CN2528680Y - The backrest automatically follows the folded stroller - Google Patents

Abstract

The utility model discloses a perambulator contains: a framework, two clamping seats, a handrail frame, a backrest frame, a lying adjusting mechanism and a drawing mechanism; when the baby carriage is folded, the back frame is drawn forwards by the drawing mechanism, so that the tilting clamping rods on the lying adjusting mechanism automatically cross the inclined planes of the clamping grooves and are folded between the rods on two sides of the armrest frame. Therefore, the backrest frame of the utility model can be automatically folded along with the baby carriage.

Description

The backrest automatically follows the folded stroller

【Technical field】

The utility model relates to a baby carriage, in particular to a baby carriage with a backrest that can be folded following.

【Background technique】

In the past, in the design of baby carriages, a seat frame, a backrest frame and an armrest frame were generally installed on a frame, and a seat cushion for a child to ride was erected between the seat frame and the backrest frame. In order to make the child ride more comfortable, the backrest The frame is usually configured to change the lying angle. Although the design of this conventional baby carriage provides a comfortable space for riding, when the baby carriage is being folded, although its skeleton, seat frame and armrest frame can all be linked together, the clip between the backrest frame and the seat frame The corner relationship will remain in the state before folding, that is to say, the folding action of the stroller cannot be linked with the folding of the backrest frame. Therefore, in the past, the backrest frame must be moved forward to the front before the stroller is folded. Orientate the position of the stroller, and then fold it, or after the stroller is folded, add a folding operation of the backrest frame, which will cause inconvenience in folding. Therefore, how to make the stroller fold regardless of the backrest The frame can be folded at any position, which is a subject to be improved in the design of previous baby carriages.

【Content of utility model】

The purpose of the utility model is to provide a baby carriage with a backrest that can be folded automatically following the folding action of the baby carriage, so as to improve the convenience of folding.

The baby stroller of the present utility model comprises: a skeleton, an armrest frame, a positioning mechanism, a backrest frame, and a supine adjustment mechanism which is installed on the backrest frame and can adjust the lying angle of the backrest frame, wherein the skeleton It has two front foot units, two rear foot bars, and a surrounding frame erected above the two front foot units, and the armrest frame is pivotably erected between the surrounding frames of the skeleton by means of two pivots, and the armrest frame has two left and right corresponding side bars , and two support seats located at the bottom of the side bar and can rest on the rear foot bar of the frame when the stroller is unfolded. state, and the backrest frame is installed between the rods on both sides of the two armrest frames; it is characterized in that the baby carriage also includes: two left and right corresponding locking seats pivoted on the inside of the rear leg rods of the frame and a guide Pulling mechanism, wherein the catch seats are pivotally arranged on the rear foot frame in a pivotable manner by a pivot respectively, and there is a catch protrusion on the catch seat toward the bottom end of the armrest frame, and a catch protrusion on the catch protrusion There is a concave expansion positioning slot on the top, and several card slots arranged from front to back, each card slot has an inclined surface in front, and the positioning mechanism has a locking block that is constantly pushed down , the lying adjustment mechanism has a tilting lever that can be controlled to be locked in one of the slots of the slot or out of the slot, and the pulling mechanism is connected between the frame and the backrest .

When the stroller is unfolded, the frame seat of the armrest frame leans against the rear foot bar of the frame, and at this time, the tilt lever of the reclining adjustment mechanism is positioned in one of the card slots of the card seat; when the card of the positioning mechanism When the catch block is disengaged from the positioning slot, the stroller can be folded, and the pulling mechanism can pull the backrest frame forward through the traction of the relatively forward displacement part of the frame. The inclined surface in front of the card slot is automatically moved forward and folded.

【Description of drawings】

The following is a detailed description of the baby carriage that the backrest frame of the present invention can automatically follow and fold through preferred embodiments and accompanying drawings. In the accompanying drawings:

Fig. 1 is a perspective view of a preferred embodiment of the stroller of the present invention, in which a backrest frame of the stroller is located at the front position.

Fig. 2 is a side view of the preferred embodiment, showing the state in which the back frame is reclined from the front position to the middle position.

