JP2001286351A - Structure for connecting rack column and beam material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent protrusions for fastening from accidentally coming of from engaging holes with and to reduce the number of holes to be formed in columns in a structure for connecting columns and beams which constitute a rack. SOLUTION: The engaging holes 3 are formed in the column 2, members 18 for connection are provided for the end part of the beam 4, and the protrusions 21 for fastening freely inserted in and removed from the engaging holes 13 by forward and backward movements are provided for the members 18 for connection. Restricting surfaces 14a directed to the side opposite to the direction of removal in which the protrusions 21 for fastening are removed from the engaging holes 13 are vertically formed in the column 2. Coming-off preventing pins 31 to restrict the movement of the members 18 for connection in the direction of removal are inserted in through holes formed in the members 18 for connection. The tip parts of the coming-of preventing pins 31 are capable of coming into contact with the restricting surfaces 14a from the side of the direction of the removal.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connecting structure between a vertical column and a horizontal beam constituting a shelf.

[0002]

2. Description of the Related Art Conventionally, a connection structure between a vertical column and a horizontal beam constituting a shelf is shown in FIG. 16, for example. That is, a square pipe-shaped support 6
A pair of left and right insertion holes 62 are formed in a plurality of upper and lower portions on the front surface of the device 1. Further, connecting members 63 are provided at both ends of the beam member 60.
Is provided. The connecting member 63 is formed in an angle by a front plate portion 64 that can abut on the front surface of the column 61 and a side plate portion 65 that can abut on a side surface facing the frontage of the column 61 in the frontage direction. At the outer edge of the front plate portion 64, an insertion piece 66 which can be inserted into and removed from the insertion hole 62 is provided.
Are provided. The insertion pieces 66 are formed in a downward hook shape, and protrude toward the support column 61 at right angles to the longitudinal direction of the beam member 60.

[0003] By moving the connecting member 63 from the near side of the column 61 to the back, inserting each insertion piece 66 into the insertion hole 62, and lowering the connecting member 63, each insertion piece 66 is attached to the column 61. Engaging, so that the connecting member 63
Are connected to the support 61.

Further, a retaining pin 67 is provided for preventing the insertion piece 66 from being accidentally removed from the insertion hole 62. That is, the pin holes 6 are formed on the front surface of the support 61 and the front plate portion 64 of the connecting member 63, respectively.
8 and 69 are formed. By inserting the retaining pin 67 into the pin holes 68 and 69, the connecting member 6 is formed.
3 is restricted by the retaining pin 67. Accordingly, the insertion piece 66 inserted into the insertion hole 6 does not move upward, and therefore, it is possible to prevent the insertion piece 66 from accidentally falling out of the insertion hole 6.

[0005]

However, in the above-mentioned conventional type, the connecting member 63 is provided by the retaining pin 67.
, It is necessary to form a large number of pin holes 68 on the front surface of the column 61 in addition to the insertion hole 62, and the strength of the column 61 decreases due to the formation of the pin hole 68. Problem.

According to the present invention, it is possible to prevent the locking projection (insertion piece) from being accidentally removed from the engaged hole (insertion hole) and to reduce the number of holes formed in the support. It is an object of the present invention to provide a connection structure between a pillar of a shelf and a beam material.

[0007]

According to a first aspect of the present invention, there is provided a connecting structure of a vertical column and a horizontal beam member constituting a shelf, wherein the first column is engaged with the column. A hole is formed, a connection member is provided at an end of the beam material,
The connecting member is provided with a locking projection that can be inserted into and removed from the engaged hole by moving in the horizontal direction, and the locking projection is detached from the engaged hole on the post. A regulating surface facing the opposite side to the removal direction is formed over the vertical direction, a through hole is formed in the connection member, and a retaining member that regulates movement of the connection member in the removal direction is provided. The distal end portion of the retaining member is inserted into the through hole, and is configured to be able to abut against the regulating surface from the removal direction side.

According to this, when the beam is connected to the column, the locking projection of the connecting member is inserted into the engaged hole of the column to engage with the column, and the retaining member is inserted through the through hole. Thereby, the connecting member is connected to the support.

In this state, if the connecting member attempts to move in the removal direction, the distal end of the retaining member comes into contact with the regulating surface from the removal direction side. Movement to is blocked. Thus, the locking projection can be prevented from being inadvertently pulled out of the engaged hole, so that the trouble that the beam material comes off from the support without permission can be prevented.

