CN2264117Y - Integrately closing structure of pram - Google Patents

Abstract

The utility model relates to an integral folding structure of a pram. A joint part is arranged on the connecting end of a linear handle rod of the pram and a fore wheel supporting rod; the joint part is also pivoted with a back wheel supporting rod. A horizontal chair seat supporting rod is pivoted on the fore wheel supporting rod and the back wheel supporting rod. The central section of the chair seat supporting rod is also pivoted with a chair back rod, a movable cross rod is arranged on the chair back rod to be buckled and hung on a positioning base arranged on the upper part of the back wheel supporting rod, and the chair back rod can incline an angle. Thereby, when the handle rod is pressed downwards, the joint part can make the fore wheel supporting rod bent back to drive the chair seat supporting rod to upwards push the chair back rod to make the cross rod disengaged from the positioning base, so that the pram frame can be folded in a linkage mode.

Description

The integral type collapsible structure of perambulator

The utility model relates to a kind of integral type collapsible structure of perambulator, and You Zhiyi makes each support body of perambulator have the mechanism of a mutual interlock, can the master control operation by handle stem be taken down the exhibits by the unitized frame interlock in take down the exhibits.

The kind of perambulator is numerous at present, the perambulator that one kind Europe specifications design is wherein arranged, as shown in Figure 9, it mainly is to make handle stem A tiltedly extend with front-wheel pole B down forward join, constitute the body frame body of an oblique straight line, make rear wheel fulcrum bar C upper end be articulated in the appropriate location that handle stem A and front-wheel pole B join again; This basic framework is the perambulator of " Europe rule "; In addition, together as shown in Figure 9, this perambulator of commonly seeing is except that above-mentioned basic framework, still design the connecting rod mechanism D of interlock rear wheel fulcrum bar C and handle stem A, and hold in the pivot of rear wheel fulcrum bar C and front-wheel pole B knot and to establish a braking seat E and be sleeved on handle stem A, and make handle stem A relatively front-wheel pole B contract and move, in order to folding vehicle frame reduction volume.

Shown in Figure 10,11, the above-mentioned perambulator of commonly seeing must be the state of pulling of separating by a shilling braking seat E when folding for another example, the tiltedly following forward relative front-wheel pole B of handle stem A is contracted move again, fits to make the handle stem A drivening rod D of mechanism interlock rear wheel fulcrum bar C and be against front-wheel pole B; And detailed its operating mode of seeing, when desiring that handle stem A is contracted and move in front-wheel pole B, be to make front-wheel pole B support terminate in a fixture (as ground or wall limit), or pass handle stem A and front-wheel pole B simultaneously in opposite directions by moving with two hands, its operating mode is not easy to the petite person of stature and implements, and rear wheel fulcrum bar C still needs and is aided with the external force passing, and the side is beneficial to and is subjected to handle stem A interlock, and the single-piece interlock process utmost point has some setbacks.

Again, the perambulator of general Europe rule, its chair back is made as fixed type mostly, can't adjust; And minority is adjustable, and its chair back angle-adjusting mechanism is to be independent agency, in folding operation, is to need first operations chair dorsal horn degree to predeterminated position, can fold car body again; The complicated inconvenience of single-piece " two-period form folds " operating process.

The purpose of this utility model is promptly providing a kind of integral type collapsible structure of perambulator, but each rod member interlock of unitized frame is folded.

