CN201683445U

CN201683445U - Automatic pop-up device of folding seat cushion

Info

Publication number: CN201683445U
Application number: CN2010200009304U
Authority: CN
Inventors: 凌美全; 王资媚
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-01-18
Filing date: 2010-01-18
Publication date: 2010-12-29
Anticipated expiration: 2020-01-18

Abstract

The utility model discloses an automatic pop-up device of a folding seat cushion, which is characterized in that a pop-up device is sheathed on a rotating pivot contained by a pivoting part between the folding seat cushion and a front foot rest; the pop-up device comprises a volute spring and a fixed rod, wherein the fixed rod is vertically arranged on the front foot rest; the first end of the volute spring is sheathed and connected on the rotating pivot; the second end of the volute spring is arranged on the periphery of the fixed rod; when a person sits on the folding seat cushion, the rotating pivot rotates towards one direction; furthermore, the volute spring is compressed to form a pre-tightening force as the second end of the volute spring props against the fixed rod; the pressure on the seat cushion is released when the person leaves the seat, the volute spring releases the pre-tightening force and drives the rotating pivot to rotate towards the other direction, thus automatically turning over the seat cushion into a folded state.

Description

The rumble seat chair cushion bounces up device automatically

Technical field

The utility model relates to the folding seat that a kind of people of confession takes, and relates in particular to the rumble seat that a kind of chair cushion can fold automatically.

Background technology

The chair cushion of rumble seat normally adopts two groups of pin-jointed structures and is articulated in preceding foot rest inboard, makes chair cushion have turnover characteristic.The chair cushion of traditional folding seat folds mode, is to adopt the free-hand method of pulling, and makes the chair cushion of flattening be turned into vertical collapse state; Because its inconvenience, then there is the dealer to develop a kind of chair cushion retracting structure, be that chair frame bottom in a side links an extension spring, the other end of extension spring is linked to preceding foot rest, when seat flattens, spring is stretched and forms one pretightning force, when discharging seating pressure, by the strength of spring reinstatement chair cushion is turned into vertical collapse state; Yet adopt extension spring that following shortcoming is arranged: the speed of pulling back that the first, it causes is too fast, can clash into fast when seat elasticity folds to be arranged on the stop part on the folding seat support and to produce noise.The second, whole chair cushion retracting structure exposes below chair cushion, injures the user probably.Three, find that on practical probation extension spring is easy to elastic fatigue, can cause the folding of chair cushion uncertain, therefore be necessary to be improved.

The utility model content

For the chair cushion retracting structure that improves existing rumble seat folds excessive velocities, easily generation noise, retracting structure expose the shortcoming that easily injures user, the easy elastic fatigue of extension spring under chair cushion, the utility model provides a kind of chair cushion of rumble seat to bounce up device automatically, can relax the chair cushion folding and bounce up automatically to required location, do not produce noise, and bouncing up device has protecting cover and covers structure, can not injure the user, bounce up device and adopt whirlpool type spring, the higher elastic fatigue that is difficult for of spring rigidity, and the shortcoming of elimination prior art.

Based on aforementioned purpose, the utility model provides a kind of rumble seat chair cushion to bounce up device automatically, and at the chair frame and wherein be provided with one between the foot rest before one and bounce up device automatically, this bounces up device automatically and comprises a rotating hinge, a fixed bar, a whirlpool type spring; This rotating hinge has relative two ends, wherein first end laterally runs through this preceding foot rest, but and combine and interlock with a connecting plate that is connected in the chair frame, the cylindrical end of second end exposes on preceding foot rest surface, this fixed bar is vertically set on the preceding foot rest surface adjacent to this rotating hinge second end, first end of this whirlpool type spring is sheathed and be linked to second end of described rotating hinge, and the second end frame of this whirlpool type spring is located at around this fixed bar;

When the occupant takes chair cushion, rotating hinge is rotated towards a direction, and because of second end of described whirlpool type spring compresses described fixed bar, whirlpool type spring is tightened form one pretightning force, when the occupant leaves chair cushion, discharge this burst pretightning force by whirlpool type spring, and the driven rotary pivot rotates towards other direction, and chair cushion is turned into collapse state automatically.

The utility model replaces extension spring by whirlpool type spring, and the power of chair cushion upset is relaxed, and whirlpool type spring service life than the extension spring height, can grow and protect the action that chair cushion folds.

Because second end of described whirlpool type spring is that frame is located at around the fixed bar, when chair cushion turn to whirlpool type spring second termination when contacting second of fixed bar, just limit chair cushion and no longer overturn, can avoid chair cushion excessively upset collide stop part and produce noise.

