CN103192907B - Seat belt bumpers for child bike seats - Google Patents

Abstract

The invention discloses a safety belt buffer of a bicycle child chair, wherein one end of a safety belt shoulder belt of a chair seat is fixedly arranged on a chair seat part, and the other end of the safety belt shoulder belt of the chair seat is fixedly arranged on a chair seat back part by a buffer; the length of the shoulder belt is changed by the buffer through the displacement of the connecting rod and the elastic element provides elastic margin, so that the connecting rod is pushed by the elastic element to contract inwards when the bicycle runs normally to limit the length distance between the shoulder belt and the seat part and the back perforation, and the connecting rod is drawn by the linkage element to compress the elastic element to increase the length of the shoulder belt when the bicycle runs, thereby achieving the purpose of directly pressing the buffer shoulder belt on the chest of a child.

Description

Seat belt bumpers for child bike seats

technical field

The invention relates to a child bicycle chair provided with a safety belt, in particular to a child bicycle chair with a cushioning function of the safety belt.

prior art

General bicycle child chairs are set on the rear seat of the bicycle to carry young children. Based on the safety considerations of young children, they can sit safely on the seat. Usually, bicycle child seats are equipped with safety belts. It can be effectively fixed on the seat on the young child, so as to greatly increase the safety of the young child when the bicycle is running.

As shown in Figure 1, it shows the configuration of the safety belt 12 of a common bicycle child chair 10. The safety belt 12 of the general bicycle child chair 10 mainly has two shoulder straps 121 fixed on the upper back of the seat 11 and two shoulder straps 121 fixed on the seat. Two waist belts 122 at the waist of the seat 11, and a fixing belt 123 for centrally fixing the shoulder belt 121 and the waist belt 122 by being fixed on the seat portion of the seat 11; Two upper perforations 111 and two lower perforations 112 on both sides, the two ends of the shoulder strap 121 are respectively inserted into the upper and lower perforations 111, 112, and then extended to the front of the seat 11 and combined with the fixing belt 123 to form a fixed point A. In this way, the middle section of the shoulder strap 121 is wound around and pressed on the back of the seat 11 to form a fixed point B, so that the shoulder strap 121 is combined and fixed on the seat 11 .

It is worth noting that when the bicycle brakes, the natural reaction of the human body is to rush forward, and the forward force depends on the strength of the braking force, especially the forward force of the rear seat passengers will be greater than that of the front seat passengers. However, For example, the safety belt 12 of the ordinary bicycle child chair 10 is fixed at the distance between the two fixed points A and B, and in order to prevent young children from moving and breaking free or falling asleep after falling asleep, the ordinary safety belt 12 does not have any margin of flexibility;

Therefore, when the bicycle is braked, the young child who is bound on the seat 11 by the safety belt 12 is very likely to be slightly pressed on the body by the safety belt 12 that is originally placed on the body to further compress the chest and cause discomfort due to the forward movement. The force during emergency braking is more likely to instantly tighten the safety belt of ordinary bicycle child chairs and directly cause serious compression injuries to immature children. Therefore, ordinary bicycle child chairs have room for improvement.

Contents of the invention

In order to solve the above-mentioned shortcomings, the present invention provides a combination structure of a bicycle child seat and a seat belt without elastic margin, so as to avoid the seat belt from directly pressing on the body of the child when braking.

The invention provides a safety belt buffer for a bicycle child chair, which mainly fixes one end of the safety belt of the bicycle child chair on the front of the seat by means of a male and female buckle structure, and the other end is connected with a seat belt fixed on the back of the seat. Buffer assembly, whereby, when the bicycle brakes to make the child's body rush forward, the seat belt can provide an elastic margin through the buffer, so as to reduce the force of the seat belt directly pressing on the child, avoiding Unnecessary compression discomfort or pressure injury.

A safety belt buffer for a bicycle baby chair, which mainly includes a seat belt with a safety belt, the safety belt has two shoulder straps, one end of the two shoulder straps is fixed on the seat portion of the seat, and the other ends are respectively worn Set the seat and fix it on the back of the seat by means of two buffers, wherein each buffer includes:

The main body is fixed on the back of the seat, and its interior is hollow to form a container, and a through hole is opened at the bottom of the container;

A connecting rod is accommodated in the container of the body and has two ends, one end is shaped as a limiting plate located inside the container, and the other end is shaped as a coupling column and protrudes outside the body;

An elastic member is accommodated in the body cavity and sleeved on the outside of the connecting rod. One end of the elastic member abuts against the limit plate of the connecting rod, and the other end abuts against the bottom of the accommodating groove;

A link has two sections, one section is provided with a through hole for the connecting column of the connecting rod to be inserted and fixed, and the other section is provided with a penetration hole for the shoulder belt of the safety belt to be inserted.

