TW201604068A - Coupling mechanism of tricycle - Google Patents

Abstract

Disclosed is a coupling mechanism of a tricycle, comprising a rod, a fixed axis, a rotation element, a linkage element, a sliding block, a buffer element, and an elastic element. The rod is fixed at the tail part of the tricycle having two rear wheels. One end of the fixed axis is fixed at the tail part. The rotation element is fixed at the head part of the tricycle having one front wheel and rotatably sleeved in the other end of the fixed axis, which is not at the tail part. The linkage element protrudes out of the rotation element. The sliding block is movably connected to the rod and has an accommodating space for movably accommodating the linkage element. The buffer element and the elastic element are located at two ends of the rod. The mechanism can inwardly tilt the head part but not the tail part as the tricycle takes a turn, and will not overturn the tricycle.

Description

Coupling mechanism of tricycle

The present invention relates to the technical field of traffic vehicles; more specifically, the present invention relates to a coupling mechanism for a tricycle.

The tricycle has a front wheel and a second rear wheel, so it gives the rider an excellent balance and safety. Most tricycles drive the car forward or backward by pedaling the rider or by running the motor or engine. When the tricycle is bent, the wheels must be attached to the road. If one of them is suspended, the car will be overturned. Therefore, the tricycle cannot be bent in an inward manner like a two-wheeled vehicle, and the speed must be reduced when cornering, and the wear of the deceleration system of the tricycle is increased.

At present, some organizations have been able to provide tricycles to bend in an inward manner. For example, the Republic of China Invention Patent Publication No. I274677 discloses a structure in which an independent suspension wheel and a vehicle body are tilted together, including a link mechanism and an independent suspension wheel mechanism. The link mechanism includes an upper floating rod and is located below the upper floating rod and a bottom rod parallel to the upper floating rod and a connecting member; two ends of the upper floating rod and the bottom rod are respectively pivotally connected to the rocker to form a quadrilateral structure, and the connecting member has a protruding slider and is centrally connected with the upper floating rod The position has a sliding groove extending upwardly and downwardly, and the bottom of the connecting member is pivotally connected to the central position of the bottom rod; the independent hanging wheel mechanism is mainly composed of a shock absorber, a suspension connecting rod and a hub, and the wheel hub is suspended by the suspension The connecting rod and the rocking rod are pivotally connected, and the top and bottom of the shock absorber are respectively pivotally connected to the top of the rocker and the bottom portion of the hub or the suspension connecting rod connected thereto. For example, the anti-overturning three-wheeled motor vehicle disclosed in the Republic of China Invention Patent Publication No. I410339 has a frame, a front wheel, and a rear two-wheel assembly including a tilting base and a four-bar linkage; The first fixing frame is connected to the frame, the four-bar linkage mechanism is used for connecting the frame and the rear two wheels, and comprises a first connecting rod, a second connecting rod, a third connecting rod and a fourth connecting rod; the first connecting rod The second link is pivotally connected to the inward tilting base, and the third link and the fourth link are respectively pivotally connected to the two ends of the first link and the second link, and are respectively connected to the suspension of the second wheel, When the frame is tilted, the tilting base and the first fixing frame are inclined with the frame, so that the first link and the second link maintain a fixed angle with the road surface, and the third link and the fourth link are followed by the vehicle. The frame is tilted so that the rear two wheels are kept wide while being tilted with the frame. However, the above-mentioned link mechanism and the four-bar linkage mechanism mainly cause the front wheel and the second rear wheel of the tricycle to be inwardly tilted at the time of cornering, which may cause uneven wear of the two rear wheels and affect driving safety. Moreover, these conventional mechanisms do not have any reset mechanism, so when the tricycle is bent, the body is easily overturned due to excessive introversion.

For this reason, a coupling mechanism is designed, which can only tilt the front wheel inward when the tricycle is bent, and it is not easy to cause the body to tip over. It is indeed one of the problems actively solved by the practitioners or people in the technical field of the present invention.

