CN2841449Y - Infant's cart frame capable of making mounting appliance automatically rotate - Google Patents

Abstract

The utility model relates to a cart frame of a baby cart, which can be used for mounting a loading appliance. The utility model comprises a skeleton unit and two mounting seats of the loading appliance, wherein the mounting seats are arranged on the skeleton unit and are used for mounting the loading appliance; the skeleton unit comprises two front foot rods and an armrest rod which can be turned and folded relative to the front foot rods. The utility model is characterized in that the skeleton unit also comprises two spacing pins arranged on the front foot rods, and two control pins arranged on the armrest rods; each mounting seat of the loading appliance comprises a rotary control part which is provided with a spacing groove and a control groove; the spacing pins can be inserted into the spacing groove which is provided with closed ends; the control pins can be inserted into the control groove which is provided with two closed ends. When the cart frame of the baby cart is developed and folded, the utility model can be pivoted and swung along the rotation direction through the control pins to impel the mounting seats of the loading appliance. Finally, the loading appliance can be driven to automatically strengthen.

Description

Can make the car skeleton that the perambulator that carrier becomes a full member automatically is installed

Technical field

The utility model relates to a kind of car skeleton of perambulator, particularly relates to a kind ofly setting up for a carrier, and can the transfer car skeleton of the perambulator that folds of preceding foot lever and grab rail.

Background technology

In skill in the past, the folding mode of perambulator can have difference because frame design is different, U.S. shown in Fig. 1,2 the 5th wherein, 921, No. 574 patents of invention are a kind of perambulators 1, above-mentioned perambulator 1 comprises: a wheel carrier 11, the place ahead, a bottom is erected on the wheel carrier 11 and tiltedly stretch toward the back upper place on the top arm-rest frame 12, a carrier framework 13, a pair of carrier framework 13 is erected at a clip mechanism 14,14 ' on the arm-rest frame 12 and a carrier 15 that is erected on the carrier framework 13.This arm-rest frame 12 has the two pivot forks 121 of supporting the leftist side right septum, and the grab rail 122 that can fold or launch in these pivot forks 121, this carrier framework 13 has the frame bar 131 of two contiguous homonymy pivot forks 121 out of the ordinary, the position comprises in the clip mechanism 14 in Fig. 2 left side: one is fixedly mounted in first braking seat 141 on the frame bar 131, one is fixedly mounted in second braking seat 142 of correspondence position on the pivot fork 121, one is installed in these braking seats 141, a clip chamber 143 of 142, clipping block 145 in 144, one with these braking seats 141,142 assembly sets 146 with the rotary way combination, one continues the spring 147 of clipping block 145 tops to clip chamber 144, and the releasing part 148 that clipping block 145 can be pushed to clip chamber 143.And right side clip mechanism 14 ' has first and second braking seat 141,142, links the assembly set 146 of these braking seats 141,142, and one can drive the releasing part 148 that assembly set 146 rotated and made braking seat 141,142 disengaging engagings.

Under the state of clip, the clipping block 145 of left side clip mechanism 14 is to be erected at the clip chamber 143 that is equipped with teeth groove simultaneously, 144, carrier framework 13 can't be swung with respect to arm-rest frame 12, to keep the installation position of carrier 15, and when perambulator 1 when folding, this arm-rest frame 12 is toward back lower place swing, 122 of grab rails are the inside that is accommodated in pivot fork 121, if carrier framework 13 is still kept original installation position with pivot fork 121 at this moment, carrier 15 angles that are erected on the carrier framework 13 will fold and deflection along with pivot fork 121, therefore, press or rotate the releasing part 148 of both sides in needing simultaneously, make the clipping block 145 and second braking seat 142 break away from clip, perhaps two braking seats 141,142 jump out of meshs, just carrier framework 13 and carrier 15 can be adjusted to the position of level, loosen then, make clipping block 145 recover the clip position once again removing the action that presses of part 148.

Though aforementioned U.S. patent of invention case can be by both sides clip mechanism 14,14 ', adjust the installation position carrier 15 reaches folding before perambulator 1 folding after, but these clip mechanisms 14,14 ' complex structure, also need the extra operation of user could change installation position during adjustment, so this invention case is inconvenient in the use.

The utility model content

The purpose of this utility model is that a kind of simple structure is being provided, and the installation position of the carrier that sets up can be promoted the car skeleton of the perambulator of ease of use whereby because the turnover between grab rail and preceding foot lever folds and becomes a full member automatically.

The car skeleton of the utility model perambulator is to set up for a carrier, comprise: a skeleton unit, and two carrier mount pads that are installed on the skeleton unit and set up for described carrier, above-mentioned skeleton unit comprises: the two preceding foot levers, of supporting the leftist side right septum have the grab rail of two linkage sections, and two folding fulcrums that the preceding foot lever of linkage section and homonymy is linked in the mode of folding of can transferring.

