JP3758479B2 - Connecting structure of shelf columns and beams - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a connecting structure of vertical columns and horizontal beams constituting a shelf.
[0002]
[Prior art]
Conventionally, for example, as shown in FIG. 21, there is a connection structure between a vertical column and a horizontal beam member constituting a shelf. That is, a plurality of upper and lower pairs of insertion holes 92 are formed on the front surface of the square pipe-shaped support column 91. Further, connecting members 93 are provided at both ends of the beam member 90. The connecting member 93 is formed in an angle shape by a front plate portion 94 that can be brought into contact with the front surface of the column 91 and a side plate portion 95 that can be brought into contact with a side surface facing in the front-end direction of the column 91. A plurality of insertion pieces 96 that can be inserted into and removed from the insertion hole 92 are provided at the outer edge of the front plate portion 94. These insertion pieces 96 are formed in a downward hook shape and project toward the support column 91 side perpendicular to the longitudinal direction of the beam member 90.
[0003]
By moving the connecting member 93 from the near side of the support column 91 to the back, inserting each insertion piece 96 into the insertion hole 92 and lowering the connection member 93, each insertion piece 96 is engaged with the support column 91. Thus, the connecting member 93 is connected to the support column 91.
[0004]
Further, a retaining pin 97 for preventing the insertion piece 96 from being inadvertently removed from the insertion hole 92 is provided. That is, pins 98 and 99 are respectively formed on the front surface of the support column 91 and the front plate portion 94 of the connecting member 93, and the retaining pin 97 is inserted into the pins 98 and 99, thereby the connecting member 93. Vertical movement is regulated by the retaining pin 97. Thereby, the insertion piece 96 inserted into the insertion hole 92 does not move upward, and therefore, the insertion piece 96 can be prevented from being carelessly removed from the insertion hole 92.
[0005]
[Problems to be solved by the invention]
However, in the above conventional type, since the vertical movement of the connecting member 93 is restricted by the retaining pin 97, it is necessary to form a large number of pin holes 98 on the front surface of the support column 91, in addition to the insertion holes 92. The formation of the pin hole 98 has a problem that the strength of the support column 91 is lowered.
[0006]
The present invention provides a shelf column and a beam member that can prevent the locking projection (insertion piece) from being inadvertently removed from the insertion hole and can reduce the number of holes formed in the column. An object of the present invention is to provide a connecting structure.
[0007]
[Means for Solving the Problems]
  In order to solve the above-described problem, the first invention is a connection structure of a vertical column and a horizontal beam member constituting a shelf,
A plurality of insertion holes are formed in the upper and lower columns,
A connecting member is provided at the end of the beam material,
The connecting member is formed with a locking projection that can be inserted into and removed from the insertion hole.
A retaining member that prevents the locking projection from being detached from the insertion hole is configured to be detachable from the insertion hole,
The above-mentioned retaining member has an insertion part to be inserted into the insertion hole, a protrusion part protruding to the outside of the support column, and a lower notch to be inserted into the lower edge part of the insertion hole,
At the lower end of the protrusion,A detachment restricting portion for restricting movement of the locking protrusion in the detaching direction is formed.,
With the insertion portion inserted into the insertion hole, the retaining member is urged in the insertion direction by its own weight. At this time, the lower edge portion of the insertion hole is inserted into the lower notch, and the upper end of the projection portion Contacts the front of the upper edge of the insertion holeIs.
[0008]
According to this, the beam member is coupled to the support via the coupling member by inserting the locking projection into the insertion hole. Further, by inserting the retaining member into the insertion hole, the movement of the locking projection in the separation direction is regulated by the separation regulating portion of the retaining member. Thereby, it is possible to prevent the locking protrusion from being carelessly detached from the insertion hole. As described above, since the retaining member can be prevented from being inserted into the insertion hole, the retaining hole and the retaining member of the connecting member can share the insertion hole. Thereby, it is not necessary to form the pin hole for prevention separately from the insertion hole in the support | pillar conventionally. Therefore, the number of holes formed in the support can be reduced, and the strength of the support can be ensured.
[0009]
In the second invention, the locking projection is formed in a downward hook shape,
The release direction of the locking protrusion is the upward direction,
The retaining member is inserted into the insertion hole above the insertion hole into which the locking projection is inserted,
The detachment restricting portion faces the upper side of the connecting member.
[0010]
According to this, by inserting the retaining member into the insertion hole above the insertion hole into which the locking projection is inserted, the separation restricting portion of the retaining member faces the upper side of the connecting member. As a result, since the connecting member comes into contact with the separation regulating portion from below, the upward movement of the coupling member is prevented, and thus the upward movement of the locking projection is regulated by the separation regulating portion. .
[0011]
According to the third aspect of the present invention, the detachment restricting portion is formed so as to incline forward and downward. According to this, when the connecting member comes into contact with the detachment restricting portion from below, since the detachment restricting portion is inclined forward and downward, the connecting member comes into contact with the distal end portion of the detachment restricting portion. As a result, the upward movement of the connecting member is surely prevented, and the connecting member is guided by the release restricting portion and does not escape diagonally forward, so that the locking protrusion is reliably released from the insertion hole. Can be prevented.