It is an object of the present invention to provide a coupling mechanism that allows a front wheel to tilt inwardly while the tricycle is cornering, but does not allow the second rear wheel to tilt inward.

Another object of the present invention is to provide a coupling mechanism that does not cause the body to tip over when the tricycle is cornering.

To achieve the above and/or other objects, the present invention provides a novel tricycle coupling mechanism comprising: a rod body, a fixed shaft, a rotating member, a linkage member, a slider, a cushioning member, and an elastic Pieces. The rod body is fixed to the rear portion of the tricycle having two rear wheels. The fixed shaft is fixed to the rear portion of the vehicle with one end thereof. The rotating member is fixed to the head of the tricycle having a front wheel and is rotatably sleeved outside the other end of the fixed shaft different from the rear portion of the vehicle. The linking member protrudes from the rotating member. The slider is movably coupled to the shaft and has an accommodation space for movably receiving the linkage therein. The cushioning member and the elastic member are disposed at two ends of the rod body. Through the structure, when the rotating member rotates in a first direction with the fixed shaft as the axis, the linking member moves from a first position of the receiving space to a second position thereof and the first position is higher than the second position to brake Moving the slider to compress the buffer member and the elastic member at either end of the rod body; and when the rotating member rotates in a second direction different from the first direction with the fixed shaft as the axis, the linking member is moved from the second position to the first position A position is moved to brake the slider to the center of the rod to reset the cushioning member and the elastic member.

To achieve the above and/or other objects, the present invention further provides a novel coupling mechanism for a tricycle, comprising: a rod body, a fixed shaft, a rotating member, a linking member, a slider, a buffer member, and a Elastic parts. The rod body is fixed to the rear portion of the tricycle having two rear wheels. The fixed shaft is fixed to the rear portion of the vehicle with one end thereof. The rotating member is fixed to the head of the tricycle having a front wheel and is rotatably sleeved outside the other end of the fixed shaft different from the rear portion of the vehicle. The linking member protrudes from the rotating member. The slider is movably coupled to the shaft and has an accommodation space for movably receiving the linkage therein. The cushioning member is disposed at two ends of the rod body. The elastic member is located between the rotating member and one end of the fixed shaft sleeved with the rotating member. With this configuration, when the rotating member rotates in a first direction with the fixed shaft as an axis to compress the elastic member, the linking member moves from a first position of the receiving space to a second position thereof and the first position is higher than the first position In the two positions, the slider is braked to move the buffer member to either end of the rod body; and when the rotating member rotates in a second direction different from the first direction with the fixed shaft as the axis to reset the elastic member, the linkage member Moving from the second position to the first position, the slider is braked to move the slider toward the center of the shaft to reset the cushioning member.

According to the above two inventions, the rod body and the fixed shaft are both fixed to the rear portion of the vehicle, and the rotating member is fixed to the head of the vehicle. Therefore, when the tricycle passes the corner, the rotation of the rotating member in the first direction and the simultaneous occurrence of the linkage to the second Movement of the position and movement of the slider to either end of the shaft can cause the head to tilt inward but the tail is not tilted inwardly. When cornering, the compressed cushioning member can slow the movement of the slider to either end of the shaft to avoid the discomfort caused by the head tilting too fast. The compressed elastic member can provide the slider to move to the center of the rod. The power to avoid the body overturning. On the other hand, after the cornering, the rotation of the rotating member in the second direction, and the movement of the linkage to the first position and the movement of the slider to the center of the rod may cause the head to return. After the cornering, the resetting cushion can slow down the speed at which the slider moves toward the center of the shaft to avoid discomfort caused by the head being too fast.

In order to make the above and/or other objects, functions and features of the present invention more comprehensible, the following detailed description of the preferred embodiments,

Referring to FIGS. 1 through 6, these drawings illustrate a coupling mechanism (A) of a first embodiment of the present invention. This mechanism (A) is installed in a tricycle, which can assist the car to have a front wheel head (B) that is tilted when the car is cornering but has a rear wheel (C) that does not tilt inward and avoids overturning. The coupling mechanism (A) of the present embodiment is disposed between the head portion (B) and the tail portion (C), and includes a rod body (1), a support rod (2), a fixed shaft (3), and a a rotating member (4), a linking member (5), a slider (6), a cushioning member (7) and an elastic member (8).

