JP2011046375A - Baby carriage having impact-absorbing function - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a baby carriage overcoming a defect that vibration cannot be efficiently absorbed when a direction of the vibration applied onto a wheel is different from an axial direction of a shaft of the wheel since a conventional method for absorbing impact only absorbs the axial vibration of an impact-absorbing spring arranged on the shaft of the wheel. <P>SOLUTION: The baby carriage having the impact-absorbing function includes a ring seat 20 and a wheel-like constitution element 24 arranged on one side of the ring seat 20. The baby carriage further includes an impact-absorbing base 22 and an impact-absorbing constitution element 26. The impact-absorbing base 22 is mounted to an upper part of the wheel-like constitution element 24 and is pivoted relative to the ring seat 20. Two ends of the impact-absorbing constitution element 26 are connected to the ring seat 20 and the impact-absorbing base 22 so as to absorb the vibration of the wheel-like constitution element 24 respectively. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to a baby carriage, and more particularly to a baby carriage having an impact absorbing function.

  Conventional baby carriages usually have an impact absorbing function. Various types of shock absorbing mechanisms are attached to the stroller to absorb vibrations generated by the wheels. To provide comfort for the baby sitting in the baby carriage, the shock absorbing mechanism is disposed on the baby carriage to prevent the baby from feeling uncomfortable and dangerous when the baby carriage crosses the obstacle. In general, the spring is often mounted on the wheel shaft in a conventional shock absorbing mechanism of a baby carriage to absorb vibrations from the wheel. For example, U.S. Pat. No. 5,103,530 (Patent Document 1) discloses an impact absorbing mechanism with two wheels (two wheels), which is on a shaft disposed between the two wheels. Having a shock absorbing spring attached to the. In addition, in US Patent Application No. 2006/0279070 (Patent Document 2) and US Patent Application No. 2006/0237930 (Patent Document 3), an impact absorbing mechanism with one wheel (one wheel) is disclosed. The mechanism has shock absorbing springs mounted on two shafts arranged on the two sides of the wheel. However, the above-described method for shock absorption only absorbs the axial vibration of the shock absorbing spring arranged on the wheel shaft. When the direction of vibration on the wheel is different from the axial direction of the wheel shaft, the vibration cannot be absorbed efficiently. Therefore, the shock absorbing function of the conventional baby carriage is insufficient, and the shock absorbing spring exposed to the outside is not excellent in appearance and is easily soiled.

US Pat. No. 5,103,530 US Patent Application No. 2006/0279070 US Patent Application No. 2006/0237930

  The present invention provides a baby carriage that overcomes the above-mentioned drawbacks.

  According to the present invention, the baby carriage is a wheel seat, a wheel-like component disposed on the side of the wheel seat, mounted above the wheel-like component and pivoted with respect to the wheel seat. A shock absorbing base and a shock absorbing component, the two ends of the shock absorbing component being connected to the wheel seat and the shock absorbing base, respectively, to absorb the vibration of the wheel-like component.

  According to the present invention, the baby carriage includes a shock absorbing component that is positioned parallel to the arm of the shock absorbing base.

  According to the present invention, the stroller not only can efficiently absorb the vibration of the wheel-shaped component, but also absorbs the shock inside the wheel so as to protect the shock-absorbing component and give an excellent appearance. Components can be placed.

  These and other objects of the present invention will be apparent to those skilled in the art upon reading the detailed description of the preferred embodiment shown in the drawings below.

1 illustrates a baby carriage according to one preferred embodiment of the present invention. 1 illustrates a single wheel mechanism according to a preferred embodiment of the present invention. 1 is an exploded view of a single wheel mechanism according to a preferred embodiment of the present invention. FIG. 1 is a cross-sectional view of a single wheel mechanism before absorbing an impact according to a preferred embodiment of the present invention. 1 is a cross-sectional view of a single wheel mechanism after absorbing an impact according to a preferred embodiment of the present invention.

  Reference is made to FIG. FIG. 1 is a diagram of a stroller 100 according to a preferred embodiment of the present invention. The baby carriage 100 includes a seat portion 12 on which an infant is placed, a support frame 14 on which the seat portion 12 is placed, a handle 16 for controlling the moving direction of the baby carriage 100, and a mechanism of at least one wheel connected to the support frame 14 ( A single wheel mechanism 200. Please refer to FIG. 2 and FIG. FIG. 2 is a diagram of a single wheel mechanism 200 in accordance with a preferred embodiment of the present invention. FIG. 3 is an exploded view of a single wheel mechanism according to a preferred embodiment of the present invention. The one-wheel mechanism 200 includes at least one wheel seat 20, at least one wheel-like component 24 disposed below the corresponding wheel seat 20, and mounted above and corresponding to the corresponding wheel seat 20. At least one shock absorbing base 22 pivoted with respect to and at least one shock absorbing component 26. The shock absorbing component 26 is connected to the corresponding wheel seat 20 and the corresponding shock absorbing base 22, respectively, and absorbs vibration from the corresponding wheel-shaped component 24. The one-wheel mechanism 200 further includes at least one steering shaft 28 disposed inside the corresponding wheel seat 20. If it is necessary to change the direction of movement of the one-wheel mechanism 200 of the baby carriage 100, the shock absorbing base 22 and the wheel seat 20 can be rotated with respect to the support frame 14 by the steering shaft 28, and the wheel-like component 24 to turn. Drive. The arrangement and number of the wheel seat 20, the shock absorbing base 22, the wheel-shaped component 24, the shock absorbing component 26, and the steering shaft 28 of the single-wheel mechanism 200 are not limited to the embodiment, but depend on the design requirements.

