JP2002101973A - Hand-operated movable shelf apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a hand-operated movable shelf apparatus capable of having a speed reducing interlocking mechanism for transmitting the turning force of a power shaft rotated by hand-operation to a rotating shaft of a driving wheel to minimize the center distance between the power shaft and the rotating shaft, rotating both shafts in the same direction, and to especially provide the movable shelf apparatus with a small depth suitable for storing small-depth articles such as CD, MD and the like. SOLUTION: A driving wheel 4 and single or plural driven wheels 5 are provided in the respective positions corresponding to the respective rails 3 at the lower ends of the movable shelf, a gear holder 22 having a cylindrical holding part 23 is fixed to the front end part of the rotating shaft 12 of the driving wheel, a ring-like inner gear 24 is fitted to the holding part of the gear holder, and an outer gear 25 meshing with the inner gear is formed at the rear end part of the power shaft 14 manually rotated. In this arrangement, the power shaft is driven to rotate, thereby moving the movable shelf.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a manual moving shelf apparatus in which a plurality of moving shelves are arranged so as to be movable with respect to each other.
More specifically, the present invention relates to a manual moving shelf apparatus suitable for storing small-depth-width articles such as video tapes, CDs, and MDs.

[0002]

2. Description of the Related Art Conventionally, a plurality of moving shelves having wheels driven and rotated by a manual or electric motor are movably arranged along rails laid in a direction perpendicular to their entrance and exit surfaces. There have been provided various types of manual moving shelves in which a passage having a predetermined width is formed between the shelves by moving the shelves. Then, the user operates an operation handle provided on the front of each moving shelf or a switch on the front panel, and rotationally drives the wheels via the drive transmission system from the rotational force of the operating handle or the electric motor to thereby move the wheels between predetermined moving shelves. Alternatively, a passage is formed between the fixed shelf and the movable shelf arranged at the side end, and a user enters the passage, and articles such as books and files are put in and out from the entrance surface facing the passage.

[0003] Except for the fixed shelf located at the end fixed to the wall surface side, each movable shelf has a double-sided storage type structure so that articles can be taken in and out from the front and rear surfaces. The depth is set so that the articles can be stored. Therefore, since the depth of the moving shelf in the moving direction is sufficiently large, two wheels are provided before and after the lower end along each rail, and one of the wheels is used as a driving wheel, and the other wheel is used as a driven wheel. I have. In the case of the manual type, as disclosed in Japanese Utility Model Publication No. 56-1224, a large-diameter sprocket is fixed to a rotating shaft of a driving wheel, and a small-diameter sprocket is mounted on a power shaft to be manually rotated. A chain is wound around both sprockets, and a large-diameter sprocket is fixed to the front end of the power shaft, and a small-diameter sprocket is fixed to the drive shaft of the operation handle provided in the middle panel on the front panel of the moving shelf. By winding a chain around these two sprockets and rotating the operation handle, the drive wheels are rotated and moved in the same direction as the rotation.

However, a moving shelf suitable for storing articles having a small depth such as a video tape, a CD, and an MD has a depth in the moving direction which is only about half the depth of a standard type moving shelf. It becomes difficult to provide a large-diameter sprocket provided at the front end of the rotating shaft of the wheel and a small-diameter sprocket provided at the rear end of the power shaft side by side in terms of space. If both sprockets are arranged vertically, the space on the left and right can be small, but the space on the top and bottom is large and the storage space is greatly reduced. here,
It is also considered that the large and small spur gears fixed to the rotating shaft and the power shaft are meshed with each other to interlock with each other, but since the rotating shaft rotates reversely with respect to the rotation of the power shaft, the operability becomes very poor. Can not be adopted.

[0005]

SUMMARY OF THE INVENTION In view of the above-mentioned situation, the present invention is directed to a speed reduction interlocking mechanism for transmitting the torque of a power shaft to be manually rotated to the rotation shaft of drive wheels. A mechanism that can minimize the distance between the power shaft and the rotating shaft and can rotate both shafts in the same rotation direction, and is particularly suitable for storing small-depth-width articles such as CDs and MDs. Provided is a manual moving shelf device which is effective for a moving shelf having a small depth width.

