CN2664967Y

CN2664967Y - Infant's go-cart with angle adjustable chair back

Info

Publication number: CN2664967Y
Application number: CN 200320121890
Authority: CN
Inventors: 罗吉安
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-11-27
Filing date: 2003-11-27
Publication date: 2004-12-22
Anticipated expiration: 2013-11-27

Abstract

The utility model discloses a buggy that the angle of the backrest can be adjusted, which comprises two supporting units arranged in parallel, a group of seat and backrest unit arranged between the supporting units, and two adjusting and location devices which are sleeved respectively on back supporting tubes of the supporting units and can be hinged with the backrest of the seat and backrest unit. The supporting unit is provided with a back supporting tube, the seat and backrest unit is provided with a backrest. Every adjusting and location device is provided with a base, a pressing base that can be vertical to the back supporting tube and move relatively to the base, and an elastic element that is arranged between the base and the pressing bases, and is used to push the pressing base permanently away from the base.

Description

The child stroller of chair back adjustable angle

Technical field

The utility model relates to a kind of child stroller, particularly relates to the whole child stroller of a kind of chair back tilt adjustable.

Background technology

But present child stroller mostly is designed to the chair back of child stroller the pivot pendulum to be tilted to adjust and lies by angle, and textural, the adjustment registration device that needs design to match fixes adjusted angle of inclination, for example: the Taiwan patent gazette announces the 236257th, 215652 and No. 503875 cases or the like, though aforesaid design has possessed the basic effect of adjusting the angle of inclination, yet, there is the disappearance that number of elements is on the high side and operating process is inconvenient mostly in the adjustment registration device of this type, and the utility model is improved for the adjustment registration device of simplifying this type.

The utility model content

The purpose of this utility model be provide a kind of adjust registration device to locate chair back adjustment with one after the child stroller of chair back adjustable angle of angle, and adjust the advantage that registration device has simple structure and is convenient to manipulate.

The utility model is to implement like this: a kind of child stroller of chair back adjustable angle, comprise: two support units that be arranged in parallel, one by unit and two adjustment registration devices, each support unit has a preceding support tube and a rear supporting tube of ramp interface, leaning unit is to be assembled between support unit, and have a seat support and can be relatively the chair back of this seat support pivot pendulum, adjusting registration device is the chair back pivot joint that is set with on the rear supporting tube of support unit and can supplies leaning unit, it is characterized in that: each is adjusted registration device and has a pedestal, one vertically rear supporting tube ground relative to pedestal move by wedge, and one be located at pedestal and by between wedge, and in order to will be by the elastic element of the permanent pushing tow of wedge away from pedestal, but and a forced section that has the opposition side that is located at rear supporting tube respectively by wedge and a repetitiousness break away from ground and rear supporting tube against the location division of locating.

Be elaborated below by the child stroller of the drawings and the specific embodiments to the utility model chair back adjustable angle.

Description of drawings

Fig. 1 is the block diagram of a preferred embodiment of the child stroller of the utility model chair back adjustable angle;

Fig. 2 is the three-dimensional exploded view that registration device is adjusted in one of preferred embodiment;

Fig. 3 is the cross section view of the adjustment registration device of preferred embodiment, illustrates that a location division of adjusting registration device is to be resisted against on the rear supporting tube;

Fig. 4 is the cross section view of similar Fig. 3, illustrates that the location division of adjusting registration device is not resisted against on the rear supporting tube; And

Fig. 5 is the lateral plan of preferred embodiment, illustrates to adjust registration device to adjust the state at the angle of inclination of a chair back.

The specific embodiment

As shown in Figure 1, a preferred embodiment of the child stroller of the utility model chair back adjustable angle comprises: two support units 21, one first skeleton unit 22, one second skeleton unit 23, a leaning unit 3 and two are adjusted registration device 4.Support unit 21 is arranged in parallel about being, and has a preceding support tube 211 and a rear supporting tube 212 that tilts to be articulated respectively.First skeleton unit 22 then is provided in a side of between support unit 21 bottom sides, 23 of second skeleton units are to be installed on the rear supporting tube 212, first linkage unit 22 has the connecting piece that number connects the back and front supporting pipe 211,212 of support unit 21 respectively, and to cooperate with the interlock of first and second skeleton unit 22,23 be known techniques in integrated support unit 21, and non-the utility model improvement emphasis no longer describes in detail.

