U.S. patent application number 14/424719 was filed with the patent office on 2015-08-20 for folding chair.
This patent application is currently assigned to NEW-TEC INTEGRATION (XIAMEN) CO., LTD.. The applicant listed for this patent is NEW-TEC INTEGRATION (XIAMEN) CO., LTD.. Invention is credited to Luhao Leng.
Application Number | 20150230614 14/424719 |
Document ID | / |
Family ID | 48053302 |
Filed Date | 2015-08-20 |
United States Patent
Application |
20150230614 |
Kind Code |
A1 |
Leng; Luhao |
August 20, 2015 |
FOLDING CHAIR
Abstract
A folding chair includes a seat base, a seat back, two front
legs and two rear legs. The upper portions of the two rear legs are
respectively connected to the rear portions of the left and right
side edges of the seat base, wherein the upper portions of the two
front legs are respectively connected to the central portions of
the left and right side edges of the seat base, the upper ends of
the rear legs are rotatably pivot jointed to the upper ends of the
front legs. A U-shaped pipe is disposed at the two sides of the
seat back comprising a U-shaped section and two fixation sections
to connect to the two front legs, two fixation sections are
respectively extended inclinedly and outwardly from the two ends at
the opening of the U-shaped section, the U-shaped section and the
front legs are not on a line.
Inventors: |
Leng; Luhao; (Xiamen,
CN) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
NEW-TEC INTEGRATION (XIAMEN) CO., LTD. |
Xiamen, Fujian |
|
CN |
|
|
Assignee: |
NEW-TEC INTEGRATION (XIAMEN) CO.,
LTD.
Xiamen, Fujian
CN
|
Family ID: |
48053302 |
Appl. No.: |
14/424719 |
Filed: |
August 20, 2013 |
PCT Filed: |
August 20, 2013 |
PCT NO: |
PCT/CN2013/081895 |
371 Date: |
February 27, 2015 |
Current U.S.
Class: |
297/56 |
Current CPC
Class: |
A47C 4/10 20130101; A47C
7/02 20130101; A47C 4/20 20130101; A47C 4/04 20130101 |
International
Class: |
A47C 4/04 20060101
A47C004/04; A47C 7/02 20060101 A47C007/02 |
Foreign Application Data
Date |
Code |
Application Number |
Aug 28, 2012 |
CN |
201210310164.5 |
Claims
1. A folding chair, comprising a seat base, a seat back, two front
legs and two rear legs, the upper portions of the two rear legs are
respectively connected to the rear portions of the left and right
side edges of the seat base, wherein the upper portions of the two
front legs are respectively connected to the central portions of
the left and right side edges of the seat base, the upper ends of
the rear legs are rotatably pivot joint to the upper ends of the
front legs, two sides of the seat back are respectively configured
to be fixation section pipe, the fixation section pipes are
respectively connected to the two front legs, the fixation section
pipe and the corresponding front leg are not on a line, the
connection point therebetween is a flex point.
2. The folding chair according to claim 1, wherein the pipe
disposed at the two sides of the seat back is a U-shaped pipe
comprising a U-shaped section to fix the seat back and two fixation
sections to connect to the two front legs, two fixation sections
are respectively extended inclinedly and outwardly from the two
ends at the opening of the U-shaped section, the U-shaped section
and the front legs are not on a line, the U-shaped section is
migrated towards the rear legs.
3. The folding chair according to claim 2, wherein the distance
between the fixation section and the seat base is smaller than the
distance between the fixation section and the seat back.
4. The folding chair according to claim 2, wherein fixation section
comprises a first connection rod and a second connection rod, the
first connection rod is fixedly connected to the front leg, the
second connection rod is connected to the U-shaped section, the
angle between the first connection rod and the second connection
rod is an obtuse angle, the angle between the second connection rod
and the U-shaped pipe is an obtuse angle.
5. The folding chair according to claim 4, wherein the diameters of
the front leg, the first connection rod, the second connection rod
and the U-shaped section decreases in order.
6. The folding chair according to claim 4, wherein a side of the
upper end of the front leg is disposed with a pivot ear, the upper
end of the rear leg is pivot joint to the pivot ear, the first
connection rod is inserted into the front leg.