For achieving the above object, the integral type collapsible structure of the utility model perambulator, constitute the vehicle body support body with handle stem, front-wheel pole, rear wheel fulcrum bar, seat support pole and chair back bar, handle stem and front-wheel pole are in line and join, its joint is established one and is articulated the joint portion that forms by large and small base, suitable make large and small base be socketed on handle stem and front-wheel pole respectively, and make the rear wheel fulcrum bar upper end be articulated in the big base of joint portion; This seat support pole one-tenth level articulates with two side ends and is fixed in front and rear wheel pole in addition, and seat support pole central sections pivot is tied a Jiong shape chair back bar; Wherein, each suitable establishes a fixed plate on this chair back bar both sides shaft, and tool one slotted eye on the fixed plate suitablely makes a cross bar stretch with the two ends activity placing slotted eye, and between cross bar and the chair back bar company's of establishing one spring, begin to make the cross bar perseverance to the groove hole end displacement; This above-mentioned relatively chair back bar cross tube place, rear wheel fulcrum bar top establishes two positioning seats; Form the Ka Gou of the different height of multistage on its pedestal, suitable cross bar card for chair back bar is hung, but to make the adjustment of chair back bar multistage form the heeling condition of different angles.

After the utility model adopts above-mentioned framework, handle stem is that fulcrum moves to pressing down with the joint portion in season, when the relative bending of handle stem with front-wheel pole, fitting to fold front-wheel pole backward, shift cross bar that seat support pole upwards promotes chair back bar and break away from positioning seat on the rear wheel fulcrum bar and give, again with handle stem downwards by move in seat support pole and front and rear wheel pole hypomere backward closing fold in the lump in the interlock process of seat support pole.But each bridge of the utility model is interlock mutually, and simultaneously, the chair back bar that can adjust height is received voluntarily and leaned on, and need not to operate separately, convenient rapidly, also do not hinder smoothly in the operation.

Below in conjunction with diagram and embodiment the utility model is further described.

Fig. 1 is the structural representation of the utility model perambulator;

Fig. 2 is the joint portion structural representation of the utility model perambulator;

Fig. 3 is that the chair back bar of the utility model perambulator is adjusted structural representation;

Fig. 4 is the chair back bar adjustment location scheme drawing of the utility model perambulator;

Fig. 5 is the joint portion illustrative view of the utility model perambulator;

Fig. 6 is the whole actuating scheme drawing () of the utility model perambulator;

Fig. 7 is the whole actuating scheme drawing (two) of the utility model perambulator;

Fig. 8 is the whole actuating scheme drawing (three) of the utility model perambulator;

Fig. 9 is a scheme drawing of commonly using product;

Figure 10 be commonly use product fold scheme drawing ();

Figure 11 be commonly use product fold scheme drawing (two).

At first consult Fig. 1, perambulator support body of the present utility model mainly is made up of handle stem 1, front-wheel pole 2, rear wheel fulcrum bar 3, seat support pole 4 and chair back bar 5.Handle stem 1 is in line with front-wheel pole 2 and joins, and the joint is provided with a joint portion 6, and rear wheel fulcrum bar 3 upper ends are articulated in joint portion 6 near handle stem 1 one side appropriate locations; In addition, 4 one-tenth levels of seat support pole to each coffin with a corpse in it of two side ends is connect be fixed in front and rear wheel pole 2, on, and its bar section appropriate location pivot that is positioned at 2,3 of front and rear wheel poles is tied the chair back bar 5 of a Jiong shape, on the chair back bar 5 and establish the knot one activity cross bar 51, reach in rear wheel fulcrum bar 3 tops a sheathed positioning seat 7, and chair back bar 5 cross tubes 51 card is hung on the positioning seat 7, begin into the upright angle of inclining.

Wherein, this joint portion 6, as shown in Figure 2, big by two tool hollow in-to-ins, tubule seat 61,62 are articulated forms, big base 61 is socketed on handle stem 1, tubule seat 62 is socketed on front-wheel pole 2, and in handle stem 1, establish a movable tightening latch 63 and make it can be placed through in the tubule seat 62 location, wherein these tightening latch 63 1 ends form a tool slotted eye 631 and are nested with the body of rod of spring 64, suitable the supporting of spring 64 1 ends terminates in the fixing rivet 65 that passes handle stem 1 and tightening latch 63 slotted eyes 631, and handle stem 1 an outer sheathed block set 66, the cover 66 on tool one pass the set relatively slotted eye 11 of handle stem 1 rivet 67 and with bar in tightening latch 63 body of rod ends fixed, and be provided with the protruding tip 12 of a clip in handle stem 1 upper end, move the location on the suitable restriction block set 66; Be recessed in the big base 61 by passing the tightening latch 63 that drives in the handle stem 1 with block set 66, the suitable control tightening latch 63 that gives breaks away from tubule seat 62, and the beginning makes the large and small base 61,62 of joint portion 6 bend relatively.

