Information
-
Patent Grant
-
6510569
-
Patent Number
6,510,569
-
Date Filed
Monday, November 20, 200023 years ago
-
Date Issued
Tuesday, January 28, 200321 years ago
-
Inventors
-
-
Examiners
- Browne; Lynne H.
- Conley; Frederick
Agents
- Pro-Techtor International Services
-
CPC
-
US Classifications
Field of Search
US
- 005 991
- 005 981
- 005 931
- 005 982
-
International Classifications
-
Abstract
The present invention “Double locks for the chassis of game-bed” includes two locks on the center of the chassis of game-bed. The edges of double locks are connected to the vertical stands of game-bed via several pillars. When the bars inside the second cylinders stretch out, the chassis is locked. So, the game-bed cannot be folded if kids carelessly try to fold it; and thus the kids are safe. When users pull the handle of double locks, the bar will be forced to contract. Then, user may fold the game-bed for storage, thereby save space. The present invention promotes safety for the game-bed, is easy to use, and is a highly practical device.
Description
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a security device named double locks for the chassis of game-bed. After the device is installed in the game-bed, users need to pull the handle of device before they can fold the game-bed. The present invention is designed to promote safety, and prevent accidents from happening.
2. Description of the Prior Art
The present invention relates to a security device named double locks for the chassis of game-bed. The device includes, to the minimum extent, a handle and a flexible bar inside the second cylinder. The bar pushes up to lock the chassis. To fold the game-bed, users pull the handle to recoil the bar in order to unlock the device. When the double locks are installed in the game-bed, users are safer, and the probability of accidents is reduced.
SUMMARY OF THE INVENTION
When unfolded, the kid's game-bed occupies a large space. When users don't use the game-bed, they fold it for storage so as to save space. Users simply push the stands under chassis to fold the game-bed. It's that simple. Because it's so simple, it can be dangerous to the kids. When kids fold the game-bed by themselves, their fingers might be jammed. To alleviate the security concern and promote safety, the inventor has studied the structure of game-bed thoroughly, and then introduced the present invention for users' safety.
The present invention will be apparent in its contents of technique after reading the detailed description of the preferred embodiments of the present invention in reference to the accompanying drawings, wherein:
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1
is a stereoscopic assembly drawing of present invention;
FIG. 2
is a perspective view showing the appearance of present invention;
FIG. 3
is a sectional structural drawing of present invention;
FIG. 4
is a sectional view showing the present invention in motion;
FIG. 5
is another sectional view showing the present invention in motion.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
As shown in FIG. one and FIG. two, the game-bed includes, to the minimum extent, several upper stands
21
, vertical stands
22
, and side stands
23
. The double locks
9
on the bottom center of game-bed are essential for present invention. The present invention also includes, to the minimum extent, main unit
1
, releasing device
3
, two pieces of first cylinder
5
, two pieces of second cylinders
7
, and two corresponding bars
8
. The structure of present invention is described as follows:
There is a main unit
1
with a releasing device
3
on its top. First cylinder
5
,
5
and second cylinder
7
,
7
surround main unit
1
. On the top of main unit
1
are several keyholes
11
that hold screws
33
to lock the releasing device
3
. There are also two concave chutes
12
,
12
in the proper positions on the top. In addition, there are four pieces of tube-chutes
13
A,
13
A,
13
B,
13
B with open-base on the edge of main unit
1
. The tube-chutes
13
A that face each other connect the first cylinder
5
,
5
. There is a hole
15
passing through tube-chute
13
A horizontally. There is another hole
51
passing through the first cylinder
5
that allows screw
52
to pass through both hole
15
and hole
51
to lock the cap
53
. So, the first cylinder
5
can sway around with screw
52
serving as its axis. To fix first cylinder
5
in its position after it is set in tube-chute
13
A, a blocking object
131
on the bottom of tube-chute
13
A restricts the first cylinder
5
in the tube-chute
13
A. Other two tube-chutes
13
B are similar to tube-chutes
13
A in regard to structure. Tube-chutes
13
B connect to second cylinder
7
, and have blocking objects
133
. There is a hole
16
on the tube-chute
13
B horizontally. There is another hole
74
on second cylinder
7
. The screw
83
passes through hole
16
and hole
74
to lock the cap
84
. So, the second cylinder
7
can sway around with screw
83
serving as its axis.
