JP2022033843A - rack - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rack having a high degree of freedom of layout.

SOLUTION: A rack 1 comprises: a vertical frame 2; a horizontal frame 3 in a pipe-like shape whose at least one end 31 is opened; and a connector 4 attached to the vertical frame 2. The vertical frame 2 includes a holding part 23 for holding the connector 4. The connector 4 is capable of attaching/detaching a base end part 4A to/from the vertical frame 2, and supports the horizontal frame 3 through attachment to the holding part 23 of the vertical frame 2 prior to attachment to the horizontal frame 3 and through insertion of the one end 31 of the horizontal frame 3.

SELECTED DRAWING: Figure 4

COPYRIGHT: (C)2022,JPO&INPIT

Description

The present invention relates to a rack that can be used for shelves, storage, etc., and can also be used as a partition for partitioning a space.

Conventionally, there are racks having a frame structure. For example, the rack described in Patent Document 1. In this rack, the vertical frame and the horizontal frame are fixedly connected by welding, for example.

With such a connection, the shape of the frame-shaped portion formed by the vertical frame and the horizontal frame is fixed. For this reason, for example, when an attempt is made to arrange a box constituting a shelf or a storage case in a frame-shaped portion, the shape of the box is also determined because the shape of the frame-shaped portion is fixed (the box shown in Patent Document 1). See shape). The horizontal dimension of the entire rack is also a fixed dimension. Therefore, it was difficult to freely lay out the rack according to the installation location and usage conditions.

Chinese Design Registration No. 304361858 Gazette

Therefore, it is an object of the present invention to provide a rack having a high degree of freedom in layout.

The present invention includes a vertical frame, a pipe-shaped horizontal frame having at least one end open, and a connecting tool attached to the vertical frame, and the vertical frame has a holding portion for holding the connecting tool. The connecting tool has a base end portion that can be attached to and detached from the vertical frame, and is attached to the holding portion of the vertical frame prior to attachment to the horizontal frame, and one end of the horizontal frame. Is a rack that supports the horizontal frame by being inserted.

According to this, the horizontal frame can be provided or not provided depending on whether or not the connector is attached to the vertical frame. Therefore, the shape of the frame-shaped portion formed by the vertical frame and the horizontal frame can be set with a degree of freedom. Therefore, it is possible to incorporate accessories of various shapes such as a storage box into the frame-shaped portion set with a degree of freedom.

Further, the holding portion is a hole portion formed in the vertical frame, and the connecting tool engages with the hole portion so that the vertical frame and the connecting tool are held in a crossed state. The claw portion may be provided at the base end portion.

According to this, the connecting tool can be temporarily fixed by engaging the claw portion of the connecting tool with the hole portion of the vertical frame.

Further, the connecting tool or the horizontal frame has a pulling slope, and a fixing tool is used to fix the horizontal frame to the connecting tool, and the attachment force of the fixing tool to the connecting tool is increased. The pulling slope can be converted into a force that pulls the connector out of the vertical frame.

According to this, by attaching the fixing tool, a force for pulling out the connecting tool from the vertical frame is generated, and the claw portion of the connecting portion comes into close contact with the vertical frame. This ensures that the vertical frame and the horizontal frame are fixed.

Further, the connector has a threaded portion and a first countersunk hole concentric with the threaded portion, and the horizontal frame has a second countersunk hole having a slope having the same inclination as the first countersunk hole. The fixture is a countersunk screw, which is screwed into the threaded portion through the first countersunk hole and the second countersunk hole, the connector is attached to the vertical frame, and the horizontal frame is attached to the connector. In the inserted state, the center of the first countersunk hole in the connector can be shifted toward the vertical frame with respect to the center of the second countersunk hole in the horizontal frame.

According to this, as the countersunk screw is screwed in, the connector is pulled out from the vertical frame so that the first countersunk hole and the second countersunk hole are concentric with each other. As a result, the connecting tool and the horizontal frame are firmly fixed to the vertical frame. In addition, the structure is simple because it is a combination of countersunk holes and countersunk screws.

