CN2425833Y

CN2425833Y - Brake for baby carrier

Info

Publication number: CN2425833Y
Application number: CN 00227086
Authority: CN
Inventors: 黄英源
Original assignee: Zhongshan Longcheng Daily Products Co Ltd
Current assignee: Zhongshan Longcheng Daily Products Co Ltd
Priority date: 2000-01-14
Filing date: 2000-01-14
Publication date: 2001-04-04
Anticipated expiration: 2010-01-14

Abstract

The utility model relates to a brake device for baby carriages. A design that a rotation type cam mechanism is linked by a pedal which can do movements of left and right swing is utilized by the brake device for baby carriages. The swing movements of the pedal are converted to straight-line and reciprocating movements of a left brake lever and a right brake lever. So, when the pedal is treaded downwards by an operator, the left and the right brake levers can be linked simultaneously. The left and the right brake levers are braked synchronously according to the swing direction of the pedal, or one pair of back wheels are released. The pedal is also provided with a retaining mechanism. The pedal can be retained in a brake position or a release position arbitrarily.

Description

The brake gear of perambulator

The utility model relates to a kind of brake gear, particularly a kind of perambulator that is used in, and a brake gear of stepping on the function of dual brake can be provided.

The technology that brake gear is set at perambulator is early well known, particularly on device has the doll carriage of wheel the indispensable especially design of brake is set.General perambulator has been equipped with the wheel more than three usually at least, wherein comprised pair of rear wheels again at least, for safe and reliable brake function is provided, brake gear must provide the brake function that limits its rotation to two trailing wheels that can rotate respectively, is the design of the best with the synchronous brake function that can check two trailing wheels synchronously again wherein.

In order to realize aforementioned function, in known or the perambulator brake gear that disclosed for example: German patent DE 29818659U1, wherein disclosed a kind of perambulator brake gear that can check or discharge two wheels simultaneously, a kind of brake sleeve pipe the moving axially along wheel shaft that can make raised panel element interlock one tubulose of straight reciprocating motion trampled or upwards triggered in this brake gear utilization, by the design of entangling the petal-shaped brake fin of wheel shaft of brake sleeve pipe, provide brake or the function that discharges, the user must brake by the mode of stepping on flange, then must utilize toe that flange is upwards provoked when desire is removed brake.

In addition in the U.S. the 5th, 460, among No. 399 patent cases, also disclosed another kind of brake gear with identical function, this brake gear utilizes two brake lever of a kind of pedal interlock that can swing up and down, wherein pedal bottom is provided with a pair of inclined-plane that maintains an angle each other, and the user must push brake lever among the spoke by the inclined-plane simultaneously by the mode of push down on the pedal during brake, then need pedal upwards be provoked with toe equally when desire discharges brake.

Aforesaid two kinds of known technologies have the identical operations mode, the user is by stepping on or finishing brake or remove the operation of brake in the mode that toe is provoked pedal, though the mode of operation is easy, the Cao Fang of the work Shi They that provokes pedal with toe damages user's vamp easily.

Therefore, main order of the present utility model is the problem that will solve aforementioned known techniques, a kind of perambulator brake gear of processing ease is provided, and the brake gear that the utility model disclosed can be checked two trailing wheels of perambulator synchronously, and the function of " steps on dual brake " is provided.

According to the brake gear that the utility model disclosed, it includes:

A pair of brake daisy wheel is fixedly arranged on the left and right wheel of perambulator respectively and rotates synchronously with left and right wheel, and it has and radially is the fin that radiation-like is arranged at wheel;

One tool can be made the pedal of side-to-side motion, by the operating mode of swinging to the left or to the right, finishes brake or discharges the operation of braking;

One rotational type cam mechanism includes a rotating disc that is hubbed at perambulator, and aforesaid pedal is linked to rotating disc, rotates by wiggly mode driven rotary dish, will rotatablely move by cam path and be converted to the crank motion of straight line;

A pair of brake lever, include a left brake lever and a right brake lever, this end to brake lever all connects with aforesaid rotating disc and can be rotated the crank motion that coils interlock and make straight line along the direction of parallel wheel shaft, another free end by left and right brake lever inserts the wheel frame or the mode of extracting the wheel frame out, finishes the operation of braking or removing brake.

