JP2007145560A - Rack - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce costs to be required to stretch a connecting material of a rack formed by connecting support materials of vertical frames for a division with the connecting material. <P>SOLUTION: The support material 6 having a hollow cross section is provided with a fitting hole 17a, which is formed of a small width hole part 15 and a large width hole part 16 continued to each other, in a side plate part 11 thereof. A bolt 14a has a head part 18 capable of passing through the large width hole part 16 of the fitting hole 17a from the outside to the inside of the support material, a shaft part 20 provided adjacent to the head part 18 freely to be fitted into the small width hole part 15 from the large width hole part 16, a screw shaft part 19 screwed to a screw hole 23a of a reinforcing washer 13, and a rotary operation part 21 formed in a tip of the screw shaft part 19. The side plate part 11 of the support material 6 is pinched between the head part 18 of the bolt 14a, which is in the state that the shaft part 20 thereof is fitted in the small width hole part 15 of the fitting ole 17a, and the reinforcing washer 13, and the connecting material 9 is fitted between the screw shaft part 19 of the bolt 14a projecting from a screw hole 22a of the reinforcing washer 13 and a nut 26 to be screwed to the screw shaft part 19. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

    The present invention relates to a rack that can be used as an automatic warehouse rack disposed along a traveling path of a traveling crane for loading and unloading in an automatic warehouse.

In this type of rack, the partition vertical frames are erected at appropriate intervals in the rack length direction, and the column members of each partition vertical frame are connected by a connecting member so that the vertical frames between adjacent partitions are vertically moved. It is constructed so that load storage compartments can be formed in a plurality of stages, but as a connecting material attachment structure to the supporting material, a reinforcing seat plate is penetrated at the connecting material attachment location of the supporting material, and the supporting material is penetrated. And a screw hole provided in the reinforcing seat plate is attached with a bolt that penetrates and the connecting member is attached to the outside of the reinforcing seat plate with the bolt projecting from the reinforcing seat plate and a nut screwed into the bolt. Is known, for example, from US Pat. In the conventional connecting material mounting structure described in Patent Document 1, the bolt for attaching the reinforcing seat plate penetrates the support material horizontally, and protrudes from the back side of the support material to the support material surface side through the support material. In order to screw the screw shaft portion of the bolt that has been made into the screw hole of the reinforcing seat plate and fix the reinforcing seat plate to the support material, the bolt head is rotated from the back side of the support material.
JP 2001-287815 A

  In the conventional connecting material mounting structure as described above, the front and rear side plate portions that are parallel to each other can be used as the support material, and the bolts can be penetrated in the front-rear horizontal direction and the heads of the bolts can be received on the back side of the support material. Must be provided. In other words, even if it is a square-pipe-shaped column material having a relatively wide width or a substantially U-shaped cross section with the width direction center portion on the back side open, the bolt heads are received on both sides of the back side open portion. It is necessary that the column material has a side plate part that is wide enough to be able to be used, and a column material having a cross-sectional shape that does not have a wide side plate unit that can receive the bolt head on the back side is used. The conventional connecting material mounting structure described in Patent Document 1 cannot be used for the rack.

  An object of the present invention is to provide a rack capable of solving the above-mentioned conventional problems, and when the means thereof is shown with reference numerals of embodiments described later, a partition vertical frame is shown. 2 is a rack in which the support members 6 of the vertical frames 2 for each partition are connected by a connecting member 9 and are connected to the connecting members of the supporting members 6. In the rack in which the reinforcing seat plate 13 sandwiched between the support members 6 and 7 and the connecting member 9 is attached by a bolt 14a, the support member 6 has a hollow cross section, and the side plate portion 11 thereof. Is provided with a mounting hole 17a in which a small width hole portion 15 and a large width hole portion 16 are connected, and the bolt 14a penetrates the large width hole portion 16 of the mounting hole 17a from the outer side of the column material to the inner side of the column material. Adjacent to the head 18 that can be made In addition, the shaft portion 20 that can be fitted into the small width hole portion 15 from the large width hole portion 16 of the mounting hole 17a, the screw shaft portion 19 that is screwed through the screw hole 23a of the reinforcing seat plate 13, and the screw shaft portion. 19 between the head 18 of the bolt 14a and the reinforcing seat plate 13 in a state where the shaft portion 20 is fitted in the narrow hole portion 15 of the mounting hole 17a. The connecting member is sandwiched between the side plate portion 11 of the column member 6 and the nut 26 which is screwed into the screw shaft portion 19 of the bolt 14 a protruding from the screw hole 22 a of the reinforcing seat plate 13. 9 is attached.