Further, the connecting tool has a guide slope on the tip end side, and the guide slope is brought into contact with the inner surface of the horizontal frame as the horizontal frame is inserted into the connecting tool, so that the horizontal frame is connected. It can be guided to cover the ingredients.

According to this, since the horizontal frame is guided by the connecting tool with the insertion, it is easy to attach the horizontal frame to the connecting tool.

Further, the connecting tool may have a claw portion upwardly formed at the proximal end portion, and may have an escape slope having a low proximal end side and a high distal end side at a position away from the claw portion toward the distal end side.

According to this, when the connector is inserted diagonally into the vertical frame, the connector does not interfere with the vertical frame.

Further, the connecting tool may be mounted on the vertical frame so that the claw portion is formed upward at the base end portion and the claw portion is rotated from the vertically oriented state to the horizontally oriented state. ..

According to this, since the connecting tool can be moved so as to be tilted down, it is easy to attach the connecting tool to the vertical frame.

INDUSTRIAL APPLICABILITY The present invention is formed by a vertical frame and a horizontal frame, and it is possible to incorporate accessories of various shapes such as a storage box into a frame-shaped portion set with a degree of freedom. Therefore, it is possible to provide a rack with a high degree of freedom in layout.

It is a perspective view which shows the installation example of the rack which concerns on one Embodiment of this invention. It is an enlarged perspective view of a main part which shows the relationship between the vertical frame and a connecting tool in the rack. It is a perspective view of the bottom side which shows the said connector. It is an enlarged perspective view of a main part which shows the relationship between the vertical frame, the connecting tool, and the horizontal frame in the rack. It is a longitudinal sectional view in the longitudinal direction which shows the connecting tool in the rack. It is a figure which showed the state in the process of attaching a connecting tool to the vertical frame in the said rack, in the vertical sectional view of the vertical frame. It is a figure which showed the state which attached the connecting tool to the vertical frame in the said rack, in the vertical sectional view of the vertical frame. It is a vertical sectional view which shows the relationship between the connecting tool and the horizontal frame in the rack, and shows the state before fixing both with a countersunk screw. It is a vertical sectional view which shows the relationship between the connecting tool and the horizontal frame in the rack, and shows the state after fixing both with a countersunk screw.

Next, the rack according to the present invention will be described by taking up one embodiment. The expressions "vertical" and "horizontal" in the following are expressions based on the direction of the rack 1 in the present embodiment (for example, the state shown in FIG. 1).

In the frame portion (the portion excluding the accessories) in the rack 1 of the present embodiment, the vertical frame 2 and the horizontal frame 3 are connected via a connecting tool 4, and a fixing portion (a countersunk screw 5 in the present embodiment) is used. It is configured by fixing the vertical frame 2 and the horizontal frame 3. As shown in FIG. 1, the rack 1 of the present embodiment is used by appropriately combining accessories such as a shelf board and a storage box with the frame portion.

The vertical frame 2 is a frame provided so as to extend upward from the installation surface (floor surface in the room, etc.) in the used state of the rack 1. The vertical frame 2 is formed by fixing at least two vertical bar portions 21 and a plurality of horizontal bar portions 22 connecting the vertical bar portions 21 to each other by welding or the like. In the present embodiment, the frame is a substantially ladder-shaped flat frame in which two vertical bar portions 21 are arranged in parallel and six horizontal bar portions 22 are provided so as to be orthogonal to each vertical bar portion 21. By configuring the vertical frame 2 in this way, the vertical frame 2 can be treated like a panel, so that the installation work of the element extending in the vertical direction is easy. The vertical bar portion 21 and the horizontal bar portion 22 have a pipe shape, specifically, as shown in FIG. 2, the cross-sectional shape orthogonal to the axis is a quadrangle (more specifically, a square). It is made of metal.

