JPH0515445B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a stacked movable shelf in which the lower layer is a fixed shelf and the upper layer is a movable shelf. Regarding mobile shelves.

Prior Art Conventionally, in the case of stacked movable shelves, the lower layer must support the weight of the upper layer, so it is generally difficult to create a movable shelf due to the need for a stable support structure. The lower layer is a fixed shelf and the upper layer is a movable shelf.

In such an upper layer movable shelf, when converging, adjacent frontages collide with each other and can run in the depth direction, and the movable shelf runs to form a passage only on the frontage surface of the required shelf, so the passage area is small. The storage efficiency for the installation area is extremely high.

Usually, such a movable shelf is provided with a locking mechanism to prevent it from moving unintentionally, thereby ensuring safety by prohibiting movement.

Problems to be Solved As mentioned above, the upper movable shelf has high storage efficiency, and the weight of stored items on the upper movable shelf is more than twice that of the lower fixed shelf.

The horizontal force generated by vibrations such as earthquakes on the upper floor supporting such heavy objects becomes extremely large, and the lower structure needs to be strong and strong in order to withstand this force.

Furthermore, due to the unique structure of stacked shelves using single-post bookshelves used in libraries, etc., sufficient strength can be secured against vibrations in the frontage direction with braces; Because of this, it is not possible to use braces, etc., and the wall of the building in the depth direction of the shelf bears the horizontal force of the upper floor.

In particular, when the upper movable shelf is prohibited from traveling by a lock mechanism and moves together with the upper floor, the horizontal force generated on the upper floor is extremely large, and therefore the load on the front and rear walls is extremely large. In order to withstand this, it is necessary to further strengthen the structure by increasing the thickness of the walls, which increases the construction cost of the building and may make it difficult to install it in an existing building.

Furthermore, if there is vibration such as an earthquake while the movable shelf is in the locked state, the stored items will not easily fall due to vibrations in the direction of the shelf width, but will be more likely to fall due to vibrations in the depth direction. Furthermore, there is a risk that the movable shelf itself may fall.

The present invention has been made in view of the above, and its purpose is to maintain the necessary strength without making the lower structure of the stacked movable shelf as strong as the conventional structure, and to prevent the falling and movement of stored items. To provide a laminated seismically isolated movable shelf capable of avoiding overturning of the shelf as much as possible at a low cost.

Means and Effects for Solving the Problems The present invention provides a stacked movable shelf in which a fixed shelf is arranged in a lower layer and a movable shelf is arranged in an upper layer, in which the frontage surface of the upper movable shelf is connected to the frontage surface of the lower fixed shelf. The rail of the movable shelf is a stacked seismic isolation movable shelf supported so as to be movable within a predetermined range in the same direction as the traveling direction of the movable shelf with respect to the upper floor.

The upper movable shelf and the lower fixed shelf have their openings facing in the same direction, and the rails of the upper movable shelf are supported movably in the same direction as the traveling direction relative to the upper floor, so earthquakes, etc. Even if there is vibration, we ensure earthquake resistance by using a brace structure, etc. against vibration in the direction of the shelf frontage, and the upper movable shelf will resist vibration in the depth direction of the shelf, which is the traveling direction of the movable shelf. It is movable with respect to the upper floor along with the rails, can absorb vibrations, maintains seismic strength without making the lower structure too rigid, and facilitates construction.

In addition, since vibrations in the depth direction of the shelf where stored items tend to fall are absorbed, it is possible to prevent items stored on the movable shelf from falling and the movable shelf itself from falling as much as possible.

Embodiment An embodiment of the present invention illustrated in FIGS. 1 to 7 will be described below.

FIG. 1 is an overall front view of a stacked movable shelf according to this embodiment installed in a building, and FIG. 2 is a side view of the same.

The stacked movable shelves are located between the floor 1 and ceiling 2 of a building and are divided into an upper layer and a lower layer by an upper floor 3. The lower layer is a fixed shelf 5 with a single-column bookshelf structure, and the upper layer is a movable shelf 10. are arranged, and both shelves 5 and 10 have the shelf frontage direction in the same direction.

The lower fixed shelf 5 has a plurality of unit shelves arranged in the depth direction at predetermined intervals, and each unit shelf has a shelf board 7 installed between adjacent pillars 6 to form a shelf booth. There is.