  For carrying out the present invention having the above-described configuration, specifically, as described in claim 2, the mounting holes 17 a and 17 b on the support column side and the screw holes 22 a and 22 b on the reinforcing seat plate 13 side are provided in pairs on the left and right sides, The reinforcing seat plate 13 can be attached to the column member 6 by the two bolts 14a and 14b.

  According to a third aspect of the present invention, the reinforcing seat plate 13 includes a head 18 of the bolt 14a and the reinforcing seat plate 13 in a state where the shaft portion 20 is fitted into the narrow hole portion 15 of the mounting hole 17a. When the side plate portion 11 of the support material 6 is sandwiched between them, it is possible to provide a protruding portion 23a that fits into the wide hole portion 16 of the attachment hole 17a on the support material 6 side. In this case, as described in claim 4, the reinforcing seat plate 13 is formed in the upper region of the periphery of the protruding portion 23 a of the reinforcing seat plate 13 with respect to the center of the protruding portion 23 a by the notch 24 to the reinforcing seat plate 13. A side surface 25 rising at a right angle to the plate surface can be provided.

  According to the rack according to the present invention having the above-described configuration, the head portion of the bolt in which the screw shaft portion is screwed into the screw hole of the reinforcing seat plate from the back side in advance to the wide hole portion of the mounting hole from the front side of the column member. The shaft portion adjacent to the bolt head is inserted into the small width hole portion from the large hole portion of the mounting hole, and in this state, protrudes to the front side of the reinforcement seat plate. The bolt is rotated by using a rotation operation portion at the tip of the screw shaft portion of the bolt, and the side plate portion on the front side of the column material is sandwiched between the reinforcement seat plate and the bolt head portion, and the reinforcement seat plate is attached to the column. Can be fixed to the front side of the material. Thereafter, like the conventional one, the connecting member can be fixed between the reinforcing seat plate and a nut screwed into the screw shaft portion of the bolt projecting to the front side of the reinforcing seat plate.

  That is, in the configuration of the present invention, as a column material having a hollow cross-section to which the reinforcing seat plate is attached, the side plate portion to which the reinforcing seat plate is attached, that is, the front side plate portion, the small width hole portion and the large width hole portion. Any support material can be used as long as it can even be provided with mounting holes that are continuous with each other. Therefore, the connecting member mounting structure in the rack of the present invention can be utilized without problems even in a rack in which a cross-sectional column member having no wide side plate portion capable of receiving the bolt head on the back side is used. it can. In addition, since the mounting operation of the reinforcing seat plate to the support member and the connecting operation of the connecting member to the reinforcing seat plate can all be performed from the front side to which the reinforcing seat plate of the support member is attached, the operation can be performed easily and efficiently.

  In addition, according to the structure of Claim 2, while a reinforcement seat board can be firmly attached to a support | pillar material with two bolts, both the right and left sides of a support | pillar material are utilized using each of the said 2 bolts. However, when the head and shaft of the two bolts are engaged with the mounting holes on the column material, the reinforcing seat plate is prevented from rotating. The fastening operation by the rotating operation can be easily performed.

