JP6506145B2 - Shelf and frame assembly structure - Google Patents

Description

  BACKGROUND OF THE INVENTION Field of the Invention The present invention relates to a frame assembly structure in which a frame and a joint connecting the frames can be assembled and disassembled.

  Patent Document 1 discloses an assembly-type shelf which can carry an article and can be expanded in any direction to freely change its shape and size. This assembly type shelf comprises a plurality of straight bar members, a plurality of various joint members and a base plate, and the bar members fit in the fitting portions of the joint members and are connected to each other to constitute a frame, and the frame The base plate is placed, positioned and supported on the bar material disposed in the horizontal plane of the table.

  Further, Patent Document 2 discloses a rack-shaped furniture having a structure that can change the entire size and form by connection addition, is easy to assemble and disassemble, and can maintain integral strength even if the addition is performed. There is. In this rack-like furniture, as described using the wording of the document, the upper, lower, left, or right side of the base has a threaded portion formed with a screw, and the screw is a screw An access of a frame structure of an extension unit to be extended so as to be accessible for access from the outside of the base body so as to be able to be engaged with the screw rod formed with a screw screwed to the part. A threaded rod can be inserted into a through hole passing in a direction, and the screw part at its end can be screwed into the screw part, and the opposite end of the screw rod has the same screw as the screw rod The screw part exposed at the surface part of the extension unit is provided or configured so that the screw part of the end can be accessed from the outside so as to be threadably accessible.

JP, 2015-6237, A Unexamined-Japanese-Patent No. 2003-61759

  However, since the conventional shelf has a structure in which the frame is inserted in the same direction as the longitudinal direction to be connected to the joint, there is a disadvantage that it is difficult to assemble and disassemble.

  SUMMARY OF THE INVENTION It is an object of the present invention to provide a frame assembly structure which is easy to assemble and disassemble in view of the above circumstances.

The frame assembly structure of the present invention is a frame assembly structure in which a frame and a joint for connecting the frames are provided in an assembled and disassembled manner in order to solve the above-mentioned problems, and the joint is connected to the frame A locking projection provided in a protruding state is provided at a location, and an end of the frame is provided with a locking recess which allows the insertion of the locking projection from the first direction in the frame. And the frame and the joint are connected by rotation of the frame about a second direction intersecting the first direction as the rotation center in a state where the locking projection is inserted into the locking recess. It is characterized by

  With the above configuration, the frame is brought close to the locking projection of the joint in the first direction, and the locking projection is inserted into the locking recess, and in this inserted state, the frame is The frame and the joint are connected by rotating around a second direction intersecting with one direction. For this reason, in the assembly and disassembly of the frame assembly structure, the operation of inserting the frame in the second direction is not required, and for example, while the joint is connected to a certain frame, it is in cross relation with the frame It will be easier to remove and attach the frame of the.

  The locking projection may include a neck and a head supported by the neck and having a portion projecting laterally of the neck. According to this, the presence of the head can prevent the frame from coming off.

  A first pressing projection is formed on the lower surface of the head, to which the neck is connected, and the lower surface of the locking recess is inserted in the locking recess into the locking recess. A second pressing projection may be formed at an opposing portion facing the portion, and the first pressing projection and the second pressing projection may abut at a connection position of the frame and the joint. . According to this, since the first pressing convex portion and the second pressing convex portion are in contact with each other, the gap between the frame and the joint 4 is eliminated, and rattling is prevented.

  The joint may have a hollow portion through which an electric wire can be inserted. According to this, it is possible to pass an electrical wire between adjacent frames via the joint.

  An electrical wire may be inserted into the hollow portion of the joint, and a plug connected to the electrical wire may be accommodated in the frame. According to this, it is possible to prevent the plug from being exposed from the frame assembly structure.

  The hollow portion may communicate with the inside of the frame at the connection position. According to this, a connection path through which an electric wire or the like passes is formed by the connection by rotation.

  A withdrawal portion of the electric wire capable of withdrawing the electric wire from the rotation range of the frame may be formed in communication with the hollow portion of the joint. According to this, it is possible to reduce the damage to the electric wire due to the rotation of the frame.

A lock member is slidably provided on the frame, and a protrusion formed on the lock member by the slide enters the hollow portion of the joint so that the rotation of the frame is limited. It is also good. According to this, it is possible to prevent the frame from rotating undesirably.

