JP7212748B2 - rack - Google Patents

Description

TECHNICAL FIELD The present invention relates to a rack that can be used as a shelf, a storeroom, or the like, and also can be used as a partition for partitioning a space.

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

With such a connection, the shape of the frame-like portion formed by the vertical frame and the horizontal frame is fixed. For this reason, for example, if you try to arrange a box that constitutes a shelf or a container in the frame-shaped portion, the shape of the box is also determined by the fixed shape of the frame-shaped portion (the box illustrated in Patent Document 1). shape). Moreover, the lateral dimension of the entire rack is also a fixed dimension. Therefore, it has been difficult to perform a free layout according to the rack installation location and usage conditions.

Chinese Design Registration No. 304361858

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a rack with a high degree of layout freedom.

The present invention comprises a vertical frame, a pipe-shaped horizontal frame with at least one open end, and a connector attached to the vertical frame, wherein the vertical frame has a holding portion for holding the connector. The connector has a base end portion that is detachable from the vertical frame, is attached to the holding portion of the vertical frame prior to attachment to the horizontal frame, and is attached to the one end of the horizontal frame. is inserted to support the horizontal frame.

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 storage boxes, into the frame-shaped portion that is set with a degree of freedom.

Further, the holding portion is a hole formed in the vertical frame, and the connector is engaged with the hole so that the vertical frame and the connector are held in a crossed state. A 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 of the vertical frame.

In addition, the connecting device or the horizontal frame has a drawing slope, and a fixing device is used to fix the horizontal frame to the connecting device, and the mounting force of the fixing device to the connecting device is The pulling slope may convert the force to pull out the connector from the vertical frame.

According to this, by attaching the fixture, a force is generated to pull out the connector from the vertical frame, and the claw portion of the connector is brought into close contact with the vertical frame. Thereby, the vertical frame and the horizontal frame are securely fixed.

Further, the connector has a threaded portion and a first countersunk hole concentric with the threaded portion, and the lateral frame has a second countersunk hole having an inclined surface with the same inclination as the first countersunk hole, The fixture is a countersunk screw that is screwed into the threaded portion through the first countersunk hole and the second countersunk hole to attach the connector to the vertical frame and attach the horizontal frame to the connector. In the inserted state, the center of the first countersunk hole in the connector may be shifted closer to the vertical frame than the center of the second countersunk hole in the horizontal frame.

According to this, as the countersunk screw is screwed in, the coupler is pulled out from the vertical frame so that the first countersunk hole and the second countersunk hole are concentric. As a result, the connector and the horizontal frame are firmly fixed to the vertical frame. Moreover, the structure is simple because it is a combination of a countersunk hole and a countersunk screw.

In addition, the connector has a guide slope on the tip side, and the inner surface of the lateral frame comes into contact with the guide slope as the lateral frame is inserted into the connector, so that the lateral frame is connected to the connector. It can be guided to cover the tool.

According to this, since the horizontal frame is guided by the connector as it is inserted, it is easy to attach the horizontal frame to the connector.

In addition, the connector has a claw portion formed upward at the base end portion, and has a clearance slope that is low on the base end side and high on the tip side at a position away from the claw portion toward the tip side.

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

In addition, the connector has a claw portion formed upward at the base end portion, and can be attached to the vertical frame by being rotated from a vertically oriented state to a horizontally oriented state. .

According to this, the connector can be easily attached to the vertical frame because it is sufficient to move the connector so as to lay it down.

According to the present invention, accessories of various shapes such as a storage box can be incorporated into the frame-shaped portion formed by the vertical frame and the horizontal frame and set with a degree of freedom. Therefore, it is possible to provide a rack with a high degree of layout freedom.