As shown in Figures 3 and 4, the rod body (1) and the support rod (2) are both fixed to the rear portion (C) of the tricycle.

As shown in Figures 5 and 6, the fixed shaft (3) has a first end (31) and a second end (32) opposite the first end (31). The first end (31) is fixed to the rear portion (C), and the second end (32) has a bearing (33) and a recess (34).

As shown in Figures 3 to 6, the rotating member (4) is fixed to the head (B) and rotatably sleeved outside the second end (32) of the fixed shaft (3). In the present embodiment, the rotating member (4) is formed by covering an upper cover (41) and a lower cover (42), which is intended to facilitate assembly or disassembly of the rotating member (4) as necessary. In this embodiment, the rotating member (4) may have a rotatable fastening member (43), and the recess (34) of the fixed shaft (3) corresponds to the fastening member (43). Through this structural relationship, when the tricycle is parked, the buckle (43) can be rotated to buckle the groove (34), thereby preventing the rotating member (4) from rotating with the fixed shaft (3) as an axis to avoid the front end. Part (B) is naturally inclined; when the tricycle is running, the buckle (43) can be rotated to remove the groove (34), thereby purposefully realizing the rotation of the rotating member (4) with the fixed shaft (3) as the axis. In order to achieve the purpose of only tilting the head (B) of the car.

As shown in Figures 3 and 4, the linking member (5) protrudes from the rotating member (4). In this embodiment, the linking member (5) includes a triangular plate (51) and a rotating block (52), and the triangular plates (51) are locked to the rotating member (4), and the rotating block (52) is rotatably disposed. A bearing (not shown) is sleeved between the triangular plates (51).

As shown in Figures 3 and 4, the slider (6) is movably coupled to the rod body (1) and the support rod (2) and has a receiving space (61). Moreover, this space (61) is for the linkage (5) to be movably received therein. It should be noted that the slider (6) is separately connected to the rod body (1) to achieve the purpose of moving the slider (6) discussed below to either end or the center of the rod body (1), but then connected to the support rod. (2) It can increase the stability of the movement (that is, avoid the sway when the slider (6) moves).

As shown in FIGS. 3 and 4, the cushioning member (7) and the elastic member (8) are disposed at both ends of the rod body (1). In the present embodiment, the cushioning member (7) may be, but not limited to, a hydraulic shock absorber, and the elastic member (8) may be, but not limited to, a compression spring.

Please refer to Figures 3 and 4 for further description of the use of the coupling mechanism (A) of the present embodiment on a tricycle:

First, when the tricycle is bent, the rotating member (4) rotates in a first direction (F) with the fixed shaft (3) as an axis; specifically, the rotating member (4) is fixed by the bearing of the shaft (3) The brake of (33) is rotated in the first direction (F). At this time, the linking member (5) moves downward from a first position (such as FIG. 3) of the accommodating space (61) to a second position of the accommodating space (61) (FIG. 4) (ie, a linkage ( 5) Move downward through the braking of the bearing of the rotating block (52), and move the slider (6) to either end of the rod (1) in conjunction. The rod body (1) and the fixed shaft (3) are fixed to the rear portion (C), and the rotating member (4) is fixed to the vehicle head portion (B), so that the rotation of the rotating member (4) in the first direction (F) is possible When passing the corner, the head (B) is tilted inward but does not move the tail (C) inward. Moreover, the slider (6) can compress the cushion member (7) and the elastic member (8) while moving toward either end of the rod body (1). The compressed cushioning member (7) can slow the movement of the slider (6) to either end of the rod body (1), thereby preventing the head (B) from being tilted too fast and causing discomfort; the compressed elastic member (8) can be A force is provided by the slider (6) for subsequent movement to the center of the shaft (1), thereby preventing the tricycle from tipping over when cornering.

