Frame joint and its frame rack

Abstract

To provide a frame joint for which exchanges of partial members are enough in the case of damage and which is capable of reducing manufacture cost of a metal mold, etc., and a frame rack which can be assembled simple using the frame joint but of which the strength is high.SOLUTION: The present invention relates to a frame joint which is interposed between a plurality of frames and connects the plurality of frames. The frame joint comprises: a joint body part in a polygonal shape; and a frame connection part 130 protruding on a frame connection surface where the frames are connected. The joint body part is formed by joining a plurality of divided members in the substantially same shape, and each divided member includes a projection and streak groove which are vertical to the frame connection surface. The projection of one divided member is fitted into the streak groove of the other divided member, and the streak groove of the one divided member is fitted to the projection of the other divided member, thereby joining the divided members.SELECTED DRAWING: Figure 10

Description

[Technical field]

[0001] The present invention relates to a frame joint that is interposed between and connects a plurality of frames, and a frame rack that is assembled from the frame joint and the frames. [Background technology]

[0002] Frame joints that connect multiple frames and frame racks assembled from such frame joints and frames are well known, and examples of such frame racks include those described in Patent Documents 1 and 2.

[0003] Such conventional frame joints were single members, and even a small damage required the entire joint to be replaced. In addition, the connection between the conventional frame joint and the frame required screws, which was one of the causes of distortion of the frame rack. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Patent Publication 2020-55350 "Frame Joint" [Patent Document 2] JPA 04-079771 "Cart-based corner joint" DISCLOSURE OF THEINVENTION [Problem to be solved by the invention]

[0006] Therefore, an object of the present invention is to provide a frame joint which is constructed by combining multiple components so that in the event of damage, only some of the components can be replaced, and which has the same shape for the multiple components, thereby reducing the manufacturing costs of molds, etc., and a frame rack which is easily assembled using this frame joint yet has high strength. [Means for solving the problem]

[0007] In order to achieve the above object, a frame joint of the present invention has the following configuration. In other words, it is a frame joint that is interposed between and connects multiple frames, and comprises a polyhedral joint main body and a frame connecting portion that protrudes from the frame connecting surface to which the frames are connected, and the joint main body is formed by joining multiple divided members of approximately the same shape, and each divided member has a protrusion and groove perpendicular to the frame connecting surface, and the divided members are joined by fitting the protrusion of one divided member into the groove of the other divided member and fitting the groove of one divided member into the protrusion of the other divided member.

[0008] Here, as a typical embodiment, the joint main body may be a regular hexahedron, the divided parts may be two, a first divided part and a second divided part, each of the first divided part and the second divided part may be provided with one frame connecting surface, and the two frame connecting surfaces may be perpendicular to each other.

[0009] Similarly, the joint main body may be a regular hexahedron and the divided parts may be three, a first divided part, a second divided part, and a third divided part, and the protrusion of the first divided part may be fitted into a compound groove formed by the combination of the groove of the second divided part and the groove of the third divided part, while the protrusion of the second divided part may be fitted into a compound groove formed by the combination of the groove of the third divided part and the groove of the first divided part, and the protrusion of the third divided part may be fitted into a compound groove formed by the combination of the groove of the first divided part and the groove of the second divided part, and one frame connecting surface may be provided on each of the first divided part, the second divided part, and the third divided part, and the three frame connecting surfaces may be perpendicular to each other.

[0010] In addition, either a convex portion or a concave portion may be formed on the non-connecting surfaces of the frames, with the convex portion being shaped to roughly match the concave portion, thereby contributing to stable alignment of the frame joints.

[0011] The frame rack of the present invention has the following configuration. That is, it is a frame rack assembled with the above-mentioned frame joint and a frame connected to the frame connecting portion, characterized in that the frame is approximately rectangular and prism-shaped, the end of the frame has an open hollow portion, and the frame connecting portion has a protrusion that fits into the hollow portion of the frame end.

