U.S. patent application number 12/444738 was filed with the patent office on 2010-07-29 for folding table with crossed legs.
Invention is credited to Luhao Leng.
Application Number | 20100186640 12/444738 |
Document ID | / |
Family ID | 36140185 |
Filed Date | 2010-07-29 |
United States Patent
Application |
20100186640 |
Kind Code |
A1 |
Leng; Luhao |
July 29, 2010 |
FOLDING TABLE WITH CROSSED LEGS
Abstract
A folding table with crossed legs is provided. The table
comprises a tabletop board, first leg shelf and second leg shelf.
The two leg shelves support the tabletop board under the tabletop
board. The two leg shelves also cross and pivot with each other at
their central locations. The top of the first leg shelf is pivoted
on the one side of the undersurface of the tabletop board. A
fastening device is fixed on the other side of the undersurface of
the tabletop board. A transverse supporting rod is fixed on the top
of the second leg shelf. The transverse supporting rod is fastened
on the undersurface of the tabletop board by the fastening device.
The top of the second leg shelf is not directly fixed on the
undersurface of the tabletop board. When the table is unfolded, the
undersurface of the tabletop board and the transverse supporting
rod are fixed oppositely by the fastening device. When the table is
folded, the transverse supporting rod is disengaged from the
fastening device.
Inventors: |
Leng; Luhao; (Fujian,
CN) |
Correspondence
Address: |
RABIN & Berdo, PC
1101 14TH STREET, NW, SUITE 500
WASHINGTON
DC
20005
US
|
Family ID: |
36140185 |
Appl. No.: |
12/444738 |
Filed: |
January 17, 2006 |
PCT Filed: |
January 17, 2006 |
PCT NO: |
PCT/CN2006/000070 |
371 Date: |
April 8, 2009 |
Current U.S.
Class: |
108/119 |
Current CPC
Class: |
A47B 3/02 20130101 |
Class at
Publication: |
108/119 |
International
Class: |
A47B 3/02 20060101
A47B003/02 |
Foreign Application Data
Date |
Code |
Application Number |
Jan 17, 2005 |
CN |
200520080207.0 |
Claims
1. A folding table with cross legs comprises a table top, a first
table-leg bracket, a second table-leg bracket; the first and the
second table-leg brackets are fixed under the table top as
supporting frames, parts of both brackets are intercrossed and
inter-jointed; the features include: the top of the first table-leg
bracket is fixed on one side of the bottom of the table top, on the
other side, a fastening device is equipped; on the top of the
second table-leg bracket, a lateral supporting bar is set, which
may be fixed under the bottom of the table top by the fastening
device, and the top of the second table-leg bracket is not directly
fixed to the bottom of the table top; As the folding table is
unfolded, the fastening device at the bottom of the table top helps
parallelly fix the lateral supporting bar to the bottom of the
table top. As the folding table is folded, the fastening device at
the bottom of the table top detaches from the lateral supporting
bar at the top of the second table-leg bracket.
2. As described in claim 1, a folding table with crossed legs,
whose features are: the aforementioned table top is a plastic
composite board, reinforcing bars are buried within corners of its
bottom to form a frame, and a located groove is set on the side of
the frame where a fastening device is equipped,
3. As described in claim 1, a folding table with crossed legs,
whose features are: the structure of the aforementioned fastening
device includes: a clamping holder set at the bottom of the table
top and a clamping piece; one end of the clamping piece is
connected to the bottom of the table top by a connecting axis,
where a spring is set to press the moving end of the clamping piece
to the aforementioned clamping holder from bottom to top; the
aforementioned lateral supporting bar may be pressed to and locked
in the clamping holder, meanwhile, in the corresponding position of
the table top, a reinforcing board is buried.
4. As described in claim 3, a folding table with crossed legs,
whose feature is: a spanner is fixed at the one end of the
connecting axis of the clamping piece.