  As shown in FIG. 3, the shock absorbing base 22 has an arm 221 connected to the hub 241 of the wheel-like component 24, and a pivot connected to the arm 221 and pivoted with respect to the wheel seat 20. Because of having the part 223, the shock absorbing base 22 can rotate with respect to the wheel seat 20. Since the length of the arm 221 is substantially longer than the radius of the wheel-shaped component 24, the wheel-shaped component 24 can be mounted on the shock-absorbing base 22 and freely attached to the shock-absorbing base 22 via the hub 241. Can be rotated. The shock absorbing base 22 further includes a first protrusion 225 that is disposed in proximity to the wheel seat 20. When using the baby carriage 100, the wheels of the baby carriage are each placed on a support surface. The distance between the first protrusion 25 and the support surface with the wheel-like component 24 on top is maintained greater than the distance between the pivot 223 and the support surface with the wheel-like component 24 on top. The distance between the pivot portion 223 and the support surface on which the wheel-like component 24 is located is maintained as being greater than the distance between the hub 241 and the support surface on which the wheel-like component 24 is located. The wheel seat 20 has a second projecting portion 201 and a cover portion 203. The two ends of the shock absorbing component 26 are respectively engaged with the second protrusion 201 of the wheel seat 20 and the first protrusion 225 of the shock absorbing base 22 and caused by movement on the support surface. The vibration of the kinetic energy and the potential energy of the wheel-like component 24 is converted into the elastic energy of the shock absorbing component 26 for absorbing the vibration from the shock-absorbing base 22 and the wheel-like component 24 rotating with respect to the wheel seat 20. Convert. The angle is formed between the axial direction of the shock absorbing component 26 and the axial direction of the steering shaft 28, and the range of angles can be 0 ° to 90 °. In the preferred embodiment, the angle between the axial direction of the shock absorbing component 26 and the axial direction of the steering shaft 28 is the same as the angle between the arm 221 of the shock absorbing base 22 and the axial direction of the steering shaft 28. Or approximate. That is, the axial direction of the shock absorbing component 26 is parallel to the extending direction of the arm 221. A space is formed between the cover portion 203 and the shock absorbing base 22 of the wheel seat 20 and includes a first protrusion 225, a second protrusion 201, and a shock absorbing component 26 therein. Thus, the single wheel mechanism 200 has a desirable appearance and can protect the shock absorbing component 26 from contamination. The shock absorbing component 26 can be a spring. The wheel seat 20 can be made of a plastic material or a metal material. The shock absorbing base 22 can be made of a plastic material or a metal material.

  Please refer to FIG. 4 and FIG. FIG. 4 is a cross-sectional view of the one-wheel mechanism 200 before absorbing an impact according to a preferred embodiment of the present invention. FIG. 5 is a cross-sectional view of the one-wheel mechanism 200 after absorbing an impact according to a preferred embodiment of the present invention. When the wheel-shaped component 24 of the single-wheel mechanism 200 moves and collides with the obstacle 300, the reaction force (opposing force) F from the obstacle 200 rotates with respect to the wheel seat 20 and causes the shock absorbing component 26 to move. The shock absorbing base 22 is driven to compress. Subsequently, the kinetic energy of the wheel-like component 24 generated by the vibration can be efficiently converted into the kinetic energy of the shock absorbing component 26 to absorb the vibration. As shown in FIG. 4, when the one-wheel mechanism 200 does not collide with the obstacle 300, the shock absorbing component 26 is compressed only by the weight of the baby carriage 100. As shown in FIG. 5, when the wheel-like component 24 collides with the obstacle 300 or intends to cross the obstacle 300, the wheel-like component 24 is lifted by the reaction force F from the obstacle 300. It is done. At the same time, the shock absorbing base 22 pivots with respect to the pivot 223 and rotates in the direction D1 in which the arm 221 of the shock absorbing base 22 is connected between the hub 241 and the wheel seat 20 of the wheel-like component 24. . Therefore, the vibration of the kinetic energy and the potential energy of the wheel-shaped component 24 generated by the external force F is converted into elastic energy. Therefore, the single wheel mechanism 200 can efficiently absorb the vibration of the baby carriage 100 generated by the external force F.