Of the present utility model being characterised in that: this skeleton unit comprises that also two are located at respectively on each preceding foot lever and toward the outstanding locating dowel pin of cooresponding carrier mount pad, and two be located at respectively on each linkage section and toward the outstanding control pin of cooresponding carrier mount pad, and these folding fulcrums are to pass one of homonymy carrier mount pad to rotate control portion, with this folding fulcrum is the center, in rotation control portion, has a position-limited trough that supplies locating dowel pin to stretch into, and a control slit that stretches into for control pin, each position-limited trough and control slit all have the closed end at two intervals.

When perambulator is changed between an expanded position and a stowed position, and make that grab rail is that fulcrum turnover is when folding with the folding fulcrum, be resisted against on one of them closed end of control slit driving the control pin, and therefore drive the carrier mount pad along the direction pivot pendulum of becoming a full member, the car skeleton that makes perambulator is no matter when launching or folding, the carrier that is erected on the carrier mount pad all can automatically be set upright by the passing of control pin, so as to promoting the comfort feature that uses.

Description of drawings

Below by most preferred embodiment and accompanying drawing, the car skeleton of the utility model perambulator is elaborated, in the accompanying drawing:

Fig. 1 is the three-dimensional exploded view of the 5th, 921, No. 574 patents of invention of the U.S.;

Fig. 2 is a sectional perspective exploded drawings of this US Patent, mainly shows the structure of two clip mechanisms;

Fig. 3 is the side-looking exploded drawings of a preferred embodiment of the car skeleton of the utility model perambulator, shows the corresponding relation between this a car skeleton and a carrier simultaneously;

Fig. 4 is a partial side view of this preferred embodiment, mainly shows a skeleton unit of this car skeleton and the corresponding relation of a carrier mount pad;

Fig. 5 is a partial perspective view of this preferred embodiment, shows the corresponding relation of this skeleton unit and carrier mount pad equally;

Fig. 6 is the partial side view of a similar Fig. 4, and this grab rail has begun to carry out folding among the figure;

Fig. 7 is the lateral plan of a similar Fig. 3, shows the process that folds of car skeleton; And

Fig. 8 is the partial side view of a similar Fig. 4, and this grab rail has been finished the folding action among the figure.

The specific embodiment

Consult Fig. 3,4,5, one preferred embodiment of the car skeleton 20 of the utility model perambulator is to install for a carrier 21, described carrier 21 has two plates 211 of supporting the leftist side right septum and down giving prominence to, the concrete example of above-mentioned carrier 21 has general seat, hand basket, carries bed, automotive safety chair or the like, and any design that just can set up on the car skeleton 20 of perambulator can.And this car skeleton 20 comprises: a skeleton unit 3, and compartment of terrain, two left and right sides is erected at the carrier mount pad of also installing for carrier 21 on the skeleton unit 35.

Skeleton unit 3 of the present utility model comprises: one has the wheel seat 31 of several wheels 311, compartment of terrain, two left and right sides is the up also past preceding foot lever 32 that retreads and stretch from wheel seat 31 the place aheads, but two are installed in pivot pendulum fulcrum 33 on the wheel seat 31 with preceding foot lever 32 belows in pivot pendulum mode, one grab rail 34, the folding fulcrum 35 of foot lever 32 tops before two modes that grab rail 34 is folded transferring are erected at, one be erected at before the diagonal brace mechanism 30 of 31 of foot lever 32 and wheel seats, two are fixed on the preceding foot lever 32 inboard also locating dowel pins 36 of contiguous top with supporting the leftist side right septum, two control pins 37 that are located on the grab rail 34, and two between left and right every clamping mechanism 38.

Foot lever 32 all has one and is positioned at the top and toward the clip convex 321 of upper process before of the present utility model, and two contiguous tops and outstanding forward fin 322, and this grab rail 34 has two linkage sections 341 of supporting the leftist side right septum and docking with foot lever 32 before the homonymy, and about one to the handrail section 342 that is engaged on these linkage section 341 tops, position below every linkage section 341 is contiguous is the outstanding one axle pivot piece 343 that stretches into 322 of these fins of homonymy distinctly, these control pins 37 just are provided in a side of the position of linkage section 341 inboard contiguous belows, and these folding fulcrums 35 are fin 322 and the axle pivot pieces 343 that pass homonymy, making grab rail 34 can be that fulcrum folds with respect to the bending forward of preceding foot lever 32 with the folding fulcrum 35 of both sides, each clamping mechanism 38 comprises that all one is installed in the sliding control piece 381 of linkage section 341 inner contiguous lower positions, one will slide the compression spring 382 on 381 times tops of control piece, one is set on the linkage section 341 and the sliding sleeve 383 of contiguous top, an and stay cord 384 that is connected 383 of sliding control piece 381 and sliding sleeves, by on draw sliding sleeve 383 and stay cord 384 will slide control to draw on the piece 381, can make sliding control piece 381 and clip convex 321 remove clips, make grab rail 34 can with folding fulcrum 35 be fulcrum forward and down pivot put.