Fig. 3 is a partial perspective exploded view of the preferred embodiment, showing the relative relationship between a latch seat and a latch block of the stroller.

Fig. 4 is an incomplete side sectional view of the preferred embodiment, showing the corresponding relationship between the armrest frame of the stroller and a positioning mechanism.

Fig. 5 is an incomplete rear perspective view of the preferred embodiment, showing the corresponding relationship between a backrest frame of the stroller and a reclining adjustment mechanism.

FIG. 6 is an enlarged three-dimensional combined view showing the enlarged state of some components in FIG. 1 .

Fig. 7 is a side view similar to Fig. 2, showing the back frame of the stroller in the rear position.

Fig. 8 is a side view of the preferred embodiment, showing that the stroller has begun to be folded.

FIG. 9 is an incomplete perspective view similar to FIG. 3 , showing the corresponding relationship between the latching block and the latching seat when the latching block of the stroller is about to disengage from the latching position.

Fig. 10 is a side view similar to Fig. 8, showing the state of the backrest converted from the rear position to the front position when the stroller is folded.

Fig. 11 is an incomplete perspective view of the preferred embodiment, showing the locking relationship between the positioning mechanism and the locking seat when the stroller is in a folded state.

Figure 12 is a side view similar to Figure 8, showing the stroller in a fully collapsed state.

【Detailed ways】

Referring to Figures 1 and 2, the stroller of this embodiment includes: a skeleton 1, two left and right oppositely arranged latch seats 2 pivotally mounted on the inside of the skeleton, and an armrest frame pivotally mounted on the two skeletons 1 3. Two left and right positioning mechanisms 4 correspondingly installed on the armrest frame 3, a backrest frame 5 erected between the two latch seats 2, a supine adjustment mechanism 6, and a pulling mechanism 7.

Described skeleton 1 has two left and right corresponding front foot units 11, two rear foot bars 12, a surrounding frame 13, a chassis bar 14 installed between two front foot units 11 and two rear foot bars 12, four groups are respectively installed in front foot unit 11, The wheel 15 at the bottom of the rear foot bar 12 and a seat plate 16 erected between the rear foot bar 12 and the front foot unit 11 . Wherein the front foot unit 11 includes a front foot bar 111 located below, a shaft pivot seat 112 located above the front foot bar 111 and pivoted by the rear foot bar 12 , and a pivot seat 112 above the shaft pivot seat 112 that can be pivoted. Wai rod 113, and the surrounding frame 13 includes a front wall section 131 transversely erected in front of the wall bar 113, two side wall sections 132 extending from the left and right sides of the front wall section 131 to the rear, and from the front wall section 132. A pivotal section 133 extending upward from the rear end of the side wall section 132 .

As shown in FIG. 3 , the latching seat 2 is pivotably installed on the inner side of the two rear legs 12 of the frame 1 , and each latching seat 2 has a pivot portion 21 located below and matching with the rear leg rods 12 . An elongated connecting portion 22 extending forward and upward from the pivot portion 21, an enlarged locking protrusion 23 located above the connecting portion 22, and a first pivot 24 and a second pivot 25, wherein The first pivot 24 pivotally connects the rear leg bar 12 to the pivot portion 21 , and the second pivot 25 pivotally connects the pivot portion 21 to the chassis rod 14 to form two pivotable positions. The enlarged locking protrusion 23 includes: an unfolded positioning slot 231 with an opening facing upwards and located in front, a folding positioning slot 232 with an opening facing downwards, and an arc connecting surface 233 connected between the two positioning slots 231, 232, And a front draw-in slot 234, a middle draw-in slot 235, a rear draw-in slot 236 positioned at the rear of the deployment positioning slot 231 and arranged around the fulcrum hole 230, and an outlet end 239 positioned at the front of the front draw-in slot 234, each draw-in slot 234, 235, 236 all have a push-out surface 237 at the front and an upright retaining surface 238 at the rear.

