TWI630134B - Anti-backward device for stroller - Google Patents

Abstract

An anti-backward tilting device for a stroller, comprising: a clamping fixing portion fixed to a rear caster of the stroller; and a support rod main body axially coupled to the clamping fixing portion and opposite to the clamping The fixing portion swings up and down to keep the support rod main body perpendicular to the ground. The anti-backward tilting device of the stroller of the present invention prevents the baby from leaning backward when the weight of the article is applied to the rear of the stroller or the baby driver's handle is applied by a backward force. The car continues to tip over and overturn, which increases the safety of the baby in the stroller.

Description

Anti-backward device for stroller

The invention relates to the technical field of baby carriages, and particularly relates to an anti-backward tilting device for a baby carriage.

Modern people are rich and busy, and they have frequent needs after giving birth to children. In the contemporary era of double pay and core families, baby strollers have become one of the necessary tools in every family, making it easy for parents to move outdoors with their children. The burden of parents.

When the baby is in the stroller, it is necessary to check the safety of the baby. When there are too many items to carry or purchase, the item will be hung on the stroller handle of the stroller or placed in the storage bag behind the stroller. Or the baby driver is forced by a force that is applied to the rear of the stroller, which will cause the stroller to tip over and cause injury to the baby.

In view of the above problems, an object of the present invention is to provide a stroller anti-backward device that causes a rear of a stroller when the weight of the article is applied to the rear of the stroller or the baby rider is subjected to a rearward force. Tilting, the anti-backward device prevents the stroller from continuing to tilt backwards, which increases the safety of the baby in the stroller.

An aspect of the present invention provides a stroller prevention device for a stroller, comprising: a clamping fixing portion fixed to a rear caster of the stroller; A support rod main body is axially coupled to the clamp fixing portion and swings up and down with respect to the clamp fixing portion to keep the support rod main body perpendicular to the ground.

According to an aspect of the present invention, the clamping and fixing portion includes: a clamping and fixing body having a clamping fixing side and a clamping knob side, the clamping fixing side of the clamping fixing body abutting against the rear a side of the wheel stand; and a clamping movable plate disposed between the clamping fixed side of the clamping fixed body and the clamping knob side, one of the clamping movable plates clamping the threaded link through a through hole on the side of the clamping knob of the clamping fixed body is screwed together with a clamping knob on the side of the clamping knob of the clamping fixed body, and the clamping is driven to rotate the clamping The clamping threaded link of the movable plate moves in the through hole of the clamping knob body on the side of the clamping knob, so that the clamping movable plate and the clamping fixed side of the clamping fixed body are clamped or loosened. Rear wheel stand.

According to an aspect of the present invention, a guide plate is disposed between the clamping fixed side of the clamping fixed body and the clamping knob side, and a movable rail slot is disposed on one side of the clamping movable plate. The movable panel slides on the guide plate in the movable rail slot.

According to an aspect of the present invention, the clamping fixing portion further includes a locking cover, the clamping knob passes through the through hole of the locking cover, and the locking cover is locked to the clamping knob side of the clamping fixing body On the outside, the clamping knob is fixed to the outside of the clamping knob side of the clamping fixed body.

According to an aspect of the present invention, the support rod body includes: a link side portion, a tongue of the clamp fixed side of the clamp fixed body, and a weight threaded link; a side portion connected to the clamping fixing portion; and a supporting side portion that is perpendicular to the ground when the shaft connecting side portion swings up and down at an axial joint thereof with the clamping fixing portion.

According to an aspect of the invention, the support rod body further includes a weight, and the weight is screwed to the weight threaded link.

10‧‧‧ baby carriage

12‧‧‧ Rear wheel stand

14‧‧‧Anti-backward device

16‧‧‧Clamping and fixing department

18‧‧‧Support rod body

20‧‧‧Clamping fixed body

22‧‧‧Clamping movable board

24‧‧‧Clamping knob

26‧‧‧Lock cover

30‧‧‧Clamping fixed side

32‧‧‧Clamping knob side

34‧‧‧Clamping threaded connecting rod

36‧‧‧through hole

38‧‧‧ Guide

40‧‧‧ tongue

42‧‧‧through hole

43‧‧‧ screws

44‧‧‧Active rail slot

46‧‧‧Link side

48‧‧‧Axis side

50‧‧‧Support side

52‧‧‧weights

54‧‧‧weight threaded connecting rod

56‧‧‧Fixed rivets

58‧‧‧through hole

60‧‧‧through hole

62‧‧‧through hole

1 is a perspective view of a stroller with an anti-rollback device of the present invention; FIG. 2 is a perspective view of the anti-backward device of the present invention; FIG. 3 is an exploded view of the anti-backward device of the present invention; FIG. 5 is a schematic view of a clamping movable plate of the anti-backward device of the present invention; FIG. 6 is a schematic view of the baby carriage with anti-backward device according to the present invention; A schematic diagram of a state in which the vehicle is not tilted backward; and FIG. 7 is a schematic view of the stroller with the anti-rollback device of the present invention in a back tilted state.