Adjacent pillars 6 each have a catch seat 8 at their upper end.
A beam 24 oriented in the depth direction of the shelf is connected through the shelf, and both ends of the beam 24 are fixed to the wall 4 of the building.

Further, each fixed unit shelf is provided with a brace 9 between adjacent pillars 6 parallel to the shelf frontage surface.

On the other hand, the fixed shelf 10 has a support 13 erected on an underframe 12 to which wheels 11 are attached on the underside, a top plate 14 is installed on the upper end of the support, and a plurality of shelf boards 15 installed between the support supports 13 are used to store the fixed shelf 10. Booths are formed, and by rotating a handle 17 provided on each movable shelf 10, the movable shelves 10 run on rails 18 laid in the longitudinal direction on the upper floor 3 via wheels 11.

Note that each movable shelf 10 is also appropriately provided with a brace 16.

Although not shown, a lock device is provided to prohibit the vehicle from running.

In the stacked movable shelf having the above configuration, the upper floor 3 supports the upper movable shelf in a movable manner.
The structure of the portion will be explained based on FIGS. 3 to 7.

The beam 24 installed in the front-rear direction has two horizontal frames each having a U-shaped cross section, which are oriented in the depth direction of the shelf and are in contact with each other back-to-back to support bolts 25 and nuts 26.
Fixed by

An upper floor member 27 is placed between the adjacent left and right beams 24.
A plurality of upper floor members 27 are laid in contact with each other in the front and back, and a floor surface member 28 is stretched over the upper floor members 27.

The upper floor member 27 has a cross section shaped like a square with a portion of the lower part cut out, and has a predetermined vertical width.

A groove space is formed above the beam 24 between the left and right upper floor members 27, and a rail support structure is configured in the groove space.

A gutter-shaped board 31 is welded to the upper surface of the beam 24, which is made up of two horizontal frames that are in contact with each other. One end of each cover member 32 is screwed with a bolt 33 and a nut 34.

The left and right cover members 32 are bent in a step-like manner and extend inward from the fixed portion in a direction toward each other, with a constant interval provided therebetween.

A support stand 35 having a U-shaped cross section is placed on the left and right flanges screwed by bolts 33 and nuts 34, and supports the edge of the floor surface member 28 stretched over the upper floor member 27 at the same time. Supported by a support stand 35,
A cover member 32 is located in contact with the edge of the floor surface member 28 on the same plane.

The vicinity of the front end of the groove formed by the substrate 31 and the cover member 32 is illustrated in FIGS. 5 and 6.

A rail closing plate 36 is applied to the front and rear end openings of the board 31 and the cover member 32, and a rail support structure is configured in the groove formed by the board 31, the cover member 32, and the rail closing plate 36. has been done.

The rail support structure includes a moving member 40 and a supporting member 45 that movably supports the moving member 40, as shown in FIG.

The moving member 40 includes a rail receiving plate 42 with the rail 18 laid in the center, a cover plate 43 welded to the lower surface of the rail receiving plate 42, and affixed to the front and rear end surfaces of the rail receiving plate 42 and the cover plate 43. The receiving plate 44 is integrally constructed.

The rail receiving plate 42 has a shape in which the left and right ends are bent upward from the horizontal part where the rail 18 is laid, and the edge is further bent inward, and the bent edge is approximately at the same height as the rail 18. It is in.

Further, the cover plate 43 has left and right ends bent downward from the horizontal portion to which the rail receiving plate 42 is welded, and has a left and right width slightly wider than the rail receiving plate 42, forming a concave portion opening downward.

On the other hand, in the support member 45, a plurality of rollers 47 are rotatably supported between a pair of left and right bearing plates 46 that are elongated and face each other in the front and rear.
8 is fixed, and a buffer rubber 49 is attached to the closing plate 48.
protrudes outward.

The roller 47 has an outer diameter larger than the vertical width of the bearing plate 46, and a portion thereof is exposed above and below the bearing plate 46.

The supporting member 45 is fitted into a recess formed by the cover plate 43 and the receiving plate 44 at the lower part of the movable member 40, the upper part of the roller 47 rolls into contact with the horizontal surface of the cover plate 43, and the buffer rubber 49 is inserted into the receiving plate. The movable member 40 and the support member 45 are able to move in the front and rear directions relative to each other by abutting against the inner surface of the plate 44 and deforming the buffer rubber 49 .

