JP2015044646A - Rack - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rack having a high cargo collapse prevention effect in earthquake occurrence.SOLUTION: A rack 3 in which a cargo W is put and taken out by forking operation from a cargo loading operation passage 2 is configured so that a left and right pair of attachment plate parts 15a projecting upward of a cargo support surface 7 in a cargo support space 1 is disposed on an end part of the cargo loading operation passage 2 side of the respective cargo support space. On the cargo support space 1 side of the left and right pair of the attachment plate parts 15a, a stopper 14 formed of an impact absorption elastic material is provided, and when the cargo W stored in the cargo support space 1 slides and moves to the cargo loading operation passage 2 side on the cargo support surface 7, two, left and right, points of the cargo W are received by the stopper.

Description

  The present invention relates to a rack in which loads are loaded and unloaded by a forking operation from a load transfer operation path.

  In a rack installed adjacent to the load transfer work path, for example, a rack used in an automatic warehouse, a loading / unloading traveling body capable of traveling along the rack in the load transfer work path is used together. Racking by a forking operation of a load transfer fork which can move horizontally on and off the lifting carriage provided on the traveling body, that is, a forking operation consisting of a combination of a horizontal fork movement and a vertical lifting movement of the fork. Loads are taken in and out of the respective load support spaces that are three-dimensionally divided inside. Also, in a rack in which a forklift truck is used for loading and unloading, the load is loaded on a pallet, and each fork that is three-dimensionally divided in the rack by the forking operation of the fork inserted into the fork insertion hole of the pallet. A load is taken in and out of the load support space together with the pallet. In such a rack, as described in Patent Document 1, it has only been considered to provide a stopper for stopping the load (pallet) on the back side of each load storage section.

Japanese Utility Model Publication No. 63-16649

  In other words, in a rack where loads are loaded and unloaded by a forking operation from the load transfer operation path, when the load stored in the load support space is subjected to external force in the longitudinal direction in the event of an earthquake, etc. , Accidents such as sliding to the load transfer work passage and falling into the load transfer work passage, or after the loading / unloading traveling body or forklift is overhanging in the load transfer work passage No measures were taken to avoid situations that would obstruct traffic. Of course, it is conceivable to place a stopper for loading stop provided on the back side of the load storage section at the end of the load storage section on the load transfer work passage side. In the means of diverting the stopper for stopper and the stopper for stopper made of hard rubber as it is, especially when it is a palletized load with multiple loads on the pallet, it slides to the load transfer work passage side. When the pallet collides with the stopper, the loaded load may move to the load transfer work passage side due to inertia and cause the collapse of the load, and the expected effect cannot be expected.

  The present invention proposes a rack that can solve the conventional problems as described above, and the rack according to the present invention is provided in order to facilitate understanding of the relationship with the embodiments described later. When the reference numerals used in the description of the embodiments are shown in parentheses, each load support in the rack (3) where the load (W) is taken in and out by the forking operation from the load transfer work path (2). A pair of left and right mounting plate portions (15a) protruding above the load support surface (7) in the load support space (1) is disposed at the end of the space (1) on the load transfer work passage (2) side. A stopper (14) made of an impact-absorbing elastic material is attached to the load support space (1) side of the pair of left and right mounting plates (15a), and the load stored in the load support space (1) is attached. When (W) slides on the load carrying surface (7) toward the load transfer work path (2), the left and right two portions of the load (W) are received by the stopper (14). It has a configuration that is.

  According to the configuration of the present invention described above, when the load stored in the load support space slides on the load transfer work path side on the load support surface in the event of an earthquake or the like, the load is a pair of left and right shock absorbers. It is restrained by coming into contact with a stopper made of an elastic material and is prevented from falling into the load transfer work passage as it is. Moreover, since the stopper is made of a shock absorbing elastic material, the impact when the load collides with the pair of left and right stoppers is absorbed by the compression deformation of the stopper, and the palletized load as described above. However, when a pallet that slides toward the load transfer work path collides with the stopper, it is less likely that the loaded load moves to the load transfer work path due to inertia and causes load collapse. As described above, the configuration of the present invention greatly improves the safety of the rack when an earthquake occurs.

  Incidentally, the load supporting surface (7) of the load supporting space (1) is directed to the load supporting space (1) side from the columns (4a to 4d) erected outside the four corners of the load supporting space (1). A rack composed of a pair of left and right load supporting members (6a, 6b) supported by protruding supporting arm members (5a to 5d), that is, a so-called automatic in combination with a loading / unloading traveling body. When the present invention is applied to a rack that constitutes a warehouse, the front side that supports the ends of the pair of left and right load support members (6a, 6b) on the load transfer work path (2) side To the pair of left and right support arm members (5a, 5b), a mounting plate (15) extending horizontally toward the load transfer work path (2) at a position not higher than the load support surface (7) is attached, The mounting plate portion (15a) can be bent continuously from the front end of the pair of left and right mounting plates (15). According to this configuration, the mounting plate portion is attached to the mounting plate portion as compared with the case where the mounting plate portion is directly connected upward from the end portion on the load transfer work passage side of the pair of left and right load supporting members. When a load collides with the stopper, the mounting plate in the front-rear depth direction in which the mounting plate portion is connected is easily rocked and deformed downward. Can be absorbed and relaxed, and the effect of preventing the collapse of cargo can be further enhanced. Moreover, the improvement which applies the structure of this invention to the conventional rack can also be performed easily.

