U.S. patent application number 11/903776 was filed with the patent office on 2009-03-26 for multi-function worktable.
Invention is credited to Yi-Chun Tseng.
Application Number | 20090078165 11/903776 |
Document ID | / |
Family ID | 40470302 |
Filed Date | 2009-03-26 |
United States Patent
Application |
20090078165 |
Kind Code |
A1 |
Tseng; Yi-Chun |
March 26, 2009 |
Multi-function worktable
Abstract
A multi-function worktable comprises a bottom plate including
two cylindrical members disposed at two sides thereof and having
through grooves formed therein, and four leg assemblies affixed to
the front and rear ends of the two cylindrical members individually
for extension and extraction, an overturning mechanism fixed
between the two cylindrical members for using the top plate in
different modes, wherein the overturning mechanism includes two
opposite guide slots formed in the two cylindrical members, and the
top plate includes two rollers mounted on two sides thereof where
correspond to one ends of the guide slots respectively, such that
as moving the top plate upward, the two rollers may rollingly move
frontward and backward along the two guide slots so as to change
the top plate in different use modes.
Inventors: |
Tseng; Yi-Chun; (Taichung,
TW) |
Correspondence
Address: |
PRO-TECHTOR INTERNATIONAL SERVICES
20775 NORADA CT.
SARATOGA
CA
95070
US
|
Family ID: |
40470302 |
Appl. No.: |
11/903776 |
Filed: |
September 24, 2007 |
Current U.S.
Class: |
108/6 |
Current CPC
Class: |
A47B 3/0912 20130101;
E04G 1/30 20130101; B25H 1/14 20130101; E04G 1/32 20130101; E04G
1/15 20130101; E04G 1/34 20130101; B25H 1/04 20130101; E04G
2001/302 20130101 |
Class at
Publication: |
108/6 |
International
Class: |
A47F 5/12 20060101
A47F005/12 |
Claims
1. A multi-function worktable comprising: a bottom plate; two
cylindrical members mounted onto the two sides of said bottom
plate, and including through grooves formed therethrough and guide
slots formed therein; leg assemblies inserted in through grooves of
the front and rear ends of said cylindrical members; top plate
mounted between said two cylindrical members, and including two
rollers disposed on two sides thereof where correspond to said
guide slots respectively for moving therein so as to be used in
different modes.
2. The multi-function worktable as claimed in claim 1, wherein said
bottom plate includes a plurality of elongated stems for supporting
said top plate thereon, at the front and rear sides of which are
provided with shoulders respectively, at the lower side of which is
disposed a drawer for placing objects therein.
3. The multi-function worktable as claimed in claim 1, wherein said
cylindrical members include screw holes for communication with said
through grooves arranged on the front and rear end portions thereof
for screwing with bolts individually, and four legs of four leg
assemblies include coupling portions extendedly secured on one ends
thereof for being inserted into said through grooves respectively
and having annular indentions for corresponding to and confining
said bolts formed thereon.
4. The multi-function worktable as claimed in claim 1, wherein said
legs further include extensions disposed therein for adjusting
their lengths individually.
5. The multi-function worktable as claimed in claim 1, wherein
between said four leg assemblies and said bottom plate are defined
with retractable connecting rod assemblies.
6. The multi-function worktable as claimed in claim 1, wherein
between said leg assemblies are couplingly provided with brackets
respectively.
7. The multi-function worktable as claimed in claim 1, wherein said
top plate includes grips arranged on the front and rear sides
thereof respectively for user's holding.
8. The multi-function worktable as claimed in claim 1, wherein said
top plate includes a plane formed on the top surface thereof and
having receiving compartments provided thereon for use in a
workbench mode, and the bottom surface of said top plate is
constructed in the form of antislip patterns for use in a scaffold
mode.
9. The multi-function worktable as claimed in claim 1 further
comprising a positioning mechanism provided between said top plate
and said two cylindrical members.
10. The multi-function worktable as claimed in claim 9, wherein
said positioning mechanism includes engaging pieces for extending
or retracting, and said two cylindrical members include fixing
recesses secured on predetermined positions thereof where
correspond to said engaging pieces for positioning said top plate.
Description
BACKGROUND OF THE INVENTION
[0001] 1. Field of the Invention
[0002] The present invention relates to a multi-function worktable
that may easily overturn the top plate for changing the use mode by
way of an overturning mechanism.
[0003] 2. Description of the Prior Arts
[0004] As illustrated in FIG. 1, a prior art multi-function
worktable 10 comprises a table plate 11 including two side surfaces
for use in different modes. The table plate 11 includes a top
surface in the form of a plane provided thereon and having
receiving compartments 111 mounted thereon for placing tools or
parts in a workbench mode, and includes a net-shaped pedal arranged
on the bottom surface thereof for the user's stepping thereon in a
scaffold mode. The table plate 11 further includes coupling
portions 12 attached on two sides thereof and having positioning
devices 121 fixed therein respectively. The coupling portions 12
includes leg supports 13 axially secured on the two ends thereof
individually for using the positioning devices 121 of the coupling
portions 12 to control the rotations and positions of the leg
supports 13. In addition, the leg supports 13 are connected to the
table plate 11 by way of the connecting rod assemblies 14, so that
the leg supports 13 may stably support the table plate 11.
