JPH1132858A - Propped storage rack - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a storage rack propped between the ceiling and the floor for preventing a screw axis of a strutting mechanism from obstructing the way to contain into an uppermost stage of the shelves, and for easily and normally conducting a tightening or loosing operation of the screw axis. SOLUTION: A body for pushing 27 mounted upward from a top board 3 is operated up and down by a screw axis 28 provided between the top board 3 and the body for pushing 27. A lower edge of the screw axis 28 is supported freely to rotate and unable to relatively move up and down, of which an operation section 31 is normally positioned on a lower surface section of the to board 3. On an interior surface of the body for pushing 27, a receiving frame 29 for receiving the body for pushing 27 is provided, and a female screw body 30 for engaging the screw axis 29 is fixed to a bottom wall of the receiving frame 29.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stretch-fixed storage shelf which is arranged along a wall surface and is installed and fixed in a stretched state between a ceiling and a floor. In this storage shelf, the height of the shelf can be changed according to the difference in ceiling height.

[0002]

2. Description of the Related Art This type of storage shelf is disclosed in Japanese Utility Model Laid-Open No. 7-30763.
It is known in the publication. The storage shelf includes an upper frame and a lower frame each having a U-shaped cross section, a tension mechanism disposed at an upper end of the upper frame, a shelf board hooked in both frames, and the like. The lower part of the upper frame and the upper part of the lower frame are nested and connected so that the overall height can be changed and adjusted within a certain range. On the left and right side walls of each frame, hook holes for fitting and receiving shelf supports are provided at regular intervals in two front and rear rows.

As shown in FIG. 8, the above-mentioned tension mechanism comprises a square box-shaped guide frame 43 formed by an upper wall 41 of an upper frame 40 and a top plate 42, and a corner supported slidably up and down by the guide frame 43. It is composed of a box-shaped pressing body 44, a bolt 45 for vertically moving the pressing body 44 up and down, a nut 47 fixed to the guide frame 43 via a bracket 46, and the like.
When the bolt 45 is rotated, the pressing body 44 can be advanced (or retracted) by the amount of screwing. Bolt 45
The upper end of is rotatably pivoted by a dish-shaped body 48 fixed to the inner surface of the pressing body 44, and in many cases, an operation section 49 at the lower end of the bolt is provided through a hole 50 provided through the top plate 42, It protrudes from the lower surface of the top plate.

[0004]

In the above-described tension mechanism, when the pressing body 44 moves up and down, the bolt 45 moves together. Therefore, in a state where the pressing body 45 is pressed against the ceiling and the entire shelf is stretched and fixed, the bolt 45 is fixed.
May project from the lower surface of the top plate 42. The bolts 45 protruding from the lower surface of the top plate obstruct storage in the uppermost shelf, and a part of clothes is caught when putting in / out the stored items, thereby balancing the body of the user on the step platform. There are also safety issues, such as breaking down.

[0005] The operating portion 49 of the bolt 45 can always be positioned above the top plate 42, but then, while visually recognizing the operating portion 49 from the hole 50 provided in the top plate 42,
Alternatively, it is necessary to rotate the operation unit 49 with a driver or the like while groping, and in any case, it is difficult to perform the bolt operation. The disadvantage that the adjustment stroke by the bolt 45 is reduced is inevitable.

SUMMARY OF THE INVENTION It is an object of the present invention to prevent the screw shaft from protruding greatly from the lower surface of the top plate, so that the screw shaft can be stored on the uppermost shelf and the stored items can be taken out without any trouble. An object of the present invention is to provide a tension-fixed type storage shelf in which an operation unit is always exposed to a lower surface of a top plate to easily perform a screw shaft tightening / releasing operation.

[0007]

SUMMARY OF THE INVENTION A storage shelf according to the present invention comprises a pair of left and right side frames 1.1, a plurality of shelves 2 hooked and fixed to both side frames 1.1, and two side frames 1.1. And a tension mechanism T provided between the upper ends. The tensioning mechanism T is provided between the pressing body 27 and the top plate 3 and is disposed above the top plate 3 fixed between the upper ends of the both side frames 1. And an operating screw mechanism. The screw mechanism includes a screw shaft 28 rotatably supported by the top plate 3 but not relatively movable in the axial direction, and a passive frame 29 abutting on the inner surface of the pressing body 27 and vertically operated by the screw shaft 28. And Thus, the operation unit 31 provided at the lower end of the screw shaft 28
Regardless of the vertical position of the pressing body 27, it is exposed on the lower surface of the top plate 3.

