JPH0318411Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial application field This invention suspends a plurality of movable shelves in a reciprocating manner from a hanger rail installed horizontally above the movable shelves, and adjusts each movable shelf as needed. This invention relates to a suspended movable shelf that can be moved to form a shelf passage along the shelf frontage of a specific movable shelf.

Conventional technology A movable shelf that reciprocates in a direction perpendicular to the shelf frontage while being guided by a rail has conventionally been used.
There are movable shelves that run on the floor and movable shelves that are suspended, but suspended movable shelves do not have rails on the floor like movable shelves that run on the floor, so the floor surface is smooth and does not get in the way of walking. It has the advantage of not being

In the suspended movable shelf, as shown in FIG. 9, each movable shelf 01 is suspended from a hanger rail 04 via running wheels. And this movable shelf 01
The movable shelf 01 is used to move the
A driving wheel 05 is provided at the top of the hanger rail 04, and this driving wheel 05 is in contact with the lower surface of the hanger rail 04. A drive shaft 02 connected to a drive wheel 05
is rotated by the handle 07 via the sprocket 06, chain 09, and sprocket 08, the drive wheel 05 rotates, and the movable shelf 01 is moved onto the hanger rail 04 due to the frictional force between the drive wheel and the lower surface of the hanger rail. move along. handle 0
There is also one in which an electric motor is provided in place of 7, and the driving wheel 05 is driven by the electric motor.

Problems to be solved by the invention However, in the above-mentioned conventional suspended movable shelf,
Since the weight of the movable shelf 01 does not act on the drive wheel 05, it is difficult to obtain a large running force between the drive wheel 05 and the hanger rail 03, and slipping between the drive wheel 05 and the hanger rail 03 is likely to occur.

In particular, in the case of a manually operated movable shelf, as shown in FIG. 10, the movable shelf 01a is made to move by itself by rotating the handle 07a of the movable shelf 01a adjacent to the shelf passage 010a to be formed and closer to the already formed passage 010n. Therefore, from this movable shelf 01a, the pre-formed passage 0
By pressing the movable shelves 01b, 01c...01n on the 10n+1 side, the movable shelves 01a, 01b,...01n are moved all at once, so each movable shelf 0
1a, 01b, . . . 01n is required between the drive wheel 05a and the hanger rail 03, and in the manually operated movable shelf shown in FIG. 9, it is not possible to form the shelf passage 010a. Have difficulty.

In order to overcome this problem, as shown in FIG. 11, a rack 011 is formed on the lower surface of the hanger rail 03 over the entire length of the rail, and a drive A pinion 012 that meshes with this rack 011 is fitted onto the drive shaft 02 instead of the wheel 05, but the rack 01
1 and pinion 012 are expensive and high costs are unavoidable, and rack 011 and pinion 01
Since it is necessary to maintain the meshing accuracy of 2 above a certain level over the entire length of the hanger rail 03, sufficient attention must be paid to the assembly and construction of the movable shelf, and if this meshing accuracy is low, noise may be generated. In addition, the movable shelf 01 cannot be easily moved.

Means and Effects for Solving the Problems Therefore, in the present invention, a plurality of hanger rails installed horizontally above a movable shelf have shelf frontage surfaces extending in a direction perpendicular to the longitudinal direction of the hanger rails. A suspended movable shelf in which a plurality of movable shelves, each of which has a movable shelf, is reciprocably suspended in the longitudinal direction via running wheels provided at the upper part of each movable shelf,
The movable shelf is attached to an arm member to which the running wheel is attached,
Suspended at a position spaced apart from the mounting position of the running wheel in the longitudinal direction of the hanger rail, and attached to the arm member at a position spaced away from the running wheel mounting position on the opposite side to the hanging position of the movable shelf; A drive shaft is pivotally supported along the shelf frontage surface, and drive wheels are provided on the drive shaft to be pressed into contact with the lower surfaces of at least two of the hanger rails, respectively.

According to the present invention, since the mounting position of the running wheel and the mounting position of the movable shelf with respect to the arm member are offset,
Due to the weight of the movable shelf (its own weight and loaded weight), a moment acts on the arm member with the point of contact between the running wheel and the hanger rail as a fulcrum, and this moment presses the driving wheel against the lower surface of the hanger rail. Therefore, sufficient frictional force is generated between the drive wheel and the lower surface of the hanger rail, so when the drive wheel is rotated via the drive shaft, there is no slippage between the drive wheel and the hanger rail, and the drive wheel The rotational force applied to the movable shelf is effectively converted into the running force of the movable shelf, resulting in a large running force.

