TWI430911B - Bicycle seat belt bumper - Google Patents

Description

Bicycle seat belt bumper

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

Generally, the bicycle child chair is installed in the back seat of the bicycle for carrying the young children. Based on the safety considerations of the young child, it can sit securely on the seat. Usually, the bicycle child chair will be provided with a safety belt, and the seat belt is pressed. In children, it is effectively fixed to the seat to greatly increase the safety of young children during bicycle driving.

As shown in Fig. 1, the seat belt 12 of a conventional bicycle stroller 10 is shown. The seat belt 12 of the bicycle stroller 10 generally has two shoulder straps 121 fixed to the upper back of the seat 11, and is fixed to Two belts 122 at the waist of the seat 11 are passed through a seat fixed to the seat 11 for centrally fixing the shoulder belt 121 and a fixing belt 123 of the belt 122; wherein the shoulder belt 121 is disposed on the seat 11 Two upper perforations 111 and two lower perforations 112 on the two sides of the back, the two ends of the shoulder strap 121 are respectively inserted through the upper and lower perforations 111, 112, and then extended to the front of the seat 11 to form a fixing with the fixing strap 123. Point A, whereby the middle portion of the shoulder strap 121 is wound around the back of the seat 11 to form a fixed point B, thereby fixing the shoulder strap 121 to the seat 11.

It is worth noting that when the bicycle is braked, the natural reaction of the human body will move forward. The front impulse is determined by the strength of the braking force. In particular, the front passengers of the rear seat passengers will be larger than the front passengers. It is known that the distance between the two fixed points A, B of the seat belt 12 of the bicycle child chair 10 is fixed, and the seat belt 12 is known to prevent the young child from breaking free or relaxing after falling asleep on the bicycle chair 10. It does not have any elastic margin; therefore, when the bicycle is braked, the young child bound by the seat belt 12 to the seat 11 is more likely to be subjected to the seat belt 12 which has been slightly pressed against the body due to the forward movement. The suppression of discomfort on both sides of the chest, especially the force during emergency braking, is more likely to cause the momentary tightening of the seat belt of the conventional bicycle chair directly to cause serious compression damage to the incomplete child, so the bicycle chair is known. There is room for improvement.

In view of the above-mentioned usage problems, the inventor of the present invention considered that it is necessary to design a combination structure of a bicycle child chair and a safety belt having no elastic margin itself, so as to prevent the seat belt from directly suppressing the baby body when braking.

The object of the present invention is to provide a seat belt bumper for a bicycle child chair, which mainly fixes one end of the seat belt of the bicycle child chair to the front of the seat by a male and female buckle structure, and the other end is fixed to the back of the seat. The buffer is assembled, whereby when the bicycle brake causes the young child to rush forward, the safety belt can provide a spring margin by the buffer to reduce the force of the seat belt directly suppressing the child. Avoid unnecessary strain or pressure injuries.

Therefore, in order to achieve the above object, the present invention provides a seat belt bumper for a bicycle child chair, which is mainly provided with a seat belt, and the seat belt has two shoulder straps, and the two shoulder straps are fixed at one end of the seat belt. One seat of the seat, the other end of the seat is respectively disposed on the seat back and fixed by the second buffer on the back of the seat, wherein each of the buffers comprises a body fixed on the back of the seat and hollow inside, the body interior A connecting rod is disposed on one of the limiting members of the body, and the connecting rod and the limiting member have a set of elastic members disposed outside the connecting rod, and an L-shaped linking member has two segments and a segment Inserting the connecting post of the connecting rod, and providing a through hole for the shoulder strap of the seat belt, and the end of the connecting rod is locked with a locking member, so that the connecting member is pressed Between the locking member and the limiting member; thereby, the damper is displaced along the body by the connecting rod to change the length of the shoulder strap of the safety belt, and the elastic member provides an elastic margin to make the bicycle When driving normally, the connecting rod is the top of the elastic member that is inwardly contracted into the buffer body to limit the safety. The shoulder strap has a length distance from the seat seat to the back of the back. When the bicycle brakes and the young child pushes the shoulder strap forward, the shoulder strap can pull the link through the linkage of the buffer. This elasticity, thus changing the length of the shoulder strap, reaches the cushioning shoulder strap and directly suppresses the chest of the child and avoids unnecessary damage to the young child.