Specifically, each of the two side frames 1
The upper frame 5 and the lower frame 6 that are overlapped and connected in the middle part in the vertical direction are configured to be adjustable in height. At the lower end of the screw shaft 28, an operation unit 31 having a larger diameter than the screw shaft 28a is provided.
Is provided on the upper surface of the screw shaft 28a to prevent the screw shaft 28 from slipping off. The top plate 3 is formed in a square box shape, and a guide opening 16 is provided on an upper surface thereof. A rectangular box-shaped pressing body 27 opening downward is guided and supported by the guide opening 16 so as to be able to move up and down. The washer 33 is arranged between the stopper 34 and the top plate 3. A female screw body 30 meshing with the screw shaft 28 is fixed to the passive frame 29. A concave portion 36 for accommodating the operating portion 31 of the screw shaft 28 is provided in an upper concave shape on the face wall of the top plate 3.

[0009]

The pressing body 27 is vertically moved by a screw shaft 28 provided on the top plate 3 via a passive frame 29.
, But the rotation is free, but the relative movement in the axial direction is supported so that the operation part 31 of the screw shaft 28 is always attached to the lower surface of the top plate 3 irrespective of the change of the vertical position of the pressing body 27. Can be exposed. Therefore, not only can the tightening and loosening operation of the screw shaft 28 be easily performed, but also the top plate 3 of the pressing body 27 can be easily adjusted.
When the amount of protrusion from the screw shaft 28 is small,
1 can be prevented from greatly protruding below the top plate 3.

[0010]

1 to 6 show an embodiment of a storage shelf according to the present invention. In FIG. 2, the storage shelf is a pair of left and right side frames 1.
1, a number of shelves 2 which are hooked and fixed between both side frames 1.1, a top plate 3 and a bottom plate 4 provided at upper and lower ends of both side frames 1.1, and an upper portion of the top plate 3. It is composed of the provided tension mechanism T and the like.

The side frame 1 comprises an upper frame 5 and a lower frame 6 which are nested and connected in the upper half in the vertical direction.
The height of the entire shelf can be changed and adjusted by changing the amount of overlap between the side frames 5 and 6. The lower frame 6 is formed by connecting two equal-length frames 7 and 7, and furthermore, the upper frame 5 is formed in order to make the package at the time of shipment smaller and more compact.
Is set to the same length as the frame 7.

As shown in FIG. 3, the upper frame 5 has a pair of left and right frame side walls 5a, a frame front wall 5b connecting front portions of both side walls 5a, and a frame connecting rear portions of both side walls 5a. The rear wall 5c is formed of a hollow-frame-shaped steel sheet molded product formed by bending a series of portions. The frame rear wall 5c is formed by bending and joining rear walls that are continuous with the left and right frame side walls 5a, and the bent joint serves to enhance the frame strength. The upper and lower ends of the upper frame 5 are folded back to the inner surface of the frame in order to prevent accidental injury during assembly or the like (see FIG. 3A).

The front and rear surfaces of the pair of frame side walls 5a are arranged in front and behind.
Grooves 9 each having a U-shaped cross section are formed to face each other in an indented shape.
These four grooves 9 increase the section modulus of the upper frame 5,
Helps to increase its structural strength. In the groove bottom wall of each groove 9, hook holes 10 for hooking and mounting the shelf holders 15 are provided at regular intervals. The retaining hole 10 is formed in the shape of a rectangular groove that is long in the vertical direction.

As described above, the lower frame 6 includes a pair of upper and lower frames 7. Like the upper frame 5, each frame 7 is formed as a hollow frame having a similar cross section having a pair of frame side walls 7a, a front wall 7b, and a rear wall 7c. The width is set to be slightly smaller than the width of the inner frame before and after and the width of the inner frame left and right so that the upper frame 5 can be inserted into and removed from the space inside the frame of the upper frame 5. The frame rear wall 7c of the frame 7 is bent and joined in the same manner as the upper frame 5. However, the front-rear pitch of the groove 11 is matched with the front-rear pitch of the groove 9 of the upper frame body. It is installed at the same pitch as. Therefore, in a state where the frame body 7 is connected to the upper frame body 5 by superimposition, the shelf receiver 15 can be hooked into the hook holes 10 and 12 of the overlapped portion without any trouble.
As shown in FIG. 2, the upper and lower frame members 7 are not separated from each other by connecting the fittings 13 to the inner surfaces of the joints and then screwing bolts from one outer surface of the respective frame members 7 into the fittings 13. To be integrated. The connection fitting 13 is also formed with holes having the same shape as the above-described hook holes 12 at the same pitch.

