JP2010036976A - Telescopic rack and deck apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a telescopic rack reducing tremor of a rack at an earthquake to prevent damage of the rack and storage articles. <P>SOLUTION: A latticed frame-shaped loading floor 3 is arranged on lower end sides of four pillars of right and left front pillars 1, 1 and right and left rear pillars 2, 2, an internal distance W of the right and left front pillars 1, 1 is set wider than an external distance W1 of the right and left rear pillars 2, 2, a rear upper beam 4 is arranged over the upper end faces of the right and left rear pillars 2, 2, a side upper beam 5 is arranged over the upper end face of the front pillar 1 and an upper end section of the rear upper beam 4, a fitting projection 10 for piling-up is arranged on an upper end face 1a of the front pillar 1, a fitting recessed section 11 for fitting the fitting projection 10 is arranged on a lower end face of the front pillar 1, the upper end face 1a of the front pillar 1 and an upper face of the rear upper beam 4 are located on the same horizontal surface, and recessed sections 12, 13 for fitting are arranged on a front end side and a rear end side of the side upper beam 5 wherein its lower surface is located on the horizontal surface. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to a nested rack that can be stacked up and down when used as a rack for storing articles and that can be nested with other racks of the same structure when not in use. Furthermore, the present invention relates to a deck apparatus formed using this rack.

As this type of conventional rack, for example, there is one described in Patent Document 1 below. This rack can be stacked up and down when used as a rack, and can store other racks of the same structure when not in use. When stacked, the load on the upper rack is reduced from the pillar to the lower rack. It is a structure that is transmitted perpendicularly to the pillars, and a deviation preventing member that prevents deviation of the stacked upper and lower racks is provided at the ends of the front pillar and the rear pillar.
JP 2001-240055 A

  The method of using this type of nested rack is broadly divided into (a) a case where it is used as a moving medium between yards like a flat pallet and used as a stacked storage shelf, in other words, a case where movement and storage are frequently repeated, (b There are three cases: a case where the rack itself hardly moves and is used instead of a fixed shelf, and a case (c) where the rack is used as a moving medium, but is stored in that state for a relatively long time once stacked.

  However, in the case of (a) above, the conventional telescoping rack has to be frequently attached and detached, and the case of (b) and (c) In such an earthquake-prone country, when an external force is applied when an earthquake occurs, the structure unique to the nested rack, that is, the top plan view shape and the front view shape of the rack are both U-shaped. Compared to non-nested racks and fixed shelves, the shaking is greater and the torsion is greater. In general, even in this type of rack, the greater the shaking or twisting caused by an earthquake or the like, the higher the risk of rack damage. In order to absorb an impact load, slight shaking or twisting is rather necessary for a structure such as a rack to avoid stress concentration. However, it is clear that shaking or twisting exceeding the limit is a major cause of rack damage. Therefore, when racks are used instead of fixed shelves or used for a relatively long time with being stacked up and down, neatly arranged nested racks are always exposed to earthquake anxieties that do not know when they will occur. Is in a state of being.

  In view of the above circumstances, the present invention focuses on the connection between racks, and when adjacent racks are arranged horizontally, adjacent side beams are simply connected to each other in the horizontal two directions (X and Y directions). In addition, when the racks are stacked up and down, the beam material of the upper rack and the beam material of the lower rack can be easily and firmly connected, thereby reducing the rack swing when an earthquake occurs, It is a main object to provide a telescopic rack that can prevent damage to stored articles. Another object of the present invention is to provide a stable mezzanine deck device that can effectively utilize the same upper space that was originally used only as a passage for a forklift or the like by using such a nested rack. There is to do.

Means for solving the above problems will be described with reference numerals of the embodiments described later. The invention according to claim 1 can be stacked up and down when the rack is used, and another rack R having the same structure when not used. Is a telescopic rack R which can be stored in a telescopic manner, and has the following requirements (1) to (4).
(1). A grid-frame-like loading floor 3 is provided on the lower end side of the four pillars of the left and right front pillars 1 and 1 and the rear pillars 2 and 2, and the inner space W between the left and right front pillars 1 and 1 is rearward. It is made wider than the outer space W1 between the columns 2 and 2.
(2) The rear upper beam 4 is installed over the upper end surfaces of the left and right rear columns 2, 2, and the side upper beam 5 is installed between the upper end side of the front column 1 and the upper surface end of the rear upper beam 4. .
(3) A stacking fitting projection 10 is provided on the upper end surface 1a of the front pillar 1, and a stacking fitting recess 11 into which the fitting projection 10 is fitted is provided on the lower end surface.
(4). The rack connecting bracket on the front end side and the rear end side of the side upper beam 5 in which the upper end surface 1a of the front pillar 1 and the upper surface of the rear upper beam 4 are positioned on the same horizontal plane and the lower surface is positioned on the horizontal plane. Engaging recesses 12 and 13 are provided for interposing.