The vertical frame 2 has a holding portion for holding the connector 4. Specifically, the holding portion is a hole portion 23 formed in the vertical frame 2. As shown in FIG. 2, the hole portion 23 of the present embodiment is configured as a set in which two vertically long rectangular through holes are arranged side by side in the horizontal direction on the vertical bar portion 21 in the vertical frame 2. .. The hole portion 23 as the holding portion is formed on two surfaces of the vertical bar portion 21 in the vertical frame 2 excluding the surface provided with the horizontal bar portion 22 and the facing surface thereof (in FIG. 2, the front side of the drawing). Only the side hole 23 is shown). However, the present invention is not limited to this, and the hole portion 23 can be formed on one or two surfaces of the three surfaces excluding the surface provided with the horizontal bar portion 22. Further, in a normal case, the horizontal frame 3 is provided in the horizontal direction. Therefore, the holes 23 in each of the plurality of vertical frames 2 are formed so as to be located at the same height at the time of installation. However, the horizontal frame 3 can be provided so as to be inclined with respect to the vertical frame 2, and in that case, the holes 23 in each vertical frame 2 can be positioned at different heights.

The height dimension of the vertical frame 2 can be arbitrarily determined. Therefore, it is also possible to combine the vertical frame 2 having a high overall height and the vertical frame 2 having a low overall height to form a stepped or uneven skeleton portion having a different upper end height. Further, the number of holes 23 formed in the vertical bar portion 21 in the vertical frame 2 can be arbitrarily determined.

The horizontal frame 3 has a metal pipe shape, specifically, as shown in FIG. 4, has a rectangular cross-sectional shape (more specifically, a square) orthogonal to the axis, and faces at least the vertical frame 2. One end 31, which is an end portion, is open. In the present embodiment, it is a real straight pipe having a straight axis, and both ends are open. Both end faces of the horizontal frame 3 are planes orthogonal to the axis. When the horizontal frame 3 is provided so as to be inclined with respect to the vertical frame 2, both end faces of the horizontal frame 3 are planes that are inclined along the axis. Since the horizontal frame 3 has a pipe shape, the constituent material (metal material in this embodiment) is positioned so as to surround the entire circumference of the internal space. The horizontal frame 3 can be made to have excellent bending strength as compared with the partially open form. Therefore, the load of the shelf board and the storage box can be reliably borne. The horizontal frame 3 may be internally formed with ribs for reinforcement, or may have irregularities (specifically, grooves or protrusions) for reinforcement.

As shown in FIG. 4, the horizontal frame 3 can be attached to and detached from the vertical frame 2 via a connector 4 described later. Therefore, the cross-sectional shape of the inner surface of the horizontal frame 3 that is orthogonal to the axis does not hinder the insertion into the connector 4, and the outer circumference of the connector 4 is not rattled after the insertion. It is formed larger than the shape.

As shown in FIG. 4, the connector 4 is a component attached to the vertical frame 2. The connector 4 has a base end portion 4A that can be attached to and detached from the vertical frame 2. For this reason, for example, compared to a configuration in which a branch portion for attaching the horizontal frame 3 is fixedly provided to the vertical frame 2 by welding or the like, when the horizontal frame 3 is not attached, an article or a human hand can handle it. It is aesthetically pleasing because it can eliminate protruding parts that may get caught and no extra protrusions appear. Further, since the thickness of the entire vertical frame 2 can be reduced due to the absence of the branch portion, the vertical frame 2 can be formed into a flat shape, and the loading efficiency when transporting by truck or the like is improved. Further, the number of welded portions of the vertical frame 2 can be reduced by the number of the connecting tools 4, and the holes 23 may be machined instead, so that the manufacturing cost of the vertical frame 2 can be reduced.

As shown in FIG. 7, the coupling tool 4 is engaged with the vertical frame 2 by hooking the base end portion 4A of the coupling tool 4 into the hole portion 23 of the vertical frame 2. By engaging the connector 4 with the vertical frame 2, the connector 4 can be temporarily fixed. Here, "temporary fixing" means that even if the worker releases his / her hand from the connector 4, the state of being caught by the vertical frame 2 can be maintained, and the operator can easily hold the connector 4 to easily hold the vertical frame 2. It is in a state where it can be removed from. Since the connector 4 can be temporarily fixed, it is compared with a configuration in which an engaging portion with respect to the vertical frame 2 is directly provided at the end of the horizontal frame 3 or a configuration in which a separate engaging member is attached to the end of the horizontal frame 3. , The horizontal frame 3 is easy to attach. Finally, by fixing the connecting tool 4 and the horizontal frame 3 using the countersunk screw 5, which is a fixing tool described later, the connecting tool 4 is fixed so as not to come off from the vertical frame 2. As shown in FIG. 4, the connector 4 is attached to the holding portion of the vertical frame 2 prior to the attachment of the connector 4 to the horizontal frame 3. Then, one end 31 of the horizontal frame 3 is inserted into the connector 4 in the axial direction (the direction of the arrow shown in FIG. 4) to support the horizontal frame 3.

