JP2008133074A - Load supporting device of rack for load storage - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enhance earthquake resistance by adopting a base isolation structure in a load supporting device of a rack for load storage in which a pair of long right and left load receiving members is horizontally installed inside both right and left partition wall frames of a load storage district in the loading/unloading direction. <P>SOLUTION: In this load supporting device, each of supporting units 10A, 10B disposed between supporting members 9 and the load receiving members 3 comprises a columnar member 13 projecting from a supporting member 7 and a receiving member 14 attached to the load receiving member 3. The receiving member 14 has a contact plate part 21 horizontally slidably abutting on the horizontal supporting surface 19a of the columnar member 13 and having a slidable contact surface 24a larger in area than the horizontal supporting surface 19a, and a peripheral wall part 22 arranged continuously with the periphery of the contact plate part 21. Biasing units 12A, 12B are so formed on the slidable contact surface center part 26 of the contact plate part 21 as to hold the columnar member 13. The slidable contact surface peripheral part 27 of the contact plate part 21 is so formed that the frictional resistance between itself and the horizontal supporting surface 19a of the columnar member 13 is larger than that at the slidable contact surface center part 26. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a load support device for a load storage rack in which a pair of left and right load receiving members that are long in the front-rear depth direction of the load storage section are horizontally installed inside the left and right partition walls of the load storage section.

In this type of load storage rack, when the rack swings in the front / rear depth direction (unloading / unloading direction) of the load storage section, the load being stored can be placed on the aisle side of the rack (the loading / unloading provided along the rack). There is an accident that the load receiving member slides and falls to the side of the traveling crane. As one means for preventing such an accident, a pair of left and right load receiving members included in each load storage section is considered to have a seismic isolation structure. The seismic isolation structure in this type of load storage rack load support device basically includes a support member provided continuously from both left and right bulkhead frames of the load storage compartment, as described in Patent Document 1. Between each of the load receiving members, a support means for supporting the load receiving member so as to be horizontally slidable within a certain range and an urging means for urging and holding the load receiving member at a fixed position in the slidable area are disposed. It will be a thing.
Japanese Patent No. 3729316 (Japanese Patent Laid-Open No. 2000-226111)

  Thus, in the load support device having this type of seismic isolation structure, as a safety measure, the slidable region of the load receiving member with respect to the support member is limited by the slide limiting member provided on the support member side. When the rack is subjected to sudden shaking, the load receiving member collides with the slide limiting member on the support member side vigorously, and the load supported on the load receiving member by the reaction, for example, the load stacked on the pallet There is a possibility of collapse.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a load support device for a load storage rack capable of solving the conventional problems as described above, and the load support device according to claim 1 is an implementation described later. When a reference numeral of the form is attached, a pair of left and right load receiving members 3 that are long in the front-rear depth direction (X direction) of the load storage section 1 are installed horizontally inside the left and right partition walls 2 of the load storage section 1. A support member 7 connected from the left and right partition wall frames 2 is disposed below the load receiving member 3, and the load receiving member 3 is fixed between the support member 7 and the load receiving member 3. This is a load storage device for a load storage rack provided with support means 9 for supporting the load receiving member 3 so as to be horizontally slidable within a range and urging means 11 for urging and holding the load receiving member 3 at a fixed position within the slidable region. Thus, the support means 9 is a The supporting units 10A and 10B are provided at least in two places, and each of the supporting units 10A and 10B protrudes from one member of the supporting member 7 and the load receiving member 3 toward the other member side. And a receiving member 14 attached to the other member. The receiving member 14 abuts on the front end surface (horizontal support surface 19a) of the columnar member 13 so as to be slidable in the horizontal direction, and A contact plate portion 21 having a sliding contact surface 24a wider than the front end surface (horizontal support surface 19a), and a peripheral wall portion 22 continuously provided so as to surround the columnar member 13 from the periphery of the contact plate portion 21; The urging means 11 is configured to hold the columnar member 13 at the slidable contact surface central portion 26 of the contact plate portion 21, and the slidable contact surface peripheral portion 27 of the contact plate portion 21 is The sliding contact surface central portion 26 Is also configured such frictional resistance is increased between the front end surface of the columnar member 13 (horizontal support surface 19a).