[0006]

According to the present invention, in order to solve the above-mentioned problems, a plurality of moving shelves are arranged so as to be movable along a plurality of rails, and adjacent moving shelves relatively move. A driving wheel and one or more driven wheels are provided at a position corresponding to each rail at the lower end of the moving shelf, and a driving wheel is provided. The holding part fixes the cylindrical gear holder to the front end of the rotating shaft of the wheel, and the ring-shaped internal gear is attached to the holding part of the gear holder, while the rear end of the power shaft that is manually rotated is mounted. An external gear that meshes with the internal gear is formed, and the power shaft is driven to rotate so that the movable shelf can be moved to form a manual movable shelf device.

Here, a large-diameter sprocket is fixed to the front end of the power shaft, and a small-diameter sprocket is fixed to the drive shaft of an operation handle provided at the middle stage of the front panel of the moving shelf. To amplify the torque of the operation handle and transmit it to the power shaft.

In addition, one driving wheel is provided at a center portion in the moving direction at a position corresponding to each rail at the lower end of the moving shelf, and has a smaller diameter before and after the driving wheel. There are provided driven wheels.

[0009] The depth of the storage section of the movable shelf is set to a small width suitable for storing small-depth-width articles such as video tapes, CDs, and MDs. If the above-described deceleration interlocking mechanism is applied to such a small-width storage shelf, the effect becomes remarkable.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described in more detail with reference to the accompanying drawings. 1 to 4 schematically show the entirety of a manual moving shelf apparatus according to the present invention, and FIGS. 5 to 7 show main parts of the present invention. In the drawings, reference symbol A denotes a small-width moving shelf, and B denotes a standard-width moving shelf. , C are fixed shelves, 1 is a truck, 2 is a storage section, 3 is a rail, 4 is a driving wheel, 5 is a driven wheel, and 6 is a passage.

The manual moving shelf device of the present embodiment is a
A drive wheel 4 having a smaller diameter than the drive wheel 4 before and after the drive wheel 4 which is manually driven to rotate;
A plurality of small-width movable shelves A, A and two standard-width movable shelves B, B are provided on a plurality of rails 3, Are arranged so as to be movable with respect to each other, and fixed shelves C, C are provided at both ends. The adjacent movable shelves A, A, B, and B relatively move to form a passage 6 having a predetermined width between them, and an operator enters the passage 6 to enter the video from the entrance surface 2A. Tape, CD and MD
, Etc., or articles such as books and files.

Each of the movable shelves A and B is operated by rotating an operation handle 8 provided in a middle stage of a front panel 7 arranged on the front surface.
The rotational force is transmitted to the driving wheels 4 while being amplified through the deceleration interlocking mechanism, and is moved along the rails 3,.

More specifically, the small-width moving shelf A has a depth in the moving direction set to a width suitable for storing small-depth-width articles such as CDs and MDs. The depth width in the direction is set to a standard width of a double-sided type that allows articles such as books and files to be taken in and out from the front and rear surfaces. In the illustrated example, the depth width of the small-width movable shelf A is set to about half the depth width of the standard-width movable shelf B.

The small-width movable shelf A is provided with a double-sided storage section 2 at the upper part of the carriage 1 for allowing articles of small depth, such as CDs and MDs, to be taken in and out from the front and rear surfaces.
Are composed of a plurality of columns 9 standing on the carriage 1, a top plate 10 and a plurality of shelves 11 provided between the columns 9, 9 in multiple stages.

The carriage 1 has the rails 3,
The driving wheel 4 and a pair of driven wheels 5, 5 before and after the driving wheel 4 are provided along the moving direction at a position corresponding to... The rotating shaft 12 of the driving wheel 4 is connected to an operating handle 8 via a gear transmission mechanism 13.
In conjunction with the power shaft 14 rotating with the
The rotating shafts 12 are connected to each other by an appropriate connecting shaft 15 so that they all rotate in conjunction with each other. In the present embodiment, the diameter of the drive wheel 4 is smaller than the small-width movable shelf A.
And the diameter of the driven wheel 5 is set to be approximately half the diameter of the drive wheel 4.