Referring to FIGS. 2 and 3, as changing the worktable 10 from a
workbench mode to a scaffold mode, the connecting rod assemblies 14
are disengaged from one ends of the leg supports 13 individually,
and the positioning devices 121 of the connecting rod assemblies 14
are released so as to rotate the leg supports 13 toward another
sides. After they are pivotally rotated to proper angles, the
positioning devices 121 of the coupling portions 12 are changed for
fixing the leg supports 13, and then the connecting rod assemblies
14 are coupled to the leg supports 13 individually, thereby
overturning the worktable 10 for use in a scaffold mode.
[0005] Nevertheless, such a prior art worktable 10 still has the
following disadvantages:
[0006] 1. Because during the changing operation of the use mode,
the connecting rod assemblies 14 have to be disengaged from one
ends of the leg supports 13, and then the leg supports 13 are
axially rotated to proper angles and positioned individually.
Thereafter, the connecting rod assemblies 14 are joined to the leg
supports 13 again, causing a tedious changing operation.
[0007] 2. Furthermore, as axially rotating the leg supports 13 and
overturning the worktable 10, the user has to finish the
mode-changing operation by himself, resulting in a difficult and
labor consuming operation.
[0008] The present invention has arisen to mitigate and/or obviate
the afore-described disadvantages.
SUMMARY OF THE INVENTION
[0009] The primary object of the present invention is to provide a
multi-function worktable that may easily overturn the top plate for
changing the use mode.
[0010] Another object of the present invention is to provide a
multi-function worktable that may overturn the top plate with
saving labor by using an overturning mechanism.
[0011] In accordance with one aspect of the present invention,
there is provided a multi-function worktable comprising a bottom
plate including two cylindrical members disposed at two sides
thereof and having through grooves formed therein, and four leg
assemblies affixed to the front and rear ends of the two
cylindrical members individually for extension and extraction, an
overturning mechanism being fixed between the two cylindrical
members for using the top plate in different modes, wherein the
overturning mechanism includes two opposite guide slots formed in
the two cylindrical members, and the top plate includes two rollers
mounted on two sides thereof where correspond to one ends of the
guide slots respectively, such that as moving the top plate upward,
the two rollers may rollingly move frontward and backward along the
two guide slots so as to change the top plate in different use
modes.
[0012] The present invention will become more obvious from the
following description when taken in connection with the
accompanying drawings, which show, for purpose of illustrations
only, the preferred embodiment in accordance with the present
invention.
BRIEF DESCRIPTION OF THE DRAWINGS
[0013] FIG. 1 is a perspective diagram illustrating the assembly of
a prior art multi-function worktable;
[0014] FIG. 2 is a perspective diagram illustrating the changing
operation of the use mode of the prior art multi-function
worktable;
[0015] FIG. 3 is a perspective diagram illustrating the prior art
multi-function worktable being in a scaffold mode;
[0016] FIG. 4 is a perspective diagram illustrating the exploded
components of a multi-function worktable according to the present
invention;
[0017] FIG. 5 is a perspective diagram illustrating the assembly of
the multi-function worktable according to the present
invention;
[0018] FIG. 6 is a cross sectional diagram illustrating the
assembly of the multi-function worktable according to the present
invention;
[0019] FIG. 7 is a perspective diagram illustrating the changing
operation of the use mode of the multi-function worktable according
to the present invention;
[0020] FIG. 8 is a partial cross sectional diagram according to
FIG. 7;
[0021] FIG. 9 is another perspective diagram illustrating the
changing operation of the use mode of the multi-function worktable
according to the present invention;
[0022] FIG. 10 is also another perspective diagram illustrating the
changing operation of the use mode of the multi-function worktable
according to the present invention;
[0023] FIG. 11 is a perspective diagram illustrating the
multi-function worktable of the present invention being in a
scaffold mode;
[0024] FIG. 12 is a perspective diagram illustrating the leg
assemblies of the multi-function worktable of the present invention
being extended.