  The slide of the lock member may be limited in a state in which the rotation of the frame is limited. According to this, it is possible to prevent the locking member from sliding undesirably.

The locking member may be provided with a plate member that contacts the inner wall of the hollow portion. According to this, the connection strength between the frame and the joint can be improved by the plate member.

In these frame assembly structures, a shelf may be provided, and the shelf may be supported by the frame.

  The present invention has various effects such as easy assembly and disassembly.

It is a perspective view showing a shelf as a frame assembly structure of an embodiment of the present invention. It is the perspective view which showed the joint used with the shelf of FIG. The same figure (A), (B), (C), (D) is the perspective view which showed the main-body part of the joint of FIG. It is the perspective view which showed the joint used with the shelf of FIG. The same figure (A), (B), (C), (D) is the perspective view which showed the main-body part of the joint of FIG. It is the perspective view which showed the joint used with the shelf of FIG. The same figure (A), (B), (C), (D) is the perspective view which showed the main-body part of the joint of FIG. The same figure (A) and (B) are the perspective views which showed the 1st latching protrusion part used for the joint of FIG. 2 grade | etc.,. The same figure (A) and (B) are the perspective views which showed the 2nd latching protrusion part used for the joint of FIG. The same figure (A) and (B) are the perspective views which showed the baseboard flame | frame used by the shelf of FIG. It is the perspective view which showed the main body and cover of the vertical frame used with the shelf of FIG. It is the perspective view which showed the main body and cover of the horizontal frame used with the shelf of FIG. The same figure (A) and (B) are the perspective views which showed the latching recessed part provided in the vertical frame etc. which are used by the shelf of FIG. The same figure (A) and (B) is explanatory drawing which showed the relationship between the 2nd press convex part of a latching recessed part, and the 1st press convex part of a 1st latching protrusion. It is an explanatory view explaining operation which connects a joint to a vertical frame. The figure (A) is explanatory drawing explaining operation which connects a joint to a vertical frame, and the figure (B) showed the state at the time of non-rotation of the 1st locking projection inserted in the locking crevice. FIG. The figure (A) is an explanatory view explaining operation which connects a joint to a vertical frame, and the figure (B) is the explanation which showed the state at the time of rotation of the 1st locking projection part inserted in the locking crevice. FIG. The same figure (A) is a perspective view showing a lock member, and the same figure (B) is a perspective view showing a plate member of the lock member. It is explanatory drawing which showed the relationship of the joint in the shelf of FIG. 1, a latching recessed part, and a locking member. It is the perspective view which showed the relationship between the joint in the shelf of FIG. 1, a latching recessed part, and a locking member. The figure (A) is a perspective view showing the main part of a depth frame, and the figure (B) is a perspective view showing a depth frame. The figure (A) and (B) are the perspective views which showed the latching recessed part used for the depth frame.

  As shown in FIG. 1, the shelf 1 as a frame assembly structure of this embodiment includes a shelf board 2, a frame 3 for supporting the shelf board 2, and a joint 4 for connecting the frames to one another. Disassembly is possible. The frame 3 includes a horizontal frame 3A, a vertical frame 3B, a depth frame 3C, and a baseboard frame 3D. The joint 4 includes a first joint 4A, a second joint 4B, and a third joint 4C. There is also a type in which the table tap 5 is incorporated in the shelf board 2.

  As shown in FIGS. 2 and 3 (A), 3 (B), 3 (C) and 3 (D), the first joint 4A includes four first connecting portions 41 and one second connecting portion 41. A connecting portion 42 is provided. The first joint 4A is connected to the horizontal frame 3A at the first connecting portion 41 located in the horizontal direction (X direction) among the four first connecting portions 41, and is located in the vertical direction (Z direction) The first connection portion 41 is connected to the vertical frame 3B or the baseboard frame 3D, and the second connection portion 42 located in the depth direction (Y direction) is connected to the depth frame 3C. The first locking projections 43 that project in the same direction as the direction in which the first connection portions 41 project are fixed to the respective first connection portions 41 by a fixing bolt 400 having a hexagonal hole. The cross-sectional shape of the first connecting portion 41 according to the plane orthogonal to the projecting direction of the first locking projection 43 is substantially hexagonal. Further, in each first connection portion 41, a hollow portion 41a is formed adjacent to the fixed portion of the first locking projection 43, and a withdrawal portion 41b is formed in communication with the hollow portion 41a. There is. In addition, a second locking projection 44 is fixed to the second connection portion 42 by a fixing bolt 401 having a hexagonal hole. The cross-sectional shape of the second connecting portion 42 according to a plane (X-Z plane) orthogonal to the projecting direction (Y direction) of the second locking projection 44 is substantially square. The sides of the square shape are directed in the longitudinal direction and in the lateral direction.