In addition, bounce up device and further comprise a lid, link, make lid can cover the whole device that bounces up, to avoid injuring the user by the end face of a coupling assembling with this lid and fixed bar.

Described rumble seat chair cushion bounces up device automatically and also comprises a reinforcing block, and this reinforcing block is arranged at a conduit surface of described preceding foot rest, and described fixed bar is vertically installed on this reinforcing block, and first end of described rotating hinge laterally runs through this reinforcing block.

As from the foregoing, chair cushion provided by the utility model bounces up the mitigation of the more existing chair cushion retracting structure of device, noiselessness, safety and long service life.

Description of drawings

Fig. 1, Figure 1B bounce up device preferred embodiment three-dimensional exploded view automatically for rumble seat chair cushion described in the utility model.

Figure 1A bounces up another three-dimensional exploded view of device preferred embodiment automatically for rumble seat chair cushion described in the utility model.

Fig. 2 bounces up device preferred embodiment constitutional diagram automatically for rumble seat chair cushion described in the utility model.

Fig. 3 is the front view after rumble seat described in the utility model folds.

Fig. 4, Fig. 4 A, Fig. 5, Fig. 5 A are the action diagram that rumble seat chair cushion described in the utility model bounces up the device preferred embodiment automatically.

The specific embodiment

Those skilled in the art below cooperate Figure of description that embodiment of the present utility model is done more detailed description, so that can implement after studying this specification carefully according to this.

See also Fig. 1, Figure 1B, Figure 1A, Fig. 2, be respectively rumble seat chair cushion described in the utility model and bounce up device preferred embodiment three-dimensional exploded view and constitutional diagram automatically.Have an articulated section 3 between rumble seat chair frame 11 and the preceding foot rest 2, comprise a connecting plate 32 that links to each other with chair frame 11 and a rotating hinge 31.This rotating hinge 31 has relative two ends, and the first end tail end is designed to semicircle, and second end is cylindrical; Offer in advance on this connecting plate 32 one with the corresponding fixing hole 321 of these rotating hinge 31 first ends with semicircular in shape.Rotating hinge 31 first ends laterally run through preceding foot rest 2, and be arranged in the fixing hole 321 of this connecting plate 32, second end then is exposed to preceding foot rest 2 surfaces, can guarantee that so connecting plate 32 is along with rotating hinge 31 rotations, avoid rotating hinge 31 in fixing hole 321, to dally, and then drive chair cushion 1 upset.One bounces up device 4, foot rest 2 surfaces before being arranged at by rotating hinge 31, and this bounces up device 4 and can cause chair cushion 1 to turn into collapse state automatically when human body leaves chair cushion 1.

The setting that bounces up device 4 particularly can be arranged on the reinforcing block 46, the width and the degree of depth of foot rest conduit 21 before the width of this reinforcing block 46 and thickness must meet, so that this reinforcing block 46 is welded on the preceding foot rest conduit 21, can increases the intensity that bounces up device 4 by this.Bounce up device 4 and comprise a fixed bar 42, described rotating hinge 31 and a whirlpool type spring 41.This fixed bar 42 can be vertically installed on the reinforcing block 46 by welding manner; First end of rotating hinge 31 laterally runs through the some of the preceding foot rest 2 that is provided with reinforcing block 46, and combines with connecting plate 32, and second end of rotating hinge 31 is exposed to reinforcing block 46 outsides, and in its end face all profile grooves that extend a part of periphery 311 is set; This whirlpool type spring 41 can produce the elastic-restoring force of mitigation than extension spring, service life is higher, whirlpool type spring 41 has two ends, first end 411 is sheathed on this rotating hinge 31, and can embed these profile groove 311, the second ends 412 and be bent into and be close to ring-type, and frame is located at around the fixed bar 42, the body of whirlpool type spring 41 just is contacted with the surface of reinforcing block 46, and whirlpool type spring 41 is arranged on the preceding foot rest 2 indirectly.For the structure of avoiding bouncing up device 4 injures the user because of exposing in preceding foot rest 2 outsides, can further design a lid 43, the shape of this lid 43 does not limit, as long as fixed bar 42, rotating hinge 31 can be covered with whirlpool type spring 41.The connected mode of lid 43 can for, first coupling assembling 44 is set, it comprises bolt 441 and nut 442, bolt 441 is passed lid 43 from the outside, 442 screw connecting sheaths of nut are located at the end that passes of bolt 441, and lock onto lid 43 medial surfaces, can avoid bolt 441 to withdraw from lid 43, bolt 441 further is screwed together in advance in the screwed hole 421 that fixed bar 42 end faces are offered, so just, lid 43 is fixed on the fixed bar 42, this first coupling assembling is not defined as the assembly of bolt and nut, also can be rivet, detachable or non-removable assemblies such as pin all can.For avoiding lid 43 hypomere portions to rock, also can further offer a blind hole 312 at second end face of rotating hinge 31, second coupling assembling 45 is set, it comprises bolt 451 and nut 452, bolt 451 is passed lid 43 from the outside, 452 screw connecting sheaths of nut are located at the end that passes of bolt 451, this blind hole 312 is stretched in the end of bolt 451, so, just can locate the lid Lower Half, but the internal diameter of bolt 451 is smaller and do not contact with blind hole 312 inwalls than the internal diameter of blind hole 312, in order to avoid influence the spinning movement of rotating hinge 31; Second coupling assembling is not defined as the assembly of bolt and nut, also can be detachable or non-removable assemblies such as rivet, pin and all can.See also Fig. 3, be the front view of rumble seat described in the utility model after folding.Whole bounce up device 4 and be arranged on before the lateral surface of foot rest 2, when therefore folding, can not influence rear leg 5 and desire to fold position to preceding foot rest 2 inboards, also can not influence the rotary movement of chair cushion 1.

