frame body 36 having a triangular pyramid shape thus configured is structurally stable, and the plant can be cultivated satisfactorily with the cylindrical plant support frame body 36.

  The cylindrical plant support frame body 36 shown in FIG. 10 has three support columns (for example, 11 mm diameter support columns) 2, 2, 2 erected at the apex position of an equilateral triangle outward from the lower end toward the upper end. The three columns 2, 2, and 2 are formed by the annular column connector 1 in the lower portion, the middle portion, and the upper portion, respectively, as viewed in the length direction of the column. It is connected. In the lower portion, the second annular strut connector 1b having an inner diameter of about 250 mm is used, and in the intermediate portion, the third annular strut connector 1c having an inner diameter of about 300 mm is used. In the upper portion, the fourth annular strut connector 1d having an inner diameter of about 300 mm is used. Then, in each of the annular strut couplers 1b, 1c, 1d, the second movable strut holding members 6b, 6b, 6b for inserting the struts having a diameter of 11 mm are selected, and the respective fitting recesses 7, 7 are selected. , 7 are in close contact with the columns 2, 2, 2.

  Since all the three columns 2, 2 and 2 are inclined outward from the lower end toward the upper end, each movable column holding member 6b is inserted in the state where the column 2 is inserted into the insertion recess 7. , 6b, 6b are in an upward swing state due to bending deformation at the hinge portion 11. For this reason, the support column 2 is in a stable close-fit state in the entire direction of the axis L3 of the insertion recess 7.

  The tubular plant support frame 36 that is configured in this way and that expands upward toward the top is structurally stable, and the plant can be cultivated satisfactorily with the cylindrical plant support frame 36. It becomes.

  In these cylindrical plant support frame bodies 36, for example, as shown in FIG. 5, a net-like object 31 may be provided so as to cover the outer peripheral surface portion 47 of the cylindrical plant support frame body 36. At that time, by attaching a required portion of the net-like object 31 to the hook portion 32 as shown in FIG. 5, the mounting of the net-like object 31 can be stabilized. Thereby, the plant cultivation shelf on which the net-like object 31 is stretched can be easily configured, and vine plants such as cucumbers, beans and morning glory can be cultivated satisfactorily.

  11 to 13 show another embodiment of the annular strut connector 1 according to the present invention. A connector main body 3 constituting the annular column connector 1 connects the upright columns 2. In this embodiment, the connector body 3 is integrally formed of a synthetic resin such as polypropylene, for example, has an annular shape with an inner diameter of 150 to 300 mm, and has a width in a side view as shown in FIG. L5 is set to about 10 mm, for example, and the width L6 in plan view is set to about 7 mm, for example.

  Further, in this embodiment, as shown in FIGS. 11 to 12, the connector main body 3 has a semicircular arc-shaped projecting portion in which a part of the annular portion 49 as the arc-shaped portion 49a is directed outward in the radial direction. A semicircular arc-shaped concave portion 50 is formed on the inner side, and the movable strut holding member 6 is accommodated in the concave portion 50. Thus, as shown in FIG. 13 (A), the connector main body 3 is formed so that the side portions 51, 51 of the both end portions 48, 48 of the concave portion 50 are mutually connected at the portion where the concave portion 50 is formed. The protrusions 52 are connected to each other. Three or more concave portions 50 are provided when viewed in the circumferential direction of the connector main body 3. In the present embodiment, four are provided at an angular pitch of 90 degrees.

  The movable strut holding member 6 has a fitting recess 7 into which a strut 2 having a diameter of 8 mm, for example, is fitted, and the strut 2 fitted into the fitting recess 7 can be elastically clamped. As shown in FIGS. 13B and 13C, the insertion recess 7 has a C-shaped cross section that can elastically hold the inserted support column 2. And the support | pillar introduction port 55 as an open end of this insertion recessed part 7 is formed smaller than the diameter of the said support | pillar 2, Both the side parts 56 and 56 of both the open ends of this support | pillar introduction port 55 are the both side parts. The width between 56 and 56 is inclined in the opposite direction so as to exhibit a C-shape that expands toward the tip.

  The movable strut holding member 6 having such a configuration is a bottom portion of the concave portion 50 through a hinge portion 11 serving as a cylindrical shaft portion 11b at a central portion in the vertical direction on the outer surface side 10 of the bottom portion 9 of the fitting concave portion 7. 53. The diameter of the cylindrical shaft portion 11b is set to about 1.5 mm, for example, and the protruding length is set to about 1.5 mm.

