CN100450848C

CN100450848C - Foldable bottom rack for baby carriage

Info

Publication number: CN100450848C
Application number: CNB2006101002724A
Authority: CN
Inventors: 曼努埃尔·珍妮·圣玛丽亚
Original assignee: Jean S A
Current assignee: Jean S A
Priority date: 2005-07-07
Filing date: 2006-07-06
Publication date: 2009-01-14
Anticipated expiration: 2026-07-06
Also published as: ES1060703Y; ES1060703U; CN1891550A

Abstract

This foldable chassis for baby carriages comprises two rear wheels (1) and (2), a front rolling support (3), and a U-shaped handlebar (4) being at the end of each of its branches (5) and (6) fitted to a respective lateral member (7) and (8), each of said lateral members being at its upper end (9) linked in a pin-jointed connection to a respective armrest (10) and (11), each of said armrests being in its turn linked in a pin-jointed connection (12) to the respective branch of the handlebar. This chassis is characterized in that each of the lateral members (7) and (8) inferiorly ends in a respective bush bearing (13) and (14), said bush bearings being both fitted on the central length of the shaft (15) being fitted to each of the wheels (1) and (2) through a respective inflected length (16) and (17), two connecting rods (18) and (19) being solidly secured to said central length of said shaft and articulatedly linked (20) to a central support (21) making up an articulated connection with the middle length of a U-shaped member having the end of each of its branches (24) and (25) linked in a pin-jointed connection to the end region (26) of the respective branch of the handlebar and an intermediary point (27) of each of its aforementioned branches linked in a pin-jointed connection to the respective one of said lateral members .

Description

The collapsible underframe that is used for perambulator

Technical field

This underframe is used to comprise three wheels, the i.e. perambulator of two trailing wheels and central front-wheel.

Background technology

Some styles of this perambulator are known the several years, there are some shortcomings in they, for example volume after folding is excessive, fact proved that the people who carries perambulator is difficult to carry out folding operation, thereby and these perambulators in case the folding posture that just is not suitable for being kept upright be difficult to more handle and store.

In these problems some the Foldable pushchair of the target by the Spanish Utility Model No.200101210 (ES-1050104) that has as the applicant are solved, described Foldable pushchair comprises the underframe that is formed by the pin joint parts, this helps the mutual of member and puts, thereby can obtain compact foldable structure, perambulator is remained on the corresponding control piece release easily at each branch top that the device of its deployed configuration can be by being located at handle, thereby help the described operation of people greatly about stroller.

Each side of described Pushchair includes corresponding side component, described side component joins corresponding shank by the handrail setting and at its front end to pin joint connection (pin-jointed connection), described shank is focused at the position of assembling front-wheel downwards, each described side component is sentenced pin joint at intermediate point and is joined the corresponding back shank relevant with cooresponding trailing wheel to, the rear end of each described side component joins the intermediate point of each branch of handle to pin joint, the lower end of these branches joins the U-shaped cross member to pin joint, this cross member connects U-shaped framework and the back shank that laterally joins seat to pin joint, and the front end of the U-shaped framework of seat joins front leg portions to pin joint.

Summary of the invention

Can obtain the simplified construction of perambulator as the collapsible underframe of target of the present invention, and the compact more foldable structure of this perambulator.

A characteristic feature is for this reason, replace the back shank with side component, each side component below end in the corresponding plain bearing, described plain bearing is assemblied in one the central length portion (length), this axle is assemblied on each trailing wheel by corresponding bending length portion, two pipe links are connected in the described central length portion securely, and be hinged to the intermediate length portion of U-shaped parts and constitute on the central support that is articulated and connected, the end of each branch of these U-shaped parts joins the end regions of the respective branch of handle to pin joint, and the intermediate point of each branch of these U-shaped parts joins on the corresponding described side component with pin joint, and described side component is relevant with described trailing wheel.