  As shown in FIGS. 4 and 5 (A), 5 (B), 5 (C), and 5 (D), the second joint 4B includes three first connecting portions 41 and one first joint. 2 A connecting portion 42 is provided. The second joint 4B is connected to the horizontal frame 3A at the first connecting portion 41 located in the horizontal direction (X direction) among the three first connecting portions 41, and is located in the vertical direction (Z direction) The first connection portion 41 is connected to the vertical frame 3B or the baseboard frame 3D, and the second connection portion 42 located in the depth direction (Y direction) is connected to the depth frame 3C. The first locking projections 43 that project in the same direction as the direction in which the first connection portions 41 project are fixed to the respective first connection portions 41 by a fixing bolt 400 having a hexagonal hole. The cross-sectional shape of the first connecting portion 41 according to the plane orthogonal to the projecting direction of the first locking projection 43 is substantially hexagonal. Further, in each first connection portion 41, a hollow portion 41a is formed adjacent to the fixed portion of the first locking projection 43, and a withdrawal portion 41b is formed in communication with the hollow portion 41a. There is. In addition, a second locking projection 44 is fixed to the second connection portion 42 by a fixing bolt 401 having a hexagonal hole. The cross-sectional shape of the second connecting portion 42 according to a plane (X-Z plane) orthogonal to the projecting direction (Y direction) of the second locking projection 44 is substantially square. The corner sides in this rectangular shape are directed in the vertical direction and the horizontal direction.

  The third joint 4C includes, as shown in FIGS. 6 and 7 (A), 7 (B), 7 (C), and 7 (D), two first connecting portions 41 and one first connecting portion 41. 2 A connecting portion 42 is provided. The third joint 4C is connected to the horizontal frame 3A at the first connecting portion 41 located in the horizontal direction (X direction) among the two first connecting portions 41, and is located in the vertical direction (Z direction) The first connecting portion 41 is connected to the vertical frame 3B, and the second connecting portion 42 located in the depth direction (Y direction) is connected to the depth frame 3C. The first locking projections 43 that project in the same direction as the direction in which the first connection portions 41 project are fixed to the respective first connection portions 41 by a fixing bolt 400 having a hexagonal hole. The cross-sectional shape of the first connecting portion 41 according to the plane orthogonal to the projecting direction of the first locking projection 43 is substantially hexagonal. Further, in each first connection portion 41, a hollow portion 41a is formed adjacent to the fixed portion of the first locking projection 43, and a withdrawal portion 41b is formed in communication with the hollow portion 41a. There is. In addition, a second locking projection 44 is fixed to the second connection portion 42 by a fixing bolt 401 having a hexagonal hole. The cross-sectional shape of the second connecting portion 42 according to a plane (X-Z plane) orthogonal to the projecting direction (Y direction) of the second locking projection 44 is substantially square. The corner sides in this rectangular shape are directed in the vertical direction and the horizontal direction.

  The main body of the first joint 4, the first locking projection 43 and the second locking projection 44 are made of, for example, a metal such as an aluminum alloy.

  As shown in FIGS. 8A and 8B, the first locking projection 43 has a neck portion 432 and a portion supported by the neck portion 432 and protruding laterally to the neck portion 432. For example, the neck portion 432 has a smaller diameter (small diameter) than the head portion 431. The head 431 has a receiving portion 431 a in which the head of the fixing bolt 400 is received, and a stopper projection 431 b. In addition, the head 431 is formed in a substantially oval shape having an arc-shaped short side and a linear long side when viewed from the insertion direction of the fixing bolt 400 (the projecting direction of the first locking projection 43). It is done. The stopper projection 431 b protrudes in the direction orthogonal to the projecting direction of the first locking projection 43 on the side of the short side in the oval shape. Further, on the lower surface portion of the head 431 to which the neck portion 432 is connected, the first pressing convex portions 431c protruding in a substantially trapezoidal shape are formed at two positions at an interval of 180 degrees on the short side. ing. Further, a notch 432a is formed at the lower end of the neck portion 432 of the first locking projection 43, and is engaged with a protrusion formed in a circular hole formed in the joint 4 At the position and detent.