  Further, as shown in FIG. 13A, a gap 60 of about 1.5 mm is provided between the outer surface 57 of the movable strut holding member 6 and the inner surface 59 of the concave portion 50. Further, in this embodiment, as shown in FIG. 11, the vertical width of the movable strut holding member 6 is set to be approximately equal to the vertical width of the connector main body 3, and the fitting of the movable strut holding member 6 is performed. As shown in FIG. 13A, the front ends 61, 61 on both sides of the recess 7 protrude from the inner peripheral surface portion 5 of the connector main body 3 by about 2 mm. The leading ends 61 and 61 are protruded in this manner in order to make it easier to fit the support column 2 in the fitting recess 7 as shown in FIG.

  Further, as shown in FIG. 13C, in the state where the support column 2 is inserted into the insertion recess 7 of the movable support column holding member 6 having such a configuration, the support column 2 is formed in the concave shape of the connector body 3. It will be in the state located substantially in the discontinuous part 62 which makes between the side parts 51 and 51 of the both ends 48 and 48 of the part 50. FIG.

  In the annular strut connector 1 having such a configuration, the right and left gripping pieces 63, 63 constituting the fitting recess 7 are expanded beyond a certain extent as shown in FIG. Since the expansion restricting portions 66 and 66 as the left and right inner side surfaces 65 and 65 are restricted by coming into contact with the outer surfaces 67 and 67 of the left and right gripping pieces 63 and 63, the support column 2 fitted in the fitting recess 7. Is prevented from being inadvertently removed.

  Further, when the column 2 having a diameter larger than the set diameter is inserted into the insertion recess 7, the left and right gripping pieces 63, 63 constituting the insertion recess 7 are expanded as shown in FIG. When the outer surfaces 67 and 67 of the gripping pieces 63 and 63 come into contact with the expansion restricting portions 66 and 66, the right and left gripping pieces 63 and 63 are restricted from being expanded beyond a certain level. Become. Accordingly, it is possible to prevent a situation in which the movable column holding member 6 is damaged by inserting the thick-diameter column of the wrong standard into the insertion recess 7.

  The movable strut holding member 6 has a vertical direction as shown in FIGS. 16 (A) and 16 (A). In addition, as shown in FIGS. Similarly, swinging in the vertical direction is possible by bending deformation of the cylindrical shaft portion 11b which is the hinge portion 11.

  Also, as shown in FIG. 16D, when the columnar shaft portion 11b is twisted and rotated about its axis in a state where the column 2 is inserted into the insertion recess 7 of the movable column holding member 6. The cylindrical shaft portion is formed by the rotation restricting portions 69 and 69 as the left and right inner side surfaces 65 and 65 facing the concave portion 50 being in contact with the outer surfaces 67 and 67 of the left and right gripping pieces 63 and 63. The rotation more than a certain value of 11b is restricted.

  17-20 shows the cylindrical plant support frame 36 comprised using the cyclic | annular support | pillar coupling tool 1 which has the said structure, The cylindrical plant support frame 36 shown to FIG. Four struts (for example, 8 mm diameter struts) 2, 2, 2, 2 standing upright at the top of the square are 3 in the lower part, the middle part, and the upper part as viewed in the length direction. It is connected with the said annular | circular support | pillar coupling tool 1 in the place. The support columns 2, 2, 2, 2 are inserted into the respective insertion recesses 7 of the movable support column holding members 6, 6, 6, 6 provided on the inner peripheral surface portion 5 of the connector main body 3. As described above, the movable strut holding member 6 can swing in the vertical direction, but since the axis L3 of the insertion recess 7 can be in a vertical state, the strut 2 standing in the vertical state is As shown in FIGS. 17C and 17D, a stable close-fit state can be achieved in the entire axial direction of the insertion recess 7. As a result, a structurally stable square cylindrical tubular plant support frame 36 can be constructed, and plants can be cultivated favorably with the cylindrical plant support frame 36.