In order to improve the strength of the frame when the storage shelves are assembled, the upper ends of the left and right side frames 1 are connected by a top plate 3 and the lower ends thereof are connected by a bottom plate 4. The top plate 3 is formed of a press-formed product in the shape of a square box that opens upward, and the upper edges of the front, rear, left and right peripheral side walls are each bent inward and then turned inward, and are defined by the peripheral side walls as shown in FIG. A guide opening 16 slightly smaller than the square to be formed is opened on the upper surface. As shown in FIG. 2, the top plate 3 is integrated with the left and right side frames 1 and 1 by screwing bolts from outside the side surface of the side frame 1 to the front and rear of the left and right side walls.

The bottom plate 4 is formed of a rectangular box-shaped press-formed product having the same width as the top plate 3 and opening downward, and the bottom frame 4 is connected to the side frame 1 with bolts screwed from the outside of the side surface of the side frame 1 like the top plate 3. Integrate. A plastic end cap 17 is fitted around the lower ends of the left and right side frames 1 adjacent to the bottom plate 4.

The shelf 2 is made of a thin rectangular box-shaped steel plate panel that opens downward, and a fall prevention wall 18 stands up at the rear edge thereof as shown in FIG. The mounting wall 19 is folded inward continuously from the lower ends of the left and right side walls of the shelf plate 2,
An engagement groove 20 that is engaged and supported by the shelf receiver 15 is provided at a location.

In FIG. 5, the shelf holder 15 is provided with
0, 12 and the engaging groove 20 of the shelf 2
The press-formed product is formed by integrally bending the claw portion 23 to be fitted into the right angle to be orthogonal. The leg piece 22 has a hook hole 10.
A groove 24 is provided which engages the lower peripheral wall of the twelve. The triangular receiving wall 25 continuous with the leg piece 22 abuts on one of the front and rear walls of the opening of the groove 9/11 in a state where the leg piece 22 is hung in the locking holes 10/12, and the shelf receiving member 25 Maintain 15 standing postures. In addition to supporting the shelf board 2, the shelf holder 15 is hooked in a hook hole 12 on the lower frame 6 side located at the overlapping connection portion of the upper frame 5 and the lower frame 6, and the upper frame 5 is lowered. It is also used as a fixing bracket for receiving and supporting it immovably.

In FIG. 1, the tension mechanism T comprises a rectangular box-shaped pressing body 27 which opens downward, and a screw mechanism which operates the pressing body 27 up and down. The four circumferential side walls of the pressing body 27 are folded inward and reinforced with double walls, and the entire top plate 3
It is housed in the inside and is guided by its guide opening 16 so as to be able to move out and back. The screw mechanism includes a screw shaft 28 rotatably supported by the top plate 3 and relatively immovable in the axial direction.
A passive frame 29 having a hat-shaped cross section provided on the inner surface of the
9 comprises a female screw body 30 welded to two places on the left and right of the upper surface of the bottom wall. Note that the passive frame and the pressing body 27 are merely in contact with each other, and the pressing body 27 can be freely separated from the passive frame 29.

The screw shaft 28 has, at the lower end of the screw shaft portion 28a, an operation portion 31 having a diameter larger than that of the shaft portion. To enable the screw shaft 28 to be operated on the lower surface of the top plate 3 irrespective of the change in the vertical position of the pressing body 27, as shown in FIG.
Support with. After the screw shaft portion 28a is inserted from below into the screw holes 32 provided at two places on the left and right of the top plate 3, a washer 33 having a larger diameter than the screw hole 32 is fitted to the screw shaft portion 28a.
Further, a stopper 34 is attached near the lower end of the screw shaft 28a. As the stopper 34, pins or screws penetrating the screw shaft portion 28a, or an E-shaped or C-shaped shaft retaining ring can be applied. In this embodiment, a tool is used as shown in FIG. A dart-shaped pin that can be inserted and withdrawn without a stop is used as the stopper 34 to prevent the screw shaft 28 from dropping off.