Note that movement in the left-right direction is restricted by downwardly bent portions of the cover plate 43 on the left and right sides.

When the moving member 40 and the supporting member 45 combined in this way are fitted into the groove formed by the base plate 31, the cover member 32, and the rail closing plate 36, the lower part of the roller 47 is inserted into the base plate 31. The upper surface makes rolling contact to support the support member 45 so as to be movable in the front-rear direction.

In this state, the moving member 40 and the supporting member 4
5, the movement in the left and right direction is restricted by the left and right side walls of the board 31, and the rail 18 on the rail receiving plate 42
Both side portions of are covered with cover members 32.

In addition, a buffer rubber 37 is fixed to the rail closing plate 36 provided at the front and rear ends of the board 31 with a stud bolt 38 and a nut 39 and protrudes inwardly, and is provided at the front and rear of the fitted moving member 40. It is in contact with the receiving plate 44 (see FIGS. 5 and 6).

The wheels 11 of the movable shelf 10 are placed on the rails 18 supported by the support structure described above.

This embodiment is a stacked moving shelf having the structure described above.

When subjected to vibrations such as earthquakes, both the fixed shelf 5 and the movable shelf 10 have a brace structure with the same shelf width, so the shelves themselves have high strength against vibrations in the shelf width direction. This puts less stress on the building, maintains high earthquake resistance, and reduces the chance of items stored on each shelf falling.

On the other hand, in response to vibrations in the shelf depth direction, even if the movable shelf 10 is in a locked state and is prohibited from moving, the upper end of the column 6 of the lower fixed shelf 5 is connected and supported, and the weight of the upper movable shelf 10 is Since the rail 31 itself is movable back and forth with respect to the upper floor 3 that supports the upper floor 3, the horizontal force generated on the upper floor 3 is significantly reduced, and the burden on the walls 4 of the building is also reduced.

Therefore, seismic strength can be maintained without increasing the thickness of the wall 4 or making the lower structure of the stacked shelves strong, making construction easy and inexpensive.

In addition, even in cases where conventional stacked movable shelves are difficult to install due to the structure of the building and reinforcement is difficult, the above stacked seismic isolation movable shelves can be installed. There is a wide range of application.

Note that the rail 18 moves relative to the longitudinal vibration of the upper floor 3, absorbs the vibration by deformation of the buffer rubber 37, 49, and the rail 18 and the movable shelf 1
Since the transmission of vibration to the movable shelf 10 is suppressed, even when the movable shelf 10 is in the locked state, it is possible to prevent the stored items from falling and the movable shelf 10 itself from overturning as much as possible.

Furthermore, if the movable shelf 10 is shaken in the longitudinal direction while it is unlocked, the seismic isolation effect prevents the movable shelf 10 from moving rapidly, making it safe.

Next, a modified example of the rail support structure provided on the upper floor will be illustrated and explained in FIGS. 8 and 9.

A rail support structure is constructed in the premises formed by a board 61 and a cover member 62 on the upper floor 60,
The parts other than the rail support structure are substantially the same as the front and rear embodiments.

A roller 64 is rotatably supported between bearings 63 that are erected to face each other on the bottom surface of the board 61, and a plurality of rollers 64 that are supported in this way are arranged in the front and back direction, and a rail is mounted on the rollers 64. A receiving plate 65 is mounted so as to be movable in the front and rear direction, and the rail receiving plate 65
A rail 66 is laid on top of the rail.

The rail receiving plate 65 has a left-right width approximately equal to the width of the groove between the left and right cover members 62, and movement of the rail receiving plate 65 and the rail 66 in the left-right shelf frontage direction is restricted by the cover member 62.

Also, although not shown, both front and rear ends of the rail receiving plate 65 are in contact with buffer rubber provided at both ends of the groove as in the previous embodiment, and the buffer rubber is used to support the upper floor 60 in the horizontal back and forth direction. vibrations are absorbed, vibration transmission to the rails 66 is suppressed, and the horizontal force on the upper floor 60 can be reduced.

Further, another modification of the rail support structure is illustrated and explained in FIGS. 10 and 11.

The structure other than the rail support structure is the same as that of the previous embodiment, and the rail support structure is constructed within the premises formed by a board 71 and a cover member 72 on the upper floor 70.

