JP2021032378A - Joint member - Google Patents

Abstract

To cause a horizontal beam to be fitted from the back when fitting another horizontal beam between vertical beams and to perform connection at all connection parts by using a single joint member.SOLUTION: In a joint member 2 connecting vertical beams 3 and a horizontal beam 4 so as to be able to assemble a rack 1, there are provided: an upper fitting part 21 for screwing a male screw part 31 provided for an end part of the vertical beam 3 at an upper part; a lower fitting part 24 capable of fitting a female screw part 32 provided for an end part of the other vertical beam 3 with a screw 7 at a lower part; a slit-shaped reception part 27 which inserts a flange part 41a provided for the end part of the horizontal beam 4 from above and fixes the same to a side part; and a coming-off prevention member 5 preventing coming off of the flange part 41a inserted in the reception part 27. The coming-off prevention member 5 can be fixed by screwing the vertical beam 3 with the joint member 2.SELECTED DRAWING: Figure 4

Description

The present invention relates to joint members used when assembling racks.

Generally, when a grid-like rack is assembled using a rod-shaped member (hereinafter referred to as "beam") such as a pipe, a joint member is used.

Such a joint member is capable of connecting the beam and the end of the beam so that the beam can be inserted into six beam insertion holes provided in the orthogonal XYZ axis directions, or a corner of a rack. There are many things, such as making it possible to insert a beam into the beam insertion holes provided at three places in the XYZ axis direction so that it can be used for the part, and it is used by appropriately selecting it according to the place of use. Orthogonal.

By the way, when assembling a rack using such a beam or a joint member, in general, a method of randomly connecting a vertical beam or a horizontal beam, or a method of connecting vertical beams to form a wall-like lattice surface. After assembling, it is assembled by connecting the horizontal beams to the wall surfaces facing each other on the left and right.

However, when the rack is assembled by such a method, there are the following problems.

That is, when assembling a three-dimensional rack using such a beam, when the horizontal beam is connected to the pair of left and right vertical beams, the distance between the left and right vertical beams is fixed to the width dimension in which the horizontal beam is inserted. Will be done. Therefore, even if you try to attach another horizontal beam between the vertical beams after the fact, the left-right spacing is narrowed by the amount of insertion of the already installed horizontal beam into the joint part. It becomes impossible to attach the lateral beam of. Therefore, when assembling the rack three-dimensionally, after inserting all the horizontal beams into the joint members of the vertical beam, the beam insertion holes of the joint members facing the tips of all the horizontal beams must be positioned and inserted. It doesn't become. However, when attempting to mount a lateral beam in this way, the beam insertion holes of the joint member must be positioned at the same time at the tips of all the lateral beams, and if even one position deviates from the beam insertion holes, all There was a problem that the lateral beam could not be inserted.

Further, in order to facilitate the insertion of such a lateral beam, the joint member is made of a flexible member such as resin, and the lateral beam is sequentially inserted by utilizing the slight bending of the insertion portion of the joint member. There is also a method of doing so, but such a method has a problem that the rack becomes unstable due to the bending of the joint member.

Furthermore, since it is necessary to select and use the type of the conventional joint member according to the connection point of the beam, it is necessary to prepare the type of joint member according to each connection point in advance. There was a problem.

On the other hand, in such a joint member, Patent Document 1 proposes a structure in which a horizontal beam can be attached later even when the distance between the left and right vertical beams is set.

This joint member is formed in a hollow box shape, and a joint portion having a convex joint portion and an outer wall portion can be detachably attached to an opening provided on a side surface in the XYZ direction. Correspondingly, the lateral beam is configured to have a reverse groove shape that opens downward so that it can be attached. When the lateral beam is attached, the lateral beam having a reverse groove shape is placed on the convex joint portion attached to the hollow box so that the lateral beam can be attached. With this configuration, even if the distance between the left and right vertical beams is fixed by the horizontal beam, another horizontal beam can be attached later from above, and one type of joint member can be attached. There is an advantage that the vertical beam and the horizontal beam can be connected at any place by using.

However, when connecting using such a joint member, since the structure is such that the lateral beam is simply mounted from above, not only the strength of the rack is weakened, but also the lateral beam is moved when the rack is moved. There was a problem that the lateral beam would come off if it was held.

