CN1397464A

CN1397464A - Bidirectionally foldable pram

Info

Publication number: CN1397464A
Application number: CN01127002.0A
Authority: CN
Inventors: 宋郑还; 钟友明
Original assignee: Goodbaby Child Products Co Ltd
Current assignee: Goodbaby Child Products Co Ltd
Priority date: 2001-07-18
Filing date: 2001-07-18
Publication date: 2003-02-19
Anticipated expiration: 2021-07-18
Also published as: CN1211238C

Abstract

A bidirectionally foldable pram is composed of a pair of front legs, a pair of back legs, front wheels, back wheels, push handle, pivoted two front transverse bars between front legs, pivoted two back transverse bars between two back legs, and front and back lower regulating bars respectively pivoted to the said transverse bars. Its advantages are high rigidity in developing state and high safety.

Description

Bidirectionally foldable pram

The present invention relates to a kind of baby strollers.

In the prior art, it is the application for a patent for invention of 95115740.X that Patent Office of the People's Republic of China discloses application number, but provide a kind of all around direction folding perambulator in the accompanying drawing of this patent application document, it is to act on the turning set on foreleg or the back leg by adjust bar, when Pram folding, the rotation by turning set drives front transverse bar or back transverse bar, and to rotate the both direction of realizing perambulator backward or forward folding.But because under open mode, the front transverse bar of perambulator and back transverse bar are to rely on the effect of turning set that it is stretched, so its poor rigidity, cause under open mode can since hinge-point too much and car load rigidity variation.

The object of the present invention is to provide a kind of under open mode the bidirectionally foldable pram of good rigidly.

Technical scheme of the present invention is: a kind of bidirectionally foldable pram, comprise a pair of foreleg, a pair of back leg, be arranged at described foreleg below front-wheel, be arranged at trailing wheel, the push rod of described back leg below, be provided with front transverse bar between the described a pair of foreleg, described front transverse bar is formed by two rod member pivotal joints at least, and the axial line of described pivot is horizontal direction setting haply; Two outside portions of described front transverse bar also respectively with a pair of foreleg pivotal joint, the axial line of described pivot is that horizontal direction is provided with haply; Be provided with back transverse bar between the described a pair of back leg, described back transverse bar is formed by two rod member pivotal joints at least, and the axial line of described pivot is horizontal direction setting haply; Two outside portions of described back transverse bar also are connected with a pair of back leg phase pivot respectively, and the axial line of described pivot is horizontal direction setting haply; Side in the pivot connection of departing from described front transverse bar and foreleg, there is the bottom of anterior lower dolly bar the both sides of described front transverse bar pivotal joint respectively, but the top of described anterior lower dolly bar during also with Pram folding other rod member of longitudinal movement be connected; Side in the pivot connection of departing from described back transverse bar and back leg, there is the bottom of rear portion lower dolly bar the both sides of described back transverse bar pivotal joint respectively, but the top of described rear portion lower dolly bar during also with Pram folding other rod member of longitudinal movement be connected.

The present invention compared with prior art has following advantage:

Because when perambulator is opened, particularly when the baby takes, can make anterior lower dolly bar or rear portion lower dolly bar that front transverse bar or back transverse bar are imposed bigger power it is strutted, then whole perambulator is in presses stable status more more, the rigidity of whole perambulator is improved, safe in utilization.

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

Accompanying drawing 1 is the perspective view of the present invention under open mode;

Accompanying drawing 2 is the perspective view of the present invention under folded state;

Accompanying drawing 3 for foreleg with after front transverse bar is connected, the structural representation under the semi-collapsed condition; Wherein:

[1], anterior lower dolly bar; [2], preceding sliding sleeve; [3], seat cushion bar; [4], the anterior pole that raises; [5], pole is raised at the rear portion; [6], back leg attaching parts; [7], push rod; [8], side handrail; [9], push rod attaching parts; [10], back transverse bar; [11], back sliding sleeve; [12], rear portion lower dolly bar; [13], back leg; [14], trailing wheel; [15], foreleg; [16], foreleg attaching parts; [17], front-wheel; [18], front transverse bar;