  The cylindrical plant support frame 36 shown in FIG. 18 is erected such that four support columns (for example, 8 mm diameter support columns) 2, 2, 2, and 2 are inclined inward at a square apex position. ing. The four struts 2, 2, 2, and 2 are connected by the annular strut connector 1 at the lower portion, the middle portion, and the upper portion as viewed in the length direction of the struts. In the lower portion, the first annular strut connector 1a having an inner diameter of about 350 mm is used, and in the intermediate portion, the second annular strut connector 1b having an inner diameter of about 300 mm is used. In, for example, a third annular strut connector 1c having an inner diameter of about 250 mm is used. Then, as shown in FIG. 18C, in each of the annular strut couplers 1a, 1b, and 1c, the strut 2 is brought into a close fitting state in the fitting recess 7 of the movable strut holding member 6. Since the four columns 2, 2, 2, 2 are all inclined inward from the lower end toward the upper end, the column 2 is inserted in the insertion recess 7 as shown in FIG. As shown in FIG. 2, each movable support pole holding member 6 exhibits a downward swinging state due to the bending deformation at the hinge portion 11. The triangular plant support frame body 36 having a triangular pyramid shape thus configured is structurally stable, and plants can be cultivated satisfactorily with the tube plant support frame body 36.

  The cylindrical plant support frame body 36 shown in FIG. 19 has four struts (for example, struts having a diameter of 8 mm) 2, 2, 2, and 2 that are erected at the apex position of a square. The four struts 2, 2, 2, and 2 are connected to the annular struts in the lower part, the middle part, and the upper part, respectively, as viewed in the length direction of the struts. It is connected with the tool 1. In the lower portion, a third annular strut connector 1c having an inner diameter of about 190 mm is used, and in the intermediate portion, a second annular strut connector 1b having an inner diameter of about 240 mm is used. In the upper portion, the first annular strut connector 1a having an inner diameter of about 290 mm is used. Then, as shown in FIG. 19C, in each annular strut connector 1, the strut 2 is closely fitted into the fitting recess 7 of the movable strut holding member 6. Since all of the four columns 2, 2, 2, 2 are inclined outward from the lower end toward the upper end, the column 2 is inserted into the insertion recess 7 in FIG. As shown in FIG. 2, each movable support pole holding member 6 exhibits an upward swinging state due to bending deformation at the hinge portion 11. Therefore, the support column 2 is in a stable close-fit state in the entire axial direction of the insertion recess 7. The tubular plant support frame 36 that is configured as described above and that expands toward the upper end is structurally stable, and the cylindrical plant support frame 36 can cultivate plants well. .

  Further, the cylindrical plant support frame 36 shown in FIG. 20 has four support columns (for example, 8 mm diameter support columns) 2, 2, 2, and 2 standing on the same side when viewed in the circumferential direction. The four struts 2, 2, 2, 2 in the inclined standing state are connected by the annular strut connector 1. In this case, since each of the columns 2, 2, 2, 2 is inclined in the same direction, the movable column holding member 6 formed by inserting the column 2 into the insertion recess 7 is as shown in FIG. Further, it is tilted by the rotation around the rotation axis substantially orthogonal to the axis of the support column 2 (that is, the deformation of the hinge 11) accompanying the required twisting around the axis of the hinge 11.

  The cylindrical plant support frame 36 having such a configuration is twisted helically as a whole when viewed in the vertical direction, and has a unique appearance. The cylindrical plant support frame 36 is structurally stable and can cultivate plants well.

  And in each said cylindrical plant support frame 36, the four struts 2, 2, 2, 2 erected are present in the interrupted portion 62 of the connector main body 3 having an annular shape, Each support column 2 arranged in the cut-off portion 62 is in a state of being on a circumferential extension line of the connector main body 3. Therefore, the four support columns 2, 2, 2, 2 and the connector main body 3 have a sense of unity in design, and the appearance of the cylindrical plant support frame is good.

  In the present embodiment, the concave portion 50 is formed by recessing a part of the annular portion 49 of the connector main body 3 outward. The reason why the movable strut holding member 6 is housed in the concave portion 50 formed by recessing outward in this manner is that the strut 2 inserted in the insertion recess 7 faces outward. This is because, when force is applied, the support column 2 can be supported more stably by the concave portion 50 (that is, the connector main body 3).

  The present invention is by no means limited to those shown in the above-described embodiments, and it goes without saying that various design changes can be made within the scope of the claims. One example is as follows.

(1) The hinge part 11 can be variously configured as long as the movable column supporting member 6 can swing at least in the vertical direction.

  When the hinge portion 11 is configured as the plate portion 11a, a thin wall portion or a groove portion for facilitating bending is provided in a part thereof, or the plate portion 11a is configured with a soft resin that can be elastically deformed. You can also.