The armrest frame 3 has a gripping rod 31 spanning, two hollow side rods 32 correspondingly extending downward from the left and right sides of the gripping section 31, and two rest seats 33 respectively fixed at the bottom ends of the rods 32 on both sides. And two left and right correspondingly connect the third pivot 34 that pivots the rods 32 on both sides and the pivotal section 153 on the same side on the surrounding frame 15 together. After pivoting, the whole armrest frame 3 can rotate forward and backward with the third pivot 34 swing, wherein the bottom ends of the support seats 33 are respectively provided with a support groove 331 facing forward and backward with the opening facing downward. Above the two rear foot bars 12 of the frame 1.

Referring to Figures 1, 3, and 4, the positioning mechanism 4 is installed on the two side rods 32 of the armrest frame 3 correspondingly on the left and right sides, and each mechanism 4 has: a set of sliding control sleeves 41 located above the side rods 32 , an upper connecting block 42 installed inside the side bar 32 and driven by the sliding control sleeve 41, a lower connecting block 43 arranged at intervals with the upper connecting block 42, a steel cable 44 connecting the upper and lower connecting blocks 42, 43, A push-up spring 45 that constantly pushes the lower connecting block 43 downward, and a set of locking blocks 46 that are arranged on the side bar 32 and are linked with the lower connecting block 43, wherein the locking block 46 has a The positioning card portion 461 protrudes toward the latch seat 2 . When the stroller is unfolded, pushed by the supporting spring 45, the locking block 46 moves down so that the positioning locking part 461 is locked in the expansion positioning groove 231 of the locking seat 2, so that the two are separated from the locking position. To catch is to overcome the elastic force of the top support spring 45 and pull the sliding control sleeve 41 upwards, so that the lower connecting block 43 and the locking block 46 can be moved up by means of the steel cable 44.

Referring to Figures 1, 5, and 6, the backrest frame 5 is erected between two latch seats 2, and has a backrest bar 51, an upper link 52 spanning the backrest bars 51, a lower link 53, and two Support the fourth pivot 54 that pivots the backrest bar 51 between the fulcrum holes 230 of the two latching seats 2 . Wherein the backrest bar 51 has two left and right upright corresponding side bar sections 511, at the bottom of the bar sections 511 on both sides, a fourth pivot 54 and the same side of the catch seat 2 and the side bar 32 are pivoted to form a swinging structure. fulcrum.

The recline adjustment mechanism 6 is installed on the back frame 5 to adjust and position the recline angle of the back frame 5 . The inner rotating part 61, a puller 62 installed in the central part of the rotating part 61, a tilting lever 63 spanning between the two latch seats 2, and a link between the two rotating parts 61 and the tilting lever 63 Linkage piece 64, and an elastic piece 65 that constantly pulls down the tilting lever 63. The rotating member 61 includes two fulcrum ends 611 located at opposite ends and a bent portion 612 located inside the fulcrum ends 611 , and the fulcrum ends 611 are respectively inserted on the rod segments 511 on both sides to form a fulcrum for rotation. With reference to Fig. 3, when the stroller is in the unfolded state, under the action of the elastic member 65, the tilting lever 63 moves down and is locked in one of the slots 234, 235, 236 on the two locking seats 2, and when When the user pulls the trigger 62 backward, the rotating member 61 will tilt backward and upward with the two fulcrum ends 611 as the fulcrum, and at the same time overcome the elastic force of the elastic member 65 to drive the tilting lever 63 to move upward and break away from the locking slot. 234, 235, 236.

The pull mechanism 7 has two pull belts 71 corresponding to the left and right, and each pull belt 71 is connected between the side wall section 132 of the same side frame 13 and the side bar portion 511 of the back bar 51, and is used for simultaneously pulling Pull the backrest frame 5 forward.

Referring to Figures 1, 2, and 3, when the baby carriage is unfolded and the backrest frame 5 is positioned at the front position, the locking blocks 46 of the two positioning mechanisms 4 are pushed downwards and positioned in the unfolding positioning groove 231 of the locking seat 2 on the same side. At the same time, in front of the outlet end 239, the two support grooves 331 at the bottom of the armrest frame 3 are also respectively erected above the same side rear foot bar 12 to form a position. In the front draw-in slot 234 of the front draw-in slot 234, the entire backrest frame 5 will not shift backward when subjected to the rear pressure, and the installation angle of the backrest frame 5 can be positioned. When drawing and pulling mechanism 7 presents the state of relaxation.

