Tent – canopy – umbrella – or cane – Portable shelter – Combined
Reexamination Certificate
2002-10-08
2004-10-12
Wilkens, Janet M. (Department: 3637)
Tent, canopy, umbrella, or cane
Portable shelter
Combined
C135S121000, C135S117000, C403S053000, C403S056000, C248S252000, C472S118000
Reexamination Certificate
active
06802328
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to an adjustable canopy of a swing set, more particularly an adjustable canopy of a mobile swing set, which is relatively uncomplicated in structure, easy to assemble, and safe to use.
2. Brief Description of the Prior Art
Mobile swing sets can be moved, and are usually provided with canopies on the tops so that people playing the swings can be protected from hot sun. However, early canopies of swing sets are fixedly disposed on the tops of the frames of the canopy sets, and cannot be adjusted in position according to the position of the sun. Consequently, such canopies cannot protect the users of the swings from hot sun effectively all the time.
To overcome the above disadvantage, an adjustable canopy is provided to a swing set. Referring to
FIG. 1
, the adjustable canopy includes a fixed part
10
, an adjustable part
20
, a fixing element
30
, a canopy support (not numbered), a covering part (not shown), and an elastic member
40
. The fixed part
10
has a lower connecting portion
101
, and an upper connecting portion
102
, which is formed with a central through hole
104
, and an annular toothed portion
103
around the central through hole
104
. The adjustable part
20
has a main body
201
, and a connecting portion
204
projecting from a top of the main body
201
; the main body
201
has a central through hole
203
, and an annular toothed portion
202
around the central through hole
203
.
The fixed part
10
is fixedly joined to a top of the frame of a swing set at the lower connecting portion
101
. The adjustable part
20
is joined to the fixed part
10
with the toothed portion
202
facing the toothed portion
103
, and with the fixing element
30
being passed through the through hole
203
and screwed into the through hole
104
; the elastic member
40
is disposed between the parts
10
, and
20
. The canopy support is fixedly joined to the connecting portion
204
of the adjustable part
20
, on which the covering part is supported. Thus, the toothed portions
202
, and
103
usually engage each other for the adjustable part
20
to be kept in position.
To adjust the part
20
, the fixing element
30
is turned to move back from the fixed part
10
so that the toothed portion
202
disengages the toothed portion
103
. Then, the adjustable part
20
is pivoted on the fixing element
30
to a new position, and the fixing element
30
is tightly screwed into the hole
104
of the fixed part
10
again after the adjustment.
Therefore, the canopy can be adjusted to suitable position to block sunlight effectively. However, this adjustable canopy is found to have disadvantages as followings:
1. Having relatively many separate parts, the canopy is complicated in structure, and costs much labor to assemble.
2. The fixing element
30
has to be turned back from the through hole
104
, and turned back into the through hole
104
again respectively for allowing the adjustable part
20
to be adjusted, and after adjustment the adjustable part
20
. Therefore, the canopy is not very convenient to use.
3. The canopy support is prone to fall to cause injury to the users playing on the swings if the fixing element
30
is not securely connected to the fixed part
10
.
SUMMARY OF THE INVENTION
It is a main object of the present invention to provide an adjustable canopy to a swing set, which has relatively uncomplicated structure, and is easy to assemble and safe to use.
The adjustment device of an adjustable canopy of a swing set includes a fixed part, an engaging part, and an adjustable part. The fixed part is joined to the frame of a swing set, and has locating hooks. The engaging part is securely connected to the fixed part, and has engaging protrusions on an outer side, which have convexly curved surfaces, and plasticity.
The adjustable part has a securing portion, to which a support of a covering part of the canopy is securely connected. The adjustable part has a main body having a first annular wall projecting from one side the main body. The first annular wall has concavely curved sections on the inner side. The adjustable part has a second annular wall shaped to have an inward engaging surface on an inner side. The locating hooks are connected to the adjustable part such that the adjustable part can turn relative to the fixed part.
In combination, the concavely curved sections contact to engage the convexly curved protrusions. The inner side of the second annular wall of the adjustable part, which has the concavely curved sections, depresses the convexly curved protrusions when external force is exerted on the adjustable part to make the same to turn so that the canopy covering part can be adjusted.
REFERENCES:
patent: 4785190 (1988-11-01), Frankena
patent: 5039118 (1991-08-01), Huang
patent: 5190390 (1993-03-01), Ming-Tai
patent: 5765958 (1998-06-01), Lan
patent: 6383085 (2002-05-01), Tseng
patent: 6629801 (2003-10-01), Cheng
patent: WO 95/26151 (1995-10-01), None
Compex International Co., Ltd.
Rosenberg , Klein & Lee
Wilkens Janet M.
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