CN2428033Y

CN2428033Y - Baby carriage with back-gradient segmental regulating device

Info

Publication number: CN2428033Y
Application number: CN 00232945
Authority: CN
Inventors: 蓝贯仁
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-06-02
Filing date: 2000-06-02
Publication date: 2001-05-02
Anticipated expiration: 2010-06-02

Abstract

The utility model relates to a baby carriage with a gradient of backrests segmented regulating device. In the utility model, a vehicle frame is erected with a backrest; both sides of the backrest are respectively provided with a clamping detent seat; the two clamping detent seats are simultaneously controlled by the regulating device and can upwards move and disengage a clamping detent for regulating the gradient of the backrest; the backrest is provided with a draw rod which can be pulled and drew; a pulling rope is arranged under the draw rod and can drive two controlling seats to upwards move. When the controlling seats are respectively positioned under the rotating and swing parts of the two clamping detent seats, the utility model can reach the purposes of handy design and accurate control by the pulling and drawing of the mechanical draw rod and the match of the soft pulling rope.

Description

The perambulator of tool backrest inclination degree segmentation adjusting device

The utility model relates to a kind of perambulator, particularly a kind of perambulator of the tool backrest inclination degree segmentation adjusting device that can average out between lightness and adjustment accuracy.

Perambulator in the past can be provided with some usually and adjust structure for the comfortable space of taking can be provided on vehicle frame, the segmentation adjusting device that the backrest inclination degree is adjusted is exactly the equipment of perambulator indispensability.In order to make backrest be adjusted gradient where necessary, two kinds of patterns are generally arranged, a kind of is directly with stay cord priming clip element, another kind is to come priming clip element with the interlinked mechanism that metallic rod is set up into a rigidity.Can because of being provided with of adjusting device not increase too many as the perambulator of priming means aspect the weight with stay cord, therefore, this type stroller design be light and handy; But as fully with stay cord as priming because the essential longer distance of pile warp of stay cord, so the length of stay cord is oversize can influence the accuracy that priming is controlled.And with the perambulator of rigidity interlinked mechanism as the priming mode, owing to be to connect in the pull bar mode, make that the accuracy of control is preferable in priming, but the weight of perambulator integral body can increase a lot, causes perambulator very inconvenient in mobile, carrying.Therefore, though the perambulator of aforementioned two kinds of tool backrest inclination degree segmentation adjusting devices all has the adjustable effect of backrest angle, can't lightly and between control accurately obtain good balance in design.

The purpose of this utility model is to provide a kind of perambulator that can take into account the tool backrest inclination degree segmentation adjusting device of design lightness and control accuracy simultaneously.

The purpose of this utility model is achieved through the following technical solutions, a kind of perambulator of tool backrest inclination degree segmentation adjusting device is provided, it has a vehicle frame, vehicle frame has two front wheel bar and two rear wheel bar, before homonymy, respectively assemble about one corresponding between rear wheel bar and be positioned at the inboard bar of sitting, sit device one backrest between bar two, backrest has two and is hubbed at two side levers of sitting the bar inboard respectively, the connecting plate of mat two upper and lower settings rank connects a backup plate respectively between two side levers, an outwards outstanding respectively clamping rod on two side levers, the mat one fulcrum shaft braking seat that is pivoted respectively in two rear wheel bar inboards, each braking seat all has one and is positioned at the place ahead and can fulcrum shaft is the swing section of fulcrum swing, between fulcrum shaft and swing section, be provided with a clamping groove that can supply clamping rod to stretch into, clamping groove have one be positioned at the below the slippage section, with a plurality of clip sections that communicate with the slippage section and be positioned at the top, installing one adjusting device on backrest, wherein: described adjusting device has a pull bar that uprightly is installed on the backup plate, the pull bar top is connected with an arm-tie, it is one horizontal that the bottom is provided with, the perforation that can supply a stay cord to pass, and a pull bar bottom and a linked block articulate, and perforation is located on the linked block, stay cord has two traction ends, each traction end is connected with a control seat that is set on the side lever respectively, control seat perseverance is moved down by a spring push, is positioned at the upper top that moves above top braking seat in homonymy braking seat below and the tension member priming but have one on it.

The utility model has the advantages that, utilize the cooperation of a pull bar and a stay cord to come to move on the priming two control seats, with the snap-fit relationship between control braking seat and clamping rod, perambulator can be improved utilize stay cord to make the shortcoming that control produces the control poor accuracy fully, and compare down with the rigidity bindiny mechanism that assembles by connecting rod fully, can have effect in light weight, that design is light and handy, perambulator accurately and between design is lightly averaged out in control.

Be elaborated below by most preferred embodiment and accompanying drawing perambulator to tool backrest inclination degree segmentation adjusting device of the present utility model, in the accompanying drawing:

Fig. 1 is the front perspective view of the utility model preferred embodiment.