JP-A-2007-232167

Therefore, the present invention has been made by paying attention to the above problems, and when a horizontal beam is attached between the vertical beams, another horizontal beam can be attached later, and all the connecting points are connected. The purpose is to allow the rack to be assembled using a single joint member.

That is, in order to solve the above problems, the joint member of the present invention has an upper mounting portion for mounting the end portion of the vertical beam and a lower mounting portion for mounting the end portion of the vertical beam in the joint member capable of connecting the vertical beam and the horizontal beam. A lower mounting part for attaching the end of another vertical beam to the portion, and a receiving portion for inserting and fixing the insertion portion provided at the end of the horizontal beam on the side portion from either the top, bottom, left or right direction. , It is provided with a pull-out prevention member for preventing the insertion portion inserted into the receiving portion from coming off.

Further, in such an invention, as the detachment prevention member, a member capable of preventing the insertion portion inserted into the receiving portion from coming off when the vertical beam is attached to the upper attachment portion is used.

Further, as the upper mounting portion or the lower mounting portion, one that is screwed by inserting a male screw portion provided at the end of the vertical beam is used.

Further, as the upper mounting portion or the lower mounting portion, one that is attached to the female screw portion provided at the end of the vertical beam via a screw inserted into the hollow portion is used.

Further, a cover body for hiding the receiving portion is provided so as to be insertable in the receiving portion to which the lateral beam is not attached.

Further, an upper cover body that hides the upper mounting portion is detachably provided on the upper mounting portion to which the vertical beam is not attached.

According to the present invention, in a joint member capable of connecting a vertical beam and a horizontal beam, an upper mounting portion for mounting the end portion of the vertical beam is attached to the upper portion, and another end portion of the vertical beam is attached to the lower portion. A lower mounting part for the purpose, a receiving part for fixing by inserting an insertion part provided at the end of the lateral beam on the side part from either the upper, lower, left or right directions, and an insertion part inserted into the receiving part. Since it is provided with a pull-out prevention member to prevent pull-out, even if the distance between the left and right vertical beams is fixed by the horizontal beam, the horizontal beam can be inserted into the receiving portion and attached later. Will be. Moreover, the pull-out prevention member prevents the lateral beam from coming off, and the rack can be firmly formed.

The figure which shows the whole rack in one Embodiment of this invention. The figure which shows the vertical beam in the same form The figure which shows the lateral beam in the same form Conceptual assembly diagram using joint members in the same form Schematic cross-sectional view of the joint member in the same form as viewed from above Schematic cross-sectional view seen from the side of the joint member in the same form Bottom view of the joint member in the same form and the disconnection prevention member External perspective view of the joint member in the same form

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

As shown in FIG. 1, the joint member 2 in this embodiment is capable of attaching a vertical beam 3 or a horizontal beam 4, and as shown in FIG. 4, the vertical beam 3 is attached from above. Insert the upper mounting portion 21 for mounting, the lower mounting portion 24 for mounting another vertical beam 3 from below, and the insertion portion 41 (flange portion 41a) at the end of the horizontal beam 4 in four directions on the side surface. The receiving portion 27 to be attached and the disconnection prevention member 5 for preventing the insertion portion 41 inserted into the receiving portion 27 from coming off are provided. With this configuration, even if the horizontal beam 4 is attached and the distance between the vertical beam 3 and the vertical beam 3 is fixed, another horizontal beam 4 is inserted from above and pulled out later. It can be fixed by the prevention member 5 and can prevent the attached lateral beam 4 from coming off. Hereinafter, the configuration of the joint member 2 and the configuration of the rack 1 in the present embodiment will be described in detail.

First, as shown in FIG. 2, the vertical beam 3 attached to the joint member 2 is configured to have a metal rod-shaped member 30, and has a male screw portion 31 on one end side in the axial direction. It is configured so as to be provided so as to protrude and a concave female screw portion 32 is provided on the other end side. Here, the male screw portion 31 and the female screw portion 32 are provided at both ends, but the female screw portion is provided at both ends, and both screw bolts are inserted on one side, and only one of the male screw portions 31 is provided. May be made available as.