See also Fig. 4, Fig. 4 A, and Fig. 5, Fig. 5 A,, omit lid among the figure for rumble seat chair cushion described in the utility model bounces up the action diagram of device preferred embodiment automatically.When occupant on chair cushion 1, automatically the micromotion that bounces up device is, chair cushion 1 is subjected to downward pressure and just rotates towards a direction by connecting plate 32 driven rotary pivots 31, whirlpool type spring 41 first ends 411 thereby rotation generation tension effect thereupon, 412 at whirlpool type spring 41 second ends can compress fixed bar 42A point earlier, when continuing again to bestow the chair cushion downforce, strain is radially tightened in beginning to whirlpool type spring 41 first ends 411 along with rotating hinge 31 rotations, launches flat leaning against fully up to chair cushion 1 and stops the strain action on rear leg 5 both ends of the surface.When leaving chair cushion 1, the occupant discharges chair cushion 1 pressure, elastic-restoring force driven rotary pivot 31 reverse rotations by whirlpool type spring 41, connecting plate 32 rotates synchronously with rotating hinge 31 and impels chair cushion 1 to turn automatically, leave fixed bar 42A point up to whirlpool type spring 41 second ends, and be subjected to fixed bar 42B point block, spring is promptly finished and is replied action, and chair cushion 1 does not turn backward because of no longer stressed can not the continuation yet; There is relative relation the position that described profile groove 311 is offered with the torsion of whirlpool type spring 41, learn by the rule of thumb, as shown in present embodiment figure, the position of profile groove 311 can make whirlpool type spring 41 drive chair cushion 1 and turn to the position of about 70 degree, so not only can reach and allow bit function, also can avoid chair cushion 1 excessive upset and clash into the chair cushion stop part that is arranged on the folding seat, cause folding seat to be undermined the generation noise because of reversal rate is too fast.

The above only is in order to explain preferred embodiment of the present utility model; be not that attempt is done any pro forma restriction to the utility model according to this; therefore; all have in that identical creation spirit is following do relevant any modification of the present utility model or change, all must be included in the category of the utility model intention protection.

Claims

1. a rumble seat chair cushion bounces up device automatically, it is characterized in that, at the chair frame and wherein be provided with one between the foot rest before one and bounce up device automatically, this bounces up device automatically and comprises a rotating hinge, a fixed bar, a whirlpool type spring; This rotating hinge has relative two ends, wherein first end laterally runs through this preceding foot rest, but and combine and interlock with a connecting plate that is connected in the chair frame, the cylindrical end of second end exposes on preceding foot rest surface, this fixed bar is vertically set on the preceding foot rest surface adjacent to this rotating hinge second end, first end of this whirlpool type spring is sheathed and be linked to second end of described rotating hinge, and the second end frame of this whirlpool type spring is located at around this fixed bar;

2. the rumble seat chair cushion bounces up device automatically according to claim 1, it is characterized in that, the described device that bounces up further comprises a lid, with one first coupling assembling lid is fixed on the described fixed bar, described lid is fixed on can covers the whole position that bounces up device.

3. the rumble seat chair cushion bounces up device automatically as claimed in claim 1 or 2, it is characterized in that, also comprise a reinforcing block, this reinforcing block is arranged at a conduit surface of described preceding foot rest, described fixed bar is vertically installed on this reinforcing block, and first end of described rotating hinge laterally runs through this reinforcing block.