JP2008050124A - Load support device for load storage rack - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enhance earthquake resistance by adopting a base isolation structure in a load support device for a load storage rack in which a pair of right and left load receiving members 3 long in the load carrying-in/out direction are horizontally installed inside both right and left partition wall frames 2 in a load storage section 1. <P>SOLUTION: In the load support device for the load storage rack, the pair of right and left load receiving members 3 long in the forward and backward depth direction (X direction) of the load storage section 1 are horizontally installed inside the both right and left partition wall frames 2 in the load storage section 1. The load receiving members 3 are mounted to support members 7 mounted to the partition wall frames 2 via a pair of front and back horizontal oscillation parallel links 10a, 10b so as to enable parallel movement in the forward and backward depth direction (X direction) of the load storage section 1. Energizing means 14 for energizing and holding the load receiving members 3 in fixed positions within the parallel movement region are also provided. <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. For example, as described in Patent Document 1, the seismic isolation structure in the load support device of this type of load storage rack is configured such that each load receiving member is attached to a support member provided continuously from both left and right partition walls of the load storage section. As a biasing means for supporting the load receiving member slidably in its length direction (the front and rear depth direction of the load storage section) and biasing and holding the load receiving member at a fixed position in the slidable region, the length of the load receiving member is lateral to the support member. A coil spring parallel to the vertical direction was provided.
Japanese Patent No. 3729316 (Japanese Patent Laid-Open No. 2000-226111)

  In the conventional seismic isolation structure described in Patent Document 1, the load receiving member is slid in the horizontal front-rear direction by a rail-like support member having the same length as the entire length of the load receiving member and a roller pivotally supported on the load receiving member side. There is a problem that the entire load supporting device is large and expensive. In particular, when the biasing means using a horizontal coil spring parallel to the load receiving member as described in Patent Document 1 is used as the biasing means, not only a sufficient vibration damping effect cannot be obtained, Furthermore, since the number of parts increases and the whole load supporting device becomes larger and expensive, it is not practical.

  The 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 for a load storage rack according to claim 1. Is a pair of left and right load receiving members that are long in the front-rear depth direction (X direction) of the load storage compartment 1 inside the left and right partition wall frames 2 of the load storage compartment 1 when shown with reference numerals in the embodiments described later. 3 is a load support device for a load storage rack installed horizontally, and the load receiving member 3 is provided with a pair of front and rear horizontal swing parallel links 10a and 10b on a support member 7 attached to the partition wall frame 2. And a biasing means 14 which is attached so as to be movable in parallel in the front-rear depth direction (X direction) of the load storage section 1 and biases and holds the load receiving member 3 at a fixed position in the parallel movement region. It has become.

  In carrying out the present invention having the above-described configuration, specifically, as described in claim 2, a pair of front and rear support members 7 can be provided corresponding to both ends in the length direction of the load receiving member 3. According to a third aspect of the present invention, the support member 7 is provided with support means 20 for supporting the horizontally swinging parallel links 10a and 10b so as to be relatively movable in the horizontal direction at a position directly below the load receiving member 3. Can do. The support means 20 may be configured such that the bottom surfaces of the horizontal rocking parallel links 10 a and 10 b and the top surface of the support member 7 are in contact with each other via a slide plate 21 as described in claim 4. it can.

  Further, as described in claim 5, the biasing means 14 is provided with a biasing unit 12A incorporated in at least one of the pair of front and rear horizontal swing parallel links 10a and 10b. The urging unit 12A includes at least one vertical fulcrum shaft 15 out of the vertical fulcrum shafts 11 and 15 at both ends of the link 10a, a viscoelastic body 16 externally fitted to the vertical fulcrum shaft 15, and the viscoelastic body 16 The vertical fulcrum shaft 15 having the viscoelastic body 16 externally fitted therein is formed in a prismatic shape incapable of relative rotation with the viscoelastic body 16 and the link. 10a and the other side (that is, the load receiving member 3 or the support member 7) that pivotally supports the link 10a (fixed to the load receiving member 3 in the embodiment), and the holding cylindrical body is a viscoelastic body. Constructed into a rectangular tube that cannot be rotated In addition, of the link 10a and the other side (that is, the load receiving member 3 or the support member 7) that pivotally supports the link 10a, the side opposite to the side on which the prismatic vertical fulcrum shaft 15 is fixed (implementation) In form, it can be fixed to the link 10a).