  As shown in FIGS. 9A and 9B, the second locking projection 44 has a neck 442 and a portion supported by the neck 442 and protruding laterally to the neck 442. For example, the neck 442 has a smaller diameter (small diameter) than the head 441. The head portion 441 has a housing portion 441 a in which the head portion of the fixing bolt 401 is housed. Further, the head portion 441 has a circular shape when viewed from the insertion direction of the fixing bolt 401 (the projecting direction of the second locking projection 44). Further, on the lower surface portion of the head portion 441 to which the neck portion 442 is connected, first pressing convex portions 441c protruding in a substantially trapezoidal shape are formed at four positions at intervals of 90 degrees. Further, a notch 442 a is formed at the lower end of the neck 442 of the second locking projection 44, and engages with a projection formed in a circular hole formed in the joint 4. At the position and detent.

  As shown in FIGS. 10A and 10B, the core frame 3D includes a main body 31, an adjuster plate 32, an adjuster 33, a locking recess 34, and a cover 35. When the cover 35 is attached to the main body portion 31, a hexagonal shape is formed which matches the hexagonal shape of the first connecting portion 41 of the joint 4. In addition, when the cover 35 is removed, the cut portion 31b is exposed, and the first locking projection 43 can be inserted and removed (a part of the cut portion 31b is removed in FIG. 10B). A state of being closed by the plate member 362 is shown). The adjuster plate 32 and the locking recess 34 are fixed to the main body 31 by screws (not shown). The locking recess 34 is made of resin, for example, and the main body 31 is made of metal such as aluminum alloy. The cover 35 has a cover lock 351 slidably. When the cover lock 351 is slid and protruded from the cover end, the tip end of the cover lock 351 can be inserted into the retracting portion 41 b of the joint 4. That is, the retracting portion 41 b also functions as an engaging portion of the cover lock 351.

  FIG. 11 shows the main body 31 and the cover 35 of the vertical frame 3B. In the vertical frame 3B, the adjuster plate 32 and the adjuster 33 are unnecessary. In the vertical frame 3B, the locking recesses 34 are provided at both ends of the main body portion 31, and the cover locks 351 are provided at both ends of the cover 35. In addition, also in the vertical frame 3B, when the cover 35 is attached to the main body portion 31, a hexagonal shape that matches the hexagonal shape of the first connecting portion 41 of the joint 4 is formed. A connecting wall 31 a is formed on the main body 31 so as to face the cover 35. And in the both ends of the said main-body part 31, the said connection wall part 31a is notched, and the said cut part 31b is formed. Further, an opening 31 c is formed at the center of the main body 31. Processing such as plug connection of the power supply cord can be performed using the opening 31c.

  FIG. 12 shows the main body 31 and the cover 35 of the horizontal frame 3A. The horizontal frame 3A is formed to be longer than the vertical frame 3B, but like the vertical frame 3B, the locking recess 34 is provided at both ends of the main body portion 31. The connecting wall 31a is also formed on the main body 31 of the lateral frame 3A. And in the both ends of the said main-body part 31, the said connection wall part 31a is notched, and the cut part 31b is formed. Further, the opening 31 c is formed at the center of the main body 31. In the lateral frame 3A, the cover 35 is not attached, and a shelf support member (not shown) is attached. The shelf support member can be attached to the main body portion 31 by sliding it from the end face of the main body portion 31, for example. The shelf board 2 is supported by the shelf support member.

  Although the connecting wall portion 31a and the cut portion 31b are also formed in the baseboard frame 3D, the cut portion 31b is formed at one place on the side where the locking recess 34 is provided. Further, the opening 31c is not formed.

  Further, as shown in FIG. 1, an opening is formed on the upper surface side of the horizontal frame 3A disposed at the back of the horizontal frame 3A, and the table tap 5 or the USB charging is performed using this opening. You may enable it to install container 5A grade | etc.,.