As shown in FIG. 2, the connector 4 of the present embodiment is integrally formed on the main body portion 41, the claw portion 42 integrally formed on the base end side of the main body portion 41, and the tip end side of the main body portion 41. It includes a formed tip protrusion 43. Further, the screw fixing portion 44, which is formed separately from the main body portion 41 and is integrated by being fitted to the main body portion 41, is provided. The connector 4 is formed, for example, by bending a metal plate.

The main body portion 41 has two parallel side plate portions 411 and one bottom plate portion 412 connecting the lower end edges of the both side plate portions 411, and is orthogonal to an axis extending in the longitudinal direction of the connector 4. The cross-sectional shape is a sideways "U" shape. At the time of arrangement on the vertical frame 2, as shown in FIG. 4, the upper part of the main body 41 is in an open state. As shown in FIG. 5, a first countersunk hole 45 penetrates the bottom plate portion 412 in the thickness direction. The curved slope 451 of the first countersunk hole 45 is formed downward. Here, a fixative is used to fix the horizontal frame 3 to the connector 4. In this embodiment, a countersunk screw 5 is used as the fixing portion as shown in FIG. The countersunk screw 5 is passed through the first countersunk hole 45. The countersunk screw 5 is screwed into the screw fixing portion 44 attached to the main body portion 41.

The claw portion 42 is a portion that engages with the claw portion 42 by being inserted into the hole portion 23 of the vertical frame 2. The claw portion 42 holds the vertical frame 2 and the connecting tool 4 in a crossed state. In the present embodiment, as shown in FIG. 4, the axis of the vertical bar portion 21 in the vertical frame 2 and the axis of the main body portion 41 in the connector 4 are held in an orthogonal state. When the horizontal frame 3 is provided at an angle with respect to the vertical frame 2, the axis of the vertical bar portion 21 in the vertical frame 2 and the axis of the main body 41 in the connector 4 are held at an angle corresponding to the inclination. .. The claw portion 42 abuts on the outer surface of the vertical frame 2 with the insertion portion 421 inserted inside the vertical frame 2 and the insertion portion 421 inserted inside the vertical frame 2 as shown in FIG. 7. As a result, it has a frame contact portion 422 that holds the angle of the connector 4 with respect to the vertical frame 2. The frame contact portion 422 is located below the insertion portion 421.

Of the claw portions 42, the insertion portion 421 is formed upward at the base end portion 4A of the connector 4. Therefore, when the insertion portion 421 is inserted into the hole portion 23 of the vertical frame 2, the vertical orientation shown in FIG. 6 in which the axis of the connector 4 extends diagonally is changed to the horizontal orientation shown in FIG. The connector 4 is attached to the vertical frame 2 so as to rotate (rotate clockwise in the figure). A part of the insertion portion 421 abuts on the inner surface of the vertical frame 2, and the frame abutting portion 422 abuts on the outer surface of the vertical frame 2. This is the temporarily fixed state, and the mounted state of the connector 4 is maintained. Since the insertion portion 421 can be temporarily fixed by inserting it into the hole portion 23, the attachment work (work for temporary fixing) of the connector 4 can be performed with one hand. Therefore, the behavior of the worker is not easily restricted, and the workability is good. Although it is not clear in the figure, one of the two rows is formed higher (slightly higher) in one row of the two rows and the other row with respect to the lower side 4211 of the insertion portion 421 in the claw portion 42. .. With such a height relationship, the lower side 4211 of the insertion portion 421 in one row out of the two rows surely abuts on the inner peripheral lower edge of the hole portion 23 (see FIG. 7). Incidentally, the lower side 4211 in the other row of insertion portions 421 is slightly floated with respect to the inner peripheral lower edge of the hole portion 23. Therefore, in the temporarily fixed state, the engagement state of the insertion portion 421 with the vertical frame 2 is stable. Since the connecting tool 4 is firmly fixed to the vertical frame 2 as the countersunk screw 5 is screwed into the connecting tool 4, the lower side 4211 comes into contact with the connecting tool 4 by one row at the stage of temporary fixing. That's no problem at all.