The present invention will be further understood by those of ordinary skill in the art to which the present invention pertains. .

1 is a perspective view of a stroller with an anti-rollback device of the present invention. In FIG. 1, the rear caster 12 of the stroller 10 is provided with an anti-rollback device 14. In the present embodiment, the rear caster 12 of the stroller 10 is provided with two sets of anti-backward tilting devices 14, but the number of anti-reverse tilting devices 14 is not limited to two groups, and the set of the stroller can be set to one set and three. Any group of anti-rollback devices 14 such as groups, etc. are all within the scope of the claims of the present invention.

2 is a perspective view of the anti-rollback device of the present invention, and FIG. 3 is an exploded view of the anti-rollback device of the present invention. In FIGS. 2 and 3, the anti-rollback device 14 includes a clamp fixing portion 16 and a support rod main body 18. After the clamp fixing portion 16 fixes the stroller 10 On the caster 12, the support rod main body 18 is axially coupled to the clamp fixing portion 16, and is swung up and down with respect to the shaft joint with the clamp fixing portion 16, and the gravity center urges the support rod main body 18 to be perpendicular to the ground.

The clamping and fixing portion 16 includes a clamping and fixing body 20, a clamping movable plate 22, a clamping knob 24 and a locking cover 26. The clamping fixed body 20 has a clamping fixed side 30 and a clamping knob side 32 that abuts the clamping fixed side 30 of the fixed body 20 against one side of the rear wheel housing 12.

The clamping flap 22 is placed between the clamping fixed side 30 of the clamping fixed body 20 and the clamping knob side 32. One of the clamping movable plates 22 clamps the threaded link 34 (as shown in the schematic view of the clamping movable plate of the anti-backward device of the present invention) through the clamping knob side 32 of the clamping and fixing body 20. The hole 36 (shown in FIG. 4 is a schematic view showing a part of the structure of the clamp fixing portion of the anti-backward device of the present invention), the external thread of the clamp screw link 34 and the clamping knob side 32 of the clamp fixed body 20 The internal threads of the outer clamping knob 24 are screwed together, and by rotating the clamping knob 24 to drive the clamping threaded link 34 of the clamping movable plate 22 to the clamping knob side 32 of the clamping fixed body 20 The hole 36 is moved to clamp or loosen the rear movable frame 22 to the clamp fixed side 30 of the clamp fixed body 20.

A guide plate 38 (shown in FIG. 4) is disposed between the clamped fixed side 30 and the clamp knob side 32 of the clamped fixed body 20, and a tongue 40 is disposed outside the clamped fixed side 30 of the clamped fixed body 20. One side of the clamping movable plate 22 is provided with a movable rail groove 44, and the guide plate 38 is placed in the movable rail groove 44 of the clamping movable plate 22, and the clamping movable plate 22 can be on the guide plate 38 in the movable rail groove 44 thereof. slide.

When the clamping screw link 34 is screwed together with the clamping knob 24, the clamping knob 24 passes through the through hole 42 of the locking cover 26, and the locking cover 26 is locked to the clamping fixing body 20 by the screw 43. The outside of the knob side 32, the clamping knob 24 is fixed to the clamping fixed body 20 The clamping knob side 32 is outside.

Referring again to FIGS. 2 and 3, the support rod body 18 includes a link side portion 46, a shaft side portion 48, a support side portion 50, and a weight 52. The link side portion 46 of the support rod body 18 can abut the tongue 40 of the clamp fixed side 30 of the fixed body 20 and is provided with a counterweight threaded link 54. The fixing rivet 56 passes through the through hole 58 of the shaft side portion 48 of the support rod main body 18, the through hole 60 of the clamp main body 20, and the through hole 62 of the guide plate 38, and the shaft side portion 48 of the support rod main body 18 is attached. The shaft is coupled to the clamp fixed body 20. When the pivoting side portion 48 of the support rod main body 18 swings up and down at its axial joint with the clamp fixed body 20, the support side portion 50 extending on the axial side portion 48 of the support rod main body 18 is retained by the gravity The ground is vertical. The weight 52 is screwed to the weight threaded link 54 of the link side portion 46 of the support rod body 18, and the weight 52 increases the weighted threaded link 54 to the axially connected side portion 48 of the shaft support rod body 18 and The moment at which the shaft joint of the fixed body 20 is clamped.