  According to a second aspect of the present invention, in the telescoping rack according to the first aspect, when the plurality of racks R are horizontally arranged so that the side upper beams 5 are adjacent to each other, the adjacent concave recesses 12 for the adjacent side upper beams 5 are arranged. , 13 is engaged with the engaging projections 21a, 23a, 24a of the horizontal connecting fittings 21, 23, 24 to connect the side upper beams 5 to each other.

  According to a third aspect of the present invention, in the telescopic rack according to the first aspect, each of the upper rack R and the lower rack R is stacked when the other rack R is stacked upside down on the one rack R in the upright state. The engaging pieces 43 and 44 that engage with the front end side engaging concave portion 12 of the side upper beam 5 are respectively fitted to the stacking fitting projections 10 and 10 of the front column 1 of the upper rack R and the lower rack R, respectively. The rack front coupling fitting 41 having the fitting member 46 to be fitted, and the fitting member 47 and the lower rack R which are fitted from the outside to the corner portions of the side upper beam 5 and the rear upper beam 4 of the upper rack R. The upper and lower racks R, R are connected by using a rack rear connection bracket 42 having an engagement piece 48 that engages with the rear end side engagement recess 13 of the side upper beam 5 of the side upper beam 5. To do.

  According to a fourth aspect of the present invention, in the telescopic rack according to any one of the first to third aspects, the outer modulus interval W2 of the left and right vertical beams 8, 8 of the loading floor 3 is greater than the inner modulus interval W5 of the left and right side upper beams 5, 5. When the rack R is stacked up and down, both the beams 3 are placed between the vertical beam 3 of the loading floor 3 of the upper rack R and the side upper beam 5 of the lower rack R adjacent to the lower side thereof. 5, a vertical connection fitting 17 that is engaged with 5 and connects both beams 3 and 5 is interposed.

  According to a fifth aspect of the present invention, in the telescopic rack according to the fourth aspect, the vertical connecting bracket 17 is formed by fixing the lower cylindrical piece 18b to the lower end portion of the upper hook 18a that is locked to the vertical beam 8 from above. An upper locking bracket 18, a lower locking bracket 19 having a 19 b piece fixed to the lower end of a lower hook 19 a locked from below with respect to the side upper beam 5, and lower portions of both locking brackets 18, 19 It is characterized by comprising a connecting pin 20 that is fitted over the cylindrical piece 18b and the upper cylindrical piece 19b.

  According to a sixth aspect of the present invention, the pair of nested racks R, R according to any one of the first to fifth aspects are opposed to each other at a predetermined interval so that the front portions thereof face each other. The deck device is formed by mounting a lattice frame-shaped rack side deck 25 on the rack and bridging a lattice frame-shaped main body deck 26 between the front end portions of both rack-side decks 25, 25. Engaging projections 30 respectively projecting from the lower surfaces of the left and right end portions of the front end side of the deck 25 are engaged with the front end side engaging recesses 12 of the side upper beams 5 of the racks R, so The fitting members 37 respectively projecting on the lower surfaces of the left and right end portions of the racks R are fitted into the stacking fitting protrusions 10 on the front column upper end surface 1a of each rack R.

  The effect of the invention by the above-described solution means will be described with reference numerals in the embodiments described later. According to the nested rack R of the invention according to claim 1, the plurality of racks R are separated from each other by the side upper beams 5. Furthermore, when horizontally arranging so as to be adjacent to each other in the front-rear direction, or when stacking other racks in an upright state on one rack in an upright state, for engaging the front end side and rear end side of the side upper beam 5 By interposing the horizontal coupling metal fittings and auxiliary metal fittings in the recesses 12 and 13, it is possible to easily connect without using troublesome tools such as bolts, and the racks R can be firmly connected to each other. The shaking of the rack at the time of occurrence can be reduced, and the rack itself and stored articles can be prevented from being damaged.

  According to the second aspect of the present invention, when the plurality of racks R are horizontally arranged so that the side upper beams 5 are adjacent to each other, the engagement concave portions 12 provided at the front end portion and the rear end portion of each side upper beam 5 are provided. , 13 to engage the engaging projections 21a, 23a, 24a of the horizontal couplers 21, 23, 24, and use a troublesome tool such as a bolt between the adjacent side upper beams 5 The racks R can be firmly connected to each other, the racks can be prevented from shaking when an earthquake occurs, and the rack itself and stored items can be prevented from being damaged.

  According to the third aspect of the present invention, when other racks R having the same structure are stacked on one rack R in an upright state, the racks R and R are stacked between the front end portions and the rear end portions thereof. By interposing the rack front connection bracket 41 and the rack rear connection bracket 42, the upper and lower racks R, R can be easily and quickly connected firmly without using troublesome tools such as bolts. At the same time, it is possible to easily cope with fluctuations in the height of products stored in the rack R.

  According to the fourth aspect of the present invention, the rack R is stacked vertically by making the outer space W2 between the left and right vertical beams 8, 8 of the loading floor 3 smaller than the inner space W5 between the left and right side upper beams 5, 5. Sometimes, a horizontal interval S is generated between the vertical beam 3 of the loading floor 3 of the upper rack R and the side upper beam 5 of the lower rack R adjacent to the lower side of the loading rack 3. The vertical connecting bracket 17 for connecting the beams 3 and 5 can be interposed. Therefore, the vertical connecting bracket 17 can easily connect the upper and lower racks R without using a troublesome tool such as a bolt. The Rs can be firmly connected to each other, thereby enhancing the integrity of the stacked racks R and ensuring the safety of rack storage. In addition, the combined use of the horizontal connecting brackets 21, 23, and 24 can enhance the integrity of the entire array rack.