In first kind of embodiment of the present utility model, rotating disc is connected with an end of right brake lever with left brake lever respectively by a pair of connecting arm, in order to drive this makes straight line along the direction of parallel wheel shaft to brake lever crank motion.

And in second kind of embodiment of utility model, it then is the cam path that design has a pair of shape to be mutually symmetrical on rotating disc, one end of left side brake lever and right brake lever then is to be connected to this to cam path, rotating disc is made the crank motion of straight line along the direction of parallel wheel shaft by the left and right brake lever of cam path interlock in the process of swing, make another free end of left and right brake lever insert the wheel frame or the mode of extracting the wheel frame out, finish the operation of braking or removing brake.

Detailed technology content, embodiment and the effect thereof of relevant the utility model cooperate graphic being described as follows now:

Brief description of drawingsfig:

The 1st figure is the structure External view of the utility model, shows the marriage relation of brake gear and perambulator.

The 2nd figure is the structure decomposition map of first kind of embodiment of the utility model, shows the element of brake gear.

The 3rd figure is the diagram of work of first kind of embodiment, the position of components when showing brake.

The 4th figure is the diagram of work of first kind of embodiment, shows the position of components when normality is not braked.

The 5th figure is the structure decomposition map of second kind of embodiment of the utility model, shows the element of brake gear.

The 6th figure is the diagram of work of second kind of embodiment, shows the position of components when normality is not braked.

The 7th figure is the diagram of work of second kind of embodiment, the position of components when showing brake.

The 8th figure is another enforcement illustration of the utility model, shows the another kind of embodiment structure of the maintaining body of brake gear.

The 9th figure is the another enforcement illustration of the utility model, shows the another kind of embodiment structure of rotational type cam mechanism.

The 10th figure is the diagram of work of the embodiment of the 9th figure, shows the position of components when normality is not braked.

The 11st figure is the diagram of work of the embodiment of the 9th figure, the position of components when showing brake.

Embodiment:

See also " the 1st, 2 figure ", the brake gear that the utility model disclosed, it is preferable be provided with the position be configured in one of perambulator to the relevant position of trailing wheel (comprising left wheel 10a and right wheel 10b), in order to synchronously left wheel 10a and right wheel 10b braked or to remove the operation of brake, wherein left wheel 10a and right wheel 10b are hubbed at the two ends of a wheel shaft that maintains static 11 respectively in the mode that can rotate freely; The brake gear that the utility model proposed includes:

A pair of brake daisy wheel, comprise left side brake daisy wheel 20a and right brake daisy wheel 20b (seeing " the 3rd figure "), the two all has at the fin 21a that radially is being the radiation-like arrangement, this is to brake

daisy wheel

20a, 20b is fixedly arranged on the left and right wheel 10a of perambulator respectively, 10b and with left and

right wheel

10a, 10b rotates synchronously;

One can make the pedal 30 of side-to-side motion, and by the operating mode of swinging to the left or to the right, interlock one rotational type cam mechanism finishes brake or discharges the operation of brake; And

A pair of brake lever, include a left brake lever 50a and a right brake lever 50b, this is to brake lever 50a, the end 51a of 50b, 51b all is connected with aforesaid rotational type cam mechanism, and can be rotated formula cam mechanism interlock and make the crank motion of straight line along the direction of parallel wheel shaft 11, by left and right brake lever 50a, another free end 52a of 50b, 52b insert brake daisy wheel 20a, the fin 21a of 20b, 21b or extraction brake daisy wheel 20a, the fin 21a of 20b, the mode of 21b is braked or is removed the operation of brake.

Shown in " the 2nd figure ", in first kind of preferred embodiment of the present utility model, wheel shaft 11 is the vehicle frames 60 that are fixedly arranged on perambulator immovably, and rotational type cam mechanism includes a rotating disc 40 that is hubbed at perambulator, with a pair of connecting

arm

41a, 41b; Rotating disc 40 is an approaching semi-round sector ele-ment, have an axis hole 42 that is positioned at the center of circle and can be enclosed within a rotating shaft 71, and with rotating shaft 71 is the swing campaign that centre of gration is made left and right directions, connecting arm 41a, the end of 41b is the two ends 400a and the 400b of being separated by far away in the radial direction that is hubbed at rotating disc 40 respectively, and connecting arm 41a, the other end of 41b then is to be connected with the end of right brake lever 50b with left brake lever 50a respectively.