  In the case of adopting the above configuration, the pair of left and right mounting plates (15) includes an inner end vertical plate portion (15b) bent vertically downward from an inner end thereof, and the load supporting member (6a, 6b). ) Are attached to the vertical plate portion (9) of the supporting arm member (5a, 5b) with one fastening device (16), and are inserted into the lower side of the horizontal plate portion (11). A horizontal mounting plate (15) from the end vertical plate portion (15b) to the mounting plate portion (15a) at the front end faces the lower side of the horizontal plate portion (11) of the load supporting member (6a, 6b). It can be configured to be in contact. According to this configuration, although the mounting plate that supports the stopper can be easily and easily mounted on the rack side with a single fastener (bolt nut, rivet, etc.), The inconvenience that the mounting plate rotates around and the position of the stopper changes unexpectedly can be avoided.

  In addition, the load support surface (22) of the load support space (21) is a rack composed of a pair of front and rear beam members (23a, 23b) horizontally installed between the columns along the frontage direction, that is, palletizing. When the rack is such that the loaded load is taken in and out by a forklift, the beam material (23a, 23b) adjacent to the load transfer work path (26A, 26B) is not higher than the load support surface (22). A pair of left and right mounting plates (15) extending horizontally toward the load transfer work passage (26A, 26B) are attached, and the mounting plate portion (15a) is directed upward from the front end of the pair of left and right mounting plates (15). ) Can be bent continuously. In this case, a fork of a forklift for loading and unloading a load (pallet) with respect to one or a plurality of parallel load support spaces set on the pair of front and rear beam members is provided corresponding to the load support space. Each mounting plate is provided so that a forking operation can be performed between a pair of left and right mounting plates.

  In this case, when the beam material (23a, 23b) having a Σ-shaped cross-section is a rack in which a pair of front and rear are arranged in parallel so that the recesses between the upper and lower horizontal plate portions (27) face each other, The mounting plate (15) includes an inner end vertical plate portion (31) continuously bent downward from the inner end thereof, and an upper end perpendicular bent portion (31a) of the inner end vertical plate portion (31). Is adjacent to the upper corner of the recessed groove portion (29) formed in the vertical wall portion (28) of the beam material (23a, 23b), and the recessed groove portion of the beam material (23a, 23b). By connecting to the vertical plate part (29a) in (29) with one fastener (30), the mounting plate that supports the stopper can be easily and easily secured with one fastener (bolt nut, rivet, etc.) In spite of being able to be mounted on the rack side, it is possible to avoid the inconvenience that the mounting plate rotates around the one fastener and the position of the strike changes unexpectedly.

  The stopper (14) is a stopper in which the flat mounting surface (14a) can be adhered to the surface of the mounting plate portion with an adhesive, or a mounting screw shaft protruding from the mounting surface is embedded and fixed. In some cases, the screw can be attached to the mounting plate using the screw shaft and a nut screwed into the screw shaft. Further, when the stopper is a stopper in which a nut is embedded and fixed substantially flush with the mounting surface, the stopper can be attached to the mounting plate portion using a bolt screwed to the nut. As described above, various methods of attaching the stopper are conceivable, but the mounting shaft (34) is provided integrally with the same material from the mounting surface (14a) and has a retaining collar (34a) at the tip. The stopper (14) is configured, and the retaining plate portion (15a) can be engaged with the retaining collar portion (34a) by press-fitting the mounting shaft portion (34). A through hole (35) can be provided. According to this configuration, the stopper can be securely attached in such a way that it cannot be accidentally removed by simply press-fitting the stopper mounting shaft into the mounting plate mounting through-hole without using any separate parts. I can do it.

  In this case, the retaining flange part (34a) of the mounting shaft part (34) protrudes from the mounting through hole (35) of the mounting plate part (15a), and comes off to the back surface of the mounting plate part (15a). The locking collar (34a) may be engaged, but the large diameter section (34a) is engaged with the retaining collar (34a) at an intermediate position between both ends of the mounting through hole (35). 35a), and in the stopper mounting state in which the retaining collar portion (34a) is engaged with the large diameter portion (35a), the mounting shaft portion (34) is connected to the mounting plate portion (15a). It is configured so as not to protrude to the back side, so that protrusions from the back surface of the mounting plate portion facing the load transfer work passage are eliminated, and the effective width of the load transfer work passage can be prevented from being narrowed even slightly.

  When the mounting shaft portion (34) having the retaining flange (34a) at the tip is projected from the mounting surface (14a) of the stopper (14) as described above, the retaining collar (34a ) And the mounting surface (14a) of the stopper (14) is formed as a conical shaft portion (34b) having a larger diameter toward the mounting surface (14a) of the stopper, and the through-hole (35) for mounting is formed. The region (35b) in which the conical shaft portion (34b) is fitted can be formed in a conical shape in which the conical shaft portion (34b) can be fitted. According to this configuration, while suppressing the size of the stopper main body portion protruding from the mounting plate portion, the volume of the deformed portion when receiving a compressive force can be increased by the conical shaft portion, and the impact absorbing effect is enhanced. I can do it.