Another feature characteristics are, described central support be assemblied in the lower surface of central base sheet (centersill) and along it by longitudinal guide, the rear end of described central base sheet is assemblied in the central length portion of the described axle that is assemblied in trailing wheel by thrust bearing, and described central base sheet comprises by the roller bearing structure that turns to two-wheel to constitute at its front end.

In order to strengthen the rear portion of underframe, the structure of described axle (trailing wheel assembles thereon) is made of central length portion and two end length portions that are respectively applied for respective wheel, described length portion firmly fixes each other by the fastener that described pipe link is fastened to described axle, and by being used for that the structure of described axle is guaranteed in the be engaged with each other existence of the cross member that is provided with of above-mentioned two plain bearings.

And for roller bearing place before described obtains higher underframe stability, predict to it is provided with two separately wheels by corresponding galianconism supporting, described arm is drawn from the front end edge opposite sense side direction of described central base sheet.

To make these and other feature very clear by following detailed description, will more easily understand following explanation by five pages of appended accompanying drawings, these accompanying drawings show only to be quoted by example and not to limit the Application Example of the scope of the invention.

Description of drawings

In the accompanying drawings:

Fig. 1 and Fig. 2 represent deployed configuration and the foldable structure lateral plan seen in of assembly seen in the block diagram of looking from the rear of described underframe respectively;

Fig. 3 and Fig. 4 show the described underframe that is in deployed configuration and half-lap structure respectively with lateral plan;

Fig. 5, Fig. 6 and Fig. 7 are the detail perspective view of the rear lower of underframe;

Fig. 8 is illustrated in the assembly of the described reinforcement underframe seen in the block diagram of looking from the rear;

Fig. 9 is the detail perspective view according to the structure of the axle of the trailing wheel of the underframe of Fig. 8 and relative parts; And

Figure 10 has illustrated with block diagram has two separately CONSTRUCTED SPECIFICATION of the preceding roller bearing of wheel.

The specific embodiment

With reference to the accompanying drawings, this collapsible underframe that is used for perambulator comprises: two

rear flank wheels

1 and 2; By the preceding roller bearing 3 that is arranged in central authorities that turns to two-wheel to constitute; And U-shaped handle 4, its each

branch

5 and 6 end removably are assemblied in the intermediate point place of

respective side parts

7 and 8, each described side component 9 joins the front end of corresponding handrail 10 and 11 to pin joint in the top, and each described handrail point 12 is in its back-end sentenced the respective branch that pin joint joins handle to.

Each above-mentioned

side component

7 and 8 below end in corresponding plain bearing 13 and 14, described plain bearing all is assemblied in the central length portion of axle 15 (Fig. 6), axle 15 is assembled on each

trailing wheel

1 and 2 by corresponding

bending length portion

16 and 17.

Two

pipe links

18 and 19 are securely fixed in the described central length portion of axle 15, and its free end 20 (Fig. 5) is hinged on the central support 21 by arc 22, and arc 22 is sentenced pin joint at its front end 23 and joined described central support 21 to.

The intermediate length portion of described central support 21 and U-shaped parts constitutes hinged, each branch 24 of these U-shaped parts and 25 end are connected the lower end area 26 of the respective branch that joins handle to pin joint, and the intermediate point of each joins to pin joint on the described side component 7 relevant with trailing wheel and 8 corresponding one in the above-mentioned branch of these U-shaped parts.

Central support 21 is assembled to annex 28 (Fig. 6) and by its groove 29 guiding along the longitudinal, groove 29 is located at the lower surface place of base plate 30, the rear end of base plate 30 is assembled to the center of axle 15 central length portion by thrust bearing 31, and roller bearing 3 is assembled to the front end of described base plate.

Handle 4 comprises the U-shaped handle 32 that joins above-mentioned

branch

5 and 6 by pin 33 (being provided with blocking device 34) pin joint to, the top of each includes accordingly slidably

control piece

35 and 36 in these branches, described control piece is set is used for making the assembling release of the lower end 37 of described branch at the receiving device 38 of being located at

side component

7 and 8 intermediate point places.The articulated structure of handle 32 helps to obtain compact underframe foldable structure (Fig. 2).