Leaning unit 3 is to be assembled in 21 of support units, and has a seat support 31 and a chair back 32 of this seat support 31 pivots pendulum relatively.This chair back 32 comprises that a pad 321, is hubbed on the linkage unit 22 and in order to supporting the chair back rack 322 of the chair back 32, and two traces 323 that backward extended by chair back rack 322 sides respectively.

As Fig. 1 and shown in Figure 3, rear supporting tube 212 is for Ju shape section and have a tube body 213, this tube body 213 has a forward and backward leading flank 214 that be arranged in parallel and a trailing flank 215, and having more one, each rear supporting tube 212 is installed on the leading flank of tube body 214 flat part 216, each rear supporting tube 212 comprises that several are located at the knock hole 217 on the flat part 216 at interval, and flat part 216 is corresponding each knock hole 217 position, and forms an oblique surface 218 in knock hole 217 top sides.Adjusting registration device 4 is to be set with on the rear supporting tube 212 of support unit 21, and can articulate for the chair back 32 of leaning unit 3, for convenience of description, below only with single adjustment registration device 4 expression is described.

As shown in Figures 2 and 3, adjust registration device 4 have a pedestal 41, vertically rear supporting tube 212 ground relative to pedestal 41 move by wedge 42, and one be located at pedestal 41 and by 42 of wedges, and in order to will be by the elastic element 43 of wedge 42 permanent pushing tows away from pedestal 41.

Pedestal 41 has a base plate 411, two mutually abreast by base plate 411 extended side plates 412, one is parallel to the top board 413 of base plate 411 generally, an and contiguous block 414 that outwards is convexly equipped with by the surface of top board 413, and base plate 411, biside plate 412 and top board 413 be define a up/down perforation jointly push space 415, can be along vertical rear supporting tube 212 length directions and repetitiousness moves in this pushes space 415 by wedge 42, and top board 413 has more the aforementioned assembly mouth 416 of pushing space 415 of a connection, base plate 411 is provided with a location ring wall group 417 in corresponding assembly mouth 416 positions, contiguous block 414 is to be used for articulating for trace 323 rod ends of the chair back 32, and two rod ends of trace 323 are articulated in respectively on chair back rack 322 and the contiguous block 414.

Cooperate assembly mouth 416 shapes and have one by wedge 42, but and be located at the forced section 421 of opposition side of rear supporting tube 212 and a repetitiousness respectively and break away from the location division 422 of the flat part 216 of ground and rear supporting tube 212 against the location, and two is mutually parallel and connect the connecting portion 423 of forced section 421 and location division 422, two connecting portions, 423 boundaries are shaped as a sliding space 424 that can supply rear supporting tube 212 to pass through, location division 422 by wedge 42 has a substrate 425 and a clipping block 426 of knock hole 217 projections of substrate 425 past flat parts 216 thus, clipping block 426 has more an inclined thrust surface 427 that is formed at away from substrate 425 positions, and this inclined thrust surface 427 is in order to the oblique surface 218 on the flat part 216 that cooperates aforementioned rear supporting tube 21.

Elastic element 43 is to be a spring in present embodiment, only be not limited to spring, also can be the elastic element of other kinds, and an end of this elastic element 43 promptly is to be positioned on the location ring wall group 417, the other end then is on the side that stays on by the location division 422 of wedge 42, so as to releasing toward base plate 411 directions away from pedestal 41 by wedge 42 is permanent.

As Fig. 3, Fig. 4 and shown in Figure 5, when stressed and when being pressed into toward rear supporting tube 212 directions by the forced section 421 of wedge 42, each location division 422 of pressing wedge 42 can break away from rear supporting tube 212, at this moment, clipping block 426 on the location division 422 is to deviate from (seeing Fig. 4) by cooresponding knock hole 217 on the flat part 216, adjustment registration device 4 can be slided from top to bottom along the length direction of rear supporting tube 212, in sliding process, each adjusts the chair back rack 322 that registration device 4 can drive the chair back 32 by trace 323, and the chair back 32 that makes leaning unit 3 is seat support 31 pivots pendulum adjustment angle relatively.Then, when the forced section 421 of pressing wedge 42 is not stressed, the elastic force of elastic element 43 can be pressed this location division 422 of wedge 42 and oppositely release, location division 422 by wedge 42 is resisted against on the flat part 216 of rear supporting tube 212 (seeing Fig. 3), at this moment, adjust i.e. rear supporting tube 212 slips relatively of registration device 4.