The passive frame 29 is formed so as to be slightly smaller than the right and left width of the pressing body 27, and is formed so that its bottom wall is located near the lower surface opening of the pressing body 27. This provides sufficient vertical clearance between the passive frame 29 and the upper wall of the pressing body 27 to allow the screw shaft 28 to enter, and the pressing body 27 retreats into the top plate 3 as shown in FIG. Even in the state, the screw shaft 28
This is for avoiding interference with the pressing body 27 and for operating the pressing body 27 with the screw shaft 28 until most of the pressing body 27 projects from the guide opening 16. That is, the operation stroke of the pressing body 27 by the screw shaft 28 is increased.

Next, the procedure for assembling the storage shelves will be described. First, the left and right lower frames 6.6 are assembled by connecting the frames 7, and the bottom plate 4 is fastened between the lower ends thereof. Similarly, the top plate 3 is fastened between the upper ends of the pair of upper frames 5, and the screw shaft 28 and the pressing body 27 are assembled inside. Specifically, two screw shafts 28 are inserted into the top plate 3 from the lower surface side, and a washer 33 and a stopper 34 are assembled to the screw shaft 28. Further, the screw shaft 28 is screwed into the female screw body 30 to integrate the passive frame 29 with the top plate 3. At this time, the screw shaft 28 is screwed into the female screw body 30, and the pressing body 27 is retracted into the top plate 3 as shown in FIG. Finally, the pressing body 27 is fitted into the top plate 3 and supported by the passive frame 29.

The upper frame 5 is inserted into the upper portion of the lower frame 6 so as to be fitted externally and temporarily assembled, and the length from the lower end of the lower frame 6 to the upper end of the pressing body 27 is slightly smaller than the height of the ceiling. Then, the shelf holder 15 is hooked into the hook hole 12. As a result, the upper frame 5 cannot move below the position defined by the shelf receiver 15, and the lower end thereof is received by the shelf receiver 15. The side frame 1 in this state stands up and follows the wall as shown in FIG. 4 to perform positioning in the front-back and left-right directions. After this, the screw shaft 28
Is operated to advance the pressing body 27 above the top plate 3, and the upper surface thereof is pressed against the ceiling to stretch and fix the entire shelf frame. Finally, the shelf holder 15 and the shelf board 2 are hung between the side frames 1.1 to complete the storage shelf. If necessary, the fall prevention bar 35 is hooked and mounted between the side frames 1.1. The pressing body 27
As shown in FIG. 4, the shelf frame can be stretched and fixed by pressing against a step wall near the ceiling.

As described above, when the storage shelf is installed, the screw shaft 28 has only the operation part 31 exposed on the lower surface of the top plate 3, and the pressing body 27 projects from the top plate 3. Even if the amount changes, the state of the operation unit 31 does not change. Therefore, the screw shaft 28 can be prevented from obstructing the loading and unloading of the items stored in the uppermost shelf, and the tightening and loosening operation of the screw shaft 28 can always be easily performed via the operation unit 31.

In the installation example shown in FIG.
The storage capacity of the storage shelves is increased by disposing a set of storage shelves at predetermined intervals and passing the shelves 2 between the two shelves. In this case, since the shelf supports 15 can be hooked and mounted on the left and right side surfaces of each side frame 1, respectively, the adjacent shelf boards 2 can be arranged at the same height in a horizontal line, and of course, The height can be changed freely.

FIG. 7 shows another embodiment of the tension mechanism T. Here, a concave portion 36 having an upper concave shape is formed in the surface wall of the top plate 3 so that the operation portion 31 of the screw shaft 28 can be accommodated in the concave portion 36. Further, in this embodiment, the passive frame 29 is formed of a frame having a U-shaped cross section and a small vertical thickness, and the front and rear walls thereof are welded to the lower portions of the front and rear walls of the pressing body 27 so that the passive frame 29 is attached to the pressing body 27. And integrated. The passive frame 29 having a hat-shaped cross section in the previous embodiment can be similarly integrated by welding to the pressing body 27.

