JPH0242644Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial application field This invention suspends movable shelves in a reciprocating manner from a hanger rail installed horizontally above the movable shelves, and moves each movable shelf as necessary. The present invention relates to a suspended movable shelf in which a shelf passage can be formed along the shelf frontage surface of the 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 two types of movable shelves: floor-mounted movable shelves and suspended-type movable shelves. Unlike floor-travelable movable shelves, suspended-type movable shelves do not have rails on the floor, so the floor surface is smooth and easy to walk on. It has the advantage of not getting in the way.

In a suspended movable shelf, each movable shelf is suspended from a hanger rail via running wheels. And in order to drive this movable shelf back and forth,
A drive wheel is provided at the top of the movable shelf, and this drive wheel contacts the lower surface of the hanger rail. When the drive shaft connected to the drive wheel is rotated manually by a handle via a transmission mechanism such as a chain or gear, or by an electric motor, the drive wheel rotates and the space between the drive wheel and the lower surface of the hanger rail is rotated. The movable shelf moves along the hanger rail due to frictional force.

Problems to be Solved by the Invention However, in such a suspended movable shelf, since each movable shelf is suspended from above by a hanger rail, there is a problem in that each shelf is susceptible to shaking in the event of an earthquake or the like.

Therefore, the present invention aims to provide a suspended movable shelf equipped with an anti-sway device that can prevent the shelf from shaking.

Means and Effect for Solving the Problems Therefore, in the present invention, a hanger rail installed horizontally above a movable shelf is provided with a shelf frontage extending in a direction perpendicular to the longitudinal direction of the hanger rail. In the suspended movable shelf in which a movable shelf is reciprocably suspended in the longitudinal direction, the bottom surface of the movable shelf is urged downwardly by a spring to be pressed against the floor surface of the building and in the perpendicular direction. A rotatable friction ring is attached around the oriented axis.

According to the present invention, since the friction ring is always pressed against the floor of the building by the force of the spring, the friction force acting between the friction ring and the floor causes the movable shelf to move in the direction of the shelf frontage. Shaking can be effectively prevented. Moreover, since this friction ring is rotatably mounted around an axis perpendicular to the moving direction of the movable shelf, it does not provide any resistance to the movement of the movable shelf, and the movable shelf can freely reciprocate. be able to. The friction ring reliably presses against the floor even if it is sloped or uneven.

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 openings. 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 so as 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
1, 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. The arm piece 23 has a U-shaped cross section as shown in the figure, and has side plate portions 23a, 23a.
The connecting rod 22 is attached to the horizontal portion 24a of the chevron-shaped connecting piece 24 welded across the gap by a nut 25 that is screwed into the threaded portion of the connecting rod 22.

An inverted U-shaped bracket 26 is attached to the upper frontage support support 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.
In this arrangement, an arm piece 23 is provided for each hanger rail 16, and a drive wheel 32 pivotally supported by each arm piece 23 is connected by a common drive shaft 31. ing. This drive shaft 31 is driven by a gear 33 by a motor 34 fixed to the movable shelf 7.
The rotation of the drive shaft 31 causes all the drive wheels 32 to rotate at the same speed. 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. 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 inertia increases, the pressure contact force P will increase accordingly.
increases, and a larger force can be transmitted to the movable shelf 7, so there is no problem. An infusion pressure corresponding to the weight W of the movable shelf 7 and the pressing force P is generated in 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, and thereby the running wheel 15
The increase in transfusion pressure can be reduced accordingly.

In this way, each movable shelf has its own motor 3.
4 to form a shelf passageway along the shelf frontage of the specific movable shelf on which articles are to be taken out and put in. In this embodiment, each movable shelf is moved by being driven by a motor 34, but it may also be moved manually by operating a handle connected to the drive shaft 31 via a sprocket, a chain, etc. Of course it is possible.

The movable shelf 7 has running wheels 1 on the hanger rail 16.
Since it is suspended and supported via 5 and 30, it is susceptible to shaking during an earthquake, for example. Therefore, as shown in FIGS. 1 and 2, a swing prevention device 39 is attached to the bottom surface of each movable shelf 7. As shown in FIGS. 5 and 6, this anti-swing device 39 has the following features:
It has a fixed frame member 40 with an inverted U-shaped cross section, and the member 4
Attachment part 4 formed to protrude back and forth on the top surface of 0
0a, 40b are fixed to the front and rear lower frontage post joint members 10, 10, respectively, with bolts 45, 45. Similarly, there is an inverted U on the inside of this fixed frame member 40.
A swinging frame member 42 having a letter-shaped cross section is arranged in parallel, and the swinging frame member 42 is connected to the fixed frame member 40.
via a pivot shaft 41 so as to be swingable. The pivot shaft 41 extends parallel to the frontage surface of the movable shelf 7, and therefore the swinging member 42 extends back and forth in the depth direction of the movable shelf 7. The rear part of the swing frame member 42 (the fifth
A friction ring 43 is rotatably mounted on the left side in the figure via a rotating shaft 46 extending parallel to the shelf frontage surface, and the lower part of the friction ring 43 is located below the fixed frame member 40 and the swing frame member 42. It protrudes downward from the edge.

