CN2415682Y

CN2415682Y - Rear_wheels steering in_line multi_seat baby_carrier

Info

Publication number: CN2415682Y
Application number: CN 99258806
Authority: CN
Inventors: 杨智煌
Original assignee: XUBIN ENTERPRISE CO Ltd
Current assignee: XUBIN ENTERPRISE CO Ltd
Priority date: 1999-12-29
Filing date: 1999-12-29
Publication date: 2001-01-24
Anticipated expiration: 2009-12-29

Abstract

The utility model relates to a back-wheel turning type straight row multiple-seat baby carriage. In the utility model, a carriage frame is provided with a plurality of divided chair seats for causing the chair seats to be arranged in a straight type; the front side and the back side of the carriage frame are respectively fixedly provided with two front supporting rods and two back supporting rods; the bottoms of the front supporting rod and the back supporting rod are respectively pivoted with front rolling wheels and back rolling wheels for conveniently pushing the baby carriage; two pivoting devices are respectively installed between the two back supporting rods and between the back rolling wheels for causing the baby carriage to do turning actions and reaching the purposes for causing the baby carriage to do labor saving and convenient turning operation.

Description

In line many perambulators of rear wheel steer

The utility model relates to a kind of perambulator, particularly a kind of easy to operate, in line many perambulators of labour-saving rear wheel steer.

The application of the perambulator that the infant takes not only can be saved the burden that the adult clasped or bore the baby, and it is safe and comfortable simultaneously the infant to be obtained.A kind of many perambulators of straight-line that can take advantage of year multidigit baby are arranged, be on a vehicle frame, to separate out a plurality of seat supports, making this seat support be straight formula arranges, and be installed with two back and front supporting bars respectively in the forward and backward both sides of vehicle frame, be pivoted with forward and backward roller again respectively in back and front supporting bar bottom, be beneficial to promote perambulator, so, father and mother just can push away perambulator and the baby together goes on a tour, and are beneficial to look after nearby.Though the perambulator of this straight-line can provide a plurality of seats, carry more infant for taking advantage of, but still has following shortcoming in the use: because the perambulator of this type of in line many people seat formula, it turns to control generally to be still at the front-wheel position, therefore, viewpoint with mechanics (lever law), a plurality of babies are except increasing the single-piece heavy burden, the more important thing is that the fulcrum of perambulator is at the rear roller position, force arm length is less relatively, therefore when father and mother's desire is turned perambulator or is changed direct of travel, just need to apply bigger strength perambulator is advanced, especially when rugged road conditions of jolting or upward slope are desired to turn to, seem very painstaking especially.

The purpose of this utility model is to provide a kind of can make perambulator turn to like a cork, to reach rapid operation, in line many perambulators of rear wheel steer easily.

The technical solution of the utility model is: in line many perambulators of a kind of rear wheel steer, it is to separate out a plurality of seat supports on a vehicle frame, making these seat supports be straight formula arranges, before the vehicle frame, before back both sides are installed with two respectively, back support rod, preceding, before the back support rod bottom is pivoted with respectively again, rear roller, be beneficial to promote perambulator, be characterized in: between described two back support rods and rear roller, be equiped with a pivoting device respectively, this pivoting device from bottom to top comprises a permanent seat, one pivot joint block, one connecting piece and a pivot, this fixed block is to be hubbed on the wheel shaft of rear roller, pivot joint block connects and is located at fixed block one side, connecting piece is installed in the back support rod bottom, and the mat pivot vertically places this assembly block and pivot connecting seat.

The utility model is pivoting device to be changed into by front-wheel be arranged on the trailing wheel, be equiped with a pivoting device between two back support rods and rear roller respectively, and become in line many perambulators of a kind of rear wheel steer, viewpoint with mechanics, because the strong point is at the front wheel position, therefore on the whole be the kenel that belongs to III class in the lever law, its force arm L0 length increases, then reduced by arm of force L1 length, as long as just can order about perambulator with the less application of force turns to, make perambulator lighter on steering manipulation comparatively speaking.On concrete structure, because of pivot joint block relatively connecting piece make horizontal pivotal action, so perambulator can easily turn to, and make perambulator can be more laborsaving on steering operation, convenient.

Below by most preferred embodiment and accompanying drawing in line many perambulators of the utility model rear wheel steer are described in detail:

Fig. 1 is the schematic side view of the utility model preferred embodiment.

Fig. 2 is the block diagram of the utility model preferred embodiment.

Fig. 3 is the exploded block diagram of the utility model preferred embodiment.

Fig. 4 is the assembled sectional view of the utility model preferred embodiment.

Fig. 5 is the rear roller pivot view of the utility model preferred embodiment.

Fig. 6 is the moment sketch that in the past turns to front-wheel control perambulator.

Fig. 7 is the moment sketch that the utility model turns to trailing wheel control perambulator.

As shown in Figure 1, 2, in line many perambulators of the rear wheel steer of the utility model embodiment, be on a vehicle frame 100, to separate out several seat supports 10, make these seat supports 10 be straight formula and arrange shape, be installed with two back and front supporting

bars

20,30 respectively in vehicle frame 100 forward and backward both sides, be pivoted with two forward and backward

rollers

40,50 again respectively in back and

front supporting bar

20,30 bottoms, with the convenient perambulator that promotes.

50 of two back support rods 30 and rear rollers are equiped with a pivoting device 60 respectively, and shown in Fig. 3,4, this pivoting device 60 from bottom to top is to comprise a permanent seat 61, a pivot joint block 62, a connecting piece 63 and a pivot 64.