  When the configuration according to claim 5 is adopted, as shown in claim 6, the load receiving member 3 is composed of a gate member 18 which is open on the lower side, and the urging unit 12A is provided with the link 10a. It can comprise so that it may enter in the inner space of the said cargo receiving member 3 on the upper side. In this case, as described in claim 7, the prismatic vertical fulcrum shaft 15 of the urging unit 12A is fixedly projected downward from the load receiving member 3 side, and the holding cylindrical body 17 extends from the link 10a. The upper end of the holding cylindrical body 17 and the lower side surface of the top plate portion 18a of the load receiving member 3 can be configured to come into contact with each other via the slide plate 19.

  Furthermore, as described in claim 8, a pair of front and rear support members 4a and 4b are provided on the left and right partition wall frames 2 of the load storage compartment 1, and the support members 4a and 4b have a cross-sectional shape in which the inner sides facing each other are opened. The support member 7 can be attached to the side wall plate portions 4c of the front and rear support members 4a and 4b.

  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. The urging force of the urging means is accompanied by a horizontal parallel oscillating motion in the front-rear direction of a pair of front and rear horizontal oscillating parallel links that support the load receiving member between the load receiving member supporting the load and the load receiving member supporting the load. Relative movement occurs, and the load receiving member supporting the load is prevented from swinging back and forth 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 aisle side, and the desired seismic isolation effect can be obtained. The relative movement in the front-rear direction between the support member and the load receiving member is realized by a horizontal parallel swing motion of the horizontal swing parallel link against the biasing force of the biasing means, and after the relative movement, Since the urging force of the urging means automatically returns the load receiving member 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 safely stored continuously. Can do.

  Thus, according to the configuration of the present invention described in claim 1, a pair of front and rear horizontal swings that swing back and forth horizontally as means for supporting the load receiving member horizontally movable in the front and rear depth direction of the load storage section. The use of a moving parallel link eliminates the need for large parts such as a rail-like support member that has the same length as the conventional load receiving member, and multiple rollers that movably support the load receiving member on this support member. Thus, the entire load supporting device can be configured to be simple and lightweight.

  In addition, according to the structure of Claim 2, as a support member attached to the partition frame side of a rack, it is sufficient to provide a pair of front and rear small support members that only support a pair of front and rear horizontal swing parallel links. The structure of the load supporting device is further simplified and can be implemented at low cost.

  According to the configuration of claim 3, the downward bending force acting on the horizontal oscillating parallel link on the support member side can be received without increasing the bending strength against the vertical load of the horizontal oscillating parallel link. Therefore, it is easy to widen the sliding area in the front-rear direction of the load receiving member by increasing the distance between the fulcrum shafts at both ends of the horizontal swinging parallel link, and also reducing the weight of the horizontal swinging parallel link itself. In addition, the load on the vertical fulcrum shafts at both ends of the horizontal swinging parallel link can be reduced, and the service life can be extended. In this case, according to the structure of Claim 4, a structure is simple and can implement cheaply rather than the case where a support means is comprised with a roller and a roller rolling receiving surface.

  According to the fifth aspect of the present invention, the urging means can be incorporated in the vertical fulcrum shaft portion of the horizontal oscillating parallel link, and the torsion coil spring is installed in the vertical fulcrum shaft portion of the horizontal oscillating parallel link. The vibration damping effect of the viscoelastic body can be expected more than the case where it is incorporated as an urging means, and the load is compared with the case where a gas damper is interposed between the horizontal swinging parallel link and the support member or the load receiving member. The entire support device can be made compact and inexpensive. In this case, according to the structure of Claim 6, it can comprise so that the whole urging | biasing means using a viscoelastic body may be accommodated inside a load receiving member, and the whole load support apparatus is comprised more compactly. be able to. Furthermore, according to the structure of claim 7, the holding cylindrical body that holds the viscoelastic body of the biasing unit on the thrust bearing required for the vertical fulcrum shaft between the horizontal swinging parallel link and the load receiving member is provided. Can be used.

  Further, according to the configuration of claim 8, even when the seismic force (amplitude) is large and sufficient seismic isolation effect cannot be expected only by relative movement of the load receiving member within the allowable slide region with respect to the support member, The support member itself is made to move relative to the rack in the front-rear and horizontal directions by using the elastic deformation in the lateral direction of the side wall plate portion of the column material constituting the partition wall frame of the rack, thereby supplementing the seismic isolation effect. be able to. Therefore, the viscoelastic body used in the urging unit of the urging means is useful for downsizing.

  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 material (not shown) at a level that does not interfere with loading and unloading. 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, an embodiment of the present invention will be described in detail. As shown in FIGS. 2 and 3, the pair of front and rear support members 7 are attachment members that are attached to both front and rear support members 4a and 4b so that the height can be changed. 8 is fixed. Both the front and rear strut members 4a and 4b have a cross-sectional shape with the inner sides facing each other open, and the mounting member 8 has a rectangular cross-section projecting sideways of the strut members 4a and 4b as shown in FIG. 2C. It is locked by a pin 9 in a state of being fitted on the side wall plate portion 4c. Each support member 7 is formed by bending a steel plate so as to have a horizontal flat top plate portion 7a and welding a reinforcing vertical plate 7b on the inside, and a base portion close to the mounting member 8 of the top plate portion 7a. The outer end portions of the horizontal swinging parallel links 10a and 10b are pivotally supported by the vertical fulcrum shaft 11 on the upper surface, and both end portions in the length direction of the load receiving member 3 on the inner end portions of the horizontal swinging parallel links 10a and 10b. Is supported via biasing units 12A and 12B incorporating a vertical fulcrum shaft.

  The detailed structure will be described with reference to FIGS. 4 to 6. The vertical fulcrum shaft 11 that pivotally supports the outer ends of the horizontal oscillating parallel links 10a and 10b is fixedly projected on the support member top plate portion 7a by mounting bolts 11a. The bearing pipe member 13 is fixed to the vertical fulcrum shaft 11 so that the bearing pipe member 13 is fixed to the outer end portions of the horizontal oscillating parallel links 10a and 10b made of a square pipe member.

  The urging units 12A and 12B are fixed positions in a slidable region in the front and rear depth direction (X direction) of the load receiving section 1 of the load receiving member 3 accompanied by the horizontal parallel swing motion of the horizontal swing parallel links 10a and 10b, that is, As shown in FIG. 2A, the horizontal swing parallel links 10a and 10b constitute biasing means 14 for biasing and holding the load receiving member 3 at positions where the horizontal swing parallel links 10a and 10b are in the horizontal direction. The vertical fulcrum shaft 15 on the side of the load receiving member 3, the viscoelastic body 16 externally fitted to the vertical fulcrum shaft 15, and the holding cylindrical body 17 externally fitted to the viscoelastic body 16.

  The load receiving member 3 is composed of a gate member 18 that is open on the lower side, and a vertical fulcrum shaft 15 on which the viscoelastic body 16 is externally fitted is a quadrangular prism that cannot be rotated relative to the viscoelastic body 16, and the load receiving member 3 ( It is fixed to the lower surface of the top plate portion 18a of the gate-shaped member 18) by two mounting screws 15a. The holding cylinder 17 is a square cylinder that cannot be rotated relative to the viscoelastic body 16, and is fixedly provided by welding or the like on the upper surfaces of the free end portions of the horizontal oscillating parallel links 10a and 10b. Further, as shown in FIG. 7, a square ring-shaped flange 17a projecting only outward is fixedly connected to the upper end of the holding cylinder 17 by welding or the like, and on this flange 17a, a square ring shape is formed. In addition, a sliding plate 19 made of a material having a small frictional resistance is attached by a mounting screw 19a.

  The support member 7 is provided with support means 20 that supports the horizontal swinging parallel links 10 a and 10 b at a position directly below the load receiving member 3. The support means 20 is a sliding plate made of a material having a small frictional resistance and attached to the upper surface of the free end portion of the support member top plate portion 7a so as to be in sliding contact with the bottom surfaces of the horizontal oscillating parallel links 10a and 10b. 21. The mounting screw 15a for attaching the vertical fulcrum shaft 15 is a countersunk screw that does not protrude from the upper surface (loading surface) of the load receiving member 3, and the mounting screws 19a, 21a for attaching the sliding plates 19, 21 are also these sliding plates 19 The countersunk screw which does not protrude from the sliding surface of 21 is used.