  The two end portions of the shock absorbing component 26 are respectively engaged with the first protruding portion 225 of the shock absorbing base portion 22 and the second protruding portion 201 of the wheel seat 20, and a wheel-shaped configuration generated by an external force. The vibration of the kinetic energy and potential energy of the element 24 is efficiently absorbed as a buffer. On the other hand, the space formed between the cover 203 of the wheel seat 20 and the shock absorption base 22 is configured to cover the first protrusion 225, the second protrusion 201, and the shock absorption component 26, The shock absorbing component 26 is prevented from being soiled and the excellent appearance of the one-wheel mechanism 200 is achieved. Furthermore, the shock absorbing component 26 covered inside the wheel seat 20 can be prevented from being affected by changes in humidity, temperature, and the like. The shock absorbing base 22 disposed above the wheel-shaped component 24 can prevent the user from being contaminated with sludge when the wheel-shaped component 24 rotates.

  Compared to the prior art, the baby carriage of the present invention has a single wheel mechanism instead of placing shock absorbing components on the shaft between the two wheels of the two wheel mechanism or on the shafts on the two sides of the wheel of the single wheel mechanism. An impact absorbing component is engaged between the wheel seat and the impact absorbing base. The baby carriage according to the present invention can not only completely absorb the vibration of the kinetic energy and the potential energy of the wheel-shaped component 24 generated by the external force, but also arrange the shock absorbing component inside the wheel seat. This achieves an excellent appearance of the baby carriage and prevents the shock absorbing component from becoming dirty.

  Those skilled in the art will readily appreciate that numerous modifications and changes of the apparatus and method may be made while retaining the teachings of the present invention.

DESCRIPTION OF SYMBOLS 12 Seat part 14 Support frame 16 Handle 20 Wheel seat 22 Shock absorption base 24 Wheel-shaped component 26 Shock absorption component 28 Steering shaft 100 Stroller 200 One-wheel mechanism 201 2nd protrusion part 203 Cover part 221 Arm 223 Pivot part 225 1st Protruding part 241 Hub 300 Obstacle D1 Direction in which arm 221 is connected F Reaction force (external force)

Claims (14)

A baby carriage,
Circle seat,
A wheel-like component disposed on the side of the wheel seat;
An impact absorbing base mounted above the wheel-like component and pivoted relative to the wheel seat;
A shock absorbing component;
Have
The two ends of the shock absorbing component are each connected to the wheel seat and the shock absorbing base to absorb vibrations of the wheel-like component.
baby carriage. The shock absorbing component absorbs vibrations of the wheel-like component when the shock absorbing base rotates relative to the wheel seat;
The baby carriage according to claim 1. The shock absorbing base has a first protrusion;
The first protrusion is proximate to the wheel seat and sandwiched by one end of the shock absorbing component;
The baby carriage according to claim 1. The wheel seat is
A second protrusion sandwiched between the other ends of the shock absorbing component;
A cover part;
Have
A space formed between the cover and the shock absorbing base accommodates the first protrusion, the second protrusion, and the shock absorbing component;
The baby carriage according to claim 3. The shock absorbing base further includes an arm connected to the hub of the wheel-like component, and a pivot portion connected to the arm and pivoted relative to the wheel seat.
The baby carriage according to claim 3. The shock absorbing component is positioned substantially parallel to the arm of the shock absorbing base;
The baby carriage according to claim 5. The length of the arm is substantially longer than the radius of the wheel-like component;
The baby carriage according to claim 5. The wheel-like component is held on a support surface, and a distance between the first protrusion and the support surface is greater than a distance between the pivot portion and the support surface;
The baby carriage according to claim 5. The wheel-shaped component is held on a support surface, and a distance between the pivot portion and the support surface is greater than a distance between the hub and the support surface;
The baby carriage according to claim 5. The wheel seat is
A second protrusion sandwiched between one end of the shock absorbing component;
A cover part;
Have
A space formed between the cover and the shock absorbing base accommodates the second protrusion and the shock absorbing component;
The baby carriage according to claim 1. A steering shaft;
The steering shaft is disposed inside the wheel seat to rotate the shock absorbing base, and drives the wheel-like component to turn,
The angle formed between the axial direction of the shock absorbing component and the axial direction of the steering shaft is less than 90 degrees;
The baby carriage according to claim 1. The wheel seat is made of plastic material or metal material,
The baby carriage according to claim 1. The shock absorbing base is made of plastic material or metal material,
The baby carriage according to claim 1. The shock absorbing component is a spring;
The baby carriage according to claim 1.

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