As shown in FIGS. 5 and 7, the rail 3 is a flange rail, and has a square pillar shape in which the driving wheel 4 and the driven wheels 5, 5 roll along the center of the upper surface of the bottom plate 16. A rail portion 17 is provided, and both side edges of the bottom plate 16 are raised to form a side plate 18A, and an upper edge of the side plate 18A is bent inward to form a top plate 18B. A groove is formed on both sides of the rail portion 17 with a predetermined interval provided between the rail portion 17 and the rail portion 17. Although not shown, a fixed plate wider than the bottom plate 16 is fixed to the back surface of the bottom plate 16 so as to be embedded in the floor F.

The carriage 1 is provided at a plurality of positions between the base rods 20 arranged in the front and rear directions of movement and at both ends and intermediate portions.
A plurality of pairs of connecting members 21 and 21 are fixed in a direction along the moving direction with an interval therebetween, and a plurality of pairs of connecting members 21 and 21 are positioned and set directly above the rails 3. , 21 between the driving wheel 4 and the driven wheel 5,
5 is provided rotatably. In the present embodiment, two driven wheels 5 and 5 are provided. However, the driven wheel 4 may be provided at a position closer to one side in the front-rear direction, and one driven wheel 5 may be provided on the opposite side.

Next, the deceleration interlocking mechanism will be described in more detail with reference to FIGS. First, the gear transmission mechanism 13 which is a feature of the present invention will be described. The gear transmission mechanism 13 is configured to rotate the rotation shaft 12 of the drive wheel 4 located closest to the front panel 7.
The holding part 23 fixes the cylindrical gear holder 22 to the front end of the power shaft 14, while the ring-shaped internal gear 24 is attached to the holding part 23 of the gear holder 22, while the power shaft 14 is manually rotated. An external gear 25 meshing with the internal gear 24 is formed at the end, and the movable shelf A can be moved by driving the power shaft 14 to rotate. Since the internal gear 24 and the external gear 25 are meshed with each other, the two gears 24 and 25 have the same rotation direction, and the number of teeth of the internal gear 24 is smaller than the number of teeth of the internal gear 24. Therefore, the rotation of the power shaft 14 is reduced, that is, the torque is amplified and transmitted to the rotary shaft 12. Although the internal gear 24 is attached to the gear holder 22, the internal gear may be formed directly on the inner surface of the cylindrical portion of the gear holder 22. Although formed at the rear end, it is obvious that a spur gear may be attached to the power shaft 14.

By adopting such a gear transmission mechanism 13, the distance between the power shaft 14 and the rotating shaft 12 can be minimized, so that the power shaft 14 and the rotating shaft 12 can be arranged on the same horizontal plane. The space in the moving direction is small, and the space in the vertical direction is also small.
Can be built in the truck 1 with a margin.

A large-diameter sprocket 26 is fixed to the front end of the power shaft 14, and a small-diameter sprocket 28 is fixed to a drive shaft 27 of an operation handle 8 provided at the middle stage of the front panel 7 of the moving shelf A. , The two sprockets 2
A chain 29 is wound around 6,28. The chain 2 is located at an intermediate position between the two sprockets 26 and 28.
9 is provided with a tensioner 30 for adjusting the tension. Here, the drive shaft 27 and the tensioner 30 of the operation handle 8 are mounted on a mounting plate 31 provided inside the front panel 7 and provided between the columns 9.

Accordingly, when the operation handle 8 is rotated, the drive shaft 14 is rotated by the two sprockets 26 and 28 and the chain 29 in the same rotation direction as the rotation direction of the operation handle 8. , The rotating shaft 12 and the driving wheel 4 rotate in the same rotation direction, and thus the moving shelf A moves in the same direction. That is, when the operation handle 8 is rotated clockwise, the movable shelf A moves rightward, and when the operation handle 8 is rotated counterclockwise, the movable shelf A moves leftward.