7. The folding chair according to claim 4, wherein a side of the
upper end of the front leg is disposed with a pivot ear, the upper
end of the rear leg is pivot joint to the pivot ear, the first
connection rod abuts against the pivot ear.
8. The folding chair according to claim 6, wherein further
comprising sleeve connectors, the sleeve connectors are sleeved on
the connection portion of the front legs and the fixation
sections.
9. The folding chair according to claim 7, wherein further
comprising sleeve connectors, the sleeve connectors are sleeved on
the connection portion of the front legs and the fixation
section.
10. The folding chair according to claim 3, wherein fixation
Section comprises a first connection rod and a second connection
rod, the first connection rod is fixedly connected to the front
leg, the second connection rod is connected to the U-shaped
section, the angle between the first connection rod and the second
connection rod is an obtuse angle, the angle between the second
connection rod and the U-shaped pipe is an obtuse angle.
11. The folding chair according to claim 10, wherein the diameters
of the front leg, the first connection rod, the second connection
rod and the U-shaped section decreases in order.
12. The folding chair according to claim 10, wherein a side of the
upper end of the front leg is disposed with a pivot ear, the upper
end of the rear leg is pivot joint to the pivot ear, the first
connection rod is inserted into the front leg.
13. The folding chair according to claim 10, wherein a side of the
upper end of the front leg is disposed with a pivot ear, the upper
end of the rear leg is pivot joint to the pivot ear, the first
connection rod abuts against the pivot ear.
14. The folding chair according to claim 12, wherein further
comprising sleeve connectors, the sleeve connectors are sleeved on
the connection portion of the front legs and the fixation
sections.
15. The folding chair according to claim 13, wherein further
comprising sleeve connectors, the sleeve connectors are sleeved on
the connection portion of the front legs and the fixation section.
Description
FIELD OF THE INVENTION
[0001] The present invention relates to a folding chair.
BACKGROUND OF THE INVENTION
[0002] Chairs are one kind of daily furniture in people's life,
they are provided for rest at home, in the offices, the restaurant
and other places. A folding chair is disclosed in the Chinese
patent database with application number 200810071407.8 in Jul. 10,
2008. the folding chair comprises a first diverse-U-shaped piece
that bended from a straight pole with two free end poles at the two
sides of the opening thereof respectively formed to be two front
legs; a second diverse-U-shaped piece the bended from a shorter
straight pole with two free ends poles at the two sides of the
opening thereof respectively formed to be two rear legs; a seat
base and a seat back. The top portion of the second
diverse-U-shaped piece is pivot joint to a front connector and is
fixedly connected to the front portion of the seat base by the
front connector. The central portions of the two front legs of the
first diversion-U-shaped piece are respectively pivot joint to a
rear connector, two rear connectors are respectively slidably
connected to the two side edges of the seat base, so that the seat
base, when sliding with respect to the rear connectors, changes
position about the two front legs. The central portions of the two
rear legs of the second diversion-U-shaped piece are respectively
pivot joint to the low central portions of the two front legs of
the first diverse-U-shaped piece. The seat back is fixedly
connected between the top portions of the two front legs of the
first diverse-U-shaped piece and is connected to the pole portion
of the first diversion-U-shaped piece without free ends.
[0003] However, the distance of the front end of the seat base and
the seat back is short, users sit a small area on the folding
chair, thus making it uncomfortable to sit.
SUMMARY OF THE INVENTION
[0004] The present invention is provided with a cozy folding chair,
which overcomes the disadvantage of the existing technology. The
technical proposal of the present invention to solve the technical
problem is that:
[0005] A folding chair, comprising a seat base, a seat back, two
front legs and two rear legs, the upper portions of the two rear
legs are respectively connected to the rear portions of the left
and right side edges of the seat base, wherein the upper portions
of the two front legs are respectively connected to the central
portions of the left and right side edges of the seat base, the
upper ends of the rear legs are rotatably pivot joint to the upper
ends of the front legs, two sides of the seat back are respectively
configured to be fixation section pipe, the fixation section pipes
are respectively connected to the two front legs, the fixation
section pipe and the corresponding front leg are not on a line, the
connection point therebetween is a flex point.