[0012] Here, a groove may be provided on the ridge of the joint main body, and a linear groove along the longitudinal direction may be provided on the outer surface of the frame, so that when the joint main body and the frame are connected, both grooves are arranged in a continuous straight line and a plate-shaped body can be placed in the groove, thereby contributing to the assembly of the rack. Effect of the Invention

[0013] The present invention has the advantages of reducing manufacturing costs and improving user convenience. [Brief description of the drawings]

[0014] [Figure 1] FIG. 2 is a perspective view of the right side and bottom side of the frame connection surface side of the frame joint of one embodiment according to the present invention; [Diagram 2] FIG. 1 is a perspective view of the right side and upper side of the same. [Diagram 3] FIG. 1 is a perspective view of the left side and upper side of the same. [Figure 4] FIG. 1 is a front view of a frame connection surface side of a divided member of a frame joint according to an embodiment of the present invention; [Diagram 5] Right side view of the same [Figure 6] Bottom view of the same [Figure 7] 11 is a perspective view of the right side and bottom side of the same. [Figure 8] FIG. 1 is a perspective view of the right side and upper side of the same. [Figure 9] FIG. 1 is a perspective view of the left side and upper side of the same. [Figure 10] FIG. 2 is a perspective view of the right side and bottom side of the rear side of the frame connecting surface of the first embodiment; [Figure 11] FIG. 2 is a perspective view of the left side and upper side of the rear side of the frame connecting surface of the first embodiment; [Figure 12]Perspective view of the right side and near the bottom surface on the frame connection surface side of the frame joint of another embodiment [Figure 13] Same, perspective view of the left side and near the bottom surface [Figure 14] Same, perspective view of the right side and near the upper surface [Figure 15] Same, perspective view of the left side and near the upper surface on the back side of the frame connection surface [Figure 16] Front view of the back side of the frame connection surface of the split member of the frame joint of another embodiment according to the present invention [Figure 17] Same, right side view [Figure 18] Same, top view [Figure 19] Same, perspective view of the right side and near the bottom surface on the frame connection surface side [Figure 20] Same, perspective view of the left side and near the bottom surface [Figure 21] Same, perspective view of the left side and near the bottom surface on the back side of the frame connection surface [Figure 22] Same, perspective view of the left side and near the upper surface [Figure 23] Same, perspective view of the right side and near the upper surface [Figure 24] Front view of an embodiment of the frame [Diagram 25] Same, plan view [Figure 26] Same, perspective view [Figure 27] Perspective view of a frame rack of an embodiment according to the present invention [Figure 28] Perspective explanatory view of the frame showing the assembled state of the frame rack of FIG. 27 [Figure 29] Perspective explanatory view of the frame joint showing the assembled state of the frame rack of FIG. 27 [Diagram 30] Perspective view of the frame rack with panel showing the state where the panel is fitted to the frame rack of FIG. 27

Best Mode for Carrying Out the Invention

[0015] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. Here, typical examples of the joint body, the frame connecting portion, and the frame are given, but their shapes and forms can be modified within the scope of the present application, and conventional publicly known techniques can be appropriately applied to elements other than the gist of the present application, such as fastening and adhesion.

[0016] 1-3 are respectively a right side and bottom perspective view, a right side and top perspective view, and a left side and top perspective view of the frame connecting surface side of a frame joint of one embodiment according to the present invention. Note that the terms left, right, top and bottom are used in relation to each other in FIG. 1-3.

[0017] The frame joint of the present invention is interposed between multiple frames and connects the multiple frames together. The frame joint comprises a polyhedral joint body (10) and a frame connecting portion (30) that protrudes from a frame connecting surface (11) that is the outer surface of the joint body (10) and to which the frames are connected.

[0018] In this embodiment, a regular hexahedron is taken as an example of the polyhedral shape of the joint body 10. However, as the polyhedral shape, a regular tetrahedron, a regular octahedron, a triangular pyramid, a quadrangular pyramid, a quadrangular truncated pyramid, a parallelepiped, etc. can be used similarly depending on the application.

[0019] In this embodiment, an example in which the number of frame connecting surfaces (11) is two will be given. However, the number of frame connecting surfaces (11) can be from 2 to the number of surfaces of the joint body (10).

[0020] In this embodiment, an example is given in which the two frame connection surfaces (11) are perpendicular to each other. However, the angle between the two frame connecting surfaces (11) may be 30°, 45°, 60°, 120°, 150°, etc., depending on the application.

[0021] The joint body (10) is formed by joining a plurality of divided members of substantially the same shape.

[0022] In this embodiment, an example in which the number of divided members is two will be given. That is, there are two divided members, a first divided member (100) and a second divided member (200), and each divided member (100), (200) is provided with one plate-shaped frame connecting surface (101), (201), and each frame connecting surface (101), (201) is provided with one frame connecting portion (130), (230). The number of divided members can range from 2 to the number of faces of the joint body (10).

[0023] Figures 4-11 are respectively a front view, right side view, bottom view, a perspective view of the right side and near the bottom, a perspective view of the right side and near the top, a perspective view of the left side and near the top, a perspective view of the right side and near the bottom on the back side of the frame connecting surface, and a perspective view of the left side and near the top on the back side of the frame connecting surface of the first separate member (100), which is a separate member of a frame joint in one embodiment of the present invention.