In this way, in the present invention, by utilizing the weight of the movable shelf, a large running force can be applied to the movable shelf without using a rack and pinion. In addition, the frictional force between the drive wheels and the bottom surface of the hanger rail increases as the weight of the movable shelf increases, so even if the movable shelf becomes heavier, it will not slip, and the running force will be adjusted accordingly. Can be transmitted to the shelf.

Embodiments Hereinafter, the present invention will be described with reference to illustrated embodiments.

As shown in FIGS. 1 and 2, the reinforced concrete structure in which the suspended mobile shelf of this embodiment is installed is composed of a wall 1, a floor 2, and a ceiling 3.
is reinforced with a large beam 4 and a small beam 5 integrally formed so as to be perpendicular to each other on the lower surface thereof. A single fixed unit shelf 6 in which shelf booths are arranged in a row is installed along the side of the wall 1.
With the frontage surface facing the frontage surface, the fixed unit shelf 6
A movable unit shelf, that is, a movable shelf 7, is provided so as to be able to reciprocate toward or away from the. This movable shelf 7 has two shelf booths in the front and back.
These are double unit shelves that are arranged in rows and allow goods to be carried in and out of each shelf booth from both the front and rear sides. A plurality of such movable shelves 7 are arranged in parallel in front and behind, and the rearmost movable shelf 7a, which is the farthest from the fixed unit shelf 6, is a single movable shelf with only a shelf booth facing the fixed unit shelf 6 side. It is becoming.

As shown in FIGS. 1 and 2, each movable shelf 7 has three steel supports 8, 8... having a U-shaped cross section in each of the front and rear frontage portions and in the middle portion in the depth direction, parallel to the frontage surface. The struts 8 arranged in rows and arranged in each frontage section are integrally connected at their upper ends with an upper frontage strut joint member 9 and at their lower ends with a lower frontage strut joint member 10, and are connected to the struts 8 of both frontage sections. It is constructed by connecting a support column 8 in the intermediate portion with a front and rear support support joint member 11. Side plates 12 are attached to both left and right sides, and shelf plates 13 are installed horizontally between each support.
A brace 14 is stretched between the upper and lower ends of the adjacent columns 8, and the intermediate columns 8, 8...
As shown in FIG. 2, the brace 14 extends in a zigzag pattern in a plane parallel to the frontage surface.

Each movable shelf 7 is suspended from a hanger rail 16 through a running wheel 15 provided at the top thereof so as to be able to reciprocate. For this purpose, a girder member 17 made of H-shaped steel is installed on the ceiling 3 in parallel with the extending direction of the girder 4 and anchored thereto, and the hanger rail 16 is attached to the girder member 17 along the lower surface of the girder member 17. It is attached via an integral plate member 18 (FIG. 3). As shown in FIG. 4, the hanger rail 16 is made of a hollow prismatic steel member, and is provided with a slot 19 extending longitudinally in the center of its lower surface. Both side edges of this slot 19 are bent upward to form running passages for the running wheels 15 on both sides of the inside of the hanger rail 16. Note that a ceiling board 20 is stretched so as to contact the side surface of the hanger rail 16 and hide the large beam 4, the small beam 5, and the girder member 17.

A pair of running wheels 15 are provided to fit each of the running passages on both sides, and these running wheels 15 are pivotally supported on a common shaft 21. Axis 2
A connecting rod 22 is integrally provided in the middle part of the hanger rail 16, and the connecting rod 22 passes through the slot 19 and extends downward, and an arm section is provided below the hanger rail 16 and extends back and forth along the rail. 23 to suspend and support it. As shown in the figure, the arm piece 23 has a U-shaped cross section, and the connecting rod 22 is attached to the horizontal portion 24a of the chevron-shaped connecting piece 24 welded across both side plate portions 23a, 23. It is attached by a nut 25 that is screwed into the threaded portion.

An inverted U-shaped bracket 26 is attached to the upper frontage post joint member 9 on one frontage surface of the movable shelf 7 at a position corresponding to the hanger rail 16 with bolts 2.
A bolt-shaped suspension member 28 having a head 28a and a threaded portion 28b passes through the central horizontal portion of the bracket 26. The threaded portion 28b of the suspension member 28 further passes through the bottom plate portion 23b of the arm piece 23 and is fixed to the bottom plate portion 23b by nuts 29, 29. That is, the movable shelf 7 is suspended from the hanger rail 16 via the suspension member 28, the arm piece 23, the connecting rod 22, and the running wheel 15 at the upper part of the one frontage surface. This movable shelf 7 also has, as shown in FIG.
Further, another running wheel 30 is installed at the upper part of the other frontage surface.
suspended directly by.

