Folding Desk
A folding desk made of plastic composite plates includes a desk face plate, a left side plate, a right side plate and a front baffle. The left side plate and the right side plate are linkable rotationally to a left side and a right side of the desk face plate respectively. The front baffle is linkable rotationally to a lower side of the desk face plate. Position restricting and locking mechanisms are located at connecting positions between the left side of the front baffle and the left side plate or/and between the right side of the front baffle and the right side plate, and position restricting and locking mechanisms stabilize the desk when open. The desk face plate, the left side plate, the right side plate and the front baffle are at least partially plastic composite plates.
The present invention relates to a desk, especially to a folding desk made by plastic composite boards.
BACKGROUND ARTIn modern times, desk is widely used in office and home on account of its practicability. Folding desk is even more widely used because of its virtues such as occupying small space, having a small size, being convenient for storage and being convenient for transportation. Chinese patent number 96219977.X discloses a folding council board at 6 May 1998, as shown in
The purpose of the present invention is to provide a folding desk, which has a light weight, has a high strength, is easy to fold, occupies small space when it is folded.
The present invention adopts technical proposal as follows: a folding desk, comprising a desk face plate, a left side plate, a right side plate and a front baffle; the left side plate and the right side plate may link rotationally to the left side and the right side of the desk face plate respectively; the front baffle may link rotationally to the lower side of the desk face plate; there are position restricting and locking mechanisms at the connecting positions between the left side of the front baffle and the left side plate or/and between the right side of the front baffle and the right side plate, and the position restricting and locking mechanisms can make the desk stabilize at an open state; the desk face plate is plastic composite board of inhale molding, comprising a faceplate, a soleplate, a perforated plate and a liner; the perforated plate is filled between the faceplate and the soleplate, and the liner is sandwiched between the faceplate and the soleplate; the liner covers the perforated plate entirely or interval partly along the periphery of the perforated plate; the left side plate and the right side plate link to the desk face plate by hinge units, one parts of the hinge units are fixed to the liner of the desk face plate and another parts of the hinge units are fixed to the connective side plates.
The lower side of the desk face plate has a groove for accepting the front baffle; the position of the groove corresponds with the position of the folded front baffle; the length and width and depth of the groove is separately bigger than or equals to the length and width and depth of the front baffle.
The liner of the desk face plate has the shape of ; the liner and the soleplate of the desk face plate forms two grooves, thereinto one groove is for accepting the front baffle, the length and width and depth of the groove is separately slightly bigger than or equals to the length and width and depth of the front baffle.
The left side plate and the right plate and the front baffle are all plastic composite boards, comprising a faceplate, a soleplate and a liner; the liner is embedded into the plastic composite board, and the plastic composite board is also filled with paper honeycomb core or plastic honeycomb core or epispastic stuffing.
The desk face plate links to the front baffle by not less than two hinge units, one parts of the hinge units are fixed to the liner of the desk face plate and another parts of the hinge units are fixed to the connective front baffle.
The hinge unit comprises a first hinge plate, a second hinge plate and a pin; the pin drills through the first hinge plate and the second hinge plate to form a rotational hinge unit; the first hinge plate is fixed to liners of side plates or the front baffle and the second hinge plate is fixed to the liner of the desk face plate.
The first hinge plate or the second hinge plate of the plastic composite board is fixed to the liner of the plastic composite board by sealing, rivet linking or screw thread linking.
Both the first hinge plate and the second hinge plate are plastic ρ-shaped hinge or ρ-shaped hinge of sheet metal pieces or ρ-shaped hinge of sheet pieces.
The position restricting and locking mechanisms are constituted of matched L-shaped hook and C-shaped groove; the L-shaped hook has locking segment, the cross section of the locking segment has a first diameter and a second diameter, the first diameter and the second diameter have different diameters; the opening width of the C-shaped groove is smaller than the interior diameter of the C-shaped groove; the first diameter is bigger than the opening width of the C-shaped groove but is smaller than the interior diameter of the C-shaped groove; the second diameter is smaller than the opening width of the C-shaped groove; the L-shaped hook rotationally links to the liner of the front baffle, the C-shaped groove fixedly links to the liners of the left side plate or the right side plate.
The cross section of the locking segment of the L-shaped hook is oblate or rectangle or tympaniform.
The C-shaped groove is fixed to the liners of the left side plate or the right side plate by sealing, rivet linking or screw thread linking.