  When the load supporting device for a load storage rack according to the present invention is implemented, as described in claim 2, the columnar member 13 protrudes upward from the supporting member 7, and the receiving member 14 is , And can be fixed to the lower side of the load receiving member 3. The urging means 11 comprises a spiral coil spring 15 interposed horizontally between the columnar member 13 and the peripheral wall portion 22 of the receiving member 14 as described in claim 3. Can do.

  As a specific method of configuring the slidable contact surface peripheral portion 27 of the abutting plate portion 21 so that the frictional resistance between the slidable contact surface central portion 26 and the columnar member front end surface (horizontal support surface 19a) is larger. As described in claim 4, a method of processing the slidable contact surface peripheral portion 27 of the abutting plate portion 21 so that the surface roughness is rougher than that of the slidable contact surface central portion 26. As described in the above, between one of the slidable contact surface central portion 26 and the slidable contact surface peripheral portion 27 of the abutting plate portion 21 and the columnar member tip surface (horizontal support surface 19a). The method of sticking the seal 28 for changing the frictional resistance, or the sliding contact surface peripheral portion 27 of the abutting plate portion 21 as the closer to the peripheral wall portion 22, the closer to the peripheral wall portion 22, A method of forming a curved surface protruding to a certain side can be used.

  According to the load supporting device for a load storage rack according to the present invention, when the rack swings back and forth in the depth direction (the length direction of the load receiving member) of the load storage section when an earthquake occurs, the support member swings back and forth integrally with the rack. And a load receiving member supported so as to be slidable in the horizontal direction via the columnar member and the receiving member of the support unit, a relative movement occurs against the urging force of the urging means to support the load. The load receiving member is not swayed in the front-rear direction at the same speed and the same amplitude as the rack. Therefore, when the rack swings to the opened passage side (forward), the load receiving member and the load on the load receiving member swing forward together, and the load slides on the load receiving member due to inertia. Depending on the situation, there is no risk of falling to the passage side. After the relative movement between the support member and the load receiving member, the columnar member is returned to the center of the sliding surface of the contact plate portion of the receiving member by the biasing force of the biasing means, and the load receiving member is placed on the support member. Since the position automatically returns to the origin position, unless the load slides on the load receiving member, the load position does not change unexpectedly in the front-rear direction, and the load can be continuously stored safely.

  Thus, according to the configuration of the present invention described in claim 1, when the load receiving member moves relative to the support member in the horizontal direction against the urging force of the urging means, that is, in the receiving unit. When the front end surface of the columnar member relatively slides from the center of the sliding surface of the contact plate portion of the member toward the outer peripheral wall portion, the columnar member is moved away from the center of the sliding surface. The contact area between the front end surface and the periphery of the sliding contact surface increases, and the frictional resistance acting on the columnar member increases. That is, as the amount of relative movement between the receiving member and the columnar member increases, the resistance to the relative movement increases, and the relative movement of the load receiving member with respect to the support member is braked. Even if a sudden swing acts on the rack, the braking force acts as a damper effect, so that the load receiving member that moves relative to the support member can be smoothly decelerated and stopped, and the columnar member and the peripheral wall portion of the support member in the support unit. You don't have to collide with Therefore, even when a load loaded in bulk on the pallet is stored, the collapse of the load is prevented or reduced, and the safety is improved.

  In addition, although the columnar member in the support unit protrudes downward from the load receiving member side and the receiving member can be attached to the support member side in the upward opening direction, according to the configuration of claim 2, Since the columnar member is covered with the columnar member from above, the contact plate sliding surface of the receiving member even when the receiving member is configured to protrude outward from the load receiving member in plan view There is no inconvenience that the frictional resistance changes unexpectedly due to adhesion of dust and the like.

  According to the third aspect of the present invention, a spring necessary for the biasing means, that is, a spring for biasing and holding the load receiving member supported by the support unit in the fixed position is provided in the support unit. The number of parts of the entire load support device can be reduced and the cost can be reduced as compared with the case where the urging means is configured at a position different from the support unit.