1 is a perspective view showing an installation example of a rack according to one embodiment of the present invention; FIG. FIG. 4 is an enlarged perspective view of a main part showing a relationship between a vertical frame and a connector in the rack; It is a perspective view of the bottom side which shows the said connector. FIG. 4 is an enlarged perspective view of a main part showing the relationship between a vertical frame, a connector, and a horizontal frame in the rack; FIG. 4 is a longitudinal longitudinal section showing a connector in the rack; It is the figure which showed the state in the middle of attaching a coupling tool to the vertical frame in the said rack by the longitudinal cross-sectional view of the vertical frame. It is the figure which showed the state which attached the connector to the vertical frame in the said rack by the vertical cross-sectional view of the vertical frame. FIG. 4 is a vertical cross-sectional view showing the relationship between the connecting member and the horizontal frame in the rack, showing a state before fixing them with countersunk screws; FIG. 4 is a vertical cross-sectional view showing the relationship between the connecting member and the horizontal frame in the rack, showing the state after both are fixed with countersunk screws.

Next, the rack according to the present invention will be described with reference to one embodiment. Note that the expressions “vertical” and “horizontal” below are expressions based on the directions in the state of use of the rack 1 of the present embodiment (for example, the state shown in FIG. 1).

The frame portion (the portion excluding the accessories) of the rack 1 of the present embodiment includes a vertical frame 2 and a horizontal frame 3 that are connected via connectors 4, and fixed portions (counter-sunk screws 5 in this embodiment). It is configured by fixing a vertical frame 2 and a horizontal frame 3 . As shown in FIG. 1, the rack 1 of the present embodiment is used by appropriately combining accessories such as shelves and storage boxes with the frame portion.

The vertical frame 2 is a frame provided so as to extend upward from an installation surface (an indoor floor surface, etc.) when the rack 1 is in use. The vertical frame 2 is formed by fixedly combining at least two vertical rod portions 21 and a plurality of horizontal rod portions 22 connecting the vertical rod portions 21 by welding or the like. In this embodiment, the frame is a substantially ladder-shaped flat frame in which two vertical rod portions 21 are arranged in parallel and six horizontal rod portions 22 are provided so as to be perpendicular to each vertical rod portion 21 . By constructing the vertical frame 2 in this way, the vertical frame 2 can be handled like a panel, so that the work of installing elements extending in the vertical direction is simple. The vertical rod portion 21 and the horizontal rod portion 22 are pipe-shaped. More specifically, as shown in the cross section of the vertical rod portion 21 in FIG. and is made of metal.

The vertical frame 2 has a holding portion that holds the connector 4 . The holding part is specifically the hole 23 formed in the vertical frame 2 . As shown in FIG. 2, the holes 23 of the present embodiment are formed by arranging two vertically long rectangular through-holes in parallel in the vertical rod portion 21 of the vertical frame 2 as one set. . Hole portions 23 as holding portions are formed on two surfaces of the vertical rod portion 21 of the vertical frame 2, excluding the surface on which the horizontal rod portion 22 is provided and the opposite surface thereof (in FIG. Only side holes 23 are shown). However, the holes 23 may be formed on one or two of the three surfaces excluding the surface on which the horizontal rod portion 22 is provided. Moreover, in the normal case, the horizontal frame 3 is provided horizontally. Therefore, the holes 23 in each of the plurality of vertical frames 2 are formed so as to be positioned at the same height when installed. However, it is also possible to provide the horizontal frame 3 inclined with respect to the vertical frame 2, in which 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 determined arbitrarily. Therefore, by combining the vertical frame 2 with a high overall height and the vertical frame 2 with a low overall height, it is also possible to form a frame portion having a stepped shape with different upper end heights or unevenness. Also, the number of holes 23 formed in the vertical rods 21 of the vertical frame 2 can be determined arbitrarily.