Embodiment: referring to accompanying drawing 1 to accompanying drawing 3, a kind of bidirectionally foldable pram, comprise a pair of foreleg [15], a pair of back leg [13], be arranged at described foreleg [15] below front-wheel [17], be arranged at trailing wheel [14], the push rod [7] of described back leg [13] below.The side handrail [8] that the upper end pivotal joint of described foreleg [15] or back leg [13] has front and rear direction to be provided with, the rearward end pivotal joint of described side handrail [8] has push rod [7], the bottom pivotal joint of described push rod [7] has push rod attaching parts [9], described push rod attaching parts [9] also with back leg [13] pivotal joint, the leading section of the seat cushion bar [3] that front and rear direction is provided with is pivotally connected on the foreleg [15], and the rearward end of described seat cushion bar [3] is pivotally connected on the push rod attaching parts [9].

Be provided with front transverse bar [18] between the described a pair of foreleg [15], described front transverse bar [18] is formed by two rod member pivotal joints at least, be that two rod member pivotal joints form in the accompanying drawing, the axial line of described pivot is horizontal direction setting haply, make that front transverse bar [18] can be perpendicular to folding on the direction of horizontal surface, and the pivotal joint place of two rod members is unidirectional pivotal joint, make the middle part of front transverse bar [18] can only upwards fold and can not fold downwards, as shown in Figure 3; Two outside portions of described front transverse bar [18] also respectively with a pair of foreleg [15] pivotal joint, the axial line of described pivot is that horizontal direction is provided with haply; Be provided with back transverse bar [10] between the described a pair of back leg [13], described back transverse bar [10] is formed by two rod member pivotal joints at least, also two rod member pivotal joints in the accompanying drawing, its junction is unidirectional pivotal joint, make back transverse bar [10] upwards to fold and can not fold that the axial line of described pivot is horizontal direction setting haply downwards; Two outside portions of described back transverse bar [18] also are connected with a pair of back leg [13] phase pivot respectively, and the axial line of described pivot is horizontal direction setting haply; Departing from the side of described front transverse bar [18] with the pivot connection of foreleg [15], there is the bottom of anterior lower dolly bar [1] both sides of described front transverse bar [18] pivotal joint respectively, described anterior lower dolly bar [1] but top during also with Pram folding other rod member of longitudinal movement be connected;

Slidely connect preceding sliding sleeve [2] on the described foreleg [15], should can slide up and down along foreleg [15] by preceding sliding sleeve [2], the upper end of described anterior lower dolly bar [1] is connected on the described preceding sliding sleeve [2], going back pivotal joint before described on the sliding sleeve [2] has the anterior pole [4] that raises, described anterior raise pole [4] but during with Pram folding other rod member phase pivot of longitudinal movement be connected.Can be that described anterior upper end of raising pole [4] is pivotally connected on the described side handrail [8], also can be that described anterior upper end of raising pole [4] is pivotally connected on the described cushion rod [3].

Departing from the side of described back transverse bar [10] with the pivot connection of back leg [13], there is the bottom of rear portion lower dolly bar [12] both sides of described back transverse bar [10] pivotal joint respectively, described rear portion lower dolly bar [12] but top during also with Pram folding other rod member of longitudinal movement be connected.

Slidely connect back sliding sleeve [11] on the described back leg [13], the upper end of described rear portion lower dolly bar [12] is connected on the described back sliding sleeve [11], going back pivotal joint on the described back sliding sleeve [11] has the rear portion to raise pole [5], described rear portion raise pole [5] but during with Pram folding other rod member phase pivot of longitudinal movement be connected.The upper end that can be described rear portion rise pole [5] is pivotally connected on the described push rod attaching parts [9], also can be that the upper end of described rear portion rise pole [5] is pivotally connected on the described cushion rod [3].

There is the bottom of anterior lower dolly bar [1] in the outside in the pivot connection of described front transverse bar [18] and foreleg [15], the both ends of described front transverse bar [18] pivotal joint respectively; There is the bottom of rear portion lower dolly bar [12] in the outside in the pivot connection of described back transverse bar [10] and back leg [13], the both ends of described back transverse bar [10] pivotal joint respectively.

The middle part of described front transverse bar [18] is the pivotal joint place of two rod members, and the middle part of back transverse bar [10] also is the pivotal joint place of two rod members.