  The configuration according to claim 4 is adopted as means for configuring the periphery of the sliding surface of the contact plate portion of the receiving member so that the frictional resistance between the front end surface of the columnar member is larger than the central portion of the sliding surface. When this is done, the durability is superior to the method of applying a seal for changing the frictional resistance, but according to the configuration of claim 5, the seal for changing the frictional resistance is provided at the center of the sliding surface or Since it only sticks to the peripheral part of a sliding surface, this invention can be implemented easily and cheaply. In this case, a seal for reducing the frictional resistance can be applied to the central portion of the sliding contact surface, or a seal for increasing the frictional resistance can be applied to the peripheral portion of the sliding contact surface.

  Furthermore, according to the structure of Claim 6, a strong brake effect, ie, a damper effect, can be exhibited as a columnar member approaches the peripheral wall part of a receiving member, and the intended purpose can be achieved reliably. .

  FIG. 1 shows a basic configuration of a rack to which the load supporting apparatus of the present invention can be applied. Reference numeral 1 denotes a load storage section arranged in a grid pattern in both the upper, lower, left and right directions, and adjacent loads in the left and right lateral directions. A partition frame 2 is erected vertically between the storage compartments 1, and the load storage compartments 1 adjacent to each other in the vertical direction are separated by a pair of left and right load receiving members 3.

  Each partition frame 2 has a lattice structure in which a pair of front and rear support members 4a and 4b are connected to each other by a connecting member 5. On the back side of the load storage compartment 1, the rear support members 4b of each partition frame 2 are On the front side of the load storage section 1, that is, on the traveling passage side of the loading / unloading crane that loads and unloads the load storage section 1, the load is stored in the load storage section 1. It is known that the front strut members 4a of the partition wall frames 2 are connected to each other by a horizontal connecting member (not shown) at a level that does not interfere with taking in and out. The pair of left and right load receiving members 3 are rod-shaped members that are long in the loading / unloading direction of the load storage section 1, that is, the front-rear depth direction (X direction) of the load storage section 1, and the front and rear ends thereof are partition walls adjacent to the outside. The frame 2 is supported by a pair of front and rear support members 7 attached to both front and rear support members 4a and 4b.

  Hereinafter, one embodiment of the present invention will be described in detail with reference to FIGS. 2 to 6. Each load receiving member 3 is composed of a gate member 8 that is open on the lower side. A pair of front and rear support units 10A and 10B constituting the support means 9 and a pair of front and rear urging forces constituting the urging means 11 between the free end portions of the support member 7 extending downwardly. Units 12A and 12B are arranged. The pair of front and rear support units 10A and 10B have the same structure, and are composed of a columnar member 13 protruding from the upper surface of the support member 7 and a receiving member 14 covering the columnar member 13 from above. The urging units 12A and 12B are each composed of a spiral coil spring 15 interposed horizontally between the columnar member 13 and the receiving member 14 in each of the support units 10A and 10B.

  The columnar member 13 is attached to the upper surface of the support member 7 with a plurality of mounting bolts 16 and has a cylindrical body 17 having a notch step portion 17a (see FIG. 6) at the upper circumferential edge, and A circular pressure plate 18 having the same diameter as that of the cylindrical body 17 and a circular slide plate 19 which is superimposed on the circular pressure plate 18 and has the same diameter as the circular body 17, and the circular slide plate 19. The circular pressing plate 18 is composed of a plurality of mounting screws 20 for fixing the circular pressing plate 18 to the cylindrical body 17. The upper surface of the head of the mounting screw 20 is configured to be flush with the upper surface of the circular slide plate 19 or slightly recessed. Thus, an annular groove 13a is formed on the cylindrical surface of the columnar member 13 by the notch step portion 17a formed at the upper circumferential edge of the cylindrical body 17 and the peripheral portion of the circular pressing plate 18. ing.

