JP6713277B2 - Joint structure, frame structure and tent structure - Google Patents

Description

The present invention relates to a joint structure, a frame structure and a tent structure, and more particularly to a joint structure that forms a frame structure by connecting and fixing frame members, a frame structure formed by the joint structure, and The present invention relates to a tent structure in which a awning is attached to a frame structure.

The tent can be installed outdoors and used, and after use, it can be folded and removed, so if you want to temporarily block the sun or rain, such as athletic meetings or meetings, or if you need an indoor space in an emergency in the event of a disaster Used for etc. The priority of the required performance of the tent is, firstly, that it is lightweight and easy to carry, secondly that it is excellent in assembling workability and storability, and thirdly that it has the required strength.

When using a tent during a disaster, use the tent properly according to the scale of the disaster. When the scale of a disaster is small, an air tent that is easy to install is used, while when the scale of a disaster is large (for example, in the case of a large earthquake), a tent using a frame structure with excellent stability is used. There are two types of frame structures for tents, one with an expanded structure type and one with an assembled structure type. However, since the entire frame structure of the expanded structure type is integrally connected by a hinge, its weight is heavy And the skeleton cannot be assembled. Moreover, if a defect occurs at one place in the frame structure, it may not be possible to assemble the entire frame structure.

On the other hand, in the assembled structure type frame structure, since each part can be divided separately, even a small number of people can assemble the frame structure. As a conventional technique relating to the frame structure of the assembled structure type, Patent Document 1 can be cited. Patent Document 1 discloses an F-type compact tent in which a plurality of pipe frames are combined in a roof shape. The pillar structure of this F-type compact tent can be assembled so that a ridge pipe, a girder pipe, a beam pipe, a gas pipe, and a pillar pipe can be separated. The joint part of each pipe has a fitting hole formed on the peripheral surface of the joint part at the outer end of one pipe, and the sleeve having an outer diameter approximately equal to the inner diameter of the pipe at the inner end of the other pipe. Has been inserted.

The two pipes are assembled by inserting the sleeve in one pipe into the other pipe and pressing the stopper pin when the stopper pin provided on the sleeve contacts the end surface of the other pipe. By inserting the sleeve into the pipe and inserting the sleeve into the pipe until the stopper pin is aligned with the fitting hole. The separation of these two pipes is performed by the reverse operation to the above, that is, the stopper pin is pushed in to release the fitting state from the fitting hole, and the sleeve in one pipe is pulled out from the other pipe.

Utility model registration No. 2501927

In the support structure of the tent disclosed in Patent Document 1, one pipe cannot be inserted into the other pipe unless one pipe and the other pipe are aligned with each other, and both pipes have substantially the same diameter. Because of the size, it was necessary to align both pipes fairly accurately and then connect both pipes. Therefore, there has been a demand for a configuration in which two pipes are connected more easily.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a joint structure capable of easily connecting frame members that are frames such as tents.

The present inventors have completed the present invention by earnestly researching a structure capable of easily connecting three or more frame members. A joint structure according to the present invention includes a receiving joint and a first insertion joint detachably coupled to the receiving joint, wherein the first insertion joint has a first frame member attached thereto. 1 mounting portion and a first insertion portion having a pair of side surfaces that are inclined so that a distance therebetween becomes narrower toward the lower side in a direction intersecting the axial direction of the first frame member, The receiving joint is provided between the second mounting portion to which the second frame member is mounted, the third mounting portion to which the third frame member is mounted, and between the second mounting portion and the third mounting portion. 1 receiving part into which the insertion part can be inserted, the receiving part, the one base part, the other base part provided apart from the one base part, and the one base part. The facing surface of the other base portion and a connecting portion that connects the facing surface of the other base portion to each other, and the second mounting is provided on the one base portion on a surface opposite to the facing surface of the base portion. parts are provided, wherein the other of the base portion, and the facing surface of the base portion and the third attachment portion on the opposite side are provided, at least a portion of the facing surface of said one of the base portion while the state with contacts at least a portion of at least a portion of the facing surface of the other of the base portion in contact with the other at least a portion of the pair of side surfaces of the pair of side surfaces, said first 2 Supporting the first insertion portion from below by the second mounting portion to which the frame material is mounted, the one base portion, the third mounting portion to which the third frame material is mounted, and the other base portion Is configured to.

According to the present invention, the receiving joint and the first inserting joint can be coupled by a simple operation of inserting the first inserting portion of the first inserting joint into the receiving portion of the receiving joint. Since the pair of side surfaces of the first insertion portion is in the shape Subomari mutual spacing narrower destination toward the lower side, downward from above the opposing surface of the opposing surfaces and the other of the base portion of the base portion of the hand upon insertion of the first insertion portion, the first insert in contact with at least a portion of the facing surfaces of the facing surface and the other of the base portion of the at least partially hand of the base portion of the pair of side surfaces of the first insertion portion Both of the pair of side surfaces of the section are supported from below. Since the first insertion portion is supported from the lower side in this way, the first insertion portion does not come off even when a load is applied to the first insertion portion. By connecting the receiving joint and the first insertion joint as described above, the three frame members of the first to third frame members can be easily connected.