The horizontal frame 3 has a shape of a metal pipe, specifically, as shown in FIG. One end 31 is open. In this embodiment, it is a single straight pipe with a straight axis, and both ends are open. Both end surfaces of the horizontal frame 3 are surfaces perpendicular to the axis. In addition, when the horizontal frame 3 is inclined with respect to the vertical frame 2 , both end surfaces of the horizontal frame 3 are inclined with respect to the axis. Since the horizontal frame 3 is pipe-shaped, 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 have excellent bending strength as compared with a partially opened form. Therefore, the load of the shelf board and the storage box can be surely borne. The horizontal frame 3 may be internally provided with ribs for reinforcement, or may be provided with unevenness (specifically, grooves or projections) 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, which will be described later. For this reason, the cross-sectional shape of the inner surface of the horizontal frame 3 perpendicular to the axis should be such that the outer circumference of the connector 4 does not interfere with insertion into the connector 4 and does not rattle after being inserted. It is formed larger than the shape.

The connector 4 is a part attached to the vertical frame 2, as shown in FIG. The connector 4 is detachable with respect to the vertical frame 2 at the base end 4A. For this reason, for example, compared to a configuration in which branches for attaching the horizontal frame 3 are fixed to the vertical frame 2 by welding or the like, when the horizontal frame 3 is not attached, articles and human hands are more difficult. It is possible to eliminate protruding parts that may be caught, and it is also aesthetically pleasing because unnecessary protrusions do not appear. In addition, since the thickness of the vertical frame 2 as a whole can be reduced by the amount corresponding to the absence of the branches, the vertical frame 2 can be made flat, and the loading efficiency when transported by truck or the like is improved. In addition, 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 can be processed instead, so that the manufacturing cost of the vertical frame 2 can be reduced.

The coupling 4 is engaged with the vertical frame 2 by hooking the base end 4A of the coupling 4 to the hole 23 of the vertical frame 2, as shown in FIG. By engaging the connector 4 with the vertical frame 2, the connector 4 can be temporarily fixed. Here, the term “temporary fixation” means that the operator can maintain the state of being hooked on the vertical frame 2 even if the operator releases the connector 4 and the vertical frame 2 can be easily fixed by the operator holding the connector 4 . It can be removed from the Since the connecting member 4 can be temporarily fixed, compared to a configuration in which an engaging portion for 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 connector 4 and the horizontal frame 3 using a countersunk screw 5 which is a fixture to be described later, the connector 4 is fixed so as not to come off from the vertical frame 2 . The connector 4 is attached to the holding portion of the vertical frame 2 prior to attachment of the connector 4 to the horizontal frame 3, as shown in FIG. One end 31 of the horizontal frame 3 is inserted into the connector 4 in the axial direction (the arrow direction shown in FIG. 4) to support the horizontal frame 3 .

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

The body portion 41 has two parallel side plate portions 411 and one bottom plate portion 412 that connects the lower edges of the side plate portions 411, and is perpendicular to the axis extending in the longitudinal direction of the connector 4. The cross-sectional shape is a sideways "U" shape. When arranged on the vertical frame 2, as shown in FIG. 4, the upper portion of the main body portion 41 is opened. As shown in FIG. 5, the first countersunk hole 45 penetrates through the bottom plate portion 412 in the thickness direction. A curved slope 451 of the first countersunk hole 45 is formed downward. Here, a fixture is used to fix the lateral 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 a screw fixing portion 44 attached to the body portion 41 .

The claw portion 42 is a portion that is engaged by being inserted into the hole portion 23 of the vertical frame 2 . The claw portions 42 hold the vertical frame 2 and the connector 4 in a crossed state. In this embodiment, as shown in FIG. 4, the axis of the vertical rod portion 21 of the vertical frame 2 and the axis of the body portion 41 of the connector 4 are held perpendicular to each other. When the horizontal frame 3 is inclined with respect to the vertical frame 2, the axis of the vertical rod portion 21 of the vertical frame 2 and the axis of the body portion 41 of 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 in a state where the insertion portion 421 is inserted into the vertical frame 2 and the insertion portion 421 is inserted into the vertical frame 2 as shown in FIG. Thus, it has a frame abutting portion 422 that holds the angle of the connector 4 with respect to the vertical frame 2 . The frame contact portion 422 is positioned below the insertion portion 421 .