The standard width movable shelf B is exactly the same as the conventional structure and will be described briefly. The standard-width movable shelf B includes a plurality of pairs of wheels 33,
The wheel 33 is driven to rotate by the rotational force of the operation handle 8 by a reduction interlocking mechanism including the same gear transmission mechanism 13 as one of the wheels 33 as a driving wheel.
The two wheels 33 have the same diameter, and the driving wheels 4 have the same diameter. The other configuration is the same as the configuration of the small width storage shelf A, and the description thereof is omitted.

As described above, the small-width storage shelf A can be self-supported by the driving wheel 4 and the driven wheels 5 and 5 provided within its depth, and is relatively stable in a normal moving operation. The following structure is added for further stabilization. As shown in FIGS. 1 to 3, 8 and 9, a guide rail 34 parallel to the rail 3 is fixedly provided on the ceiling S above the narrow storage shelf A, and the upper end of the narrow storage shelf A is provided. A moving body 35 that moves along the guide rail 34 is provided to provide a fall prevention means.

The guide rail 34 has a pair of channel members 36, 36 each having a substantially U-shaped cross section formed by a pair of concave grooves 37, 3.
7 are fixed to the outside with a connecting member 38 having a substantially C-shaped cross section at an interval, and fixed to the ceiling S by a fixing member 39 having a substantially L-shaped cross section attached to the side surface of the connecting member 28. . The connecting member 38 also serves as a member for connecting the channel member 36 in the longitudinal direction. The moving body 35 has rolling wheels 4 at least at four corners on both side surfaces of a block body 40 large enough to be accommodated in the guide rail 34.
Are protruded, and the rolling wheels 31,.
The upper and lower surfaces in the groove 37 of the sixth roller are rolled. Then, a connecting rod 42 hanging downward from the lower end of the block body 40 is fixed between the two channel members 36, 36 at a proper position on the upper end of the small width storage shelf A. In order to prevent the movable body 35 from swaying, the block 4
As shown in FIG. 3, it is more preferable to provide a regulating wheel 43 having a vertical center of rotation so as to roll the side surfaces of the two channel members 36, 36, as shown in FIG. 3.

The moving body 35 may or may not be provided on the standard width moving shelf B. However, in order to improve the earthquake resistance, the standard width moving shelf B also has a small width storing shelf. It is desirable to provide the moving body 25 as in A.

Finally, although not shown, a rack is provided along the rail portion 17 of the rail 3, and a pinion that meshes with the rack is integrally formed on one side surface of the drive wheel 4 to drive the vehicle. The idle rotation of the wheel 4 can be completely restricted, and its rotational force can be reliably transmitted to the rail portion 17.

The deceleration transmission mechanism 13 according to the present invention is not limited to a manual moving shelf device, but can also be adopted as a deceleration transmission mechanism for a power shaft of a driving motor and a rotating shaft of driving wheels in an electric moving shelf device. It is. Thereby, the drive motor can be completely stored in the carriage 1.

[0028]

As described above, the manual moving shelf apparatus according to the present invention has the following effects by adopting the above-described configuration.

According to the manual moving shelf device of the present invention, a driving wheel and one or more driven wheels are provided at a position corresponding to each rail at a lower end of the moving shelf, and a front end of a rotating shaft of the driving wheel is provided. The holding portion fixes the cylindrical gear holder to the portion, and the ring-shaped internal gear is attached to the holding portion of the gear holder, and the internal gear meshes with the rear end of the power shaft that is manually rotated. As the external gear is formed, and the power shaft is driven to rotate and the movable shelf can be moved, a power reduction gear mechanism that transmits the torque of the power shaft to be manually rotated to the rotation shaft of the drive wheel is used. The distance between the shaft and the rotating shaft can be minimized, that is, the deceleration interlocking mechanism can be configured in the minimum space, and both shafts can be rotated in the same rotation direction, so the operability is the same as the conventional one become. Further, as compared with the conventional interlocking mechanism between the sprocket and the chain, there is an advantage that adjustment is less and no consideration is required for elongation of the chain.