A spring mounting piece 4 is attached to the lower front end of the swing frame member 42.
7 is fixedly installed, and a spring, ie, a tension coil spring 44, is tensioned between the mounting piece 47 and the mounting portion 40a of the fixed frame member 40. Therefore, the swing frame member 42 is biased by the tension of the tension coil spring 44 to rotate counterclockwise in FIG. Pressed. 2a is a flooring layer such as tiles laid out on the surface of the floor 2;
The friction ring 43 is pressed against this flooring layer 2a. The friction ring 43 is formed to be relatively wide and has a rubber lining on its circumferential surface, and is coated with the flooring layer 2.
It is designed so that sufficient frictional force can be obtained between it and the surface of a. A thin floor protection tape made of a material that is wear-resistant and has a large coefficient of friction may be attached to the surface portion of the flooring layer 2a that comes into contact with the friction ring 43.

As described above, the friction ring 43 is always pressed against the floor surface by the force of the tension coil spring 44, so when the movable shelf 7 tries to move in the direction of the shelf front surface, the friction ring 43 and the floor surface are pressed against each other. This oscillation can be prevented by the frictional force between them. When the movable shelf 7 is guided by the hanger rail 16 and travels in its longitudinal direction, the friction ring 43 rotates freely as the movable shelf 7 moves, and does not provide any resistance to the travel of the movable shelf 7. In addition, the friction ring 43
Since the cylindrical circumferential surface of the pedestal only contacts the floor surface, the floor surface is smooth and does not interfere with walking. This anti-sway device also serves to prevent the shelf from tilting due to eccentric loads and to maintain its verticality.

7 and 8 show a rocking prevention device 39 in another embodiment of the present invention. This anti-swing device has substantially the same structure as the anti-swing device in the previous embodiment, and similar parts are given the same reference numerals. Friction ring 43 in this embodiment
has rolling wheel portions 48 on both sides. and floor 2
two shallow grooves 51 provided in a guide rail member 50 fixed by an anchor bolt 49 on the top;
The roller portions 48, 48 are fitted into the grooves 51, respectively, so that the friction wheels 43 roll while being guided by the grooves 51 when the movable shelf 7 travels. Since the friction ring 43 is pressed against the floor surface by the tension coil spring 44 as described above,
Even if the floor has a slight inclination, the wheel rolling portion 48 will not come off the groove 51. Although the groove 51 may be extremely shallow, the thickness of the guide rail member 50 can be approximately the same as the thickness of the flooring layer 2a. Therefore, when laying the guide rail member 50, there is no need to cut down into the concrete frame, making the construction easy. Also, the guide rail member 5
0 does not protrude above the floor surface, and a smooth floor surface can be ensured as in the previous embodiment. It is not always necessary to provide two rolling wheel portions 48 on the left and right sides, and one rolling wheel portion may be fitted into one groove 51.

In the above embodiment, the hanger rail is installed on the ceiling of the building, but a movable shelf is constructed in which the hanger rail is spanned between fixed unit shelves installed at both ends, and movable shelves are suspended from the hanger rail. Of course, it is also possible to apply the present invention to.

Effects of the Invention As described above, in the present invention, a movable shelf is provided on a hanger rail installed horizontally above the 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 that is reciprocably suspended in the longitudinal direction, the bottom surface of the movable shelf is urged downwardly by a spring to be in pressure contact with the floor surface of the building, and about an axis oriented in the perpendicular direction. Equipped with a rotatable friction ring,
The friction force acting between the friction ring and the floor surface can effectively prevent the movable shelf from swinging in the direction of the shelf front surface, and this friction ring does not provide any resistance to the movement of the movable shelf. , The movable shelf can freely reciprocate. The friction ring reliably presses against the floor even if the floor is sloped or uneven.

[Brief explanation of the drawing]

Fig. 1 is a side view showing 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 showing a part of the movable shelf suspended portion of the movable shelf in cross section. 4 is a similar front view, FIG. 5 is a side view of the movable shelf rocking prevention device, FIG. 6 is a rear view thereof, and FIGS. 7 and 8 show other embodiments of the present invention. These figures are similar to FIGS. 5 and 6, respectively. 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, 20...Ceiling board, 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... Pivoting shaft, 42
... Swing frame member, 43 ... Friction ring, 44 ... Tension coil spring (spring), 45 ... Bolt,
46... Rotating shaft, 47... Spring mounting piece, 48...
...Rolling portion, 49...Anchor bolt, 50...Guide rail member, 51...Groove.

Claims (1)

[Scope of utility model registration request] A suspended type in which a movable shelf with a shelf frontage extending perpendicularly to the longitudinal direction of the hanger rail is suspended from a hanger rail installed horizontally above the movable shelf so as to be able to reciprocate in the longitudinal direction. The movable shelf is characterized in that a friction ring is mounted on the bottom surface of the movable shelf, the friction ring being urged downward by a spring, pressed against the floor surface of the building, and rotatable around an axis oriented in the perpendicular direction. A suspended mobile shelf.