[0012]
According to the fourth aspect of the present invention, the retaining member is formed with an insertion portion inserted into the insertion hole, an upper notch inserted into the upper edge portion of the insertion hole, and a lower notch inserted into the lower edge portion of the insertion hole. And
When the insertion part is inserted into the insertion hole, the upper edge part of the insertion hole is inserted into the upper notch and the lower edge part of the insertion hole is inserted into the lower notch, so that the insertion part is prevented from coming off,
By moving the retaining member upward and inserting the upper edge of the insertion hole to the lower back of the upper notch and removing the lower edge of the insertion hole from the lower notch, the insertion part is It is configured to be detachable with respect to the insertion hole.
[0013]
According to this, when attaching the retaining member to the support column, first, the upper part of the insertion portion is inserted into the insertion hole, and then the retaining member is moved upward so that the upper edge of the insertion hole is located below the upper notch. Insert it all the way. Thereafter, the lower portion of the insertion portion is inserted into the insertion hole. Then, the retaining member is lowered and the lower edge of the insertion hole is inserted into the lower notch. As a result, the retaining member is inserted into the insertion hole, the upper edge of the insertion hole is inserted into the upper notch, and the lower edge of the insertion hole is inserted into the lower notch. Mounted on.
[0014]
In the fifth aspect of the present invention, a movement restricting portion for restricting upward movement of the retaining member inserted into the insertion hole is formed in the upper notch,
The movement restricting portion is fitted into the upper edge of the insertion hole, and the lower edge portion of the insertion hole is inserted into the lower notch, whereby the retaining member is positioned vertically.
[0015]
According to this, when the retaining member is attached to the column, the movement restricting portion is fitted into the upper edge of the insertion hole and the lower edge portion of the insertion hole is inserted into the lower notch, so that the retaining member is positioned vertically. This restricts the vertical movement of the retaining member.
[0016]
  According to the sixth aspect of the present invention, the movement restricting portion is fitted into the upper edge of the insertion hole when the retaining member moves in the insertion direction, and the upper edge of the insertion hole when the retaining member moves in the removal direction. To leave the clubIt is configuredIs.
[0017]
According to this, even if the retaining member moves in the removal direction due to an impact or the like and the movement restricting portion is detached from the upper edge portion of the insertion hole, immediately after that, the retaining member is urged in the insertion direction by its own weight. Return to the insertion direction. Accordingly, the movement restricting portion is fitted into the upper edge of the insertion hole, and the retaining member is reliably positioned up and down.
[0018]
In the seventh aspect of the invention, the lower notch is formed in an inclined shape that becomes narrower toward the upper part.
According to this, the lower edge portion of the insertion hole is guided by the inclination of the lower notch and surely enters the predetermined position of the upper end portion of the lower notch. Thereby, when the retaining member returns to the insertion direction by its own weight, the position of the lower notch with respect to the lower edge end of the insertion hole is accurately determined.
[0019]
In the eighth aspect of the present invention, a fall-preventing portion for preventing the fall-off member from falling in the insertion direction is formed at the lower end of the insertion portion.
According to this, when a force in the insertion direction is applied to the retaining member inserted into the insertion hole, the retaining member comes into contact with the back surface of the lower edge portion of the insertion hole so that the retaining member is inserted in the insertion direction. Can be prevented from falling down.
[0020]
  In the ninth aspect of the invention, the lower end portion of the insertion portion is rounded.
  According to this, the lower end part of an insertion part can be smoothly inserted in an insertion hole.
  The tenth inventionA protrusion is formed at the upper end of the protrusion,
With the insertion portion inserted into the insertion hole, the retaining member is urged in the insertion direction by the weight of the insertion portion. At this time, the lower edge portion of the insertion hole is inserted into the lower notch, and the protrusion is Abuts the front of the upper edge of the insertion holeIs.
[0021]
  The eleventh aspect of the invention is configured such that beam members can be connected to both sides of the support column,
One retaining member for retaining one beam member and the other retaining member for retaining the other beam member are configured to be detachable with respect to a common insertion hole,
Projections are formed on the upper and lower edges of the insertion hole,
One retaining member is positioned in the width direction between the upper and lower projections and one side edge of the insertion hole,
The other retaining member is positioned in the width direction between the upper and lower projections and the other side edge of the insertion hole.
[0022]
  According to this, when the retaining member is inserted into the insertion hole, the retaining member is prevented from moving in the width direction of the insertion hole by the protrusion, so that one side portion in the width direction of the insertion hole ( Or it is positioned on the other side. Thereby, it can prevent that a securing member shifts | deviates to the width direction of an insertion hole.
[0025]
DETAILED DESCRIPTION OF THE INVENTION
Below, the 1st Embodiment of this invention is described based on FIGS.