According to Fig. 9, the axle that is equipped with

trailing wheel

1 and 2 thereon is by central length portion 15 ' constitute, all be used for this central length portion 15 of two curved end length portions 16 ' and 17 of each wheel ' be assemblied in ', guarantee described assembling by

pipe link

18 and 19 to the fastener 39 of axle, described axle by be used for plain bearing 13 and 14 be engaged with each other the cross member 40 that is provided with existence and strengthened reliably, for this reason each plain bearing 13 and 14 all have annex 13 ' and 14 ', they be assembled into the corresponding newel post (end stub) 40 that is fixedly connected to described cross member '.

According to Figure 10, preceding roller bearing 3 comprises that two are separately taken

turns

41 and 42, and each in them all to turn to layout to be bearing in

corresponding arm

43 and 44 places, draw from the opposite bifurcated direction of the front end edge side direction of central base sheet 30 by described arm.

According to Fig. 8, described underframe comprises the

respective housings

45 and 46 of the device that is used to be received as the corresponding baby seat (not shown) of assembling and establishes at each handrail 10 and 11 places, and in order to be used as Pushchair, described underframe will be equipped with corresponding seat, backrest, preceding railing, stretcher etc., and can have suitable annex, for example hang and brake equipment.

Claims

1, a kind of collapsible underframe that is used for perambulator comprises: two rear flank wheels (1,2); Be arranged in the preceding roller bearing (3) of central authorities; And U-shaped handle (4), its each branch (5,6) end removably is assemblied in corresponding side component (7,8) intermediate point place, the all its corresponding trailing wheel of described side component (1,2) is relevant, and each described side component (9) in the top joins corresponding handrail (10 to pin joint, 11), each described handrail is sentenced the respective branch that pin joint joins described handle in its rear portion (12); Described underframe is characterised in that, each and described trailing wheel (1,2) Xiang Guan described side component (7,8) below end at corresponding plain bearing (13,14), described plain bearing all is assembled in the central length portion of axle (15), described axle (15) is by corresponding bending length portion (16,17) be assembled to each described trailing wheel (1,2) on, two pipe links (18,19) be securely fixed in the described central length portion of described axle, and hinged joint (20) is on central support (21), the intermediate length portion of this central support and U-shaped parts formation is articulated and connected, each branch (24 of these U-shaped parts, 25) end joins the end regions (26) of the respective branch of described handle to pin joint, and the intermediate point of each branch of these U-shaped parts (27) joins on the corresponding described side component (7,8) with pin joint, and described side component (7,8) is relevant with described trailing wheel.

2, the collapsible underframe that is used for perambulator according to claim 1, it is characterized in that, described central support (21) be assembled on the lower surface of central base sheet (30) and along it by longitudinal guide, the rear end of described central base sheet is assembled to by thrust bearing (31) in the described central length portion of the described axle (15) that is assemblied in described trailing wheel, is assembled on the front end of described central base sheet by the described roller bearing (3) that turns to two-wheel to constitute.

3, the collapsible underframe that is used for perambulator according to claim 1 is characterized in that, by realize hinged joint the between described pipe link (18,19) and the described central support (21) as the arc (22) of intermediary.

4, the collapsible underframe that is used for perambulator according to claim 1, it is characterized in that, be equipped with described trailing wheel (1 on it, 2) described axle is made of central length portion (15 '), be respectively applied for two of respective wheel end length portions (16 ', 17 ') be assemblied in the described central length portion (15 '), by with described pipe link (18,19) be fastened to the fastener (39) of described axle, and by being used for described plain bearing (13,14) be engaged with each other and the existence of the cross member (40) that is provided with, and guarantee described assembling.

5, the collapsible underframe that is used for perambulator according to claim 1, it is characterized in that, roller bearing (3) comprises two separately wheels (41 before described, 42), in them each is by corresponding galianconism (43,44) supporting, described arm is drawn from the front end edge opposite sense side direction of described central base sheet (30).