5. As described in claim 3, a folding table with crossed legs,
whose features are: two downwardly-projected connecting parts are
formed at the bottom of the table top, the connecting axis of the
aforementioned clamping piece is laid in between, and the
aforementioned spring is set in the part of the connecting axis,
which is located between two connecting parts; one of the extended
end of the spring reaches the bottom of the table top, while the
other end forms a hook, which is buckled from bottom to top into a
catching groove set at the bottom of the clamping piece.
6. As described in claim 1, a folding table with crossed legs,
whose features are: the structure of the aforementioned fastening
device includes a fixing block, one end of which is connected to
the bottom of the table top; on its connecting axis, a spring is
fixed, which can press the moving end of the fixing block to the
bottom of the table top, a fixing groove is set on one side of the
fixing block, which faces the bottom of the table top, the
aforementioned supporting bar is fixed between the fixing groove of
the fixing block and the bottom of the table top.
7. As described in claim 6, a folding table with crossed legs,
whose feature is: a spanner is fixed at the one end of the
connecting axis of the fixing block.
8. As described in claim 6, a folding table with crossed legs,
whose feature is: an inclined plane is formed at one side of the
aforementioned block's moving end, the side which is close to the
bottom of the table top.
9. As described in claim 6, a folding table with crossed legs,
whose features are: two downwardly-projected connecting parts are
formed at the bottom of the table top, the connecting axis of the
aforementioned fixing block is laid in between, and the
aforementioned spring is set in one part of the connecting axis,
the part which is located between two connecting parts; one of the
extending end of the spring is touched the bottom of the table top,
while the other end forming a hook, which is buckled from bottom to
top into a catching groove set at the bottom of the fixing
block.
10. As described in claim 1, a folding table with crossed legs,
whose features are: the aforementioned first table-leg bracket
comprises two table legs and a reinforcing bar fixed between the
lower parts of both legs for connection, the bottom edges of the
table top are extended downwardly to form a frame, one of whose
sides is stretched inwardly to form two connecting parts, to which
the tops of the aforementioned two legs are jointed respectively; a
second table-leg bracket comprises two table legs and a reinforcing
bar fixed between the lower parts of both legs for connection, the
aforementioned lateral supporting bar is fixed between the tops of
both legs for connection.
11. As described in claim 1, a folding table with crossed legs,
whose features are: the shape of the aforementioned table top may
be among rounds, squares, and rectangles; the table top is a
composite structure, whose outer layer is a plastic-suction board
while reinforcing bars are buried inside and honeycomb paper cores
are stuffed in the rest parts.
12. As described in claim 1, a folding table with crossed legs,
whose features are: the width of the aforementioned second
table-leg bracket is less than that of the aforementioned first
table-leg bracket, and the second table-leg bracket is equipped on
the inner side of the first table-leg bracket.
13. As described in claim 2, a folding table with crossed legs,
whose features are: the structure of the aforementioned fastening
device includes: a clamping holder set at the bottom of the table
top and a clamping piece; one end of the clamping piece is
connected to the bottom of the table top by a connecting axis,
where a spring is set to press the moving end of the clamping piece
to the aforementioned clamping holder from bottom to top; the
aforementioned lateral supporting bar may be pressed to and locked
in the clamping holder, meanwhile, in the corresponding position of
the table top, a reinforcing board is buried.
14. As described in claim 13, a folding table with crossed legs,
whose feature is: a spanner is fixed at the one end of the
connecting axis of the clamping piece.
15. As described in claim 13, a folding table with crossed legs,
whose features are: two downwardly-projected connecting parts are
formed at the bottom of the table top, the connecting axis of the
aforementioned clamping piece is laid in between, and the
aforementioned spring is set in the part of the connecting axis,
which is located between two connecting parts; one of the extended
end of the spring reaches the bottom of the table top, while the
other end forms a hook, which is buckled from bottom to top into a
catching groove set at the bottom of the clamping piece.