  The load receiving member 3 is assembled by fitting a rectangular cylindrical viscoelastic body 16 into a rectangular columnar space of the holding cylindrical body 17 projecting from the upper surfaces of the free end portions of the horizontal swinging parallel links 10a and 10b. The load receiving member 3 to which the quadrangular columnar vertical fulcrum shaft 15 is attached at a predetermined position below the both ends in the vertical direction (the lower side surface of the gate-shaped material top plate portion 18a), the vertical fulcrum shaft 15 of the viscoelastic body 16 It is carried out by covering so as to be inserted into the square columnar central hole. When the load receiving member 3 is assembled on the horizontal swinging parallel links 10a and 10b in this way, as shown in FIGS. 5 and 6, the lower side surface of the load receiving member 3 (the gate-shaped material top plate portion 18a) is biased. The load receiving member 3 is horizontally supported on the free ends of the pair of front and rear horizontal oscillating parallel links 10a and 10b in contact with the upper end (the upper surface of the sliding plate 19) of the holding cylindrical body 17 of the units 12A and 12B. . The urging units 12A and 12B are in a state of being accommodated in the lower space of the load receiving member 3 (the gate member 18) on the upper side of the horizontal swinging parallel links 10a and 10b.

  At this time, the rectangular cylindrical viscoelastic body 16 has substantially the entire area in the height direction of both the inner and outer side surfaces, the inner surface of the outer holding cylindrical body 17 and the outer surface of the inner quadrangular columnar vertical fulcrum shaft 15. It is comprised so that it may closely_contact | adhere. Further, the horizontal swinging parallel links 10a, 10b are in a state of being laterally oriented at right angles to the front-rear depth direction (X direction) of the load storage section 1, and the load receiving member 3 is the front-rear depth direction (X direction) of the load storage section 1. The vertical outer surfaces of the quadrangular columnar vertical fulcrum shafts 15 and the vertical inner surfaces of the rectangular cylindrical holding cylinders 17 are parallel to each other. In the initial state in which the torsional stress in the circumferential direction is not applied to the viscoelastic body 16 in which the load receiving member 3 is assembled as described above, the horizontal rocking parallel links 10a and 10b are in the depth direction in the front-rear direction of the load storage section 1. The load receiving member 3 is held at the center fixed position of the horizontal swing region in the front-rear depth direction (X direction) of the load storage section 1 while being held in the horizontal direction perpendicular to the (X direction).

  In the load supporting device having the above configuration, when the load is placed on the pair of left and right load receiving members 3, the load on the load receiving member 3 side is the sliding plates 19 of the two front and rear urging units 12A and 12B. The support cylinder 7 is received by the pair of front and rear support members 7 through the holding cylindrical body 17, the horizontal swing parallel links 10 a and 10 b, and the sliding plate 21. Thus, when an external force is applied to move each load receiving member 3 in the front-rear direction, the pair of front and rear horizontal swing parallel links 10 a and 10 b are accompanied by horizontal parallel swing in the movement direction of the load receiving member 3. The load receiving member 3 moves in parallel in the front-rear direction. At this time, the horizontal swinging parallel link with respect to the vertical fulcrum shaft 15 fixed to the load receiving member 3 in the two front and rear biasing units 12A and 12B. The viscoelastic body in which the holding cylindrical body 17 fixed to 10a and 10b rotates relatively, the inner peripheral surface is fixed to the vertical fulcrum shaft 15, and the outer peripheral surface is fixed to the holding cylindrical body 17 16 undergoes torsional deformation in the circumferential direction. In other words, the relative movement in the front-rear direction between the load receiving member 3 and the support member 7 is caused by the urging force of the two urging units 12A and 12B, that is, the torsional elasticity of the viscoelastic body 16 in the circumferential direction. Done against.