That is, a sliding receiving member 73 made of resin and having a slippery surface is laid on the bottom surface of the board 71, oriented in the front-rear direction, and a rail receiving plate 75 on which a rail 76 is laid.
A plurality of sliding members 74 are fixed to the lower surface of the slide receiving member 73, and the sliding members 74 slidably contact the sliding receiving member 73 to support a rail 76.

It is sufficient that either one of the sliding receiving member 73 and the sliding member 74 is made of a slippery resin.

Similar to the embodiment described above, the movement of the rail receiving plate 75 in the left-right direction is regulated by the cover member 72, and cushioning rubber (not shown) is interposed between the front and rear ends of the rail receiving plate 75 and both ends of the groove. Therefore, the vibration in the horizontal longitudinal direction of the upper floor 70 is absorbed by the buffer rubber, the transmission of vibration to the rail 76 is suppressed, and the horizontal force on the upper floor 70 can be reduced.

In the above embodiments, cushioning rubber is used as the cushioning member, but a vibration attenuator such as a damper may be interposed at the same time.

Effects of the Invention In the present invention, both the lower fixed shelf and the upper movable shelf have the same shelf frontage direction, so both shelves have a simple structure with braces, etc. to withstand vibrations in the frontage direction during earthquakes. It is possible to ensure the stability of the storage, and there is less chance of the stored items falling out.

In addition, in response to vibrations in the depth direction of the shelves, the rails are movable relative to the upper floor, so the horizontal force on the upper floor can be significantly reduced, making the lower structure of the stacked shelves stronger and building itself. Reinforcement to increase the strength of the structure is not required as much as possible, simplifying construction and reducing costs.

Furthermore, the longitudinal vibration of the upper floor is absorbed by the movement of the rails, and the transmission of vibration to the movable shelf is suppressed, so it is possible to prevent the movable shelf from moving suddenly and ensure safety, as well as to prevent the storage of stored items. Falling can also be prevented as much as possible.

[Brief explanation of the drawing]

Fig. 1 is an overall front view of a stacked seismic isolation movable shelf according to an embodiment of the present invention, Fig. 2 is a side view of the same, Fig. 3 is a longitudinal sectional front view of main parts, and Fig. 4 is a side view of the same, and Fig. 4 is a front view of the main part. 5 is a front view of the main part, FIG. 6 is a side view of the same, FIG. 7 is an exploded perspective view of the main part, FIG. 8 is a vertical sectional front view of the main part of another embodiment, FIG. 9 is a side view of the same, and FIG. The figure is a longitudinal sectional front view of a main part of yet another embodiment, and FIG. 11 is a side view of the same. 1...floor, 2...ceiling, 3...upper floor, 4...wall, 5...
Fixed shelf, 6... Pillar, 7... Shelf board, 8... Receiver, 9... Brace, 10... Movable shelf, 11... Wheel, 12... Underframe,
13... Support column, 14... Top plate, 15... Shelf board, 16... Brace, 17... Handle, 18... Rail, 24...
Beam, 25... Bolt, 26... Nut, 27... Upper floor member, 28... Floor surface member, 31... Substrate, 32... Cover member, 33... Bolt, 34... Nut, 35...
Support stand, 36...Rail closing plate, 37...Buffer rubber,
38... Stud bolt, 39... Nut, 40... Moving member, 42... Rail receiving plate, 43... Cover plate, 44...
Reception plate, 45...Supporting member, 46...Bearing plate, 47...Roller, 48...Closing plate, 49...Buffer rubber, 60...Upper floor, 61...Substrate, 62...Cover member, 63...Bearing, 64...Roller, 65 ...Rail receiving plate, 66...Rail, 70...Upper floor, 71...Substrate, 72...Cover member, 73...Sliding receiving member, 74...Sliding member, 75
...Rail receiving plate, 76...Rail.

Claims (1)

[Claims] 1. In a stacked movable shelf having a fixed shelf on the lower layer and a movable shelf on the upper layer, the frontage surface of the upper layer movable shelf is in the same direction as the frontage surface of the lower layer fixed shelf,
The stacked seismically isolated movable shelf is characterized in that the rail of the movable shelf is supported to be movable within a predetermined range in the same direction as the traveling direction of the movable shelf with respect to the upper floor.