  Further, an axial hole for facilitating the diameter-reducing deformation of the retaining collar (34a) is formed in the tip region including the retaining collar (34a) of the mounting shaft (34). (36) or a split groove (37) parallel to the axial direction can be formed. According to this structure, even if the retaining area of the retaining collar portion with respect to the mounting through-hole of the mounting plate portion is increased, the mounting can be facilitated.

  Further, in order to facilitate the compressive deformation for absorbing the impact of the stopper and enhance the impact absorbing effect, it is possible to form a recessed portion (38) that enters the inside from the tip surface, but the recessed portion ( 38) is formed so as to enter the stopper (14) from the back side of the stopper (14), since the load does not directly contact the opening of the recessed portion, the peripheral edge of the opening of the recessed portion is damaged. This makes it difficult to extend the service life.

  Furthermore, the means for attaching the stopper (14) to the attachment plate portion (15a) is not limited to the above configuration. For example, the stopper (14) is provided with a mounting shaft portion (34) that protrudes integrally from the mounting surface (14a) with the same material and that is provided with a retaining collar portion (34a) at the tip. The mounting plate portion (15a) includes a mounting through hole (40) in the front-rear direction in which the entire mounting shaft portion (34) is fitted, and the entire length direction of the mounting through hole (40). Is provided with a vertical insertion slit (41) that is narrower than the thickness of the mounting shaft portion (34), and is a slit that releases the mounting plate portion (15a) to the upper side of the mounting plate portion (15a). When the mounting shaft (34) is fitted into the mounting through-hole (40) from the insertion slit (41) with a deformation that resists the elasticity of the stopper (14), the stopper (14) The mounting plate portion (15a) can be sandwiched between the mounting surface (14a) and the retaining collar (34a). According to this configuration, while the stopper can be easily and easily installed, the stopper is mounted on the mounting plate unless an upward external force opposite to the stopper is applied to the stopper mounting shaft. Can be reliably maintained.

FIG. 1A is a cross-sectional plan view showing one load supporting space of a rack used in an automatic warehouse, and FIG. 1B is an enlarged cross-sectional plan view of the main part of FIG. 1A. FIG. 2A is a front view showing one load support space of a rack used in an automatic warehouse, and FIG. 2B is an enlarged front view of a main part of FIG. 2A. FIG. 3A is a longitudinal side view showing one load supporting space of a rack used in an automatic warehouse, and FIG. 3B is an enlarged partially cutaway side view of a main part of FIG. 3A. FIG. 4A is a front view of a rack into which loads are loaded and unloaded by a forklift, and FIG. 4B is an enlarged front view of a main part of the rack. 5A is a side view (right half) and a longitudinal side view (left half) of the rack shown in FIG. 4, and FIG. 5B is an enlarged longitudinal side view of the main part of the rack. FIG. 6 is a longitudinal side view showing a modified example of a rack into which loads are loaded and unloaded by a forklift. FIG. 7 is an enlarged longitudinal sectional side view of a main part of the rack shown in FIGS. FIG. 8 is an enlarged front view of the main part of the rack shown in FIGS. FIG. 9 is an enlarged vertical side view showing a modification of the main part shown in FIG. FIG. 10 is a rear view of FIG. FIG. 11A is a longitudinal side view of a mounting plate portion and a side view showing a stopper before mounting, and FIG. 11B is a partially vertical side view showing a state after the stopper is mounted. FIG. 12A is a longitudinal side view of a mounting plate portion in the second embodiment and a side view showing a stopper before mounting, and FIG. 12B is a partially vertical side view showing a state after the stopper is mounted in the second embodiment. is there. FIG. 13A is a longitudinal side view of a mounting plate portion in the third embodiment and a side view showing a stopper before mounting, and FIG. 13B is a partially vertical side view showing a state after the stopper is mounted in the third embodiment. is there. FIG. 14A is a longitudinal side view of the stopper in the fourth embodiment, and FIG. 14B is a perspective view of the stopper in the fifth embodiment. FIG. 15A is a longitudinal side view showing a stopper mounting state in the sixth embodiment, and FIG. 15B is a longitudinal side view showing a stopper mounting state in the seventh embodiment. FIG. 16A is a longitudinal sectional side view showing a stopper attached state in the eighth embodiment, and FIG. 16B is a rear view thereof. FIG. 17A is a partially longitudinal side view showing a stopper and a mounting plate portion in the ninth embodiment, FIG. 17B is a partially longitudinal side view showing a stopper mounting state of the embodiment, and FIG. 17C is a part of FIG. 17B. It is a notch rear view.

  The load support space 1 shown in FIGS. 1 to 3 is three-dimensionally partitioned and formed in a rack 3 that is erected along a load transfer work passage 2 that is a passage of a loading / unloading traveling body of an automatic warehouse. Of the four supporting arm members 5a to 5d that protrude from the same height of the columns 4a to 4d arranged outside the four corners in plan view toward the inside of the load supporting space 1 in parallel with the frontage direction, respectively. There is provided a load supporting surface 7 constituted by upper surfaces of a pair of left and right load supporting members 6a and 6b supported at the ends in the front and rear depth direction.