  FIGS. 21 and 22 show another embodiment of the hinge portion 11, and the inner peripheral surface portion 5 of the connector main body 3 having a U-shaped cross-section with an open lower end (the concave portion in FIG. 22). 50 is provided at the bottom 53), and an engaging shaft 71 projects from the outer surface side 10 of the bottom 9 of the fitting recess 7 of the movable strut holding member 6. In this embodiment, the engaging shaft 71 is configured by providing a spherical engaging head 73, and the engaging head 73 is elastically pushed into the engaging hole 70. 21 (C), (D), and FIG. 22 (A), it is accommodated in a groove-like space 75 that is formed between the inner peripheral surface portion 5 and the outer peripheral surface portion 22 of the connector main body 3. In this state, as shown in FIGS. 21 (C), (D), (E), and FIG. 22 (A), the shaft portion 72 is loosely inserted into the engagement hole portion 70 and the movable strut holding member. 6 is connected to the inner peripheral surface portion 5. In this case, depending on the degree of freedom of movement of the shaft portion 72 in the engagement hole portion 70, the movable strut holding member 6 is moved in the vertical direction by deformation of the hinge portion 11 due to the movement of the shaft portion 72. In addition, as the shaft portion 72 pivots around the axis line, the shaft portion 72 rotates about the axis of rotation substantially perpendicular to the axis of the support column 2 (in this embodiment, the axis of the shaft portion 72). Is also free to rotate (ie, deformation of the hinge portion 11). FIG. 21B and FIG. 22B show another aspect of the engagement shaft 71, and it is easier to elastically push the engagement head 73 into the engagement hole 70. Therefore, a split groove 76 is provided in the shaft portion 72 and the engagement head portion 73.

(2) In the first embodiment, the fixed column holding member 23 is provided on the outer peripheral surface portion 22 of the connector main body 3. However, the fixed column holding member 23 can be swung at least in the vertical direction. It can also be changed to 6. As a configuration that enables the movable column holding member 6 to swing, the configuration shown in the first embodiment, the configuration shown in FIGS. 21 and 22, and the like can be employed. In this case, the fixed support holding member 23 having the same configuration as that of the first embodiment may be provided on the inner peripheral surface portion 5 of the connector main body 3.

  In short, the movable strut holding member 6 may be provided on both the inner peripheral surface portion 5 and the outer peripheral surface portion 22 of the connector main body 3, and the movable strut holding member 6 may be provided only on the inner peripheral surface portion 5 or the outer peripheral surface portion 22. It is also possible to provide only for. In addition, the movable strut holding member 6 and the fixed strut holding member 23 may be mixed in the inner peripheral surface portion 5 and the outer peripheral surface portion 22.

(3) FIG. 23 exemplifies a cylindrical plant support frame 36 configured by using the annular strut connector 1 in which the movable strut holding member 6 is provided on the outer peripheral surface portion 22 of the connector main body 3. is there. In the cylindrical plant support frame 36, the arched columns 37, 37 are formed in a mountain shape, and each movable column supporting member 6, 6, 6 provided on the outer peripheral surface portion 22. , 6 exhibit an upward swinging state due to the bending deformation of the hinge portion 11, and the support column 2 is closely fitted into the fitting recess 7.

(4) When the fixed column holding member 23 and the movable column holding member 6 are provided on the outer peripheral surface portion 22 of the connector main body 3, columns having different diameters can be fitted into the insertion recess 25 and the insertion recess 7. As described above, similarly to the setting of the arrangement state of the movable column holding member 6 in the first embodiment, a plurality of types of fixed column holding members 23 and movable column holding members 6 having different fitting recess sizes can be provided.

(5) The connector body 3 having an annular shape is preferably an annular shape, but may be a polygonal annular shape such as a quadrangle, hexagon, or octagon.

(6) In FIG. 24, the inner peripheral surface portion 5 of the connector main body 3 is provided with three types of first, second, and third movable column supporting members 6a, 6b, and 6c having the same configuration as described above. Another embodiment of the annular strut connector 1 is shown, and the first, second, and third movable strut holding members 6a, 6b, and 6c are counterclockwise in this order at an angular pitch of 40 degrees. The first movable strut holding members 6a, 6a, 6a are arranged at an angular pitch of 120 degrees. In addition, the second movable column support member 6b and the third movable column support member 6c are also arranged at an angular pitch of 120 degrees. In the present embodiment, as shown in FIG. 24, for example, a semicircular arc plate-shaped dimension display piece 20 is provided on the inner peripheral surface portion 5 so as to be close to each movable support column holding member 6, and its upper surface 21. In addition, the diameter of the support column 2 that can be inserted into the insertion recess 7 of the movable support column holding member 6 is indicated by a number.