In the above-described connection structure, since the movement of the connection member in the horizontal direction (that is, the removal direction) is restricted by the retaining member, the engaging hole and the restriction surface are formed in the support. It is not necessary to form a pin hole separately from the engaged hole in the column as in the related art. Therefore, the number of holes formed in the support can be reduced, and the strength of the support can be ensured.

In the second aspect of the present invention, the locking projection is formed in a downward hook shape, and the connecting member is lowered in a state where the locking projection is inserted into the engaged hole. Is engaged with the column, and by raising the coupling member, the engagement of the locking projection with the column is released, and in the through hole, with the elevation of the coupling member, An inclined guide hole is formed to guide the retaining member in a direction in which it comes into contact with the regulating surface.

According to this, when the beam is connected to the column, the locking projection of the connecting member is inserted into the engaged hole of the column, and the connecting member is lowered, so that the locking projection is connected to the column. To be engaged. Then, the connecting member is connected to the column by inserting the retaining member through the through hole.

In this state, if the connecting member attempts to move upward, the retaining member is guided by the inclined guide hole in the direction in which it comes into contact with the regulating surface. , Thereby preventing the upward movement of the connecting member. Therefore, even when a lifting force is applied to the beam member, it is possible to prevent a problem that the connecting member is inadvertently lifted and the engagement of the locking projection with the support is released without permission. Yes, safety is improved.

According to a third aspect of the present invention, the engaging hole is formed on the front side of the column, and an inwardly concave portion is formed on the side facing the frontage of the column in the vertical direction. Is composed of a front plate portion facing the front surface of the support, and a side plate portion contacting the side surface of the support, and the locking projections
It is configured to be inserted into the engaged hole by moving from the near side to the back side, and to be disengaged from the engaged hole by moving from the back side to the near side. Inserted through the through hole formed in the side plate portion from the frontage direction, regulates the movement of the connecting member to the near side, the tip of the retaining member is inserted into the concave portion, the inside of the concave portion It is configured to be able to abut against a regulating surface formed on the near side.

According to this, when the beam is connected to the column, the locking projection of the connecting member is inserted into the engaged hole of the column to engage with the column, and the retaining member is inserted through the through hole. hand,
Insert the tip of the retaining member into the recess. Thereby, the connecting member is connected to the support.

In this state, if the connecting member attempts to move to the near side, the tip of the retaining member comes into contact with the regulating surface in the recess, so that the moving of the connecting member to the near side is prevented. You. Thus, the locking projection can be prevented from being inadvertently pulled out of the engaged hole, so that the trouble that the beam material comes off from the support without permission can be prevented.

In the above-described connecting structure, since the back-and-forth movement of the connecting member is regulated by the retaining member,
It is sufficient to form the engaged hole and the recessed portion in the column, and it is not necessary to form a pin hole separately from the engaged hole in the column as in the related art.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. As shown in FIG. 11, reference numeral 1 denotes a frame shelf, and a plurality of up-down columns 2 arranged in the front-rear direction (depth direction) and the left-right direction (frontage direction), respectively, and connected between these columns 2. Lattice 3, a horizontal beam 4 (an example of a beam material) connected between the left and right of the column 2, a sub-beam 5 disposed between the front and rear beams 4, and a lower end of each column 2. And the leg member 6 provided at the end.

As shown in FIG. 2, the support column 2 comprises a front side outer plate member 10 and a pair of left and right side plate members 11a, 1
1b form a U-shape in plan view. At the center of the outer plate member 10 in the width direction, an indented portion 12 which is depressed inward is formed in the vertical direction. As shown in FIGS. 2 and 3, a plurality of engaged holes 13 are formed at predetermined intervals in the vertical direction in the inner bottom of the recess 12. Further, a recessed portion 14 which is recessed inward is formed in the depth of the pair of side plate members 11a and 11b in the vertical direction. A regulating surface 14a facing the back side is formed on the near side in the concave portion 14 in the up-down direction.
In addition, the column 2 has one fitting portion 15a formed by the outer plate member 10 and the side plate member 11a located on one side of the left and right from the recess 12 and the other side of the left and right from the recess 12. , The other fitting portion 15b is formed by the outer plate member 10 and the side plate member 11b.