  Each of the supporting arm members 5a to 5d is made of a groove-shaped material having both upper and lower horizontal plate portions 8 and vertical plate portions 9, and is fitted on the outer ends of the corners of the columns 4a to 4d. In this state, a locking member 10 that is locked to an engagement hole provided in the support columns 4a to 4d is fixed by welding, and the vertical plate portion 9 is interposed between the inner horizontal upper and lower horizontal plate portions at the inner end. A mounting plate portion 9a formed by bending is provided. The load supporting members 6a and 6b are formed of a groove-shaped material having both upper and lower horizontal plate portions 11 and vertical plate portions 12, and are located between the upper and lower horizontal plate portions 11 at positions near both ends in the length direction. The inner end portions of the supporting arm members 5a to 5d are fitted, and the upper and lower horizontal plate portions 11 of the load supporting members 6a and 6b are placed outside the upper and lower horizontal plate portions 8 of the supporting arm members 5a to 5d. In the state where the vertical plate portion 12 on the load supporting members 6a and 6b side is adjacent to the outside of the mounting plate portion 9a at the inner end of each of the supporting arm members 5a to 5d, the load transfer work passage 2 side The supporting arm members 5a and 5b and the load supporting members 6a and 6b are formed by attaching the mounting plate portion 9a and the vertical plate portion 12 of the load supporting members 6a and 6b overlapping on the outside to the fastening device 13a such as a rivet. The supporting arm members 5c, 5d on the back side and the load supporting member 6a The upper horizontal plate portion 8 of the supporting arm members 5c and 5d and the upper horizontal plate portion 11 of the load supporting members 6a and 6b that overlap each other are connected to each other by a fastening tool 13b such as a rivet. doing.

  The pair of left and right support arm members 5a and 5b on the load transfer work passage 2 side are used in such a direction that the vertical plate portion 9 is positioned on the load transfer work passage 2 side with respect to the upper and lower horizontal plate portions 8. The pair of left and right support arm members 5c and 5d on the back side are oriented so that the vertical plate portion 9 is located on the opposite side of the upper and lower horizontal plate portions 8 from the side where the load transfer work passage 2 is located. It is used. Further, when the supporting arm members 5a to 5d and the load supporting members 6a and 6b are coupled as described above, the upper surface of the upper horizontal plate portion 11 of the pair of left and right load supporting members 6a and 6b is transferred. The load supporting surface 7 can be utilized up to the front end on the loading work path 2 side. However, when the load supporting surface 7 extends to the rear end of the upper surface of the upper horizontal plate portion 11 of the load supporting members 6a and 6b, it is supported on the back side. The arm members 5c, 5d and the load supporting members 6a, 6b are coupled in the same configuration as the coupling of the supporting arm members 5a, 5b and the load supporting members 6a, 6b on the load transfer work path 2 side. Just do it.

  A stopper 14 is provided on the outer side of the end of the pair of left and right load supporting members 6a and 6b on the load transfer work passage 2 side in each load supporting space 1 configured as described above. The pair of left and right stoppers 14 are formed in a truncated cone shape from a shock absorbing elastic material, that is, a low rebound elastic material, for example, “Hanenite” manufactured by Inner and Outer Rubber Co., Ltd. It is attached by an adhesive or the like to the inside of the mounting plate portion 15a that is bent continuously upward from the front end of the mounting plate 15 in the depth direction, that is, on the load support space 1 side. Each of the mounting plates 15 is provided with an inner end vertical plate portion 15b that is bent downward at a right angle from the rear end thereof, and this inner end vertical plate portion 15b is an inner end of the vertical plate portion 9 of each of the supporting arm members 5a and 5b. A single bolt nut 16 is attached to the part.

  More specifically, the rear end portion of each mounting plate 15 enters between the upper and lower horizontal plate portions 11 of each load supporting member 6a, 6b, and is one side of the mounting plate 15 and the inner end vertical plate portion 15b. The side is adjacent to the inner surface of the vertical plate portion 12 of each load supporting member 6a, 6b, and the upper surface of the rear end portion of the mounting plate 15 is below the upper horizontal plate portion 11 of each load supporting member 6a, 6b. The inner end vertical plate portion 15b of each attachment plate 15 is attached to the inner end portion of the vertical plate portion 9 of each support arm member 5a, 5b by a single bolt nut 16 in a state in contact with the side surface. Accordingly, the rotation of the mounting plate 15 around one bolt nut 16 is prevented by the upper horizontal plate portion 11 of the load supporting members 6a and 6b, and the pair of left and right stoppers 14 are placed in the load supporting space 1. On the other hand, at a position slightly away from the load transfer work passage 2 side, the load support members 6a and 6b are attached to positions slightly above the load support surfaces 7 of the load support members 6a and 6b.

