CN2349885Y - Adjustable top tilt-angle folding table and seat - Google Patents

Abstract

The utility model relates to a folding desk and chair which can be used for adjusting the slope angle of a desktop and is particularly used as a desk and chair for students, comprising the desktop, a back shelf, a front shelf, a pin shaft used for connecting the back shelf and the front shelf, and a sitting board which is hinged with the back shelf through a pin and is movably connected in the long hole of the front shelf by a side pin which is fixedly arranged on the sitting board. The utility model has the advantages that the desktop is connected with the back shelf by a hinge and an adjusting device which can be used for adjusting the slope angle of the desktop is arranged between the desktop and the front shelf. Thereby, the utility model solves the problems of the existing folding desk and chair that because the desktop is fixedly connected with the front shelf, the students with different heights can not have correct postures in use, which affects physical and mental health, articles are easy to slide off from the desktop, etc.

Description

The folding table/chair at adjustable desktop inclination angle

The utility model relates to a kind of student's of can be used as desk and chair, or is used as the tables and chairs that outdoor sketching is drawn or write, reads.

Existing folding table/chair includes side arm, after-frame, desktop, seat, and the bearing pin that connects usefulness, its shortcoming is: 1) its desktop is affixed with side arm, so the inclination angle between the desktop same level face can not be regulated, therefore can not make the student of different height when doing one's homework or read, correct posture can both be arranged; 2) there be not the protecting of adjustment height on the desktop, so the article on the desktop are slipped on the ground easily along plate.

The purpose of this utility model is to overcome the shortcoming that exists in the above-mentioned prior art, the folding table/chair at a kind of adjustable desktop inclination angle is provided, so that it have can according to user's specific requirement adjust desktop the inclination angle, can prevent the article landing ground on the desktop, and characteristics such as simple in structure, easy to use, materials being fabricated province.

The folding table/chair at the utility model is adjustable desktop inclination angle contains desktop, after-frame by back bar and the affixed one of balancing pole, side arm by preceding bar and the affixed one of bottom bar, be used to connect the bearing pin of side arm and after-frame, one hinged and be connected seat in the slotted hole of side arm with its intrinsic side pin kink with pin with after-frame, it is characterized in that: desktop connects with rotating hinge with after-frame, and desktop is with the adjusting device that has adjustable desktop inclination angle between the side arm, and this device contains the lower beam of a band chute vane on it, but upper boom that has the pin rod of kink in chute vane on it, one is connected and can limits the wing nut of upper boom with the distance between the lower beam to tighten on the threaded pin rod.

Can have on the desktop of the utility model folding table/chair and protect along plate and protect along the lowering or hoisting gear that has adjustable its emersion height on the plate, this device includes the major part pin that is fixed on the desktop sidewall and is positioned at and protects the groove arranged side by side hole that is complementary along its shape of plate side wall and size and major part pin.

The utility model has the advantages that: 1) can regulate,, be beneficial to student's physical and mental health so can make the student of the different height Shi Douke that does one's assignment on the table that correct posture is arranged because of the inclination angle between the desktop same level face; 2) be provided with on the table and protect after plate, make the article on the desktop can be, therefore bring convenience, reliably to the user because of landing ground, table inclined plane; 3) simple in structure, the materials being fabricated of the utility model folding table/chair is economized, and folding convenient, the volume after folding are little.

To and contrast accompanying drawing by embodiment below, the utility model will be further described below.Have in the accompanying drawing:

Fig. 1 is the stereogram of the folding table/chair at the adjustable desktop of the utility model inclination angle;

Fig. 2 and Fig. 3 are respectively its front view and left views;

Fig. 4 is the A-A cutaway view among Fig. 3;

Fig. 5 is the B-B cutaway view among Fig. 4, and wherein (a) and (b) are expressed respectively and protected along plate two kinds of different height and positions on the table.

Fig. 6 is that the c of the seat 5 among Fig. 3 is to view.

Desktop in the present embodiment, seat, protect along plate, and rod members such as preceding bar, back bar, balancing pole, upper boom, lower beam, bottom bar all adopt woodenly, but for for the purpose of accompanying drawing clear, the hatching of these ligneous pieces is with the method representation of expression metal section line.

The folding table/chair of from Fig. 1～Fig. 3, seeing adjustable desktop inclination angle include a desktop 1, one by bar 2 after two and a balancing pole 6 affixed after-frames that form, one by two preceding bars 4 and a foundation bar 7 affixed side arms that form, be used to be connected the bearing pin 3 of side arm and after-frame, and the adjusting device 8 at seat 5, desktop inclination angle, protect along plate 9, wherein have on the preceding bar of side arm between slotted hole 41, the two back bars can be affixed bracing piece 21 in order to the rigidity that strengthens after-frame, and the length L of balancing pole is greater than the distance 1 between the two back bars, in case tables and chairs are toppled over to both sides.The shape of seat also can see from Fig. 6, and its plate section width h between the frame of front and back is less than the seat segment width H at its rear portion, so that the student can cosily ride seat.Be symmetrical arranged side pin 51 and side opening 52 on the dual-side of seat 5, wherein side pin kink in slotted hole 41, side opening then by pin 31 make seat be hinged on the back bar 2 on.In the use of folding table/chair, seat is stabilized on forward and backward; When folding, seat can be upwards upset of center with pin 31, meanwhile, side pin 51 in slotted hole 41 to lower slider.