On the other hand, the horizontal beam 4 is configured to have a metal rod-shaped member 40 like the vertical beam 3, and is configured by providing insertion portions 41 at both ends as shown in FIG. ing. The insertion portion 41 may have any shape as long as it can be inserted into the receiving portion 27 provided on the side surface of the joint member 2, but here, the insertion portion 41 has a planar shape orthogonal to the axial direction of the lateral beam 4. It is composed of a flange portion 41a. The flange portion 41a may be provided integrally with the lateral beam 4, or concave female screw portions (not shown) are provided at both ends of the lateral beam 4, and the flange portion 41a is screwed therein. You may let it. The flange portion 41a has a thickness that is inscribed in the slit-shaped receiving portion 27 of the joint member 2 described later, and the gap 42 between the rod-shaped member 40 and the flange portion 41a is also in front of the receiving portion 27. A gap is provided so as to sandwich the wall surface so as to eliminate rattling between the receiving portion 27 and the flange portion 41a.

The joint member 2 that connects the vertical beam 3 and the horizontal beam 4 configured in this way is made of a metal member, and has an XYZ orthogonal to each other by a structure as shown in FIGS. 4 to 5 and the like. A vertical beam 3 and a horizontal beam 4 can be attached from the axial direction.

Of these, above the joint member 2, as shown in FIGS. 4 and 8, an upper mounting portion 21 is provided so that the vertical beam 3 can be mounted from above. The upper mounting portion 21 is provided by forming a screw groove on the upper inner wall portion of the recess 22 having the bottom portion 25, and is adapted to screw the male screw portion 31 of the vertical beam 3 from above. This thread groove is set to the same length as the male screw portion 31 of the vertical beam 3, and the tip portion of the vertical beam 3 can be positioned and fixed near the center in the vertical direction of the joint member 2. ..

On the other hand, below the joint member 2, as shown in FIG. 4 and the like, a lower mounting portion 24 is provided so that the vertical beam 3 can be mounted from below. The lower mounting portion 24 is configured by providing a screw hole 26 that opens in the center of the bottom portion 25, and a screw 7 is inserted into the recess 22 to project the tip portion from the screw hole 26 of the bottom portion 25, and the screw thereof. The female screw portion 32 of the vertical beam 3 is screwed onto 7. By attaching the vertical beam 3 in this way, the flat end portion of the vertical beam 3 and the flat portion of the bottom portion 25 are brought into close contact with each other and are stably fixed.

As shown in FIGS. 4 and 8, the receiving portions 27 provided in the left-right direction of the joint member 2 are such that the flange portions 41a provided at both ends of the lateral beam 4 are inserted from above. , The flange portion 41a is configured to be inserted from the opening 28 opened upward. Then, by inserting the flange portion 41a into the receiving portion 27 from above, as shown in FIGS. 4 and 5, the flange portion 41a can be sandwiched and fixed by the receiving portion 27, and the flange portion 41a is inserted. At that time, by making the gap 42 between the joint member 2 and the rod-shaped member 30 of the lateral beam 4 invisible, as shown in FIG. 1, it is not possible to know how the joint member 2 is connected from the outside. I have to. Then, in a state where the flange portion 41a is inserted into the receiving portion 27, the opening 28 of the receiving portion 27 is covered with the pull-out prevention member 5.

As shown in FIGS. 4 and 6, the pull-out prevention member 5 is attached from above the joint member 2, and only the male screw portion 31 of the vertical beam 3 can be passed through the central portion. A central hole 51 is provided so as to be capable of this, and as shown in FIG. 7, curved recesses 52 along the outer peripheral surface of the rod-shaped member 30 of the lateral beam 4 are provided at four locations on the bottom surface in the left-right direction. Then, after the horizontal beam 4 is attached, the pull-out prevention member 5 is placed above the joint member 2, and the vertical beam 3 is screwed from above, thereby preventing the vertical beam 3 from coming off at the end of the rod-shaped member 30. The member 5 is pressed so that the member 5 prevents the member 5 from coming off the rod-shaped member 40 of the lateral beam 4. By attaching the vertical beam 3 via the pull-out prevention member 5 in this way, as shown in FIG. 1, it is possible to prevent the vertical beam 3 from being connected from the outside and to make it horizontal. Also in the upper portion of the receiving portion 27 of the beam 4, it is not possible to know how the lateral beam 4 is connected by the curved recess 52 of the escape prevention member 5.