The insertion portion 421 of the claw portion 42 is formed upward at the base end portion 4A of the connector 4 . Therefore, when inserting the insertion portion 421 into the hole 23 of the vertical frame 2, the vertical state shown in FIG. The connector 4 is attached to the vertical frame 2 so as to be rotated (rotated clockwise in the drawing). A portion of the insertion portion 421 contacts the inner surface of the vertical frame 2 , and the frame contact portion 422 contacts the outer surface of the vertical frame 2 . This is the temporarily fixed state, and the attached state of the coupler 4 is maintained. Since temporary fixation can be performed by inserting the insertion portion 421 into the hole 23, the attachment work (work for temporary fixation) of the coupler 4 can be performed with one hand. Therefore, the worker's actions are less likely to be restricted, and workability is good. Although it is not clear in the drawing, one of the two rows of the lower side 4211 of the insertion portion 421 of the claw portion 42 and the other row are formed higher (slightly higher). . With such a height relationship, the lower edge 4211 of one row of the insertion portions 421 out of the two rows reliably contacts the inner peripheral lower edge of the hole portion 23 (see FIG. 7). Incidentally, the bottom edge 4211 of the other row of insertion portions 421 is in a state of slightly floating with respect to the inner peripheral bottom edge of the hole portion 23 . Therefore, in the temporarily fixed state, the engagement state of the insertion portion 421 with respect to the vertical frame 2 is stabilized. As the countersunk screw 5 is screwed into the connector 4, the connector 4 is firmly fixed to the vertical frame 2. Therefore, the lower side 4211 is in contact with only one row at the stage of temporary fixing. That's perfectly fine.

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

As described above, the connector 4 is attached to the vertical frame 2 so as to be rotated from the vertical state to the horizontal state. When the connector 4 is inserted obliquely into the vertical frame 2 in this manner, 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. In addition, since it is sufficient to move the connector 4 so as to lay it down, it is easy to attach the connector 4 to the vertical frame 2 .

Further, the tip protruding portion 43 extends from one of the two side plate portions 411 of the body portion 41 (in this embodiment, the one on the right side as viewed from the tip side in the state shown in FIG. 2) to the tip side. are provided. In other words, the tip projecting portion 43 is a portion obtained by extending a portion of the main body portion 41 toward the tip side. Here, it is attempted to insert the pipe-shaped horizontal frame 3 into the end portion of the main body portion 41 having an outer dimension slightly smaller than the inner dimension of the horizontal frame 3 and having a cross-sectional shape of "U". As a result, the lateral frame 3 hits a portion of the end of the main body 41, causing it to be caught, making it difficult to insert. On the other hand, if the tip protrusion 43 is provided, the tip protrusion 43 having an outer dimension sufficiently smaller than the inner dimension of the horizontal frame 3 (in this embodiment, the width dimension is sufficiently smaller) is first Since it is only necessary to insert the horizontal frame 3, the catching between the main body 41 and the horizontal frame 3 can be reduced, and the insertion can be performed smoothly.

Furthermore, the coupler 4 has a guiding slope 47 on the tip side. In the present embodiment, as shown in FIG. 2, a guiding slope 47, which is a slope that descends toward the tip, is formed at the upper end of the tip projecting portion 43. As shown in FIG. As the horizontal frame 3 is inserted into the connector 4 , the pipe-shaped inner surface (specifically, the upper inner surface) of the horizontal frame 3 comes into contact with the guide slope 47 , so that the horizontal frame 3 is placed on the guide slope 47 . It rises accordingly and guides it so as to cover the connector 4 . For this reason, in addition to the ease of insertion due to the tip projection 43 described above, the presence of the guiding slope 47 further guides the horizontal frame 3 by the connector 4 as the horizontal frame 3 is inserted. It is easy to attach the horizontal frame 3.