By the way, the hanging position of the movable shelf 7 with respect to the arm piece 23, that is, the axial position of the hanging member 28, and the mounting position of the running wheel 15 with respect to the arm piece 23, that is, the axial position of the connecting rod 22, are shown in FIG. As shown, they are separated by a distance a in the longitudinal direction of the hanger rail 16. However, the arm piece 23 further includes:
A drive shaft 31 is pivotally supported on the opposite side of the connecting rod 22 from the suspension member 28 at a distance b. This drive shaft 31 is connected to the arm piece 2 in a direction perpendicular to the hanger rail 16, that is, parallel to the shelf frontage surface.
The drive wheel 32 extends rotatably through the side plate portions 23a, 23a of No. 3, and integrally supports the drive wheel 32 between the side plate portions 23a, 23a. The circumferential surface of the drive wheel 32 is in contact with the lower surface of the hanger rail 16.

In this embodiment, as shown in FIG. 2, a total of three hanger rails 16 are provided at both ends in the frontage direction and at the center, and an arm piece 23 is provided for each hanger rail 16. However, the drive wheels 32 pivotally supported by each arm piece 23 are connected by a common drive shaft 31. This drive shaft 31
The gear 3 is driven by a motor 34 fixed to the movable shelf 7.
3, and the rotation of the drive shaft 31 causes all the drive wheels 32 to rotate at the same speed at any given time. 35 is a universal joint inserted into the drive shaft 31.

A moment AW acts on the arm piece 23 due to the weight W of the movable shelf 7, with the contact point A between the running wheel 15 and the hanger rail 16 as a fulcrum. Due to this moment, the drive wheel 32 is pressed against the lower surface of the hanger rail 16 by a force P (P=a/bW).
Therefore, sufficient frictional force is generated between the drive wheel 32 and the lower surface of the hanger rail 16, and when the drive wheel 32 is driven and rotated by the motor 34 as described above, the drive wheel 32 slips and spins idly. There is no problem, and the movable shelf 7 is reliably moved by the rotation of the drive wheel 32. Also, by changing the ratio of the above distances a and b,
The running force applied to the movable shelf can be adjusted to an appropriate value. The pressing force P is proportional to the weight W of the movable shelf 7. Therefore, even if the load on the movable shelf 7 increases and its inertial force increases, there is no problem because the pressing force P increases accordingly and a larger force can be transmitted to the movable shelf 7. A wheel pressure corresponding to the weight W of the movable shelf 7 and the pressure force P is generated on the running wheel 15, but if the driving wheel 32 is provided with rubber lining or the like to increase the coefficient of friction, the ratio of the distance b to the distance a can be reduced. The pressure contact force P may be decreased by increasing the pressure force P.
5 can be reduced by that amount.

In this way, each movable shelf has its own motor 3.
4 to form a shelf passageway along the shelf frontage of a particular movable shelf on which articles are to be taken in and taken out. As described above, each drive wheel 32 is connected to the common drive shaft 31 and rotates at the same speed due to the rotation of the drive shaft 31, so that meandering operation of the movable shelf 7 can be effectively prevented. However, the drive wheels 32 do not necessarily have to be provided corresponding to all the hanger rails. In this embodiment, each movable shelf is driven by a motor 34 to move, but it may also be moved manually by operating a handle connected to the drive shaft 31 via a sprocket, chain, etc. Of course it is possible.

Figures 5 and 6 show other embodiments of the mobile shelf suspension system. In this embodiment, the hanger rail 36 has an I-shaped cross-sectional shape with a flange portion projecting left and right at the lower end of a central vertical plate.
A pair of running wheels 15, 15 pivotally attached to both side wall portions of the support frame 37 having a letter-shaped cross section are respectively placed on the left and right flange portions, and the running wheels 1
The support frame 37 connects to the hanger rail 3 via 5 and 15.
It is suspended from 6. An arm piece 23 substantially similar to that of the previous embodiment is fixed to a support frame 37 with bolts 38. A movable shelf 7 is suspended from the arm piece 23 via a suspension member 28 at a position spaced apart from the running wheel 15 by a distance a, and a distance b from the running wheel 15 on the opposite side. A drive shaft 31 is supported at a separate position.