[0024] In this embodiment, the first divided member (100) and the second divided member (200) have the same shape. However, in areas where it does not interfere with the joining of the first separate member (100) and the second separate member (200), for example, there may be a difference in the length of the frame connecting portion (130) and the frame connecting portion (230), the shapes of the first separate member (100) and the second separate member (200) may differ.

[0025] Two plate-like outer surfaces (103) and (104) are provided perpendicular to two adjacent sides of the back surface (102) of the frame connecting surface (101) of the first divided member (100). When the first separate member (100) and the second separate member (200) are joined, the frame connecting surface (101) and the two outer surfaces (103) and (104) of the first separate member (100) are joined to the frame connecting surface (201) and the two outer surfaces (202) and (203) of the second separate member (200) to form six surfaces of the joint main body (10).

[0026] The first separate member (100) has a rear surface (102) of the frame connecting surface (101) with a plurality of vertical protrusions formed thereon. A part of the cavity where no protrusions are provided acts as a groove, and the protrusions of the first separate member (100) fit into the grooves of the second separate member (200) and the protrusions of the second separate member (200) fit into the grooves of the first separate member (100), thereby joining the first separate member (100) and the second separate member (200).

[0027] In this embodiment, two ridges are provided, but the number is arbitrary.

[0028] Although each protrusion is flat, it may be curved or uneven as long as it is perpendicular to the frame connecting surface (101). It may be hollow or solid. It may be continuous or discontinuous.

[0029] The first ridge (110), which is one of the ridges in the illustrated example, is composed of a rectangular parallelepiped plate (110a) and a rectangular parallelepiped plate (110b). The rectangular parallelepiped plates (110a) and (110b) are separate from each other, but they may be a continuous, integrated unit. There is a cavity between the rectangular parallelepiped plates (110a) and (110b) and the outer surfaces (103) and (104), but this cavity does not have to exist. In other words, the first ridge (110) is substantially rectangular.

[0030] The second ridge (111), which is another ridge in the illustrated example, is composed of a rectangular parallelepiped plate (111a), a rectangular parallelepiped plate (111b), and a rectangular parallelepiped plate (111c). A cavity is formed between the rectangular parallelepiped plate (111a) and the rectangular parallelepiped plate (111c), but this cavity does not have to be present. In other words, the second ridge (111) is also substantially rectangular.

[0031] In the illustrated example, there is a triangular protrusion (112) composed of an isosceles triangular plate (112a) that contacts the rectangular plate (111c) of the second ridge (111), an isosceles triangular plate (112b) that contacts the rectangular plates (110a) and (110b) of the first ridge (110), and a plate (112c) connecting the plates (112a) and (112b). However, this does not function as a ridge, but rather functions in the same way as a groove (52) (described below) that is a component of the frame rack.

[0032] Here, a roughly rectangular parallelepiped cavity surrounded by the second ridge (111), the outer surface (104), an opening surface facing the outer surface (103), and an opening surface facing the outer surface (104) functions as a first groove (120).

[0033] A substantially rectangular parallelepiped cavity surrounded by the second ridges (111), the first ridges (110), the outer surface (103), and the triangular projections (112) functions as a second groove (121).

[0034] To join the first separate member (100) to the second separate member (200), the frame connecting surface (101), outer surface (103), and outer surface (104) of the first separate member (100) are faced toward the outer surface (203), outer surface (202), and frame connecting surface (201) of the second separate member (200), respectively, and the frame connecting surface (101) of the first separate member (100) is moved in a direction perpendicular to the frame connecting surface (101). As a result, the first ridge (110) of the first separate member (100) fits into the first groove of the second separate member (200), and the second ridge (111) of the first separate member (100) fits into the second groove of the second separate member (200).

[0035] In this embodiment, two grooves are provided, but the number is arbitrary. A plurality of protrusions may fit into one groove, and a single protrusion may fit into a plurality of grooves.

[0036] Furthermore, the shapes and positions of the ridges and grooves are arbitrary as long as they fit together.

[0037] 12-23 show another embodiment, the main difference from the above embodiment being that the number of divided members is changed from two to three, but the basic structure is the same.

[0038] Figures 12-15 are respectively a perspective view of the right side and bottom side of the frame connecting surface side of a frame joint of a different embodiment, a perspective view of the left side and bottom side, a perspective view of the right side and top side, and a perspective view of the left side and top side of the reverse side of the frame connecting surface.