In the above configuration, preferably, the connecting portion has a first insertion space into which the first inserting portion can be inserted, on one of the front and back surfaces of the connecting portion, and the other of the front and back surfaces of the connecting portion. such that the second insertion space is formed, connecting the center of one surface of the facing surface of the facing surface and the other of the base portion of the one of the base portion to the center of the other surface.

According to the above configuration, by inserting the first insertion portion of the first insertion joint into the second insertion space, the first insertion joint is oriented in the direction opposite to the case where the first insertion portion is inserted into the first insertion space. Can be installed. By thus providing the two insertion spaces (first and second insertion spaces), the degree of freedom in connecting the receiving joint and the first insertion joint can be increased.

In the above configuration, preferably, a second insertion joint removably coupled to the receiving joint is further provided, and the second insertion joint includes a fourth attachment portion to which a fourth frame member is attached, and the first insertion portion. A second insertion portion having the same shape as that of the second insertion space and insertable into the second insertion space.

According to the above configuration, since the insertion joints (first and second insertion joints) can be connected to the first and second insertion spaces of the receiving joint, respectively, the four first to fourth frame members can be connected. The frame material can be joined.

In the above configuration, preferably, the A the facing surface and the opposing surface of the other of the base portion of one of the base portion, of each other toward the lower side by a pair of side surfaces and substantially the same inclination angle of the first insertion portion The first insertion portion is supported from below in a state where the first insertion portion is inclined so as to have a narrow interval and faces the pair of side surfaces of the first insertion portion.

According to the above configuration, since the pair of side surfaces of the first insertion portion are inclined toward the lower side at substantially the same inclination angle as the facing surfaces of the pair of base portions, the pair of side surfaces of the first insertion portion are formed. the whole can be received by the opposing surface of the opposing surfaces and the other of the base portion of one of the base portion. By supporting the pair of side surfaces of the first insertion portion from the lower side in this manner, the first insertion portion is stabilized in the receiving portion, so that the first insertion portion can be prevented from rattling in the receiving portion.

In the above configuration, preferably, a fixture is further provided for fixing the first insertion portion and the receiving portion so that the first insertion portion does not come off from the receiving portion.

By fixing the first insertion portion inserted in the receiving portion with such a fixture, the connection between the receiving joint and the first insertion joint can be made difficult to come off.

The present invention is also a frame structure including a plurality of main frames forming an exoskeleton, a plurality of subframes connecting the mainframes, and the joint structure connecting the mainframes and the subframes. By using the joint structure, the main frame and the sub frame can be easily connected.

The present invention is also a tent structure including the frame structure and an awning mounted on the frame structure. Since the tent structure having the frame structure has a stable frame structure, a person can feel a sense of security and settle down easily when in a tent.

As described above, according to the joint structure of the present invention, it is possible to easily connect frames that are frames such as tents.

1 is a perspective view of a tent structure body according to Embodiment 1. FIG. FIG. 3 is a perspective view of the frame structure after removing the awning from the tent structure of FIG. 1. It is a front view of the main frame of FIG. It is a perspective view of a 1st insertion joint. It is a perspective view of a receiving joint. It is a front view which shows operation|movement when joining a 1st insertion joint to a receiving joint. It is the perspective view which looked at the joint structure diagonally from the upper side. It is the perspective view which looked at the joint structure from the slanting lower side. It is a perspective view of a fixed plate. It is the perspective view which looked at the joint structure from the lower side. It is sectional drawing of the coupling part of a joint structure. It is the figure which looked at what couple|bonded the 2nd insertion joint with respect to the receiving joint 6a of FIG. 10 from the lower side. FIG. 7 is a perspective view of a modified example of the receiving joint (corresponding to FIG. 5 of the first embodiment).

<Overall structure of tent structure>
Hereinafter, embodiments for carrying out the present invention will be described in detail with reference to the drawings.

FIG. 1 is a perspective view of the tent structure of this embodiment. As shown in FIG. 1, the tent structure 10 of this embodiment is installed outdoors to secure a space for awning or avoiding rain. The tent structure 10 includes a tent frame structure 10' (FIG. 2) and an awning 1 mounted on the frame structure 10'. When the tent structure 10 is not used, the awning 1 can be removed and then the frame structure can be disassembled and stored. The tent structure 10 shown in FIG. 1 is provided with the entrance/exit 2, but the form of the entrance/exit 2 is not particularly limited. The maximum size of the height of the tent structure 10 shown in FIG. 1 is about 3 m, and the size of the bottom surface of the tent structure 10 is about 6 m in length×12 m in width. The dimensions of the tent structure 10 shown in FIG. 1 are merely examples and can be changed as appropriate.

FIG. 2 is a perspective view of the frame structure of the tent structure after the awning 1 is removed from the tent structure of FIG. As shown in FIG. 2, the tent structure 10 of the present embodiment includes a plurality of main frames 3 forming a frame structure 10′ of the tent structure and a plurality of sub-frames 4 connecting the main frames 3 to each other. , Is provided. The main frame 3 corresponds to a skeleton that determines the overall shape of the tent structure. The plurality of main frames 3 have substantially the same outer shape, and are arranged at regular intervals. The sub-frame 4 is provided to increase the strength of the main frame 3 in the front-rear direction, and connects the joint structures 6 to be described later at the same position of the adjacent main frames 3. The axial length of the sub-frame 4 is substantially the same as the interval between the main frames 3.