As shown in FIGS. 2 to 4, connecting members 18 are provided at both ends of the beam 4. The connecting members 18 include a pair of side plate portions 19a and 19b opposed to each other in the left-right direction (frontage direction), and the pair of side plate portions 1.
The front plate 20 is provided between the front ends 9a and 19b, and is formed in a U-shape in plan view.

As shown in FIG. 5, a plurality of downward hook-like locking projections 21 are provided at predetermined intervals in the vertical direction at the tip of the outer side plate portion 19a among the side plate portions 19a and 19b, as shown in FIG. 5, five upper and lower parts). As shown in FIG. 7, these locking projections 21 are provided on the outer side plate 19.
a, and a proximal end 22 projecting laterally from
From the front side, and is inserted into the engaged hole 13 by horizontal movement from the near side to the back side, and is inserted into the engaged hole 13 by the horizontal movement from the back side to the near side.
It is constituted so that it may escape from.

Further, the locking projection 21 is connected to the engaged hole 13.
By lowering the connecting member 18,
The lower edge portion of the engaged hole 13 is configured to be inserted and engaged between the outer side plate portion 19a and the distal end portion 23 of the locking projection 21. By being raised, the lower edge portion of the engaged hole 13 is pulled out from between the outer side plate portion 19a and the distal end portion 23 of the locking projection 21 to release the engagement. I have. Further, a guide surface 24 for guiding the connecting member 18 in the depth direction A (insertion direction) with respect to the column 2 when the connecting member 18 is lowered is provided at the distal end portion 23 of the locking projection 21. Is formed.

As shown in FIG. 2, the outer side plate 19
On the inner surface of a, an inclined surface 25 is formed so as to be inclined toward the inner side plate portion 19b toward the near side (the direction of removal). The inclined surface 25 of the outer side plate portion 19a
Between the inner side plate portion 19b and the inner surface of the inner side plate portion 19b is a minimum distance Wmin on the near side and a maximum distance Wmax on the far side.

The fitting portions 15a and 15b formed on the column 2 are respectively provided with the pair of side plate portions 19a and 19a.
It is configured to be able to be inserted and removed from the near side between the 19b. When the width dimension of each of the fitting portions 15a and 15b (that is, the dimension from one side plate member 11a to the concave portion 12 or the dimension from the other side plate member 11b to the concave portion 12) is W, the minimum distance It is set so that Wmin <width dimension W <maximum interval Wmax.

As shown in FIGS. 5 and 6, a through hole 28 is formed below the inner side plate 19b. The through-hole 28 is composed of an upper hole 29 and an inclined guide hole 30 which is provided continuously from the lower part of the upper hole 29 so as to be inclined downward toward the near side. Upper hole 2
9 is formed in a square shape, and the width of the upper hole portion 29 is D
Assuming that the width of the inclined guide hole 30 is E, D> E is set.

As shown in FIG. 1, the through hole 28
A retaining pin 31 (an example of a retaining member) for restricting the movement of the connecting member 18 in the front direction (removing direction) is inserted so as to be detachable along the frontage direction (left-right direction). The tip of the retaining pin 31 is inserted into the recess 14 of the column 2, and is configured to be able to abut against the regulating surface 14 a in the recess 14 from the back (in the removal direction). FIG.
As shown in FIG. 9, the retaining pin 31 includes a round bar-shaped pin main body 32, a head 33 provided at one end of the pin main body 32, and a square expansion provided at the other end of the pin main body 32. And a diameter portion 34.

The width F of the enlarged diameter portion 34 is the same as that of the pin body 32.
, And the enlarged diameter portion 34 is configured to be insertable into and removable from the upper hole portion 29. Further, the pin main body 32 is configured to be able to be inserted into and removed from the inclined guide hole 30, and the width F of the enlarged diameter portion 34 (see FIG. 9).
Is larger than the width E (see FIG. 6) of the inclined guide hole 30 (F> E). As a result, as shown in FIG. 8, when the pin body 32 of the retaining pin 31 is inserted through the inclined guide hole 30, the enlarged diameter portion 34 is inserted into the recess 14 and the inclined guide hole 30 is inserted. Never escape from

The operation of the above configuration will be described below.
When connecting the beam 4 to the support 2, as shown by a solid line in FIG. 1, the connecting member 18 is moved from the near side to the back,
One of the fitting portions 15a of the support column 2 is inserted between the pair of side plate portions 19a and 19b of the connection member 18, and as shown by the solid line in FIG. Into the engaged hole 13. When the beam 4 is pushed down, the connecting member 18 descends, and the engaged hole 13
The lower edge portion is inserted between the outer side plate portion 19a and the distal end portion 23 of the locking projection 21 to engage therewith.