Note that, as shown in FIGS. 1 and 2, a swing prevention device 39 is provided on the lower surface of each movable shelf 7. This rocking prevention device 39 is shown in FIGS. 7 and 8.
As shown in the figure, the lower frontage post joint member 10
It consists of a fixed frame member 40 fixed to the fixed frame member 40, and a swinging frame member 42 swingably attached to the fixed frame member 40 via a pivot shaft 41 parallel to the shelf frontage surface. A wide wheel 43 whose one end is rubber-lined is rotatably supported around an axis parallel to the pivot shaft 41 . The other end of the swinging frame member 42 is connected to the fixed frame member 40 via a tension coil spring 44, and the wheel 43
is always pressed against the floor surface with an appropriate force by the tension of the tension coil spring 44. Therefore, even in the event of an earthquake or the like, the movable shelf 7 will not swing within a plane parallel to the shelf frontage surface.

Effects of the Invention As described above, in the present invention, a plurality of movable hanger rails are installed on a plurality of hanger rails installed horizontally above a movable shelf, and the shelf frontage surface extends in a direction perpendicular to the longitudinal direction of the hanger rail. In a suspended movable shelf in which a shelf is reciprocably suspended in the longitudinal direction via running wheels provided at the upper part of each movable shelf, the movable shelf is attached to an arm member to which the running wheels are attached, Suspended at a position spaced apart from the mounting position of the running wheel in the longitudinal direction of the hanger rail, and attached to the arm member at a position spaced away from the running wheel mounting position on the opposite side to the hanging position of the movable shelf; A drive shaft extending parallel to the shelf frontage surface is pivotally supported, and a drive wheel is provided on the drive shaft, which is pressed against the lower surface of at least two of the hanger rails, so that the drive wheel is not affected by the weight of the movable shelf. It is pressed against the lower surface of the hanger rail, and sufficient frictional force can be obtained between the two. Therefore, the rotational force of the drive wheels is effectively transmitted to the movable shelf as running force without the drive wheels idling. Moreover, since the pressing force increases as the weight of the movable shelf increases, the movable shelf can always be moved reliably and efficiently without being affected by the load.

[Brief explanation of the drawing]

Fig. 1 is a side view of an embodiment of a suspended movable shelf according to the present invention, Fig. 2 is a front view thereof, and Fig. 3 is a side view partially showing a suspended portion of the movable shelf of the movable shelf. 4 are similar front views, FIGS. 5 and 6 are similar views to FIGS. 3 and 4, respectively, showing other embodiments of the present invention, and FIG. 7 is a movable shelf rocking prevention A side view of the device, FIG. 8 is a rear view of the device, FIG. 9 is a side view of the main part of a conventional suspended manual moving shelf, FIG. 10 is a side view of the entire device, and FIG. It is a diagram. 1... Wall, 2... Floor, 3... Ceiling, 4... Major beam, 5... Small beam, 6... Fixed unit shelf, 7... Movable shelf, 8... Support, 9... Upper frontage support joint member,
10... Lower frontage post joint member, 11... Front and rear support post joint member, 12... Side plate, 13... Shelf board, 14
... Brace, 15 ... Running wheel, 16 ... Hanger rail, 17 ... Girder member, 18 ... Plate member, 1
9...Slot hole, 20...Ceiling plate, 21...Shaft, 22
...Connection rod, 23...Arm piece, 24...Connection piece, 25...Nut, 26...Bracket, 28
... Bolt, 28 ... Suspension member, 29 ... Nut, 30 ... Running wheel, 31 ... Drive shaft, 32 ...
Drive wheel, 33... Gear, 34... Motor, 35...
...Universal joint, 36...Hanger rail, 37...
Support frame, 38... Bolt, 39... Swing prevention device, 40... Fixed frame member, 41... Pivot, 42...
... Swing frame member, 43 ... Wheel, 44 ... Tension coil spring.

Claims (1)

[Scope of utility model registration request] A plurality of movable shelves are provided on a plurality of hanger rails installed horizontally above the movable shelves, and each movable shelf has a shelf frontage extending in a direction perpendicular to the longitudinal direction of the hanger rail. In the suspended movable shelf that is reciprocably suspended in the longitudinal direction via running wheels, the movable shelf is attached to an arm member to which the running wheels are attached, from the mounting position of the running wheels to the longitudinal direction of the hanger rail. The movable shelf is suspended at a position spaced apart from the movable shelf, and the arm member pivotally supports a drive shaft extending along the shelf frontage surface at a position spaced away from the running wheel mounting position on the opposite side of the movable shelf from the hanging position. A suspended movable shelf, characterized in that the drive shaft is provided with drive wheels that are pressed into contact with the lower surfaces of at least two of the hanger rails.