  The receiving member 14 has a contact plate portion 21 that is larger in diameter and circular than the columnar member 13, and an annular peripheral wall portion 22 that is continuously provided so as to surround the columnar member 13 from the periphery of the contact plate portion 21. The circular slide plate 24 is attached to the lower side of the contact plate portion 21 with a plurality of mounting screws 23 so as to cover substantially the entire surface thereof, and the columnar member 13 is formed by the circular slide plate 24. A slidable contact surface 24a wider than the front end surface (horizontal support surface 19a) is formed, which is slidably contacted with the upper end surface of the circular slide plate 19, that is, the horizontal support surface 19a of the circular slide plate 19 in the horizontal two-dimensional direction. Thus, when the sliding contact surface 24a on the receiving member 14 side is placed on the horizontal support surface 19a on the columnar member 13 side, the inner wall of the peripheral wall portion 22 is located at the same level as the concave groove portion 13a of the columnar member 13. An annular concave groove 22a is formed on the peripheral surface. As shown in FIGS. 3 and 4, the receiving member 14 has notches formed on both side vertical plate portions 8a and 8b of the gate-shaped member 8 that is open on the lower side at both ends in the length direction of the load receiving member 3. In a state where the contact plate portion 21 of the receiving member 14 is fitted to the portion 25 so as to protrude from the left and right sides and the end sides of the gate-shaped member 8 in a plan view, it is fixed to the gate-shaped member 8 by welding. is doing.

  The spiral coil spring 15 is formed by spirally winding a linear steel material on a horizontal two-dimensional plane, and the inner end side C-shaped portion 15a is fitted in the concave groove portion 13a on the columnar member 13 side. The outer end side C-shaped part 15b is received and fitted into the concave groove part 22a on the member 14 side. Specifically, before the circular pressing plate 18 and the circular slide plate 19 constituting the columnar member 13 are attached to the cylindrical body 17, a spiral coil spring is formed on the notched step portion 17 a at the upper circumferential edge of the cylindrical body 17. The inner end side C-shaped portion 15 a of 15 can be fitted from above, and thereafter, the circular pressing plate 18 and the circular slide plate 19 can be attached to the upper end of the cylindrical body 17 with the mounting screw 20.

  The load receiving member 3 supported by the support member 7 by the support units 10A and 10B and the urging units 12A and 12B having the above-described configuration is the upper horizontal support surface 19a of the columnar member 13 on the support member 7 side (the upper surface of the circular slide plate 19). ) Supports the sliding contact surface 24a of the receiving member 14 on the side of the load receiving member 3 (the lower surface of the circular slide plate 24), and therefore, in the inner region of the peripheral wall portion 22 of the receiving member 14, specifically, FIG. As shown in FIG. 4, the spiral coil spring 15 is compressed in the horizontal direction between the columnar member 13 and the peripheral wall portion 22 so as to be in close contact with each other, or within a range until the peripheral wall portion 22 contacts the columnar member 13. It is possible to slide 360 degrees in any horizontal two-dimensional direction. Further, since the spiral coil spring 15 is interposed between the columnar member 13 and the peripheral wall portion 22 while being reduced in diameter against elasticity, the position of the load receiving member 3 is changed by the reaction force to the receiving member. Fourteen peripheral wall portions 22 are held at positions that are concentric with the columnar member 13. Therefore, the upper end horizontal support surface 19a on the columnar member 13 side comes into contact with the central portion of the sliding contact surface 24a on the receiving member 14 side.

  In this embodiment, as shown in FIG. 7, the sliding contact surface 24 a on the receiving member 14 side formed on the lower side surface of the circular slide plate 24 is on the columnar member 13 side formed on the upper side surface of the circular slide plate 19. The sliding contact surface central portion 26 having a diameter larger than that of the horizontal support surface 19 a and a circular peripheral side surface peripheral portion 27 on the outer side thereof are partitioned, and the peripheral side surface peripheral portion 27 is more columnar than the sliding contact surface central portion 26. The frictional resistance between the horizontal support surface 19a on the 13th side is increased. Specifically, the slidable contact surface central portion 26 is polished to a smooth surface, and the peripheral side surface peripheral portion 27 is roughened to increase the frictional resistance.

  In the above configuration, when a load is placed on the pair of left and right load receiving members 3, the load is applied to the contact plate portion 21 of the receiving member 14 and the columnar member 13 in the two front and rear support units 10 </ b> A and 10 </ b> B. Are received by the support member 7. In such a state, when a horizontal external force that is strong enough to deform the spiral coil spring 15 in the horizontal direction acts relatively between the load receiving member 3 and the support member 7, the load receiving member 3 and the support member 7. 5 is a range from when the spiral coil spring 15 is compressed in the horizontal direction between the columnar member 13 and the peripheral wall portion 22 to be in close contact with each other or until the peripheral wall portion 22 contacts the columnar member 13. With the relative sliding between the horizontal support surface 19a on the columnar member 13 side (upper side surface of the circular slide plate 19) and the sliding contact surface 24a on the receiving member 14 side (lower side surface of the circular slide plate 24), The spiral coil spring 15 can be relatively moved horizontally while being deformed in the horizontal direction.

  Therefore, when the rack swings in the front-rear depth direction (X direction) of the load storage section 1 due to an earthquake or the like, the support member 7 integral with the rack is biased to the load receiving member 3 supporting the load. The spiral coil spring 15 swings in the same direction against the elasticity of the spiral coil spring 15, and relative movement occurs between the load receiving member 3 supporting the load and the support member 7, and the load on the load receiving member 3 is almost swung. If it does not exist, or it swings with a small amplitude later than the swing of the support member 7, the desired seismic isolation effect can be obtained if the speed and amplitude of the swing are within the assumed range. Of course, the spiral coil springs 15 of the urging units 12A and 12B always attempt to automatically return so that the inner end side C-shaped portion 15a and the outer end side C-shaped portion 15b are substantially concentric by elastic return force. Therefore, when the rack swing is settled, the load receiving member 3 is automatically returned to the intended fixed position by the elastic return force of the spiral coil spring 15.

  The horizontal relative movement between the load receiving member 3 and the support member 7 cannot be expected to have the desired seismic isolation effect unless it is configured to be smoothly performed with little resistance. In other words, the frictional resistance between the horizontal support surface 19a on the columnar member 13 side and the sliding contact surface 24a on the receiving member 14 side in the support units 10A and 10B must be configured to be as small as possible. For this reason, the horizontal support surface 19a and the sliding contact surface 24a are different from the columnar member 13 (circular pressing plate 18) and the receiving member 14 and are made of different members, such as the circular slide plate 19 and the circular slide plate 24. However, in the present invention, the sliding contact surface 24a is divided into a sliding contact surface central portion 26 having a low frictional resistance and a sliding contact surface peripheral portion 27 having a high frictional resistance. When the horizontal movement amount between the support member 7 and the load receiving member 3 is small, the horizontal support surface 19a on the columnar member 13 side is within the area of the central portion 26 of the sliding contact surface on the receiving member 14 side. Although the relative movement is light and smooth, the horizontal support surface 19a on the columnar member 13 side becomes closer to the receiving member 14 when the rack swing is large and the amount of relative movement in the horizontal direction between the support member 7 and the load receiving member 3 increases. The area at the center 26 of the sliding surface Thus entering a relatively large sliding surface peripheral portion 27 of the frictional resistance from the inner. As a result, the resistance force against the relative movement in the horizontal direction between the support member 7 and the load receiving member 3 is increased, and the degree of increase is such that the columnar member 13 approaches the peripheral wall portion 22 of the receiving member 14, that is, The larger the overlapping area between the horizontal support surface 19a on the columnar member 13 side and the slidable contact surface peripheral portion 27 on the receiving member 14 side, the larger it becomes.

  As is apparent from the above-described operation, when the horizontal movement between the support member 7 and the load receiving member 3 occurs due to the swing of the rack, the greater the amount of the relative movement, the stronger the braking force is applied to the support member 7 and the load receiving member. 3, the relative movement is suppressed, and the damper effect is exhibited. Therefore, even if the rack is strongly shaken, the columnar member 13 on the support member 7 side and the receiving member 14 on the load receiving member 3 side The fear of causing collision with the peripheral wall portion 22 and eliminating the load collapse is eliminated or reduced.

  In the above-described embodiment, the pair of front and rear support columns 4a and 4b of the partition wall frame 2 supporting the support member 7 has an open cross section, and the support member 7 is attached as shown in FIG. 2C. Since the side wall plate portion 4c having a square cross section projecting sideways of the supporting column members 4a and 4b can be elastically deformed in the horizontal direction inside and outside, the inside and outside of the side wall plate portion 4c having a square cross section shape of the column materials 4a and 4b. If the direction is accompanied by elastic deformation in the horizontal direction, the relative movement in the horizontal direction between the support member 7 and the partition frame 2 is allowed to some extent. Therefore, depending on the shaking direction of the rack (partition wall frame 2) due to an earthquake or the like, in addition to the horizontal relative movement between the support member 7 and the load receiving member 3, the horizontal direction between the support member 7 and the partition frame 2 The relative movement also enhances the seismic isolation effect for the load supported by the load receiving member 3. In FIG. 2C, reference numeral 7a denotes a mounting plate attached to the inner end of the support member 7. The mounting plate 7a is fitted on the side wall plate portion 4c having a square cross section projecting sideways of the column members 4a and 4b. , It is locked to the support material 4a, 4b by the connecting pin 7b.

  In the above embodiment, the urging units 12A and 12B are configured by incorporating the spiral coil spring 15 into the support units 10A and 10B. However, as is conventionally known, the urging means 11 is provided at a location different from the support units 10A and 10B. It can also be arranged. Of course, the configuration of the biasing means 11 is not limited, and various well-known biasing means can be employed.

  Contrary to the above-described embodiment, the columnar member 13 can be protruded downward from the load receiving member 3 side, and the receiving member 14 can be provided on the support member 7 side. Further, as a method of increasing the frictional resistance between the sliding contact surface peripheral portion 27 of the contact plate portion 21 and the front end surface (horizontal support surface 19a) on the columnar member 13 side than the sliding contact surface central portion 26, FIG. As shown in FIG. 8, a seal 28 for reducing the frictional resistance at the time of sliding contact with the front end surface (horizontal support surface 19a) of the columnar member 13 is attached to the center portion 26 of the sliding contact surface so that the periphery of the sliding contact surface is relatively Although a method of increasing the frictional resistance of the portion 27 and the illustration are omitted, contrary to the above, a seal that increases the frictional resistance at the time of sliding contact with the tip end surface (horizontal support surface 19a) of the columnar member 13 is provided on the sliding contact surface. A method of sticking to the peripheral portion 27 can be adopted. In the drawing, a seal 28 is affixed to a circular slide plate 24 attached to the abutting plate portion 21 of the receiving member 14. However, the method of applying this seal omits the circular slide plate 24 and It is also possible to apply a seal directly to the abutting plate portion 21 to form a slidable contact surface central portion 26 having a small frictional resistance and a slidable contact surface peripheral portion 27 having a high frictional resistance.

  As shown in FIG. 9, a small-diameter circular slide plate 24 is provided at the center of the lower surface of the contact plate 21 of the receiving member 14 (the surface facing the tip surface of the columnar member 13). Is embedded so as to be flush with the lower side surface 21a of the contact plate portion 21 around the circular slide plate 24, and the sliding contact surface central portion 26 having a small frictional resistance is formed on the slide contact surface 24a of the circular slide plate 24. It is also possible to form the slidable contact surface peripheral portion 27 having a large frictional resistance with the lower side surface 21a of the contact plate portion 24 around it. Further, as shown in FIG. 10, the periphery of the sliding surface of the abutting plate 21 in the receiving member 14, that is, the peripheral portion 27 of the sliding surface of the circular slide plate 24 approaches the peripheral wall 22 of the receiving member 14. By forming the concave curved surface projecting to the side where the columnar member 13 is located, the resistance to the distal end surface (horizontal support surface 19a) of the columnar member 13 that horizontally moves relative to the peripheral wall portion 22 from the sliding contact surface central portion 26 increases. It can also be configured to. In this case, the peripheral edge of the tip surface (horizontal support surface 19 a) of the columnar member 13 that horizontally moves relative to the peripheral wall portion 22 from the slidable contact surface central portion 26 does not bite into the concave curved surface of the slidable contact surface peripheral portion 27. In addition, it is desirable to form the peripheral edge 19b of the front end surface (horizontal support surface 19a) of the columnar member 13 in a curved surface.

