DIY knockdown waste paper basket

Receptacles – Sectional – Barrel-shaped container

Reexamination Certificate

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Details

C220S004080

Reexamination Certificate

active

06299010

ABSTRACT:

BACKGROUND OF THE INVENTION
The present invention relates to a DIY knockdown waste paper basket in which by means of the engagement between the latch projections and the latch notches of the latch plates of the wall sheets, the wall sheets are prevented from resiliently bounding back. The wall sheets are more formly assembled into a basket body without using any click block so that the basket body has better roundness and can be more easily and quickly assembled and disassembled.
FIG. 1
shows a conventional DIY knockdown waste paper basket which includes an upper frame
10
, two wall sheets
20
, a base seat
30
and two click blocks
40
. The upper frame
10
defines a central opening
11
. The bottom face of upper frame
10
is formed with two downward extending annular stop walls
12
. The two stop walls
12
define therebetween a fitting groove
13
. Each wall sheet
20
is a rectangular flexible sheet body. One side of the wall sheet
20
is formed with multiple outward extending insertion plates
21
at equal intervals. The other side of the wall sheet
20
is formed with multiple insertion slits
22
at equal intervals corresponding to the insertion plates
21
. The middle of lower edge of the wall sheet
20
is formed with a latch hole
23
. The top face of the base seat
30
is formed with two upward extending annular stop walls
31
. The two stop walls
31
define therebetween a fitting groove
32
. The circumference of the stop walls
31
are formed with two opposite latch holes
33
. Each click block
40
includes a button
41
and two reverse hook-like resilient latch hooks
42
extending from inner side of the button
41
.
When assembled, as shown in
FIG. 2
, the insertion plates
21
(or insertion slits
22
) of one wall sheet
20
are first inserted into and connected with the insertion slits
22
(or insertion plates
21
) of the other wall sheet
20
so as to assemble the two wall sheets
20
into a substantially cylindrical basket body
1
. Then the bottom end of the cylindrical basket body
1
is inlaid into the annular fitting groove
32
of the base seat
30
with the latch holes
23
aligned with the latch holes
33
of the base seat
30
. Then the resilient latch hooks
42
of the two click blocks
40
are inward passed through the latch holes
23
,
33
of the cylindrical basket body
1
and the base seat
30
so as to fasten the cylindrical basket body
1
on the base seat
30
. Finally, the upper frame
10
is mated with the cylindrical basket body
1
with the top end of the cylindrical basket body
1
fitted into the annular fitting groove
13
of the upper frame
10
to complete the assembly.
The above arrangement has some shortcomings as follows:
1. The wall sheets
20
are assembled into the basket body
1
by means of insertion. The wall sheets
20
are resiliently flexible and the insertion plates
21
are not restricted by any restricting section. Therefore, after assembled and when the external force is removed, the insertion plates
21
are poorly fixed in the insertion slits
22
and the insertion plates
21
may further slip out of the insertion slits
22
to make the basket body
1
disassembled.
2. After the wall sheets
20
are assembled into the basket body
1
, the wall sheets
20
will slightly restore. In addition, the insertion plates
21
of the wall sheet
20
are intruded into the insertion slits
22
so that the roundness of the basket body
1
is poor (as shown in FIG.
3
). As a result, the appearance of the basket body
1
as a whole is poor.
3. It is necessary to use the click blocks
40
for truly fastening the basket body
1
with the base seat
30
so that the structure is complicated. Moreover, when disassembled, it is necessary to outward press the click blocks
40
out of the latch holes. Such procedure can be hardly easily and quickly performed.
SUMMARY OF THE INVENTION
It is therefore a primary object of the present invention to provide a DIY knockdown waste paper basket in which by means of the engagement between the latch projections and the latch notches, the two wall sheets are firmly assembled into a truly cylindrical basket body. After assembled and when the external force is removed, the latch projections are kept latched in the latch notches so that the latch plates are prevented from slipping out of the latch recesses due to resiliently restoring force. Therefore, the two wall sheets are more easily and firmly assembled into the basket body with a better rigidity.
It is a further object of the present invention to provide the above DIY knockdown waste paper basket in which after assembled, the latch projections are latched in the latch notches and the wall sheets are prevented from resiliently bounding back so that the basket body will have abetter roundness. Therefore, the waste paper basket has a better appearance.
It is still a further object of the present invention to provide the above DIY knockdown waste paper basket in which when assembling the basket body with the base seat, a user only needs to align the engaging fissure with the engaging block of the base seat and rotarily lock the engaging fissure with the engaging block for fastening the basket body on the base seat. Therefore, no click block is necessary and the structure as a whole is simplified. Also, the waste paper basket can be more easily and quickly disassembled for storage.
The present invention can be best understood through the following description and accompanying drawings wherein:


REFERENCES:
patent: 1125822 (1915-01-01), Dodds
patent: 1500917 (1924-07-01), Bell
patent: 1852281 (1932-04-01), Bell
patent: 1976209 (1934-10-01), Ashe
patent: 5056679 (1991-10-01), Lonczak
patent: 5372269 (1994-12-01), Sutton et al.
patent: 561706 (1932-10-01), None

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