And this diagonal brace mechanism 30 is erected at wheel seat 31 to reach 32 of preceding foot rests, and foot lever 32 can maintain as shown in Figure 3 an expanded position before making, perhaps be transformed into a stowed position by expanded position, above-mentioned diagonal brace mechanism 30 comprises: compartment of terrain, two left and right sides be installed on the pivot pendulum fulcrum 33 and before making foot lever 32 have one up the torque spring 301, two of application force shore 32 of wheel seat 31 and preceding foot levers shore cylinder pressure 302, a diagonal brace assembly 303, and one receives and blocks assembly 304.This receipts card assembly 304 comprises that one is located at the grab 305 on the wheel seat 31, and a hook seat 306 that is located on the preceding foot lever 32.When grab rail 34 is a fulcrum forward and down during the pivot pendulum with folding fulcrum 35, can interlock and remove the buckle state of diagonal brace assembly 303, but because this diagonal brace mechanism 30 is not a feature of the present utility model, applicant also separate case applies for a patent, herein no longer explanation.

Carrier mount pad 5 of the present utility model is corresponding and pivotally is installed in grab rail 34 and the inboard of preceding foot lever 32, comprise: the rotation control portion 51 of a contiguous preceding foot lever 32 and linkage section 341, and carrier installation portion 52 in rotation control portion 51 inboards, it is in the form of annular discs that this rotates control portion 51, has a fulcrum hole 511 that also passes at circle centre position for folding fulcrum 35, one is the center and is located at arc position-limited trough 513 on the clamping face 512 with this fulcrum hole 511, and one be located on the clamping face 512 and be the arc control slit 514 at center with fulcrum hole 511, above-mentioned position-limited trough 513 is to supply the locating dowel pin 36 of homonymy to stretch into, it has one and launches closed end 515, and an interval fold closed end 516, and the length of control slit 514 is greater than position-limited trough 513, it is to supply the control pin 37 of homonymy to stretch into, and have one and launch closed end 517, reach one and fold closed end 518, these fold closed end 516,518 is adjoining, launches closed end 515,517 is also adjoining.And these carrier installation portions 52 all have the slot 521 that a plate 211 for carrier 21 plugs the location, because how carrier 21 plugs and how to dissociate on carrier installation portion 52, are not feature of the present utility model only, and its structure no longer is described in detail in detail herein.

20 on the car skeleton of the utility model perambulator is when an expanded position shown in Figure 3, should before foot lever 32 and grab rail 34 be to be subjected to shoring cylinder pressure 302 and diagonal brace assembly 303 is shored, and keep predetermined start point, this moment these carrier mount pads 5 slot 521 opening is up haply, plate 211 for carrier 21 plugs, and this carrier 21 maintains the position of an approximate horizontal after plugging.Under this state, the locating dowel pin 36 of foot lever 32 inboards is expansion closed end 515 places that are resisted against position-limited trough 513 before being located at, the control pin 37 of being located at linkage section 341 inboards is expansion closed end 517 places that are resisted against control slit 514, just when expanded position, these carrier mount pads 5 are subjected to pressing from both sides the state that can't rotate that fixes on, when carrier mount pad 5 wants inhour to rotate, the expansion closed end 517 of control slit 514 can be controlled stopping of pin 37, and when carrier mount pad 5 will clockwise rotate, the expansion closed end 515 of position-limited trough 513 can be subjected to stopping of locating dowel pin 36.

Consult Fig. 6,7,8, when the car skeleton 20 of the utility model perambulator will fold, at first will draw on the sliding sleeve 383, make the clip convex 321 of sliding control piece 381 and preceding foot lever 32 upper ends break away from clip (referring to Fig. 4), so the folding fulcrum 35 that grab rail 34 just can both sides be fulcrum forward and down pivot put, in the process of pivot pendulum, this diagonal brace assembly 303 can be triped by interlock, and foot lever 32 is able to backward and pivot pendulum down before making.