As shown in FIG. 2, reference numeral 1 denotes a frame shelf, which is connected to a plurality of vertical columns 2 arranged in the front-rear direction (depth direction) and left-right direction (frontage direction), and the front and rear of these columns 2. , A horizontal beam 4 (an example of a beam member) connected between the left and right sides of the support 2, a sub-beam 5 disposed between the front and rear beams 4, and a lower end of each support 2. And a leg member 6 provided on the head.
[0026]
As shown in FIG. 4, the support column 2 includes a front-side outer plate member 10 and a pair of left and right side plate members 11 a and 11 b that are connected to the rear from the left and right ends of the outer plate member 10 at right angles. It is formed in a U shape in plan view. A recessed portion 12 that is recessed inward is formed in the center in the width direction of the outer plate member 10 in the vertical direction. As shown in FIGS. 3 and 4, a plurality of insertion holes 13 are formed at predetermined pitches in the vertical direction in the inner bottom portion of the recessed portion 12.
[0027]
In addition, in the support column 2, one fitting portion 15 a is formed by the outer plate member 10 and the side plate member 11 a located on the left and right sides from the recessed portion 12, and the left and right other sides from the recessed portion 12. The other fitting portion 15b is formed by the outer plate member 10 and the side plate member 11b which are located at the same position.
[0028]
As shown in FIGS. 2 to 4, connecting members 18 are provided at both ends of the beam 4. These connecting members 18 are composed of a pair of side plate portions 19a and 19b facing each other in the left-right direction (frontage direction) and a front plate portion 20 connected between the front side ends of the pair of side plate portions 19a and 19b. It is formed in a U shape in plan view. Note that the connecting member 18 is configured to be fitted and removed from the outside with respect to the fitting portions 15a and 15b.
[0029]
As shown in FIG. 6, among the side plate portions 19a and 19b, a downward hook-like locking projection 21 that can be inserted into and removed from the insertion hole 13 is vertically provided at the tip of the outer side plate portion 19a. A plurality (five pieces in FIG. 6) are provided at predetermined pitch intervals in the direction. As shown in FIG. 7, the locking protrusion 21 is inserted into the insertion hole 13 and the connecting member 18 is moved downward, whereby the lower edge of the insertion hole 13 is engaged with the outer side plate part 19a. It is configured so as to be inserted between and engaged with the distal end portion of the stop projection 21, and conversely, by moving the connecting member 18 in the upward direction (withdrawal direction), The edge portion is configured to be separated from between the outer side plate portion 19a and the distal end portion of the locking projection 21.
[0030]
Further, as shown in FIG. 1, a retaining member 23 that prevents the locking projection 21 from being detached from the insertion hole 13 is configured to be detachable from the insertion hole 13.
The retaining member 23 is configured as follows.
[0031]
That is, as shown in FIGS. 8 and 9, the retaining member 23 is a flat plate-like member, formed at the rear and inserted into the insertion hole 13, formed at the front, and the above A protruding portion 27 that protrudes to the outside of the column 2 with the insertion portion 24 inserted into the insertion hole 13, an upper notch 25 that is open on the upper edge of the insertion hole 13, and under the insertion hole 13 It is comprised by the lower notch 26 of the lower end open | released inserted in an edge part.
[0032]
A detachment restricting surface 29 (an example of a detachment restricting portion) is formed at the lower end of the protruding portion 27 so as to face the upper side of the connecting member 18 and restrict the upward movement (detachment direction) of the locking projection 21. Has been. The separation regulating surface 29 is inclined forward and downward.
[0033]
The upper notch 25 is composed of a front notch 25a and a rear notch 25b that is connected to the rear of the front notch 25a and is deeper than the front notch 25a. Yes. The vertical length A (see FIG. 8) from the lower end of the rear notch 25b of the upper notch 25 to the lower end of the insertion portion 24 is larger than the vertical length L of the insertion hole 13 (see FIG. 13). Slightly shorter. Accordingly, as shown in FIG. 11, the retaining member 23 is moved upward to insert the upper edge of the insertion hole 13 to the lower end of the rear notch 25 b of the upper notch 25 and the lower edge of the insertion hole 13. By removing from the lower notch 26, the insertion part 24 can be inserted into and removed from the insertion hole 13.
[0034]
As shown in FIGS. 8 and 9, the lower notch 26 is formed in a tapered shape (inclined shape) that becomes narrower toward the upper part. Furthermore, a rear protrusion 30 protruding forward is formed at the upper end of the insertion portion 24.
[0035]
An upward movement restricting surface 31 (an example of a movement restricting portion) that restricts upward movement of the retaining member 23 inserted into the insertion hole 13 is formed at the lower end of the front notch portion 25a of the upper notch 25. Yes. The length B (see FIG. 8) from the movement restricting surface 31 to the upper end of the lower notch 26 is set slightly shorter than the vertical length L (see FIG. 13) of the insertion hole 13. Further, the movement restricting surface 31 is formed as a curved surface having the upper end portion of the lower notch 26 as a center and the length B as a radius. Further, a front surface 32 in the vertical direction is formed at the front end of the front notch 25a.