The seat belt buffer of the bicycle child chair mentioned above, wherein, the inside of the body is shaped as a channel structure and runs through both ends, the inner walls of the openings at both ends of the body are respectively provided with an internal thread, and a locking member is provided at one end of the channel of the body. An external thread is provided on the outside of the part and engages with one of the internal threads of the body, and a stopper is provided with an external thread on the outside to engage with the other internal thread of the body, and the stopper is formed with the through hole for the The connecting rod is combined with the post to protrude through.

The seat belt buffer of the bicycle child chair, wherein, the inside of the body is shaped as a tunnel structure and runs through both ends, an internal thread is provided on the inner wall of the opening of one end of the body, and a limiter is provided with an external thread on the outside and connected to the body. The inner thread engages to form the receiving groove of the body, and the limiting part is formed with the through hole protruding through the coupling column of the connecting rod, so that a locking part is locked with the coupling column, and the linking part is pressed on Between the locking part and the limiting part.

In the safety belt buffer of the child seat for bicycles, a spacer is respectively provided between the linking part, the limiting part and the locking part.

The seat belt buffer of the bicycle child chair, wherein, the coupling column of the connecting rod is shaped as a column structure with threads on the surface, and the locking part is formed with a screw hole, so that the coupling column of the connecting rod passes through the The screw hole of the lock piece and engage with it.

In the safety belt buffer of a bicycle baby chair, an internal thread is provided on the inner wall of the opening of the body cavity, and an external thread is provided on the outside of a locking member to engage with the internal thread of the body.

The safety belt buffer of the child bicycle chair, wherein, the back of the seat is provided with two sets of holes on both sides of the two shoulder straps, and two locking holes are provided on the outer side of each buffer body. Make the four locking parts pass through the seat assembly hole respectively and lock with the locking hole of the buffer body.

In the safety belt buffer of the bicycle baby chair, a convex rib is formed on the outer side of the main body, and the two locking holes are arranged on the convex rib.

The safety belt buffer of the bicycle child chair, wherein, there is a clamping part assembled between the linking parts of the buffer and the shoulder belt of the safety belt, and the clamping part is formed with two perforations, the A rib is formed between the two perforations, and the shoulder belt is passed through the two perforations of the clamping part and is wound around the rib, so that each of the shoulder belts is passed through the through hole of the linking part and the back of the seat Two sets of holes on both sides are provided, and then the clamping part is pulled by the shoulder strap and rests on the linking part, so as to combine the shoulder strap and the buffer.

The safety belt buffer of the bicycle child chair, wherein the safety belt is composed of a fixing belt, two waist belts and the two shoulder belts, one end of the fixing belt is fixed on the seat portion of the seat, and the other end is provided with a buckle One end of the two waist belts is fixed on both sides of the back of the seat, and the other end is used for buckling combination with the fastening parts of the fixing belt. One end of the two shoulder belts is fixed with the buffer, and the other end is used for the fixing. Strap closure snaps together.

Thereby, the shock absorber changes the length of the shoulder belt of the safety belt through the displacement of the connecting rod along the body, and provides an elastic margin by the elastic member, so that when the bicycle is running normally, the connecting rod is the elastic member against It is retracted inside the buffer body to limit the length of the safety belt shoulder strap from the seat part to the back hole. When the bicycle brakes and the child's body rushes forward to drive the shoulder strap, the shoulder strap can pass through. The linkage part of the buffer pulls the connecting rod and compresses the elasticity, thereby changing the length and distance of the shoulder straps, so that the buffer shoulder straps are directly pressed against the chest of the child and avoid unnecessary injuries to the child.

