JP3693288B2 - Storage case - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a storage case having a drawer-type middle case.
[0002]
[Prior art]
A plastic storage case having a drawer-type middle case for storing clothing and daily necessities is known. This type of storage case accommodates a drawer-type middle case with an open top in a box-like or frame-like case body, and this middle case can be pulled out from the opening provided in the front of the case body. It was a common usage to be used by being stacked in a formula (for example, JP-A-10-113235, JP-A-9-103328, etc.).
[0003]
[Problems to be solved by the invention]
Since the above storage case is molded of plastic, it can be provided at a lower cost compared to a cut and assembled wood or steel, so that it was popular for storing in a closet or closet. By the way, in this case, it is desirable to seal the opening on the upper surface of the middle case when the middle case is housed in the case body, and this point should be taken into consideration especially when used in a closet or closet where dust is easily filled. Had to be done.
[0004]
Therefore, it is necessary to seal the opening on the upper surface by bringing the upper end of the middle case into contact with the top plate inside the case body. In this case, the middle case moves forward and backward with respect to the case body. There was a risk that slip would worsen due to being tightly fitted inside the case body. In order to prevent this, it is necessary to increase the dimensional accuracy. In this case, however, there has been a problem that the manufacturing cost of this kind of easy storage case formed of plastic is increased.
[0005]
[Means for Solving the Problems]
The present invention has been created in view of the above-described problems of the prior art, and an object thereof is to provide a storage case that achieves hermeticity without impairing slipping of the middle case with a simple configuration.
[0006]
That is, the storage case of the present invention is a storage case in which a drawer-type middle case with an upper surface opened is freely drawable from an opening provided in the front of the case body, so that the height of the middle case gradually decreases toward the front end. On the other hand, the height of the inside of the case body where the middle case moves forwards and backwards is set so as to gradually decrease toward the front end corresponding to the middle case, while the middle case is accommodated in the case body. The upper end of the case was set so that it touches the top plate inside the case body, and the wheels on which the middle case should be rotatively mounted were provided near the opening of the bottom plate inside the case body. It is characterized by.
[0007]
1 to 4 are diagrams schematically showing the operation of the present invention. In the figure, the middle case 5 is tapered so that the bottom plate 6 rises toward the front end so that the height gradually decreases from the rear end A1 toward the front end B1. On the other hand, the case body 1 is set to have a tapered shape in which the inner bottom plate 3 rises toward the front end corresponding to the middle case 5 so that the height gradually decreases from the rear end A2 toward the front end B2. (See FIG. 1). And both are set so that the upper end part of a middle case may contact the top plate 2 inside a case main body in the state in which the middle case 5 was accommodated in the case main body 1 (refer FIG. 4).
[0008]
In the above case, when the middle case 5 is pulled out, the front end, which is low in height, is located in a portion where the height inside the case body 2 is high. Is not sandwiched between the bottom plate 3 and the ceiling portion 2. That is, in this state, when the rear of the middle case 5 is heavy and tilted backward, the middle case and the case main body 2 are in contact with the wheel 4 portion, the upper corner of the rear end of the middle case, and the ceiling of the case main body. When the front of the middle case 5 is heavy and tilted forward, it is the lower corner of the rear end of the middle case and the Y portion of the bottom plate of the case body (see FIG. 3). Therefore, according to the present invention, only the front and rear two points of the middle case 5 are brought into contact with the case main body 2 to advance and retreat, and since one of these points rolls by the wheel, the operation of moving back and forth extremely smoothly can be obtained.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Next, specific embodiments of the present invention will be described with reference to the accompanying drawings. 3 to 8 are views showing an example in which the present invention is implemented in a storage case that can be stacked in a multistage manner, and here, it is assumed that the storage case is made of plastic. Reference numeral 10 in the figure denotes a case main body, which has a frame shape with the rear end closed and the center of the wall on both sides of the sheath having a rectangular cross section with the opening 13 at the front and the center of the bottom plate 11 being largely cut out ( (See FIG. 7 for notches on the wall surfaces on both sides, and FIG. 8 for notches on the bottom plate).