(7) In the case shown in FIG. 1 or FIG. 24, the inner peripheral surface portion 5 has only one type of size among the first, second, third movable strut holding members 6a, 6b, 6c, etc. May be provided. Further, the number of movable strut holding members 6 provided on the inner peripheral surface portion 5 and the outer peripheral surface portion 22 is at least three.

(8) The annular strut coupler 1 configured to form a concave portion 50 by recessing a part of the connector main body 3 and to accommodate the movable strut holding member 6 in the concave portion 50 is shown in FIG. As shown, the concave portion 50 may be formed by indenting a part of the connector main body 3 inward. Also in this case, as described above, the tips 61 and 61 on both sides of the insertion recess 7 protrude from the outer peripheral surface portion 22 of the connector main body 3 by about 2 mm as shown in FIG.

(9) The shape of the concave portion 50 is such that the column supporting member 6 can be accommodated in the concave portion 50 and the movable column supporting member 6 can be swung at least in the vertical direction by deformation of the hinge portion 11. As long as it can be obtained, it may have a shape such as a triangular shape, a pentagonal shape, a hexagonal shape, or an octagonal shape in addition to an elliptical shape.

  In addition, when the concave portion 50 is configured by bending and deforming a part of the annular portion 49 of the connector main body 3 in a projecting manner, it is bent into a semicircular projecting shape, an elliptical shape or a triangular shape, It can be bent and deformed into various shapes such as a pentagonal shape, a hexagonal shape, and an octagonal shape.

  Even when the connector main body 3 includes the concave portion 50, a plurality of types of concave portions 50 having different sizes may be provided in the connector main body 3 so as to respond to a plurality of types of struts 2 having different diameters. In addition, when the width of the connector main body 3 is large, the concave portion 50 can be formed by connecting the inner peripheral surface portion 5 or the outer peripheral surface portion 22 thereof without bending the connector main body 3 as shown in FIG. It may be configured to be recessed.

(10) When the connector main body 3 has the concave portion 50 for receiving the movable strut holding member 6, the movable strut holding member 6 can only swing in the vertical direction by the deformation of the hinge portion 11. In some cases, it cannot be rotated and deformed.

(11) In the annular strut connector 1 shown in the first embodiment, there is provided an expansion restricting portion 66 for restricting a certain amount or more of the opposed gripping pieces 63, 63 of the movable strut gripping member 6, or the hinge. When the rotation restricting portion 69 that restricts the rotation of the portion 11 beyond a certain level is provided, the expansion restricting portion 66 and the rotation restricting portion 69 are connected to the opposing gripping pieces 63 constituting the movable column gripping member 6. It can also be provided on the side of each of 63.

(12) As described above, the annular strut connector 1 according to the present invention is a strut erected on the upper surface of the cultivated soil in the surrounding frame in addition to the strut erected on the upper surface of the cultivated soil of the flowerpot. In addition, the present invention can also be applied to a column that is erected on the ground.

DESCRIPTION OF SYMBOLS 1 Annular support | pillar connecting tool 2 Support | pillar 3 Connecting tool main body 5 Inner peripheral surface part 6 Movable support | pillar holding member 7 Insertion recessed part 9 Bottom part 10 Outer surface side 11 Hinge part 12 Guide piece 13 Holding | maintenance part main body 15 Support | pillar introduction port 23 Fixed support | pillar holding member 25 Insertion recessed part 26 bottom part 31 net-like object 32 hook part 37 arch-like support 36 cylindrical plant support frame 49 annular part 50 concave part 52 projecting part 60 gap 63 gripping piece 66 expansion restricting part 69 rotation restricting part

Claims (11)