FIG. 3 is a front view of the main frame of FIG. In the plan view shown in FIG. 3, each main frame 3 forms an arch having a shape that is cut in half by a diagonal line that connects opposing vertices of a substantially regular octagon. The frame material of the main frame 3 on the side in contact with the ground (lower side) spreads outward and inclines toward the ground (lower side), and leg portions 7 are provided at the end of the main frame 3 on the side in contact with the ground. Has been. The leg portion 7 has a base surface parallel to the ground so that the main frame 3 does not rattle, and the base surface is in contact with the ground. As shown in FIG. 3, the main frame 3 includes a frame member 8, a connecting structure 5 that linearly connects the frame members 8 and a joint structure 6 that obliquely connects the frame members 8 to each other. Has been done.

The frame member 8 has a basic structure of a skeleton such as a tent, and is a rod-shaped body made of metal and having a substantially square columnar shape whose surface is subjected to anticorrosion treatment such as painting. The material of the frame member 8 may be metal such as aluminum, resin, or wood. The frame member 8 has a substantially rectangular cross-sectional shape when the frame member 8 is cut along a plane perpendicular to its axial direction, and a groove portion 8m recessed inward at approximately the center of the two short sides of the rectangular member (see FIG. 4). The groove 8m extends parallel to the axial direction of the frame member 8. A fixture 30 (FIG. 8) described later is attached to the groove 8m so as to be slidable in the axial direction of the frame member 8.

As shown in FIGS. 2 and 3, the joint structure 6 connects the frame members 8 so that the angle between the frame members 8 in the main frame 3 is, for example, about 135°. Further, in the joint structure 6, the sub-frame 4 is attached perpendicularly to the surface formed by the main frame 3. The subframes 4 connect the adjacent mainframes 3 to each other. The detailed structure of the joint structure 6 will be described below.

<Detailed structure of joint structure>
The joint structure 6 can be attached with three or more frame members 8, and includes a receiving joint 6a and a first insertion joint 6b detachably coupled to the receiving joint 6a. FIG. 4 is a perspective view of the first insertion joint 6b, and FIG. 5 is a perspective view of the receiving joint 6a. 4 and 5, in order to clarify the structures of the receiving joint 6a and the first inserting joint 6b, the first to third frame members 8a, 8b, 8c are shown by dotted lines. In the following, the “first frame member 8a”, the “second frame member 8b”, the “third frame member 8c”, and the “fourth frame member 8d” are determined according to the mounting position of the frame member 8 with respect to the joint structure 6. However, the first to fourth frame members 8a to 8d have the same shape except that the mounting positions of the joint structure 6 are different.

In the following, the direction in which the bisector of the included angle formed by intersecting when the second frame member 8b and the third frame member 8c in FIG. 5 are extended in the axial direction extends is the vertical direction and is perpendicular to the vertical direction. The width direction is defined as the direction. Further, the state (the state shown in FIG. 7) when the receiving joint 6a and the first insertion joint 6b are coupled may be referred to as a "joint coupling state".

FIG. 6 is a front view showing an operation when the first insertion joint 6b is coupled to the receiving joint 6a, FIG. 7 is a perspective view of the joint structure seen from an obliquely upper side, and FIG. 8 is an oblique view of the joint structure. It is the perspective view seen from the lower side. As shown in FIGS. 4, 6 and 7, the first insertion joint 6b includes a base mounting portion 16, a first insertion portion 15 that is integrally provided on one surface of the base mounting portion 16, and a base mounting portion. 16 has a first attachment portion 9a provided on the side opposite to the first insertion portion 15.

The first attachment portion 9a is a portion to which the first frame member 8a is attached, and has a rectangular parallelepiped shape that is slightly smaller than the inside of the first frame member 8a. With such a shape, the first mounting portion 9a can be inserted inside the first frame member 8a. A screw hole is provided on the surface of the first mounting portion 9a, and by fixing the insertion portion of the first frame member 8a with a screw (fastener) in a state of being inserted into the first frame member 8a, The frame material 8a and the first mounting portion 9a can be integrated.

The base mounting portion 16 has an outer shape that is substantially the same as the outer shape of the cross section of the first frame member 8a perpendicular to the axial direction, and when the first frame member 8a is mounted on the first mounting portion 9a, the first frame member 8a This is a portion that comes into contact with the end surface of the material 8a. Since the base attachment portion 16 has substantially the same cross-sectional shape as the first frame member 8a, when the first frame member 8a is attached to the first attachment member 9a, the attachment portion (that is, the first frame member 8a and the foundation) is attached. Both members can be connected to each other without a step between the mounting portion 16). As a result, the joint between the first frame member 8a and the first insertion joint 6b can be made inconspicuous.

As shown in FIGS. 6 and 7, the first insertion portion 15 is a portion that is inserted into the receiving portion 11 of the receiving joint 6a, and as shown in FIGS. The two large and small flat plates are stacked to form an integrated shape. An upper surface of a larger flat plate (hereinafter referred to as "large flat plate 15a") of flat plates constituting the first insertion portion 15 and an upper surface of a smaller flat plate (hereinafter referred to as "small flat plate 15b"). Are in line with each other. Further, the base mounting portion 16 is integrally attached to the small flat plate 15b so that the upper surface of the small flat plate 15b and the upper surface of the base mounting portion 16 are flush with each other. Therefore, when the first frame member 8a is attached to the first attaching portion 9a, the upper surface of the first frame member 8a, the upper surface of the base attaching portion 16 and the upper surface of the first inserting portion 15 are flush with each other. Will be done. Regarding the thickness of each of these portions, as shown in FIG. 7, the large flat plate 15a, the small flat plate 15b, and the base mounting portion 16 have substantially the same thickness. The large flat plate 15a, the small flat plate 15b, and the base mounting portion 16 do not necessarily have to have substantially the same thickness, but may have different thicknesses.