Claims

1, a kind of bidirectionally foldable pram, comprise a pair of foreleg [15], a pair of back leg [13], be arranged at described foreleg [15] below front-wheel [17], be arranged at trailing wheel [14], the push rod [7] of described back leg [13] below, it is characterized in that: be provided with front transverse bar [18] between the described a pair of foreleg [15], described front transverse bar [18] is formed by two rod member pivotal joints at least, and the axial line of described pivot is horizontal direction setting haply; Two outside portions of described front transverse bar [18] also respectively with a pair of foreleg [15] pivotal joint, the axial line of described pivot is that horizontal direction is provided with haply; Be provided with back transverse bar [10] between the described a pair of back leg [13], described back transverse bar [10] is formed by two rod member pivotal joints at least, and the axial line of described pivot is horizontal direction setting haply; Two outside portions of described back transverse bar [18] also are connected with a pair of back leg [13] phase pivot respectively, and the axial line of described pivot is horizontal direction setting haply; Departing from the side of described front transverse bar [18] with the pivot connection of foreleg [15], there is the bottom of anterior lower dolly bar [1] both sides of described front transverse bar [18] pivotal joint respectively, described anterior lower dolly bar [1] but top during also with Pram folding other rod member of longitudinal movement be connected; Departing from the side of described back transverse bar [10] with the pivot connection of back leg [13], there is the bottom of rear portion lower dolly bar [12] both sides of described back transverse bar [10] pivotal joint respectively, described rear portion lower dolly bar [12] but top during also with Pram folding other rod member of longitudinal movement be connected.

2, bidirectionally foldable pram according to claim 1, it is characterized in that: slidely connect preceding sliding sleeve [2] on the described foreleg [15], the upper end of described anterior lower dolly bar [1] is connected on the described preceding sliding sleeve [2], going back pivotal joint before described on the sliding sleeve [2] has the anterior pole [4] that raises, described anterior raise pole [4] but during with Pram folding other rod member phase pivot of longitudinal movement be connected.

3, bidirectionally foldable pram according to claim 1, it is characterized in that: before the upper end pivotal joint of described foreleg [15] or back leg [13] has, the rear is to the side handrail [8] that is provided with, the rearward end pivotal joint of described side handrail [8] has push rod [7], the bottom pivotal joint of described push rod [7] has push rod attaching parts [9], described push rod attaching parts [9] also with back leg [13] pivotal joint, before, the rear is pivotally connected on the foreleg [15] to the leading section of the seat cushion bar [3] that is provided with, and the rearward end of described seat cushion bar [3] is pivotally connected on the push rod attaching parts [9].

4, according to claim 2 or 3 described bidirectionally foldable prams, it is characterized in that: described anterior upper end of raising pole [4] is pivotally connected on the described side handrail [8].

5, according to claim 2 or 3 described bidirectionally foldable prams, it is characterized in that: described anterior upper end of raising pole [4] is pivotally connected on the described cushion rod [3].

6, bidirectionally foldable pram according to claim 1, it is characterized in that: slidely connect back sliding sleeve [11] on the described back leg [13], the upper end of described rear portion lower dolly bar [12] is connected on the described back sliding sleeve [11], going back pivotal joint on the described back sliding sleeve [11] has the rear portion to raise pole [5], described rear portion raise pole [5] but during with Pram folding other rod member phase pivot of longitudinal movement be connected.

7, according to claim 3 or 6 described bidirectionally foldable prams, it is characterized in that: the upper end that pole [5] is raised at described rear portion is pivotally connected on the described push rod attaching parts [9].

8, according to claim 3 or 6 described bidirectionally foldable prams, it is characterized in that: the upper end that pole [5] is raised at described rear portion is pivotally connected on the described cushion rod [3].

9, bidirectionally foldable pram according to claim 1, it is characterized in that: there is the bottom of anterior lower dolly bar [1] in the outside in the pivot connection of described front transverse bar [18] and foreleg [15], the both ends of described front transverse bar [18] pivotal joint respectively; There is the bottom of rear portion lower dolly bar [12] in the outside in the pivot connection of described back transverse bar [10] and back leg [13], the both ends of described back transverse bar [10] pivotal joint respectively.

10, bidirectionally foldable pram according to claim 1 is characterized in that: the middle part of described front transverse bar [18] is the pivotal joint place of two rod members, and the middle part of back transverse bar [10] also is the pivotal joint place of two rod members.