CN1309048A

CN1309048A - Pram with direction-changeable seat

Info

Publication number: CN1309048A
Application number: CN 00111677
Authority: CN
Inventors: 沈海东
Original assignee: Goodbaby Group Corp
Current assignee: Goodbaby Child Products Co Ltd
Priority date: 2000-02-13
Filing date: 2000-02-13
Publication date: 2001-08-22
Anticipated expiration: 2020-02-13
Also published as: CN1155492C

Abstract

A pram with direction-changeable seat is composed of a frame, front wheels, rear wheels, a push rod linked to the frame, and a baby seat for sleeping or sitting on it, and features that it also has the rotationally linked back linking-rod and back rod, which can be locked to the frame or unlocked and rotated for changing their direction, that is, changing the direction of seat. Its advantages are convenient operation and simple structure.

Description

The perambulator of direction-changeable seat

The present invention relates to a kind of doll carriage.

In the prior art, perambulator comprises vehicle frame, be arranged at the front-wheel of described vehicle frame lower front, be arranged at described vehicle frame lower rear trailing wheel, the pushing hands bar that is connected with described vehicle frame, be arranged at the seat of using for sitting infant on the described vehicle frame.A lot of perambulators all have the commutation function at seat, promptly the seat of perambulator are changed into go-cart person to be state back to face, and this moment, the baby faced the place ahead, can observe view; The seat of perambulator changed into go-cart person be aspectant state, this moment, the adult can avoid the baby directly by wind with baby's face-to-face exchange and backrest; Present commutation seat is to take off the seat from vehicle frame, is positioned on the vehicle frame again and locking after the accent turnback, this kind structure operation inconvenience.Also have a kind of perambulator to realize the commutation function at seat by the commutation of pushing hands bar, but there is the vehicle frame of many perambulators can not carry out the commutation of pushing hands bar, even after the perambulator pushing hands bar that the has commutation, become trailing wheel owing to play the front-wheel of cardan wheel effect, cause promoting turning to when perambulator is advanced inconvenience.

The object of the present invention is to provide a kind of perambulator of easy to operate direction-changeable seat.

Technical scheme of the present invention is: a kind of perambulator of direction-changeable seat, comprise vehicle frame, be arranged at the front-wheel of described vehicle frame lower front, the trailing wheel that is arranged at described vehicle frame lower rear, the pushing hands bar that is connected with described vehicle frame, be arranged at the seat of using for sitting infant on the described vehicle frame, the backrest connecting rod that has been rotatably connected on the described vehicle frame, back support bar has been rotatably connected on the described backrest connecting rod; Described back support bar is when first control position, and described back support bar is erected in the rear portion of vehicle frame, and described back support bar makes that be sitting in baby and the go-cart person who handles the pushing hands bar on the seat is state back to face; Described back support bar is when second control position, and described back support bar is erected in the front portion of vehicle frame, and described back support bar makes the baby who is sitting on the seat be aspectant state with the go-cart person who handles the pushing hands bar; When described first control position, described backrest connecting rod is locked on the described vehicle frame by blocking device; When described second control position, described backrest connecting rod is locked on the described vehicle frame by blocking device; During described blocking device release, described backrest connecting rod rotates with respect to described vehicle frame and described back support bar is changed between described first control position and described second control position.

The present invention compared with prior art has following advantage:

Behind the release blocking device, can spur the backrest connecting rod by back support bar and rotate, realize the commutation at the seat of perambulator, easy to operate, simple in structure.

The invention will be further described below in conjunction with drawings and Examples:

Accompanying drawing 1 is the structural representation of the embodiment of the invention one;

Accompanying drawing 2 is the structural representation of the embodiment of the invention two;

Accompanying drawing 3 is the A-A direction amplification view of accompanying drawing 1;

Accompanying drawing 4 is the B-B direction cutaway view of accompanying drawing 3;

Structural representation when accompanying drawing 5 changes to another control position for the back support bar of accompanying drawing 4; Wherein:

[1], backrest connecting rod; [2], basket rod; [3], back support bar; [4], backrest adjustment spare; [5], front-wheel; [6], trailing wheel; [7], foreleg; [8], back leg; [9], pushing hands bar; [10], backrest adjustment pull bar; [11], latch hook; [12], second stop pin; [13], first stop pin; [14], the rotating shaft of backrest connecting rod and basket rod; [15], the rotating shaft of backrest connecting rod and back support bar; [16], spring; [17], latch hook moving part; [18], backrest adjustment gear piece; [19], eccentric pin; [20], backrest adjustment drawhead;