[0039] In this embodiment, the divided parts are three parts, a first divided part (150), a second divided part (250), and a third divided part (350), which are all identical in shape. Each divided part (150), (250), (350) is provided with one plate-shaped frame connecting surface (151), (251), (351), each of which is provided with one frame connecting portion (180), (280), (380). Furthermore, each of the frame connecting surfaces (151), (251), (351) has an outer surface (153), (252), (352) that is erected perpendicular to the frame connecting surfaces (151), (251), (351). By joining the three divided members (150), (250), (350) together with the three frame connecting surfaces (151), (251), (351) constituting the frame connecting surface (51) perpendicular to one another, a regular hexahedral joint main body (50) consisting of the three frame connecting surfaces (151), (251), (351) and three outer surfaces (153), (252), (352) is formed.

[0040] Figures 16-23 are respectively a front view, right side view, top view, a perspective view of the right side and bottom side of the frame connecting surface side, a perspective view of the left side and bottom side, a perspective view of the left side and bottom side, a perspective view of the left side and top side, and a perspective view of the right side and top side of the frame connecting surface side of the first separate member (150), which is a separate member of a frame joint in another embodiment of the present invention.

[0041] The first separate member (150) has a rear surface (152) of the frame connecting surface (151) with vertical protrusions (160), (161), (162), (163), (164) formed thereon. The rib 160 is hollow and generally rectangular, and the four ribs 161, 162, 163, 164 are plate-like, the four ribs 161, 162, 163, 164 intersect to form a generally cross shape, and the end face of the rib 161 is continuous with the side face of the rib 160. The rib 160 is higher than the four ribs 161, 162, 163, 164.

[0042] Because the four ridges (161), (162), (163), and (164) are lower than the ridge (160), there are gaps between and above the four ridges (161), (162), (163), and (164), which form first grooves (170). In addition, a roughly rectangular gap where none of the ridges (160), (161), (162), (163), and (164) are located forms a second groove (171).

[0043] To join the first separate member (150) and the second separate member (250), the protrusion (160) of the first separate member (150) is fitted into the first groove (170) and the second groove (171), and the protrusions (161), (162), (163), and (164) are fitted into the second groove (171). At this time, the short side (160a) of the protrusion (160) of the first separate member (150) abuts against the long side (160b) of the protrusion (160) of the second separate member (250), the end face (164a) of the protrusion (164) of the first separate member (150) abuts against the long side (160b) of the protrusion (160) of the second separate member (250), and the side (162a) of the protrusion (162) of the first separate member (150) abuts against the side (163a) of the protrusion (163) of the second separate member (250).

[0044] To join the assembly of the first and second separate members (150) and (250) to the third separate member (350), the protrusion (corresponding to 160) of the third separate member (350) is fitted into the first groove (170) and the second groove (171) of the first separate member (150) and the first groove (170) of the second separate member (250), and the protrusions (corresponding to 161), (162), (163), and (164) of the third separate member (350) are fitted into the second groove (171) of the first separate member (150) and the second groove (171) of the second separate member (250). At this time, the short side surface (corresponding to 160a) of the protrusion (corresponding to 160) of the third separate member (350) comes into contact with the long side surface (corresponding to 160b) of the protrusion (corresponding to 160) of the second separate member (250), and the long side surface (corresponding to 160b) of the protrusion (corresponding to 160) of the third separate member (350) comes into contact with the short side surface (corresponding to 160a) of the protrusion (corresponding to 160) of the first separate member (150). ), the end face (corresponding to 163a) of the protrusion (163) of the third separate member (350) abuts against the side face (162a) of the protrusion (162) of the first separate member (250), and the side face (162a) of the protrusion (162) of the third separate member (350) abuts against the side face (163a) of the protrusion (163) of the second separate member (250).

[0045] 24-26 are front, top and perspective views, respectively, of one embodiment of a frame. The frame (90) of this embodiment is in the shape of a hollow rectangular prism, and has four openings (91) on both ends. A plurality of frames (90) are connected by frame joints by inserting protruding frame connecting portions (30)(80) into hollow portions (92) inside the respective openings (91). The frame (90) and the frame connecting portions (30) and (80) may have any shape as long as they can be connected to each other.

[0046] Figure 27 is an oblique view of a frame rack of one embodiment, Figure 28 is an oblique explanatory view of a frame showing the assembled state of the frame rack of Figure 27, Figure 29 is an oblique explanatory view of a frame joint showing the assembled state of the frame rack of Figure 27, and Figure 30 is an oblique view of a frame rack with a panel showing the state in which a panel has been fitted into the frame rack of Figure 27. As shown in Figure 28, frames (90) are placed on all of the ridges of the rectangular parallelepiped, and as shown in Figure 29, frame joints shown in Figure 12-15 are placed on all of the corners. By connecting these together, a frame rack can be assembled as shown in Figure 27.