[0006] In another preferred embodiment, the pipe disposed at the
two sides of the seat back is a U-shaped pipe comprising a U-shaped
section to fix the seat back and two fixation sections to connect
to the two front legs, two fixation sections are respectively
extended inclinedly and outwardly from the two ends at the opening
of the U-shaped section, the U-shaped section and the front legs
are not on a line, the U-shaped section is migrated towards the
rear legs.
[0007] In another preferred embodiment, the distance between the
fixation section and the seat base is smaller than the distance
between the fixation section and the seat back.
[0008] In another preferred embodiment, the fixation section
comprises a first connection rod and a second connection rod, the
first connection rod is fixedly connected to the front leg, the
second connection rod is connected to the U-shaped section, the
angle between the first connection rod and the second connection
rod is an obtuse angle, the angle between the second connection rod
and the U-shaped pipe is an obtuse angle.
[0009] In another preferred embodiment, the diameters of the front
leg, the first connection rod, the second connection rod and the
U-shaped section decreases in order.
[0010] In another preferred embodiment, a side of the upper end of
the front leg is disposed with a pivot ear, the upper end of the
rear leg is pivot joint to the pivot ear, the first connection rod
is inserted into the front leg.
[0011] In another preferred embodiment, a side of the upper end of
the front leg is disposed with a pivot ear, the upper end of the
rear leg is pivot joint to the pivot ear, the first connection rod
abuts against the pivot ear.
[0012] In another preferred embodiment, it further comprises sleeve
connectors, the sleeve connectors are sleeved on the connection
portion of the front legs and the fixation sections.
[0013] Compared to the existing technology, the technical proposal
of the present invention has advantages as below:
[0014] 1. The U-shaped section and the front legs are not on a
line, the U-shaped section is migrated towards the rear legs, which
enlarges the distance of the seat back and the front end of the
seat base, so that the folding chair is provided with larger seat
area, thus improving the comfort.
[0015] 2. The distance between the fixation section and the seat
base is smaller than the distance of the fixation section and the
seat back, which effectively decreases the length of the front
legs. As the front legs are stressed more, it takes more material
in the manufactory, so that if the length of the front legs is
reduced, it saves the material, thus making the folding chair with
low manufactory cost.
[0016] 3. As U-shaped section is migrated towards the rear legs,
which enlarges the distance of the seat back and the front end of
the seat base, so that the folding chair is provided with larger
seat area, so that the angle of the front legs and the horizontal
plane can be designed larger than that in the existing technology,
so that the front legs can be stressed less, so that the diameter
of the front leg or the thickness of the pipe wall can be
decreased, thus reducing the material of the front legs, thus
making the folding chair with low manufactory cost.
[0017] 4. As the front legs have short length, so that they occupy
small space, thus making it convenient to transport. When doing
dusting, it can dust more front legs in one time, which improves
dusting effect and reduces manufactory cost. And the front legs and
the U-shaped pipe can be colored different.
[0018] 5. The diameters of the front leg, the first connection rod,
the second connection rod and the U-shaped section decrease in
order, thus reducing the material consumption of the U-shaped pipe
and saving the manufactory cost.
[0019] And as the diameter of the U-shaped section is smaller, the
U-shaped section is easier to be bended into different shape, the
bending radian is smaller.
[0020] 6. The first connection rod is inserted into the front leg,
so that it is convenient to assemble.
[0021] 7. The first connection rod abuts against the pivot ear, the
U-shaped pipe is migrated towards the rear legs, so that the
distance of the seat back and the front end of the seat base is
maximized, thus improving the sitting comfort.
[0022] 8. The sleeve connector is sleeved on the connection of the
front leg and the fixation section, so that the structure is
solid.
BRIEF DESCRIPTION OF THE DRAWINGS
[0023] The present invention will be further described with the
drawings and the embodiments.
[0024] FIG. 1 illustrates an exploded and schematic diagram of a
folding chair of a first embodiment of the present invention.