Referring to Figures 3, 5, and 7, when the back frame 3 is about to lie on its back, first pull the puller 62 upwards and backwards to overcome the elastic force of the elastic member 65, and let the connecting member 64 drive the tilting lever 63 After removing the front draw-in slot 234, the entire backrest frame 5 can be placed in the middle draw-in slot 235 or in the rear draw-in slot 236 after the two fourth pivots 54 are the fulcrums. Figure 7 shows the state of being positioned in the rear draw-in slot 236. At this time, the pulling mechanism 7 is in a stretched state.

Referring to Figures 4, 8, and 9, when the baby stroller of this embodiment is being folded, the sliding control blocks 41 of the two positioning mechanisms 4 are first lifted up to drive the lower locking block 46 to overcome the elastic force of the push spring 45 and move upward. Break away from the originally positioned expansion positioning slot 231, then the top grip bar 31 swings forward with the third pivot 34 as a fulcrum. When swinging, the positioning part 461 of the locking block 46 moves forward and downward against the arc connecting surface 233 when swinging. And the backrest frame 5 that tilts backward originally can shift forward at this moment because of the pulling of the pulling mechanism 7, because the front of the rear draw-in groove 236 is a push-pull surface 237 when shifting, therefore, the power of pulling Allow the tilting lever 63 to enter the middle slot 235 forward along the push surface 237, then pass through the push surface 237 in front of the middle slot 235 and the front slot 234, and finally approach the outlet end 239. When the clamping rod 36 is close to the outlet end 239, since the positioning clamping portion 461 on the clamping block 46 is lifted up and relatively moved forward without blocking function, the tilting clamping rod 63 can be relatively moved forward by the outlet end 239 Detach from the latch seat 2. That is to say, due to the pulling of the pulling mechanism 7 , the backrest frame 5 can automatically lean forward between the rods 32 on both sides of the armrest frame 3 .

Referring to Figures 10, 11, and 12, when the top of the armrest frame 3 of the stroller continues to be folded forward to the frontmost position, the positioning card parts 461 on the two latching blocks 46 are also rotated at the same time to correspond to the folding positioning of the latching seat 2 Groove 232, and be subjected to the push-pull described folding positioning groove 232 of internal support spring 45, the folding action of baby carriage like this has just been finished.

After folding, not only the skeleton 1 and the armrest frame 3 of the stroller can be folded together, but also the back frame 5 can be folded together, so that the folding of the stroller is more convenient.

In the same way, when the stroller of this embodiment is unfolded, first pull up the sliding control blocks 41 of the positioning mechanisms 4 on both sides to drive the locking blocks 46 to move up along the side bars 32, so that the positioning locking parts 461 are released from the locking position. Fold the positioning groove 232, and then the armrest frame 3 can be pivoted upwards and backwards, that is, it is sequentially switched from Figure 12 to Figure 10 and Figure 8, and finally unfolded to the state of Figure 2, in the state of Figure 2, The positioning catch portion 461 of the locking block 46 will be restored to be positioned in the unfolding positioning groove 231 of the locking seat 2. When the lying angle of the backrest frame 5 is to be adjusted, the puller 62 is also swiveled backward so that the bottom end When the linked tilting lever 63 moves upward, the entire backrest frame 5 can be swung backwards to an appropriate position and then released. 234, the middle card slot 235 or the rear card slot 236, to locate the inclination angle of the back frame 5.

As can be seen from the above description, when the aforementioned design of the utility model is folded, the surrounding frame 13 and the surrounding rod 113 will relatively move forward due to the folding action of the baby carriage. It is connected on the surrounding frame 13, so it is drawn forward by the pulling mechanism 7, and the design of each draw-in groove 234, 235, 236 and outlet end 239 on the catch seat 2 can allow the backrest frame 5 to be located no matter which position All kinds of inclination angles can be automatically folded forward between the rods 32 on both sides of the armrest frame 3, so that the folding action of the baby carriage can be completed at one time.