Description of drawings

Fig. 1 is a schematic diagram of the safety belt assembly structure of an ordinary bicycle child chair;

Fig. 2 is an exploded schematic diagram of a child bicycle chair and a buffer of the present invention;

Fig. 3 is a schematic diagram of the structural appearance of the combination of the safety belt and the buffer of the bicycle child seat of the present invention;

Fig. 4 is the exploded schematic view of the three-dimensional structure of the buffer of the present invention;

Fig. 5 is a schematic diagram of the use state of the safety belt and the human body in the normal state of the bicycle in the present invention;

Fig. 6 is a schematic cross-sectional view of the structure of the buffer of the present invention in the state of Fig. 5;

Fig. 7 is a schematic diagram of the use state of the safety belt and the human body in the bicycle emergency braking state of the present invention;

Fig. 8 is a schematic cross-sectional view of the structure of the buffer of the present invention in the state of Fig. 7;

Fig. 9 is a schematic cross-sectional view of another structural aspect of the buffer body of the present invention.

Explanation of reference signs

"ordinary"

10 is a bicycle child chair 11 is a seat

111 is the upper perforation 112 is the lower perforation

12 is seat belt 121 is shoulder strap

122 is a belt 123 is a fixed belt

A is a fixed point B is a fixed point

"this invention"

20 is the chair seat 21 is the back

211 is a perforation 212 is a set hole

22 is the seat

30 is a seat belt 31 is a fixed belt

311 is a buckle 32 is a belt

33 is shoulder strap

40 is the buffer 41 is the body

411 is a container 412 is an internal thread

413 is internal thread 414 is convex rib

415 is the locking hole 416 capacity slot

417 is a through hole 42 is a locking piece

421 is external thread 43 is connecting rod

431 is a limit plate 432 is a combination column

44 is an elastic part 45 is a limiting part

451 is a through hole 452 is an external thread

46 is a linking piece 461 is a through hole

462 is a piercing hole 463 is a gasket

464 is a gasket 47 is a locking piece

471 is screw hole

50 is the locking piece

60 is card parts 61 is perforation

62 is rib

H is the height distance H h is the buffer distance

Detailed ways

First of all, please refer to FIG. 2, a preferred embodiment of a safety belt buffer for a child bicycle chair provided by the present invention, which mainly includes a seat belt 30 provided on a seat 20, and the seat 20 has a back 21 and a seat portion 22, the safety belt 30 has two shoulder straps 33, one end of the two shoulder straps 33 is fixed on the seat portion 22 of the seat 20, and the other end is respectively passed through the two perforations 211 on the back 21 of the seat 20 and Two buffers 40 are fixed behind the back 21 of the seat 20, and each buffer 40 includes a main body 41, a connecting rod 43, an elastic member 44, a limiting member 45, a linking member 46 and a locking Item 47, of which:

The main body 41 is fixed on the back 21 of the seat 20, and its interior is hollow and formed as a channel structure passing through both ends of the main body 41. The inner walls of the openings at both ends of the main body 41 are respectively provided with internal threads 412, 413 and a locking member 42. It is located at one end of the channel of the body 41, and the locking member 42 is provided with an external thread 421 to engage with one of the internal threads 412 of the body 41;

In this embodiment, a protruding rib 414 is formed on the outer side of the body 41, and the protruding rib 414 is provided with two locking holes 415, and the back 21 of the seat 20 is respectively provided on both sides of the two shoulder straps 33. There are two sets of holes 212, so that the four locking pieces 50 are respectively inserted into the sets of holes 212 of the seat 20 and locked with the locking holes 415 of the buffer 40 body 41;

The connecting rod 43 is accommodated in the cavity 411 of the body 41 and has two ends, one end is shaped as a limiting disc 431 at the bottom of the cavity 411, and the other end is shaped as a coupling column 432 protruding from the cavity 411 opening;

The elastic member 44 is accommodated in the cavity 411 of the main body 41 and sleeved on the outside of the connecting rod 43. One end of the elastic member 44 abuts against the limit disc 431 of the connecting rod 43 to provide an elastic margin. ;

The limiting member 45 is assembled on the opening of the housing 411 of the body 41 and abuts against the elastic member 44, and the limiting member 45 has a through hole 451 for the connecting rod 42 to protrude from the coupling column. 432; in this embodiment, an external thread 452 is provided on the outside of the limiting member 45 to engage with the other internal thread 413 of the body 41;

The linkage 46 has two sections in an L-shaped structure, one section has a through hole 461 for the connecting column 432 of the connecting rod 43 to pass through, and the other section has a through hole 462 for the safety belt 30. The shoulder strap 33 is inserted and combined, and a spacer 463, 464 is respectively provided between the linking part 46, the limiting part 45 and the locking part 47;