16. As described in claim 2, a folding table with crossed legs,
whose features are: the structure of the aforementioned fastening
device includes a fixing block, one end of which is connected to
the bottom of the table top; on its connecting axis, a spring is
fixed, which can press the moving end of the fixing block to the
bottom of the table top, a fixing groove is set on one side of the
fixing block, which faces the bottom of the table top, the
aforementioned supporting bar is fixed between the fixing groove of
the fixing block and the bottom of the table top.
17. As described in claim 16, a folding table with crossed legs,
whose feature is: a spanner is fixed at the one end of the
connecting axis of the fixing block.
18. As described in claim 16, a folding table with crossed legs,
whose feature is: an inclined plane is formed at one side of the
aforementioned block's moving end, the side which is close to the
bottom of the table top.
19. As described in claim 16, a folding table with crossed legs,
whose features are: two downwardly-projected connecting parts are
formed at the bottom of the table top, the connecting axis of the
aforementioned fixing block is laid in between, and the
aforementioned spring is set in one part of the connecting axis,
the part which is located between two connecting parts; one of the
extending end of the spring is touched the bottom of the table top,
while the other end forming a hook, which is buckled from bottom to
top into a catching groove set at the bottom of the fixing block.
Description
FIELD OF THE INVENTION
[0001] The invention concerns a folding table, specifically a
folding table with crossed legs, which is stable in structure and
easily folded.
BACKGROUND OF TECHNIQUES
[0002] Folding tables are frequently used on many occasions, like
in offices or at homes. In offices, they can be employed for
placement of some commonly-used small items, or as tea-tables, or
for temporary placement of manuscripts, drawings and charts, pens,
etc during discussions; at homes, they can be employed as work or
study tables, or for placements of some daily-used small items.
Therefore, as a conclusion, folding tables should be designed as
small and handy, easily-folded and stored and easily-moved.
[0003] In order to save space while not being used, ordinary
folding tables adopt crossed-leg structures, which mainly include
two types: 1) table legs are fixed straightly on both sides of the
bottom of table top by two table-leg brackets, which can be folded
to the center of the table top and placed under the table top; 2)
the table-leg bracket consists of intercrossed table legs, forming
a foldable structure. In term of folding procedure, the
aforementioned first structure is obviously less easy than the
second one which is thus particularly suitable for temporary
personal use.
[0004] Among the current folding structures of folding tables with
crossed legs, since the top of intercrossed table-leg brackets are
fixed to the bottom of table top, the brackets can only rotate
relative to the table top but not move away from the top.
Therefore, in order to be foldable, one of the brackets should be
divided into two foldable parts, and a locking device should be
fixed at the fold, so that it can lock the folding structure to be
unfolded. These are some disadvantages concerning the
aforementioned structures: 1) since one brackets is divided into
two foldable parts, despite of the locking device for fixation, the
stability of the table leg are greatly reduced when the bracket is
unfolded; 2) some folding disorders easily appears at the fold of
the table-leg bracket; 3) the folding procedure is not
convenient.
DESCRIPTION OF THE INVENTION
[0005] The invention presents a folding table with crossed legs.
The main purpose of the invention is to overcome the disadvantages
of current folding tables with crossed legs, which include:
instability of table-leg brackets, inconvenient folding procedure,
and easily-occurred folding disorders at folds.
[0006] Following techniques are adopted: a folding table with
crossed legs, which comprises: a table top, a first table-leg
bracket, a second table-leg bracket; the first and the second
table-leg brackets are fixed under the table top as supporting
frames, parts of both brackets are intercrossed and inter-jointed;
the top of the first table-leg bracket is fixed on one side of the
bottom of the table top, on the other side, a fastening device is
equipped; on the top of the second table-leg bracket, a lateral
supporting bar is set, which may be fixed under the bottom of the
table top by the fastening device, and the top of the second
table-leg bracket is not directly fixed to the bottom of the table
top.
[0007] As the folding table is unfolded, the fastening device at
the bottom of the table top helps parallelly fix the lateral
supporting bar to the bottom of the table top.