  The locking recess 34 allows the insertion of the first locking projection 43 from the first direction intersecting the second direction (longitudinal direction of the frame 3 (3A, 3B, 3D)) and after the insertion Rotation of the frame 3 about the rotation of the second direction (longitudinal direction), in other words, rotation of the first locking protrusion 43 as the rotation center locks the first locking protrusion 43 Do. As shown in FIG. 13, the locking recess 34 has a flange portion 341 fixed to the end of the frame 3 and a receiving portion 342 located inside the end of the frame 3. The locking recess 34 is formed with a housing opening 341 a which allows the neck portion 432 of the first locking projection 43 to pass. Further, the receiving portion 342 allows the passage of the first locking projection 43 at the short side of the head portion 431, and the passage portion 342a for restricting the passage at the long side is adjacent to the accommodation opening 341a. It is formed. Further, in the receiving portion 342, a space portion 342b which allows relative rotation of the head portion 431 by rotation of the frame 3 is formed.

  Further, the flange portion 341 is formed with a flat passing portion 341b for passing a lock member 36 described later, and the receiving portion 342 prevents the excessive rotation of the frame 3 (3A, 3B, 3D). An over-rotation preventing portion 342c is formed. When the stopper projection 431b contacts the over-rotation preventing portion 342c, over-rotation of the frame 3 (3A, 3B, 3D) is prevented.

  In the space portion 342b of the locking concave portion 34, there is a facing portion facing the lower surface portion of the head 431. In this facing portion, a second pressing convex portion 342d projecting in a substantially trapezoidal shape is provided. It is formed in two places at an interval of 180 degrees. Further, as described above, on the lower surface portion of the head portion 431, the first pressing convex portions 431c protruding in a substantially trapezoidal shape are formed at two positions at an interval of 180 degrees. When the first locking projection 43 is inserted into the locking recess 34 in the frame 3 (3A, 3B, 3D), as shown in FIG. (2) The connection position by the rotation of the frame 3 (3A, 3B, 3D) although not in contact with the pressing projection 342d (90 degrees rotation position after inserting the first locking projection 43 into the locking recess 34) 14B, the first pressing convex portion 431c and the second pressing convex portion 342d are in contact with each other.

  The hollow portions 41a formed in the respective first connection portions 41 communicate with each other in the joint 4 and, as shown in FIG. 15, the power supply cord 7 is passed as an electrical wire in the hollow portions 41a. Can. The male plug 71 and the female plug 72 connected to the power cord 7 are provided outside the joint 4, and the plugs 71 and 72 can be accommodated in the frame 3.

  Although FIG. 15, FIG. 16 and FIG. 17 show the situation when the frame 3 (3B) is connected to the first locking projection 43 of the joint 4 (4B), other joints and other joints are shown. Connection of frames will be similarly performed.

  As shown in FIG. 15, when the frame 3 (3B) is attached to the first locking projection 43 of the joint 4 (4B), the arc short side of the head 431 is It turns to the cut part 31b. Further, the short side facing the cut portion 31b is a direction in which the stopper projection 431b is not formed.

  And as shown to FIG. 16 (A) and FIG. 16 (B), the said 1st latching protrusion 43, the said cut part 31b of the said flame | frame 3 (3B), and the accommodation opening part 341a of the said latching recessed part 34 , Into the above-mentioned receiving part 342. At this time, the head 431 enters the space 342b, and relative rotation of the head 431 by rotation of the frame 3 is permitted.

  Furthermore, as shown in FIGS. 17A and 17B, the frame 3 (3B) is used with the first locking projection 43 (second direction) as a rotation axis, and the joint 4 (4B). On the other hand, the connection between the frame 3 (3B) and the joint 4 (4B) is completed by rotating the frame 3 (3B) by 90 degrees in the mounting direction. At this time, the power cord 7 can be retracted to the retraction portion 41b. That is, the power supply cord 7 can be retracted to the retraction portion 41 b from the rotation range of the frame 3. The hollow portion 41a communicates with the inside of the frame 3 (3B) by connection completion by rotation of the frame 3 (3B) in the mounting direction. In the connection completion by the rotation, as shown in FIGS. 14B and 17B, the direction of the long side of the head 431 is rotated 90 degrees, and the first locking projection 43 is Movement in the direction away from the locking recess 34 is also blocked. Furthermore, when the cover 35 is attached after the connection by the rotation, the hexagonal faces of the frame 3 and the hexagonal faces of the first connection portion 41 become substantially flush. No particular tool is required to mount the frame 3 and the cover 35.