  In any case, depending on the material and surface treatment, the circular slide plates 19 and 24 as shown in the above embodiment are not used, and the columnar member 13 and the contact plate portion 21 of the receiving member 14 slide on each other. It is also possible to form a horizontal support surface 19a and a slidable contact surface 24a that freely come into contact with each other. The pair of left and right load receiving members 3 is located at a location that does not affect the loading and unloading of the load transfer fork of the crane for loading and unloading, for example, the rear end portion of the load receiving member 3 and the space for the loading and unloading fork. On the lower side, the load receiving members 3 can be connected to each other by a connecting member.

Fig. A is a cross-sectional plan view of the main part for explaining the basic configuration of the load storage rack, and Fig. B is a front view of the main part. Fig. A is a plan view showing the load supporting device, Fig. B is a front view thereof, and Fig. C is an enlarged view of a portion C of Fig. A. It is a partially notched top view which shows the one side of a load support apparatus. It is the XX sectional view taken on the line of FIG. It is a figure which shows the YY sectional view taken on the line of FIG. 3 in the state which the load receiving member displaced to one side. It is a partially cutaway exploded perspective view showing one support unit and an urging unit. It is the vertical side view (A figure) and bottom view (B figure) explaining the detail of a support unit. It is a bottom view which shows 2nd embodiment of a support unit. It is a vertical side view which shows 3rd embodiment of a support unit. It is a vertical side view which shows 4th embodiment of a support unit.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Load storage section 2 Bulkhead frame 3 Load receiving member 4a, 4b Support | pillar member 5,6 Connection member 7 Support member 8 Portal member 9 Support means 10A, 10B Support unit 11 Energizing means 12A, 12B Energizing unit 13 Columnar member 13a, 22a Concave groove portion 14 Receiving member 15 Spiral coil spring 17 Cylindrical body (columnar member)
18 Circular retainer plate 19 Circular slide plate (columnar member)
19a Horizontal support surface 21 Contact plate portion 22 Peripheral wall portion 24 Circular slide plate 24a Sliding contact surface 25 Notch portion 26 Sliding contact surface central portion 27 Sliding contact peripheral portion 28 Seal for changing friction resistance

Claims (6)

  A pair of left and right load receiving members that are long in the front-rear depth direction of the load storage compartment are horizontally installed inside the left and right bulkhead frames of the load storage compartment. The support member is disposed, and between the support member and the load receiving member, a support means for supporting the load receiving member so as to be horizontally slidable within a certain range, and the load receiving member at a fixed position in the slidable region. A load support device for a load storage rack provided with an urging means for urging and holding, wherein the support means includes support units provided at least at two locations in a length direction of the load receiving member. Each support unit includes a columnar member projecting from one member of the support member and the load receiving member toward the other member side, and a receiving member attached to the other member, The receiving member is the front A contact plate portion that is slidably contacted with the tip end surface of the columnar member in a horizontal direction and has a sliding contact surface wider than the tip end surface, and is continuously provided so as to surround the columnar member from the periphery of the contact plate portion. The urging means is configured to hold the columnar member at the center of the sliding contact surface of the contact plate portion, and the peripheral portion of the contact surface of the contact plate portion is A load support device for a load storage rack, wherein the load resistance between the front end surface of the columnar members is larger than that at the center of the contact surface.   The load supporting device for a load storage rack according to claim 1, wherein the columnar member protrudes upward from the support member, and the receiving member is fixed to a lower side of the load receiving member.   The load of the load storage rack according to claim 1 or 2, wherein the biasing means is configured by a spiral coil spring interposed horizontally between the columnar member and the peripheral wall portion of the receiving member. Support device.   The load storage rack according to any one of claims 1 to 3, wherein a peripheral portion of the abutting plate portion is processed so that a surface roughness thereof is rougher than a central portion of the sliding contact surface. Load support device.   The seal for changing the frictional resistance between the columnar member tip surface is affixed to either one of the slidable contact surface central portion and the slidable contact surface peripheral portion of the contact plate portion. The load supporting device for a load storage rack according to any one of 1 to 3.   The load storage according to any one of claims 1 to 3, wherein a peripheral portion of the contact surface of the contact plate portion is formed as a curved surface that protrudes toward the side with the columnar member as the peripheral wall portion is approached. Rack load support device.

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