[0010]
In the figure, reference numeral 20 denotes an intermediate case which is accommodated in the case body 10 so as to be freely drawn out, and has a drawer shape in which only the upper surface is opened and the remaining five surfaces are closed. The middle case 20 is tapered so that the bottom plate 22 rises toward the front end so that the height gradually decreases from the rear end toward the front end. On the other hand, the case main body 1 is set so that the height gradually decreases from the rear end toward the front end when the inner bottom plate 3 is tapered toward the front end corresponding to the middle case 5. In this case, both are set so that the upper end 21 of the middle case contacts the top plate 22 inside the case body when the middle case 20 is accommodated in the case body 10.
[0011]
The above middle case 20 is pulled out by sliding and rolling with respect to the case body 10. FIG. 8 shows the details. In this embodiment, on both sides of the upper surface of the bottom plate 11 of the case body 10, a pair of rail-like raised portions 18, 18 on which the bottom plate 22 of the middle case 20 should slide is projected in the front-rear direction. A pair of wheels 16, 16 on which the bottom plate of the middle case should roll is provided on both sides of the bottom plate near the opening 13 of the case main body so as to be rotatable.
[0012]
In this embodiment, the wheel 16 is integrally formed of plastic with shafts 17 and 17 projecting from both ends. On the other hand, a wheel rotation space 14 in which the wheel 16 is rotatably accommodated is recessed in the bottom plate 11 of the case body 10, and a pair of groove portions 15, 15 provided at both ends of the wheel rotation space have a wheel shaft 17, By dropping 17, the wheel is provided on the bottom plate so as to be rotatable.
[0013]
【The invention's effect】
The present invention configured as described above has the following specific effects.
(1) Since the upper end of the middle case contacts the top plate inside the case body when the middle case is accommodated, the opening on the upper surface of the middle case is sealed, and the entry of dust and the like is prevented.
(2) Since the upper end of the middle case is separated from the top plate inside the case body when the middle case is pulled out, there is no possibility that the middle case will be tightly fitted to the inside of the case body and the slippage will not deteriorate.
{Circle around (3)} Only the two front and rear points of the middle case are pulled out in contact with the case body, and one of these points is rolled by a wheel, so that it can be pulled out very smoothly.
(4) Since the wheel is provided on the upper surface of the bottom plate of the case body, as in the embodiment, the shaft protruding from both ends of the wheel is provided in the groove portion provided at both ends of the wheel rotation space provided on the bottom plate inside the case body. When a configuration in which the wheel is provided to be rotatable by simply dropping it is adopted, the wheel can be adopted with an extremely simple structure, and the cost increase due to the adoption of the wheel can be avoided.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a storage case having a schematic structure for illustrating the operation of the present invention.
FIG. 2 is a cross-sectional view of a storage case having a schematic structure for illustrating the operation of the present invention.
FIG. 3 is a cross-sectional view of a storage case having a schematic structure for illustrating the operation of the present invention.
FIG. 4 is a cross-sectional view of a storage case having a schematic structure for illustrating the operation of the present invention.
FIG. 5 is a cross-sectional view of an embodiment of a storage case according to the present invention.
FIG. 6 is a front view of the above.
FIG. 7 is a side view of the above.
FIG. 8 is a perspective view of the main part in the vicinity of the wheel.
[Explanation of symbols]
10 Case body 11 Bottom plate 12 Top plate 16 Wheel 20 Middle case 22 Bottom plate

Claims (2)

In the storage case that allows the drawer-type middle case with the upper surface opened to be pulled out from the opening provided in the front of the case body, the height of the middle case is set to gradually decrease toward the front end, while the middle case is Set the height of the inner side of the case body to move forward and backward so that it gradually decreases toward the front end corresponding to the middle case, and the upper end of the middle case is inside the case body when the middle case is housed in the case body A storage case that is set so as to be in contact with the top plate, and further provided with a wheel on which the middle case is rotatably mounted near the opening of the bottom plate inside the case body. The shaft is provided at both ends of the wheel and dropped into grooves provided at both ends of the wheel rotation space provided on the bottom plate inside the case body, whereby the wheel is provided on the bottom plate inside the case body so as to be rotatable. The storage case described.

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