  A load W (for example, a container or a palletized load) stored in each load support space 1 is, as is conventionally known, a load / unloading traveling body that travels along the rack 3 in the load transfer work path 2. In a state where it is supported on a running fork RF provided on the lifting carriage, it is transported to the warehousing position with respect to the load support space 1 to be warehousing in the rack 3. Thereafter, the well-known forking operation for storage, that is, the advancing movement of the running fork RF into the load support space 1 from above the lifting carriage and the pair of left and right load support members 6a and 6b in the load support space 1 are performed. The load W on the running fork RF is sent into the load support space 1 to be received by a series of warehousing forking operations consisting of vertical parallel downward movement from top to bottom and withdrawal movement on the lift carriage. The left and right sides of the bottom surface of the load W are supported by the load support surfaces 7 on the pair of left and right load support members 6a and 6b in the load support space 1 to be stored. In this warehousing operation, the load W passes above the mounting plate portion 15a of the pair of left and right stoppers 14 located on the outer side of the load transfer space 2 of the load support space 1 to be warehousing. It is lowered into the load supporting space 1 inside the pair of stoppers 14 and does not come into contact with the mounting plate portion 15 a or the stopper 14.

  The unloading operation starts from the forking operation for unloading the running fork RF provided in the raising / lowering carriage of the unloading traveling body, that is, from the operation of the running fork RF that is just opposite to the operation of the running fork RF in the forking operation for loading. This is performed by a well-known forking operation for shipping. Also at this time, the load W rises at a position farther inward than the pair of left and right stoppers 14, and moves out on the lifting carriage of the loading / unloading traveling body at a position above the attachment plate portion 15 a.

  The racks shown in FIGS. 4 and 5 are installed with two racks 20A and 20B having the same structure arranged in parallel back to back. Each of the racks 20A and 20B is configured such that the load support surface 22 of the load support space 21 is configured by beam members 23a and 23b along a pair of front and rear frontage directions. Are supported by a pair of front and rear columns 25a and 25b constituting the side frames 24a and 24b, and in the figure, two load supporting spaces 21 are arranged in parallel on the beam members 23a and 23b between the pair of left and right side frames 24a and 24b. An example of the rack configured in FIG. These racks 20A and 20B are used for storing palletized loads W. The front and rear sides of the pallet P supporting each load W are supported by a pair of front and rear beam members 23a and 23b. For the loading / unloading work of W, a forklift that travels along the load transfer work paths 26A and 26B adjacent to the outside of the racks 20A and 20B is used.

  That is, the pair of left and right forks F of the forklift are inserted into the two fork insertion holes Pa provided in the pallet P, and the pallet P is supported by the fork F. By the forking operation, the load W is loaded into and unloaded from the load support space 21 together with the pallet P. In this case, the lowering position of the fork F is an intermediate height in the fork insertion hole Pa of the pallet P supported on the beam members 23a and 23b.

  FIG. 6 shows an example in which one rack 20 having the same structure as the racks 20A and 20B is installed alone. In this case, it is possible to secure the load transfer work passages 26A and 26B on which the forklift can run on both the front and rear sides of the rack 20, but when the rack 20 is installed along the wall surface, it is only on one side of the rack 20. A cargo transfer work path is secured.

  As described above, the racks 20, 20A, and 20B including the load support space 21 that supports the load W (pallet P) by the load support surface 22 configured by the pair of front and rear beam members 23a and 23b are also provided. As in the first embodiment, a pair of left and right stoppers 14 can be disposed outside the ends of the load supporting spaces 21 in the racks 20, 20A, 20B on the side of the load transfer work passages 26A, 26B. The mounting structure will be described in detail. As shown in FIGS. 7 and 8, the beam members 23a and 23b are Σ-shaped in cross section, and the vertical wall portion 28 connecting the upper and lower horizontal plate portions 27 is provided on the vertical wall portion 28. A recessed groove 29 is formed on the outside (the side where the load transfer work passages 26A and 26B are located). In the mounting plate 15 having the stopper 14 mounted on the mounting plate portion 15a at the tip end, an inner end vertical plate portion 31 mounted on the vertical plate portion 29a of the recessed groove portion 29 of the beam members 23a, 23b by a single bolt nut 30. Are connected. The inner end vertical plate portion 31 is formed with a right-angle bent portion 31 a that fits and contacts the upper corner portion of the recessed groove portion 29 in the state of being attached to the recessed groove portion 29. Is prevented from rotating around one bolt nut 30.

  As shown in FIG. 7, the mounting plate 15 attached to the beam members 23a and 23b adjacent to the load transfer work passages 26A and 26B is substantially flush with the upper horizontal plate portion 27 of the beam members 23a and 23b. The stopper 14 attached to the inside of the attachment plate portion 15a at the tip is positioned above the load support surface 22 which is the upper surface of the beam members 23a and 23b. Further, as shown in FIG. 4B, the pair of left and right stoppers 14 are fixed positions on the beam members 23a and 23b, that is, both left and right ends of the pallet P of the load W supported by the load support spaces 21 in the front view. Although it is located on the inner side, it is desirable that it is located on the left and right outer sides from the fork insertion hole Pa. Of course, as shown in FIG. 4B, if the upper end height of the mounting plate portion 15a is not higher than the lower side of the fork insertion hole Pa of the pallet P supported on the beam members 23a and 23b, the fork insertion is seen in the front view. The attachment plate 15 may be attached so as to enter the region of the hole Pa.