[0036]
The retaining member 23 is urged in the insertion direction X by its own weight. In addition, at the lower end portion of the insertion portion 24, a fall prevention portion 37 that prevents the retaining member 23 from falling in the insertion direction X is formed. As shown in FIG. 8, a roundness 33 having a radius R centering on a corner D of the intersection between the movement restricting surface 31 and the front surface of the rear notch 25b is formed at the lower end of the fall-preventing portion 37. Has been.
[0037]
Further, as shown in FIG. 13, the insertion hole 13 is formed in a square shape, and an upper protrusion 34 protruding downward is formed at the center of the upper edge of the insertion hole 13 in the width direction. A lower protrusion 35 protruding upward is formed at the center in the width direction of the lower edge of 13. Two retaining members 23 can be inserted into the insertion hole 13. At this time, one retaining member 23 is inserted into one side of both the projecting portions 34, 35, and the other retaining member. 23 is inserted in the other side of both said projection parts 34 and 35. As shown in FIG.
[0038]
The four corners of the insertion hole 13 and the roots of the projections 34 and 35 are rounded 36 (an example of a guide part), respectively. Further, the diagonal dimension C of the retaining member 23 is set to be larger than the vertical length L of the insertion hole 13 in the longitudinal section along the front surface 26a of the lower notch 26 and the front surface 32 of the front notch 25a. Yes. In this case, as described above, the relationship of B <L is set to be established at the same time.
[0039]
Hereinafter, the operation of the above configuration will be described.
When the beam 4 is connected to one side of the column 2 as shown in FIG. 1, the pair of side plates 19 a and 19 b of the connecting member 18 is connected to one fitting portion of the column 2 as shown by the solid line in FIG. 5. The locking projections 21 are inserted into the insertion holes 13 by being inserted into the 15a from the outside. Then, by pushing down the beam 4, the connecting member 18 moves downward, and as shown in FIG. 7, the lower edge portion of the insertion hole 13 is connected to the outer side plate portion 19 a and the distal end portion of the locking projection 21. Is inserted and engaged.
[0040]
As a result, the beam 4 is connected to one side of the support column 2. If the beam 4 remains in this state, when the connecting member 18 moves upward due to some upward force acting on the beam 4, the locking protrusion 21 is formed. There is a risk of detaching upward from the lower edge of the insertion hole 13, and in order to prevent this, the retaining member 23 is attached.
[0041]
That is, as shown in FIG. 1, the retaining member 23 is inserted into the insertion hole 13 positioned one position above the insertion hole 13 into which the uppermost locking projection 21 is inserted. At this time, first, as shown in FIG. 10, the retaining member 23 is inclined to insert the upper portion of the insertion portion 24 into the insertion hole 13, and then the upper edge portion of the insertion hole 13 is inserted into the upper notch 25. Further, as shown in FIG. 11, the retaining member 23 is lifted and the upper edge of the insertion hole 13 is inserted to the lower end of the rear notch 25 b of the upper notch 25. On this occasion,
Vertical length A (refer to FIG. 8) <Vertical length L (refer to FIG. 13)
Therefore, by rotating the retaining member 23 in the insertion direction X, the lower portion of the insertion portion 24 is inserted into the insertion hole 13.
[0042]
At this time, as shown in FIG. 11, the corner portion D abuts on the outer surface of the support column 2, and the retaining member 23 rotates in the insertion direction X with the corner portion D as a fulcrum. Since the fall-preventing portion 37 located at the lower end is formed with a roundness 33 (see FIG. 8) having a radius R centering on the corner D, the lower portion of the insertion portion 24 smoothly enters the insertion hole 13. Inserted.
[0043]
Thereafter, as shown in FIG. 12, the retaining member 23 is lowered and the lower edge portion of the insertion hole 13 is inserted into the lower notch 26. Then, by removing the hand from the retaining member 23, the retaining member 23 is urged in the insertion direction X by its own weight as shown in FIG. 9, so that the upper end portion of the lower notch 26 is used as a fulcrum in the insertion direction X. Accordingly, the movement restricting surface 31 is fitted into the upper edge of the insertion hole 13, and the front surface 32 comes into contact with the front surface of the upper edge portion of the insertion hole 13. At this time, since the movement restricting surface 31 is a curved surface having the upper end of the lower notch 26 as a center and having a length B (see FIG. 8) as a radius, the movement restricting surface 31 rotates in the insertion direction X and is inserted. It fits smoothly into the upper edge of the hole 13. Thereby, the retaining member 23 is inserted and attached to the insertion hole 13.
[0044]
Here, even if some upward force is applied to the beam 4, the upper end of the connecting member 18 comes into contact with the separation regulating surface 29 of the retaining member 23 from below, so that the upward movement of the connecting member 18 is prevented. Thus, the locking projection 21 is prevented from being detached upward from the lower edge portion of the insertion hole 13.
