U.S. patent application number 11/357804 was filed with the patent office on 2007-08-16 for fence and its fixing device.
Invention is credited to Fu-Yao Cheng.
Application Number | 20070187661 11/357804 |
Document ID | / |
Family ID | 38367449 |
Filed Date | 2007-08-16 |
United States Patent
Application |
20070187661 |
Kind Code |
A1 |
Cheng; Fu-Yao |
August 16, 2007 |
Fence and its fixing device
Abstract
A fence is made integral of plastic foam material by injecting
molding, having an inner shock-enduring layer contained in the
interior, and shaped corrugated to have a plurality of lengthwise
convex ridges and lengthwise concave recesses alternately connected
with each other, with a light reflecting strip or dot adhered on
each ridge. The fixing device of the fence includes a fixing base
and a fixing block, and the fixing base is provided with a
fence-contacting surface for combining with the fence. The fixing
block is fixed with a bolt on a front surface of the fence at the
spot where the fence is to be fixed with the vertical post, with
the fixing base placed behind the fence. Thus the fence can be
installed stably at two sides of a road,
Inventors: |
Cheng; Fu-Yao; (Tung-Kang
Town, TW) |
Correspondence
Address: |
J.C. Patents
Suite 250
4 Venture
Irvine
CA
92618
US
|
Family ID: |
38367449 |
Appl. No.: |
11/357804 |
Filed: |
February 16, 2006 |
Current U.S.
Class: |
256/19 |
Current CPC
Class: |
E01F 15/0423 20130101;
E01F 15/0438 20130101; E01F 15/0453 20130101 |
Class at
Publication: |
256/019 |
International
Class: |
E04H 17/14 20060101
E04H017/14 |
Claims
1. A fence made integral of plastic foam material and having a
corrugated shape with a plurality of lengthwise convex ridges and a
plurality of lengthwise concave recesses alternately connected each
other, a light reflecting strip formed integral on each said ridge
to provide said fence with a light reflecting function; an inner
shock-enduring layer contained in said fence during its injecting
molding so that said fence is substantively elastic, and not to be
easily broken or rifted to have a safety function for protecting
persons or cars.
2. A fence and its fixing device comprising: a fence provided with
an upper lengthwise end, a lower lengthwise end and a plurality of
boltholes; a fixing block bored with a through hole; a fixing base
having a fence contacting surface, a hole formed in said fence
contacting surface for a blot to tighten said fixing block and said
fence with said fixing base, said fence contacting surface having
an upper edge and a lower edge; said fixing base further provided
with a side through hole and a post contacting surface for tightly
combining with a post; said fixing base firstly fastened with said
post with a bolt, said fence then fixed with said fixing base so
that said post, said fixing base and said fence may be tightly
combined all together.
3. A fence and its fixing device comprising: a fence provided with
an upper lengthwise end, a lower lengthwise end and a plurality of
boltholes; a fixing block bored with a through hole; a fixing base
provided with a fence contacting surface, said fence contacting
surface having a hole for a bolt to pass through to tighten said
fixing block and said fence with said fixing base, said fence
contacting surface provided with an upper edge and a lower edge,
said fixing base further having a side through hole and a post hole
for a post to vertically pass through, an upper fixing ring fitted
around an upper portion of said post and a lower fixing ring fitted
around a lower portion of said post, a bolt engaging through said
upper and said lower fitting ring to tightly fix said upper and
said lower fitting ring to said post for fixing tightly said fixing
base with said post; said fixing base firstly fixed with said post
with said bolt, said fence then fixed with said fixing base so that
said fence, said fixing base and said post may be tightly combined
all together.
4. The fence and its fixing device as claimed in claim 2, wherein
said fixing block is provided with an inner surface conformed to
the shape of the surface of said fence so that said fixing block
may contact closely with said post.
5. The fence and its fixing device as claimed in claim 2, wherein
said fixing block has a light reflecting dot attached respectively
on its two sides.
6. The fence and its fixing device as claimed in claim 2, wherein
said fixing base is provided with a groove between said upper edge
and said fence contacting surface, and between said lower edge and
said contacting surface, so said upper end and said lower end of
said fence may fit in said grooves first for convenience of
subsequent assembling work.
7. The fence and its fixing device as claimed in claim 2, wherein
said post contacting surface of said fixing base is provided with a
rectangular hole and two sidewalls so that said fixing base may be
corrected in its location to said post so as to cope with an error
of the height of said post after buried in the ground, and may be
combined with said post smoothly and accurately.
8. The fence and its fixing device as claimed in claim 3, wherein
said fixing block is provided with an inner surface conformed to
the shape of the surface of said fence so that said fixing block
may contact closely with said post.
9. The fence and its fixing device as claimed in claim 3, wherein
said fixing block has a light reflecting dot attached respectively
on its two sides.
10. The fence and its fixing device as claimed in claim 3, wherein
said fixing base is provided with a groove between said upper edge
and said fence contacting surface, and between said lower edge and
said contacting surface, so said upper end and said lower end of
said fence may fit in said grooves first for convenience of
subsequent assembling work.