Permanent seat 61 is to be H shape and to be hubbed on the wheel shaft 51 of rear roller 50, and having a body 611 reaches before this body 611, corresponding respectively two fins 612 that are convexly equipped with out in back both sides, 613,612 of two fins that are positioned at body 611 front sides are pivoted with a pressboard 65, respectively be formed with a spacer 651 in pressboard 65 both sides, and two fins, 612 belows convex with two ears 614 again, make this two ear 614 form a limiting section 615 that is recess respectively with fin 612 joining places, can embed in it for spacer 651, with location pressboard 65, and impel spacer 651 to stretch into by 52 of the catch of rear roller 50 radiation-like that inner edge forms, to form braking action (as shown in Figure 4), in addition, permanent seat 61 bottom transverse are equipped with a circular hole 616, laterally wear pivot for the wheel shaft 51 of rear roller 50.

Pivot joint block 62 is to be provided with a T-shaped lateral piece 622 on a straight-bar portion 621 tops, and straight-bar portion 621 is 613 of two fins that are articulated in permanent seat 61 rear sides, and lateral piece 622 front sides are provided with short slot 623, also are provided with a shrinkage pool 624 in pivot joint block 62 central authorities in addition.

Connecting piece 63, be L-shaped and rivet clasp in back support rod 30 bottoms, and the proximal end place vertically is equipped with a perforation 631, and connecting piece 63 terminal corresponding short slot 623 places down are provided with short slot 632 on, and after can connecting, both form a chute, can be installed in wherein for a push button 66, and this push button 66 can be slided up and down in upper and lower short slot 632,623, during with short slot 623 under push button 66 slide fasteners are gone into, pivot joint block 62 and connecting piece 63 can be connected as one, whether turn to restriction rear roller 50.

Pivot 64 is to be direct rod shape, its place, bottom is equipped with a knock hole 641, pivot 64 vertically places the perforation 631 of connecting piece 63 and the shrinkage pool 624 of pivot joint block 62, laterally placed knock hole 641 by a locating dowel pin 642 again, deviate from the outside to prevent pivot 64, and pivot joint block 62 and connecting piece 63 be pivoted is one, and make pivot joint block 62 relatively connecting piece 63 make horizontal pivotal action.

In sum, in line many perambulators of the utility model rear wheel steer, has effect as described later: as Fig. 2, shown in 4, because pivoting device 60 is to be installed in 50 of back support rod 30 and rear rollers, and pivot joint block 62 is the pivot joint state with connecting piece 63, at this moment, for connecting piece 63 can be rotated relatively with pivot joint block 62, therefore must earlier push button 66 be passed up, allow this push button 66 again buckle go in the following short slot 623 of pivot joint block 62, impel pivot joint block 62 to break away from the inlay card state with connecting piece 63, as shown in Figure 5, then, as long as the application of force promotes the handle 70 of perambulator, pivot joint block 62 is rotated with respect to connecting piece 63, and interlock permanent seat 61, the wheel shaft 51 of rear roller 50 is done the turn of an angle, and reaches the purpose that perambulator turns to, and is example with Fig. 5, pivot joint block 62 has rotated 180 degree relatively, and perambulator just is by advancing forward to change into towards post-tensioning and moves.

The utility model is pivoting device 60 to be changed into by front-wheel be arranged on the trailing wheel, and become in line many perambulators of a kind of rear wheel steer, and viewpoint with mechanics, as Fig. 6, shown in 7, contrasting two figure can obviously find out, the supporting point position of perambulator and the utility model perambulator was also inequality in the past, and can know according to lever law, L0 (force arm) * F (application of force)=L1 (being subjected to the arm of force) * W (weight), now control the perambulator (as shown in Figure 6) that turns to front-wheel, its strong point is at rear roller 50 positions, therefore on the whole be the kenel that belongs to I class in the lever law, whether the operator is laborsaving in operation, be according to force arm L0 be subjected to arm of force L ratio between the two, and to do on the efficient of " merit " be neither laborsaving, do not save time yet, and the utility model is because of being employing rear-axle steering control (as shown in Figure 7), its strong point is at front wheel 40 positions, therefore on the whole be the kenel that belongs to III class in the lever law, its force arm L0 length increases, then reduced by arm of force L1 length, father and mother make perambulator lighter on steering manipulation as long as just can order about perambulator with the less application of force turns to comparatively speaking, convenient.

Claims

1. in line many perambulators of rear wheel steer, be on a vehicle frame, to separate out a plurality of seat supports, make these seat supports be straight formula and arrange, be installed with two back and front supporting bars respectively in the forward and backward both sides of vehicle frame, be pivoted with forward and backward roller again respectively in back and front supporting bar bottom, it is characterized in that:

Be equiped with a pivoting device respectively between described two back support rods and rear roller, this pivoting device from bottom to top comprises a permanent seat, a pivot joint block, a connecting piece and a pivot, described permanent seat is to be hubbed on the wheel shaft of rear roller, described pivot joint block is to connect to be located at fixed block one side, described connecting piece is to be installed in the back support rod bottom, and described pivot vertically places connecting piece and pivot joint block.

2. in line many perambulators of rear wheel steer as claimed in claim 1, it is characterized in that: be pivoted with a pressboard on the permanent seat of described pivoting device, these pressboard both sides respectively are formed with a spacer, and described roller inner edge is provided with the catch that can supply to embed spacer.

3. in line many perambulators of rear wheel steer as claimed in claim 1, it is characterized in that: described connecting piece is corresponding with pivot joint block to be provided with on one short slot and short slot once, and this upper and lower short slot is involutory and forms a chute, is provided with a push button slidably in this chute.