The C-shaped groove is plastic C-shaped groove or C-shaped groove of sheet metal pieces or C-shaped groove of sheet pieces.
The position restricting and locking mechanisms comprise matched elasticity C-shaped groove and bayoner lock; the diameter of the bayoner lock is bigger than the opening width of the elasticity C-shaped groove but is smaller than or is equal to the interior diameter of the C-shaped groove; the bayoner lock and elasticity C-shaped groove are separately fixed to the liner of the front baffle and the liner of the left side plate or the right side plate.
The position restricting and locking mechanisms comprise matched locking bolt and set nut, the locking bolt rotationally link to the liner of the front baffle, the set nut is fixed to the liners of the left side plate or the right side plate.
The front baffle and the left side plate and the right side plate are all vertical to desk face plate, and the front baffle is vertical to the left side plate and the right side plate.
The surfaces of the faceplate and the soleplate of the plastic composite board are printed with printing layer of grain of wood or marbling or complexed with film layer of grain of wood or marbling.
Comparing with the background of the technology, the present invention has virtues as follows:
firstly, the desk face plate and the left side plate and the right side plate and the front baffle are all or partly plastic composite boards, which have high strength and light weight; the position restricting and locking mechanisms can make desk stabilize at an open state, it is safe in using; it is easy to fold and occupies small space when it is folded; liners can expediently link to connecting pieces or position restricting and locking mechanisms; when fold is needed, the steps are as follows: 1, unbar position restricting and locking mechanisms; 2, fold the front baffle to make it lean against the underside of the desk face plate; 3, fold the left side plate and the right side plate to make it lean against the front baffle;
secondly, the underside of the desk face plate has groove, the front baffle are entirely folded into the groove, the thickness of the whole desk equals to the sum of the thickness of left side plate or the right side plate and the thickness of the desk face plate, which has small thickness, occupies small space, is easy for storage and transportation;
thirdly, the groove of the underside of the desk face plate is made by inhale molding, which is easy to machining, has a low factory cost and has a high strength;
fourthly, liner is embedded into plastic composite board, and the plastic composite board is also filled with paper honeycomb core or plastic honeycomb core or epispastic stuffing, which has a light weight and a high strength and a good showing;
fifthly, the desk face plate links to the front baffle by at least two hinge units, which has a high connection intensity and a long useful life, turns stably; and the hinge unit has a simple configuration;
sixthly, pin drills through the first hinge plate and the second hinge plate to form a rotational hinge unit, which has a simple configuration and turns expediently; the first hinge plate and the second hinge plate are respectively fixed to the liner of the plastic composite board, which is easy to connect;
seventhly, the first hinge plate and the second hinge plate are plastic ρ-shaped hinge, which has a low factory cost and a simple making and a high strength; the first hinge plate and the second hinge plate are ρ-shaped hinge of sheet metal pieces, which has a simple making and a high strength; the first hinge plate and the second hinge plate are ρ-shaped hinge of sheet pieces, which has a simple making and a high strength;
eighthly, the position restricting and locking mechanisms comprise matched L-shaped hook and C-shaped groove, when opening up or folding the folding desk of the present invention, rotating L-shaped hook to make the second diameter against to the C-shaped groove, so the locking segment of the L-shaped hook plugs into or gets off the C-shaped groove, namely the position restricting and locking mechanisms are at a looseness state; when the locking segment of the L-shaped hook plugs into the C-shaped groove, rotating L-shaped hook to make the first diameter against to the C-shaped groove, the locking segment of the L-shaped hook can not get off the C-shaped groove, namely the position restricting and locking mechanisms are at a locking state; the position restricting and locking mechanisms link to the liner, which connects expediently and hard, is convenient to use and has a good locking effect;
ninthly, the cross section of the locking segment of the L-shaped hook is oblate or rectangle or tympaniform, which has a simple configuration and a good locking effect.
tenthly, the position restricting and locking mechanisms comprise matched elasticity C-shaped groove and bayoner lock, when opening up or folding the folding desk, the bayoner lock can expediently plug into or get off the elasticity C-shaped groove by outside force, it is locked when the bayoner lock plugs into the C-shaped groove and it is open when the bayoner lock gets off the C-shaped groove, which is convenient to use and has a good locking effect;
eleventhly, the position restricting and locking mechanisms comprises matched locking bolt and set nut, it is locked when the locking bolt turns into the set nut and it is open when the locking bolt turns off the set nut, which is convenient to use and has a good locking effect;
twelfthly, the front baffle and the left side plate and the right side plate are all vertical to desk face plate, and the front baffle is vertical to the left side plate and the right side plate, which has a high stability;
thirteenthly, the surfaces of the faceplate and soleplate of the invention are printed with printing layer or complexed with film layer, which has a good showing and is made expediently.