The adjusting device 8 at adjustable desktop inclination angle includes upper boom 81, lower beam 85, chute vane 84, pin rod 82 and wing nut 83.Chute vane 84 is fixed on the lower beam 85 with two screws 86, band slideway in the chute vane; The section of being threaded on the pin rod 82, it wears and is fixed on the upper boom 81, and the while kink is in the slideway of chute vane 84.Pin rod is overhanging on slideway, goes up by the wing nut 83 that has been threaded for this overhanging section.If tighten wing nut, stable distance, the desktop between the then upper and lower bar rests on certain gradient; Inclination angle as needs change desktop then needs to turn on nut, to change the distance that goes up between the lower beam.Distance between the upper and lower bar stretches or shortens, and the leading section that can promote desktop rises or descends, and realizes that the inclination angle becomes big or diminishes; Fastening nut again when adjustment finishes rests on the required gradient desktop.The same desktop of upper boom, back bar are with all connecting with hinge 10 between the desktop, hinge in the present embodiment adopts hinge, and the installation of this hinge on wooden upper boom, back bar for convenience, upper boom, back bar are with having connecting rod 11 between the desktop respectively, this connecting rod is solidified as a whole with upper boom or back bar earlier, and two single pages of hinge are installed respectively on connecting rod at desktop then.

Adjusting device 8 in the utility model, pin rod 82 is affixed with lower beam with the upper boom connection as chute vane 84, and its result of use is constant; And the same desktop of upper boom, back bar replace hinge and connect with can also rotating bearing pin between the desktop connecting, and make the folding table/chair at the adjustable desktop of the utility model inclination angle with the material that adapts to except that timber.

Have on the desktop 1 in the present embodiment folding table/chair and protect along plate 9, and protect along the lowering or hoisting gear that has adjustable its emersion height on the plate, this device can see from Fig. 4 and Fig. 5, its affixed major part pin 12 and protect the groove arranged side by side hole 91 that is complementary with major part pin size, shape along having in the plate sidewall on protecting the desktop sidewall that reclines mutually with desktop along plate.Side by side the groove hole is to have comprised two row and desktop parallel slots that are being communicated with in the present embodiment, when the major part pin is positioned at following slotted eye, shown in Fig. 5 (a), then protects along plate top surface and is higher than desktop, at this moment can prevent the downward landing of article on the desktop; Do not have the article of downslide or require desktop smooth as desktop, then removable protecting along plate makes the major part pin be positioned at above-listed slotted eye, shown in Fig. 5 (b).The columns of energy slotted eye can have the different height that stretches out so that protect along plate on the table greater than two side by side.

The folding table/chair at the utility model is adjustable desktop inclination angle can be with seat around upwards upset of pin 31 when collection, unscrew simultaneously wing nut and on push to bar so that desktop upwards, shown in two solid arrows among Fig. 3, till each assembly reclines mutually on the tables and chairs.Can have recess 13 on the upper and lower bar, so that the interlock mutually when reclining of each rod member makes tables and chairs be folded into a plane at last, the volume after it is folding is little, and collection is convenient.

Claims (3)

1, the folding table/chair at a kind of adjustable desktop inclination angle, it contains desktop (1), after-frame by back bar (2) and the affixed one of balancing pole (6), side arm by preceding bar (4) and the affixed one of bottom bar (7), be used to connect the bearing pin (3) of side arm and after-frame, one hinged and be connected seat (5) in the slotted hole (41) of side arm with its intrinsic side pin (51) kink with pin (31) with after-frame, it is characterized in that: desktop (1) connects with rotating hinge (10) with after-frame, and desktop is with the adjusting device that has adjustable desktop inclination angle between the side arm (8), and this device contains the lower beam (85) of a band chute vane (84) on it, but upper boom (81) that has the pin rod (82) of kink in chute vane on it, one is connected and can limits the wing nut (83) of upper boom with the distance between the lower beam to tighten on the threaded pin rod (82).

2, folding table/chair as claimed in claim 1 is characterized in that: have on the said desktop (1) and protect along plate (9).

3, folding table/chair as claimed in claim 1 or 2, it is characterized in that: said protecting along the lowering or hoisting gear that has adjustable its emersion height on the plate (9), this device include the major part pin (12) that is fixed on the desktop sidewall and are positioned at its shape and the big or small groove arranged side by side hole of protecting along plate side wall (91) that is complementary with the major part pin.

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