  According to the fifth aspect of the invention, the vertical connecting bracket 17 includes the upper locking bracket 18 in which the lower cylindrical piece 18b is fixed to the lower end portion of the upper hook 18a, and the lower portion in which the 19b piece is fixed to the lower end portion of the lower hook 19a. It consists of a locking metal piece 19 and a connecting pin 20 that is fitted and inserted over the lower cylinder piece 18b and the upper cylinder piece 19b of both the locking metal pieces 18, 19, and the vertical connecting metal piece 17 has a simple structure. Since it is easy to manufacture, it can be provided at low cost, and can be removed and removed very easily without using any bolts or the like.

  According to the sixth aspect of the present invention, it is possible to obtain a stable mezzanine deck device by simply adding the rack side deck 25 and the main body deck 26 to the telescopic rack R according to any one of the first to fourth aspects. In this erection operation, the engaging projections 30 projecting from the lower surfaces of the left and right ends of the front end side of each rack side deck 25 are connected to the front end side of the side upper beam 5 of each rack R. The fitting member 37 engaged with the combination recess 12 and projecting from the lower surfaces of the left and right end portions on the front and rear end sides of the main body deck 26 is fitted to the stacking fitting protrusions 10 on the front column upper end surface 1a of each rack R. Thus, the work can be performed quickly and easily with high efficiency.

  A preferred embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing a telescopic rack R according to the present invention, and FIG. 2 (a) is a sectional view taken along line XX of FIG. 3B is a front view of the rack R, FIG. 3A is a side view of the rack R, FIG. 4B is a rear view, and FIG. 4A is an arrow A in FIG. (B) is a plan view, (c) is a left side view, (a) in FIG. 5 is an enlarged view of the part indicated by arrow B in FIG. A plan view, (c) is a right side view. In FIG. 1, 1 is the left and right front pillars, 2 is the left and right rear pillars, 3 is a lattice frame-shaped loading floor provided at the lower end of the four pillars 1, 1, 2, 2, and 4 is the left and right rear pillars. Rear upper beams 5 horizontally installed over the upper end surfaces of the columns 2, 2 are side upper beams installed horizontally over the upper end portion of the front column 1 and the upper end surface portion of the rear upper beam 4.

  The loading floor 3 is constituted by front and rear horizontal beams 6 and 7, left and right vertical beams 8 and 8, and a grid-assembled intermediate beam 9, and the intermediate beam 9 includes vertical and horizontal grid members 9 a and 9 b. The front column 1, the rear column 2, the rear upper beam 4, the side upper beam 5, the front and rear horizontal beams 6, 7, the left and right vertical beams 8, 8 and the intermediate beam 9 (lattice members 9a, 9b) are respectively the same thickness. Now, it consists of a square steel pipe with a square cross section.

  As shown in FIG. 1 and FIG. 2, if the inner distance between the left and right front pillars 1, 1 is W and the outer distance between the left and right rear pillars 2, 2 is W1, W> W1 and W is W1. Slightly wider. This is a condition that allows the rack R to be nested (nested) with respect to a rack having the same structure. Further, if the outer distance W2 between the left and right vertical beams 8 and 8 of the loading floor 3 is W3 and the inner distance between the left and right rear pillars 2 and 2 is W3, W3 <W2 and W2 is slightly wider than W3. W4 is the outer modulus interval between the left and right front pillars 1,1. If the inner normal interval between the left and right side upper beams 5 and 5 is W5, the outer normal interval W2 between the left and right vertical beams 8 and 8 of the loading floor 3 is narrower than W5, and W2 <W5. The inner space W5 between the left and right side upper beams 5, 5 is substantially the same as the inner space W between the left and right front columns 1, 1.

  Further, as shown in FIGS. 1 and 4, a stacking fitting protrusion 10 protrudes from the upper end surface 1a of the front pillar 1, and the stacking protrusion 10 has a short cylindrical upper half portion. The half is formed in a hemispherical shape, and the protruding height from the front column upper end surface 1a is equal to the upper surface 5a of the side upper beam 5 as shown in FIGS. 4 (a) and 4 (c). Slightly lower than. Note that the stacking fitting recess 11 into which the stacking fitting protrusion 10 is fitted, when the front column 1 is made of a hollow material such as a square steel pipe as in this embodiment, remains in the lower end portion of the front column 1 as it is. It can be a fitting recess (shown by dotted lines in FIGS. 1 and 2), and when the front pillar 1 is made of a solid material, a recess may be formed at the lower end thereof.