Claims (9)

1. a back rest can be followed the perambulator of folding automatically, and it comprises:

One skeleton has two forward foot in a step unit, two back foot levers and are erected at the frame that encloses on two forward foot in a step unit;

One arm-rest frame borrows two pivots pivotally to be erected at enclosing between frame of skeleton, and it has the cooresponding side lever in two left and right sides, but and two positions frame in the side lever bottom and when perambulator launches lean against frame seat on the back foot lever of skeleton;

One location mechanism is installed on the side lever of arm-rest frame, the position when launching in order to the location arm-rest frame;

One back rest is installed between two side levers of two arm-rest frames; And

One faces upward the adjusting mechanism of lying, and is installed on the back rest, in order to adjust the lying angle of back rest;

It is characterized in that: this perambulator more comprises: the corresponding braking seat and that is hubbed on the back foot lever inboard of the skeleton mechanism that is pulled about two, wherein but these braking seats are to borrow a pivot to be pivot pendulum mode respectively to be hubbed on the rear leg, on braking seat, has a clip teat towards the grab rail bottom position, described clip teat is offered a recessed expansion positioning groove, and several draw-in grooves that arrange to be provided with after by forward direction, all has a dip plane that is positioned at the place ahead on each draw-in groove, and described detent mechanism has a perseverance down by the clipping block of pushing tow, but the described adjusting mechanism of lying of facing upward has a clip at braking seat wherein in the draw-in groove or break away from the pendulum kelly that inclines of described draw-in groove, and the mechanism that is pulled is attached between skeleton and back rest.

2. back rest can be followed the perambulator of folding automatically according to claim 1, it is characterized in that: described back rest has a back support bar, on back support bar, has the cooresponding side lever section in two left and right sides, and the described adjustment machine of lying of facing upward also has: an intersegmental revolving part, of two side levers that is erected at back support bar is installed in pulls that piece, is attached at revolving part and the moving part of the pendulum kelly that inclines on the revolving part, and one gives the pendulum kelly spring element of application force down that inclines.

3. back rest can be followed the perambulator of folding automatically according to claim 1, it is characterized in that: each draw-in groove rear of described braking seat all has the block face that the pendulum kelly moves after improper that prevents to incline.

4. back rest can be followed the perambulator of folding automatically according to claim 1, it is characterized in that: also have on the described braking seat and launch to decide the folding positioning groove that groove is provided with at interval, and an arc that is engaged between two positioning grooves connects by face, under perambulator was collapse state, the card division, location of described clipping block was to be fastened in the folding positioning groove.

5. back rest can be followed the perambulator of folding automatically according to claim 1, it is characterized in that: described detent mechanism has: an axle sleeve at the sliding control piece on the side lever of arm-rest frame, be installed in connect on the side lever in-to-in one piece, one and on connect following that the block gap is provided with and connect piece, be connected a upper and lower cable wire that connects piece, and one give down and connect the move down spring of shoring of application force of piece, wherein connects piece and and clipping block interlock down.

6. back rest can be followed the perambulator of folding automatically according to claim 1, and it is characterized in that: the described mechanism that is pulled has the cooresponding band that is pulled in two left and right sides.

7. back rest can be followed the perambulator of folding automatically according to claim 1, it is characterized in that: when skeleton when folding, the described frame that encloses belongs in the described skeleton position of displacement forward relatively, and the mechanism that is pulled is attached at enclosing on the frame of skeleton.

8. back rest can be followed the perambulator of folding automatically according to claim 1, it is characterized in that: each draw-in groove is round a fulcrum hole setting on the described braking seat, and described arm-rest frame also has about two corresponding and pass the pivot of fulcrum hole, two pivots respectively the axle pivot at the side lever of homonymy and the clip teat of braking seat.

9. can follow the perambulator of folding automatically as back rest as described in the claim 8, it is characterized in that: also have an exit end that is positioned at each draw-in groove the place ahead and is provided with around described fulcrum hole on the clip teat of described braking seat, described exit end is adjacent to and launches the positioning groove rear side.

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