[0025] FIG. 2 illustrates a schematic diagram of the folding chair
of FIG. l.
[0026] FIG. 3 illustrates a side view of the folding chair of FIG.
1.
[0027] FIG. 4 illustrates an exploded and schematic diagram of a
folding chair of a second embodiment of the present invention.
DETAILED DESCRIPTION OF THE EMBODIMENTS
[0028] Please refer to FIG. 1, a folding chair of a first
embodiment of the present invention is provided, the folding chair
100 comprises a seat base 10, a seat back 20, two front legs 30,
two rear legs 40, a U-shaped pipe 50 and a sleeve connector 60.
[0029] The U-shaped pipe 50 is configured to fix the seat back 20.
The U-shaped pipe 50 comprises two fixation sections 52 and a
U-shaped section 54. Two fixation sections 52 are extended
outwardly inclinedly from the two ends of the opening of the
U-shaped section 54. The fixation sections 52 are used to fix to
the front legs 30. Each fixation section 52 comprises a first
connection rod 522 and a second connection rod 524. The second rod
524 is connected to the U-shaped section 54. The angle of the first
connection rod 522 and second connection rod is an obtuse angle.
The angle of the second connection rod 524 and the U-shaped section
54 is an obtuse angle.
[0030] A side of the upper end of each front leg is disposed with a
pivot ear 32.
[0031] The sleeve connector 60 is hollow pipe structure.
[0032] Please refer to FIG. 1 to FIG. 3, the seat back 20 is fixed
to the U-shaped section 54. the upper portions of the two rear legs
40 are respectively connected to the rear portions of the left and
right side edges of the seat base 10, the upper portions of the two
front legs 30 are respectively connected to the central portions of
the left and right side edges of the seat base 10. the upper ends
of the rear legs are rotatably pivot joint to the pivot ears 32 of
the front legs 30. the rear leg 40 and the front leg 30 form a
tri-angle shape. The sleeve connector 60 is sleeved on the upper
end of the front leg 30. the first connection rod 522 is inserted
into the front leg and fixedly connected to the front leg 30. the
sleeve connector 60 is sleeved on the connection portion of the
front leg 30 and the fixation section 52.
[0033] The U-shaped section 54 and the front leg 30 are not on a
line, the U-shaped section 54 is migrated towards the rear legs 40,
so that it enlarges the distance L between the seat back 20 and the
front end of the seat base 10, as figured in FIG. 3. so that the
seat area of the folding chair 100 is large enough that it provides
comfortable to the user.
[0034] The diameters of the front leg 30, the first connection rod
522, the second connection rod 524 and the U-shaped section
decreases in order.
[0035] The distance of the fixation section 52 and the seat base 10
is smaller than the distance of the fixation section 52 and the
seat back 20.
[0036] As figured in FIG. 4, disclosed is a second embodiment of
the present invention, the difference of the folding chair 100a of
this embodiment from the first embodiment is that: the first
connection rod 522 is not inserted into the front leg 30 but abuts
against the pivot ear 32. in other ways, the first connection rod
522 is welded to the pivot ear 32. and the sleeve connection 60a is
divided into two detachable symmetrical portions so as to be
sleeved on the connection portion of the front leg 30 and the
fixation section 52.
[0037] The first connection rod 522 is not inserted into the front
leg 30 but abuts against the pivot ear 32, so that it makes the
U-shaped section 54 migrated towards the rear legs 40, thus
maximizing the distance between the seat back 20 and the front end
of the seat base 10.
[0038] Although the present invention has been described with
reference to the preferred embodiments thereof for carrying out the
patent for invention, it is apparent to those skilled in the art
that a variety of modifications and changes may be made without
departing from the scope of the patent for invention which is
intended to be defined by the appended claims.
INDUSTRIAL APPLICABILITY
[0039] The present invention is provided with a folding chair that
the front section of the front leg and the seat back are not on a
line, the connection section of the seat back is migrate towards
the rear legs, which enlarges the distance of the seat back and the
front end of the seat base, so that the folding chair is provided
with larger seat area, thus making it with comfort.
* * * * *