  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 integrated with the rack is supported by the urging unit 12A, the load receiving member 3 supporting the load. The load receiving member that supports the load by swinging in the same direction with the horizontal swing motion of the horizontal swing parallel links 10a and 10b against the torsional elasticity in the circumferential direction of the viscoelastic body 16 of 12B. 3 and the support member 7 are moved relative to each other in the front-rear direction, and the load on the load receiving member 3 hardly swings or swings with a small amplitude behind the swing of the support member 7. If the speed and amplitude are within the expected range, the desired seismic isolation effect can be obtained.

  In the above 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 swing direction of the rack (partition wall frame 2) due to an earthquake or the like, the horizontal movement between the support member 7 and the partition wall frame 2 in addition to the relative movement in the horizontal front-rear direction between the support member 7 and the load receiving member 3 is possible. The relative movement in the direction also increases the seismic isolation effect for the load supported by the load receiving member 3.

  The viscoelastic body 16 of the urging units 12A and 12B has horizontal swinging parallel links 10a and 10b that are perpendicular to the front and rear depth direction (X direction) of the load storage section 1 by the torsional elastic restoring force in the circumferential direction. Since it acts so as to automatically return to the horizontal initial posture, when the rack sways, the torsional elastic restoring force in the circumferential direction of the viscoelastic body 16 causes the load receiving member 3 to be in a predetermined position. Returned automatically. At this time, the torsional elastic restoring force in the circumferential direction of the viscoelastic body 16 is the friction between the sliding plate 19 of the urging units 12A and 12B and the lower surface of the load receiving member 3 (the gate-shaped material top plate portion 18a). In addition, the load receiving member 3 on which the load is mounted is returned to the origin against the friction between the lower side surfaces of the horizontal swinging parallel links 10a and 10b and the sliding plate 21 on the support member 7 side.

  A sliding plate 19 is attached to the lower side of the load receiving member 3 (gate-shaped material top plate 18a), and the upper end flange of the holding cylinder 17 of the urging units 12A and 12B is attached to the lower side of the sliding plate 19. 17a (sliding plate 19 may be provided on this side) is also in sliding contact, or a sliding plate 21 is provided on the lower side of horizontal swinging parallel links 10a and 10b. It can also be configured such that the upper surface of the support member 7 (the sliding plate 21 may be provided on this side) is in sliding contact with the side surface.

  Incidentally, the flange 17a at the upper end of the holding cylindrical body 17 is omitted, and the holding cylindrical body 17 is fitted in the holding cylindrical body 17 with the viscoelastic body 16 fitted therein as shown in FIG. A cover member 22 to be externally fitted to the upper end portion is provided, and the quadrangular annular top plate portion 22a of the cover member 22 is configured to also serve as a sliding plate that contacts the lower surface of the load receiving member 3 (top plate portion 18). Can do. Further, as shown in the figure, the rectangular annular top plate portion 22a of the cover member 22 can be projected inward to prevent the viscoelastic body 16 from coming off. Reference numeral 22 b denotes a mounting screw for fixing the cylindrical portion of the cover member 22 to the side surface of the holding cylindrical body 16.

  The interposition positions of the urging units 12A and 12B are not limited to the positions shown in the above embodiment. For example, even when the urging units 12A and 12B are interposed between the horizontal swing parallel links 10a and 10b and the load receiving member 3 as in the above embodiment, the vertical fulcrum shaft 15 is connected to the horizontal swing parallel links 10a and 10b. When fixing to 10b, the urging units 12A and 12B can be configured by fixing the holding cylindrical body 17 to the load receiving member 3 side. It is also possible to interpose the urging units 12A and 12B between the horizontal swinging parallel links 10a and 10b and the support member 7. For example, as shown in the figure, when the vertical fulcrum shaft 11 is fixed to the horizontal swing parallel links 10a and 10b, the holding cylindrical body 17 is fixed to the horizontal swing parallel links 10a and 10b and the urging unit. 12A and 12B can be configured. Conversely, when the vertical fulcrum shaft 11 is fixed to the horizontal swinging parallel links 10a and 10b, the holding cylindrical body 17 is fixed to the support member 7 side. It is also possible to constitute the urging units 12A and 12B. Of course, in order to increase the urging force, the urging units 12A and 12B are provided both between the horizontal oscillating parallel links 10a and 10b and the support member 7 and between the horizontal oscillating parallel links 10a and 10b and the load receiving member 3. Can also be installed. Furthermore, an urging unit may be provided only on either one of the pair of front and rear horizontal swing parallel links 10a and 10b.

