Title:
Fencing device
Kind Code:
A1


Abstract:
A fencing device has at least one first fence and at least one second fence adjacent to the first fence, and at least one positioning device. The first fence has an upper block and a lower block respectively formed at an upper end and a lower end thereof, an upper ear and a lower ear. The upper ear has multiple first skewed surfaces, and each positioning device has a seat having multiple second skewed surfaces. With the interconnection of the first skewed surfaces and the second skewed surfaces, the present invention can be folded or unfolded conveniently.



Inventors:
Cheng, Shu-chen (Taipei Hsien, TW)
Application Number:
11/374449
Publication Date:
09/13/2007
Filing Date:
03/13/2006
Primary Class:
International Classes:
E04H17/16
View Patent Images:
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Primary Examiner:
MACARTHUR, VICTOR L
Attorney, Agent or Firm:
Thomas E. Sisson (San Antonio, TX, US)
Claims:
What is claimed is:

1. A fencing device comprising: at least one first fence each having a lower block mounted on a lower end of the first fence and having a first cone-shaped chamber defined in an upper end of the lower block, an upper block mounted on an upper end of the first fence and having a second cone-shaped chamber defined in a lower end of the upper block, a lower collar mounted in the lower block and having a lower cap mounted around an upper end of the lower collar and mated with the first cone-shaped chamber, an upper collar mounted under the upper block and having an upper cap mounted around a lower end of the upper collar and mated with the second cone-shaped chamber; at least one second fence connected to the at least one first fence and each having a lower ear mounted on the lower block of a corresponding first fence and having a notch defined in a center of the lower ear, an upper ear mounted under the upper block of the corresponding first fence and having multiple first skewed surfaces formed in an inner wall of the upper ear and each having a first lowermost end, and a first uppermost end; at least one positioning device mounted between each pair of adjacent first fence and second fence and each comprising a seat attached to a corresponding upper ear and having a head formed in an upper end of the seat, attached to the corresponding upper ear and having multiple second skewed surfaces formed in an inner wall of the head and each having a second lowermost end, and a second uppermost end, and a coil spring mounted inside the seat; and a barrel slidably mounted in the seat and positioned to the notch in a corresponding lower ear via a lower end of the barrel and having a slot longitudinally defined in the barrel, a plug attached to a top end of the barrel and contacting with the coil spring, and a pin inserted into the slot and the seat.

2. The fencing device as claimed in claim 1, wherein a symbol is provided on the upper block of each one of the at least one first fence.

3. The fencing device as claimed in claim 1, wherein each one of the at least one positioning device further has a washer provided under a corresponding lower block.

4. The fencing device as claimed in claim 1, wherein an indicator is provided in the upper ear of each one of the at least one second fence.

5. The fencing device as claimed in claim 1, wherein the lower ear of each one of the at least one second fence further has a guiding groove defined in an upper end of the lower ear, extending from an inner wall to an outer wall of the lower ear, and communicating with the notch on the lower ear.

6. The fencing device as claimed in claim 5, wherein a mark is provided in the seat of each one of the at least one positioning device.

7. The fencing device as claimed in claim 1, wherein multiple first even-spaced stripes are longitudinally provided in an inner wall of the lower collar of each one of the at least one first fence and multiple second even-spaced stripes are longitudinally provided in an inner wall of the upper collar of each one of the at least one first fence, and multiple evenly-spaced slots are longitudinally defined in an inner wall of the upper ear and the lower ear of each one of the at least one second fence and the slots are respectively mated with the first even-spaced stripes and the second even-spaced stripes of on corresponding upper and lower collars.

8. The fencing device as claimed in claim 1, wherein the upper block of each one of the at least one first fence has multiple even-spaced teeth formed on an inner wall of the upper block, and the upper ear of each one of the at least one second fence is mounted with a corresponding upper collar and has multiple teeth engaging with the teeth on the corresponding upper collar to securely connect the upper block to the upper ear.

Description:

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to a fencing device, and more particularly to a fencing device which can be folded and unfolded conveniently.

2. Description of the Related Art

A main purpose of fences is to surround children or ovens to prevent children from going around or from contacting with the ovens.

In a conventional fencing device, particularly intended for small children, a spring is pressed via a pin being pulled so that a first and a second hinge portions can be separated from each other. Hence, the first hinge portion can be rotated relative to the second hinge portion to adjust the fencing device.

Disadvantages of the conventional fence device are described as follows:

1. The first and the second hinge portions are easy to collide when being adjusted.

2. The first and the second hinge portions must be separated from each other completely when adjusting the conventional fencing device thereby causing inconvenience.

Therefore, the invention provides a fencing device to mitigate or obviate the aforementioned problems.

SUMMARY OF THE INVENTION

The main objective of the present invention is to provide a fencing device which is easy to be folded and unfolded.

Other objectives, advantages and novel features of the invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view of a fencing device in accordance with the present invention being unfolded;

FIG. 2 is an exploded perspective view of a first preferred embodiment of the fencing device in accordance with the present invention;

FIG. 3 is a partially exploded perspective view of the first preferred embodiment of the fencing device in FIG. 2;

FIG. 4 is a side view in partial section of the first preferred embodiment of the fencing device in FIG. 2;

FIG. 5 is an operational side view in partial section of the first preferred embodiment of the fencing device in FIG. 4;

FIG. 6 is a perspective view of the fencing device in FIG. 1 being folded;

FIG. 7 is a perspective view of an upper block of a second preferred embodiment of a fencing device in accordance with the present invention;

FIG. 8 is a bottom perspective view of the upper block of the second preferred embodiment of the fencing device in FIG. 7;

FIG. 9 is a perspective view of an upper ear of the second preferred embodiment of the fencing device in accordance with the present invention; and

FIG. 10 is a perspective view of the fencing device in accordance with the present invention being used to form a hexagon status.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

With reference to FIGS. 1-4, a first preferred embodiment of a fencing device in accordance with the present invention comprises at least a first fence (10), at least a second fence (20) adjacent to the first fences (10) and at least one positioning device.