At this time, since the guide surface 24 guides the connecting member 18 in the depth direction A with respect to the column 2, the connecting member 18 is drawn in the depth direction A with respect to the column 2 as shown in FIG. The front plate 20 of the connecting member 18 faces the front surface of the support 2 and the fitting portion 15a of the support 2
Is firmly sandwiched between the inclined surface 25 of the outer side plate portion 19a of the connecting member 18 and the inner surface of the inner side plate portion 19b. At this time, the connecting member 18 is guided by the inclined surface 25 and is drawn in the frontage direction B with respect to the support column 2 with the drawing operation in the depth direction A as described above. As a result, the inner surface of the side plate portion 19b inside the connecting member 18 comes into pressure contact with the outer surface of the support column 2, whereby the connecting member 18
Is connected to the column 2 in a state where the column 2 is embraced by the pair of side plate portions 19a and 19b and the front plate portion 20 so as to surround the fitting portion 15a.

Then, as shown in FIG. 6, the enlarged diameter portion 34 of the retaining pin 31 is inserted into the upper hole 29 of the through hole 28 and inserted into the recess 14 of the column 2 as shown in FIG. ,
The retaining pin 31 is lowered, and the pin body 32 is inserted from the upper hole 29 into the inclined guide hole 30. Thereby, as shown in FIG. 1 and FIG.
The retaining pin 31 descends until it comes into contact with the regulating surface 14a.

In this state, if the connecting member 18 is to be moved to the near side, the enlarged diameter portion 34 is in contact with the regulating surface 14a of the recessed portion 14, so that the connecting member 18 is to be moved to the near side (removal). Movement to the pulling-out side) is prevented. Therefore,
As shown in FIG. 1, even when a force G is applied to the beam 4 toward the near side, the locking projection 21 is inadvertently moved to the engaged hole 13.
Since it is possible to prevent the beam 4 from being detached from the support 2, it is possible to prevent a trouble that the beam 4 comes off the support 2 without permission. Since the width F of the enlarged diameter portion 34 is larger than the width E of the inclined guide hole 30, it is possible to prevent the retaining pin 31 from accidentally dropping out of the inclined guide hole 30.

In the connection structure as described above, since the back-and-forth movement of the connection member 18 is restricted by the retaining pin 31, the engaged hole 13 and the recessed portion 14 may be formed in the support column 2. It is not necessary to form a pin hole separately from the engaged hole as in the above. Therefore, the number of holes formed in the column 2 can be reduced, and the strength of the column 2 can be secured.

Further, as shown in FIG.
When the connecting member 18 attempts to move upward (A) in a state where the connecting member 8 is connected to the column 2, the retaining pin 31 is guided toward the front (B) by the inclined guide hole 30.
As a result, the enlarged diameter portion 34 of the retaining pin 31 is
Since the pressing member 14 is pressed by the fourth regulating surface 14a, the upward movement (a) of the connecting member 18 is prevented. Therefore, even when a lifting force is applied to the beam 4, the connecting member 18 is inadvertently raised, and the lower edge of the engaged hole 13 is formed between the outer side plate portion 19 a and the locking projection 21. It is possible to prevent troubles such as being detached from the space between the distal end portion 23 (that is, the engagement of the locking projection 21 with the support column 2 being released without permission), and safety is improved.

As shown in FIG. 5, the vertical load applied to the beam 4 is dispersed and supported by the plurality of locking projections 21, so that a large load can be supported without difficulty. Further, as shown by the solid line in FIG.
Is fitted into the fitting portion 15a, a pair of side plate portions 19a,
19b and the front plate portion 20 embrace the support column 2 so as to surround the fitting portion 15a, so that the strength against the bending moment in the horizontal direction is high.

Further, since the engaged hole 13 is formed at the center of the column 2 in the width direction, the engaged hole 13 is formed at the end of the column 2 in the width direction. Is secured.