  As indicated by phantom lines in FIG. 7, the intermediate vertical plate portion 31b between the mounting plate 15 and the upper end right-angle bent portion 31a of the inner end vertical plate portion 31 is a vertical wall portion 28 of the beam members 23a and 23b. Can be inclined along the inclined plate portions 28a on both the upper and lower sides of the recessed groove portion 29 in FIG. Further, as shown in FIGS. 9 and 10, the inner end vertical plate portion 15b that is bent downward at a right angle from the attachment plate 15 is attached to the vertical plate portion 29a of the recessed groove portion 29 of the beam members 23a and 23b. It may be configured. In this case, since the inner end vertical plate portion 15 b is located with a space from the vertical plate portion 29 a of the recessed groove portion 29, the cylindrical spacer 32 having a length filling the space is loosened on the bolt of the bolt nut 30. Fit it.

  Further, in order to prevent the mounting plate 15 from rotating around the bolt nut 30, it is necessary to mount the mounting plate 15 to the beam members 23a and 23b by at least two bolt nuts 30, as shown in FIG. . Further, if the distance between the beam members 23a and 23b and the mounting plate portion 15a protruding toward the load transfer work passages 26A and 26B is small, as shown by the phantom line in FIG. The upper end portion is a mounting plate portion 15a to which the stopper 14 is attached inside, and the vertical plate 33 for mounting is attached to the vertical plate portion 29a of the recessed groove portion 29 of the beam members 23a and 23b by the cylindrical spacer 32 and the bolt nut 30. Can also be attached to. Further, as shown in FIG. 10, two or three stoppers 14 can be attached in parallel to each of the attachment plate portions 15a.

  According to the racks 3, 20, 20A, 20B of the present invention that can be implemented as described above, the racks 3, 20, 20A, 20B are stored in the load support spaces 1, 21 when the racks 3, 20, 20A, 20B swing in the front-rear depth direction due to seismic force. When the load W (pallet P) supported on the load support surfaces 7 and 22 slides toward the load transfer work passages 2, 26 </ b> A, 26 </ b> B of the load support spaces 1, 21, The left and right two locations near the bottom on the vertical side surface of the load W (pallet P) on the load transfer work path 2, 26A, 26B side collide with the stopper 14, respectively. At this time, since the stopper 14 is formed of an impact absorbing elastic material, that is, a low-rebound elastic material, the load W (pallet P) does not receive a large repulsive force from the stopper 14 at the time of collision, and the stopper 14 By compressing and deforming 14, the impact at the time of collision with the stopper 14 is absorbed, and the load W (pallet P) stops with the stopper 14 being compressed and deformed.

  Accordingly, it is possible to avoid a situation in which the load collapses due to inertia at the time of the collision with the stopper 14 or the load falls to the load transfer work path 2, 26A, 26B side in some cases. In this case, when the weight (load) of the load is large and the impact on the stopper 14 is large, for example, FIG. 10 shows an example rather than using one large stopper that can withstand the large impact at one place. As described above, it is suitable for preventing the collapse of the load that the impacts can be distributed and received by the plurality of small stoppers 14 that are easily deformed. Of course, the load W (pallet P) is slid to the back side of the load support spaces 1, 21 due to the swing of the racks 3, 20, 20A, 20B in the opposite direction. When the side is also released by the load transfer work passage, there is no problem because the stopper 14 is similarly disposed on the back side of the load support spaces 1 and 21. When the back side of the load support spaces 1 and 21 is closed by walls or braces, the stopper 14 does not need to be provided particularly on the back side of the load support spaces 1 and 21, but the load W ( It is preferable from the viewpoint of preventing the collapse of the load that the pallet P) can be stopped by the stopper 14 before it collides.

  Several specific examples of the mounting structure on the rack side of the mounting plate portion 15a to which the stopper 14 is attached are shown. However, some specific examples of the mounting structure of the stopper 14 to the mounting plate portion 15a will be described. As shown in FIG. 11, the mounting shaft portion 34 is integrally formed of the same material from the mounting surface of the stopper 14, and the mounting shaft portion 34 can be press-fitted into the mounting plate portion 15a. A hole 35 can be provided. According to this configuration, it is possible to hold the stopper 14 by the frictional force between the mounting shaft portion 34 and the mounting through hole 35, and in some cases, an adhesive is interposed between the two. The stopper 14 can be attached more strongly. Further, as shown in the drawing, a retaining collar 34a is formed at the tip of the mounting shaft 34, and when the mounting shaft 34 is press-fitted into the mounting through hole 35, the retaining collar 34a is engaged. By forming the large-diameter portion 35a to be formed in the mounting through hole 35, the mounting strength of the stopper 14 can be increased without using an adhesive.