  The upper end surface 1a of the front column 1 on which the stacking fitting protrusions 10 are projected and the upper surface 4a of the rear upper beam 4 are positioned on the same horizontal plane, and the lower surface 5b of the side upper beam 5 is positioned on this horizontal plane. However, on the front end side of the side upper beam 5, as shown in FIGS. 4 (a) and 4 (b), the required space portion K is left between the rear side of the stacking fitting projections 10 and the front end side. An engagement recess 12 is provided, and a rear end side engagement recess 13 is provided on the rear end side of the side upper beam 5 between the upper surface 4a end of the rear upper beam 4 as shown in FIGS. It has been.

  As shown in FIG. 4, the front end side engaging recess 12 is made of, for example, a square steel pipe 12 a having a square cross section, and is fixed to the front end of the side upper beam 5 and attached to the upper rear end of the front column 1. Attached together with the front end of the side upper beam 5 on the mounting base piece 14. The mounting base piece 14 is formed in a downward U-shape, and a drain hole 14o is provided in the upper wall portion 14a of the mounting base piece 14 located at the bottom of the square steel pipe 12a.

  Further, as shown in FIG. 5, the rear end side engaging recess 13 is made of, for example, a rectangular steel pipe 13 a having a rectangular cross section smaller than the front end side engaging recess 12, and is fixed to the rear end of the side upper beam 5. At the same time, it is fixed to the end of the upper surface 4 a of the rear upper beam 4 together with the rear end of the side upper beam 5. As shown to (a) of FIG. 5, the drain hole 13o is provided in the lower end part of the square steel pipe material 13a.

  Further, as shown in FIG. 5, the auxiliary plate 15 is fixed from the rear end surface of the square steel pipe member 13 a forming the rear end side engaging concave portion 13 to the back surface 4 c of the rear upper beam 4, and inside the auxiliary plate 15. A stacking column lower end fitting portion 16 is formed at the intersection between the side upper beam 5 and the rear upper beam 4, and the auxiliary plate 15 is provided on the back surface of the stacking column lower end fitting portion 16. It is a stopper that regulates the position. When the racks R are stacked, the lower end portion of the rear column 2 of the upper rack R is fitted to the stacking column lower end fitting portion 16 and supported by the upper surface 4 a of the rear upper beam 4. In FIG. 5A, reference numeral 39 denotes a closing plate for closing the opening end face of the rear upper beam 4.

  FIG. 6 shows a state in which another rack R having the same structure is accommodated in a single rack R configured as described above. As described with reference to FIGS. 1 and 2, this is because the inner space W between the left and right front columns 1 and 1 is slightly larger than the outer space W1 between the left and right rear columns 2 and 2.

  FIG. 7 shows a state in which the racks R are stacked up and down. In this stacked state, the stacking fitting protrusion 10 at the upper end of the front pillar 1 in the lower rack R fits into the stacking recess 11 at the lower end of the front pillar 1 in the upper rack R, and the upper rack side. The lower end portion of the rear column 2 in the rack R is fitted to a stacking column lower end portion fitting portion 16 formed at a corner portion of the side upper beam 5 and the rear upper beam 4 in the lower rack R, and the rear upper portion Since the upper rack R is supported by the upper surface 4a of the beam 4 so that the movement in the front-rear and left-right directions, that is, the horizontal direction is restricted, the upper rack R falls down even if such horizontal vibration is applied. Very unlikely to do.

  Further, in the upper and lower stacking racks R, R shown in FIG. 7, the vertical beams 8 of the loading floor 3 of the upper rack R and the lower rack R adjacent to the lower rack R are located at the positions indicated by arrows C and D in FIG. A vertical connecting bracket 17 that connects the side upper beams 5 to restrict vertical movement is provided in the horizontal direction between the vertical beams 8 on the loading floor 3 side and the side upper beams 5 located obliquely below the vertical beams 8. The gap S is interposed between the vertical beam 8 and the side upper beam 5 by using the interval S (see FIG. 8A).

  As shown in FIG. 10, the vertical connecting bracket 17 includes an upper locking bracket 18 formed by fixing a lower cylindrical piece 18b to a lower end portion of an upper hook 18a locked from above with respect to the vertical beam 8. As shown in FIG. 11, the lower locking bracket 19 is formed by fixing the upper cylindrical piece 19b to the lower end of the lower hook 19a locked from below with respect to the side upper beam 5, and as shown in FIG. It consists of a connecting pin 20 that is inserted between the lower cylinder piece 18b and the upper cylinder piece 19b of the locking metal pieces 18 and 19, and the upper end face 18bo and the lower part of the lower cylinder piece 18b of the upper locking metal piece 18 are connected. The lower end surface 19bo of the upper cylindrical piece 19b of the fastener 19 has a corresponding slope. The connecting pin 20 has a handle 20a.

  In using the vertical connecting bracket 17, as shown in FIGS. 8B, 8C and 8D, the upper hook 18a of the upper locking bracket 18 is moved upward with respect to the vertical beam 8 of the upper rack R. After further locking, the upper cylindrical piece 19b is connected to the lower cylindrical piece 18b of the upper locking bracket 18 in a state where the lower hook 19a of the lower locking bracket 19 is locked to the side upper beam 5 of the lower rack R from below. Then, the connecting pin 20 may be inserted over the upper and lower cylinder pieces 18b and 19b. At this time, since the opposing contact surfaces of the upper and lower cylinder pieces 18b and 19b are inclined, a clamping force can be generated between the upper and lower sides by inserting the connecting pin 20, which is effective as a connecting bracket, It is possible to prevent the mounting failure due to the manufacturing error of R or the vertical connecting bracket 17.