In the above description, the connecting member 18 is externally fitted to one of the fitting portions 15a of the column 2 as shown by the solid line in FIG. 1, but as shown by the imaginary line in FIG. The same procedure may be performed when the member for use 18 is externally fitted to the other fitting portion 15b.

In the above embodiment, as shown in FIG.
Although five locking projections 21 are provided at the top and bottom, the number is not limited to five and may be four or less or six or more.

In the first embodiment, as shown in FIG. 8, the retaining pin 31 is composed of the pin body 32, the head 33, and the enlarged diameter portion 34, but in the second embodiment, as shown in FIG. As an alternative, a retaining pin 41 as shown in FIG. 12 may be used. That is, the retaining pin 41 includes a round bar-shaped pin main body 42 and a head 43 provided at one end of the pin main body 42. The pin body 42 is formed in an L shape by a horizontal bar portion 42a and a vertical bar portion 42b.

According to this, as shown in FIG. 13, the pin body 42 of the retaining pin 41 is connected to the upper hole 2 of the through hole 28.
9, the retaining pin 41 is lowered, and the pin body 32 is inserted from the upper hole 29 into the inclined guide hole 30.
As a result, the horizontal bar portion 42a is fixed to the regulating surface 1 of the hollow portion 14.
The retaining pin 41 descends until it comes into contact with 4a.

In this state, if the connecting member 18 attempts to move to the near side, the horizontal bar portion 42a is in contact with the regulating surface 14a of the recessed portion 14, so that the connecting member 18 is at the near side (removing position). Movement to the pulling-out side) is prevented. Therefore, as shown in FIG. 1, even when a force G directed to the near side acts on the beam 4, the locking projection 21 can be prevented from being accidentally removed from the engaged hole 13. It is possible to prevent a trouble that the beam 4 comes off the support 2 without permission. Note that, as shown in FIG. 13, since the vertical bar portion 42b is hung, the retaining pin 41 is
It is possible to prevent accidental dropping from zero.

When the connecting member 18 is to be moved upward (a) in a state where the connecting member 18 is connected to the column 2, the retaining pin 41 is moved forward (b) by the inclined guide hole 30. I will be guided. As a result, the horizontal bar portion 42a of the retaining pin 31 is pressed by the regulating surface 14a of the recess portion 14, so that the upward movement (a) of the connecting member 18 is prevented. Therefore, even when a lifting force is applied to the beam 4, the connecting member 18 is inadvertently raised, and the lower edge of the engaged hole 13 is formed between the outer side plate portion 19 a and the locking projection 21. It is possible to prevent troubles such as being detached from the space between the distal end portion 23 (that is, the engagement of the locking projection 21 with the support column 2 being released without permission), and safety is improved.

In the first embodiment, as shown in FIG. 1, the engaged hole 13 is formed at one position in the center of the column 2 in the width direction, and is externally fitted to one of the fitting portions 15a. The locking projections 21 of the connecting member 18 and the locking projections 21 of the connecting member 18 fitted externally to the other fitting portion 15b are inserted into the common engaged hole 13. On the other hand, as a third embodiment, as shown in FIG. 14, the engagement holes 13a,
13b may be formed.

According to this, the locking projection 21 of the connecting member 18 which is fitted externally to the fitting portion 15a is inserted into the engaged hole 13a and fitted externally to the other fitting portion 15b. The engaging projection 21 of the connecting member 18 is
b.

In each of the first to third embodiments, the beam 4 is connected between the pair of right and left columns 2.
As a fourth embodiment, as shown in FIG. 15, a configuration in which a beam 4 is connected to a plurality of columns 2 in a cantilever manner may be employed. In this case, the connecting member 18 is provided at one end of the beam 4, and the load 45 is supported between the plurality of beams 4.

[0045]

As described above, according to the first aspect of the present invention, since the movement of the connecting member in the horizontal direction (that is, the direction of removal) is restricted by the retaining member, the engaging hole is restricted by the support post. It is only necessary to form a pin hole separately from the engaged hole in the column as in the related art. Therefore, the number of holes formed in the support can be reduced, and the strength of the support can be ensured.

According to the second aspect of the present invention, even when a lifting force acts on the beam, the connecting member is inadvertently raised, and the engagement of the locking projection with the support is released without permission. Can be prevented, and safety is improved.