Secondly, after the cornering, the rotating member (4) rotates in a second direction (R) different from the first direction (F) with the fixed shaft (3) as an axis; specifically, the rotating member (4) The second bearing (R) is rotated by the braking of the bearing (33) of the fixed shaft (3). At this time, the linkage (5) is moved upward from the second position to the first position (that is, the linkage (5) is moved upward by the brake of the bearing of the rotating block (52)), and the slider (6) is moved in conjunction with each other. To the center of the rod (1). The rotation of the rotating member (4) in the second direction (R) is based on the relationship that the rod body (1) and the fixed shaft (3) are fixed to the rear portion (C) and the rotating member (4) is fixed to the head portion (B). The head (B) can be driven back after the cornering. In addition, the buffer member (7) and the elastic member (8) can be reset while moving the slider (6) toward the center of the rod body (1). The resetting cushioning member (7) can slow the movement of the slider (6) toward the center of the rod body (1), thereby preventing the head (B) from being returned too fast and causing discomfort.

Referring to Figures 7 and 8A-B, such drawings depict a coupling mechanism (A) of a second embodiment of the present invention that is similar in construction and use to the coupling mechanism of the first embodiment. However, the difference between the two is as follows:

The elastic member (8) of the present embodiment is disposed between the rotating member (4) and the second end (32) of the fixed shaft (3), and may be, but not limited to, an elastic block or an elastic ball. When the tricycle is bent, the rotating member (4) can rotate the first direction (F) while compressing the elastic member (8) to provide the force of the slider (6) moving toward the center of the rod (1). Avoid overturning when the tricycle is cornering. After the cornering, the rotating member (4) is rotated in the second direction (R) to reset the elastic member (8).

Referring to FIG. 9, the drawing shows a coupling mechanism (A) according to a third embodiment of the present invention, which is similar in structure and use to the coupling mechanism of the second embodiment. However, the difference between the two is as follows:

The coupling mechanism (A) of the present embodiment does not have a support rod (2), whereby the overall weight of the tricycle can be reduced.

In summary, the coupling mechanism of the embodiments can provide that the head of the vehicle is tilted when the tricycle is bent, but the tail portion is not tilted, and does not cause the tricycle to tip over.

Although the present invention has been disclosed in its preferred embodiments, it is not intended to limit the invention, and the invention may be modified by those skilled in the art without departing from the spirit and scope of the invention. The scope of the present invention is intended to be in accordance with the scope of the appended claims.

(A) ‧ ‧ coupling mechanism (B) ‧ ‧ head (C) ‧ ‧ tail (F) ‧ ‧ first direction (R) ‧ ‧ second direction (1) ‧ ‧ pole Body (2) ‧ ‧ support rod (3) ‧ ‧ fixed shaft (31) ‧ ‧ first end (32) ‧ ‧ second end (33) ‧ ‧ bearing (34) ‧ ‧ groove (4) ‧ ‧ rotating parts (41) ‧ ‧ upper cover (42) ‧ ‧ lower cover (43) ‧ ‧ fasteners (5) ‧ ‧ linkages (51) ‧ ‧ triangular plates (52) ‧‧‧Rotating block (6)‧‧‧slider (61)‧‧‧Accommodation space (7)‧‧‧ cushioning parts (8)‧‧‧ elastic parts

1 is a perspective view showing the coupling mechanism of the first embodiment of the present invention in a tricycle. 2 is a partial disassembled view showing the coupling mechanism of the first embodiment mounted on a tricycle. Fig. 3 is a schematic view showing the state of the coupling mechanism of the first embodiment when the tricycle is bent. Fig. 4 is a schematic view showing the state of the coupling mechanism of the first embodiment after the tricycle is bent. Fig. 5 is a schematic view showing the state of the coupling mechanism of the first embodiment when the tricycle is traveling. Fig. 6 is a schematic view showing the state of the coupling mechanism of the first embodiment when the tricycle is parked. Fig. 7 is a partial perspective view showing the coupling mechanism of the second embodiment of the present invention in a tricycle. Fig. 8A is a cross-sectional view showing the state of the coupling mechanism of the second embodiment when the tricycle is bent. Fig. 8B is a cross-sectional view showing the state of the coupling mechanism of the second embodiment after the tricycle is bent. Figure 9 is a partial perspective view showing the coupling mechanism of the third embodiment of the present invention applied to a tricycle.