[0008] As the folding table is folded, the fastening device at the
bottom of the table top detaches from the lateral supporting bar at
the top of the second table-leg bracket.
[0009] The aforementioned table top is a plastic composite board,
reinforcing bars are buried within corners of its bottom to form a
frame, and a located groove is set on the side of the frame where
the fastening device is equipped.
[0010] The structure of the aforementioned fastening device
includes: a clamping holder set at the bottom of the table top and
a clamping piece; one end of the clamping piece is connected to the
bottom of the table top by a connecting axis, where a spring is set
to press the moving end of the clamping piece to the aforementioned
clamping holder from bottom to top; the aforementioned lateral
supporting bar may be pressed to and locked in the clamping holder,
meanwhile, in the corresponding position of the table top, a
reinforcing board is buried.
[0011] A spanner is fixed at the one end of the connecting axis of
the clamping piece.
[0012] Two downwardly-projected connecting parts are formed at the
bottom of the table top, the connecting axis of the aforementioned
clamping piece is laid in between, and the aforementioned spring is
set in the part of the connecting axis, which is located between
two connecting parts; one of the extended end of the spring reaches
the bottom of the table top, while the other end forms a hook,
which is buckled from bottom to top into a catching groove set at
the bottom of the clamping piece.
[0013] The structure of the aforementioned fastening device may
also include: a fixing block, one end of which is connected to the
bottom of the table top; on its connecting axis, a spring is fixed,
which can press the moving end of the fixing block to the bottom of
the table top, a fixing groove is set on one side of the fixing
block, which faces the bottom of the table top, the aforementioned
supporting bar is fixed between the fixing groove of the fixing
block and the bottom of the table top.
[0014] A spanner is fixed at the one end of the connecting axis of
the fixing block.
[0015] An inclined plane is formed at one side of the
aforementioned block's moving end, the side which is close to the
bottom of the table top.
[0016] Two downwardly-projected connecting parts are formed at the
bottom of the table top, the connecting axis of the aforementioned
fixing block is laid in between, and the aforementioned spring is
set in one part of the connecting axis, the part which is located
between two connecting parts; one of the extending end of the
spring is touched the bottom of the table top, while the other end
forming a hook, which is buckled from bottom to top into a catching
groove set at the bottom of the fixing block.
[0017] The aforementioned first table-leg bracket comprises two
table legs and a reinforcing bar fixed between the lower parts of
both legs for connection, the bottom edges of the table top are
extended downwardly to form a frame, one of whose sides is
stretched inwardly to form two connecting parts, to which the tops
of the aforementioned two legs are jointed respectively; a second
table-leg bracket comprises two table legs and a reinforcing bar
fixed between the lower parts of both legs for connection, the
aforementioned lateral supporting bar is fixed between the tops of
both legs for connection.
[0018] The shape of the aforementioned table top may be among
rounds, squares, and rectangles; the table top is a composite
structure, whose outer layer is a plastic-suction board while
reinforcing bars are buried inside and honeycomb paper cores are
stuffed in the rest parts.
[0019] The width of the aforementioned second table-leg bracket is
less than that of the aforementioned first table-leg bracket, and
the second table-leg bracket is equipped at the inner side of the
first table-leg bracket.
[0020] It could be concluded from the aforementioned descriptions
that, comparing with current techniques, the invention has
following advantages: 1) unlike conventional table-leg brackets
which comprise two foldable parts, both table-leg brackets are as
integral forms, firm and steady, thus the folding table is more
stably supported; 2) the folding procedure of table-leg brackets is
realized by detachment of the top of one table-leg bracket from the
bottom of the table top, so that the process is easier and more
smooth, and free from folding disorders; 3) since the table top
adopts the plastic composite structure, and has reinforcing bars
buried inside, the strength of the table top is increased, besides,
it makes a simpler structure by integrating connecting parts and
other structures with the bottom plate of the table top.