The screw fixing portion 44 is attached to the side plate portion 411 of the connector 4 by fitting. The screw fixing portion 44 holds the hexagonal nut 6 arranged on the bottom plate of the connector 4 against movement and rotation with respect to the connector 4 . A countersunk screw 5 as a fixture is screwed into the hexagonal nut 6 . The screw fixing portion 44 is not limited to this embodiment, and may be of various forms. For example, it can be formed integrally with the body portion 41 of the connector 4 .

Next, the interaction between the connector 4 and the horizontal frame 3 will be explained. The connector 4 or the lateral frame 3 has a pulling slope. In this embodiment, as shown in FIGS. 8 and 9, both the connector 4 and the horizontal frame 3 have drawing slopes. This drawing slope converts the force for attaching the fixture to the connector 4 into a force for pulling out the connector 4 from the vertical frame 2 . As a specific structure for force conversion, the coupling 4 has a threaded portion (hex nut 6 held in a screw fixing portion 44 in this embodiment) and a first countersunk hole 45 concentric with the threaded portion. are doing. Correspondingly, the transverse frame 3 has a second countersunk hole 32 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 drawing slope corresponds to a part of each of the countersunk holes, that is, the portions of the curved slopes 321 and 451 of each of the countersinks. A countersunk screw 5 as a fixture passes through the first countersunk hole 45 and the second countersunk hole 32 and is screwed into the threaded 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. The first countersink hole 45 and the second countersunk hole 32 are formed so as to be shifted closer to the vertical frame 2 than the center of the hole 32 (FIG. 8 exaggerates the shift). Therefore, as the countersunk screw 5 is screwed into the connector 4 , the inclined surface 51 of the head of the countersunk screw 5 is pressed against the respective countersunk holes 32 and 45 . Due to 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 countersink hole 45 and the second countersink hole 32 are concentric. Along with this pulling out, there is no play between the claw portion 42 (specifically, the upper contact surface 4212 and the lower contact surface 4213) of the connecting member 4 and the inner surface of the vertical frame 2, so that they are in close contact (pressure contact). become. That is, by attaching the fixture (countersunk screw 5 ), a force is generated to pull out the connector 4 from the vertical frame 2 , and the claw portion 42 of the connecting portion comes into close contact with the vertical frame 2 . Thereby, the vertical frame 2 and the horizontal frame 3 are reliably and firmly fixed. Further, in this embodiment, the structure is simple because the connecting member 4 can be pulled out from the vertical frame 2 by combining the countersunk holes 32, 45 and the countersunk screw 5, which are general mechanical elements.

According to the rack 1 of this embodiment configured as described above, the horizontal frame 3 can be provided or not 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 (the vertical rod portion 21 and the horizontal rod portion 22) and the horizontal frame 3 can be set flexibly. 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 omitted without providing the third frame from the top. Therefore, the frame-shaped portion between the second and fourth lines from the top has a space S that is wider in the vertical direction than the other frame-shaped portions. Therefore, it is possible to incorporate accessories of various shapes, such as storage boxes, into the frame-shaped portion that is set with a degree of freedom.

For example, a plate-like member can be attached to the frame-like portion of the rack 1 of the present embodiment, and used as a shelf plate, a rear plate, a side plate, a partition plate, or the like. Further, for example, a box-shaped member can be attached to the container, and the container can be used as a storage box or the like. The storage box can be open at the front (the state shown in the second and third stages from the top of FIG. 1), open at the front and back, and have a door. Further, by branching a horizontal bar from the horizontal frame 3 or by using the horizontal frame 3 having hooks formed thereon, it is possible to hang clothes hangers. Also, by attaching the horizontal frame 3 only to the upper part of the two vertical frames 2, that part can be used as a gate. For example, a biophilic design (a design that makes the viewer feel nature, such as a greening design) can be applied to this portion. 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 intervals between the vertical frames 2 arranged side by side.

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

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

Although the present invention has been described above with reference to the embodiments, this description is merely an example. The rack according to the present invention is not limited to the above embodiments, and various modifications are possible without departing from the gist of the present invention.