Here, the connector 4 has an escape slope 46. The escape slope 46 is formed at a position away from the claw portion 42 on the distal end side, and is a slope having a low proximal end side and a high distal end side. Specifically, an escape slope 46 is formed on the upper surface of the main body portion 41 near the base end of the side plate portion 411. The escape slope 46 is, in other words, the upper edge of the notch formed on the upper surface of the side plate portion 411 near the base end. The escape slope 46 is continuous with the claw portion 42.

As described above, the connector 4 is mounted on the vertical frame 2 so as to be rotated from the vertically oriented state to the horizontally oriented state. When the connector 4 is inserted diagonally into the vertical frame 2 in this way, the base end side portion of the main body portion 41 (side plate portion 411) is less likely to interfere with the vertical frame 2 due to the presence of the relief slope 46. , As shown in FIG. 6, it is easy to orient the connector 4 vertically. Further, since the connector 4 may be moved so as to be tilted down, the connector 4 can be easily attached to the vertical frame 2.

Further, the tip protruding portion 43 extends from one of the two side plate portions 411 in the main body portion 41 (in the present embodiment, the one on the right side when viewed from the tip side in the state shown in FIG. 2) to the tip side. It is provided. In other words, the tip protruding portion 43 is a portion in which a part of the main body portion 41 is extended toward the tip side. Here, an attempt is made to insert the pipe-shaped horizontal frame 3 into the end of the main body 41 having an outer dimension slightly smaller than the inner dimension of the horizontal frame 3 and having a cross-sectional shape of "U". Then, when the horizontal frame 3 hits a part of the end portion of the main body portion 41, it may be caught and difficult to insert. On the other hand, when the tip protruding portion 43 is provided, first, the tip protruding portion 43 having an outer dimension sufficiently smaller than the inner dimension of the horizontal frame 3 (sufficiently smaller than the width dimension in the present embodiment) is provided. Since the horizontal frame 3 may be inserted, the catch between the main body 41 and the horizontal frame 3 can be reduced, and the horizontal frame 3 can be smoothly inserted.

Further, the connector 4 has an induction slope 47 on the tip end side. In the present embodiment, as shown in FIG. 2, an induction slope 47, which is a slope that descends toward the tip, is formed at the upper end of the tip protrusion 43. As the horizontal frame 3 is inserted into the connector 4, the guide slope 47 comes into contact with the inner surface (specifically, the upper inner surface) of the pipe-shaped horizontal frame 3, so that the horizontal frame 3 comes into contact with the guide slope 47. It rises accordingly and guides the connector 4 to cover it. Therefore, in addition to the ease of insertion by the tip protruding portion 43 described above, the presence of the guide slope 47 further induces the horizontal frame 3 by the connecting tool 4 due to the insertion of the horizontal frame 3, so that the connecting tool 4 is used. Easy to attach the horizontal frame 3.

The screw fixing portion 44 is attached to the side plate portion 411 of the connecting tool 4 by fitting. The screw fixing portion 44 holds the hexagon nut 6 arranged on the bottom plate of the connecting tool 4 so as not to move or rotate with respect to the connecting tool 4. A countersunk screw 5 as a fixing tool is screwed into the hexagon nut 6. The screw fixing portion 44 is not limited to this embodiment, and may have various forms. For example, it can be integrally formed with the main body 41 of the connector 4.

Next, the interaction between the connector 4 and the horizontal frame 3 will be described. The connector 4 or the horizontal frame 3 has a pulling slope. In this embodiment, as shown in FIGS. 8 and 9, both the connecting tool 4 and the horizontal frame 3 have a pulling slope. Due to this pulling slope, the attachment force of the fixative to the connector 4 is converted into a force for pulling out the fixture 4 from the vertical frame 2. As a specific structure for force conversion, the connector 4 has a screw portion (in this embodiment, a hexagon nut 6 held by the screw fixing portion 44) and a first countersunk hole 45 concentric with the screw portion. is doing. Correspondingly, the horizontal frame 3 has a second countersunk hole 32 having a slope having the same slope as the first countersunk hole 45. The curved slope 321 of the second countersunk hole 32 is also formed downward like the first countersunk hole 45. In the present embodiment, the drawn slope corresponds to a part of each dish hole, that is, a portion of the curved slope 321 and 451 in each dish hole. Then, the countersunk screw 5 as a fixture penetrates the first countersunk hole 45 and the second countersunk hole 32 and is screwed into the screw portion.

When the connector 4 is attached to the vertical frame 2 and the horizontal frame 3 is inserted into the connector 4, as shown in FIG. 8, the center of the first countersunk hole 45 in the connector 4 is the second countersunk hole in the horizontal frame 3. The first countersunk hole 45 and the second countersunk hole 32 are formed so as to be displaced closer to the vertical frame 2 than the center of 32 (FIG. 8 exaggerates the deviation). Therefore, as the countersunk screw 5 is screwed into the connector 4, the slope 51 of the head of the countersunk screw 5 is pressed against the countersunk holes 32 and 45. By the pressing force at this time, as shown in FIG. 9, the connector 4 is pulled out from the vertical frame 2 so that the first countersunk hole 45 and the second countersunk hole 32 are concentric with each other. Along with this withdrawal, there is no play between the claw portion 42 of the connector 4 (specifically, the upper contact surface 4212 and the lower contact surface 4213) and the inner surface of the vertical frame 2, and they are in close contact with each other (pressure contact). become. That is, by attaching the fixing tool (counter-screw 5), a force for pulling out the connecting tool 4 from the vertical frame 2 is generated, and the claw portion 42 of the connecting portion comes into close contact with the vertical frame 2. As a result, the vertical frame 2 and the horizontal frame 3 are securely and firmly fixed. Further, in the present embodiment, the structure is simple because the fitting 4 can be pulled out from the vertical frame 2 by the combination of the countersunk holes 32 and 45 and the countersunk screws 5, which are general mechanical elements.

According to the rack 1 of the present embodiment configured as described above, the horizontal frame 3 may or may not be provided depending on whether or not the connector 4 is attached to the vertical frame 2. Therefore, in the frame portion formed by the vertical frame 2 and the horizontal frame 3, the shape of the frame-shaped portion that defines the space surrounded by the vertical frame 2 (vertical bar portion 21 and the horizontal bar portion 22) and the horizontal frame 3. Can be set with a degree of freedom. For example, in the rack 1 according to the installation example shown in FIG. 1, the long horizontal frame 3 provided in the central portion of the drawing is removed without providing the third frame from the top. Therefore, the frame-shaped portion between the second and fourth frames from the top has a space S wider in the vertical direction than the other frame-shaped portions. Therefore, it is possible to incorporate accessories of various shapes such as a storage box into the frame-shaped portion set with a degree of freedom.

For example, a plate-shaped member can be attached to the frame-shaped portion of the rack 1 of the present embodiment and used as a shelf plate, a back plate, a side plate, a partition plate, or the like. Further, for example, a box-shaped member can be attached and used as a storage box or the like. The storage box can be open in the front (the state shown in the second and third stages from the top of FIG. 1), open in the front and rear, and have a door. Further, by branching the horizontal bar from the horizontal frame 3 or using the horizontal frame 3 on which the hook is formed, a hanger for clothes can be hung. Further, by attaching the horizontal frame 3 only to the upper part of the two vertical frames 2, that portion can be used as a gate. For example, a biophilic design (a design that makes the viewer feel nature, for example, a greening design) can be applied to this part. Further, as shown in FIG. 1, by using a plurality of horizontal frames 3 having different lengths, it is possible to provide wide and narrow spaces between the vertical frames 2.

Further, the rack 1 of the present embodiment may be provided along the wall surface of the building and used only as a shelf, or may be provided inside the room and used as a partition-combined shelf.