  An inner peripheral surface portion and / or an outer peripheral surface portion of a connector main body that presents an annular shape that connects the upright columns, and has an insertion recess for inserting the column, and elastically holds the column inserted in the insertion recess. A movable strut holding member is provided, and the movable strut holding member is connected to the connector main body via a hinge part on the outer surface side of the bottom of the fitting recess, and the deformation of the hinge part causes the deformation of the hinge part. An annular strut connector for plant cultivation, wherein the movable strut holding member is swingable at least in the vertical direction.   When the support is inserted into the insertion recess of the movable support holding member and the opposing left and right holding pieces constituting the insertion recess are expanded, the left and right holding pieces are expanded beyond a certain extent. 2. The annular strut connector according to claim 1, wherein an expansion restricting portion that restricts by contacting the outer surfaces of the right and left gripping pieces is provided on both sides of the movable strut gripping member.   The hinge portion can be rotated about a rotation axis substantially orthogonal to the axis of the column in a state where the column is inserted into the insertion recess of the movable column holding member. 2. The annular strut connector according to claim 1, further comprising a rotation restricting portion for restricting rotation by contacting the outer surfaces of the opposing left and right gripping pieces constituting the fitting recess.   A concave part is formed by recessing a part of the annular part of the connector main body, which has an annular shape to connect the upright pillars, to the outside or inward, and the movable strut holding member is housed in the concave part. The movable strut holding member has a fitting recess for fitting the strut, and is capable of elastically holding the strut inserted into the fitting recess, and the movable strut holding member is provided at the bottom of the fitting recess. An annular surface that is connected to the bottom of the concave portion through a hinge on the outer surface side, and the movable strut holding member can be swung at least in the vertical direction by deformation of the hinge. Prop coupler.   The movable strut holding member has a fitting recess for fitting the strut, has a C-shaped cross section that can elastically hold the strut inserted into the fitting recess, and an outer surface of the bottom of the fitting recess The column is connected to the bottom of the concave portion via a hinge part, and the support member is swingable at least in the vertical direction by deformation of the hinge part, and the insertion of the support member When the struts are inserted into the recesses and the opposing left and right gripping pieces constituting the insertion recesses are expanded, the left and right inner side surfaces of the concave part that are opposed to each other are expanded more than a certain amount. 5. The annular strut connector according to claim 4, wherein the expansion restricting portion is restricted by coming into contact with the outer surfaces of the left and right gripping pieces.   The hinge portion can be rotated about a rotation axis substantially orthogonal to the axis of the column in a state where the column is inserted into the insertion recess of the movable column holding member. 6. An annular strut connector according to claim 5, wherein the rotation is restricted by the rotation restricting portions as the left and right inner surfaces opposed to each other in contact with the outer surfaces of the left and right gripping pieces. .   A semicircular arc-shaped concave part is formed by bending and deforming a part of the circular part as the arcuate part of the connector main body having an annular shape that connects the standing pillars to each other in a semicircular arc shape. The movable strut holding member is housed in the concave portion, and the movable strut holding member has a fitting recess for fitting the strut, and can elastically hold the strut inserted in the fitting recess. It has a C-shaped cross section, and is connected to the bottom of the concave portion via a hinge portion on the outer surface side of the bottom portion of the fitting concave portion, and the support member is held at least in the vertical direction by deformation of the hinge portion. The hinge portion is swingable, and the hinge portion can be rotated about a rotation axis substantially orthogonal to the axis of the support column in a state where the support column is inserted into the insertion recess. The struts are inserted into the opposite sides constituting the insertion recesses. When the left and right gripping pieces are expanded, the left and right gripping pieces are expanded more than a certain amount, and the expansion restricting portions as the left and right inner surfaces facing the concave portion are formed on the outer surfaces of the left and right gripping pieces. On the other hand, the rotation of the hinge part is restricted by abutting against the outer surfaces of the left and right gripping pieces, while the rotation of the hinge part is more than a certain level. An annular strut connector characterized by being made.   The hinge portion is configured with a shaft portion that connects the outer surface side of the bottom portion of the fitting recess and the bottom portion of the recess portion, the shaft portion can be bent and deformed in the vertical direction, and the shaft portion is rotated around its axis. The annular strut connector according to any one of claims 4 to 7, wherein the annular strut connector can be twisted and rotated.   9. The annular strut connector according to claim 8, wherein the shaft portion is configured as a cylindrical shaft portion.   In the case where the movable strut holding member is housed in the concave portion, the distal ends on both sides of the insertion recess of the movable strut holding member protrude from the inner peripheral surface portion or the outer peripheral surface portion of the connector main body. The annular strut connector according to any one of claims 4 to 9.   The annular strut connector according to claim 1, wherein the whole is integrally formed of synthetic resin.

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