Fig. 2 is the part rear perspective view of the utility model preferred embodiment.

Fig. 3 is the part front elevational schematic of the utility model preferred embodiment adjusting device.

Fig. 4 is the enlarged drawing of the utility model preferred embodiment control seat.

Fig. 5 is the adjustment gradient enlarged diagram of the utility model preferred embodiment.

As shown in Figure 1, 2, the perambulator of present embodiment comprises: a vehicle frame 1, a backrest 2, two braking seats 3 and an adjusting device 4.

Vehicle frame 1 has one can be for the handspike 11 that grips, handspike 11 tops have the hand grip portion 111 of a level, each extends a parallel-segment 112 to the front lower place in hand grip portion 111 both sides, on two parallel-segment 112 respectively mat one pivot seat 12 be pivoted mutually with a front wheel bar 13, a rear wheel bar 14 is pivoted at two pivot seats, 12 rears.Respectively assemble a wheel 15 in the bottom of front and rear wheel bar 13,14.Respectively assemble about one corresponding and be positioned at the inboard bar 16 of sitting at 13,14 on the front and rear wheel bar of homonymy again, it is downward-sloping from front to back to sit bar 16.Railing 17 before 112 of two parallel-segment of handspike 11 assemble one again.

Shown in Fig. 2,3, backrest 2 is erected at two of vehicle frame 1 and sits 16 on bar, and it comprises two and is positioned at backup plate 22, two that the side lever 21, of sitting bar 16 inboards is positioned at central authorities and is positioned at the top and is connected side lever 21 and lower connecting plate 24 that the upper junction plate 23 and two of backup plate 22 is positioned at the below and is connected side plate 21 and backup plate 22.Side lever 21 is positioned at sits bar 16 inboards, and its body of rod bottom mat one pivot 25 and contiguous block 29 respectively is pivoted, and contiguous block 29 is installed in sitting on the bar 16 of homonymy.After being pivoted, side lever 21 is able to pivot 25 and is the fulcrum swing.Outwards give prominence to a clamping rod 20 at two side levers 21 respectively by lower position.Backup plate 22 is upright long plate shape bodies, and it has a leading flank 221 and a trailing flank 222, above leaning in the plate body both sides outstanding respectively about one corresponding on pivot ear 223, plate body is by the following pivot ear 224 of outstanding two correspondences of lower portion.The plate body central part is provided with a recessed from front to back long recess 225, long recess 225 tops have a upper shed 226 that is positioned on the trailing flank 222, long recess 225 bottoms enlarge to form a holding part 227, and holding part 227 is given prominence to two guide rods 228 between 224 in twice pivot ears holding part 227 in.Be respectively equipped with one on the sidewall of plate body both sides laterally and be positioned under shed 229 on the trailing flank 222,, be installed with a capping 28 (as shown in Figure 1) forwardly in order to seal holding part 227.

Two upper junction plates, 23 mats, two pivots 26 are hubbed on 223 in the last pivot ear of adjacent side lever 21 and backup plate 22 respectively; Two lower connecting plates 24 also are 224 in the following pivot ears that mat two pivots 27 are hubbed on adjacent side plate 21 and backup plate 22 respectively below upper junction plate 23.Pivot that lower connecting plate 24 and side lever 21 are pivoted pendulum end 241 be provided with one and under shed 229 laterally corresponding wear groove 242, in the guiding projection 243 of wearing the outstanding circle in groove 242 outsides.

Braking seat about 3 is assembled in 2 on rear wheel bar 14 and backrest accordingly, and it has the swing section 32 that a fulcrum 31 and that is positioned at the rear is positioned at the place ahead.Fulcrum 31 mats, one fulcrum shaft 33 and rear wheel bar 14 are pivoted, and swing section 32 can fulcrum shaft 33 be the fulcrum beat.Be provided with one in 32 inboards of fulcrum 31 and swing section and stretch into the clamping groove 34 of engaging for homonymy clamping rod 20, clamping groove 34 comprise one be positioned at the below slippage section 341 and a plurality of communicate with slippage section 341 and be positioned at above clip section 342.