Shown in " the 3rd figure ", during brake, rotating disc 40 roughly is the level of state, this moment rotating disc 40 the two ends 400a and the 400b of being separated by far away in the radial direction, also (or be parallel to left and right brake lever 50a being parallel to wheel shaft 11, arrive on direction 50b) apart from rotating shaft 71 position farthest, simultaneously by connecting

arm

41a, 41b and with left and right brake lever 50a, another free end 52a of 50b, 52b push brake daisy wheel 20a, among the fin 21a of 20b, finish and check left and right wheel 10a, the operation of 10b synchronously.Otherwise, after rotating disc 40 deflections one angle (shown in " the 4th figure "), the two ends 400a and the 400b of being separated by far away in the radial direction of rotating disc 40, then can (or be parallel to left and right brake lever 50a being parallel to wheel shaft 11, arrive the position nearest on direction 50b) apart from rotating shaft 71, with left and right brake lever 50a, another free end 52a of 50b, 52b pull out brake daisy wheel 20a again, the fin 21a of 20b finishes the operation of synchronous release brake; Certainly in order to promote the operation ease when discharging brake, all right left and right brake lever 50a, the two ends of 50b are provided with compressible spring 90, in order to be compressed energy storage when braking, and can be when discharging brake with left and

right brake lever

50a, 50b pushes back to the position of not braking.

40 of rotating discs in the rotational type cam mechanism are to utilize a set casing 70 and be rotatably mounted in wheel shaft 11.Pedal 30 is and rotating disc 40 links, so that when stepping on pedal 30 about the operator, and the swing campaign (shown in " the 3rd, 4 figure ") about driven rotary dish 30 works.

Set casing 70 is a hollow component, at least has a rotating shaft 71, and in order to clamp together tong arm portion in wheel shaft 11, tong arm portion includes and is prolonging the direction extension that is parallel to wheel shaft 11 respectively, and be positioned at the left clamp arm 72a and the right clamp arm 72b of the radial symmetry position of rotating shaft 71, the central shaft hole 42 that its shaft 71 passes rotating disc 40 is fixed in wheel shaft 11 then, and rotating disc 40 serves as swing campaign about axle is done with this rotating shaft 71 just; Left clamp arm 72a and right clamp arm 72b are by three wall 73a that are connected with each other, 73b, the 73c definition, shape at its footpath section is to be a kind of nonocclusive ring-type, utilize one to be screwed together in wall 73a again, with the bolt 74 of 73c, just can be with wall 73a, be clipped in wheel shaft 11 tightly with 73c, and maintain static.

Pedal 30 has identical centre of gration with rotating disc 40, in first kind of embodiment, pedal 30 is to utilize an axis hole 300 to be enclosed within a button 75 of set casing 70, utilize a conjunction 31 (for example bolt or function fellow) to be linked to the periphery of rotating disc 40 again, when the user depresses the 32a of left wing or the right flank 32b of pedal 30, just can do the swing campaign by interlock rotating disc 40.

See also " the 5th figure ", in second embodiment of the present utility model, rotational type cam mechanism has a rotating disc 80 that is different from first embodiment, with two cam path 81a that are located at rotating

disc

80,81b, 30 on aforesaid pedal is linked to rotating disc 80 in a similar fashion, rotates by wiggly mode driven rotary dish 80, by cam path 81a, 81b will rotatablely move and be converted to the crank motion of straight line again.The center of circle of rotating disc 80 has an axis hole 82 equally, and at the cam path 81a of the radially bilateral symmetry position of

axis hole

82,81b, then be to extend along the direction of involute respectively, and a left side, right brake lever 50a, the end 51a of 50b, the then rectangular shape ground of 51b penetrates cam path 81a respectively, 81b, therefore, when rotating disc 80 is done the swing campaign of left and right directions, just can an interlock left side,

right brake lever

50a, 50b makes crank motion point-blank, cause a left side, right brake lever 50a, another free end 52a of 50b, 52b insert brake daisy wheel 20a, and the fin 21a of 20b carries out synchronous brake (shown in " the 7th figure "), or extract brake daisy wheel 20a out, the fin 21a of 20b and remove the operation (shown in " the 6th figure ") of brake.