The preferred embodiments of the present invention are described in detail with reference to the accompanying drawings.

First, with reference to FIG. 2, the present invention provides a preferred embodiment of a seat belt bumper for a bicycle child chair, which is mainly provided with a seat belt 20 having a seat belt 20 having a back. 21 and a portion 22, the safety belt 30 has two shoulder straps 33. The two shoulder straps 33 are fixed at one end of the seat 20 of the seat 20, and the other ends respectively pass through the two through holes 211 of the back 21 of the seat 20. The buffer 40 includes a body 41, a connecting rod 43, an elastic member 44, a limiting member 45, a linking member 46 and a locking member. 47, wherein the body 41 is fixed to the back 21 of the seat 20, and the inner portion thereof is hollowly formed into a tunnel structure extending through the two ends of the body 41. The inner walls of the open ends of the body 41 are respectively provided with an internal thread 412, 413. A locking member 42 is disposed at one end of the hole of the body 41. An external thread 421 is disposed on the outside of the blocking member 42 to engage with one of the internal threads 412 of the body 41. In this embodiment, the outer side of the body 41 is formed. There is a rib 414, the rib 414 is fastened with two locking holes 415, and the back 21 of the seat 20 is opposite to the shoulder strap 3 There are two sets of holes 212 on each side of the three sides, so that the four locking pieces 50 are respectively inserted into the set holes 212 of the seat 20 and then locked with the locking holes 415 of the body 40 of the buffer 40; The accommodating portion 411 is formed in a receiving groove 411 of the main body 41 and has two ends. One end is formed as a limiting plate 431 at the bottom of the receiving groove 411, and the other end is formed as a binding post 432 and protrudes from the opening 411; The elastic member 44 is disposed in the cavity 411 of the body 41 and sleeved on the outside of the connecting rod 43. One end of the elastic member 44 abuts against the limiting plate 431 of the connecting rod 43 to provide an elastic margin; The limiting member 45 is disposed in the opening 411 of the body 41 and abuts against the elastic member 44. The limiting member 45 has a through hole 451 for the connecting rod 43 to protrude and protrudes from the binding post. In the embodiment, the external limiting member 45 is externally engaged with the other internal thread 413 of the body 41. The linking member 46 has an L-shaped structure and has two segments. The hole 461 is formed in the same manner as the connecting post 432 of the connecting rod 43 , and a through hole 462 is defined in the other part for the shoulder strap 33 of the seat belt 30 to be inserted and coupled, and the linking member 46 and the limiting member 45 and Each of the locking members 47 is provided with a gasket 463, 464; the locking member 47 is formed with a screw hole 471, and the coupling post 432 of the connecting rod 43 is formed into a column structure with a thread on the surface, so that The connecting rod 43 is engaged with and engaged with the screw hole 417 of the locking member 47, and the linking member 46 is pressed between the locking member 47 and the limiting member 45; thereby, the buffer 40 is transmitted through The link 43 is displaced along the body 41, and the length of the shoulder strap 33 of the seat belt 30 is changed from the seat 22 of the seat 20 to the through hole 211 of the back 21 thereof by the elastic margin of the elastic member 44. Degree distance.

In addition, as shown in FIG. 9, the limiting member 41 of the buffer 40 of the present invention is directly integrally formed on the body 41. The interior of the body 41 is hollowly formed into a cavity 416 having an opening downward. A through hole 417 is defined in the bottom of the receiving slot 416, and the connecting rod 43 is received in the receiving slot 416. The connecting post 432 of the connecting rod 43 protrudes from the through hole 471 to the outside of the body 41 and the connecting member 46. The limiting plate 431 is disposed inside the receiving slot 416, and one end of the elastic member 44 abuts against the limiting plate 431, and the other end abuts against the circumferential side of the through hole 417.