  Further, by connecting the small hole portion of the mounting hole to the lower side of the large hole portion, the fastening force of the bolt to the reinforcing seat plate (reinforcement seat plate clamping force between the reinforcing seat plate and the bolt head) ) Is somewhat lowered due to the slack of the bolt, there is no fear that the bolt head will come out from the large hole portion of the mounting hole unless the reinforcing seat plate moves up against gravity. According to the configuration described above, even when the above situation occurs, the reinforcement seat plate moves up against gravity, whereas the projection on the reinforcement seat plate side that fits into the wide hole portion of the mounting hole. The part becomes resistance, and safety against loosening of the bolt is further enhanced. In this case, according to the configuration described in claim 4, not only can the implementation be easier and cost can be reduced than when the protruding portion is configured by attaching another part to the reinforcing seat plate by welding or the like, the protruding portion It is possible to more reliably and strongly prevent the reinforcing seat plate from moving up against gravity due to the contact between the right angle rising side surface of the portion and the inner peripheral surface of the wide hole portion of the mounting hole. Therefore, when the connecting material attached by the screw shaft portion of the bolt projecting from the reinforcing seat plate and the nut screwed to the bolt is a brace material extending obliquely upward from the bolt (with the horizontal connecting material) In other words, it is possible to reliably prevent the reinforcing seat plate from being pulled upward by the tension acting on the brace material when the bolt is relaxed, and to improve safety.

  A specific embodiment of the present invention will be described below with reference to the accompanying drawings. As shown in FIG. 1, a rack 1 shown in this embodiment includes a large number of partition vertical frames 2 and adjacent partition vertical frames. And a plurality of upper and lower horizontal connection frames 3 that connect the two, and each partition vertical frame 2 includes a load support 4 that forms a load storage space between the adjacent partition vertical frames 2 in a plurality of upper and lower stages. Is attached. Each horizontal connection frame 3 is disposed in the vicinity of the upper end of the load storage space formed on the upper side of the load support 4 so as not to obstruct the loading and unloading of the load. Of course, the level of the load storage space at which the horizontal connection frame 3 is disposed in the vicinity of the upper end may be higher than the height of the load storage space at other levels. Furthermore, as shown in FIGS. 1-3, the vertical brace 5 which connects the vertical frames 2 for division located in an appropriate space | interval on the back side which does not load / unload is provided.

  As shown in FIG. 3, each partition vertical frame 2 includes a front side (unloading / unloading side) support member 6, a rear support member 7, and diagonal connecting members 8 that connect and integrate the front and rear support members 6, 7. The front and rear ends of each stage of the load support 4 are attached to the side surfaces of the front and rear support members 6 and 7 in a cantilever manner.

  As shown in FIG. 2, the horizontal connecting frame 3 at each stage includes two front and rear horizontal connecting members 9 for connecting the front supporting members 6 and the rear supporting members 7 of the vertical frame 2 for each section separately. And a plurality of horizontal braces 10 installed obliquely between the front and rear horizontal connecting members 9.

  As shown in FIGS. 4 to 6, each of the support members 6 and 7 includes a front plate 11 facing the outside of the partition vertical frame 2, and the partition vertical frame 2 from the left and right sides of the front plate 11. It has a substantially U-shaped cross section consisting of a pair of left and right lateral side plate portions 12 that are bent inward, and the front side plate portion 11 is recessed in the shape of a square groove on the inner side in the center in the width direction. Reinforcing rib portions 11a are formed, and the left and right lateral plate portions 12 are formed with diagonal connecting member holding portions 12a having a narrow interval on the free side thereof, and free play of the oblique connecting member holding portions 12a. Reinforcing ribs 12b are formed on the sides to project outward in a mountain shape. Thus, the reinforcing seat plate 13 is attached to the portions of the column members 6 and 7 where the respective horizontal connection frames 3 are joined by the two bolts 14a and 14b in contact with the front plate portion 11, respectively. ing.

  That is, as shown in detail in FIG. 6, the front side plate portion 11 at the position where the stepped horizontal connection frames 3 of the support members 6 and 7 are coupled to the front side plate portion 11 on both the left and right sides of the reinforcing rib portion 11 a. Dalma-shaped mounting holes 17a and 17b each having a hole 15 and a circular large-width hole 16 communicating directly above the small-width hole 15 are provided. On the other hand, the two bolts 14 a and 14 b are formed between a circular head 18, a screw shaft portion 19 projecting concentrically from the head portion 18, and the screw shaft portion 19 and the head portion 18. The small-diameter shaft portion 20 and a rotation operation portion 21 formed at the tip of the screw shaft portion 19 from a minus groove 21a. The head portion 18 is formed of the large-width hole portion 16 of the mounting holes 17a and 17b. The diameter of the small-diameter shaft portion 20 is smaller than the width (inner diameter) and larger than the width of the small-width hole portion 15, and the axial width of the small-diameter shaft portion 20 is larger than the thickness of the front side plate portion 11 of the column members 6 and 7. It is slightly wider, and its diameter is slightly smaller than the width of the small hole portion 15 of the mounting holes 17a and 17b.