[0025] FIG. 13 is a perspective diagram illustrating the
multi-function worktable of the present invention being in a
storage mode.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
[0026] Referring to FIGS. 4-6, a multi-function worktable in
accordance with the present invention comprises a bottom plate 20,
two cylindrical members 21, 22, four leg assemblies 23, 24, 25, 26,
and a top plate 27, the bottom plate 20 including a plurality of
elongated stems 201 for supporting the top plate 27 thereon, at the
front and rear sides of which are provided with shoulders 202
respectively, at the lower side of which is disposed a drawer 203
for placing objects therein. The two cylindrical members 21 and 22
are mounted onto the right and left sides of the bottom plate 20,
and include through grooves 211, 221 formed therethrough, and
include screw holes for communication with the through grooves 211,
221 arranged on the front and rear end portions thereof for
screwing with bolts 212, 222 individually. Four legs 231, 241, 251,
261 of four leg assemblies 23, 24, 25, 26 are affixed to the front
and rear ends of the two cylindrical members 21 and 22
individually, and include coupling portions 232, 242, 252, 262
extendedly secured on one ends thereof for being inserted into the
through grooves 211 and 221 respectively and having annular
indentions 233, 243, 253, 263 for corresponding to and confining
the bolts 212, 222 formed thereon so that the legs 231, 241, 251,
261 may be affixed to the front and rear ends of the two
cylindrical members 21, 22, and may be rotatable for extension and
storage. The legs 231, 241, 251, 261 further include extensions
234, 244, 254, 264 disposed therein for adjusting their lengths
individually, hence the height of the leg assemblies 23, 24, 25, 26
may be adjustable. Furthermore, between the four leg assemblies 23,
24, 25, 26 and the bottom plate 20 are defined with retractable
connecting rod assemblies 235, 245, 255, 265, one ends of which
couple with the legs 231, 241, 251, 261, and another ends of which
connect with the shoulders 202 of the bottom plate 20 such that the
leg assemblies 23, 24, 25, 26 allow to securely support the bottom
plate 20 and to be retractably stored. Besides, the left leg
assemblies 23, 24 and the right leg assemblies 25, 26 couple with
the brackets 236, 256 individually so that the leg assemblies 23,
24, 25, 26 may supplementally support the bottom plate 20. A top
plate 27 is mounted between the two cylindrical members 21 and 22,
and includes grips 271 arranged on the front and rear sides thereof
respectively, and includes a plane formed on the top surface
thereof and having receiving compartments 272 provided thereon for
placing tools or parts in a workbench mode. On the other hand, the
bottom surface of the top plate 27 is constructed in the form of
antislip patterns so that the user may step thereon safely while in
a scaffold mode. Additionally, between the top plate 27 and the two
cylindrical members 21, 22 is defined with an overturning mechanism
including two opposite guide slots 213, 223 formed in the two
cylindrical members 21, 22, and the top plate 27 includes two
rollers 274, 275 mounted on two sides thereof where correspond to
one ends of the guide slots 213, 223 respectively such that as the
grip 271 is held to push the top plate 27 upwardly, the two rollers
274, 275 move forwardly and backwardly, and between the top plate
27 and the two cylindrical members 21, 22 is provided with a
positioning mechanism including engaging pieces 276, 277, 278, 279
for engaging or disengaging the top plate 27, and the two
cylindrical members 21, 22 include fixing recesses 224, 225 secured
on predetermined positions thereof where correspond to the engaging
pieces 276, 277, and the cylindrical members 21, 22 include another
fixing recesses 215, 225 fixed on the predetermined positions
thereof where correspond to the engaging pieces 278, 279 after
overturning the top plate 27, and as the engaging pieces 276, 277
extend to engage with the fixing recesses 214, 224 or as the
engaging pieces 278, 279 extend to engage with the fixing recesses
215, 225, the top plate 27 is positioned for preventing its
shocking, and while controlling the engaging pieces 276, 277, 278,
279 to retract inward, the positioned top plate 27 is released for
being overturned.
[0027] With reference to FIGS. 7 and 8, by using the overturning
mechanism between the two cylindrical members 21, 22 and the top
plate 27, the top plate 27 permits to be overturned directly for
changing use mode. For example, as changing a workbench mode to a
scaffold mode, the top plate 27 is disengaged from the positioning
mechanism of the two cylindrical members 21, 22, and then pushed
upward by holding the grip 271 so as to axially rotate the top
plate 27 upward by using the two rollers 274, 275 as its fulcrum.
As illustrated in FIG. 9, after the top plate 27 is rotated upward,
it may be pushed toward another side along the guide slots 213, 223
by way of the rollers 274, 275. Further referring to FIG. 10, as
the rollers 274, 275 of the top plate 27 displaces to another side,
the top plate 27 may be further moved downward by using the rollers
274, 275 as its rotating fulcrum. As shown in FIG. 11, as the top
plate 27 is pushed to the lateral position, its bottom surface with
the antislip patterns faces upward, and then the positioning
mechanism is utilized to secure the top plate 27, thus finishing
the change of the use mode.
[0028] With reference to FIG. 12, the extensions 234, 244, 254, and
264 of the legs 231, 241, 251, and 261 may be adjustable to raise
the top plate 27, thereby providing the user to work at a higher
position.
[0029] As illustrated in FIG. 13, as desiring to store the
worktable, the leg assemblies 23, 24, 25, 26 have to be retracted
to the lateral positions of the sides of the top plate 27, thus
finishing the storage.
[0030] The invention is not limited to the above embodiment but
various modifications thereof may be made. It will be understood by
those skilled in the art that various changes in form and detail
may made without departing from the scope and spirit of the present
invention.
* * * * *