  As shown in FIG. 11, when the large-diameter portion 35a with which the retaining collar portion 34a is engaged is formed in the mounting through-hole 35, the mounting plate portion 15a is connected to the outside (load transfer work path). 26A and 26B side), it is not necessary to project the retaining collar 34a to the projection side. However, in some cases, as shown in FIG. 12, the mounting shaft 34 is lengthened and the retaining collar 34a is attached to the mounting plate. You may comprise so that it may protrude outside 15a and may be engaged with the said mounting plate part 15a.

  Further, as shown in FIG. 13, a conical shape between the mounting flange 14a at the tip of the mounting shaft 34 and the mounting surface 14a of the stopper 14 has a larger diameter toward the mounting surface 14a side of the stopper 14. A region 35b formed in the shaft portion 34b and into which the conical shaft portion 34b of the mounting through-hole 35 is fitted may be formed in a conical shape into which the conical shaft portion 34b can be fitted. Of course, the tip end region including the retaining collar 34a of the mounting shaft 34 has an axial hole 36 for facilitating the diameter-reducing deformation of the retaining collar 34a, Parallel split grooves 37 can be formed. Furthermore, as shown in FIG. 15, the stopper 14 can be formed in a hollow structure by forming a recessed portion 38 that enters the inside of the stopper 14 from the back side thereof. In this case, as shown in FIG. 15A, the attachment shaft portion 34 is combined with the conical shaft portion 34b shown in FIG. 13 to increase the strength of the attachment shaft portion 34, or as shown in FIG. 15B, It is also possible to increase the overall diameter of the mounting shaft portion 34 including the retaining collar portion 34a so that the recessed portion 38 having a large inner diameter can be formed.

  Furthermore, although the stopper 14 has a truncated cone shape, various shapes such as a cylindrical shape, a rectangular block shape, and a horizontally long shape can be used. For example, FIG. As shown, the bottomed cylindrical stopper in which the recessed portion 39 is formed from the front end surface on the load supporting space side can also be used. In this case, as shown by an imaginary line in FIG. 16B, a horizontally long oval bottomed cylindrical body may be used.

  Another embodiment of the stopper mounting means will be described with reference to FIG. 17. As described above, the stopper 14 is integrally protruded from the mounting surface 14a with the same material as described above, and is attached to the tip of the stopper. An attachment shaft portion 34 is provided in which the portion 34a is continuously provided. The mounting plate portion 15a has a plate thickness substantially equal to the entire length of the mounting shaft portion 34 (not including the retaining collar portion 34a), and the mounting plate portion 15a includes the mounting shaft portion 34. The mounting through-hole 40 in the front-rear direction in which the whole is fitted, and a slit that releases the entire length direction of the mounting through-hole 40 to the upper side of the mounting plate portion 15a and the thickness of the mounting shaft portion 34 A narrow insertion slit 41 in the vertical direction is provided. Thus, when the mounting shaft portion 34 is fitted into the mounting through-hole 40 from the insertion slit 41 with deformation against the elasticity of the mounting shaft portion 34 from above. The mounting plate portion 15a is sandwiched between the mounting surface 14a of the stopper 14 and the retaining collar portion 34a. In this configuration, since it is not necessary to elastically deform the retaining collar 34 a by reducing its diameter and move it through in the axial direction of the mounting through hole 40, the outer diameter of the retaining collar 34 a is set to be equal to that of the mounting through hole 40. By making it sufficiently larger than the inner diameter, a reliable retaining effect can be obtained. Even if the difference between the inner diameter of the mounting through hole 40 and the outer diameter of the mounting shaft portion 34 is reduced to facilitate the mounting of the stopper 14, the stopper 14 is released by the external force in the front-rear axial direction acting on the stopper 14. It won't be easy.

  The basic structure of the present invention is that a pair of stoppers 14 made of an impact absorbing elastic material (low repulsion elastic material) are provided at the end on the load transfer work passage side where the load supporting space in the rack is open. The load W (pallet P) slid to the back side due to the shaking of the earthquake collides with the wall or brace at the end of the back side of the load support space closed by the wall or brace. A pair of the left and right stoppers 14 can be disposed so as to be received before the operation. In this case, the mounting structure of the mounting plate portion 15a to which the stopper 14 is attached to the rack, the mounting structure of the stopper 14 to the mounting plate portion 15a, or the structure of the stopper 14 itself described above can be used. I can do it. In addition, when a stopper is provided at the end of the load supporting space closed by the wall or brace of the load supporting space in this way, the elastic material for shock absorption is the same as the conventional load stopper. A stopper made of ordinary hard rubber or the like having no impact absorbing effect can be used in place of the stopper 14 without using (low resilience elastic material).

  The rack of the present invention is effective for racks in automatic warehouses and racks where goods palletized by forklifts are loaded and unloaded, especially in the event of an earthquake and the collapse of loads and the fall of loads to the load transfer work path adjacent to the racks. It can be used as a rack that can prevent damage.