  Further, a locking member 36 is provided slidably in the longitudinal direction of the main body portion 31 of the frame 3. As shown in FIGS. 18A and 18B, the lock member 36 has a lock main body 361 in which a plate member 362 made of metal, for example, is incorporated. The lock main body 361 is made of, for example, a resin, and has an accommodating portion for accommodating the plate member 362, and the protruding portion 363 located on the upper side of the plate member 362 is in the vicinity of both edges of the plate member 362 Prepare for Each projecting portion 363 has a base end portion 36a which is a lateral portion of the flat passing portion 341b of the flange portion 341 at its base portion, and on the tip end side, passes over the flat passing portion 341b and enters the hollow portion 41a. It has the tip part 36b which enters. The tip portion 36 b is formed to be curved and can be bent in the inward direction of the plate member 362.

  When the locking member 36 is slid so as to protrude from the end of the frame 3, as shown in FIGS. 19 and 20, the proximal end portion 36 a abuts on the lateral portion of the flat passing portion 341 b of the flange portion 341. It is positioned. Further, the tip end portion 36b of the projecting portion 363 passes through the flat passing portion 341b and is positioned on the back side of the flange portion 341, and the locking member 36 is locked by the locking recess 34 and is removed. Directional sliding is prevented.

  Further, when the locking member 36 is slid so as to protrude from the end of the frame 3, the plate member 362 gets into the hollow portion 41 a. The width of the plate member 362 is substantially the same as the width of the hollow portion 41a. When the plate member 362 is positioned in contact with the inner wall of the hollow portion 41a, rotation of the frame 3 in the removal direction is limited. The connection strength between the frame 3 and the joint 4 is improved.

  As shown in FIGS. 21 (A) and 21 (B), the depth frame 3C includes a main body 3001 in the shape of a square cylinder, locking recesses 3002 provided on both ends of the main body 3001, and the main body 3001. A cover 3003 is provided to cover the cut portions 3001 a formed at both ends of 3001. The size of the quadrangle in the main body 3001 corresponds to the size of the cross section quadrilateral of the second connecting portion 42.

  As shown in FIGS. 22A and 22B, the locking recess 3002 is, like the locking recess 34, a flange portion 3012 fixed to the end of the depth frame 3C, and the depth And a receiving portion 3022 positioned inside the end of the frame 3C. Further, the locking recess 3002 is formed with a housing opening 3002 a which allows the neck portion 442 of the second locking protrusion 44 to pass. Further, the head 441 of the second locking projection 44 is accommodated at the back end side (the frame inner side) of the receiving portion 3022.

  In the receiving portion 3022 of the locking recess 3002, a facing portion (the back end surface of the receiving portion 3022) facing the lower surface of the head 441 of the second locking projection 44 exists. At the opposing portion, second pressing convex portions 3022a protruding in a substantially trapezoidal shape are formed at two positions at an interval of 90 degrees. Further, as described above, on the lower surface portion of the head portion 441 of the second locking projection portion 44, first pressing convex portions 441c protruding in a substantially trapezoidal shape are formed at four places at intervals of 90 degrees. The first pressing convex portion 441c and the second pressing convex portion 3022a at the connection position (the 45-degree rotational position after the second locking projection portion 44 is inserted into the locking recess 3002) by the rotation of the depth frame 3C. And contact. In the depth frame 3C, the connection with the joint 4 is completed by rotating 45 degrees, and each side of the square of the frame 3 and each side of the square of the second connecting portion 42 are substantially flush with each other. Become.

  With the above configuration, the locking recess 34 is moved closer to the first and second locking projections 43 and 44 of the joint 4 from the direction (first direction) intersecting the longitudinal direction of the frame 3. By inserting the locking projections 43 and 44 into the 3002 and rotating the frame 3 in this inserted state with the second direction as the rotation center (with the locking projections 43 and 44 as the rotation center) The connection between the frame 3 and the joint 4 is completed. For this reason, in the assembly and disassembly of the shelf 1, an operation of inserting the frame 3 in a direction parallel to the longitudinal direction becomes unnecessary. For example, while the joint 4 is connected to a certain frame 3, the frame 3 It is easy to remove and attach the other frame 3 which is in the cross relationship with the frame.

  When the first and second locking projections 43 and 44 include head portions 431 and 441 and neck portions 432 and 442 supporting the head portions, the frame is removed due to the presence of the head portions 431 and 441. Preventive.