  FIG. 12 shows a state in which a plurality of nested racks R are arranged in the left-right horizontal direction so that the side upper beams 5 are adjacent to each other. In use in this horizontal arrangement, the front end side engaging concave portions 12 and 12 adjacent on the front end side of the adjacent side upper beams 5 and 5 are engaged with the engaging convex portions 22 and 22 of the front end side horizontal coupling fitting 21. Further, the rear end side engaging concave portions 13 and 13 adjacent on the rear end side of the adjacent side upper beams 5 and 5 are engaged with the engaging convex portions 22 and 22 of the rear end side horizontal connection fitting 23 to be adjacent to each other. Connect the side upper beams 5 and 5 to each other.

  13 (a) is an enlarged plan view of a portion indicated by an arrow E in FIG. 12, and shows the front end side engaging recesses 12 and 12 adjacent on the front end side of the adjacent side upper beams 5 and 5, and FIG. The front end side horizontal connection metal fitting 21 is a front view, (c) is a side view. The front end side horizontal coupling fitting 21 is provided on the lower end side of the fitting main body 21o at the position where it can engage with the adjacent front end engagement recesses 12 and 12 of the adjacent side upper beams 5 and 5. The handle 21b is attached to the upper end of the metal fitting body 21o. In (a) of the figure, the state where the engaging protrusions 21a, 21a of the horizontal connecting fitting 21 are engaged with the adjacent front end engaging recesses 12, 12 of the adjacent side upper beams 5, 5 is indicated by a one-dot chain line. Show.

  14 (a) is an enlarged plan view of the portion indicated by the arrow F in FIG. 12, showing the rear end side engagement recesses 13 and 13 adjacent on the rear end side of the adjacent side upper beams 5 and 5, ) Is a front view showing the rear end side horizontal connection fitting 23, (c) is a plan view, and (d) is a side view. The rear end side horizontal connecting metal fitting 23 has an engaging convex portion 23a on the lower end side of the metal fitting main body 23o at a position engageable with the adjacent rear end side engaging concave portions 13, 13 of the adjacent side upper beams 5, 5. 23a projectingly, and a handle 23b is attached to the upper end of the metal fitting body 23o.

  In FIG. 15A, a plurality of nested racks R are arranged in the horizontal and horizontal directions so that the side upper beams 5 are adjacent to each other, and the racks R are arranged back to back in the horizontal and front directions. (B) is a front view of the horizontal connecting bracket 24 applied to the four rear end side engaging recesses 13, 13, 13, 13 adjacent to the left and right and front and rear, and (c) is a side view. , (D) are plan views. This horizontal connecting bracket 24 is located on the lower end side of the bracket main body 24o, on the rear end side adjacent to the left and right and front and rear sides of the side upper beams 5, 5, 5 and 5 adjacent to the left and right and front and rear of the rack R arranged back and forth. Four engaging convex portions 24a, 24a, 24a, 24a are projected from positions that can be engaged with the engaging concave portions 13, 13, 13, 13, and a handle 24b is attached to the upper end portion of the metal fitting body 24o. .

  As described above, when the plurality of racks R are horizontally arranged so that the side upper beams 5 are adjacent to each other on the left and right, and front and rear, the engagement recesses 12 and 13 provided at the front end portion and the rear end portion of each side upper beam 5 are provided. , By engaging the engaging projections 21a, 23a, 24a of the horizontal couplers 21, 23, 24 as described above, the adjacent side upper beams 5 can be connected to each other with a troublesome tool such as a bolt. It can be easily connected without using it, and the horizontally arranged racks R can be firmly connected to each other, thereby reducing the shaking of the rack when an earthquake occurs and preventing damage to the rack itself and stored items. can do. The horizontal couplers 21, 23, 24 as described above can be provided at low cost because the structure is simple and the manufacture is easy.

  FIG. 16 shows a case where another rack R having the same structure is stacked and used on one rack R in an upright state, and (a) shows that the upper and lower racks R and R are separated. A perspective view of the state, (b) is a perspective view of the state where the upper and lower racks R, R are connected. In use in this state, the rack front connecting bracket 41 and the rack rear connecting bracket 42 are connected between the front end side engaging recesses 12 and 12 and between the rear end side engaging recesses 13 and 13 of the upper and lower racks R and R. The upper and lower racks R and R are connected to each other.