Secondly, as shown in Figure 3, set firmly two fixed plates 52 on this chair back bar 5, on the fixed plate 52 and form a slotted eye 521, suitable stretching for a cross bar 51 two ends put wherein, and the spring 53 that links to each other in cross bar 51 and chair back bar 5 suitable places, begins to make cross bar 51 perseverances to bottom offset; In addition, the pull bar 54 of a Jiong shape is established in multiple connection on cross bar 51, and with suitable convenient pulling cross bar 51, and chair back bar 5 upside crossbearers one pole 55 is thought the location around wearing this pull bar 54; Again, positioning seat 7 on this front-wheel pole 2 forms the card ditch 71 of the different height of multistage thereon, and suitable cross bar 51 cards for chair back bar 5 are hung, as shown in Figure 4, this chair back bar 5 blocks the card ditch 71 that is hung on diverse location on the positioning seat 7 with cross bar 51, can make chair back bar 5 form different angles of inclination.

When desire operation vehicle frame folds, make at first the block set 66 of joint portion 6 upwards pass making that tightening latch 63 breaks away from tubule seats 62 in the handle stem 1, make joint portion 6 can give bending (consulting Fig. 5), again handle stem 1 is moved to pressing down, as shown in Figure 6, make handle stem 1 by joint portion 6 and the 2 relative bendings of front-wheel pole, and front-wheel pole 2 can fold backward and shift upwards suitable the giving of seat support pole 4 and pass chair back bar 5 and block top cross bars 51 with fixed plate it on 52 and deviate from the card ditch 71 of positioning seat 7, and then makes chair back bar 5 lose clip to act as a free pendulum shifting state; Again as shown in Figure 7, in rear wheel fulcrum bar 3 tops tendency seat support pole 4, this chair back bar 5 back segment body of rod that promptly bottom is placed in seat support pole 4 by self gravitation, and bend closing backward in seat support pole 4 and front and rear wheel pole 2,3 hypomeres and in the interlock process of seat support pole 4, collapse in the lump between handle stem 1 and the seat support pole 4 by moving downwards with handle stem 1, the integral type of finishing a continuity folds process (after folding as shown in Figure 8).

Again, when desire is launched vehicle frame, then can ride and decide rear wheel fulcrum bar 3 and be fulcrum, multiple handle stem 1 upwards be passed, it can be with each bridge deployed condition of location of recovering to be connected with group.

Claims (1)

1, a kind of integral type collapsible structure of perambulator, constitute the vehicle body support body with handle stem, front-wheel pole, rear wheel fulcrum bar, seat support pole and chair back bar, handle stem and front-wheel pole are in line and join, its joint is established one and is articulated the joint portion that forms by large and small base, suitable make large and small base be socketed on handle stem and front-wheel pole respectively, and make the rear wheel fulcrum bar upper end be articulated in the big base of joint portion; This seat support pole becomes level to articulate due to front and rear wheel pole with two side ends in addition, and seat support pole central sections pivot is tied a Jiong shape chair back bar; It is characterized in that: each is fitted and establishes a fixed plate on this chair back bar both sides shaft, and tool one slotted eye on the fixed plate, a cross bar are stretched with the two ends activity and placed slotted eye, reaches the company's of establishing one spring between cross bar and chair back bar, and the cross bar perseverance is to the groove hole end displacement; This above-mentioned relatively chair back bar cross tube place, rear wheel fulcrum bar top establishes two positioning seats, forms the Ka Gou of the different height of multistage on its pedestal, and the cross bar card of chair back bar hangs over Ka Gouzhong.

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