By the way, as shown in FIG. 1, the receiving portion 27 of the joint member 2 has a portion where the lateral beam 4 is not connected, such as a side surface or a corner portion of the rack 1. Therefore, in this embodiment, the cover body 61 is attached to the portion where the lateral beam 4 is not attached so that the slit-shaped receiving portion 27 is not visible from the outside. As shown in FIG. 4, the cover body 61 has a flange portion 62 similar to the flange portion 41a provided at the end portion of the lateral beam 4, and the flange portion 62 is above the receiving portion 27. In addition to being inserted through the opening 28 of the above, in the inserted state, the portion having the receiving portion 27 is made visible as a sphere by being integrated with the joint member 2 by the curved head 63 (FIGS. 1 and FIG. 5).

Similarly, with respect to the upper mounting portion 21, there are places where the vertical beam 3 cannot be mounted, such as the uppermost portion of the rack 1. Therefore, the upper cover body 64 as shown in FIG. 1 is also attached to the upper mounting portion 21. The upper cover body 64 has the same male screw portion as the vicinity of the male screw portion 31 of the vertical beam 3, and is prevented from coming off by screwing the male screw portion protruding downward like the vertical beam 3. The member 5 is pressed so that the pull-out prevention member 5 is fixed and the recess 22 of the upper mounting portion 21 can be hidden. Although the upper cover body 64 having the same structure as the vertical beam 3 is used here, a member having a curved head is screwed into the recess 22 as in the cover body 61 attached to the side surface. It may be made to form a sphere as a whole.

Next, a method for assembling the rack 1 using the joint member 2 configured in this way will be described.

First, when the vertical beam 3 is attached below the joint member 2, the screw 7 is inserted into the recess 22 of the joint member 2 and the screw 7 is projected downward from the screw hole 26 of the bottom 25 as shown in FIG. , Is screwed onto the female screw portion 32 of the vertical beam 3. When the vertical beam 3 is screwed from below, after inserting the screw 7 into the recess 22 of the joint member 2, the screw 7 is rotated by a screwdriver and screwed to the female screw portion 32 of the vertical beam 3. Let me. At this time, since the bottom surface of the joint member 2 is flat and the end of the vertical beam 3 is also flat, the vertical beam 3 can be stably attached.

Next, the lateral beam 4 is attached to the joint member 2. When the lateral beam 4 is attached, the flange portion 41a of the lateral beam 4 is inserted into the slit-shaped receiving portion 27 of the joint member 2 from above. At this time, since the flange portion 41a is inserted so as to be in close contact with the slit-shaped receiving portion 27, even if the lateral beam 4 is attached in a stable state and an external force acts on the lateral beam 4, even if an external force acts on the lateral beam 4. The force in all directions can be received by the flange portion 41a that is in close contact with the portion 27.

On the other hand, when the rack 1 is assembled in this way, there are places where the lateral beam 4 cannot be attached. Therefore, as shown in FIGS. 1, 5, 6 and the like, the slit-shaped receiving portion 27 is used for such places. The cover body 61 is inserted into and attached to. As a result, the receiving portion 27 on the side surface can be hidden, and the curved head portion 73 of the cover body 61 makes it possible to visually recognize the cover body 61 so as to form a spherical shape as a whole as shown in FIG.

Then, after the lateral beam 4 and the cover body 61 are attached in this way, the disconnection prevention member 5 is attached above the joint member 2. At this time, the pull-out prevention member 5 is attached so as to fit into the edge portion 22a of the upper end outer peripheral portion of the concave portion 22, and then the vertical beam 3 is inserted from above the central hole 51.

Then, the pull-out prevention member 5 is covered in this way, and the male screw portion 31 of the vertical beam 3 is inserted into the center hole 51 of the pull-out prevention member 5 and screwed into the screw groove of the recess 22. Then, the detachment prevention member 5 is fixed by the end of the rod-shaped member 30 of the vertical beam 3, and the lateral beam 4 and the cover body 61 are prevented from being detached. Further, by attaching the disconnection prevention member 5 in this way, the connecting portion between the joint member 2 and the horizontal beam 4 and the vertical beam 3 is hidden so that the joint member 2 can be visually recognized as one sphere as a whole. Become.

Then, in a place where the vertical beam 3 cannot be attached, such as the upper surface portion of the rack 1, the upper cover body 64 is screwed from above the pull-out prevention member 5, thereby fixing the pull-out prevention member 5 and making a recess. 22 can be hidden.