As described above, the rack 1 of the present embodiment has a high degree of freedom in layout and is easy to use.

Although the present invention has been described above by taking up embodiments, this description is merely an example. The rack according to the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the gist of the present invention.

For example, the vertical frame 2 is integrally formed in the above embodiment, but the vertical bar portion 21 may be formed by a combination of a plurality of short rod-shaped bodies. Further, similarly to the horizontal frame 3 of the embodiment, the horizontal bar portion 22 can be connected to the vertical bar portion 21.

Further, the vertical frame 2 and the horizontal frame 3 are not limited to those made entirely of metal as in the above embodiment, and may be configured by appropriately combining, for example, wood, resin, and metal. By doing so, the vertical frame 2 and the horizontal frame 3 can be given an appearance accent.

Further, as a configuration having the same function as the tip protruding portion 43, the tip portion of the main body portion 41 in the connector 4 may be narrowed down, or another component may be attached to the tip end of the main body portion 41 to form a narrowed shape. You can also do it. Further, in the above-described embodiment, the tip protruding portion 43 is provided so as to extend from one of the two side plate portions 411 to the tip side. However, the present invention is not limited to this, and both of the two side plate portions 411 can be extended to the tip end side.

Further, the pulling slope of the embodiment corresponds to the portions of the curved slopes 451 and 321 of the first countersunk hole 45 and the second countersunk hole 32. However, the present invention is not limited to this, and the pulling slope may be formed in a planar shape, and for example, a wedge-shaped fixture may be used, and various forms may be used.

1 Rack 2 Vertical frame 23 Holding part, hole 3 Horizontal frame 31 One end of horizontal frame 32 2nd countersunk hole 321 Pulling slope, curved slope of 2nd countersunk hole 4 Connecting tool 4A Base end of connecting tool 42 Claw part 45th 1 countersunk hole 451 pulling slope, curved slope of 1st countersunk hole 46 escape slope 47 induction slope 5 fixture, countersunk screw 61 thread, hexagon nut

Claims (7)

It includes a vertical frame, a horizontal frame that is pipe-shaped and has at least one end open, and a connector that is attached to the vertical frame.
The vertical frame has a holding portion for holding the connector, and the vertical frame has a holding portion.
The connecting tool has a base end portion that can be attached to and detached from the vertical frame, and is attached to the holding portion of the vertical frame prior to attachment to the horizontal frame, and one end of the horizontal frame is inserted. A rack that supports the horizontal frame. The holding portion is a hole portion formed in the vertical frame, and is a hole portion.
The rack according to claim 1, wherein the connecting tool has a claw portion engaged with the hole portion at the base end portion so that the vertical frame and the connecting tool are held in a crossed state. The connector or the lateral frame has a pulling slope and
Fixtures are used to secure the lateral frame to the fixture.
The rack according to claim 1 or 2, wherein the attachment force of the fixture to the connector is converted into a force of pulling the connector from the vertical frame by the pulling slope. The connector has a threaded portion and a first countersunk hole concentric with the threaded portion.
The horizontal frame has a second countersunk hole having a slope having the same slope as the first countersunk hole.
The fixative is a countersunk screw, which is screwed into the threaded portion through the first countersunk hole and the second countersunk hole.
With the connector attached to the vertical frame and the horizontal frame inserted into the connector, the center of the first countersunk hole in the connector is larger than the center of the second countersunk hole in the horizontal frame. The rack according to claim 3, which is displaced toward the vertical frame. The connector has a guide slope on the tip side and has a guide slope.
Claims 1 to 4, wherein the guide slope guides the horizontal frame to cover the connector by abutting the inner surface of the horizontal frame as the horizontal frame is inserted into the connector. The rack described in either. The connector according to claim 1 to 5, wherein the claw portion is formed upward at the proximal end portion, and the connector has an escape slope having a low proximal end side and a high distal end side at a position away from the claw portion toward the distal end side. The rack described in either. The connecting tool is attached to the vertical frame so that a claw portion is formed upward at the base end portion and the connecting tool is rotated from a vertically oriented state to a horizontally oriented state. The rack according to any one of 5.

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