The releasing device
3
consists of a base
31
, ring
32
, and axis
34
. The axis
34
passes through the base
31
and ring
32
. That's how the ring is fixed in the base
31
, and is free to move around. On the end of handle
32
are two pieces of swaying objects
35
. The swaying objects
35
are located right above the concave chute
12
of the main unit
1
.
There is a hole
71
on the second cylinder
7
. Screw
72
passes through the hole
71
to lock the cap
73
. Inside the second cylinder
7
is a spring
82
. The spring
82
is located between a bar
8
and screw
72
. There is an opening
812
on the bar
8
. Screw
83
passes through it, and locks at the end of second cylinder
7
. With the spring
82
inside the bar
8
, the bar
8
stretches out under normal condition. In addition, there is a flat area
811
on the external edge of bar
8
.
As shown by
FIG. 3
, when the game-bed is unfolded, which means that both first cylinder
5
,
5
and second cylinder
7
,
7
are placed flatly, first cylinder
5
,
5
and second cylinder
7
,
7
are inserted into their corresponding tube-chutes
13
A,
13
A, and
13
B,
13
B. At this time, the bar
8
,
8
of second cylinder
7
,
7
stretches outward to lock second cylinder
7
,
7
and main unit
1
together. As the second cylinder
7
,
7
cannot sway downward and cannot be folded, users are safe.
As shown by
FIG. 4
, to fold the game-bed, push the handle
32
of releasing device
3
upward, then move both swaying objects
35
downward into both concave chutes
12
,
12
of main unit
1
until the swaying objects touch the flat area
811
and force all bars
8
to recoil inside second cylinder
7
. After the unlocking procedure is completed, users may lift up the main unit
1
. As users lift up the main unit
1
, the angle between main unit
1
and second cylinder
7
decreases (as shown by FIG.
5
). Then, users may fold the game-bed.
As stated in preceding motion, users need to unlock the device before they can fold the game-bed. The present invention will reduce danger significantly if kids carelessly fold the game-bed.
Based on the preceding statement, the double locks for the chassis of game-bed is obviously an invention of breakthrough, and is a practical and safe device. The present invention has never been publicized/disclosed in any documents, nor distributed in the domestic/overseas market before. The present invention is, therefore, industrially valuable.
Claims
- 1. A double lock device for a frame of a playpen comprising:a main unit with a releasing device on a top side thereof, a releasing device comprising a base, a release handle, and an axle to pivotally attach said release handle to said base, and four frame legs pivotally attached to said main unit, said frame legs being normally locked in a deployed position; wherein a spring loaded retractable bar is inserted into inner ends of each of two opposing frame legs, said retractable bars being urged by a spring means toward an extended position when said frame legs are deployed; such that when a user lifts said release handle, projecting tabs on ends of said release handle contact flat areas of said retractable bars so as to apply outward pressure, thereby forcing said retractable bars into said opposing frame legs such that said locking device is released, and all said frame legs can be collapsed for storage.
- 2. The double lock device as defined in claim 1 wherein:two concave depressions are included on said top side of said main unit, said concave depressions corresponding in shape and location to said projecting tabs on said ends of said release handle.
- 3. The double lock device as defined in claim 1 wherein:said main unit comprises four openings to receive said frame legs, said openings each having an open lower side to accommodate pivoting of said frame legs.
- 4. The double lock device as defined in claim 3 wherein:each said opening comprises a blocking object on a lower portion thereof to hold said frame legs in said deployed position.
- 5. The double lock device as defined in claim 1 wherein:a pivot axle of each of said two opposing frame legs passes through both said retractable bar and said frame leg.
- 6. The double lock device as defined in claim 5 wherein:each said opening comprises a blocking object on a lower portion thereof to hold said frame legs in said deployed position.
US Referenced Citations (7)