According to the second aspect, when the operation handle provided in the middle portion of the front panel is rotated, its rotational force can be amplified and transmitted to the power shaft, and the rotation direction is the same as the rotation direction of the operation handle. Therefore, the drive shaft can be rotated, and the drive wheels can be rotated in the same rotation direction as the rotation direction of the operation handle.

According to the third aspect of the present invention, two spaces are provided at the front and rear.
Since the center distance between the driven wheels can be set to the maximum, the standing posture of the small-width movable shelf can be maintained relatively stably, and small-width articles such as video tapes, CDs, and MDs can be used. Even if the same drive wheels as those provided in the conventional standard-width movable shelf are used as they are as the drive wheels provided on the small-width movable shelf having a small depth suitable for storage, the posture can be relatively stably maintained. it can.

According to the fourth aspect, the depth of the storage section of the movable shelf is set to a small width suitable for storing small-width articles such as video tapes, CDs, and MDs. The space for installing the moving shelves can be reduced while maintaining the number of sheets, or more moving shelves can be installed in the same installation space, so that the space utilization efficiency can be improved.

[Brief description of the drawings]

FIG. 1 is an overall perspective view showing only a small-width moving shelf in a manual moving shelf device of the present invention.

FIG. 2 is an overall simplified front view of a manual movable shelf device according to the present invention.

FIG. 3 is a longitudinal sectional view which is also omitted.

FIG. 4 is an abbreviated transverse sectional view.

FIG. 5 is an omitted perspective view showing a main part of the present invention.

FIG. 6 is an enlarged cross-sectional view of a main part of the same.

FIG. 7 is an enlarged longitudinal sectional view of a main part of the same.

FIG. 8 is a perspective view of a guide rail constituting a fall prevention means.

FIG. 9 is an enlarged vertical sectional view of a main part for describing a fall prevention means.

[Explanation of symbols]

 Reference Signs List A Small-width movable shelf B Standard-width movable shelf C Fixed shelf F Floor surface S Ceiling 1 Cart 2 Storage section 3 Rail 4 Drive wheel 5 Follower wheel 6 Passage 7 Front panel 8 Operation handle 9 Support 10 Top plate 11 Shelf plate 12 Rotating shaft 13 Gear transmission mechanism 14 Power shaft 15 Connection shaft 16 Bottom plate 17 Rail portion 18A Side plate 18B Top plate 19 Concave groove 20 Base rod 21 Connection member 22 Gear holder 23 Holder 24 Internal gear 25 External gear 26 Sprocket 27 Drive shaft 28 Sprocket 29 chain 30 tensioner 31 mounting plate 32 trolley 33 wheel 34 guide rail 35 moving body 36 channel member 37 concave groove 38 connecting member 39 fixing member 40 block body 41 rolling wheel 42 connecting rod 43 regulating wheel

Claims (4)

[Claims] 1. A manual type in which a plurality of movable shelves are arranged along a plurality of rails so as to be movable with respect to each other, and a passage having a predetermined width is formed between adjacent movable shelves by relatively moving. A moving rack device, wherein a driving wheel and one or more driven wheels are provided at a position corresponding to each rail at a lower end of the moving shelf, and a cylindrical gear holder having a holding portion at a front end of a rotating shaft of the driving wheel. And a ring-shaped internal gear is attached to the holding portion of the gear holder, and an external gear that meshes with the internal gear is formed at the rear end of the power shaft that is manually rotated. The movable shelf is movable by driving the movable shelf. 2. A large-diameter sprocket is fixed to a front end of the power shaft, a small-diameter sprocket is fixed to a drive shaft of an operation handle provided in a middle stage of a front panel of a movable shelf, and a chain is attached to the two sprockets. The manual moving shelf device according to claim 1, which is wound. 3. A driving wheel is provided at a position corresponding to each rail at a lower end of the moving shelf at a central portion in a moving direction, and has a smaller diameter before and after the driving wheel. 3. The manual moving shelf device according to claim 1, further comprising a plurality of driven wheels. 4. A depth width of the storage unit of the movable shelf,
The manual moving shelf device according to any one of claims 1 to 3, which has a small width suitable for storing small-depth-width articles such as video tapes, CDs, and MDs.