And in the process of pivot pendulum, the control pin 37 that one end inserts in the control slit 514 can move along with the grab rail 34 of pivot pendulum, and move toward folding closed end 518 by launching closed end 517, when 37 swings of control pin to control slit 514 fold closed end 518 time, the control pin 37 that continues to move will push against carrier mount pad 5, making it is fulcrum with folding fulcrum 35 gradually, and along become a full member a direction pivot pendulum, just allow slot 521 (referring to Fig. 5) towards the direction pivot pendulum of just going up along one, position-limited trough 513 on the carrier mount pad 5 in moving, its fold closed end 516 and be located at before on the foot lever 32 locating dowel pin 36 against the time (as shown in Figure 8), whole perambulator will be transformed into a stowed position, be located at this moment grab 305 on the wheel seat 31 also can dogging on the hook seat 306 of preceding foot lever 32.Just when stowed position, these carrier mount pads 5 also are to be subjected to pressing from both sides the state that can't rotate that fixes on, when carrier mount pad 5 will clockwise rotate, the folding closed end 518 and can be controlled stopping of pin 37 of control slit 514, and when carrier mount pad 5 wants inhour to rotate, the folding closed end 516 and can be subjected to stopping of locating dowel pin 36 of position-limited trough 513.

Identical reason, when the car skeleton 20 of perambulator is transformed into the expanded position of Fig. 3 by the stowed position of Fig. 8, be fulcrum at first with folding fulcrum 35, with the up also past post-tensioning of grab rail 34, remove the dogging state of 306 of grab 305 and hook seats then, when grab rail 34 is the center rotation with folding fulcrum 35, be plugged in the control pin 37 in the control slit 514, can move toward launching closed end 517 by folding closed end 518, when control pin 37 abuts against on expansion closed end 517, continuing backward, the grab rail 34 of pivot pendulum will drive whole carrier mount pad 5 along the direction pivot pendulum of becoming a full member, clockwise rotate in the drawings, when expansion closed end 515 that in position-limited trough 513, rotates and locating dowel pin 36 butts, foot lever 32 and grab rail 34 are just finished the operation of expansion before being somebody's turn to do, and the opening of the slot 521 of these carrier mount pads 5 is haply towards the back upper place after launching.When torque spring 301 and before shoring cylinder pressure 302 and acting on the foot lever 32, and foot lever 32 is forward and up during the pivot pendulum before making, and opening will little by little be set upright towards the slot 521 of back upper place originally, and the carrier 21 that is erected on the carrier mount pad 5 is ajusted haply.

That is to say, the utility model is in the process that preceding foot lever 32 and grab rail 34 are folding or launching, by position-limited trough 513, control slit 514, the configuration relation that locating dowel pin 36 and control pin are 37, can make for carrier 21 stack-mounted carrier mount pads 5 and automatically change setting angle, and and the diagonal brace angle of grab rail 34 cooperate, this design is not only than the U.S. the 5th, 921, No. 574 the patent of invention case is simple, the utility model does not need extra operation in use, just carrier 21 can be set upright, and have effect easy to use, set upright in expansion simultaneously, when folding, carrier 21 can especially tiltedly not dashed forward and to be integral body repeatedly flat-shaped.Certainly, design of the present utility model can be used on the car skeleton of any folding perambulator.

Claims (4)

1. the car skeleton of a perambulator, can set up for a carrier, comprise: a skeleton unit, and two carrier mount pads that are installed on the skeleton unit and set up for described carrier, above-mentioned skeleton unit comprises: the two preceding foot levers, of supporting the leftist side right septum have the grab rail of two linkage sections, and two folding fulcrums that the preceding foot lever of linkage section and homonymy is linked in the mode of folding of can transferring; It is characterized in that:

This skeleton unit comprises that also two are located at respectively on each preceding foot lever and toward the outstanding locating dowel pin of cooresponding carrier mount pad, and two be located at respectively on each linkage section and toward the outstanding control pin of cooresponding carrier mount pad, and these folding fulcrums are to pass one of homonymy carrier mount pad to rotate control portion, with this folding fulcrum is the center, in rotation control portion, has a position-limited trough that supplies locating dowel pin to stretch into, and a control slit that stretches into for control pin, each position-limited trough and control slit all have the closed end at two intervals.

2. the car skeleton of perambulator according to claim 1, it is characterized in that: when baby parking stall during at expanded position, this locating dowel pin is one of them closed end that is resisted against position-limited trough, the control pin also is to be resisted against on one of them closed end of control slit, whereby carrier mount pad folder is fixed on the state that can't rotate, and when baby parking stall during at stowed position, this locating dowel pin is to be resisted against on the another one closed end of position-limited trough, the control pin also is to be resisted against on the another one closed end of control slit, whereby carrier mount pad folder is fixed on the state that can't rotate.

3. the car skeleton of perambulator according to claim 1 is characterized in that: these carrier mount pads comprise that also a position rotating control portion carrier installation portion inboard and that install for carrier.

4. the car skeleton of perambulator according to claim 1, it is characterized in that: the position of these contiguous tops of preceding foot lever has two outstanding fins forward, and each linkage section below of this grab rail distinctly has the axle pivot piece that stretches between the homonymy fin, and these folding fulcrums are fin and the axle pivot pieces that pass homonymy.

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