The locking part 47 is formed with a screw hole 471, and the connecting column 432 of the connecting rod 43 is shaped as a column structure with threads on the surface, so that the connecting rod 43 connecting column 432 passes through the screw hole of the locking part 47 471 and engaged with it, the linkage 46 is pressed between the locking member 47 and the limiting member 45;

Thereby, the buffer 40 is displaced along the body 41 through the connecting rod 43, and the elastic margin of the elastic member 44 is used to change the shoulder belt 33 of the seat belt 30 from the seat portion 22 of the seat 20 to the back 21 of the hole. The length distance between 211.

In addition, as shown in FIG. 9 , it illustrates the embodiment in which the stopper 41 of the buffer 40 of the present invention is directly integrally formed on the body 41; A through hole 417 is provided at the bottom of the groove 416, so that the connecting rod 43 is accommodated in the containing groove 416, and the coupling post 432 of the connecting rod 43 protrudes from the through hole 471 to the outside of the body 41 to be assembled with the linkage 46. Next, the limiting disc 431 is accommodated in the cavity 416 , and one end of the elastic member 44 abuts against the limiting disc 431 , and the other end abuts against the peripheral side of the through hole 417 .

The above is the description of the main components and configurations of the embodiment of the present invention. As for the operation mode and function of the preferred embodiment of the present invention, the following description will be made.

Please refer to FIG. 2 for further cooperation. The safety belt 30 of the bicycle child chair of the present invention is composed of a fixing belt 31, two waist belts 32 and the two shoulder belts 33. One end of the fixing belt 31 is fixed on the seat portion of the seat 20. 22, the other end is provided with a fastening piece 311, one end of the two waist belts 32 is fixed on both sides of the back 21 of the seat 20, and the other end is used for buckling combination with the fastening piece 311 of the fixing belt 31, and the two shoulder belts 33 are One end is fixedly connected to the buffer 40 , and the other end is used for buckling combination with the fastening part 311 of the fixing belt 31 .

Please refer to Figures 5 to 8 for the operation mode of the safety belt buffer of the bicycle child seat of the present invention. There is a height distance H between the position 211 and the limit plate 431 of the connecting rod 43 of the buffer 40, so as to provide a distance space for the buffer 40 to be pulled by the safety belt 30, and the seat 20 is perforated 211 to the buffer. There is a buffer distance h between the linkages 46 of the device 40, and the buffer distance h changes with the position of the linkages 46;

As shown in Figures 5 and 6, it is to illustrate the state relationship between the young child's body, the shoulder belt 33 and the buffer 40 when the bicycle is running normally. On the back 21 of the seat 20, and the shoulder belt 33 is lightly pressed on the body of the young child, as shown in Figure 6, at this time, the connecting rod 43 limit plate 431 of the buffer 40 is pressed against by the elastic member 44 and retracted In the body 41 of the buffer 40, the shoulder strap 33 has a length from the seat portion 22 of the seat 20 to the perforation 211 of the back 21;

When the bicycle brakes and the child's body rushes forward, as shown in Figures 7 and 8, the child's body will press against the shoulder belt 33, and then the traction shoulder belt 33 will pull the link 46 of the buffer 40, and then connect Moving the connecting rod 43 compresses the elastic member 44 and extends from the through hole 451 of the limiting member 45 to protrude from the main body 41, so that the linking member 46 can be displaced and compressed by the buffer distance h, and the compressed distance is increased to the The length distance between the shoulder strap 33 from the seat portion 22 of the seat 20 to the perforation 211 of the back 21 is to avoid the unnecessary injury that the shoulder strap 33 may cause when the shoulder strap 33 is directly pressed against the chest of the child without buffering.

In addition, please refer to Figure 8 again, the buffer 40 of the present invention and the shoulder belt 33 of the safety belt 30 are assembled through a clamping part 60, as shown in the figure, the clamping part 60 is formed with two perforations 61, and the two perforations A rib 62 is formed between the 61, and the shoulder strap 33 is passed through the two perforations 61 of the clamping part 60 and is wound around the rib 62, so that each shoulder strap 33 is passed through the interlocking part 46. Hole 462 and the two sets of holes 212 on both sides of the back 21 of the seat 20, the clamping part 60 is pulled by the shoulder belt 33 and placed on the side of the through hole 462 of the linking part 46, so as to combine the shoulder belt 33. Belt 33 and the buffer 40 , and increase the combined structural strength of the shoulder belt 33 and the linkage 46 .