[0045]
At this time, as shown in FIG. 9, the movement restricting surface 31 is fitted into the upper edge of the insertion hole 13 and the lower edge portion of the insertion hole 13 is inserted into the lower notch 26. Is positioned in the vertical direction, thereby restricting vertical movement. At this time, since the lower notch 26 is formed in a tapered shape that becomes narrower toward the upper part, the lower edge of the insertion hole 13 is guided by the taper and surely enters the upper end of the lower notch 26. Thereby, the lower edge portion of the insertion hole 13 is always inserted into the lower notch 26 by a certain length, and the position of the lower notch 26 with respect to the lower edge portion of the insertion hole 13 is accurately determined.
[0046]
Further, the retaining member 23 falls in the insertion direction X when the front surface 32 contacts the front surface of the upper edge portion of the insertion hole 13 and the fall prevention portion 37 contacts the rear surface of the lower edge portion of the insertion hole 13. There is nothing.
[0047]
Further, as described above, when the upper end of the connecting member 18 comes into contact with the separation regulating surface 29 from below, the separation regulating surface 29 is inclined forward and downward, so that the upper end of the coupling member 18 is the separation regulating surface. It will contact | abut to the front-end | tip part of 29. FIG. As a result, the upward movement of the connecting member 18 is surely prevented, the connecting member 18 is guided by the release regulating surface 29 and does not escape diagonally forward, and the locking projection 21 is detached from the insertion hole 13. This can be surely prevented.
[0048]
Further, when a force in the removal direction Y acts on the retaining member 23 due to an impact or the like, the rear protrusion 30 abuts on the back surface of the upper edge portion of the insertion hole 13 as shown in FIG. 24 is not removed from the insertion hole 13.
[0049]
Further, since the retaining member 23 is urged in the insertion direction X by its own weight, immediately after the rear protrusion 30 comes into contact with the back surface of the upper edge portion of the insertion hole 13 as shown in FIG. It rotates in the insertion direction X with the upper end of the lower notch 26 as a fulcrum, thereby returning to the original mounting position shown in FIG.
[0050]
Further, as shown by the solid line in FIG. 13, when the retaining member 23 is inserted into the insertion hole 13, it is positioned on one side of both the protrusions 34 and 35. At this time, since the retaining member 23 is prevented from moving in the width direction of the insertion hole 13 by the projections 34 and 35, it is positioned in the width direction of the insertion hole 13 and the width direction of the insertion hole 13. It is prevented from slipping off. Further, since the retaining member 23 is guided by the respective rounds 36, even if the retaining member 23 is swung in the width direction of the insertion hole 13, it returns to the normal position. Furthermore, since the diagonal dimension C of the retaining member 23 is set to be larger than the vertical length L of the insertion hole 13, the retaining member 23 can be prevented from falling in the width direction of the insertion hole 13. Thereby, the retaining member 23 inserted into the insertion hole 13 is positioned above the connecting member 18 in an accurate posture without being displaced.
[0051]
Further, as shown by the phantom lines in FIG. 5, the beam 4 is connected to the other side of the column 2 in the same manner as described above. In this case, the pair of side plate portions 19 a and 19 b of the connecting member 18 are inserted into the other fitting portion 15 b of the support column 2 from the outside, and each locking projection 21 is inserted into the insertion hole 13. Further, as shown by the phantom line in FIG. 13, the retaining member 23 is inserted into the insertion hole 13 and is positioned on the other side of the protrusions 34 and 35.
[0052]
Moreover, what is necessary is just to reverse the procedure at the time of the attachment, when removing the retaining member 23 from the insertion hole 13.
In the connection structure as described above, as shown in FIG. 1, the retaining member 23 can be prevented by being inserted into the insertion hole 13, so that the locking protrusion 21 and the retaining member 23 of the coupling member 18 are prevented. The insertion hole 13 can be shared. Thereby, it is not necessary to form the pin hole for prevention separately from the insertion hole in the support | pillar conventionally. Therefore, the number of holes formed in the support column 2 can be reduced, and the strength of the support column 2 can be ensured.
[0053]
In the first embodiment, as shown in FIG. 13, the round portion 36 is formed as an example of the guide portion, but an inclined portion (taper portion) may be formed instead of the round portion 36.
[0054]
In the first embodiment, the insertion hole 13 is formed at one place in the central portion in the width direction of the support column 2 as shown in FIG. 5, but the second embodiment is shown in FIG. As described above, the insertion holes 13a and 13b may be formed at two places on the left and right of the center portion in the width direction of the support column 2.
[0055]
According to this, the locking projection 21 of the connecting member 18 fitted on one of the fitting portions 15a is inserted into the one insertion hole 13a, and the retaining member 23 for this is also inserted into the one insertion hole 13a. Is done. Further, the locking projection 21 of the connecting member 18 fitted on the other fitting portion 15b is inserted into the other insertion hole 13b, and the retaining member 23 for this is also inserted into the other insertion hole 13b. .
[0056]
Each of the insertion holes 13a and 13b is set to a dimension that allows only one retaining member 23 to be inserted and removed, and the projections 34 and 35 as in the first embodiment are formed. Not.
[0057]
Further, as a third embodiment, there is a retaining member 50 having a shape as shown in FIG. The retaining member 50 includes an insertion portion 51, a protruding portion 52, and a lower notch 53. A protrusion 54 is formed on the upper end of the protrusion 52. An overhang 55 is formed at the lower end of the insertion portion 51. The horizontal length J of the projecting portion 55 is set slightly larger than the vertical length L (see FIG. 13) of the insertion hole 13.
[0058]
According to this, the protruding portion 55 is inclined, the insertion portion 51 is inserted into the insertion hole 13, and the lower notch 53 is inserted into the lower edge portion of the insertion hole 13, whereby the retaining member 50 is inserted into the support column 2. Can be installed on. At this time, as shown by the phantom line in FIG. 15, even if the retaining member 50 is inadvertently rotated in the removal direction Y, the end portion of the overhang portion 55 contacts the upper edge portion of the insertion hole 13 from behind. Therefore, the insertion portion 51 can be prevented from dropping out of the insertion hole 13. Further, since the retaining member 50 is urged in the insertion direction X by the weight of the insertion portion 51, even if it moves in the removal direction Y due to an impact or the like, immediately after that, it rotates in the insertion direction X and becomes regular. Return to position. Further, the retaining member 50 is positioned in the vertical direction between the upper end of the lower notch 53 and the upper end of the insertion portion 51.
[0059]
Further, as a fourth embodiment, there is a retaining member 60 having a shape as shown in FIGS. The retaining member 60 includes an insertion portion 61, a protruding portion 62, and a lower notch 63. A protrusion 64 is formed at the upper end of the protrusion 62. Further, a movement restricting surface 65 for restricting upward movement is formed at the upper end of the insertion portion 61. The movement restricting surface 65 is formed in a mountain shape, and the length K from the apex 65a of the movement restricting surface 65 to the upper end of the lower notch 63 is longer than the vertical length L of the insertion hole 13 (see FIG. 13). It is set slightly larger.
[0060]
According to this, the retaining member 60 can be attached to the column 2 by inserting the insertion portion 61 into the insertion hole 13 and inserting the lower notch 63 into the lower edge portion of the insertion hole 13. At this time, since the apex 65a of the movement restricting surface 65 crosses the upper edge of the insertion hole 13 from the front to the rear, the retaining member 60 is prevented from being accidentally dropped from the insertion hole 13 with a slight force. Can do. Further, since the retaining member 60 is urged in the insertion direction X by the weight of the insertion portion 61, the effect of preventing the dropout member 60 from falling off is further improved.
[0061]
Further, as a fifth embodiment, there is a retaining member 70 having a shape as shown in FIGS. The retaining member 70 includes an insertion part 71, a projecting part 72, and an upper notch 73. A protrusion 74 is formed at the lower end of the protrusion 72. A lower end surface 75 of the upper notch 73 is formed in a mountain shape, and a front portion from the apex 76 of the lower end surface 75 is a front lower end surface 75a, and a rear portion from the apex 76 is a rear lower end surface 75b.
[0062]
Further, an arcuate surface 77 having a radius S with the rear corner of the rear lower end surface 75b as the center is formed at the lower end of the insertion portion 71. The radius S is set slightly smaller than the vertical length L of the insertion hole 13 (see FIG. 13).
[0063]
According to this, when attaching the retaining member 70 to the column 2, first, as shown in FIG. 19, the upper notch 73 is inserted into the upper edge portion of the insertion hole 13. Then, the retaining member 70 is rotated in the insertion direction X with the rear corner of the rear lower end surface 75b as a fulcrum at a position where the rear corner of the rear lower end surface 75b is brought into contact with the upper edge end of the insertion hole 13. On this occasion,
Radius S (see FIG. 18) <length L (see FIG. 13)
Therefore, the insertion portion 71 is inserted into the insertion hole 13, and the projection 74 comes into contact with the outer surface of the lower edge portion of the insertion hole 13.
[0064]
Thereafter, as shown in FIG. 18, by further pushing the retaining member 70 in the insertion direction X, the apex 76 crosses the upper edge of the insertion hole 13 from the front to the rear, and the front lower end surface 75 a extends to the insertion hole 13. Located below the upper edge. In this state, when a force in the removal direction Y acts on the retaining member 70, the retaining member 70 tries to rotate in the removal direction Y with the front corner of the front lower end surface 75a as a fulcrum. Since the rear lower end surface 75b is displaced from the rear corner to the front corner of the front lower end surface 75a, the length Q from the front corner of the front lower end surface 75a to the arc surface 77 is the vertical length L of the insertion hole 13. (Q> L). Accordingly, it is possible to prevent a problem that the retaining member 70 is inadvertently rotated in the withdrawal direction Y with the front corner of the front lower end surface 75a as a fulcrum and dropped from the insertion hole 13.
[0065]
When removing the retaining member 70 from the support column 2, the vertex 76 passes the upper edge of the insertion hole 13 from the rear to the front and the rear lower end surface 75b is inserted by pulling the retaining member 70 straight forward. Located below the upper edge of the hole 13. Thereafter, as shown in FIG. 19, the insertion member 71 is removed from the insertion hole 13 by rotating the retaining member 70 in the removal direction Y with the rear corner of the rear lower end surface 75 b as a fulcrum. Is removed from the column 2.
[0066]
【The invention's effect】
As described above, according to the first invention, since the retaining member can be prevented from being inserted into the insertion hole, it is possible to share the insertion hole between the locking protrusion of the connecting member and the retaining member. it can. Thereby, it is not necessary to form the pin hole for prevention separately from the insertion hole in the support | pillar conventionally. Therefore, the number of holes formed in the support can be reduced, and the strength of the support can be ensured.
[0067]
According to the second aspect of the invention, since the connecting member comes into contact with the separation regulating portion from below, the upward movement of the coupling member is prevented, and thus the upward movement of the locking projection is prevented from the separation regulating portion. The locking projection can be prevented from coming off.
[0068]
According to the third aspect of the invention, the upward movement of the connecting member is reliably prevented, the connecting member is not guided by the release restricting portion and escapes diagonally forward, and the locking protrusion is released from the insertion hole. This can be surely prevented.
[0069]
According to the fourth invention, the insertion portion is inserted into the insertion hole, and the upper edge portion of the insertion hole is inserted into the upper cutout and the lower edge portion of the insertion hole is inserted into the lower cutout, A retaining member is attached to the column.
[0070]
According to the fifth aspect of the invention, the retaining member is positioned up and down, thereby restricting the vertical movement of the retaining member.
According to the sixth aspect of the present invention, even if the retaining member moves in the removal direction due to an impact or the like and the movement restricting portion is detached from the upper edge portion of the insertion hole, immediately after that, the retaining member is moved in the insertion direction by its own weight. Since it is energized, it returns in the insertion direction. Accordingly, the movement restricting portion is fitted into the upper edge of the insertion hole, and the retaining member is reliably positioned up and down.
[0071]
According to the seventh aspect of the present invention, the lower edge portion of the insertion hole is guided by the inclination of the lower notch and surely enters the predetermined position of the upper end portion of the lower notch. Thereby, when the retaining member returns to the insertion direction by its own weight, the position of the lower notch with respect to the lower edge end of the insertion hole is accurately determined.
[0072]
According to the eighth aspect of the present invention, when a force in the insertion direction acts on the retaining member inserted into the insertion hole, the retaining member comes into contact with the back surface of the lower edge portion of the insertion hole. Can be prevented from falling in the insertion direction.
[0073]
  According to the ninth invention, the lower end portion of the insertion portion can be smoothly inserted into the insertion hole.
  Book number11According to the invention, when the retaining member is inserted into the insertion hole, the retaining member is prevented from moving in the width direction of the insertion hole by the protrusion, so that one side portion in the width direction of the insertion hole (or Positioned on the other side. Thereby, it can prevent that a securing member shifts | deviates to the width direction of an insertion hole.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a connection structure between a column of a shelf and a beam in the first embodiment of the present invention.
FIG. 2 is a perspective view of the shelf.
FIG. 3 is a front view showing a connection structure between a shelf column and a beam.
FIG. 4 is a plan view of the column and the connecting member, showing a state where the connecting member is removed from the column.
FIG. 5 is a plan view of the column and the connecting member, showing a state in which the connecting member is attached to the column.
6 is a view taken in the direction of arrows WW in FIG.
FIG. 7 is an enlarged view of the locking projection.
FIG. 8 is a side view of the retaining member.
FIG. 9 is a side view of the retaining member attached to the column.
FIG. 10 is a side view showing a procedure for attaching the retaining member to the column, and shows a state where the upper part of the insertion portion is inserted into the insertion hole.
FIG. 11 is a side view showing a procedure for attaching the retaining member to the column, and shows a state in which the upper edge portion of the insertion hole is inserted to the lower end of the upper notch.
FIG. 12 is a side view showing a procedure for attaching the retaining member to the column, and shows a state in which the lower edge portion of the insertion hole is inserted into the lower notch.
13 is a view taken along the arrow WW in FIG. 9;
FIG. 14 is a plan view of a column and a connecting member according to the second embodiment of the present invention, showing a state in which the connecting member is attached to the column.
FIG. 15 is a side view of a retaining member according to a third embodiment of the present invention.
FIG. 16 is a side view of a retaining member according to a fourth embodiment of the present invention.
FIG. 17 is an enlarged view of the movement restricting surface of the retaining member.
FIG. 18 is a side view of a retaining member according to a fifth embodiment of the present invention, showing a state where the retaining member is attached to a column.