Certainly, cam path 81a in the embodiment of " the 5th figure ", 81b, also can be transformed to a kind of camming surface 83a shown in " the 9th figure ", the design of 83b, these two

camming surface

83a, 83b is mutually symmetrical, and be to extend along the direction of involute respectively, when normality is not braked, can be through the ejection of spring 90, cause

camming surface

83a, 83b keeps and a left side, right brake lever 50a, one of 50b holds 51a, and 51b contacts (shown in " the 10th figure "), otherwise in normal danger, a left side, right brake lever 50a, one of 50b holds 51a, and 51b just can be by camming

surface

83a, 83b pushes, and make left, right brake lever 50a, another free end 52a of 50b, 52b insert brake daisy wheel 20a, the fin 21a of 20b carries out synchronous brake (shown in " the 11st figure "), and it is left at the same time, right brake lever 50a, one of 50b holds 51a, and 51b also will be absorbed in and lay respectively at camming surface 83a, the one depressed part 84a on the surface of 83b, 84b helps a left side by this,

right brake lever

50a, 50b temporarily maintain normal danger and are unlikely and get loose, until the 32a of left wing of user's push down on the pedal 30, just can return back to the situation shown in " the 10th figure " again.

For the effect that keeps braking, the utility model has also designed a maintaining body, shown in " the 3rd; 4 figure " or " the 6th; 7 figure ", the utility model is provided with a holding point 76 at the external peripheral surface of set casing 70, phase at pedal 30 then is provided with a halt point 33 to the inside, when pedal 30 is trampled position to brake (shown in " the 3rd, 7 figure "), by holding point 76 and halt point 33 snap action each other, and pedal 30 is maintained the position of brake, in order to avoid brake automatically is released and since holding point 76 and halt point 33 each other to engage strength limited, user's push down on the pedal 30 and discharging easily brakes.

In first kind of embodiment of " the 3rd, 4 figure ", holding point 76 is standing shape with halt point 33, but in second kind of embodiment of " the 6th, 7 figure ", holding point 76 is a recess, and 33 of halt points are the design of standing shape.

See also " the 8th figure " at last, maintaining body can also be provided with a pair of projecting point 34a by the right flank 32b at pedal 30, and 34b constitutes a jaw that just can vise right brake lever 50b and wheel shaft 11 by this, and pedal 30 is maintained the position of brake, in order to avoid brake automatically is released.

Though the utility model is preferable with the foregoing description; but be not in order to limit the utility model; anyly be familiar with this operator; in the spirit and scope that do not break away from the utility model; when can doing a little change and retouching, so the protection domain of the utility model should be as the criterion with the scope that claims were defined.

The diagrammatical symbol explanation:

Left wheel 10a

Right wheel 10b

Wheel shaft 11

Left brake daisy wheel 20a

Right brake daisy wheel 20b

Fin

21a, 21b

Pedal 30

Axis hole 300

Conjunction 31

The 32a of left wing

Right flank 32b

Halt point 33

Projecting point 34a, 34b

Rotating disk 40

The two ends 400a of being separated by far away in the radial direction of rotating disc, 400b

Connecting

arm

41a, 41b

Axis hole 42

Left side brake lever 50a

Right brake lever 50b

Brake

rod end

51a, 51b

Brake lever free end 52a, 52b

Vehicle frame 60

Rotating shaft 71

Set casing 70

Left clamp arm 72a

Right clamp arm 72b

Wall

73a, 73b, 73c

Bolt 74

Button 75

Holding point 76

Rotating disc 80

Cam path 81a, 81b

Axis hole 82

Camming surface

83a, 83b

Depressed part

84a, 84b

Spring 90

Claims

1, a kind of brake gear of perambulator is configured in the position relevant to trailing wheel with one of perambulator, in order to synchronously the pair of rear wheels that is hubbed at a wheel shaft braked or to remove the operation of brake, it is characterized in that it includes:

A pair of brake daisy wheel is fixedly arranged on this trailing wheel respectively, and the two all has a plurality of at the fin that radially is being the radiation-like arrangement;

A pair of brake lever can be made the crank motion of straight line along the direction of parallel this wheel shaft, makes this insert or extract out the fin of this brake daisy wheel to a free end of brake lever;

One rotational type cam mechanism, but be hubbed at the rotating disc of perambulator with having a swing, and this rotating disc and be connected with this brake lever is made the crank motion of straight line in order to this brake lever of interlock; And

One pedal includes a right flank and left wing, rotatably is hubbed at this rotational type cam mechanism, can make the mode of side-to-side motion, and this rotating disc swing of interlock is finished brake or discharged the operation of brake.

2, according to the brake gear of the described perambulator of claim 1, it is characterized in that this rotational type cam mechanism also includes a set casing that is fixedly arranged on this wheel shaft, this set casing then is provided with a rotating shaft, and this rotating disc then is hubbed at this rotating shaft rotation.

3, according to the brake gear of the described perambulator of claim 2, it is characterized in that this set casing is a hollow component, have in order to clamp together tong arm portion in this wheel shaft, this tong arm portion includes respectively extends along the direction that is parallel to this wheel shaft, and is positioned at a left clamp arm and a right clamp arm of the radial symmetry position of this rotating shaft.

4, according to the brake gear of the described perambulator of claim 3, it is characterized in that this left clamp arm and right clamp arm are made of three walls that are connected with each other, the shape of its footpath section is a kind of nonocclusive ring-type, utilize a bolt of the two relatively that is screwed together in this wall again, and make this left clamp arm and right clamp arm be clipped in this wheel shaft tightly, and maintain static.

5,, it is characterized in that this rotating disc is connected with an end of this brake lever by the connecting arm of a pair of pivot joint according to the brake gear of the described perambulator of claim 2.

6, according to the brake gear of the described perambulator of claim 5, it is characterized in that this rotating disc is an approaching semi-round sector ele-ment, have an axis hole that is positioned at the center of circle and can be enclosed within a rotating shaft, and with this rotating shaft is the swing campaign that centre of gration is made left and right directions, and an end of this connecting arm is hubbed at the two ends far away that are separated by in the radial direction of this rotating disc respectively.

7, according to the brake gear of the described perambulator of claim 1, it is characterized in that having a cam path respectively in the position in the radially bilateral symmetry center of circle of this rotating disc, this cam path extends along the direction of involute respectively, and the then rectangular shape ground of an end of this brake lever penetrates this cam path respectively.

8,, it is characterized in that an end of this brake lever also is provided with a spring, in order to this brake lever is pushed back to the position that discharges brake according to the brake gear of the described perambulator of claim 1.

9, according to the brake gear of the described perambulator of claim 1, the position that it is characterized in that the radially bilateral symmetry center of circle of this rotating disc has a camming surface respectively, this cam path extends along the direction of involute respectively, makes the crank motion of straight line in order to this brake lever of ejection.

10, according to the brake gear of the described perambulator of claim 9, the surface that it is characterized in that this camming surface also has a depressed part that just can embed for one of this left and right brake lever end respectively, helps this left and right brake lever temporarily to maintain normal danger by this and is unlikely and gets loose.

11, according to the brake gear of the described perambulator of claim 1, it is characterized in that it is provided with a maintaining body, it includes: a holding point of being located at circumferential surface outside this set casing, an and phase halt point to the inside of being located at this pedal, when this pedal by trample to the brake the position time, by this holding point and this halt point snap action each other, and this pedal is maintained the position of brake.

12,, it is characterized in that this holding point and this halt point are standing shape according to the brake gear of the described perambulator of claim 11.

13, according to the brake gear of the described perambulator of claim 11, it is characterized in that this holding point is a recess, this halt point then is a standing shape.

14, according to the brake gear of the described perambulator of claim 1, it is characterized in that this pedal right flank is provided with a pair of projecting point, constitute a jaw that just can vise this car bar and this wheel shaft by this, and this pedal is maintained the position of brake.