Each first fence (10) has a lower block (11), an upper block (12), a lower collar (31) and an upper collar (32). The lower block (11) and the upper block (12) are respectively provided on a lower end and an upper end of the first fence (10). The lower block (11) has a first cone-shaped chamber (111) defined in an upper end thereof, and the upper block (12) has a second cone-shaped chamber (121) defined in a lower end thereof. A symbol (122) is provided on the upper block (12) to indicate angle adjustment between the adjacent first fence (10) and second fence (20).

Each second fence (20) comprises a lower ear (21) and an upper ear (22) respectively provided on a lower end and an upper end thereof The lower ear (21) and the upper ear (22) respectively have multiple evenly-spaced slots (23) longitudinally defined on an outer wall thereof. The upper ear (22) has an indicator (224) and multiple first skewed surfaces (221). The indicator (224) is formed on the upper ear (22) to indicate that the first fence (10) is locked to the corresponding second fence (20). Each first skewed surface (221), which has a first uppermost end (222) and a first lowermost end (223), is provided in an inner wall of the upper ear (22). The lower ear (21) has a notch (211) defined therein and a guiding groove (212) defined in an upper end of the lower ear (21) and extending from an inner wall to an outer wall of the lower ear (21). The notch (211) communicates with the guiding groove (212).

A lower cap (33), which is made of rubber or plastic, is integrally formed at a lower end of the lower collar (31) while an upper cap (34), having the same material as the lower cap (33), is integrally formed at an upper end of the upper collar (32). Multiple first even-spaced stripes (35) are longitudinally provided in an inner wall of the lower collar (33) and multiple second even- spaced stripes (36) are longitudinally provided in an inner wall of the upper collar (32). The slots (23) on the ears (21,22) are respectively mated with the first even-spaced stripes (35) and the second even-spaced stripes (36).

At least one positioning device is mounted between each pair of adjacent first fence (10) and second fence (20) and each comprises a washer (30), a seat (40), and a barrel (50)

The washer (30) is provided under the lower block (11) wherein the upper collar (32) is provided under the second cone-shaped chamber (121) of the upper block (12). The upper cover (34) is held inside and contacted with the second cone-shaped chamber (121) to enhance the friction between them. The lower collar (31) is mounted under the lower ear (32) while the upper collar (32) is mounted above the upper ear (22).

The barrel-like seat (40) is attached to the upper ear (22) and has a mark (401) to indicate that the first fence (10) is securely fastened to the second fence (20). A head (41) is mounted on an upper end of the seat (40) and is attached to the upper ear (22). Multiple second skewed surfaces (42) are respectively formed in an inner wall of the head (41) and each have a second uppermost end (421) and a second lowermost end (422). A lower end of the seat (40) is hollow and a through hole (43) is radially defined through the seat (40). A coil spring (44) is mounted inside the seat (40).

The hollow barrel (50) has a slot (51) longitudinally defined near an upper end of the barrel (50), and a plug (52) mounted at the upper end. The upper end of the barrel (50) is inserted into and held inside the seat (40) and a lower end of the barrel (50) is positioned in the notch (211). The plug (52) is contacted with a lower end of the coil spring (44).

A pin (60) is transversely inserted into the through hole (43) and the slot (51) in turn so that the barrel (50) can only move upwards or downwards along the seat (40).

With reference to FIGS. 1 and 4, when the first lowermost surface (223) is engaged with the first uppermost surface (421), the upper cover (34) is pressed against the upper ear (22) with the biasing force provided by the coil spring (44) while the lower cover (33) is pressed against the lower ear (21). Hence, the first fence (10) is fastened to the second fence (20).

With reference to FIGS. 5 and 6, the seat (40) is rotated relative to the upper ear (22) manually so that the first uppermost end (421) is engaged with the second uppermost end (222) and the first lowermost end (422) is engaged with the second lowermost end (223). Hence, the coil spring (40) resumes an original status so that the first fence (10) can be folded relative to the second fence (20) to occupy little space for storage.

With reference to FIGS. 1, 7-9 and in a second preferred embodiment of a fencing device in accordance with the present invention, the fencing device is similar to the first preferred embodiment except that an upper block (12A) has multiple even-spaced teeth (12B) formed around an inner wall of the upper block (12A). An upper ear (22A) is integrally formed on the upper collar (32) and have multiple teeth (22B) formed at a periphery of the upper ear (22A). The teeth (12B) are respectively mated with the teeth (22B) to fasten the upper block (12A) to the upper ear (22A).

With reference to FIG. 10, the present invention is encircled to form a hexagon so that children can stay in the present invention to be protected.

It is to be understood, however, that even though numerous characteristics and advantages of the present invention have been set forth in the foregoing description, together with details of the structure and function of the invention, the disclosure is illustrative only. Changes may be made in details, especially in matters of shape, size, and arrangement of parts within the principles of the invention to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed.