TW201434698A - Wheel directional mechanism and child vehicle thereof - Google Patents

Abstract

A wheel directional mechanism is mounted on a vehicle frame of a child vehicle for directing front and rear wheels of the child vehicle and includes first and second pulling members, first and second directional members, a first driving member, and first and second elastic members connected to the first and second directional members respectively. The first and second directional members are connected to two ends of the first pulling member respectively and are slidably mounted on two ends of the vehicle frame for locking and releasing the front wheel and the rear wheel respectively. The first driving member is mounted on the vehicle frame for driving the first directional member to lock or release the front wheel and simultaneously driving the second directional member to lock or release the rear wheel. The second pulling member is connected to the second directional member and the first driving member.

Description

Wheel alignment mechanism and its child carrier

The present invention relates to a wheel orientation mechanism and a child carrier thereof, and more particularly to a wheel orientation mechanism that locks one of the front and rear wheel members and unlocks the other group and its child carrier.

The steering of the stroller is carried by the front wheel to drive the rear wheel. In order to facilitate the steering of the stroller, the front wheel of the stroller is usually set as a universal wheel structure, and the front wheel and the rear wheel are rotatably connected with the stroller of the stroller, and the front wheel can be switched freely. The direction, while the rear wheel direction is a fixed direction and cannot be arbitrarily rotated. This method is to increase the stability of the stroller steering.

The strollers currently available on the market can usually be used in the forward or backward direction. Therefore, in order to be suitable for the forward or backward use state, the front and rear wheels of the strollers are all configured as a universal wheel structure; however, Setting the front and rear wheels to the universal wheel structure makes the stroller not smooth and difficult to handle when steering. For this reason, the prior art usually installs the wheel orientation device on the front or rear wheels to be manually or automatically used during use. Controlling the operation of the wheel orientation device, thereby locking the front wheel and unlocking the rear wheel or locking the rear wheel and unlocking the front wheel, thereby achieving a general stroller use effect, such as US Pat. No. 4,779,879, which has a relatively complicated structure and many processes. The production cost is high, and when the baby carriage is used from one direction to the other direction, it is necessary to manually fix the wheel in one direction and unlock the wheel in the other direction, which is cumbersome to operate and extremely inconvenient to use. Therefore, there has been developed a device on the market that can be reversible with the handrail of the vehicle to drive the front and rear wheels, which allows the user to release the previously locked wheel (such as the rear wheel) while switching the direction of the stroller. For the universal wheel, the original universal wheel (such as the front wheel) is locked to orient it, such as Chinese patent CN100445147, CN101687518, CN101678852, CN202624303, however, all of the above devices must be externally displayed on the frame, resulting in a complicated appearance of the frame and being vulnerable to external force collision and losing its effect. Therefore, there is an urgent need for a wheel orientation device that is simple in structure, simple in control, and convenient to operate.

One of the objects of the present invention is to provide a wheel orientation mechanism that can lock any one of the front and rear wheel elements and unlock the other group and its child carrier to solve the above problems.

Based on the above object, the patent application scope of the present invention discloses a wheel orientation mechanism mounted on a vehicle bracket of a child carrier for orienting a front wheel component and a rear wheel component respectively located on the front and rear sides of the child carrier. The wheel orientation mechanism includes a first traction member, first and second orientation members, a first drive member, a second traction member, and first and second elastic members. The first and second orientation members are respectively coupled to the two ends of the first traction member and slidably mounted on the two ends of the vehicle bracket for locking and unlocking the front wheel member and the rear wheel member, respectively. The first driving member is mounted on the vehicle bracket for driving the first orientation member to lock or unlock the front wheel member and simultaneously driving the second orientation member to lock or unlock the rear wheel member. The second traction member is coupled to the second orientation member and the first drive member. The first and second elastic members are respectively coupled to the first and second orientation members.

The patent application scope of the present invention further discloses that the elastic force of the second elastic member is greater than the elastic force of the first elastic member.

The patent application scope of the present invention further discloses that the first driving member drives the wheel orientation mechanism to switch between a first state and a second state, and when the wheel orientation mechanism is in the first state, the second elastic member applies The force of the first traction member is greater than the force applied by the first elastic member to the first traction member, and when the wheel orientation mechanism is in the second state, the second elastic member is applied to the first traction member The force is less than the action of the first elastic member applied to the first traction member force.

The patent application scope of the present invention further discloses that when the wheel orientation mechanism is in the first state, the second elastic member drives the second orientation member to move outward relative to the vehicle bracket when the wheel orientation mechanism is in the second state. The first elastic member drives the first orientation member to move outward relative to the vehicle bracket.

The patent application scope of the present invention further discloses that when the wheel orientation mechanism is in the second state, the second elastic member is compressed by the second traction member to apply the second elastic member to the first traction. The force of the member is less than the force applied by the first elastic member to the first traction member.

The patent application scope of the present invention further discloses that when the wheel orientation mechanism is in the first state, the rear wheel component corresponding to the second orientation member is in a locked state, and the front wheel component corresponding to the first orientation component is Release the lock state.

The patent application scope of the present invention further discloses that when the wheel orientation mechanism is in the second state, the front wheel component corresponding to the first orientation member is in a locked state, and the rear wheel component corresponding to the second orientation component is Release the lock state.

According to the patent application of the present invention, the first driving component is a driving turntable, and the driving carousel is pivotally connected to the vehicle bracket for winding or releasing the second traction member during rotation.

According to the patent application of the present invention, the driving turntable is formed with a curved guiding hole, and the bracket has a guiding post, and the guiding post is inserted into the guiding hole.

According to the claimed invention, the wheel orientation mechanism further includes a vehicle armrest, and a lower end of the armrest of the vehicle is connected to the driving carousel and coaxially connected to the driving bracket.

The invention further discloses that the lower end of the armrest of the vehicle has a second driving member, the second driving member is pivotally connected to the driving bracket coaxially on the vehicle bracket, and the second driving member and the driving dial Fixed to each other.

According to the patent application of the present invention, the second driving member extends toward the driving turntable to form a fixing post. The driving rotating plate is formed with a connecting hole, and the fixing post is inserted into the connecting hole.

The scope of the patent application of the present invention further discloses that the first and second traction members are composed of metal or plastic materials.

The scope of the invention further discloses that a child carrier comprises a vehicle bracket, a front wheel component and a rear wheel component, the front wheel component being mounted in front of the vehicle bracket, the rear wheel component being mounted behind the vehicle bracket, wherein The child carrier further includes the wheel orientation mechanism described above, the wheel orientation mechanism being mounted to the vehicle frame for selectively orienting the front wheel member or the rear wheel member.

In summary, the present invention utilizes the first and second orientation members slidably disposed at the ends of the vehicle bracket and the first and second orientation members respectively correspond to the child vehicle front rear wheel components, as compared to the prior art. a design, the first traction member is used to connect the first and second orientation members, and the elastic recovery force of the first and second elastic members is used to drive the first and second orientation members to return to the original state. Achieving the purpose of repeatedly inserting and disengaging the first and second orientation members on the front and rear wheel members when the drive wheel drives the second traction member, thereby producing the effect of selectively orienting the wheel components of the child carrier. Through the above simple interlocking structure design, the present invention allows the user to switch the wheel components that need to be oriented only by controlling the first driving member, and the control is very simple, so that the user can be greatly facilitated.

The advantages and spirit of the present invention can be obtained by the following embodiments and drawings. Go to further understanding.

1‧‧‧ drive carousel

2‧‧‧ traction parts

3‧‧‧First orientation piece

4‧‧‧Second orientation piece

5‧‧‧First elastic parts

6‧‧‧Car handrails

7‧‧‧Second elastic parts

11‧‧‧ Guide hole

12‧‧‧Fixed holes

13‧‧‧connection hole

21‧‧‧First traction parts

22‧‧‧Second traction parts

61‧‧‧second drive

100‧‧‧ wheel alignment mechanism

200‧‧‧Car bracket

201‧‧‧ front bracket

202‧‧‧ rear bracket

300‧‧‧ Wheel components

301‧‧‧Carrier

301a‧‧ directional holes

302‧‧‧ front wheel

303‧‧‧ Rear wheel

611‧‧‧ fixed column

Figure 1 is a schematic view showing the structure of the wheel orientation mechanism of the present invention mounted on a stroller.

Figure 2 is a schematic view showing the orientation of the wheel elements by mounting the wheel orientation mechanism of the present invention on the vehicle frame.

Figure 3 is a schematic view showing the structure of the wheel alignment mechanism of the present invention.

Fig. 4 is a schematic view showing the mounting state of the wheel alignment mechanism and the wheel component of the present invention.

Figure 5 is a schematic view showing the structure of the handrail and the driving turntable of the present invention.

Fig. 6 is a schematic view showing the state in which the stroller is used in the forward direction after the wheel orientation mechanism is installed.

The detailed description of the technical contents, structural features, and effects achieved by the present invention will be described in detail below with reference to the accompanying drawings. In addition, the present invention is applicable to the field of children's vehicles, such as baby carriages, baby chairs, etc. For convenience of explanation, the following description is based on a baby carriage.

As shown in Figures 1 and 2, the stroller includes a vehicle bracket 200, four wheel elements 300 (i.e., two front wheel members and two rear wheel members), and a wheel orientation mechanism 100 having a front wheel 302 having a rear wheel member having The rear wheel 303 has a front bracket 201 and a rear bracket 202. The front wheel 302 is mounted on the front bracket 201, the rear wheel 303 is mounted on the rear bracket 202, and the wheel orientation mechanism 100 is mounted on the vehicle bracket 200, and is selected. The front wheel 302 or the rear wheel 303 is oriented sexually. The front wheel component and the rear wheel component each have a carrier 301. The front wheel 302 is pivotally connected to the front bracket 201 via the carrier 301, and the rear wheel 303 is pivotally connected to the rear bracket 202 via the carrier 301. The wheel orientation mechanism 100 is mounted to both sides of the stroller and controls a front wheel 302 and a rear wheel 302 on the same side of the stroller. The wheel orientation mechanism 100 includes a first driving member, a traction member 2, a first orientation member 3, a second orientation member 4, a first elastic member 5, a vehicle armrest 6, and a second elastic member 7. First orientation piece 3 and the second orientation member 4 can be a pin. The traction member 2 includes a first traction member 21 and a second traction member 22. In this embodiment, the traction member 2 can be a steel wire, but is not limited thereto. That is to say, in other embodiments, the traction member 2 can be made of metal such as iron, copper, aluminum, alloy, or nylon or rubber. The composition of the plastic material, that is, the traction member 2 can be any conventional material in the technical field, and details are not described herein. In this embodiment, the first drive member can be the drive carousel 1.

As shown in FIG. 3 and FIG. 4, the first orientation member 3 and the second orientation member 4 are respectively coupled to both ends of the first traction member 21, and are slidably mounted to the front bracket 201 and the rear bracket 202, respectively. Lower end. The bearing member 301 is formed with an orientation hole 301a which is disposed on the projection of the extending direction of the first orientation member 3 and the second orientation member 4 when the baby carriage is straight, and the baby carriage is straight forward or backward. When going straight, the position of the carrier 301 is different with respect to the bracket 200, so the orientation hole 301a can be selectively formed at the projection point of the extending direction of the first orientation member 3 and the second orientation member 4 when the stroller is straight. Preferably, the directional hole 301a can be formed in two, and the two directional holes 301a can be respectively located on the opposite side of the pivoting shaft of the vehicle bracket 200. The projection point of the extending direction of the first orientation member 3 and the second orientation member 4 when the baby carriage is straight and the projection point are pivotally connected to the opposite side of the pivot axis of the bracket 200 with respect to the carrier 301. Through the above design, when the stroller is reversing, the first orientation member 3 and the second orientation member 4 are selectively insertable into the orientation holes 301a.

Referring again to FIGS. 3 and 4, the first elastic member 5 is disposed between the first orientation member 3 and the front bracket 201 and provides an elastic force for inserting the first orientation member 3 into the orientation hole 301a. The second elastic member 7 is disposed between the second orientation member 4 and the rear bracket 202 and provides an elastic force for inserting the second orientation member 4 into the orientation hole 301a. The first elastic member 5 and the second elastic member 7 may be compression springs. Since the traction member 2 has a soft characteristic, the traction member 2 can only pull the first orientation member 3 and the second orientation member 4, but the first orientation member 3 and the second orientation member 4 cannot be returned to the original position. By using the design of the first elastic member 5 and the second elastic member 7, the first elasticity is utilized The elastic restoring force of the piece 5 and the second elastic member 7 is such that the first or second orientation member 3 and the second orientation member 4 can be returned to the original position, so that the first orientation member 3 and the second orientation member 4 can be carried The insert 301 is repetitively inserted and disengaged, and an elastic force is provided to keep either the first directional member 3 and the second directional member 4 in engagement with the directional hole 301a when locking, thereby ensuring the first directional member 3 And the second orientation member 4 does not accidentally disengage from the wheel element 300, thereby acting to prevent accidental unlocking. More specifically, the elastic force of the second elastic member 7 may be greater than the elastic force of the first elastic member 5, and since the elastic forces of the first elastic member 5 and the second elastic member 7 are different, in the initial state, The second elastic member 7 can insert the second orientation member 4 on the rear wheel member, and the first elastic member 5 is pulled by the second elastic member 7 to disengage the first orientation member 3 from the front wheel member, thereby The rear wheel member is oriented and the front wheel member is a universal wheel. That is, the first driving member can drive the wheel orientation mechanism 100 to switch between the first state and the second state, and when the wheel orientation mechanism 100 is in the first state, the second elastic member 7 is applied to the first traction member 21 The force is greater than the force applied by the first elastic member 5 to the first traction member 21 such that the second orientation member 4 is inserted onto the rear wheel member and causes the first orientation member 3 to be disengaged from the front wheel member; when the wheel orientation mechanism 100 When in the second state, the force applied by the second elastic member 7 to the first traction member 21 is smaller than the force applied by the first elastic member 5 to the first traction member 21, so that the first orientation member 3 is inserted into the front wheel. The element and the second orientation member 4 are disengaged from the rear wheel member.

As shown in FIG. 3, the drive carousel 1 is pivotally coupled to the vehicle frame 200 and coupled to the second traction member 22. The drive carousel 1 has a fixing hole 12, and the second traction member 22 is fixed to the fixing hole 12. The drive carousel 1 winds or releases the second traction member 22 as it rotates. As the driving turntable 1 rotates, one end of the first traction member 21 is shortened, thereby compressing the elastic member of the end and retracting the orientation member of the end into the vehicle bracket 200, and driving the end of the orientation member relative to the vehicle via the elastic member at the other end. The bracket 200 is moved outwards. Therefore, it is only necessary to rotate the drive dial 1 in use, so that the opposite member can be inserted on the carrier 301 at the same time and the other orientation member can be pulled out of the other carrier 301, which simplifies The structure and reduced operational steps make the operation more convenient. The driving turntable 1 is formed with an arc-shaped guiding hole 11 formed on the vehicle bracket 200 (not shown), and the guiding column is inserted Guided in the hole 11. Since the driving turntable 1 can rotate relative to the vehicle bracket 200 when in use, the cooperation of the guiding post and the guiding hole 11 can make the driving turntable 1 rotate more smoothly on the one hand, and can limit the turning angle of the driving turntable 1 on the other hand. , thereby preventing the drive carousel 1 from rotating excessively.

Referring to FIG. 3 and FIG. 4, one end of the second traction member 22 is connected to the second orientation member 4, and the other end is connected to the drive dial 1. Since the first traction member 21 and the second traction member 22 have soft characteristics, the first traction member 21 and the second traction member 22 can be housed inside the vehicle bracket 200 and disposed along the duct of the vehicle bracket 200. In addition, through the arrangement of the first traction member 21 and the second traction member 22, the drive dial 1 can be conveniently disposed at any position of the vehicle bracket 200 to facilitate the operation of the user. The two ends of the first traction member 21 are respectively connected to the first orientation member 3 and the second orientation member 4 to ensure the opposite actions of the first orientation member 3 and the second orientation member 4 when the first traction member 21 moves. The second traction member 22 is for causing the driving turntable 1 to effectively drive the second orientation member 4 to exit the orientation hole 301a and to extend the first orientation member 3 located at one end of the first traction member 21 into another corresponding thereto. To the hole 301a, it is ensured that the action state of the first or third orientation member 3 and the second orientation member 4, respectively, to which the carrier 301 is attached is maintained.

Referring to FIG. 5, the lower end of the armrest 6 has a second driving member 61. The second driving member 61 is pivotally coupled to the driving bracket 1 coaxially on the vehicle bracket 200, and the second driving member 61 is coupled to the driving dial 1 fixed. Since the driving dial 1 is disposed inside the vehicle bracket 200 and the vehicle armrest 6 is disposed outside the vehicle bracket 200, the second driving member 61 can effectively connect the armrest 6 and the driving dial 1 to thereby make the armrest of the vehicle. The driving method of 6 is more stable. In addition, the armrest 6 of the vehicle is reversed with respect to the vehicle bracket 200 when the stroller is changed in the forward or backward use state, so that the driving dial 1 can be simultaneously rotated, thereby simultaneously locking or unlocking the wheel elements 300 before and after the stroller. The switching is performed, thereby eliminating the manual manual operation of the orientation of the wheel component 300, greatly simplifying the operation steps and further improving the convenience of use.

The second driving member 61 can extend toward the driving turntable 1 out of the fixing post 611. The driving turntable 1 is formed with a connecting hole 13 into which the fixing post 611 is inserted. Since the driving carousel 1 is disposed in the vehicle bracket 200 and the vehicle armrest 6 is disposed outside the vehicle bracket 200, the fixing post 611 can be inserted into the driving carousel 1 through the configuration in which the fixing post 611 is formed on the second driving member 61. The hole 13 is connected to enable the second driving member 61 to be operatively coupled to the driving dial 1, so that the armrest 6 can stably drive the rotation of the driving dial 1.

Combining the above design with the first to sixth figures, the following is a detailed description of the working principle of the wheel orientation mechanism 100 of the present invention. When the stroller is used in the forward direction, as shown in FIG. 1, the armrest 6 is located behind the stroller. At this time, since the elastic force of the second elastic member 7 is greater than the elastic force of the first elastic member 5, the second orientation member 4 is inserted into the orientation hole 301a provided on the corresponding carrier 301, and the first orientation member 3 is withdrawn from the orientation hole 301a on the corresponding carrier 301, thereby automatically locking the rear wheel member and making the front wheel member rotatable. When it is desired to convert the stroller into a rearward use, it is only necessary to rotate the handrail 6 so that the handrail 6 is placed in front of the stroller, as shown in Fig. 6. During the rotation, the armrest 6 can drive the second driving member 61 to rotate, and the fixing post 611 on the second driving member 61 can drive the driving dial 1 to rotate, so that the driving dial 1 is wound around the second pulling member 22. After the second traction member 22 is wound on the driving turntable 1, the second guiding member 4 can be moved up, whereby the second guiding member 4 can be moved upwards to exit the corresponding positioning hole 301a of the carrier 301. The rear wheel member is in a rotatable state. At the same time, the second elastic member 7 is compressed under the driving of the driving turntable 1 and the second pulling member 22, so that the force applied by the second elastic member 7 to the first pulling member 21 is smaller than that applied to the first elastic member 5 The force of the first traction member 21, so that the first traction member 21 is subjected to the elastic force of the first elastic member 5 to insert the first orientation member 3 into the orientation hole 301a of the carrier 301 of the front wheel member, so that the front wheel The component is locked, whereby the stroller can be used backwards, as shown in Figure 6. By analogy, by locking the armrest 6 of the vehicle, the locking and unlocking states of the front wheel member and the rear wheel member can be switched, so that the stroller can be used in the forward and backward directions.

Compared with the prior art, the present invention utilizes the first orientation member 3 and the second orientation member 4 to be slidably disposed at both ends of the vehicle bracket 200 and the first orientation member 3 and the second orientation member 4 respectively correspond to the infant. The design of the two wheel elements 300 of the vehicle, and the design of connecting the first orientation member 3 and the second orientation member 4 by the first traction member 21 and the elastic restoring force of the first elastic member 5 and the second elastic member 7 are driven. The first orientation member 3 and the second orientation member 4 can be restored to the original state, so that the first orientation member 3 and the second orientation member 4 are on the front and rear wheel members when the drive dial 1 drives the second traction member 22. The purpose of repetitive insertion and disengagement is achieved, thereby producing the effect of selectively orienting the wheel component 300 of the stroller. The present invention allows the user to control only the first drive member 1 through the simple interlocking structure design described above. It is possible to switch the wheel components that need to be oriented, and the control is very simple, so that the user can be greatly facilitated.

The above are only the preferred embodiments of the present invention, and all changes and modifications made to the scope of the present invention should be within the scope of the present invention.

1‧‧‧ drive carousel

2‧‧‧ traction parts

3‧‧‧First orientation piece

4‧‧‧Second orientation piece

5‧‧‧First elastic parts

7‧‧‧Second elastic parts

11‧‧‧ Guide hole

12‧‧‧Fixed holes

13‧‧‧connection hole

21‧‧‧First traction parts

22‧‧‧Second traction parts

100‧‧‧ wheel alignment mechanism

Claims (14)

A wheel orientation mechanism is mounted on a vehicle bracket of a child carrier for orienting a front wheel component and a rear wheel component respectively located on the front and rear sides of the child carrier, the wheel orientation mechanism comprising: a first traction The first and second orientation members are respectively coupled to the two ends of the first traction member and slidably mounted on the two ends of the vehicle bracket for respectively locking and releasing the front wheel member and the rear wheel member a first driving member mounted on the vehicle bracket for driving the first orientation member to lock or unlock the front wheel member and simultaneously driving the second orientation member to unlock or lock the rear wheel member; a second traction member coupled to the second orientation member and the first drive member; and first and second elastic members coupled to the first and second orientation members, respectively. The wheel orientation mechanism of claim 1, wherein the elastic force of the second elastic member is greater than the elastic force of the first elastic member. The wheel orientation mechanism of claim 1, wherein the first driving member drives the wheel orientation mechanism to switch between a first state and a second state, and when the wheel orientation mechanism is in the first state, the second elasticity The force applied to the first traction member is greater than the force applied by the first elastic member to the first traction member, and when the wheel orientation mechanism is in the second state, the second elastic member is applied to the first The force of the traction member is less than the force applied by the first elastic member to the first traction member. The wheel orientation mechanism of claim 3, wherein the second elastic member drives the second orientation member to move outward relative to the vehicle bracket when the wheel orientation mechanism is in the first state, when the wheel orientation mechanism is in the second In the state, the first elastic member drives the first orientation member outward relative to the vehicle bracket mobile. The wheel orientation mechanism of claim 3, wherein when the wheel orientation mechanism is in the second state, the second elastic member is compressed by the second traction member to apply the second elastic member to the first The force of a traction member is less than the force applied by the first elastic member to the first traction member. The wheel orientation mechanism of claim 3, wherein when the wheel orientation mechanism is in the first state, the rear wheel component corresponding to the second orientation member is in a locked state, and the front wheel corresponding to the first orientation member The component is in a released state. The wheel orientation mechanism of claim 3, wherein when the wheel orientation mechanism is in the second state, the front wheel member corresponding to the first orientation member is in a locked state, and the second orientation member corresponds to the rear wheel The component is in a released state. The wheel orientation mechanism of claim 1, wherein the first driving member is a driving turntable, and the driving dial is pivotally connected to the vehicle bracket for winding or releasing the second pulling member when rotating. The wheel orientation mechanism of claim 8, wherein the drive dial is formed with a curved guide hole, and the bracket has a guide post, and the guide post is inserted into the guide hole. The wheel orientation mechanism of claim 8, wherein the wheel orientation mechanism further comprises a vehicle armrest, and a lower end of the armrest of the vehicle is coupled to the drive carousel and coaxially coupled to the drive bracket. The wheel orientation mechanism of claim 10, wherein the lower end of the armrest has a second driving member, the second driving member is pivotally coupled to the driving bracket coaxially on the vehicle bracket, and the second driving member is The drive dials are fixed to each other. The wheel orientation mechanism of claim 11, wherein the second driving member extends toward the driving dial to form a fixing post, and the driving bobbin is formed with a connecting hole, and the fixing post is inserted into the connecting hole. The wheel orientation mechanism of claim 1, wherein the first and second traction members are made of metal or plastic material. A child carrier includes a vehicle bracket, a front wheel member and a rear wheel member mounted on a front side of the vehicle bracket, the rear wheel member being mounted on a rear side of the vehicle bracket, wherein the child vehicle further includes a request A wheel orientation mechanism according to any one of items 1 to 13, wherein the wheel orientation mechanism is mounted on the vehicle frame for selectively orienting the front wheel member or the rear wheel member.