For example, although the vertical frame 2 is integrally formed in the above-described embodiment, it can also be constructed by combining a plurality of rod-shaped bodies with short vertical rod portions 21 . Further, as in the horizontal frame 3 of the above-described embodiment, the horizontal rod portion 22 can be connected to the vertical rod portion 21 .

Moreover, the vertical frame 2 and the horizontal frame 3 are not limited to being entirely made of metal as in the above-described embodiment, and may be configured by appropriately combining wood, resin, and metal, for example. By doing so, the vertical frame 2 and the horizontal frame 3 can be accentuated in appearance.

Further, as a configuration having the same effect as the tip projecting portion 43, the tip portion of the main body portion 41 of the connector 4 may be narrowed, or a separate part may be attached to the tip of the main body portion 41 to give a narrowed shape. can also Further, in the above-described embodiment, the tip projecting portion 43 is provided by extending 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 may be extended toward the distal end side.

Also, the curved slopes 451 and 321 of the first countersink hole 45 and the second countersink hole 32 correspond to the drawing slopes of the above-described embodiment. However, the present invention is not limited to this, and the pull-up slope may be formed in a flat shape, for example, a wedge-shaped fixture may be used, and various forms are possible.

1 Rack 2 Vertical Frame 23 Holding Portion, Hole 3 Horizontal Frame 31 One End of Horizontal Frame 32 Second Countersunk Hole 321 Pull Slope, Curved Slope of Second Countersunk Hole 4 Connector 4A Base End of Connector 42 Claw 45 Second 1 countersunk hole 451 drawing slope, curved slope of first countersunk hole 46 relief slope 47 guide slope 5 fixture, countersunk screw 61 screw part, hexagonal nut

Claims (7)

A vertical frame, a pipe-shaped horizontal frame with at least one open end, a connector attached to the vertical frame, and a fixture for fixing the horizontal frame to the connector,
The vertical frame has a holding portion that holds the connector,
The connector has a base end portion that is detachable from the vertical frame, and supports the horizontal frame by inserting the one end of the horizontal frame. The connector protrudes from the vertical frame. The whole of the portion that was cut is located inside the horizontal frame,
The fixing device fixes the horizontal frame to the connecting device by being screwed into a screw fixing portion of the connecting device,
The fixing device and the screw fixing part are racks that do not protrude from the horizontal frame when the horizontal frame is fixed to the connecting device. The holding portion is a hole formed in the vertical frame,
2. The rack according to claim 1, wherein said connector has a claw portion at said base end that engages with said hole so that said vertical frame and said connector are held in a crossed state. the horizontal frame and the connector have a pulling slope,
3. The rack according to claim 1, wherein a force for attaching said fixture to said connector is converted into a force for pulling out said connector from said vertical frame by said horizontal frame and said pulling slope of said connector. . the connector has a threaded portion and a first countersink concentric with the threaded portion;
The horizontal frame has a second countersunk hole having an inclined surface with the same inclination as the first countersunk hole,
The fixture is a countersunk screw that is screwed into the threaded portion through the first countersunk hole and the second countersunk hole,
In a state in which the connector is attached to the vertical frame and the horizontal frame is inserted into the connector, the center of the first countersunk hole in the connector is positioned further than the center of the second countersunk hole in the horizontal frame. 4. A rack according to claim 3, offset towards the longitudinal frame. The connector has a guiding slope on the tip side,
According to any one of claims 1 to 4, the guide slope guides the horizontal frame to cover the connector by coming into contact with the inner surface of the horizontal frame as the horizontal frame is inserted into the connector. A rack as described in any of the above. 6. The connector according to any one of claims 1 to 5, wherein a claw portion is formed at the base end portion facing upward, and a relief slope is provided at a position away from the claw portion toward the tip side, the relief slope being low on the base end side and high on the tip side. A rack as described in any of the above. 1 to 4, wherein the connector has a claw portion formed upward at the base end portion, and is attached to the vertical frame so as to be rotated from a vertical state to a horizontal state. 6. A rack according to any one of 5.

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