Shown in Fig. 3,4, adjusting device 4 is assembled on the backrest 2, and it has a pull bar 41 that uprightly is installed in backup plate 22 long recess 225.The upper shed 226 of long recess 225 is given prominence on pull bar 41 tops, and is articulated with an arm-tie 42 that is positioned at backup plate 22 trailing flanks 222; Pull bar 41 bottoms are stretched in the holding part 227 of backup plate 22, and are provided with a perforation 431 horizontal, that can supply a stay cord 44 to wear.Pull bar 41 bottoms and a linked block 43 articulate, and bore a hole and 431 be located on the linked block 43.Stay cord 44 both sides have two traction ends, 441, two traction ends 441 pass respectively backup plate 22 under shed 229, lower connecting plate 24 wear groove 242, again the guiding projection by lower connecting plate 24 243 times around.The sheathed respectively one control seat 45 that is subjected to stay cord 44 traction on two side levers 21, control seat 45 are subjected to one to be assembled in springs 46 in the side lever 21 and to shore perseverance and be and move down.Control seat 45 have one can straight line slippage on side lever 21 sliding sleeve portion 451, in the sliding sleeve portion 451 radially outstanding one and the joint portion 452 of guiding projection correspondence 243 about, having one on the joint portion 452, what can bind for the traction end 441 of stay cord 44 is groove 453, and at the outstanding upper top 454 in the position of sliding sleeve portion 451 corresponding braking seats 3, upper top 454 is sitting at the below of braking seat 3.

As shown in Figure 1, 2, under normal condition, two clamping rods 20 that are positioned at two side levers, 21 outsides respectively clips on two braking seats 3 wherein on the clip section 342, therefore the gradient of two side levers 21 can obtain to support, the gradient of the backup plate 22 of upper and lower connecting

plate

23,24 connections of mat simultaneously also can be fixed, so that a fixing gradient to be provided.Cooperate shown in Fig. 2,4,5, in the time will adjusting the gradient of backrest 2, by on lift on the plate 42 priming pull bars 41 and move, move on the pull bar 41 on the linked block of priming simultaneously 43 and move, and then drive on stay cord 44 central parts and move.When stay cord 44 central parts by on when carrying, its both sides traction end 441 can drive simultaneously on the elastic force that control seat 45 that both sides connect overcomes spring 46 and move, so, be positioned on the control seat 45 braking seat 3 belows upper top 454 will on move, move on pushing tow two braking seats 3 simultaneously, so, the clamping rod 20 in side lever 21 outsides just can with slippage section 341 correspondences of clamping groove 34, make whole backrest 2 lack under the state of clip can before and after slippage, after the gradient of backrest 2 is appropriate, loosen arm-tie 42 again.

After arm-tie 42 was loosened, the control seat 45 that is subjected to spring 46 pushing tows can move down, and so, the strength of top braking seat 3 will disappear on script, braking seat 3 also so move down make clamping rod 20 once again clip on braking seat 3 in the suitable clip section 342.

Claims

1, a kind of perambulator of tool backrest inclination degree segmentation adjusting device, perambulator has a vehicle frame, vehicle frame has two front wheel bar and two rear wheel bar, before homonymy, respectively assemble about one corresponding between rear wheel bar and be positioned at the inboard bar of sitting, sit device one backrest between bar two, backrest has two and is hubbed at two side levers of sitting the bar inboard respectively, the connecting plate of mat two upper and lower settings rank connects a backup plate respectively between two side levers, an outwards outstanding respectively clamping rod on two side levers, be positioned at the two rear wheel bar inboards mat one fulcrum shaft braking seat that is pivoted respectively, each braking seat all has one and is positioned at the place ahead and can fulcrum shaft is the swing section of fulcrum swing, between fulcrum shaft and swing section, be provided with a clamping groove that can supply clamping rod to stretch into, clamping groove have one below the slippage section, with a plurality of clip sections that communicate with the slippage section and be positioned at the top, installing one adjusting device on backrest is characterized in that:

Described adjusting device has a pull bar that uprightly is installed on the backup plate, the pull bar top is connected with an arm-tie, the pull bar bottom is provided with a perforation horizontal, that can supply a stay cord to pass, stay cord has two traction ends, each traction end is connected with a control seat that is set on the side lever respectively, the control seat is moved down by a spring push, is positioned at the upper top that moves above top braking seat in homonymy braking seat below and the tension member priming but have one on the control seat.

2, have the perambulator of backrest inclination degree segmentation adjusting device according to claim 1, it is characterized in that: the bottom of pull bar articulates a linked block, and described perforation is located on the linked block.

3, have the perambulator of backrest inclination degree segmentation adjusting device according to claim 1, it is characterized in that: the connecting plate that is positioned at the below on the adjusting device relies on the guiding projection of the outwards outstanding bootable stay cord in position of side lever, and being positioned at an outstanding joint portion, guiding projection below on the control seat, having one on the joint portion, what can bind for the traction end of stay cord is groove.

4, have the perambulator of backrest inclination degree segmentation adjusting device according to claim 1, it is characterized in that: have on the backup plate always to also supplying the ccontaining long recess of pull bar, the long recess top is provided with one for the outstanding upper shed of pull bar, and the bottom has one for the ccontaining holding part of linked block.

5, as the perambulator of tool backrest inclination degree segmentation adjusting device as described in the claim 4, it is characterized in that: be positioned at the linked block both sides in the holding part and be provided with two and limit the guide rod that moves height on the stay cords.