FIG. 6 is a schematic view of the stroller with anti-backward tilting device of the present invention in a state of no backward tilting, and FIG. 7 is a schematic view of the stroller with anti-back tilting device of the present invention in a backward tilting state. In FIG. 6, the stroller 10 is in a non-rearward state, and the support side portion 50 of the support side portion 48 of the support bar main body 18 is intended to remain perpendicular to the ground due to gravity, in order to avoid the support side of the support bar main body 18. The portion 50 is in contact with the ground to cause the resistance of the stroller 10 to be pushed by the link side portion 46 of the support rod main body 18 against the tongue 40 on the outer side of the clamp fixed side 30 of the clamp fixed body 20 (as shown in FIG. 2). The support side portion 50 of the support rod main body 18 forms an angle with the direction of the vertical ground such that the support side portion 50 of the support rod main body 18 does not come into contact with the ground.

Fig. 7 is a schematic view showing the stroller with the anti-rollback device of the present invention in a backward tilting state. In FIG. 7, for example, when there are too many items to be carried or purchased, the items are hung on the handlebar of the stroller 10 or placed in a pocket behind the stroller 10, or an infant. The driver applies a force to the rear, so that the force is applied to the rear of the stroller 10, causing the stroller 10 to lean backward, and the stroller 10 is gradually tilted backward to support the support side 50 of the lever body 18 due to gravity. Keeping perpendicular to the ground, the stroller 10 is tilted back until the support side 50 of the support bar body 18 is in contact with the ground, and the support force acting on the ground by the support side 50 of the support bar body 18 supports the stroller 10 to no longer continue to lean backward. Overturning can increase the safety of the baby in the stroller 10.

The weight 52 of the weighted threaded link 54 screwed to the link side portion 46 of the support rod body 18 increases the weighted threaded link 54 to the axially connected side portion 48 of the shafting support rod body 18 and the clamped fixed body The torque of the shaft joint of 20 is appropriately selected by the weight of the weight 52 to increase the aforementioned moment, and the support side 50 of the support rod main body 18 is swung without being perpendicular to the ground when the stroller 10 is tilted backward, and the weight 52 The increased torque can shorten the swing time of the support side 50 of the support bar main body 18 perpendicular to the ground, and can further increase the safety of the infant riding the stroller 10.

The present invention provides an anti-backward tilting device for a stroller, which has the advantage that when the weight of the article is applied to the rear of the stroller or the baby rider is subjected to a rearward force to cause the stroller to lean backward, the anti-backward The tilting device prevents the stroller from continuing to tilt backwards, which increases the safety of the baby in the stroller.

The present invention has been described above with reference to the preferred embodiments and the accompanying drawings, and should not be considered as limiting. Various modifications, omissions and changes may be made without departing from the scope of the claims of the invention.

Claims (6)

An anti-backward tilting device for a stroller, comprising: a clamping fixing portion fixed to a rear caster of the stroller; and a support rod main body axially coupled to the clamping fixing portion and opposite to the clamping The fixing portion swings up and down to keep the support rod main body perpendicular to the ground. The anti-rollback device of the stroller of claim 1, wherein the clamping fixing portion comprises: a clamping fixing body having a clamping fixing side and a clamping knob side, the clamping of the clamping fixing body a side of the fixed side abutting the rear wheel stand; and a clamping movable plate disposed between the clamping fixed side of the clamping fixed body and the side of the clamping knob, the clamping movable plate is clamped a tightening threaded rod passes through a through hole of the clamping knob side of the clamping fixed body and is screwed together with a clamping knob outside the clamping knob side of the clamping fixing body, by rotating the clamping The knob moves the clamping threaded link of the clamping movable plate in the through hole of the clamping knob body of the clamping fixed body to fix the clamping movable plate and the clamping fixed body Side clamp or loosen the rear caster. The anti-backward tilting device of the stroller of claim 2, wherein a guide plate is disposed between the clamping fixed side and the clamping knob side of the clamping fixed body, and one side of the clamping movable plate is provided with an activity a rail slot that slides on the guide plate in the movable rail slot. The anti-backward tilting device of the baby carriage of claim 2, wherein the clamping fixing portion further comprises a locking cover, the clamping knob passes through the through hole of the locking cover, and the locking cover is locked to the clamping fixed body The clamping knob is disposed on the outer side of the clamping knob so that the clamping knob is fixed to the outside of the clamping knob side of the clamping fixed body. The anti-rollback device of the stroller of claim 2 or 3, wherein the support rod body comprises: a link side portion, a tongue against the outer side of the clamp fixed side of the clamp fixed body, And a weighted threaded connecting rod; a shaft connecting side portion, the shaft is connected to the clamping fixing portion; and a supporting side portion, when the shaft connecting side portion swings up and down at an axial joint thereof with the clamping fixing portion The support side remains perpendicular to the ground. The anti-rollback device of the stroller of claim 5, wherein the support bar body further comprises a weight, the weight being screwed to the weight threaded link.