Description
BACKGROUND OF THE INVENTION
[0001] 1. Field of the Invention
[0002] This invention relates to a fence and its fixing device,
particularly to one made of plastic foam material with
shock-enduring property for positioned stably at two sides of a
road by means of the fixing device, and its fixing work is quick
and simple,
[0003] 2. Description of the Prior Art
[0004] A conventional fence fixed at two sides of a road shown in
FIG. 1 includes a fence 1 made of metal and a post 11. The fence 1
is provided with plural boltholes 10 for bolts 13 to tighten the
fence with the post 11, with a buffer block 212 sandwiched between
the fence 1 and the post 11. But the metal fence 1 may be limited
in its length, and it takes much time in fixing the fence 1 with
the post 11, which is made of concrete, metal, wood, etc. and
concrete may be the preferable material for the post 11 because of
its anti-corrosion. The buffer block 12 is made of wood, having
buffering function for the fence 1.
[0005] However, the conventional fence and its fixing device have
been found to have the following disadvantages. [0006] 1. The metal
fence 1 is devoid of elasticity, and easily bends in case of shock
a car receives, having a potential danger for persons and cars,
Moreover, a reflective strip is not easily attached on its surface,
so reflective paint has to be used, but reflective paint may be
liable to peel off. [0007] 2. In fixing the fence with the post,
the bolt and nut 13 and a buffer block 12 are used, but the buffer
block 12 is made of wood, easily rotten by means of elements,
resulting in a problem of replacing it even if it might not be hit
to break off. [0008] 3. In positioning it at two sides of a road,
much workload is necessary for combining the fence, the post and
the buffer block, delaying the work.
SUMMARY OF THE INVENTION
[0009] The inventin has the following features. [0010] 1. The fence
is made integral of plastic foam material, having a plurality of
light reflecting strips or spots on its outer surface, containing
an shock-enduring layer for boosting enduring force to shocks, not
easily rifting and making it very safe to humans and cars. [0011]
2. The fixing device of the fence consists of a fixing base, a
fixing block and a post, The fixing base is combined with the post
first, and then the fence is fixed with the fixing base, saving
assembling work and quickening its work. [0012] 3. The fixing base
is provided with a fence-contacting surface for fixing with the
fence tightly, and with a post-contacting surface for fixing with
the post tightly. So the fence can be assembled with the fixing
base and the post together with easiness and quickness.
BRIEF DESCRIPTION OF DRAWINGS
[0013] This invention will be better understood by referring to the
accompanying drawings, wherein:
[0014] FIG. 1 is an exploded perspective view of a conventional
fence and its fixing device;
[0015] FIG. 2 is a cross-sectional view of a first embodiment of a
fence in the present invention;
[0016] FIG. 3 is a perspective view of the first embodiment of a
fence fixed on a post in the present invention;
[0017] FIG. 4 is a cross-sectional view of a second embodiment of a
fence in the present invention;
[0018] FIG. 5 is a perspective view of the second embodiment of a
fence fixed with a post in the present invention;
[0019] FIG. 6 is a cross-sectional view of a third embodiment of a
fence in the present invention;
[0020] FIG. 7 is a cross-sectional view of a fourth embodiment of a
fence in the present invention;
[0021] FIG. 8 is a cross-sectional view of a fifth embodiment of a
fence in the present invention;
[0022] FIG. 9 is a cross-sectional view of a sixth embodiment of a
fence in the present invention;
[0023] FIG. 10 is a cross-sectional view of a seventh embodiment of
a fence in the present invention;
[0024] FIG. 11 is a cross-sectional view of the fence in the
present invention receiving a shock;
[0025] FIG. 12 is an exploded perspective view of a first
embodiment of a fixing device for the fence in the present
invention;
[0026] FIG. 13 is a cross-sectional view of the first embodiment of
a fixing device combined with the fence in the present
invention;
[0027] FIG. 14 is a perspective view of the first embodiment of a
fixing device combined with the fence in the present invention;
[0028] FIG. 15 is a perspective view of the first embodiment of a
fixing device combined with two fences in the present
invention;
[0029] FIG. 16 is an exploded perspective view of a second
embodiment of a fixing device in the present invention;
[0030] FIG. 17 is a perspective view of the second embodiment of a
fixing device combined with the fence in the present invention;
[0031] FIG. 18 is a perspective view of the second embodiment of a
fixing device combined with two fences in the present
invention;
[0032] FIG. 19 is an exploded perspective view of a third
embodiment of a fixing device in the present invention; and,
[0033] FIG. 20 is a perspective view of the third embodiment of a
fixing device combined with two fences in the present
invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0034] A first preferred embodiment of a fence in the present
invention, as shown in FIGS. 2 and 3, includes a fence 2 shaped
corrugated, having a plurality of lengthwise convex ridges 20 and a
plurality of concave recesses 21 alternate with each other, and a
light reflective strip 3 attached on each convex ridge 20. Further
the fence 2 has an upper lengthwise end 22, a lower lengthwise end
23, and a bolt hole 24 bored through each recess, and an inner
shock-enduring layer 4 formed in its interior.