FIG. 19 is a side view of the retaining member, showing a stage in the middle of being attached to the column.
FIG. 20 is an enlarged view of the upper cutout of the retaining member.
FIG. 21 is a perspective view showing a conventional connection structure between a column of a shelf and a beam member.
[Explanation of symbols]
1 shelf
2 props
4 Beam (beam material)
13 insertion hole
18 Connecting members
21 Locking protrusion
23 retaining member
24 Insertion part
25 Top notch
26 Bottom notch
29 Withdrawal restriction surface (Leaving restriction section)
31 Movement restriction surface (movement restriction part)
33 Roundness
34, 35 Protrusion
36 Roundness
37 Folding prevention part
50, 60, 70 retaining member
C diagonal dimensions
L Vertical length of insertion hole
X Insertion direction
Y Removal direction

Claims (11)

It is a connection structure of vertical columns and horizontal beams constituting the shelf,
A plurality of insertion holes are formed in the upper and lower columns,
A connecting member is provided at the end of the beam material,
The connecting member is formed with a locking projection that can be inserted into and removed from the insertion hole.
A retaining member that prevents the locking projection from being detached from the insertion hole is configured to be detachable from the insertion hole,
The above-mentioned retaining member has an insertion part to be inserted into the insertion hole, a protrusion part protruding to the outside of the support column, and a lower notch to be inserted into the lower edge part of the insertion hole,
At the lower end of the protruding portion, a detachment restricting portion that restricts movement of the locking protrusion in the detaching direction is formed ,
With the insertion portion inserted into the insertion hole, the retaining member is urged in the insertion direction by its own weight. At this time, the lower edge of the insertion hole is inserted into the lower notch, and the upper end of the projection A structure for connecting a column of a shelf and a beam material, in which abuts against the front surface of the upper edge portion of the insertion hole . The locking projection is formed in a downward hook shape,
The release direction of the locking protrusion is the upward direction,
The retaining member is inserted into the insertion hole above the insertion hole into which the locking projection is inserted,
2. The structure for connecting a column of a shelf and a beam member according to claim 1, wherein the detachment restricting portion faces above the connecting member.   The connection structure of the support | pillar of a shelf and a beam material of Claim 2 characterized by the above-mentioned. An insertion part to be inserted into the insertion hole, an upper notch to be inserted into the upper edge part of the insertion hole, and a lower notch to be inserted into the lower edge part of the insertion hole are formed in the retaining member,
When the insertion part is inserted into the insertion hole, the upper edge part of the insertion hole is inserted into the upper notch and the lower edge part of the insertion hole is inserted into the lower notch, so that the insertion part is prevented from coming off,
By moving the retaining member upward and inserting the upper edge of the insertion hole to the lower back of the upper notch and removing the lower edge of the insertion hole from the lower notch, the insertion part is 4. The connection structure of a column of a shelf and a beam material according to claim 2 or 3, wherein the connection structure is configured to be freely inserted into and removed from the insertion hole. The upper notch is formed with a movement restricting portion for restricting the upward movement of the retaining member inserted into the insertion hole,
5. The retaining member is vertically positioned by inserting the movement restricting portion into the upper edge of the insertion hole and inserting the lower edge portion of the insertion hole into the lower notch. A connection structure between a shelf support and a beam. The movement restricting portion is fitted on the upper edge of the insertion hole when the retaining member moves in the insertion direction, and is detached from the upper edge portion of the insertion hole when the retaining member moves in the removal direction. coupling structure between supports and Harizai shelf according to claim 5, characterized in that it is configured.   7. The connection structure of a column of a shelf and a beam material according to claim 6, wherein the lower notch is formed in an inclined shape that becomes narrower toward the upper part.   8. The structure for connecting a column of a shelf and a beam material according to claim 7, wherein a fall prevention portion for preventing the fall-off member from falling in the insertion direction is formed at a lower end portion of the insertion portion.   The connection structure of the support | pillar of a shelf and a beam material of Claim 4 characterized by rounding the lower end part of the insertion part. A protrusion is formed at the upper end of the protrusion,
With the insertion portion inserted into the insertion hole, the retaining member is urged in the insertion direction by the weight of the insertion portion. At this time, the lower edge portion of the insertion hole is inserted into the lower notch, and the protrusion is 2. The structure for connecting a column of a shelf and a beam material according to claim 1 , wherein the structure contacts the front surface of the upper edge portion of the insertion hole . Beam material can be connected to both sides of the column,
It is one of the stop members dropout performing a stop of one of the beam members and the other performs the stopper of the beam members other disconnect stop member configured detachably relative to the common insertion hole,
Projections are formed on the upper and lower edges of the insertion hole,
One retaining member is positioned in the width direction between the upper and lower projections and one side edge of the insertion hole,
The shelf according to any one of claims 1 to 10, wherein the other retaining member is positioned in the width direction between the upper and lower protrusions and the other side edge of the insertion hole. Connecting structure of the column and beam.

Images