  As can be seen from FIG. 17 (a) and FIG. 19 (a), the rack front coupling fitting 41 is provided with the front end side engaging recesses 12 of the side upper beams 5 and 5 of the upper rack R and the lower rack R, respectively. , 12 are respectively engaged with upper and lower engaging pieces 43, 44 made of, for example, a U-shaped piece, a mounting plate 45 for fixing the upper and lower engaging pieces 43, 44 on both upper and lower sides, an upper rack R and a lower rack R Each of the front pillars is provided with a fitting member 46 made of, for example, a square steel pipe whose upper and lower ends are fitted to the stacking fitting protrusions 10 and 10, respectively, and one end side bent end portion 45a of the mounting plate 45 is provided. It is fixed to the side surface of the fitting member 46.

  As can be seen from FIGS. 17 (b) and 19 (b), the rack rear connecting bracket 42 is fitted to the corners of the side upper beam 5 and the rear upper beam 4 of the upper rack R from the outside. The fitting member 47 is integrally provided with an engagement piece 48 made of, for example, a U-shaped piece that engages with the rear end side engagement recess 13 of the side upper beam 5 of the lower rack R. Are in contact with the auxiliary plate 15 at the corner and the outer surface and lower surface of the rear end of the side upper beam 5 of the upper rack R.

  Thus, when the rack front coupling bracket 41 is used, the upper and lower engaging pieces 43 and 44 are respectively connected to the upper upper beam R and the lower rack R from the state shown in FIG. 5 are engaged with the front end side engaging recesses 12 and 12, respectively, and the upper and lower ends of the fitting member 46 are fitted into the stacking fitting protrusions 10 and 10 of the front column of the upper rack R and the lower rack R, respectively. As a result, the state shown in FIG. 18 (a) is obtained, and the use of the rack rear connection bracket 42 is performed by moving the engagement piece 48 of the lower rack R from the state shown in FIG. 17 (b). By engaging the rear end side engaging recess 13 of the side upper beam 5 and fitting the fitting member 47 into the corner portion of the side upper beam 5 and the rear upper beam 4 of the upper rack R from the outside, The state is as shown in FIG.

  Thus, when stacking other racks R of the same structure on one rack R in the upright state in the upright state, the front end side engagement recesses 12 and 12 of the upper and lower racks R and R and the rear end side engagement are used. By interposing the rack front connecting bracket 41 and the rack rear connecting bracket 42 between the recesses 13 and 13, the upper and lower racks R and R can be easily and quickly made strong without using troublesome tools such as bolts. And can easily cope with fluctuations in the height of products stored in the rack R.

  Next, a deck device using the above-described telescopic rack R will be described with reference to FIGS.

20 and FIG. 21, the assembly method of the deck device will be schematically described. First, as shown in FIGS. 20 (a) and 20 (b) , a pair of nested racks R and R are opposed to each other on the front side. As shown in FIGS. 4C and 4D, the rack-side decks 25 and 25 each having a lattice frame are mounted on the upper portions of the racks R and R, respectively. Thereafter, as shown in FIGS. 21 (a) and 21 (b), a lattice frame-shaped main body deck 26 is bridged between the front ends of the rack side decks 25 and 25, and as shown in FIG. 21 (c). It is assembled into a mezzanine deck device. Although not shown in the drawings, a floor plate of approximately the same size is attached to the upper surface of each of the lattice frame-shaped rack side deck 25 and the lattice frame-shaped main body deck 26.

  In the deck device, the rack R is stacked in at least two stages as shown in FIG. 21 (c), but in FIG. 16 (d) and FIG. 17 (b), one stage is used to simplify the drawing. A rack R is shown. The time when the rack-side deck 25 is mounted on the upper part of the uppermost rack R may be after the racks R are stacked in a predetermined plurality of stages or before that.

  The assembly structure of the deck device will be described in detail. First, as shown in FIGS. 22 (a) to 22 (c), the rack side deck 25 has a front frame 26, a rear frame 27, left and right frames 28, 28, and a lattice. The intermediate frame 29 is formed in a lattice frame shape. The intermediate lattice frame 29 is composed of a vertical member 29a and a horizontal member 29b, and the left and right ends of the front frame 26 are upper beams 5 on both the left and right sides of the rack R. 5, the left and right frames 28, 28 are positioned so as to overlap the upper beams 5, 5 on both the left and right sides of the rack R, and the rear frame 29 is a rack. Corresponds to the rear upper beam 4 of R.

  Further, on the lower surfaces of the left and right end portions of the front frame 26, an engagement convex portion 30 that engages with the front end side engagement concave portion 12 of the side upper beam 5 of the rack R is projected, and in the vicinity of the engagement convex portion 30. Guides fitting of a fitting member 37 of the main body deck 26, which will be described later, into the stacking fitting protrusion 10 of the front pillar upper end surface 1a of the rack R, and the main body deck 26 falls off due to some external force. In order to prevent this, a guide / drop-off preventing member 31 having a substantially L shape in plan view is provided.

  Further, as shown in FIG. 22A, the corner portions of the rear frame 27 and the left and right frames 28, 28 of the rack side deck 25 are formed on the side upper beams 5 when the rack side deck 25 is placed on the rack R. The rear-end-side engaging recess 13 is cut away so as not to be blocked, and the cut-out portion is indicated by n. After the deck arrangement is completed in this cut-out portion n, a deck horizontal connection fitting (not shown) is inserted, and the rack R is connected. Further, at the left and right ends of the rear frame 27 of the rack-side deck 25, when the rack-side deck 25 is placed on the rack R, the rack-side deck 25 enters the rear upper beam 4 of the rack R and falls off the rack-side deck 25. A stopper 32 is provided to project downward.