As shown in FIG. 6, the large plane plate 15a has a pair of side surfaces 15a′ that are inclined so that the distance between them becomes narrower toward the lower side in the direction intersecting the axial direction of the first frame member 8a, The width of the lower surface of the large flat plate 15a is the same as the width of the base mounting portion 16. In the present embodiment, the pair of side surfaces 15a' are flat surfaces, but they do not necessarily have to be flat surfaces, and may be configured such that, for example, the distance between them becomes gradually narrower toward the lower side.

The small flat plate 15b has a pair of small side faces 15b' which are inclined parallel to the pair of side faces 15a' of the large flat plate 15a. The interval between the pair of small side surfaces 15b' is wider than the width of the base mounting portion 16 on the upper side and narrower than the width of the base mounting portion 16 on the lower side. That is, as shown in FIG. 7, when the first insertion joint 6b is viewed from above, the large flat plate 15a and the small flat plate 15b are wider than the base mounting portion 16, but as shown in FIG. When the 1-insertion joint 6b is viewed from the lower side, the small flat plate 15b is narrower than the base mounting portion 16. In the front view of FIG. 6, the small flat plate 15b and the base mounting portion 16 have the same width near the upper and lower centers of the base mounting portion 16. When the first insertion joint 6b is viewed from below, the base mounting portion 16 and the large flat plate 15a have substantially the same width.

In the present embodiment, the first insertion portion 15 has a configuration in which the large flat plate 15a and the small flat plate 15b are stacked, but the small flat plate 15b can be omitted, that is, the first insertion portion 15a only includes the large flat plate 15a. 15 may be configured.

The receiving joint 6a has the receiving part 11, the 2nd attachment part 9b, and the 3rd attachment part 9c, as shown in FIGS.

As shown in FIGS. 6 and 7, the receiving part 11 has a pair of base parts 14, a connecting part 12 connecting the base parts 14 to each other, and four supporting parts 13, and the receiving parts 11 are symmetrical by the connecting part 12. It is divided in two. A first insertion space 11a' into which the first insertion portion 15 can be inserted is formed on one of the front and back surfaces of the connecting portion 12, and a second insertion space 11b' is formed on the other surface of the connecting portion 12 on the front and back sides. Has been formed. That is, in FIG. 7, the first insertion space 11 a ′ has a connecting portion 12, a pair of supporting portions 13 drawn so as to be located on the front side of the connecting surface of the connecting portion 12, and a pair of base portions 14 of the drawing surface. Is a space surrounded by the front side (one side) of the. On the other hand, the second insertion space 11 b ′ has a connection portion 12, a pair of support portions 13 drawn so as to be located on the back side of the paper surface with respect to the connection portion 12, and a back side of the paper surface of the pair of foundation parts 14 ( It is a space surrounded by the part on the other side). The first insertion space 11a' and the second insertion space 11b' have substantially the same shape, and the upper side is open so that the insertion portion can be inserted. In the present embodiment, the lower sides of the first and second insertion spaces 11a' and 11b' are also open, but these lower sides may be closed. The 2nd insertion space 11b' is comprised so that the 2nd insertion part mentioned later may be received in the opposite direction when the 1st insertion part 15 is inserted in the 1st insertion space 11a'.

Each of the pair of base portions 14 has a facing surface 14a that faces each other such that the distance between the base portions 14 becomes narrower toward the lower side. The pair of opposed surfaces 14a are flat and are inclined at substantially the same inclination angle as the pair of side surfaces 15a' of the large flat plate 15a of the first insertion portion 15 such that the distance between them becomes narrower toward the lower side. ing. Since the first insertion portion 15 is inserted into the first insertion space 11a, the entire surfaces of the pair of side surfaces 15a′ of the large flat plate 15a of the first insertion portion 15 have a pair of side surfaces 15a′. It is possible to abut against the facing surface 14a of the base portion 14 and support (the large plane plate 15a of) the first insertion portion 15 from below.

The pair of side surfaces 15a′ and the pair of foundation portions 14 do not necessarily have to have the same inclination angle, and the pair of foundation portions 14 support the pair of side surfaces of the first insertion portion 15 from below. If it has, the form is not particularly limited. In addition, when the pair of side surfaces 15a′ of the first insertion portion 15 are configured such that the distance between the side surfaces 15a′ becomes gradually smaller toward the lower side, the facing surfaces 14a of the pair of base portions 14 also have the same shape. It is preferable that the distance between them is narrower toward the lower side.