BRIEF DESCRIPTION OF THE ATTACHED DRAWINGS
[0021] FIG. 1 is an upward view showing the folding status of
Implement Example 1 of the invention.
[0022] FIG. 2 is a side view showing the unfolding status of
Implement Example 1 of the invention.
[0023] FIG. 3 is a partial enlarged view showing Part A in FIG.
1.
[0024] FIG. 4 is a partial enlarged view showing Part B in FIG. 2,
i.e. a partial longitudinal profile of the buckle device in
Implement Example 1.
[0025] FIG. 5 is an upward view showing the folding status of
concrete implement Example 2 of the invention.
[0026] FIG. 6 is a partial longitudinal profile of the buckle
device in Implement Example 2.
IMPLEMENT EXAMPLES
[0027] As shown from FIG. 1 to FIG. 4, the detailed description of
the Implement Example 1 is as follow: the folding table with
crossed legs in the Example comprises a table top 1, a first
table-leg bracket 2 and a second table-leg bracket 3; bracket 2 and
3 are fixed at the bottom of table top for support, parts of both
brackets are intercrossed and interconnected. The table top takes
an approximately square-like shape; the outer layer of table top 1
is a plastic-suction board 15 and its core is the honeycomb paper
core 16, a reinforcing pipe-fitting 14 is equipped on the lower
parts of its edge and covered and fixed by plastic-suction board
15, so that the edges of table top 1 are extended downwardly to
form a edge frame 10, two parallel edges of which are stretched
inwardly to form two connecting parts 11 & 12. The first
table-leg bracket comprises two table legs 21 & 22, and the
reinforcing bar 23 fixed between the lower parts of both legs for
connection. The tops of both legs 21 & 22 are jointed
respectively to the connecting parts 11 & 12.
[0028] At the bottom of table top 1, two downwardly-projected
connecting parts 101& 102 are formed on another side. A
clamping piece 4 is fixed between the connecting parts 101 &
102 through a connecting axis 41; a spring is fixed on one part of
the axis which is laid between the connecting parts 101 & 102.
One extended end 51 of the spring 5 reaches the bottom of table top
1, while the other end 52 forms a hook, which is buckled from
bottom to top into a catching groove 40 set at the bottom of the
clamping piece 4. Thus the spring can press the clamping piece 4
tightly to table top 1; meanwhile, in the corresponding position of
the table top, a reinforcing board 17 is buried to enhance the
strength of the bottom board.
[0029] A clamping holder 44 is set at the bottom of the table top,
whose mouth faces downwardly, the clamping piece 4 touches
alongside the bottom of the neck 44 form bottom to top; the second
table-leg bracket 3 comprises two table legs 31 & 32 and a
reinforcing bar 33 fixed between the lower parts of both legs for
connection, a lateral supporting bar 34 is fixed between the tops
of both legs, which can also be laid within the aforementioned neck
44 and pressed by the clamping piece 4 to be fixed at the bottom of
table top 1. As the supporting bar 34 is pressed to and fixed
within the neck 44 by the clamping piece 4 at the bottom of table
top 1, the first table-leg bracket 2 and the second table-leg
bracket 3 can steadily support the table top 1 levelly to reach
certain height, as shown in FIG. 2.
[0030] A spanner 42 is fixed at the one extended end of the
connecting axis 41 of the clamping piece 4, through which the
connecting axis can rotate to press the moving end of the clamping
piece 4 downwardly, so that the lateral supporting bar 34 of the
second table-leg bracket 3 can be detached from clamping holder 44;
the first table-leg bracket 2 may roll directly downwardly to the
bottom of the table top, which drives the top of the second
table-leg bracket 3 to roll upwardly to the bottom of the table
top; the legs are extended out through located groove 13 fixed on
the edge frame 10, and folded as the status shown in FIG. 1. It is
can be concluded that the two table-leg brackets 2 & 3
themselves are as integral forms, which are not foldable, so that
them can give firm and steady supports, while the folding procedure
is realized by detachment of lateral supporting bar 34 on top of
the second table-leg bracket 3 from the bottom of the table top 1,
so that folding disorders are unlikely to appear.