[0035] Next, a second preferred embodiment of a fence in the
present invention is shown in FIGS. 4 and 5, including a fence 2
also corrugated and provided with a plurality of convex ridges 20
and a plurality of concave recesses 21 as the first preferred
embodiment, and a plurality of light reflecting dots 3A attached on
each bolt engaging with the fence 2. Further, the fence 2 is
provided with an inner shock-enduring layer 4 in the same way as
the first embodiment.
[0036] A third preferred embodiment of a fence in the present
invention is shown in FIG. 6, includes a fence 2 provided with a
plurality of convex ridges 20 and a plurality of concave recesses
21 as the second preferred embodiment, and a plurality of light
reflecting strips or dots 3B attached and spaced apart on the
ridges 20.
[0037] Next, FIGS. 7, 8, 9 and 10 shows respectively a fourth, a
fifth, a sixth and a seventh preferred embodiment of the fence in
the present invention, modified from the first, the second and the
third embodiment with a difference that light reflecting strips or
dots 3, 3A, or 3B are not used, but the material of the fence is
mixed with light reflecting material so that the fence itself can
reflect light.
[0038] Moreover, each embodiment of a fence is provided with the
inner shock-enduring layer 4, and the layer 4 can be single as
shown in FIGS. 2-9, or plural as shown in FIG. 10, made of any
material, but preferably fiber, metal nets, plastic nets, metal
pieces, or linear ones, so long as it has substantive elasticity
and flexibility.
[0039] Next, a first preferred embodiment of a fixing device for
the fence in the present invention, as shown in FIGS. 12, 13, 14
and 15, includes a fixing block 5, and a fixing base 6.
[0040] The fixing block 5 is provided with a through hole 50, and
an inner curved surface 15 to suit to the surface of the fence 2 so
as to enable the fixing block 5 tightly contact with the fence
2.
[0041] The fixing base 6 is provided with a fence contacting
surface 60, a holes 600 formed in the fence contacting surface 60
for a bolt 61 to pass through the through holes 50 of the fixing
block 5 and further through the hole 24 of the fence 2 so that the
fixing base 60 may be accurately combined with the fence 2, and
also connecting two fences 2 with each other, if necessary.
Further, the fixing base 6 is provided with an upper edge 601 and a
lower edge 602, and a groove 603 is formed between the upper edge
601 and the contact surface 60 and also between the lower edge 602
and the contact surface 60. Then the upper end 22 and the lower end
23 of the fence 2 can fit just in the groove 603 in case of
combining them together for convenience of screwing work. Further,
a hollow 604 of a proper width is formed in the interior of the
fixing base 6, letting a tool or a hand to extend therein for
screwing. Moreover, the fixing base 6 is provided with a lower flat
surface 605 for contacting closely with the surface of the post 11,
and the lower flat surface 605 is provided with a rectangular hole
606 and two sidewalls 607. The rectangular hole 606 is for
adjusting the error of the height of the post 11 after buried in
the ground for the bolt 70 to be screwed with the post 11 properly,
and the two sidewalls 607 are for smooth combination of the fixing
base 6 with the post 7 and for correcting the position of the
fixing base 6 relative to the post 11.
[0042] In assembling the fence with the post, the fixing base 6 is
in advance combined with the post 7, and then the fence 2 is
combined with the fixing base 6. Therefore, the assembling work can
be carried out smoothly and quickly.
[0043] Next, FIGS. 16, 17 and 18 show a second preferred embodiment
of a fixing device in the present invention, which is derived from
the first embodiment, having a difference that a fixing base 6A is
provided with a post hole 608 for a round post 7 to pass through,
but the round post 7 has to pass through a fixing ring 71 first,
and then a bolt 710 is used to tighten the fixing ring 71 to the
round post 7, and then another fixing ring 72 is fitted around and
tightened by a bolt 720 with the upper exposed portion of the post
7 on the fixing base 6A, finishing combining the fixing base 6A
with the post 7.
[0044] Further, FIGS. 19 and 20 show a third preferred embodiment
of a fixing device in the present invention. The difference of the
third preferred embodiment from the first and the second one is a
light reflecting dot 52 is attached respectively on two sides of a
fixing block 5A, beefing up light reflecting effect for more safety
of the for cars and persons.
[0045] The light reflecting strips or dots provided in the fence in
the invention hardly fall off, extremely effective in a remote area
or an area installed with no road lamps. Besides, the fence is made
integral of plastic foam material by means of injecting molding,
characterized by shock absorbing property, light reflecting
function, and not falling off of the light reflecting strips or
dots.
[0046] While the preferred embodiments of the invention have been
described, it will be recognized that various modifications may be
made therein and the appended claims are intended to cover all such
modifications that may fall within the spirit and scope of the
invention.
* * * * *