The first insertion portion 15 is not limited to being inserted into the first insertion space 11a', but may be inserted into the second insertion space 11b'. By inserting the 1st insertion part 15 in the 2nd insertion space 11b', the 1st insertion joint 6b can be attached in the direction opposite to the case where the 1st insertion part 15 is inserted in the 1st insertion space 11a'. .. By thus providing the two insertion spaces (first and second insertion spaces 11a′ and 11b′), the first insertion joint 6b can be attached in two directions with respect to the receiving joint 6a, and thus The degree of freedom in coupling the 1-insertion joint 6b can be increased. That is, for example, in the frame structure shown in FIG. 2, when three frame members are attached to the joint structure 6 like the joint structure 6 located at the foremost side and the joint structure 6 located at the farthest side. Even if the attachment positions of the frame members are different, the three frame members can be attached by the same joint structure 6 of the present embodiment.

As shown in FIG. 7, the pair of base portions 14 are composed of two plate-shaped members that are provided apart from each other, and the central portions of the facing surfaces 14 a of the pair of base portions 14 are connected by the connecting portion 12. ing. Second and third mounting portions 9b and 9c are provided on the opposite sides of the facing surfaces 14a of the pair of base portions 14, respectively. The pair of base portions 14 are portions where the end surfaces of the second and third frame members 8b and 8c come into contact with each other, and have substantially the same outer diameter shape as the cross section perpendicular to the axial direction of the second and third frame members 8b and 8c. Has an outer diameter shape of. Since the pair of base portions 14 has the outer diameter shape, the second and third frame members 8b and 8c do not have a step at the mounting portion between the second and third frame members 8b and 8c and the base portion 14. Can be connected to the receiving joint 6a.

Each of the second and third mounting portions 9b and 9c has the same shape as the first mounting portion 9a, and the second and third mounting portions 9b and 9c are screwed to the screw holes 17 in the same manner as the first mounting portion 9a. The third frame members 8b and 8c are attached respectively. The second and third attachment parts 9b and 9c respectively have an angle of about 135° with respect to the axial direction of the second and third frame members 8b and 8c when the second and third frame members 8b and 8c are attached, respectively. It is provided on the pair of base portions 14 so as to be. In other words, when the facing surfaces of the pair of base portions 14 are extended, the pair of base portions 14 face each other so as to intersect at an angle of, for example, 45°. Note that the angle formed by the axial directions of the second and third frame members 8b and 8c is not limited to the above-mentioned case of 135°, and may be any angle. Further, two surfaces of the pair of base portions 14 on the opposite side and on the opposite side may be provided so that the axial directions of the second and third frame members 8b and 8c are linear.

The support portion 13 is provided at each end portion of the pair of base portions 14 so as to extend from one end portion of the one base portion 14 of the pair of base portions 14 toward the other base portion 14 in parallel with the connecting portion 12. There are four in total. By providing such a support portion 13, it is possible to hold down the side surface of the large flat plate 15a so that the large flat plate 15a of the first insertion portion 15 does not come off in the direction away from the connecting portion 12 when the joint is connected.

The facing surfaces 13a of the support portions 13 forming the first insertion space 11a′ are configured to be inclined at the same inclination angle as the pair of small side surfaces 15b′ of the small flat plate 15b of the first insertion portion 15. There is. Thus, in the jointed state of the joints, the entire surfaces of the facing surfaces 13a of the support portions 13 contact the pair of small side surfaces 15b' of the small flat plate 15b of the first insertion portion 15, and the small flat plate 15b can be supported from below. .. That is, in the joined state of the joint, the pair of side surfaces 15a′ of the large flat plate 15a of the first insertion portion 15 are received by the facing surfaces 14a of the pair of base portions 14, and the pair of small side surfaces 15b′ of the small flat plate 15b are supported. It is received by the pair of side surfaces of the portion 13. With these, both the large flat plate 15a and the small flat plate 15b can be supported from below. The facing surface 13a of the support portion 13 does not necessarily have to be configured to support the small flat plate 15b.

In addition to the first insertion joint 6b, a second insertion joint (not shown) having the same shape as the first insertion joint 6b may be attached to the receiving joint 6a. Since the second insertion joint has the same shape as the first insertion joint 6b shown in FIG. 4, a detailed description thereof will be omitted, but at least the fourth attachment portion (first portion of FIG. 4) to which the fourth frame member is attached. And a second insertion portion (corresponding to the first insertion portion 15 in FIG. 4) having the same shape as the first insertion portion 15. By attaching each of the first and second insertion joints to the receiving portion 11 of the receiving joint 6a, the four frame members of the first to fourth frame members 8a to 8d can be attached to the joint structure 6.

By installing the awning 1 shown in FIG. 1 on the frame structure 10′ of FIG. 2 using the joint structure 6 of the present embodiment, the first insertion joint 6b is suppressed from the upper side by the awning 1 and the first insertion joint 6b is held. It is possible to prevent the insertion joint 6b from coming off on the upper side. However, the fixing tool 30 may be provided to fix the first insertion joint 6b so as not to come off the receiving joint 6a even when the awning 1 is removed. Of course, the fixture 30 can be omitted.

As shown in FIG. 8, a fixture 30 is attached to the lower portion of the first frame member 8a so as to be slidable in the axial direction of the first frame member 8a.

FIG. 9 is a perspective view of a fixing plate 40 that constitutes the fixture 30, FIG. 10 is a perspective view of the joint structure seen from below, and FIG. 11 is a cross-sectional view of a joint portion of the joint structure. is there.

As shown in FIG. 11, the fixture 30 includes a fixing plate 40, a bolt 39, and a rotating portion 34.

As shown in FIG. 9, the fixing plate 40 has a rectangular fixing plate body 31, a pair of hooks 32, a through hole 33, and an extension 35.

The fixing plate body 31 has a length (width) slightly larger than the length (width) of the short side of the lower surface of the first frame member 8a, and is in contact with the lower surface of the first frame member 8a. Is.

As shown in FIG. 9, the pair of hook portions 32 are portions extending perpendicularly to the surface of the fixed plate body 31 from a pair of end faces in the width direction of the fixed plate body 31. In the state where the fixing plate 40 is attached to the first frame member 8a, the pair of hook portions 32 wrap around the side surface of the first frame member 8a. By attaching the fixing plate 40 in this manner, it is possible to prevent the pair of hook portions 32 from being caught on the side surfaces of the first frame member 8a and rotating the fixing plate 40 with respect to the first frame member 8a. ..

The through-hole 33 penetrates the front and back of the central portion of the fixed plate body 31 and is a portion into which the bolt 39 is inserted.

The extending portion 35 is a portion extending in the surface direction of the fixed plate body 31 with one end face in the longitudinal direction of the fixed plate body 31 as a starting point, and is a part of the pair of support portions 13 of the receiving joint 6a. The width is wider than the width between the lower ends of the facing surfaces 13a. As shown in FIG. 8, the extending portion 35 is attached to the first frame member 8a so that its tip end faces the receiving joint 6a.

The bolt 39 restrains the fixed plate 40 and the first frame member 8a together with the rotating portion 34 described below, and is provided integrally with the head portion 38 fitted into the groove portion 8m of the first frame member 8a. And a shaft portion 37 extending in the vertical direction from the head portion 38. The shaft portion 37 penetrates the groove portion 8m and the through hole 33 of the first frame member 8a, and the tip portion of the shaft portion 37 is fitted inside the rotating portion 34. The groove 8m of the first frame member 8a includes a groove for head sliding slightly larger than the head 38, and a groove for shaft sliding slightly smaller than the head 38 but slightly larger than the shaft 37. It is integrally provided in the axial direction of the first frame member 8a.

The rotating portion 34 is capable of tightening or loosening the bolt 39 by rotating the body of the operator, and is formed with a female screw portion which is fitted to the side surface of the shaft portion 37 of the bolt 39.

<How to attach the fixture 30>
To attach the fixture 30 to the first frame member 8a, first, the head portion 38 of the bolt 39 is fitted into the groove portion 8m of the first frame member 8a, and the shaft portion 37 protruding from the groove portion 8m of the first frame member 8a. Then, the through hole 33 of the fixing plate body 31 is inserted (FIG. 11). At this time, the fixed plate body 31 is brought into contact with the lower surface of the first frame member 8a so that the tip of the extending portion 35 of the fixed plate 40 faces the receiving joint 6a.

Next, by aligning the tip of the shaft portion 37 of the bolt 39 with the inner peripheral surface of the rotating portion 34 and rotating the rotating portion 34 to tighten the bolt 39, the first frame member 8a and the fixing plate 40 are overlapped with each other. Tighten a certain amount to. In this state, the bolt 39 is not completely tightened but is half tightened. Accordingly, the fixture 30 is attached to the first frame member 8a so as to be slidable in the axial direction of the first frame member 8a.

Next, the first insertion portion 15 of the first insertion joint 6b is inserted into the first insertion space 11a' of the receiving joint 6a to connect the first insertion joint 6b to the receiving joint 6a.

Then, as shown in FIGS. 10 and 11, the fixture 30 is slid to a position where the tip of the extending portion 35 of the fixture 30 comes into contact with the lower portion of the lower surface of the support portion 13 of the receiving joint 6a. As shown in FIG. 10, the rotating portion 34 is rotated and the bolt 39 is completely tightened in a state where the receiving joint 6a is inserted into the lower gap of the supporting portion 13, so that the first frame member 8a and the fixture 30 are fixed. And the first insertion joint 6b can be integrally fixed. Even when trying to remove the first insertion joint 6b in this state, the extending portion 35 of the fixture 30 engages with the lower surface of the support portion 13 of the receiving joint 6a, so that the first inserting joint 6b cannot be removed from the receiving joint 6a. .. In this way, the joint structure 6 can be securely connected. When removing the first insertion joint 6b from the receiving joint 6a, the rotating portion 34 is rotated to loosen the bolt 39, and the extending portion 35 of the fixture 30 is removed from the lower surface of the supporting portion 13 of the receiving joint 6a.

As in the above-described embodiment, the fixture 30 is not limited to the form attached to the first frame member 8a, but may be attached to the first insertion portion 15, for example. That is, by directly fixing the first inserting portion 15 and the receiving portion 11 with the fixture 30, it is possible to fix the first inserting portion 15 so as not to come off the receiving portion 11. Even if fixed in this way, the connection state of the first insertion joint 6b and the receiving joint 6a can be made difficult to come off.

FIG. 12 is a view of the receiving joint 6a of FIG. 11 to which a second insertion joint is further connected, as viewed from below. As shown in FIG. 12, by connecting the second insertion joint to the receiving joint 6a and attaching the fourth frame member 8d to the second insertion joint, the first to fourth frame members 8a to 8d can be attached respectively. it can. By rotating the rotating portion 34 of the fixture 30 and completely tightening the bolt 39 in this attached state, it is possible to make it difficult to remove the state in which the first to fourth frame members 8a to 8d are integrally coupled.

[Effect]
Next, the joint structure 6 according to the present embodiment and its function and effect will be described.

As shown in FIG. 6, the joint structure 6 of the above embodiment includes a receiving joint 6a and a first insertion joint 6b detachably coupled to the receiving joint 6a. The joint 6b is a pair of first mounting portion 9a to which the first frame member 8a is attached, and a pair of members inclined in a direction intersecting with the axial direction of the first frame member 8a such that the distance between them becomes narrower toward the lower side. A first insertion portion 15 having a side surface 15a' of the second attachment portion 6b, and the receiving joint 6a has a second attachment portion 9b to which the second frame member 8b is attached and a third attachment portion 9c to which the third frame member 8c is attached. And a receiving portion 11 that is provided between the second attaching portion 9b and the third attaching portion 9c and into which the first inserting portion 15 can be inserted, and the receiving portion 11 is provided so as to be separated from each other. Has a base portion 14 and a connecting portion 12 that connects the facing surfaces 14a of the pair of base portions 14 to each other, and at least a part of the facing surface 14a of the pair of base portions 14 is at least a part of the pair of side surfaces 15a'. Since it is configured to support the first insertion portion 15 from the lower side in a state of being in contact with the receiving joint, the receiving joint can be simply operated by inserting the first inserting portion 15 into the receiving portion 11 of the receiving joint 6a. 6a and the 1st insertion joint 6b can be connected. Further, since the pair of side surfaces 15a′ of the first insertion portion 15 have a tapered shape in which the distance between them becomes narrower toward the lower side, the first insertion portion 15a′ faces downward from the upper side of the facing surface 14a of the pair of base portions 14. When the first insertion portion 15 is inserted, at least a part of the pair of side surfaces 15a′ of the first insertion portion 15 comes into contact with at least a part of the facing surfaces 14a of the pair of base portions 14 and the pair of side surfaces 15a of the first insertion portion 15. Since all of' are supported from the lower side, the first insertion section 15 cannot be removed downward even if a load is applied to the first insertion section 15. By thus coupling the receiving joint 6a and the first insertion joint 6b, the three frame members 8 of the first to third frame members 8a, 8b, 8c can be easily connected.

Further, in the above-described embodiment, the connecting portion 12 has the first inserting space 11a′ into which the first inserting portion 15 can be inserted, on one of the front and back surfaces of the connecting portion 12, and the other surface of the front and back of the connecting portion 12. Since the second insertion space 11b' is formed in the first insertion joint 6b, the first insertion joint 6b is connected from the center of one of the facing surfaces 14a of the pair of bases 14 to the center of the other surface. By inserting the first insertion portion 15 into the second insertion space 11b′, the first insertion joint 6b can be attached in the direction opposite to the case where the first insertion portion 15 is inserted into the first insertion space 11a′. it can. By thus providing the two insertion spaces (the first and second insertion spaces 11a' and 11b'), it is possible to increase the degree of freedom of connection between the receiving joint 6a and the first insertion joint 6b.

Further, in the above-described embodiment, by further including a second insertion joint (not shown) having a second insertion portion having the same shape as the first insertion portion 15, the first and second insertion spaces 11a′ of the receiving joint 6a, Since the insertion joints (first and second insertion joints) can be connected to 11b′, respectively, the four frame members 8 of the first to fourth frame members 8a to 8d can be joined.

Further, in the above-described embodiment, the facing surfaces 14a of the pair of base portions 14 are tilted at substantially the same tilt angle as the pair of side surfaces 15a′ of the first insertion portion 15 so that the distance between them becomes narrower toward the lower side. Since the first insertion portion 15 is supported from below in a state of facing the pair of side surfaces 15 a ′ of the first insertion portion 15, the inclination angle of the pair of side surfaces 15 a ′ of the first insertion portion 15 is equal to the pair of base portions 14 a. Since the lower surfaces are inclined at substantially the same inclination angle as the facing surfaces 14a, the pair of side surfaces 15a' of the first insertion portion 15 can be entirely received by the facing surfaces 14a of the pair of base portions 14. By thus supporting the pair of side surfaces 15a' of the first insertion portion 15 from below, the first insertion portion 15 is stabilized in the receiving portion 11, so that the first insertion portion is prevented from rattling in the receiving portion. can do.

In the above embodiment, a fixture 30 is further provided for fixing the first insertion portion 15 and the receiving portion 11 so that the first insertion portion 15 does not come off from the receiving portion 11. Then, by fixing the first insertion portion 15 inserted into the receiving portion 11 with the fixture 30, it is possible to make the coupling between the receiving joint 6a and the first insertion joint 6b difficult to come off.

In the frame structure of the above-described embodiment, a plurality of main frames 3 forming the exoskeleton of the tent structure 10, a plurality of subframes 4 connecting the mainframes 3 to each other, and the mainframe 3 and the subframe 4 are connected. Since the joint structure 6 is included, the main frame 3 and the sub-frame 4 can be easily connected by using the joint structure 6.

The tent structure 10 of the present embodiment includes the frame structure 10′ and the awning 1 mounted on the frame structure 10′, so that the frame structure is stable and a person is a tent structure. There is a sense of security and calmness when you are inside.