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

Referring to FIG. 2 , the safety belt 30 of the bicycle child chair of the present invention has 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 20 . The end portion 22 is provided with a fastening member 311. One end of the two waist straps 32 is fixed on the two sides of the back 21 of the seat 20, and the other end is snap-fitted with the fastening member 311 of the fixing strap 31. One end of the 33 is fixed to the buffer 40, and the other end is snap-fitted to the fastening member 311 of the fixing belt 31.

For the operation mode of the seat belt buffer of the bicycle chair of the present invention, please refer to the figures 5 to 8, wherein it is worth noting that, as shown in Figures 5 and 7, the back 21 of the seat 20 is defined. The position of the two through holes 211 to the limit plate 431 of the link 40 of the buffer 40 has a height distance H to provide a distance space for the buffer 40 to be pulled by the seat belt 30, and the seat 20 is pierced 211 to the The buffer 40 linkage member 46 has a buffering distance h, which is changed according to the position of the linking member 46; as shown in Figures 5 and 6, the bicycle body and shoulders are illustrated when the bicycle is in normal driving. The relationship between the belt 33 and the buffer 40 is as shown in Fig. 5. When the bicycle is in normal normal driving, the young child system is attached to the back 21 of the seat 20, and the shoulder strap 33 is lightly pressed on the body of the child, such as As shown in FIG. 6, at this time, the connecting rod 43 of the damper 40 is biased into the body 40 of the damper 40 by the elastic member 44, so that the shoulder strap 33 is seated on the seat 20 The portion 22 has a length distance between the through holes 211 of the back portion 21; when the bicycle brakes and the child's body rushes forward, as shown in Figs. As shown, the body of the child will be pressed against the shoulder strap 33, and the shoulder strap 33 pulls the linkage 46 of the bumper 40, and then the link 43 is compressed to compress the elastic member 44 from the restricting member 45. The hole 451 extends out of the body 41, the displacement member 46 is displaced to compress the cushioning distance h, and the compression distance is increased to the shoulder belt 33 from the seat 22 seat portion 22 to the back surface 21 of the back portion 21 thereof. The length distance is such that the shoulder strap 33 is prevented from directly and without cushioning the unnecessary damage that may be caused in the chest of the child.

In addition, as shown in FIG. 8, the bumper 40 of the present invention and the shoulder strap 33 of the safety belt 30 are assembled through a card member 60. As shown in the figure, the card member 60 is formed with two through holes 61. A rib 62 is formed between the through holes 61. The shoulder straps 33 are disposed through the two through holes 61 of the engaging member 60 and are disposed around the ribs 62 so that the shoulder straps 33 are placed through the linking member 46. The hole 462 and the two sides of the back surface 21 of the seat 20 are provided with two holes 212, and the clamping member 60 is pulled by the shoulder belt 33 against the circumferential side of the insertion hole 462 of the linking member 46, thereby combining the shoulder strap. 33 and the bumper 40, and increase the strength of the combined structure of the shoulder strap 33 and the linkage member 46.

"Knowledge"

10. . . Bicycle chair

11. . . Seat

111. . . Perforation

112. . . Lower perforation

12. . . seat belt

121. . . Shoulder strap

122. . . belt

123. . . Fixing strap

A. . . fixed point

B. . . fixed point

"this invention"

20. . . Seat

twenty one. . . Back

211. . . perforation

212. . . Set holes

twenty two. . . Seat

30. . . seat belt

31. . . Fixing strap

311. . . Fastener

32. . . belt

33. . . Shoulder strap

40. . . buffer

41. . . Ontology

411. . . Crate

412. . . internal thread

413. . . internal thread

414. . . Rib

415. . . Locking hole

416. . . Crate

417. . . Through hole

42. . . Locking piece

421. . . External thread

43. . . link

431. . . Limit disk

432. . . Combined column

44. . . Elastic part

45. . . Limiter

451. . . Through hole

452. . . External thread

46. . . Linkage

461. . . Through hole

462. . . Through hole

463. . . Gasket

464. . . Gasket

47. . . Locking piece

471. . . Screw hole

50. . . Locking piece

60. . . Card parts

61. . . perforation

62. . . Rib

H. . . Height distance

h. . . Buffer distance

Figure 1 Schematic diagram of the structure of the seat belt of the bicycle chair.