Claims (10)

1. A safety belt buffer for a bicycle baby chair, characterized in that: a seat is provided with a safety belt, the safety belt has two shoulder straps, and one end of the two shoulder straps is fixed on a seat portion of the seat , and the other ends are respectively pierced through the seat and fixed on the back of the seat by means of two buffers, wherein each buffer includes: The main body is fixed on the back of the seat, and its interior is hollow to form a container, and a through hole is opened at the bottom of the container; A connecting rod is accommodated in the container of the body and has two ends, one end is shaped as a limiting plate located inside the container, and the other end is shaped as a coupling column and protrudes outside the body; An elastic member is accommodated in the body cavity and sleeved on the outside of the connecting rod. One end of the elastic member abuts against the limit plate of the connecting rod, and the other end abuts against the bottom of the accommodating groove; A link has two sections, one section is provided with a through hole for the connecting column of the connecting rod to be inserted and fixed, and the other section is provided with a penetration hole for the shoulder belt of the safety belt to be inserted. 2. The safety belt buffer of a bicycle baby chair according to claim 1, wherein the inside of the body is shaped as a tunnel structure and runs through both ends, the inner walls of the openings at both ends of the body are each provided with an internal thread, and a locking member is Located at one end of the body channel, the locking member is provided with an external thread and engages with one of the internal threads of the body, and a limiter is provided with an external thread and engages with the other internal thread of the body, and the limiter The through hole is formed on the position piece to protrude through the connecting rod and the post. 3. The safety belt buffer of a child bicycle chair as claimed in claim 1, wherein the inside of the body is shaped as a tunnel structure and runs through both ends, an internal thread is provided on the inner wall of the opening at one end of the body, and a limiting member is an external There is an external thread engaged with the internal thread of the main body to form a groove of the main body, and the stopper is formed with the through hole protruding through the coupling column of the connecting rod, so that a locking piece is locked with the coupling column , and the linking piece is pressed between the locking piece and the limiting piece. 4 . The safety belt buffer of a child bicycle chair as claimed in claim 3 , wherein a gasket is provided between the linking member, the limiting member and the locking member. 5 . 5. The safety belt buffer of a child bicycle seat as claimed in claim 3, wherein the connecting column of the connecting rod is a column structure with threads on the surface, and the locking part is formed with a screw hole, so that The connecting rod coupling column passes through and engages with the screw hole of the lock piece. 6 . The seat belt buffer of a baby bicycle seat as claimed in claim 1 , wherein an internal thread is provided on the inner wall of the opening of the body cavity, and an external thread is provided on the outside of the locking member to engage with the internal thread of the body. 6 . 7. The safety belt buffer of a baby bicycle chair as claimed in claim 1, wherein two sets of holes are respectively provided on the back of the seat relative to the two shoulder straps, and one outside the body of each buffer is There are two locking holes on the side, so that the four locking pieces respectively pass through the holes of the seat assembly and then lock with the locking holes of the buffer body. 8 . The seat belt buffer of a child bicycle chair as claimed in claim 7 , wherein a convex rib is formed on one side of the body, and the two locking holes are formed on the convex rib. 8 . 9. The safety belt buffer of a child seat for bicycles as claimed in claim 1, characterized in that: each link of the buffer and the shoulder belt of the safety belt are assembled with a clamping member, and the clamping The part is formed with two perforations, and a rib is formed between the two perforations, and the shoulder belt is passed through the two perforations of the clamping part and is wound around the rib, so that each of the shoulder straps passes through the link part. Through the hole and the two sets of holes on both sides of the back of the seat, the locking part is used for the traction of the shoulder strap and rests on the linking part, so as to combine the shoulder strap and the buffer. 10. The safety belt buffer of a child bicycle chair according to claim 1, wherein the safety belt is composed of a fixing belt, two waist belts and the two shoulder belts, and one end of the fixing belt is fixed on the seat Seat, the other end is provided with a fastening piece, one end of the two belts is fixed on both sides of the back of the seat, and the other end is used for buckling combination with the fastening piece of the fixing belt, one end of the two shoulder belts is connected to the buffer It is fixedly connected, and the other end is used for buckling combination with the fastening part of the fixing belt.