  When the first pressing convex portions 431 c and 441 c and the second pressing convex portions 342 d and 3022 a are brought into contact with each other at the connecting position by the rotation of the frame 3, the first and second locking protrusions 43 and 44 and the above The clearance between the locking recesses 34 and 3002 is eliminated, and rattling between the frame 3 and the joint 4 is prevented.

  If the first and second locking projections 43 and 44 are made of metal and the locking recesses 34 and 3002 are made of resin, it is possible to prevent unpleasant noise or the like due to contact between metals during assembly or disassembly. it can.

  When the hollow portion 41 a through which the power supply cord 7 can be inserted is formed in the joint 4, the power supply cord 7 can be passed between the adjacent frames 3 via the joint 4.

  When the power cord 7 is inserted into the hollow portion 41 a of the joint 4 and the plugs 71 and 72 connected to the power cord 7 can be accommodated in the frame 3, the plug 71 from the shelf 1, 72 can be avoided from being exposed.

  When the hollow portion 41a communicates with the inside of the frame 3 at the connection position by the rotation of the frame 3, the connection by the rotation forms a communication passage through which the power supply cord 7 and the like pass.

  If the retracting portion 41b of the power supply cord 7 capable of retracting the power supply cord 7 from the rotation range of the frame 3 is formed in communication with the hollow portion 41a of the joint 4, the power supply by rotation of the frame The damage to the cord can be reduced. In addition, although the power supply cord 7 was illustrated as an electric wire, it may be not only such a power supply cord 7 but other power supply wiring, and electric lines may be electric signal lines, such as a LAN (Local Area Network) cable. Is included. In addition to the power plug, the plug includes a plug for signal line and the like.

When the projection 363 of the lock member 36 slidably provided on the frame 3 enters the hollow portion 41a of the joint and rotation of the frame 3 is restricted, the frame 3 is undesirably rotated. Can be prevented.

When the sliding of the locking member 36 in the removal direction is restricted in the rotation restricted state of the frame 3, it is possible to prevent the locking member 36 from sliding undesirably.

When the plate member 362 corresponding to the inner wall of the hollow portion 41a is provided in the lock member 36, the connection strength between the frame 3 and the joint 4 can be improved by the plate member 362.

  In the above embodiment, the receiving portion 342 is provided with an over-rotation preventing portion 342c for preventing over-rotation of the frame 3 (3A, 3B, 3D), and the over-rotation preventing portion 342c is provided with the stopper Although the excessive rotation of the frame 3 (3A, 3B, 3D) is prevented by the projection 431b being hit, a structure that allows the excessive rotation may be adopted. This is to prevent damage when the user tries to rotate the frame 3 (3A, 3B, 3D) with a strong force without knowing the over-rotation preventing mechanism.

  As a structure which permits over-rotation, the structure which does not provide the said over-rotation prevention part 342c is employable. Further, in such a structure, by leaving the stopper projection 431b and making the stopper projection 431b abut on the receiving portion 342, it is possible to maintain the structure for enhancing the pull-out preventing force of the frame 3 in the longitudinal direction. .

  Further, the assembled state shown in FIG. 1 is an example, and a shelf board can be additionally or horizontally extended to this, or can be assembled to another design. Moreover, it can also be set as the design which attached a base wood between base wood frames 3D.

  Although the embodiments of the present invention have been described above with reference to the drawings, the present invention is not limited to the illustrated embodiments. Various modifications and variations can be made to the illustrated embodiment within the same or equivalent scope of the present invention.

1: Shelf (frame assembly structure)
2: Shelf plate 3: Frame 3A: Horizontal frame 3B: Vertical frame 3C: Depth frame 3D: Perforated wood frame 4: Joint 4A: First joint 4B: Second joint 4C: Third joint 5: Table tap 7: Power cord (Electric wire)
31: body 31a: joint wall 31b: cut 31c: opening 34: locking recess 35: cover 36: lock 36a: base 36b: base 41b: first connection 41a: cavity 41b: retract Portion 42: second connecting portion 43: first locking projection 44: second locking projection 71: male plug 72: female plug 341: flange 341a: accommodation opening 341b: flat passing portion 342: receiving Part 342b: Space part 342c: Over rotation preventing part 342d: Second pressing convex part 351: Cover lock 361: Lock main body 362: Plate member 363: Protruding part 400: Fixing bolt 401: Fixing bolt 431: Head 431a: Housing section 431b: stopper protrusion 431c: first pressing convex portion 432: neck portion 432a: notch portion 441: head portion 441a: accommodation portion 441c: 1 pushing projection 442: neck 442a: notch 3001: main body 3001a: Cut 3002: engagement recess 3002a: receiving aperture 3003: Cover 3012: flange 3022: receiving unit 3022a: second pressing protrusion