Referring to
A folding desk, as shown in
The left side plate 12 and the right side plate 14 link rotationally to the left side and the right side of the desk face plate 10 respectively; the front baffle 16 link rotationally to the rear end of the lower side of the desk face plate 10; there are position restricting and locking mechanisms 18 at the connecting positions between the left side of the front baffle 16 and the left side plate 12 and between the right side of the front baffle 16 and the right side plate 14.
As shown in
The first soleplate 22 and the first liner 26 directly form two grooves. Thereinto previous groove 28 correspond with the position of the folded front baffle 16; the length and the width and the depth of the groove 28 separately slightly bigger than the length and the width and the depth of the front baffle 16. When folded, the front baffle 16 is entirely folded into the groove 28.
The surfaces of the first faceplate 20 and the first soleplate 22 of the plastic composite board are printed with printing layer of grain of wood or marbling.
As shown in
The surfaces of the second faceplate 30 and the second soleplate 32 of the second plastic composite board are printed with printing layer of grain of wood or marbling.
As shown in
As shown in
The lower side of the right side of the desk face plate 10 links to the right side plate 14 by another two second hinge units 54, whose connection mode is as above. The right side plate 14 links rotationally to the lower side of the right side of the desk face plate 10 by the two second hinge units 54.
As shown in
Two ends of the L-shaped hook separately form orientation locking piece 74 and rotational handhold piece 76; the main body of the L-shaped groove 68 has rotational connection part 78 and locking segment 80. The cross section of the locking segment 80 is oblate, and the locking segment 80 has a first diameter and a second diameter, the first diameter is bigger than the second diameter.
C-shaped groove 70 has hook-shaped opening 82 and a fifth connection piece 84, the width of the opening 82 is smaller than the diameter of the inner circular hole 90 of the groove 70. The first diameter is bigger than the width of the opening 82 of the C-shaped groove 70 but is smaller than the diameter of the inner circular hole 90 of the groove 70; the second diameter is smaller than the width of the opening 82 of the C-shaped groove 70. The fifth connection piece 84 of the C-shaped groove 70 is fixed to the second liner 36 of the second plastic composite board of the front baffle 16 by screw thread.
U-shaped connection piece 72 has sixth connection plate 86 and two rotational connection slices 88, the two rotational connection slices 88 are formed by two sides of the sixth connection plate 86 separately extending breadthwise. The rotational connection part 78 of the L-shaped hook 68 links rotationally to two rotational connection slices 88. Orientation locking piece 74 of the L-shaped hook 68 locates in the side of the rotational connection slices 88 to restrict its longitudinal slippage. The sixth connection plate 86 of the U-shaped connection piece 72 is fixed to the second liner 36 of the second plastic composite board of the left side plate 12 by screw thread.
The right side of the front baffle 16 links to the right side plate 12 by another position restricting and locking mechanisms 18, which can make the desk keep its stabilization of unfolding, which has same structure with the position restricting and locking mechanisms 18 above.
While the present invention has been described in connection with what is considered the most practical and preferred embodiment, it is understood that present invention is not limited to the disclosed embodiment but is intended to cover various arrangements included within the spirit and scope of the broadest interpretation so as to encompass all such modifications and equivalent arrangements.
INDUSTRY PRACTICABILITYThe present invention is a folding desk made by plastic composite board, which has a light weight, a high strength, a good showing, and is convenient for transportation, and has a simple production process, and can be industrialized, has a good industry practicability.