According to the third aspect of the present invention, since the back-and-forth movement of the connecting member is regulated by the retaining member, the engaging hole and the recessed portion may be formed in the support, and the support may be formed on the support as in the prior art. It is not necessary to form a pin hole separately from the engagement hole. Therefore, the number of holes formed in the support can be reduced, and the strength of the support can be ensured.

[Brief description of the drawings]

FIG. 1 is a plan view showing a connection structure between a column and a beam according to a first embodiment of the present invention.

FIG. 2 is a plan view of a connection structure between a support and a beam, showing a state where a connection member is removed from the support.

FIG. 3 is a front view of the beam connected to the column.

FIG. 4 is a plan view of the same beam.

FIG. 5 is a view taken in the direction of arrows XX in FIG. 4;

FIG. 6 is an enlarged view of a through hole formed in the connecting member.

FIG. 7 is an enlarged view of a locking member formed on the connecting member.

FIG. 8 is a side view of the retaining pin inserted into the through hole of the connecting member.

9 is a view as viewed in the direction of arrows XX in FIG.

FIG. 10 is a partially cutaway side view of the lower portion of the connecting member.

FIG. 11 is a perspective view of the same shelf.

FIG. 12 is a side view of a retaining pin used for connecting a column and a beam according to a second embodiment of the present invention.

FIG. 13 is a partially cutaway side view of the lower portion of the connecting member.

FIG. 14 is a plan view showing a connection structure between a column and a beam according to a third embodiment of the present invention.

FIG. 15 is a plan view showing a connection structure between a column and a beam according to a fourth embodiment of the present invention.

FIG. 16 is an exploded perspective view showing a conventional connection structure between a column and a beam.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 shelf 2 support | pillar 4 beam (beam material) 13, 13a, 13b Engagement hole 14 Depressed part 14a Regulation surface 18 Connecting member 19b Side plate part 20 Front plate part 21 Locking projection 28 Through hole 30 Incline guide hole part 31 Retainer pin (retainer) 41 Retainer pin (retainer)

 ────────────────────────────────────────────────── ─── Continued on the front page F term (reference) 2E125 AA03 AA13 AB05 AB10 AB16 AC17 AG02 AG03 AG04 AG12 AG23 AG25 AG41 AG43 AG52 AG56 AG57 BB08 BB28 BC06 BD01 BE02 BE08 BF01 CA78 CA91 EA01 EA03 EA33 3B054 AA01 BA03 BA09 BA13 BB09 BB14 BB16 EA03 FA01

Claims (3)

[Claims] 1. A connection structure between a vertical column and a horizontal beam constituting a shelf, wherein the column has an engaged hole, and a connection member is provided at an end of the beam. The connecting member is provided with a locking projection that can be inserted into and removed from the engaged hole by moving in the horizontal direction, and the locking projection is disengaged from the engaged hole on the post. A restriction surface facing the opposite side to the removal direction to be formed is formed in the up-down direction, a through hole is formed in the connecting member, and a stopper for restricting movement of the connection member in the removal direction is formed. A member is inserted into the through-hole, and a tip of the retaining member is configured to be able to abut against the regulating surface from a removal direction side, and a column and a beam member of a shelf. Connection structure. The locking projection is formed in a downward hook shape, and the locking projection is engaged with the support by lowering the connecting member with the locking projection inserted into the engaged hole. In this case, by raising the connecting member, the engagement of the locking projection with the support column is configured to be released, and in the through hole, with the rising of the connecting member,
The connecting structure between a column and a beam of a shelf according to claim 1, wherein an inclined guide hole is formed to guide the retaining member in a direction in which it comes into contact with the regulating surface. 3. The engaged hole is formed on the front side of the column, and an inwardly recessed portion is formed on a side surface facing the frontage direction of the column in the vertical direction. A front plate portion facing the front surface of the support member and a side plate portion abutting on the side surface of the support, and the locking projection is inserted into the engaged hole by moving from the front side to the back. Also, it is configured to be disengaged from the engaged hole by moving from the back to the near side, and the retaining member is inserted through the through hole formed in the side plate portion from the frontage direction, and the connection is performed. Regulating the movement of the member toward this side, the tip of the retaining member is inserted into the recess,
The connecting structure between a column and a beam of a shelf according to claim 1 or 2, wherein the connecting structure is configured to be able to abut against a regulating surface formed on the near side in the recess.