1, 21 Load support space 2, 26A, 26B Load transfer work path 3, 20, 20A, 20B Rack 5a-5d Support arm member 6a, 6b Load support member 7, 22 Load support surface 14 Stopper 15 Mounting plate 15a Mounting plate portion 15b, 31 Inner end vertical plate portion 16, 30 Bolt nut 23a, 23b Beam material 28 Beam wall vertical wall portion 29 Recessed groove portion 31a Right angle bent portion 31b Intermediate vertical plate portion 32 Cylindrical shape Spacer 33 Mounting vertical plate 34 Stopper mounting shaft portion 34a Retaining retaining flange portion 34b Conical shaft portion 35, 40 Mounting through hole 35a Large diameter portion of mounting through hole 35b Conical region of mounting through hole 36 Axial hole 37 Split groove 38, 39 Recessed part 41 Insertion slit F Forklift fork P Palette Pa Pallet Oak insertion hole RF Running fork of traveling body for loading and unloading W load

Claims (12)

  In a rack in which loads are taken in and out by a forking operation from the load transfer work passage, a pair of left and right protrusions projecting above the load support surface in the load support space at the end of each load support space on the load transfer work passage side And a stopper made of an impact-absorbing elastic material is provided on the load supporting space side of the pair of left and right mounting plates, and the load stored in the load supporting space is the load supporting surface. A rack configured such that when the upper side is slid to the load transfer operation passage side, the left and right portions of the load are received by the stopper.   A pair of left and right load supports in the front-rear depth direction, in which the load support surfaces of the load support space are supported by support arm members that protrude toward the load support space from pillars erected outside the four corners of the load support space. The pair of left and right support arm members that support the ends of the left and right pair of load support members on the load transfer work path side are higher than the load support surface. 2. The mounting plate extending horizontally toward the load transfer work path at a position where the mounting plate portion is not attached is attached, and the mounting plate portion is bent and connected upward from the front ends of the pair of left and right mounting plates. Rack.   The pair of left and right mounting plates has the support arm in a state in which the inner end vertical plate portion that is bent vertically downward from the inner end enters the lower side of the horizontal plate portion of the load supporting member. Each of the vertical plate portions of the member is attached to the vertical plate portion by one fastening tool, and the horizontal mounting plate from the inner end vertical plate portion to the mounting plate portion at the tip is a lower side of the horizontal plate portion of the load supporting member. The rack according to claim 2, wherein the rack is in surface contact with the rack.   The load support surface of the load support space is a rack composed of a pair of front and rear beam members laid horizontally along the frontage between the columns, and the pair of front and rear beam members serves as a load transfer work path. A pair of left and right mounting plates that extend horizontally toward the load transfer work path at a position not higher than the load supporting surface are attached to adjacent beam members, and the mounting is performed upward from the front ends of the pair of left and right mounting plates. The rack according to claim 1, wherein the plate portion is bent and connected.   The pair of left and right mounting plates have inner end vertical plate portions that are bent vertically downward from the inner end thereof, and the upper end perpendicular bent portion of the inner end vertical plate portion is a vertical wall of the beam member. The inner end vertical plate portion and the vertical plate portion in the recessed groove portion of the beam material are coupled by a single fastener in a state adjacent to the upper recessed corner portion of the recessed groove portion formed in the portion. The rack according to claim 4.   The stopper has a mounting shaft portion that integrally projects from the mounting surface with the same material and has a retaining flange at the tip, and the mounting plate portion has the length of the mounting shaft portion. The rack according to any one of claims 1 to 5, wherein a through-hole for mounting in the front-rear direction capable of engaging the retaining collar by pressing in a direction is provided.   The mounting through-hole has a large-diameter portion with which the retaining collar is engaged at an intermediate position between both ends thereof, and in the stopper mounting state in which the retaining collar is engaged with the large-diameter portion. The rack according to claim 6, wherein the mounting shaft portion is configured not to protrude to the back side of the mounting plate portion.   A space between the stopper collar at the tip of the mounting shaft and the stopper mounting surface is formed as a conical shaft having a larger diameter on the stopper mounting surface side, and the conical shape of the mounting through-hole is formed. The rack according to claim 6 or 7, wherein the region in which the shaft portion is fitted is formed in a conical shape into which the conical shaft portion can be fitted.   An axial hole or a split groove parallel to the axial direction is formed in the tip end region including the retaining collar of the mounting shaft for facilitating the diameter reduction deformation of the retaining collar. The rack according to any one of claims 6 to 8.   The rack according to any one of claims 1 to 9, wherein the stopper has a cylindrical structure in which a recessed portion that enters inside from a tip end surface thereof is formed.   The rack according to any one of claims 1 to 9, wherein the stopper has a hollow structure in which a recessed portion that enters the stopper from the back side is formed. The stopper is provided with a mounting shaft portion that is integrally protruded from the mounting surface with the same material and is provided with a retaining collar at the tip, and the mounting plate portion includes the mounting shaft portion. The mounting through-hole in the front-rear direction that fits the whole and a slit that releases the entire length direction of the mounting through-hole to the upper side of the mounting plate portion, and is narrower than the thickness of the mounting shaft portion. When a fitting slit in the vertical direction is provided, and the fitting shaft portion is fitted into the fitting through hole from the fitting slit with deformation against the elasticity of the fitting shaft portion, The rack according to any one of claims 1 to 5, wherein the mounting plate portion is sandwiched between a stopper mounting surface and the retaining flange portion.

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