(R)‧‧‧second direction

(1)‧‧‧ rods

(2) ‧ ‧ support rods

(4) ‧‧‧Rotating parts

(41) ‧ ‧ upper cover

(42) ‧ ‧ lower cover

(5) ‧‧‧ linkages

(51) ‧‧‧ triangle

(52) ‧‧‧Rotating blocks

(6)‧‧‧ Slider

(61)‧‧‧ accommodating space

(7) ‧‧‧ cushioning parts

(8)‧‧‧Flexible parts

Claims (8)

A coupling mechanism for a tricycle, comprising: a rod fixed to a tail portion of the tricycle having two rear wheels; a fixed shaft fixed at one end of the tail portion; a rotating member fixed to the tricycle a head of a front wheel is rotatably sleeved on the other end of the fixed shaft different from the rear end of the vehicle; a linkage member protrudes from the rotating member; and a slider movably coupled to the rod The body has a receiving space for movably receiving the linking member therein; and a cushioning member and an elastic member are disposed at both ends of the rod body; thereby, when the rotating member is fixed to the fixed shaft When the shaft is rotated in a first direction, the linkage moves from a first position of the receiving space to a second position thereof and the first position is higher than the second position to brakely move the slider to Either end of the rod body compresses the cushioning member and the elastic member; and when the rotating member rotates in a second direction different from the first direction with the fixed shaft as an axis, the linking member is from the second Moving the position to the first position to move the brake To block the rod at the center of the cushion member and resets the resilient member. The coupling mechanism of claim 1, wherein the rotating member has a rotatable fastening member, and the fixing shaft is sleeved with one end of the rotating member and has a groove corresponding to the fastening. The piece is for the fastening component to be buckled or removed from the groove. The coupling mechanism of claim 1, further comprising: a support rod fixed to the tail portion, and the slider is movably coupled to the support rod. The coupling mechanism of claim 1, wherein the rotating member comprises an upper cover and a lower cover that covers the upper cover. A coupling mechanism for a tricycle, comprising: a rod fixed to a tail portion of the tricycle having two rear wheels; a fixed shaft fixed at one end of the tail portion; a rotating member fixed to the tricycle a head of a front wheel is rotatably sleeved on the other end of the fixed shaft different from the rear end of the vehicle; a linkage member protrudes from the rotating member; and a slider movably coupled to the rod The body has a receiving space for the connecting member to be movably received therein; a cushioning member is disposed at two ends of the rod body; and an elastic member is located at the rotating member and the fixing shaft is sleeved Between one end of the rotating member; thereby, when the rotating member rotates in a first direction with the fixed shaft as an axis to compress the elastic member, the linking member is from a first position of the receiving space to the same a second position is moved and the first position is higher than the second position to brakely move the slider to either end of the rod to compress the cushioning member; and when the rotating member is axially oriented with the fixed shaft a second direction rotation different from the first direction When the resilient member, the interlocking member moves from the second position to the first position, to move the brake to the center of the slide shaft member to reset the buffer. The coupling mechanism of claim 5, wherein the rotating member has a rotatable fastening member, and the fixing shaft is sleeved with one end of the rotating member and has a groove corresponding to the fastening. The piece is for the fastening component to be buckled or removed from the groove. The coupling mechanism of claim 5, further comprising: a support rod fixed to the rear portion of the vehicle, and the slider is movably coupled to the support rod. The coupling mechanism of claim 5, wherein the rotating member comprises an upper cover and a lower cover that covers the upper cover.