  The reinforcing seat plate 13 is provided at the same interval as the interval between the two mounting holes 17a and 17b arranged in parallel, and a pair of left and right screw holes 22a that can threadably penetrate the screw shaft portions 19 of the bolts 14a and 14b, respectively. 22b and projecting portions 23a and 23b formed at positions directly above these screw holes 22a and 22b. These projections 23a and 23b are fitted into the narrow holes 15 of the mounting holes 17a and 17b with the small-diameter shafts 20 of the bolts 14a and 14b in which the screw shafts 19 are screwed through the screw holes 22a and 22b. When installed, the mounting holes 17a and 17b are provided at a position on the back side of the reinforcing seat plate 13 facing the wide hole portion 16 and have a circular shape with a diameter that can be just fitted into the wide hole portion 16. Thus, the circular portion of the reinforcing seat plate 13 is pressed and protruded to the back side to be integrally formed.

  The reinforcing seat plate 13 is required to have a certain thickness (for example, an iron plate having a thickness of about 6 mm) for the purpose of use. Therefore, the entire circumference of the circular protrusions 23a and 23b is formed around the reinforcing seat plate 13. It is not easy to form a cylindrical surface that rises at a substantially right angle to the plate surface because its diameter is relatively small. Therefore, in this embodiment, the reinforcing seat plate 13 is provided in an upper region (region opposite to the side where the screw holes 22a and 22b are provided) with respect to the center of the projecting portions 23a and 23b, around the projecting portions 23a and 23b. A circular arc-shaped side surface 25 that rises at a right angle to the plate surface of the reinforcing seat plate 13 is formed by a cut 24 with respect to. These arc-shaped side surfaces 25 are formed in a range of approximately 90 degrees obliquely upward in a direction away from each other with respect to the centers of the projecting portions 23a and 23b in order to minimize the length of the cuts 24.

  When attaching the reinforcing seat plate 13 to the column members 6 and 7, as shown in FIG. 8A, the screw shaft portions 19 of the bolts 14a and 14b are inserted into the screw holes 22a and 22b in advance from the back side of the reinforcing seat plate 13 in substantially the same length. Then, the heads 18 of the bolts 14a and 14b are inserted through the wide holes 16 in the mounting holes 17a and 17b of the support members 6 and 7, and the bolt heads 18 are inserted into the support members 6 and 7 respectively. The reinforcing seat plate 13 is slid downward in contact with the inner side surface of the front plate portion 11, and as shown in FIG. 8B, the small-diameter shaft portions 20 of both bolts 14a and 14b are connected to the large mounting holes 17a and 17b. The narrow hole portion 15 is fitted into the small width hole portion 15. In such a state, the bolts 14a and 14b are attached to the head using a tool that fits the rotation operation portion 21 (minus groove 21a) at the tip of the screw shaft portion of both bolts 14a and 14b protruding to the front side of the reinforcing seat plate 13. The portion 18 is rotated in a direction to draw it toward the back side of the reinforcing seat plate 13, and as shown in FIG. 8C, the front side plate portions 11 of the support members 6 and 7 between the bolt head 18 and the back surface of the reinforcing seat plate 13. Sandwich. As a result, as shown in the drawing, the reinforcing seat plate 13 in a state where the two projecting portions 23a, 23b on the reinforcing seat plate 13 side are fitted in the wide hole portions 16 in the mounting holes 17a, 17b on the support member 6, 7 side. Are fixed to the front side plate portions 11 of the support members 6 and 7 in a contact state. At this time, the arc-shaped side surfaces 25 of the projecting portions 23a and 23b are adjacent to the inner peripheral surface of the large-width hole portion 16 in the mounting holes 17a and 17b.