Claims
1. A folding desk, comprising: a desk face plate, a left side plate, a right side plate and a front baffle; the left side plate and the right side plate being linkable rotationally to the left side and the right side of the desk face plate respectively; the front baffle being linkable rotationally to the lower side of the desk face plate; position restricting and locking mechanisms being disposed at the connecting positions between the left side of the front baffle and the left side plate or/and between the right side of the front baffle and the right side plate, and the position restricting and locking mechanisms stabilize the desk upon opening; the desk face plate is plastic composite board of vacuum molding, comprising a faceplate, a soleplate, a perforated plate and a liner; the perforated plate is sandwiched between the faceplate and the soleplate, and the liner is sandwiched between the faceplate and the soleplate; the liner at least partially covers the perforated plate along the periphery of the perforated plate; the left side plate and the right side plate link to the desk face plate by hinge units, at least one first part of the hinge units is fixed to the liner of the desk face plate and at least one second part of the hinge units is fixed to the connective side plates.
2. A folding desk according to claim 1, wherein the lower side of the desk face plate has a groove for accepting the front baffle; the position of the groove corresponds with the position of the folded front baffle; the length and width and depth of the groove is separately larger than or equals the length and width and depth of the front baffle.
3. A folding desk according to claim 1, wherein the liner of the desk face plate is a shaped frame; the liner and the soleplate of the desk face plate forms two grooves, thereinto one groove is for accepting the front baffle, the length and width and depth of the groove is separately slightly bigger than or equals to the length and width and depth of the front baffle.
4. A folding desk according to claim 1, wherein the left side plate and the right plate and the front baffle are all plastic composite boards, including a faceplate, a soleplate and a liner; the liner is embedded into the plastic composite board, and the plastic composite board is also filled with paper honeycomb core or plastic honeycomb core or epispastic stuffing.
5. A folding desk according to claim 1, wherein the desk face plate links to the front baffle by not less than two hinge units, one part of each hinge unit is fixed to the liner of the desk face plate and another part of each hinge unit is fixed to the connective front baffle.
6. A folding desk according to claim 5, wherein the hinge unit includes a first hinge plate, a second hinge plate and a pin; the pin extends through the first hinge plate and the second hinge plate to form a rotational hinge unit; the first hinge plate is fixed to liners of the side plates or the front baffle, and the second hinge plate is fixed to the liner of the desk face plate.
7. A folding desk according to claim 6, wherein both the first hinge plate and the second hinge plate are plastic ρ-shaped hinge or a ρ-shaped hinge of sheet metal pieces or a ρ-shaped hinge of sheet pieces.
8. A folding desk according to claim 1, wherein the position restricting and locking mechanisms are constituted of a matched L-shaped hook and a C-shaped groove; the L-shaped hook has a locking segment, the cross section of the locking segment has a first diameter and a second diameter, the first diameter and the second diameter have different diameters; an opening width of the C-shaped groove is smaller than an interior diameter of the C-shaped groove; the first diameter is bigger than an opening width of the C-shaped groove but is smaller than an interior diameter of the C-shaped groove; the second diameter is smaller than the opening width of the C-shaped groove; the L-shaped hook rotationally links to the liner of the front baffle, the C-shaped groove fixedly links to the liners of the left side plate or the right side plate.
9. A folding desk according to claim 8, wherein a cross section of the locking segment of the L-shaped hook is oblate or rectangle or tympaniform.
10. A folding desk according to claim 8, wherein the C-shaped groove is fixed to the liners of the left side plate or the right side plate by sealing, rivet linking or screw thread linking.
11. A folding desk according to claim 8, wherein the C-shaped groove is made of plastic sheet metal pieces or is a C-shaped groove hinge of sheet pieces.
12. A folding desk according to claim 1, wherein the position restricting and locking mechanisms include a matched elasticity C-shaped groove and a bayonet lock; the diameter of the bayonet lock is larger than the opening width of the elasticity C-shaped groove but is smaller than or is equal to the interior diameter of the C-shaped groove; the bayonet lock and the elasticity C-shaped groove are separately fixed to the liner of the front baffle and the liners of the left side plate or the right side plate.
13. A folding desk according to claim 1, wherein the position restricting and locking mechanisms are matched locking bolt and set nut, the locking bolt rotationally links to the liner of the front baffle, the set nut is fixed to the liners of the left side plate or the right side plate.
14. A folding desk according to claim 1 wherein surfaces of the faceplate and the soleplate of the plastic composite board are printed with a printing layer of wood grain, marbling or complexed with a film layer of wood grain or marbling.
Type: Application
Filed: Sep 22, 2004
Publication Date: Jun 26, 2008
Inventor: Luhao Leng (Fujian)
Application Number: 11/883,824
International Classification: A47B 3/00 (20060101);