Furthermore, when the chair back is when down adjusting near the position of top, be to be pressed into along vertical rear supporting tube 212 length directions by wedge 42, make adjust registration device 4 can past smoothly slippage, drive the chair back 23 to adjust the angle of inclination, otherwise, if the chair back 32 is when being adjusted from lower to upper, because the location division 422 by wedge 42 is the inclined thrust surfaces 427 that are provided with the oblique surface 218 that cooperates rear supporting tube 212 at clipping block 426, so need not be pressed into especially by wedge 42 makes clipping block 426 break away from cooresponding knock hole 217 again, but with up application of force promotion a little of the chair back 32, aforementioned clipping block 426 can cooperate oblique surface 218 by inclined thrust surface 427, easily by breaking away from the cooresponding knock hole 217, at this moment, adjust registration device 4 can along rear supporting tube 212 up slippage to adjust the angle of inclination of the chair back 32.

Special version, adjusting registration device 4 is to cooperate the flat part 216 of rear supporting tube 212 that direction is set, and have different set-up modes, that is, when flat part 216 is the left and right sides of body 213 on one of them time that are arranged at rear supporting tube 212, also be along with being formed on the opposition side of flat part 216 by the forced section 421 of wedge 42, moreover, the utility model is not restriction so that flat part 216 to be set, and knock hole 217 also is formed directly on the body 213 of rear supporting tube 212.

The principal character of the child stroller of the utility model chair back adjustable angle, promptly be to be to adjust registration device 4 only to assemble and form by trigram spare, number of elements is reduced effectively, only need in the operation simultaneously to be pressed into toward rear supporting tube 212 directions and get final product by wedge 32, the utility model can reach predetermined effect and purpose really, so very practical really and progressive.

Claims

1, a kind of child stroller of chair back adjustable angle, comprise: two support units that be arranged in parallel, one by unit and two adjustment registration devices, each support unit has a preceding support tube and a rear supporting tube of ramp interface, leaning unit is to be assembled between support unit, and have a seat support and can be relatively the chair back of this seat support pivot pendulum, adjusting registration device is the chair back pivot joint that is set with on the rear supporting tube of support unit and can supplies leaning unit, it is characterized in that: each is adjusted registration device and has a pedestal, one vertically rear supporting tube ground relative to pedestal move by wedge, and one be located at pedestal and by between wedge, and in order to will be by the elastic element of the permanent pushing tow of wedge away from pedestal, but and a forced section that has the opposition side that is located at rear supporting tube respectively by wedge and a repetitiousness break away from ground and rear supporting tube against the location division of locating.

2, the child stroller of chair back adjustable angle according to claim 1, it is characterized in that: rear supporting tube is rectangular cross section and a forward and backward leading flank that be arranged in parallel and a trailing flank, each rear supporting tube has several and is located at knock hole on the leading flank at interval, by the location division of wedge have a substrate and thus substrate toward the clipping block of knock hole projection.

3, the child stroller of chair back adjustable angle according to claim 1, it is characterized in that: rear supporting tube is rectangular cross section and has a tube body, this tube body has a forward and backward leading flank that be arranged in parallel and a trailing flank, and each rear supporting tube has more a flat part that is installed on the leading flank of tube body, each rear supporting tube has several and is located at knock hole on the flat part at interval, by the location division of wedge have a substrate and thus substrate toward the clipping block of knock hole projection.

4, as the child stroller of chair back adjustable angle as described in the claim 3, it is characterized in that: corresponding each position of positioning hole of flat part forms the oblique surface in the knock hole top side, clipping block has one and is formed at away from substrate position, and in order to the inclined thrust surface of the oblique surface on the flat part that cooperates rear supporting tube.