  As shown in FIGS. 4, 5 and 8D, if the reinforcing seat plate 13 is attached to the predetermined positions of the support members 6 and 7 with two bolts 14a and 14b, respectively, as described above, By using the screw shaft portions 19 of the bolts 14a and 14b protruding outside the reinforcing seat plate 13, the support members 6 and 7 are connected to each other, that is, both the front and rear horizontal connecting members 9 constituting the horizontal connecting frame 3. And the end of the vertical brace 5 can be attached. That is, as shown in FIGS. 4, 5 and 8D, the front and rear horizontal connecting members 9 constituting the horizontal connecting frame 3 are formed by forming flat end portions 9a at both ends of a round pipe member, The flat end portion 9a of the horizontal connecting member 9 is brought into contact with the surface of the reinforcing seat plate 13 so that the screw shaft portions 19 of the bolts 14a and 14b are inserted into the mounting holes 9b provided in the flat end portion 9a. In this state, the nut 26 can be fixed to the reinforcing seat plate 13 by screwing and fastening the nut 26 to the bolt screw shaft portion 19. As shown in FIG. 4, the flat end portion 9 a of the horizontal connecting member 9 is flush with the outer surface of the horizontal connecting member 9 in a plan view with the outer surface opposite to the side contacting the reinforcing seat plate 13. It is desirable that both ends of the round pipe material be flattened so that the horizontal connecting member 9 does not protrude outward from the outer surface of the flat end 9a.

  4A and 4C, since the horizontal connection frame 2 is coupled to only one side of the column members 6 and 7 of the partition vertical frame 2 positioned at both ends of the rack in the longitudinal direction. Of the two bolts 14a and 14b to which the respective reinforcing seat plates 13 are attached, only one of the bolts is used for attaching the horizontal connecting member 9, but the nut 26 is also screwed and fastened to the other bolt. Can be kept. 4C, 4D, and 4D are also provided on the reinforcing seat plate 13 of the rear column member 7 at the position where the end of the vertical brace 5 on the rear side of the rack is attached. As shown in FIG. 5B, before the flat end portion 9a of the horizontal connecting member 9 is fastened to the reinforcing seat plate 13 with the bolt screw shaft portion 19 and the nut 26, the end portion of the vertical brace 5 is connected to the bolt screw shaft portion 19; That is, the mounting plate member 28 provided with the nut portions 28a to be screwed into the both-end screw shaft portions 27a of the brace rod 27 is horizontally placed so that the bolt screw shaft portion 19 is inserted into the mounting hole provided in the mounting plate material 28. The outer end of the flat end 9a of the connecting member 9 is overlapped with the end of the horizontal connecting member 9 by screwing and fastening the nut 26 to the bolt screw shaft portion 19 outside the mounting plate 28 of the vertical brace 5. One bolt screw shaft with the end of the vertical brace 5 It can be fastened together with the 9 and the nut 26. Of course, at the place where the vertical braces 5 are symmetrically arranged on the upper and lower sides of the horizontal connecting frame 3 on one side of the partitioning vertical frame 2, the end of the horizontal connecting member 9 (flat end 9a) and the upper and lower vertical The end portions of the braces 5 (mounting plate material 28) can be fastened together with one bolt screw shaft portion 19 and the nut 26 in a state where three pieces are stacked.

  As shown in FIGS. 4B, 4C and 5A, the horizontal brace 10 constituting the horizontal connection frame 3 is also formed by forming flat end portions 10a at both ends of the round pipe material in the same manner as the horizontal connection material 9. In this case, the flat end portion 10 a can be overlapped on the upper side of the horizontal connecting member 9 and can be connected to the horizontal connecting member 9 with the bolts 29 and nuts 30 in the vertical direction. The end structure of the horizontal connecting member 9 and the vertical brace 5 connected by the nut 26 and the structure of the horizontal brace 10 connected to the horizontal connecting member 9 may be anything. Further, regarding the bolts 14a and 14b, the small-diameter shaft portion 20 that is not threaded is provided, but the base portion adjacent to the head portion 18 of the screw shaft portion 19 is fitted to the small-width hole portion 15 of the mounting holes 17a and 17b. May be used as a small-diameter shaft portion, or a minus groove 21a is provided as a rotation operation portion 21 at the tip of the screw shaft portion 19, but a plus groove or a square shaft portion for use of a spanner (such as a hexagonal shaft or a square shaft). ). FIG. 9 shows bolts 14 a and 14 b provided with a hexagonal shaft portion 21 b as the rotation operation portion 21 at the tip of the screw shaft portion 19.

It is a schematic front view of the whole rack. It is a schematic plan view of the whole rack. It is a schematic side view of the whole rack. FIGS. A and B are cross-sectional plan views of the main part for explaining the connecting position of the horizontal connection material of the horizontal connection frame to the front support material, and FIGS. C and D are perpendicular to the horizontal connection material of the horizontal connection frame to the rear support material. It is a cross-sectional top view of the principal part explaining the joining location of a brace. FIG. A is a rear view of a main part for explaining a connecting position of the horizontal connecting material of the horizontal connecting frame to the front supporting member, and FIG. B is an illustration of a connecting part of the horizontal connecting material and the vertical brace of the horizontal connecting frame to the rear supporting member. It is a rear view of the principal part. It is a disassembled perspective view of the principal part explaining the attachment structure of the reinforcement seat board with respect to a support | pillar material. Fig. A is a rear view of the reinforcing seat plate, and Fig. B is an enlarged sectional view taken along line XX in Fig. A. FIGS. A to D are longitudinal side views of the main part for explaining the attachment procedure of the reinforcing seat plate. Fig. A is a side view showing a modified example of the bolt, and Fig. B is a rear view of the bolt as viewed from the rotation operation unit side.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Rack 2 Vertical frame for division 3 Horizontal connection frame 4 Load support 5 Vertical brace 6 Front support material (vertical frame for division)
7 Rear support material (vertical frame for section)
8 Diagonal connection material 9 Horizontal connection material (horizontal connection frame)
10 Horizontal brace (horizontal connection frame)
11 Front side plate portion 13 of support material Reinforcement seat plate 14a, 14b Bolt 15 Small width hole (mounting hole)
16 Wide hole (mounting hole)
17a, 17b Mounting hole 18 Bolt head 19 Bolt screw shaft portion 20 Bolt small diameter shaft portion 21 Bolt rotation operation portion 21a Minus groove 21b Hexagon shaft portions 22a, 22b Screw holes 23a, 23b Protrusion portion 24 Reinforcement seat plate cutout 25 Protrusion portion Arc-shaped side 26 nut

Claims (4)

  A rack in which the vertical frames for compartments are erected at appropriate intervals in the rack length direction, and the pillar materials of the respective vertical frames for compartments are connected by a connecting material, and the racks are connected to the connecting material attachment positions of the pillar materials. In a rack in which a reinforcing seat plate sandwiched between the support material and the connecting material is attached by bolts, the support material has a hollow cross-section, and the side plate has a small hole and a large hole. A mounting hole connected to the width hole portion is provided, and the bolt has a head that can penetrate the large width hole portion of the mounting hole from the outer side of the column material to the inner side of the column material, and adjacent to the head and the mounting A shaft portion that can be fitted into the small width hole portion from the large width hole portion of the hole, a screw shaft portion that threadably penetrates the screw hole of the reinforcing seat plate, and a rotation operation portion that is formed at the tip of the screw shaft portion; A bolt head and a reinforcing seat plate in a state in which the shaft portion is fitted in the narrow hole portion of the mounting hole. The connecting member is attached between the reinforcing seat plate and the nut screwed into the screw shaft portion of the bolt protruding from the screw hole of the reinforcing seat plate. There is a rack.   The rack according to claim 1, wherein a pair of left and right mounting holes on the support material side and screw holes on the reinforcement seat plate side are provided, and the reinforcement seat plate is attached to the support material by the two bolts.   When the side plate portion of the column material is sandwiched between the head portion of the bolt in a state where the shaft portion is fitted in the narrow hole portion of the mounting hole and the reinforcement seat plate, The rack according to claim 1, wherein a protrusion that fits into the wide hole portion of the attachment hole is provided. The projecting portion of the reinforcing seat plate is obtained by partially pressing and projecting the reinforcing seat plate, and the upper portion of the periphery of the projecting portion with respect to the center of the projecting portion is cut into the reinforcing seat plate. The rack according to claim 3, wherein a side surface rising at a right angle to the plate surface of the reinforcing seat plate is provided.

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