[0031] As shown in FIGS. 5 & 6, the folding table with crossed
legs in the Implement Example 2 comprises a table top 1, a first
table-leg bracket 2 and a second table-leg bracket 3; bracket 2 and
3 are fixed at the bottom of table top 1 for support, parts of both
brackets are intercrossed and interconnected. The table top takes
an round shape; the outer layer of the table top 1 is a
plastic-suction board 15 and its core is the honeycomb paper core
16, a reinforcing pipe-fitting 14 is equipped on the lower parts of
its edge and covered and fixed by plastic-suction board 15, so that
the edges of the table top 1 are extended downwardly to form a edge
frame 10, two parallel edges of which are stretched inwardly to
form two connecting parts 11 & 12. The first table-leg bracket
comprises two table legs 21 & 22, and the reinforcing bar 23
fixed between the lower parts of both legs for connection. The tops
of both legs 21 & 22 are jointed respectively to the connecting
parts 11 & 12.
[0032] At the bottom of table top 1, two downwardly-projected
connecting parts 101& 102 are formed on another side while a
reinforcing board 17 is buried within the bottom of the table top;
a fixing block 6 is fixed between the connecting parts 101 &
102 through a connecting axis 41, a spring is fixed on one part of
the axis which is laid between the connecting parts 101 & 102.
One extended end 51 of the spring 5 reaches the bottom of table top
1, while the other end 52 forms a hook, which is buckled from
bottom to top into a catching groove 60 set at the bottom of the
fixing block 6. Thus the spring can press the fixing block 6 to the
bottom of table top 1; meanwhile, since a reinforcing board 17 is
buried at its bottom, the strength of the table top 1 is
enhanced.
[0033] A fixing groove 65 is set on the side of the fixing block 6,
which faces the bottom of the table top 1; the second table-leg
bracket 3 comprises two table legs 31 & 32 and a reinforcing
bar 33 fixed between the lower parts of both legs for connection, a
lateral supporting bar 34 is fixed between the tops of both legs,
which can also be laid within the aforementioned fixing groove 65
of the blocking block 6, and fixed at the bottom of the table top
1. As the supporting bar 34 is pressed to and fixed at the bottom
of the table top 1 by the fixing groove 65 of the fixing block 6,
the first table-leg bracket 2 and the second table-leg bracket 3
can steadily support the table top 1 levelly to reach certain
height, as shown in FIG. 2.
[0034] A spanner 42 is fixed at the one extended end of the
connecting axis 41 of the fixing block 6, through which the
connecting axis can rotate to press the moving end of the fixing
block 6 downwardly, so that the lateral supporting bar 34 of the
second table-leg bracket 3 can be detached from the fixing groove
65 of the fixing block 6, thus a folded status as shown in FIG. 1
is formed. It is can be concluded that the two table-leg brackets 2
& 3 themselves are as integral forms, which are not foldable,
so that them can give firm and steady supports, while the folding
procedure is realized by detachment of lateral supporting bar 34 on
top of the second table-leg bracket 3 from the bottom of the table
top 1, so that folding disorders are unlikely to appear.
[0035] The moving end of the aforementioned fixing block 6 touches
one side of the bottom of the table top 1 to form a inclined plane
63, which facilitates the attachment and detachment of the lateral
supporting bar to or from the fixing groove 65 of the fixing block
6, so that the folding procedure becomes more smooth. What are
presented above are only two concrete implement examples, not
covering the whole design and conception, any unessential
alterations or modifications to the invention by adopting the
conception should be defined as violations against protection
scopes of the invention.
INDUSTRIAL APPLICABILITY
[0036] This invention relates to a folding table with crossed legs,
the structure of which is simple, while the fixing procedure is
easy, thus it is convenient for use. The manufacture of each
accessories and components can meet the demand of mass industrial
production, thus is of high industrial applicability.
* * * * *