  As shown in FIGS. 24A to 24C, the main body deck 26 is formed in a lattice frame shape by a front frame 33, a rear frame 34, left and right frames 35, 35, and a lattice-shaped intermediate frame 36. Fitting members 37, 37 that are fitted to the stacking fitting protrusions 10 that protrude from the upper end surface 1 a of the front pillar 1 of the rack R are protruded from the lower left and right ends of each frame 35. Each fitting member 37 is formed of a rectangular tube-like piece that forms a recess that can be fitted to the stacking fitting protrusion 10 as shown in FIG. The lattice-shaped intermediate frame 36 is composed of vertical members 36a and cross members 36b. Further, a reinforcing frame 38 is attached to the lower surface side of each of the left and right frames 35, 35.

  FIG. 25 shows the engagement protrusions 30 protruding from the lower surfaces of the left and right ends of the front end side of the rack side deck 25 when the rack side deck 25 is placed on the top of the rack R. The engagement recesses that protrude from the bottom surfaces of the left and right end portions of the front and rear ends of the main body deck 26 when the main body deck 26 is bridged between the front end portions of the rack side decks 25 and 25, respectively. 37 shows a state in which 37 is fitted to the stacking fitting protrusion 10 on the front pillar upper end face 1a of each rack R.

  In the mezzanine deck device assembled as described above, the rack side decks 25 and 25 mounted on the upper portions of the racks R and R, and the front end portions of the rack side decks 25 and 25, respectively. The main body deck 26 that is bridged between the two is used as a mezzanine work floor or an article storage floor. Since each rack-side deck 25 and the main body deck 26 have a lattice frame shape, as described above, a floor board is usually attached to these upper surfaces. Further, the lower space portion of the main body deck 26 is used as a passage. In addition, when the installation of the deck device is completed, as can be seen from FIGS. 21 (a) and 21 (b), a series of work floors or article storage in which no gap is generated between the rack side deck 25 and the main body deck 26. A mezzanine deck can be formed as a floor. Further, it is possible to change to a three-tier rack storage yard simply by removing the main body deck 26, which can greatly contribute to the expansion of the use of the rack R.

It is a perspective view which shows the telescopic rack which concerns on this invention. 1A is a cross-sectional view taken along the line XX in FIG. 1, and FIG. (a) is a side view of the rack R, and (b) is a rear view. (a) is an enlarged view of a portion indicated by an arrow A in FIG. 3 (a), (b) is a plan view, and (c) is a left side view. (a) is an enlarged view of a portion indicated by arrow B in (a) of FIG. 3, (b) is a plan view, and (c) is a right side view. It is a perspective view which shows the state which accommodated the other rack of the same structure in the one rack in the nested type. It is a perspective view which shows the state which stacked the rack up and down. (a)-(d) is explanatory drawing explaining the state where a vertical connection metal fitting is interposed between the vertical beam of the loading floor of the upper stage rack, and the side upper beam of the lower stage rack adjacent to the lower side of this. is there. (a) is a side view showing a connecting pin of a vertical connecting fitting, and (b) is a front view. FIG. 4 is a front view showing an upper locking metal fitting of the vertical connecting metal fitting, (b) is a plan view, and (c) is a side view. (a) is a front view which shows a lower latch metal fitting, (b) is a side view. It is a perspective view which shows the state which arranges and uses several nested racks in the left-right horizontal direction so that the side upper beams may adjoin. (a) is an enlarged plan view of a portion indicated by arrow E in FIG. 12, showing adjacent front-end-side engaging recesses on the adjacent side upper beam front end side, (b) is a front view showing a front-end side horizontal coupling fitting, (c) is a side view. (a) is an enlarged plan view of the portion indicated by arrow F in FIG. 12, (b) is a front view showing the rear end side horizontal coupling fitting, (c) is a plan view, and (d) is a side view. (a) is a plan view showing a state in which a plurality of nested racks are used in a horizontal horizontal direction and a front-rear horizontal direction so that side upper beams are adjacent to each other. FIG. 4 is a front view of a horizontal coupling fitting applied to the end-side engagement recess, (c) is a side view, and (d) is a plan view. The case where other racks R are stacked and used upside down on one rack in an upright state is shown, (a) is a perspective view with both the upper and lower racks separated, and (b) is the upper and lower racks. It is a perspective view of the connected state. (a) is an enlarged view of a portion indicated by an arrow H in FIG. 16 (a), and (b) is an enlarged view of a portion indicated by an arrow I in FIG. 16 (a). FIG. 17A is an enlarged view of a portion indicated by an arrow J in FIG. 16B, and FIG. 17B is an enlarged view of a portion indicated by an arrow K in FIG. (a) is a perspective view of a rack front connection fitting, and (b) is a perspective view of a rack rear connection fitting. (A) is a plan view of a pair of racks facing each other, (b) is a side view of both racks, and (c) is a side of a pair of racks mounted on both racks. A plan view of the deck, (d) is a side view of a state in which the rack side deck is mounted on both racks. (a) is a plan view of a state in which a rack frame deck is bridged between the front ends of both rack side decks after mounting rack side decks on both racks, (b) is a side view thereof, (c) FIG. 4 is a side view of the assembled state. A plan view of the rack side deck, (b) is a front view, and (c) is a side view. (a) is an enlarged perspective view of the part indicated by arrow G in FIG. 22, (b) is a front view of the part, and (c) is a plan view of the part. The main body deck is a plan view, (b) is a front view, and (c) is a side view. The engaging protrusions that protrude from the lower surfaces of the left and right ends of the front deck side of the rack deck are engaged with the front end engaging recesses of the rack side upper beam, and the lower surfaces of the left and right ends of the main deck. It is a description perspective view which shows the state which fits the provided fitting recessed part to the fitting protrusion for stacking of the front pillar upper end surface of each rack.

Explanation of symbols

R Nested rack 1 Front pillar 2 Rear pillar 3 Loading floor 4 Rear upper beam 5 Side upper beam 6 Front horizontal beam 7 on the loading floor Rear horizontal beam 8 on the loading floor 10 Vertical beam 10 on the loading floor Stacking projection 11 Engaging recess 12 Front end side engaging recess 13 Rear end side engaging recess 17 Vertical connecting brackets 21, 23 Horizontal connecting bracket 25 Rack side deck 26 Main body deck 30 Engaging convex portion 37 of main body deck Fitting concave portion 41 of main body deck Rack front connection Bracket 42 Rack rear coupling bracket

Claims (6)

Nested racks that can be stacked one above the other when using racks, and can be stored in a nested manner when other racks are not used, and satisfy the following requirements (1) to (4).
(1) A grid frame-like loading floor is provided on the lower end side of the four pillars of the left and right front pillars and the rear pillars, and the internal spacing of the left and right front pillars is wider than the external spacing of the left and right rear pillars.
(2) A rear upper beam is constructed over the upper end surfaces of the left and right rear columns, and a side upper beam is constructed between the front column upper end side and the upper surface end of the rear upper beam.
(3) A stacking fitting protrusion is provided on the upper end surface of the front pillar, and a stacking fitting recess for fitting the fitting protrusion is provided on the lower end surface.
(4) The upper end surface of the front pillar and the upper surface of the rear upper beam are located on the same horizontal plane, and rack-mounting brackets are interposed on the front end side and rear end side of the side upper beam where the lower surface is positioned on this horizontal plane. An engaging recess is provided.   When multiple racks are arranged horizontally so that the side upper beams are adjacent, the side upper beams are connected by engaging the engaging projections of the horizontal coupling fittings with the adjacent engaging recesses of the adjacent side upper beams. The telescopic rack according to claim 1, wherein   When stacking other racks in an upright state on one rack in an upright state, the upper piece side and the engagement piece that respectively engage with the front end side engagement recesses of the upper side beams of the upper stage rack and the lower stage rack, respectively. Rack front connection fittings provided with fitting members that respectively fit the stacking projections for stacking the front pillars of the rack and the lower rack R, and the corner portions of the side upper and rear upper beams of the upper rack The upper and lower racks are connected to each other using a rack rear connecting bracket that includes a fitting member that is fitted to the outer side of the lower rack R and an engagement piece that engages with a rear end engagement recess on the side upper beam of the lower rack R. The nested rack according to claim 1, which is configured as described above.   When the vertical spacing of the left and right vertical beams on the loading floor is narrower than the inner spacing of the left and right side upper beams, and the racks are stacked up and down, the vertical beams on the loading floor of the upper rack and the lower side that is diagonally below this The telescopic rack according to any one of claims 1 to 3, wherein a vertical coupling fitting is provided between the side upper beams of the rack and the beams are engaged with each other to connect the beams.   The vertical connecting bracket includes an upper locking bracket formed by fixing a lower cylindrical piece to a lower end portion of an upper hook locked from above with respect to the vertical beam, and a lower hook locked from below with respect to the side upper beam. 5. A telescoping type according to claim 4, comprising: a lower locking bracket formed by adhering an upper cylindrical piece to the lower end portion of each of the first and second locking brackets; and a connecting pin that is fitted and inserted between the lower cylindrical piece and the upper cylindrical piece of both locking brackets. rack. The pair of nested racks according to any one of claims 1 to 5 are opposed to each other with a predetermined interval so that the front sides thereof face each other, and a rack-side rack-side deck is mounted on the top of each rack. , A deck device formed by bridging a lattice frame-shaped main body deck between the front end portions of both rack side decks,
Engagement protrusions projecting from the lower surfaces of the left and right end portions on the front end side of each rack side deck are engaged with the front end side engagement recesses of the side upper beams of each rack, and left and right ends on the front and rear end sides of the main deck. The deck apparatus which fitted the fitting member which each protruded on the lower surface of a part to the fitting protrusion for stacking of the front pillar upper end surface of each rack.

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