In addition to the above-described embodiment, only one screw mechanism or two or more screw mechanisms for the tension mechanism T can be provided according to the difference in the lateral width of the storage shelf. Internal thread 3
0 can be replaced with a screw hole formed in the passive frame 29. The lower frame 6 can be configured as a single member. In this case, the lengths of the upper frame 5 and the lower frame 6 are set to be substantially equal.

[0028]

According to the present invention, the lower portion of the screw shaft 28 for vertically operating the pressing body 27 is supported by the top plate 3 so as to be rotatable but not relatively movable in the axial direction. When the amount of advance from the top plate 3 is small, the screw shaft 28 is prevented from protruding to the lower surface side of the top plate 3, and conversely, even when the pressing body 27 protrudes greatly from the top plate 3, Operation unit 31
Can be held on the lower surface of the top plate 3. Therefore,
According to the storage shelf provided with the tensioning mechanism of the present invention, the screw shaft 28 is prevented from greatly protruding below the top plate 3 depending on the advanced state of the pressing body 27, and is stored on the uppermost shelf or stored. Can be taken out without any trouble, and the operation part 31 is always exposed to the lower surface of the top plate 3, so that the screw shaft 28 can be easily tightened and loosened, and the installation and relocation of the storage shelf is correspondingly performed. Can be reduced.

[Brief description of the drawings]

FIG. 1 is a sectional view taken along line AA in FIG.

FIG. 2 is a front view of a storage shelf.

FIG. 3 is a side view of the upper frame and a cross-sectional view taken along line BB.

FIG. 4 is a perspective view showing an example of installation of storage shelves.

FIG. 5 is a vertical sectional front view showing a support structure of the shelf board.

FIG. 6 is a longitudinal sectional side view of the tensioning mechanism in a state where the pressing body is retracted most into the top plate.

FIG. 7 is a longitudinal sectional side view showing another embodiment of the tension mechanism.

FIG. 8 is a longitudinal sectional side view showing a conventional tension mechanism.

[Description of sign]

 DESCRIPTION OF SYMBOLS 1 Side frame 2 Shelf board 3 Top plate 27 Pressing body 28 Screw shaft 29 Passive frame 30 Female screw body 31 Operation part T Stretching mechanism

Claims (6)

[Claims] 1. A pair of left and right side frames 1.1, and both side frames 1.1.
A plurality of shelves 2 which are hooked and fixed to each other, and a tension mechanism T provided between upper ends of both side frames 1.1. The tension mechanism T is fixed between upper ends of both side frames 1.1. It comprises a pressing body 27 disposed above the top plate 3, and a screw mechanism provided between the pressing body 27 and the top plate 3 to operate the pressing body 27 up and down. A screw shaft 28 rotatably supported but immovable relative to the axial direction, and a passive frame 29 abutting against the inner surface of the pressing body 27 and vertically moved by the screw shaft 28; A strut-fixed storage shelf, wherein an operation unit 31 provided at a lower end is exposed on the lower surface of the top plate 3 irrespective of the vertical position of the pressing body 27. 2. An upper frame 5 and a lower frame 6 in which both side frames 1 and 1 are overlapped and connected at an intermediate portion in the vertical direction,
2. The storage shelf according to claim 1, wherein the height is adjustable. An operating section 31 having a diameter larger than that of the screw shaft section 28a is provided at a lower end of the screw shaft 28, and is mounted on the screw shaft section 28a on the upper surface side of the top plate 3 to prevent the screw shaft 28 from falling off. 3. The storage shelf of a stretch-fixed type according to claim 1, further comprising a stopper 34 for preventing the stay. 4. A top plate 3 is formed in the shape of a rectangular box, and a guide opening 16 is provided on the upper surface thereof. 4. The storage shelf according to claim 1, wherein said storage shelf is freely guided and supported. 5. The tension fixing according to claim 3, wherein a washer is disposed between the stopper and the top plate, and a female screw body meshing with the screw shaft is fixed to the passive frame. Type storage shelf. 6. The operation unit 3 of the screw shaft 28 is provided on a surface wall of the top plate 3.
2. A concave portion for accommodating the first member is provided in an upper concave shape.
Or the storage shelf of 2 or 3 or 4 or 5 which is of a fixed tension type.