Embodiment: referring to accompanying drawing 1 and accompanying drawing 2, a kind of perambulator of direction-changeable seat comprises vehicle frame, is arranged at the front-wheel [5] of described vehicle frame lower front, the trailing wheel [6] that is arranged at described vehicle frame lower rear, the pushing hands bar [9] that is connected with described vehicle frame, is arranged at the seat of using for sitting infant on the described vehicle frame.The backrest connecting rod [1] that has been rotatably connected on the described vehicle frame, the back support bar that has been rotatably connected on the described backrest connecting rod [1] [3], the rotating shaft [15] of backrest connecting rod in the accompanying drawing and back support bar is both axles that is rotatably connected; Described back support bar [3] solid line of accompanying drawing 1 and accompanying drawing 2 (see shown in) when first control position, described back support bar [3] is erected in the rear portion of vehicle frame, and described back support bar [3] makes that be sitting in baby and the go-cart person who handles pushing hands bar [9] on the seat is state back to face; Described back support bar [3] long and two-short dash line of accompanying drawing 1 and accompanying drawing 2 (see shown in) when second control position, described back support bar [3] is erected in the front portion of vehicle frame, and described back support bar [3] makes the baby who is sitting on the seat be aspectant state with the go-cart person who handles pushing hands bar [9]; When described first control position, described backrest connecting rod [1] is locked on the described vehicle frame by blocking device; When described second control position, described backrest connecting rod [1] is locked on the described vehicle frame by blocking device; During described blocking device release, described backrest connecting rod [1] rotates with respect to described vehicle frame and described back support bar [3] is changed between described first control position and described second control position.

Referring to accompanying drawing 1 and accompanying drawing 2, described backrest connecting rod [1] is rotationally connected with on the basket rod [2] that roughly is provided with in horizontal direction, and the rotating shaft of backrest connecting rod and basket rod [14] is both axles that is rotatably connected.The front portion of described basket rod [2] is rotationally connected with on the foreleg [7] of described vehicle frame, and the rear portion of described basket rod [2] is rotationally connected with on the back leg [8] of described vehicle frame.Described backrest connecting rod [1] is rotationally connected with on the basket rod [2] of the approximate mid-section between described foreleg [7] and the back leg [8].

Referring to accompanying drawing 4 and accompanying drawing 5, the bottom of described back support bar [3] is rotationally connected with the end of described backrest connecting rod [1].The bottom of described back support bar [3] is provided with the backrest angle control apparatus, and its backrest angle control apparatus is that backrest adjustment pull bar [10] and backrest adjustment gear piece [18] match.

Referring to accompanying drawing 1, when described first control position, described backrest connecting rod [1] with the place of being rotatably connected of vehicle frame forwards to extending to form the seat cushion bar that supports described seat, the seat is arranged on the described backrest connecting rod [1].

Referring to accompanying drawing 2, described basket rod [2] is as the seat cushion bar that supports described seat, and described backrest connecting rod [1] only plays the role of changing.

Referring to accompanying drawing 3, accompanying drawing 4, described blocking device is the latch hook [11] that has been rotatably connected on the described backrest connecting rod [1], and the rear portion anterior and described vehicle frame of described vehicle frame is respectively equipped with second stop pin [12] and first stop pin [13]; When described first control position, described latch hook [11] is hooked on described first stop pin [13], and when described second control position, described latch hook [11] is hooked on described second stop pin [12].

Described second stop pin [12] and first stop pin [13] are arranged at the front and rear of the basket rod [2] that roughly is provided with in horizontal direction respectively.The eccentric position of described latch hook [11] is provided with eccentric pin [19], hangs with latch hook moving part [17] on this eccentric pin [19], and described latch hook moving part [17] is connected with backrest adjustment pull bar [10] when being upright state in described back support bar [3].

Hang with an end of spring [16] on the described latch hook attaching parts [17], described spring [16] makes described latch hook [11] have the trend of trend lock-out state.

When in described back support bar [3] when being in upright state, spur described backrest adjustment pull bar [10], then backrest adjustment drawhead [20] drives on the latch hook moving part [17] and moves, latch hook moving part [17] spurs described latch hook [11] by eccentric pin [19] again and breaks away from described first stop pin [13] or described second stop pin [12], makes described blocking device release.