Claims (10)

It is a shelf provided with a frame assembly structure provided with a frame and a joint for connecting the frames so as to be assembled and disassembled, and the joint has a locking projection provided in a projecting state at a location where it is connected with the frame. A locking recess having an opening on the end face side of the frame and a cut portion on the side connected to the opening on the end face side is provided at the end portion of the frame; The insertion of the locking projection through the cut portion of the side portion is permitted, and in a state where the locking projection is inserted into the locking recess, the second direction intersecting with the first direction is the rotation center The rotation of the frame connects the frame and the joint,
Shelf receiving member receiving the shelves attached to the frame in an arrangement covering the cut portion, a shelf where the shelves via the shelf receiving member, characterized in that it is supported by the frame. A frame assembly structure in which a frame and a joint for connecting the frames can be assembled and disassembled, and the joint includes a locking projection provided in a protruding state at a location where it is connected to the frame, The end portion of the frame is provided with a locking recess having an opening on the end face side of the frame and a cut portion on the side connected to the opening on the end face side, and the side portion of the frame from the first direction In a state where insertion of the locking projection through the cut portion is permitted and the locking projection is inserted into the locking recess, rotation of the frame about a second direction intersecting the first direction as a rotation center Connects the frame and the joint,
A frame assembly characterized in that an opening on the end face side and a cut portion on the side portion are formed at both ends of the frame, and the frame is connected to two joints located at the both end sides Construction. A frame assembly structure in which a frame and a joint for connecting the frames can be assembled and disassembled, and the joint includes a locking projection provided in a protruding state at a location where it is connected to the frame, The end portion of the frame is provided with a locking recess having an opening on the end face side of the frame and a cut portion on the side connected to the opening on the end face side, and the side portion of the frame from the first direction In a state where insertion of the locking projection through the cut portion is permitted and the locking projection is inserted into the locking recess, rotation of the frame about a second direction intersecting the first direction as a rotation center Connects the frame and the joint,
The locking projection includes a neck and a head supported by the neck and having a portion projecting laterally of the neck.
A first pressing projection is formed on the lower surface of the head, to which the neck is connected, and the lower surface of the locking recess is inserted in the locking recess into the locking recess. A second pressing convex portion is formed at an opposing portion facing the portion, and the first pressing convex portion and the second pressing convex portion abut at a connection position of the frame and the joint. To frame assembly structure. The frame assembly structure according to claim 2 or 3 , wherein a hollow portion through which an electric wire can be inserted is formed in the joint.   5. The frame assembly structure according to claim 4, wherein an electrical wire is inserted into the hollow portion of the joint, and a plug connected to the electrical wire is accommodated in the frame. Construction.   The frame assembly structure according to claim 4 or 5, wherein the hollow portion communicates with the inside of the frame at a connection position of the frame and the joint.   The frame assembly structure according to any one of claims 4 to 6, wherein a withdrawal portion of an electric wire capable of retracting the electric wire from the rotation range of the frame communicates with the hollow portion of the joint. A frame assembly structure characterized in that it is formed. A frame assembly structure in which a frame and a joint for connecting the frames can be assembled and disassembled, and the joint includes a locking projection provided in a protruding state at a location where it is connected to the frame, The end portion of the frame is provided with a locking recess having an opening on the end face side of the frame and a cut portion on the side connected to the opening on the end face side, and the side portion of the frame from the first direction In a state where insertion of the locking projection through the cut portion is permitted and the locking projection is inserted into the locking recess, rotation of the frame about a second direction intersecting the first direction as a rotation center Connects the frame and the joint,
The joint is formed with a hollow portion through which an electric wire can be inserted,
The frame is provided with a lock member slidably, and the projection formed on the lock member by the slide enters the hollow portion of the joint, whereby the rotation of the frame is restricted. To frame assembly structure. 9. A frame assembly according to claim 8, wherein the sliding of said locking member is limited with limited rotation of said frame. The frame assembly structure according to claim 8 or 9, wherein the locking member is provided with a plate member that contacts the inner wall of the hollow portion.

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