As described above, according to the above embodiment, in the joint member 2 capable of connecting the vertical beam 3 and the horizontal beam 4, the upper mounting portion 21 for mounting the end portion of the vertical beam 3 on the upper portion and the lower mounting portion 21. A slit-shaped receiving portion for inserting and fixing the lower mounting portion 24 for mounting the end portion of the other vertical beam 3 to the portion and the flange portion 41a provided at the end portion of the lateral beam 4 on the side portion from above. Since the 27 and the pull-out prevention member 5 for preventing the flange portion 41a inserted into the receiving portion 27 from coming off are provided, the vertical beam 3 and the horizontal beam 4 can be connected by using a single member. In addition, even when the distance between the left and right vertical beams 3 is fixed by the horizontal beam 4, the horizontal beam 4 can be later inserted into the slit-shaped receiving portion 27 from the top, bottom, left, and right to be attached. .. Moreover, the pull-out prevention member 5 can prevent the lateral beam 4 from coming off and stabilize the rack 1.

The present invention is not limited to the above embodiment, and can be implemented in various embodiments.

For example, in the above embodiment, the disk-shaped flange portion 41a is provided as the insertion portion 41, but the shape is not limited to this, and the rectangular flange portion or the rod-shaped member 40 is provided along the axial direction. It may be configured by a protruding hook-shaped insertion portion.

Further, in the above embodiment, the vertical beam 3 and the horizontal beam 4 are made of members having a circular cross section, but may be made of members having a rectangular cross section.

Further, in the above embodiment, when the lateral beam 4 is attached, the flange portion 41a is inserted from the opening 28 above the receiving portion 27, but the flange portion 41a is inserted from the lateral direction or the downward direction. It may be. In this case, after the insertion, the flange portion 41a is configured to be prevented from coming off.

Further, in the above embodiment, the cover body 61 and the pull-out prevention member 5 are attached to form a sphere as a whole, but it may be configured to form a box shape as a whole.

Further, in the above embodiment, the grid-like rack 1 is assembled by the vertical beam 3 and the horizontal beam 4, but a plate-like body is later placed on the horizontal beam 4 assembled in this way to form a shelf board. It may be made available.

Further, in the above embodiment, the upper mounting portion 21 is screwed into the recess 22, and the lower mounting portion 24 is screwed with the screw 7, but these may be provided in reverse.

1 ... Rack 2 ... Joint member 21 ... Upper mounting part 22 ... Recessed portion 22a ... Edge 23 ... Screw groove 24 ... Lower mounting part 25 ... Bottom 26 ...・ Screw hole 27 ・ ・ ・ Receiving part 28 ・ ・ ・ Opening 3 ・ ・ ・ Vertical beam 30 ・ ・ ・ Rod-shaped member 31 ・ ・ ・ Male screw part 32 ・ ・ ・ Female screw part 33 ・ ・ ・ Flange part 4 ・ ・・ Horizontal beam 40 ・ ・ ・ Rod-shaped member 41 ・ ・ ・ Insertion part (41a flange part)
42 ... Gap 5 ... Removal prevention member 51 ... Central hole 52 ... Curved recess 61 ... Cover body 62 ... Flange portion 63 ... Head 64 ... Upper cover body 7 ···screw

Claims (6)

In the joint member that allows the vertical beam and the horizontal beam to be connected,
An upper mounting part for mounting the end of the vertical beam on the upper part,
A lower mounting part for mounting the end of another vertical beam on the lower part,
A receiving part that inserts and fixes the insertion part provided at the end of the lateral beam in the side part from either the top, bottom, left, or right direction.
A pull-out prevention member that prevents the insertion part inserted into the receiving part from coming off,
A joint member characterized by being equipped with. The joint member according to claim 1, wherein the pull-out prevention member prevents the insertion portion inserted into the receiving portion from coming off when the vertical beam is attached to the upper mounting portion. The joint member according to claim 1, wherein the upper mounting portion or the lower mounting portion is screwed by inserting a male screw portion provided at an end portion of the vertical beam. The joint member according to claim 1, wherein the upper mounting portion or the lower mounting portion is attached to a female screw portion provided at an end portion of the vertical beam via a screw inserted into the hollow portion. The joint member according to claim 1, wherein a cover body for hiding the receiving portion is inserted into the receiving portion to which the lateral beam is not attached. The joint member according to claim 1, wherein an upper cover body that hides the upper mounting portion is detachably provided on the upper mounting portion to which the vertical beam is not attached.

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