Described back support bar [3] is when first control position, and described backrest connecting rod [1] is horizontal direction setting roughly; Described back support bar [3] is when second control position, and described backrest connecting rod [1] also is horizontal direction setting roughly.

Claims

1, a kind of perambulator of direction-changeable seat, comprise vehicle frame, be arranged at the front-wheel [5] of described vehicle frame lower front, the trailing wheel [6] that is arranged at described vehicle frame lower rear, the pushing hands bar [9] that is connected with described vehicle frame, be arranged at the seat of using for sitting infant on the described vehicle frame, it is characterized in that: the backrest connecting rod [1] that has been rotatably connected on the described vehicle frame, the back support bar that has been rotatably connected on the described backrest connecting rod [1] [3]; Described back support bar [3] is when first control position, and described back support bar [3] is erected in the rear portion of vehicle frame, and described back support bar [3] makes that be sitting in baby and the go-cart person who handles pushing hands bar [9] on the seat is state back to face; Described back support bar [3] is when second control position, and described back support bar [3] is erected in the front portion of vehicle frame, and described back support bar [3] makes the baby who is sitting on the seat be aspectant state with the go-cart person who handles pushing hands bar [9]; When described first control position, described backrest connecting rod [1] is locked on the described vehicle frame by blocking device; When described second control position, described backrest connecting rod [1] is locked on the described vehicle frame by blocking device; During described blocking device release, described backrest connecting rod [1] rotates with respect to described vehicle frame and described back support bar [3] is changed between described first control position and described second control position.

2, the perambulator of direction-changeable seat according to claim 1 is characterized in that: described backrest connecting rod [1] is rotationally connected with on the basket rod [2] that roughly is provided with in horizontal direction.

3, the perambulator of direction-changeable seat according to claim 2, it is characterized in that: the front portion of described basket rod [2] is rotationally connected with on the foreleg [7] of described vehicle frame, and the rear portion of described basket rod [2] is rotationally connected with on the back leg [8] of described vehicle frame.

4, the perambulator of direction-changeable seat according to claim 3 is characterized in that: described backrest connecting rod [1] is rotationally connected with on the basket rod [2] of the approximate mid-section between described foreleg [7] and the back leg [8].

5, the perambulator of direction-changeable seat according to claim 1 is characterized in that: the bottom of described back support bar [3] is rotationally connected with the end of described backrest connecting rod [1].

6, the perambulator of direction-changeable seat according to claim 1 is characterized in that: the bottom of described back support bar [3] is provided with the backrest angle control apparatus.

7, the perambulator of direction-changeable seat according to claim 1 is characterized in that: when described first control position, described backrest connecting rod [1] with the place of being rotatably connected of vehicle frame forwards to extending to form the seat cushion bar that supports described seat.

8, the perambulator of direction-changeable seat according to claim 2 is characterized in that: described basket rod [2] is as the seat cushion bar that supports described seat.

9, the perambulator of direction-changeable seat according to claim 1, it is characterized in that: described blocking device is the latch hook [11] that has been rotatably connected on the described backrest connecting rod [1], and the rear portion anterior and described vehicle frame of described vehicle frame is respectively equipped with second stop pin [12] and first stop pin [13]; When described first control position, described latch hook [11] is hooked on described first stop pin [13], and when described second control position, described latch hook [11] is hooked on described second stop pin [12].

10, the perambulator of direction-changeable seat according to claim 9 is characterized in that: described second stop pin [12] and first stop pin [13] are arranged at the front and rear of the basket rod [2] that roughly is provided with in horizontal direction respectively.

11, the perambulator of direction-changeable seat according to claim 9, it is characterized in that: the eccentric position of described latch hook [11] is provided with eccentric pin [19], hang with latch hook moving part [17] on this eccentric pin [19], described latch hook moving part [17] is connected with backrest adjustment pull bar [10] when being upright state in described back support bar [3].

12, the perambulator of direction-changeable seat according to claim 11 is characterized in that: hang with an end of spring [16] on the described latch hook attaching parts [17], described spring [16] makes described latch hook [11] have the trend of trend lock-out state.

13, the perambulator of direction-changeable seat according to claim 1 is characterized in that: described back support bar [3] is when first control position, and described backrest connecting rod [1] is horizontal direction setting roughly; Described back support bar [3] is when second control position, and described backrest connecting rod [1] also is horizontal direction setting roughly.