<Modification>
FIG. 13 is a perspective view (corresponding to FIG. 5 of the first embodiment) of a modified example of the receiving joint 6a in the above embodiment. The receiving joint 6a of this modification is the same as the receiving joint of the above embodiment except that the position of the connecting portion 12 is different. That is, in the above-described embodiment, the connecting portion 12 connects the center of one of the facing surfaces 14a of the pair of bases 14 to the center of the other surface, but in this modification, The connecting portion 12 connects the end faces of one of the facing faces 14a of the pair of bases 14 to the end faces of the other faces. Therefore, in the above-described embodiment, the receiving portion 11 is formed with the first and second insertion spaces 11a and 11b', but in this modification, the receiving portion 11 is formed with only the first insertion space. By configuring the receiving joint 6a in this way, similarly to the above-described embodiment, the receiving joint 6a and the first insertion portion 15 can be simply inserted by inserting the first insertion portion 15 into the receiving portion 11 of the receiving joint 6a. The joint 6b can be connected. Further, since the pair of side surfaces 15a′ of the first insertion portion 15 has a tapered shape in which the distance between the pair of side surfaces 15a′ becomes narrower toward the lower side, the first insertion portion faces downward from the upper side of the facing surfaces 14a of the pair of base portions 14. When the first insertion portion 15 is inserted, at least a part of the pair of side surfaces 15a′ of the first insertion portion 15 comes into contact with at least a part of the facing surfaces 14a of the pair of base portions 14 and the pair of side surfaces 15a of the first insertion portion 15. Since all of' are supported from the lower side, the first insertion section 15 cannot be removed downward even if a load is applied to the first insertion section 15. By thus coupling the receiving joint 6a and the first insertion joint 6b, the three frame members 8 of the first to third frame members 8a, 8b, 8c can be easily connected.

1 awning 3 main frame 4 subframe 6 joint structure 6a receiving joint 6b first insertion joint (second insertion joint)
8a, 1st frame material (4th frame material)
8b 2nd frame material 8c 3rd frame material 8d 4th frame material 8m Groove part 9a 1st mounting part (4th mounting part)
9b 2nd attachment part 9c 3rd attachment part 10 Tent structure 10' Frame structure 11 Receiving part 11a' 1st insertion space 11b' 2nd insertion space 12 Connection part 13 Support part 13a Opposed surface 14 Foundation part 14a Opposed surface 15 Insertion Part 15a Large flat plate 15a' A pair of side faces 15b Small flat plate 15b' A pair of small side faces 16 Foundation mounting part 17 Screw hole 30 Fixing device 31 Fixing plate main body part 33 Through hole 34 Rotating part 40 Fixing plate

Claims (7)

A joint structure comprising a receiving joint and a first insertion joint removably coupled to the receiving joint,
The first insertion joint has a pair of first mounting portions to which the first frame member is mounted and a pair of slanted members so that the distance between them becomes narrower toward the lower side in a direction intersecting the axial direction of the first frame member. A first insertion portion having a side surface of
The receiving joint is provided between the second mounting portion to which the second frame member is mounted, the third mounting portion to which the third frame member is mounted, and between the second mounting portion and the third mounting portion, A receiving portion into which the first insertion portion can be inserted,
The receiving part, one base part, the other base part provided apart from the one base part, the facing surface of the one base part and the facing surface of the other base part to each other. And a connecting portion for connecting,
The one base portion is provided with the second attachment portion on a surface opposite to the facing surface of the base portion,
The other base portion is provided with the third attachment portion on a surface opposite to the facing surface of the base portion,
Of at least part of the pair of side surfaces of the facing surface of the other of the base portion with at least a portion of the facing surface of the base portion of the one contacts the at least a portion of one of said pair of side surfaces A second mounting portion to which the second frame member is mounted, the one base portion, the third mounting portion to which the third frame member is mounted, and the other A joint structure configured to support the first insertion portion from below by a base portion . The connecting portion has a first insertion space into which the first inserting portion can be inserted, formed on one surface of the front and back surfaces of the connecting portion, and a second insertion space formed on the other surface of the front and back surface of the connecting portion. in so that the joint structure according to claim 1 for connecting from the center of one surface of the facing surface of the facing surface and the other of the base portion of the one of the base portion to the center of the other surface .. Further comprising a second insertion joint detachably coupled to the receiving joint,
The said 2nd insertion joint has the 4th attachment part to which a 4th frame material is attached, and the 2nd insertion part which is the same shape as the said 1st insertion part, and can be inserted in the said 2nd insertion space. The joint structure described. Wherein A the facing surface and the opposing surface of the other of the base portion of one of the base portion, inclined to the mutual spacing as the lower of a pair of sides and substantially the same inclination angle of the first insertion portion is narrowed Then, the joint structure according to any one of claims 1 to 3, which supports the first insertion portion from below in a state of facing the pair of side surfaces of the first insertion portion. The joint structure according to any one of claims 1 to 4, further comprising a fixture that fixes the first insertion portion and the receiving portion so that the first insertion portion does not come off the receiving portion. A plurality of main frames forming the exoskeleton,
A plurality of subframes connecting the mainframes to each other,
A frame structure including the joint structure according to any one of claims 1 to 5, which connects the main frame and the subframe. A tent structure comprising the frame structure according to claim 6 and an awning mounted on the frame structure.