JP3498497B2 - Fluid shelf load braking device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a load shelving device for a flow shelf, wherein a load is slidably supported downward by a wheel rail. 2. Description of the Related Art In a fluidized shelf, a load replenished at an upper end of a wheel rail is slid downward on the wheel rail by gravity, and a stopper is provided near the lower end of the wheel rail. The load supplied on a wheel rail on which no load is supported is slid over the entire length of the wheel rail. The impact when received by the stopper also increases. The impact at this time becomes larger as the overall length of the wheel rail is longer and as the inclination angle is larger. [0003] Therefore, in a fluidized shelf in which the total length of the wheel rail is long or the inclination angle is set to a large value, depending on the load to be handled, the load easily collapses or falls due to an impact when received by the stopper. Therefore, it is necessary to automatically apply braking at the lower end of the slope to smoothly stop the load sliding down the slope while giving the wheel rail the required length and the required angle of inclination. As described in Japanese Utility Model Publication No. 22485/1993, this type of load shelving device for a fluidized shelf has an inclined brake plate on which a sliding load rides on the inclined lower end of a wheel rail. Brake plate type, real fair 2
As described in JP-A-6001, a braking belt system in which an endless braking belt is stretched over a plurality of wheels constituting a wheel rail,
As described in JP-A-6-10828, there is known a friction plate system in which a friction plate is arranged beside a wheel rail. However, it is practically impossible to adjust the braking force according to the weight of the load to be handled by a conventional load braking device of the inclined braking plate type or the friction plate type. Although it is theoretically possible to adjust the braking force on the load by changing the initial load applied to the brake belt in the load belt braking device of the brake belt type, the adjustment method is not practical, and The structure is complicated and leads to significant cost increase. SUMMARY OF THE INVENTION An object of the present invention is to provide a load shelving device for a fluidized shelf which can solve the above-mentioned conventional problems. In the preferred embodiment, wheel rails 1 supporting wheels 5 are disposed at an appropriate interval on a frame 4 at an appropriate interval, and the load W is slid downward by the wheel rails 1. capable a load brake device of the flow shelf which is adapted to support, provided with a wheel cover 10, the wheel
Cover 10 is obtained by bending a strip-shaped plate body with elastic shaped substantially C, and against the elastic for a single wheel 5
It is detachably fitted and has both ends 11a, 11b.
Means that the wheel cover 10 rotates integrally with the wheel 5.
To abut against the bottom plate 4a of the frame 4
And it has a configuration that is in the location. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of the present invention will be described below with reference to the accompanying drawings. In FIG. 1, reference numeral 1 denotes a wheel rail used in a fluidized shelf, and 2 denotes a wheel rail. A shelf frame 3 that supports the inclined lower end portion 1 is a picking work apron (work table) that is attached as needed. As is well known in the art, the wheel rails 1 are generally arranged in a plurality of units in a horizontal direction with a pair of left and right units so that one load W is supported by the two right and left wheel rails 1. In addition, it is generally arranged in a plurality of upper and lower stages. As shown in FIG. 2, the wheel rails 1 are provided with wheels 5 at equal intervals in the longitudinal direction of the frame 4 in a groove 4 having a vertical cross section. It is supported by a horizontal support shaft 6 so as to protrude upward. Reference numeral 10 denotes a wheel cover which constitutes a load braking device. The wheel cover 10 is made of an elastic material such as stainless steel and has a width substantially equal to the width of the wheel 5.
One wheel 5 is bent into a substantially C-shape so that it can be sandwiched by elasticity.
Bends 12a and 12b are formed inside 1b to make the interval narrower than the diameter of the wheel 5. The wheel cover 10 has two bent portions 12.
By strongly pressing down the a and 12b on the wheel 5, the bent portions 12a and 12b once spread against the elasticity, and return elastically after passing below the axial level of the wheel 5, As shown by the solid line in FIG.
Can be fitted. At this time, both ends 11 a and 11 b of the wheel cover 10 are connected to the bottom plate 4 of the frame 4.
a, and the wheel cover 10 is close to the wheel 5
To prevent the unit from rotating together. Further, an appropriate tool (for example, the tip of a flathead screwdriver) is inserted between one of both end portions 11a and 11b of the wheel cover 10 and the frame bottom plate 4a, and the wheel cover 10 is operated to push up one end thereof. 5, the wheel cover 10 can be removed. As described above, the wheel cover 10 which can be detachably fitted to the wheel 5 has a structure shown in FIG.
As shown in the figure, the wheel rail 1 is fitted to one or a plurality of selected wheels 5 within an appropriate length area of the inclined lower end. As a result, the wheel 5 to which the wheel cover 10 is fitted does not function as a wheel, and the load W sliding on the wheel 5 passes through the wheel cover 10 in a fixed state in sliding contact with the friction against the friction. The frictional force between the wheel cover 10 and the load W at this time acts as a braking force, and the sliding speed of the load W is reduced. Therefore, by taking into account the number and arrangement pattern of the wheel covers 10 used for one wheel rail 1, the load W sliding on the wheel rail 1 in an inclined downward direction is smoothly decelerated, and The rail 1 can be stopped smoothly just before colliding with the stopper 13 provided near the lower end of the rail 1. Although the stopper 13 is illustrated as being integrally connected to the shelf frame 2, the stopper 13 may be detachable from the shelf frame 2, or in particular, the picking work apron 3 may be attached thereto. If there is, load W in front of this apron 3
It is also possible to dispose the wheel cover 10 and stop the stopper 13 so as to stop smoothly. FIG. 4 shows a reference example. This
As shown in FIG. 4, a wheel cover 14 having a length capable of simultaneously covering a plurality of wheels 5 (two in the illustrated example, but the number is not limited) may be used. In this case, the wheel cover 14 is attached by elastically pressing the bent portions 15a and 15b at both ends of the wheel cover 14 below the wheel axis level with the wheels 5 at both ends of the area covered by the wheel cover 14. . One or more wheel covers 14 may be used to form a braking device.
And the wheel cover 10 shown in the above embodiment can be combined to form a braking device. As described above, the load braking device of the present invention is obtained by simply bending an elastic band-shaped plate into a substantially C shape.
One wheel cover that is extremely simple and can be constructed at low cost
One or more wheels, depending on the overall length of the wheel rail, the angle of inclination, the weight of the load to be handled, etc., or one or more selected wheels on the wheel rail. By simply fitting against the elasticity, it is possible to apply the necessary braking force to the load sliding on the wheel rail inclining downward and decelerate it. Therefore, the load can be smoothly stopped at the lower end of the wheel rail without impact,
There is no need to cause inconveniences such as collapse of the cargo or falling of the cargo. Furthermore, compared with the case where a friction plate instead of a wheel cover is mounted on the wheel rail frame or the side of the wheel rail, the mounting means is not required, and the mounting and dismounting work can be performed very easily and inexpensively. be able to. Of course, it is very easy and easy to change the number and arrangement pattern of the wheel covers to be used, so if the load to be handled changes, the number and arrangement pattern of the wheel covers to be used according to the weight of the load, etc. By changing the braking force, the braking force can be adjusted and the intended purpose can always be reliably achieved. According further to the configuration of the present invention, it is possible to fit the one wheel cover one wheel, Ru der can be adjusted fine braking force.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic side view showing a main part of a fluidized shelf. FIG. 2A is a longitudinal sectional front view showing a state in which a wheel cover is fitted to the wheel, and FIG. B is a longitudinal sectional side view in the same state. FIG. 3 is a longitudinal sectional side view showing a main part of a fluidized shelf with a wheel cover attached. FIG. 4 is a longitudinal sectional side view showing a state in which a wheel cover according to another embodiment is mounted on a wheel. DESCRIPTION OF THE SYMBOLS 1 Wheel rail 4 Wheel rail frame 5 Wheel 6 Horizontal support shaft 10 Wheel cover 11a Wheel cover end 11b Wheel cover end 12a Wheel cover bent portion 12b Wheel cover bent portion 14 Wheel cover 15a Wheel cover 15b of the wheel cover

Claims (1)

(57) [Claims 1] A wheel rail which supports a wheel at an appropriate interval is disposed on a frame in an inclined manner, and a load is slidably supported downward by the wheel rail. a load brake device of the flow shelf which is adapted, provided with a wheel cover, the wheel cover is substantially C a strip-shaped plate body with a resilient
Which was bent into a shape, bullets for one wheel
In addition to being fitted detachably against the property, both ends are
Check that the wheel cover rotates integrally with the wheel.
A load shelving device for a fluidized shelf at a position where it abuts and prevents the bottom plate of the frame .