Fig. 2 is a schematic view showing the decomposition of the bicycle chair and the damper of the present invention.

Fig. 3 is a schematic view showing the structure of the bicycle seat belt of the present invention combined with a damper.

Fig. 4 is a schematic exploded perspective view of the buffer of the present invention.

Fig. 5 is a schematic view showing the use state of the seat belt and the human body in the normal traveling state of the bicycle.

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

Fig. 7 is a schematic view showing the use state of the safety belt and the human body in the state of emergency braking of the bicycle.

Figure 8 is a cross-sectional view showing the structure of the buffer of the present invention in the state of Figure 7.

Figure 9 is a cross-sectional view showing another structural aspect of the damper body of the present invention.

20. . . Seat

twenty one. . . Back

30. . . seat belt

33. . . Shoulder strap

40. . . buffer

Claims (7)

The utility model relates to a safety belt damper for a bicycle child chair, which mainly comprises a safety belt provided with a seat belt, the safety belt has two shoulder straps, one end of the two shoulder straps is fixed on one seat of the seat, and the other ends are respectively arranged The pedestal is fixed to the back of the seat by a double damper, wherein each of the dampers comprises: a body fixed to the back of the seat, and the interior thereof is hollowly formed into a cavity, and the bottom of the cavity is opened a through hole; a connecting rod is disposed in the receiving groove of the body and has two ends, one end is formed as a limiting plate located inside the receiving groove, and the other end is formed as a binding column and protrudes to the outside of the body; The elastic member is disposed in the body receiving groove and sleeved on the outside of the connecting rod, and one end of the elastic member abuts against the limiting plate of the connecting rod, and the other end abuts against the bottom of the receiving groove; The system has two sections, one section has a constant hole and is fixed for the connecting post of the connecting rod, and the other section has a through hole for the shoulder strap of the seat belt to be worn. The seat belt damper of the bicycle pedestal of claim 1, wherein the body is internally formed into a tunnel structure and penetrates the two ends, and the inner wall of the open ends of the body is respectively provided with an internal thread, and a latching member The outer side of the body is provided with an external thread and is engaged with one of the internal threads of the body, and a limiting member is externally provided with an external thread to engage with the other internal thread of the body, and The limiting member is formed with the through hole as the connecting rod The column is placed to protrude. The seat belt damper of the bicycle pedestal of claim 1, wherein the body is internally formed into a tunnel structure and penetrates the two ends, and the inner wall of the one end opening of the body is provided with an internal thread, and the limiting member is The external portion is provided with an external thread to engage with the internal thread of the body to form a cavity of the body, and the limiting member is formed with the through hole for the connecting rod of the connecting rod to protrude, so that a locking member and the binding column lock And the linkage is pressed between the locking member and the limiting member. The seat belt damper of the bicycle pedestal of claim 3, wherein a shims are provided between the linking member and the limiting member and the locking member. The seat belt damper of the bicycle pedestal of claim 3, wherein the connecting post of the connecting rod is formed into a column structure with a thread on the surface, and the locking member is formed with a screw hole. The connecting rod coupling post penetrates the screw hole of the locking member and engages with the screw hole. The seat belt damper of the bicycle pedestal of claim 1, wherein the inner wall of the body opening is provided with an internal thread, and a locking member is externally provided with an external thread to engage the internal thread. The seat belt damper of the bicycle chair of the first aspect of the invention, wherein the back of the seat is provided with two sets of holes on opposite sides of the shoulder strap, and the outer side of the body of each of the dampers Two locking holes are provided, so that the four locking members are respectively inserted into the locking hole of the buffer body after being inserted into the seat assembly hole Knot.