[0047] In this embodiment, the outer surface of the frame (90) is provided with a linear groove (93) along the longitudinal direction, and a similar groove (52) is provided on the ridge portion of the joint main body portion (50). When the frame connecting portion (80) and the frame (90) are connected, both grooves (93) and (52) are arranged in a continuous straight line, and a plate-shaped panel can be installed there, as shown in Figure 30.

[0048] In this embodiment, either a convex portion (53) or a concave portion (54) is formed on the outer surface of the joint body portion (50) on the non-frame connecting surface that is not connected to the frame (90). The convex portion (53) and the concave portion (54) have shapes that approximately match, and by fitting the convex portion (53) into the concave portion (54), the non-frame connecting surface with the convex portion (53) and the non-frame connecting surface with the concave portion (54) are in close contact with each other, making it possible to stably arrange multiple frame racks side by side in close contact with each other. [Industrial Applicability]

[0049] INDUSTRIAL APPLICABILITY The present invention contributes to the widespread use of frame joints and frame racks, and is of great industrial applicability. [Explanation of symbols]

[0050] 10. Joint body 11 Frame connection surface 30 Frame connection part 50 Joint body 51 Frame connection surface 52 Groove 53 Convex 54 Recess 80 Frame connection part 90 frames 91 Aperture 92 Cavity 93 Groove 100 First divided member 101 Frame connection surface 102 Back side of frame connection surface 103, 104 External surface 110 First protrusion 110a, 110b rectangular parallelepiped plate 111 Second protrusion 111a, 111b, 111c rectangular parallelepiped plate 112 triangular protrusion 112a, 112b, 112c board 120 Article 1 Groove 121 Article 2 Groove 130 Frame connection part 150 First division member 151 Frame connection surface 152 Back side of frame connection surface 153 Exterior 160 protrusion 160a short side 160b long side 161, 162 protrusions 162a side 163 protrusion 163a side 164 protrusion 170 Article 1 Groove 171 Article 2 Groove 180 Frame connection part 200 Second divided member 201 Frame connection surface 202, 203 External surface 230 Frame connection part 250 Second division member 251 Frame connection surface 252 Exterior 280 Frame connection part 350 Third division member 351 Frame connection surface 352 Exterior 380 Frame connection part

Claims

1. A frame joint that is interposed between a plurality of frames and connects the plurality of frames, A polyhedral joint body; a frame connecting portion protruding from a frame connecting surface to which the frames are connected; The joint body is formed by joining a plurality of divided members having substantially the same shape, Each divided member has a protrusion and a groove perpendicular to the frame connection surface, The divided members are joined by fitting the protrusions of one divided member into the grooves of the other divided member and by fitting the grooves of one divided member into the protrusions of the other divided member, The joint body is a regular hexahedron, The divided members are three, i.e., a first divided member, a second divided member, and a third divided member; The protrusion of the first divided member is fitted into a compound groove formed by a combination of the groove of the second divided member and the groove of the third divided member, The protrusion of the second divided member is fitted into a compound groove formed by a combination of the groove of the third divided member and the groove of the first divided member, The protrusion of the third divided member is fitted into a compound groove formed by a combination of the groove of the first divided member and the groove of the second divided member, Each of the first divided member, the second divided member, and the third divided member is provided with one frame connecting surface, The three frame connection surfaces are perpendicular to each other. A frame joint characterized by:

2. a frame non-connecting surface with a convex portion formed on a frame non-connecting surface of the frame that is not connected to the frame, and a frame non-connecting surface with a concave portion formed on a frame non-connecting surface of the frame that is not connected to the frame, The convex portion of the non-connecting surface of the frame with the convex portion has a shape that approximately matches the concave portion of the non-connecting surface of the frame with the concave portion.

2. The frame joint of claim 1.

3. A frame joint according to claim 1 or 2, A frame rack assembled with a frame connected to the frame connecting portion, The frame is generally prismatic, The end of the frame has an open cavity; The frame connection portion has a protrusion that fits into a cavity in the frame end portion. A frame rack characterized by:

4. The joint body has a groove on the ridge, The outer surface of the frame is provided with a linear groove along the longitudinal direction. When the joint body and the frame are connected, both grooves are arranged in a continuous straight line, and a plate-shaped object can be placed in the groove. The frame rack according to claim 3.

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