  Further, in the above embodiment, the load receiving member 3 is fixed at a fixed position where the load receiving member 3 is biased and held by the biasing means 14 (within the swingable region of the load receiving member 3 accompanied by the horizontal swing of the horizontal swing parallel links 10a and 10b). It is configured so that it can swing in any direction from the position), but it cannot swing back from the fixed position (the side opposite to the side where the traveling path of the rack for loading and unloading the rack is located). You can also.

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 cutaway side view showing one side of the load supporting device. It is a cross-sectional top view which shows the structure between one of the horizontal rocking | fluctuation parallel links, and a load receiving member. It is a partially longitudinal front view which shows the structure. It is a vertical side view which shows the same structure. Fig. A is a longitudinal side view showing a part of the urging unit, and Fig. B is a plan view thereof. Fig. A is a longitudinal side view showing a part of an urging unit according to a modification, and Fig. B is a plan view thereof.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Load storage section 2 Bulkhead frame 3 Load receiving member 4a, 4b Support | pillar material 4c Side wall board part 7 of support material 7 Support member 7a Support member top plate part 8 Attachment member 10a, 10b Horizontal rocking parallel link 11 Vertical fulcrum shaft 12A, 12B With Force unit 13 Bearing pipe material 14 Energizing means 15 Vertical fulcrum shaft 16 Viscoelastic body 17 Holding cylindrical body 18 Gate-shaped material 18a Gate-shaped material top plate portions 19, 21 Sliding plate 20 Supporting means

Claims (8)

  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, and the load receiving member includes: A support member attached to the partition wall frame is attached to a support member attached to the partition frame through a pair of front and rear horizontal swing parallel links so as to be movable in the front-rear depth direction of the load storage section. A load storage device for a load storage rack, provided with a biasing means for biasing and holding.   The load support device for a load storage rack according to claim 1, wherein the support member is provided in a pair of front and rear corresponding to both end portions in the length direction of the load receiving member.   The load of the load storage rack according to claim 1 or 2, wherein the support member is provided with support means for supporting the horizontal swing parallel link so as to be movable in a horizontal direction at a position directly below the load receiving member. Support device.   4. The load support device for a load storage rack according to claim 3, wherein the support means includes a sliding plate interposed between a bottom surface of the horizontal swing parallel link and an upper surface of the support member.   The biasing means includes a biasing unit incorporated in at least one of the pair of front and rear horizontal swing parallel links, and the biasing unit includes at least one of the vertical fulcrum shafts at both ends of the link. A vertical fulcrum shaft, a viscoelastic body externally fitted to the vertical fulcrum axis, and a holding cylindrical body externally fitted to the viscoelastic body. It is in the shape of a prism that cannot rotate relative to the elastic body, and is fixed to either the link or the other side that pivotally supports the link, and the holding cylinder cannot be rotated relative to the viscoelastic body. Any one of Claims 1-4 which are square cylinder shape and are fixed to the opposite side to the side to which the said prismatic vertical fulcrum axis | shaft was fixed among the said link and the other party which pivotally supports the said link. 2. A load support device for a load storage rack according to item 1.   The load storage member according to claim 5, wherein the load receiving member is made of a gate-shaped member that is open on the lower side, and the biasing unit is configured to enter an inner space of the load receiving member on an upper side of the link. Rack load support device.   The prismatic vertical fulcrum shaft of the urging unit is fixedly protruded downward from the load receiving member side, and the holding cylindrical body is fixedly protruded upward from the link, and the upper end of the holding cylindrical body and the load receiver The load supporting device for a load storage rack according to claim 6, wherein the load plate is configured so that a lower surface of the top plate portion of the member abuts via a sliding plate. The left and right bulkhead frames of the load storage compartment are provided with a pair of front and rear support members, each support member having a cross-sectional shape with the inner sides facing each other open, and the support member is a side wall plate of both front and rear support members. The load supporting device for a load storage rack according to any one of claims 1 to 7, wherein the load supporting device is attached to the portion.

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