CN2606049Y

CN2606049Y - Steering limiter on front wheel

Info

Publication number: CN2606049Y
Application number: CN 03219976
Authority: CN
Inventors: 陈定兴
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-02-19
Filing date: 2003-02-19
Publication date: 2004-03-10
Anticipated expiration: 2013-02-19

Abstract

The utility model discloses a steering limiter on front wheel, which comprises a frame, a front fork and a limiting ring block, the frame is provided with a front tube, the front fork is provided with a vertical tube, the vertical tube of the front fork is arranged in the front tube of the frame, the limiting ring block is arranged under the front tube, a ring plate is arranged outside the vertical tube of the front fork, the ring plate is provided with an arc-shaped limiting runner, a convex post corresponding to the limiting runner is arranged on the limiting ring block, the convex post of the limiting ring block is arranged in the limiting runner of the ring plate, when the front fork and the wheel under the front fork are turned left and right relative to the frame, the convex post of the limiting ring block on the frame is run into the limiting runner, so the angle of rotating left and right on the front fork and the front wheel can be limited.

Description

The front-wheel steering restraint device

Technical field

The utility model relates to a kind of front-wheel steering restraint device, refers to a kind of front-wheel steering restraint device that is used for child's tricycle or Kickboard Scooter etc. especially.

Background technology

The front-wheel of existing child's tricycle or Kickboard Scooter all be left-right rotation angle without limits, though the front-wheel flexible operation of rotational angle without limits, but be not suitable for each children, especially react slower or young child, they to control ability relatively poor, if angle of turn is excessive, tend to fall down, therefore, the brake drum of front wheel right hand and left hand right-hand rotation angle that American-European countries has limited child's tricycle or Kickboard Scooter can only respectively be 75 degree, and the greatest limit that promptly turns left is 75 degree, and the right-hand rotation greatest limit also is 75 degree, therefore be necessary in fact to design a kind of front fork that limits turning or rotational angle, to address the above problem.

The utility model content

The purpose of this utility model is to provide a kind of front-wheel steering restraint device, and it is used for limiting front fork and the following relative vehicle frame left-right rotation of front-wheel angle thereof.

To achieve these goals, technical solution of the present utility model is: a kind of front-wheel steering restraint device, comprise vehicle frame, front fork, check ring piece, vehicle frame has preceding pipe, and front fork has vertical tube, the vertical tube of front fork is worn pivot in the preceding pipe of vehicle frame, pipe below before the check ring piece is located at, the vertical tube of front fork sets firmly ring plate outward, and ring plate is provided with the restriction chute of arc, corresponding restriction chute is provided with projection on the check ring piece, and the projection embedding cunning of check ring piece is in the restriction chute of ring plate.

Described restriction chute is an outside osed top enclosed slot.

Described restriction chute is the open opening groove in the outside.

Aforesaid front-wheel steering restraint device, wherein the lower edge of pipe is provided with breach before the vehicle frame, and the lower edge of corresponding preceding pipe is provided with the embedding ditch of chimeric preceding pipe lower edge on the check ring piece, and the breach of pipe is provided with positioning rib, positioning rib inlay card breach before the embedding ditch correspondence of check ring piece.

After adopting said structure, during operation, when the relative vehicle frame left-right rotation of front fork, the projection embedding cunning of check ring piece is in the restriction chute on the vehicle frame, the angle of restriction front fork left-right rotation (respectively 75 degree or totally 150 degree for example), the front-wheel (not shown) is articulated under the front fork, and then limited the angle of front-wheel left-right rotation, the utility model is compared with the front fork of commonly using child's tricycle or Kickboard Scooter and fore wheel structure, has really can limit front fork and following front-wheel relative vehicle frame left-right rotation angle thereof and guarantee the enhancement effect that the child is safe in utilization.

Description of drawings

Fig. 1 is the exploded drawings of the utility model embodiment;

Fig. 2 is the block diagram of the utility model embodiment;

Fig. 3 is the longitudinal section of the utility model embodiment;

Fig. 4 is the cross-sectional enforcement illustration of holding concurrently of looking of the utility model embodiment;

Fig. 5 is the exploded drawings of another embodiment of the utility model.

The specific embodiment

As shown in Figure 1, the utility model comprises vehicle frame 1, front fork 2 and check ring piece 3 (the utility model can be applicable to child's tricycle and Kickboard Scooter, but other structures of child's tricycle or Kickboard Scooter are for commonly using, so do not draw and give unnecessary details), wherein:

Pipe 11 before vehicle frame 1 has, the lower edge of preceding pipe 11 is provided with breach 12;

Front fork 2 has vertical tube 21, and vertical tube 21 outer shrouds set firmly ring plate 22, and ring plate 22 is provided with the restriction chute 23 of arc closed;

The lower edge of corresponding preceding pipe 11 is provided with embedding ditch 31 on the check ring piece 3, be used for chimeric before pipe 11 lower edge, the breach 12 of embedding ditch 31 corresponding preceding pipes 11 is provided with positioning rib 32, and the central authorities of check ring piece 3 are provided with perforation 33 and wear pivot for vertical tube 21, and the restriction chute 23 of check ring piece 3 corresponding front forks 2 is provided with projection 34.

Extremely shown in Figure 4 as Fig. 2, the lower edge of the embedding ditch 31 chimeric preceding pipes 11 of check ring piece 3, the breach 12 of pipe 11 before positioning rib 32 is embedded in, pipe 11 lower edge and can not rotating before being fixed on, the vertical tube 21 of front fork 2 is worn pivot in the perforation 33 of the preceding pipe 11 of vehicle frame 1 and check ring piece 3, make front fork 2 vehicle frame 1 left-right rotation relatively, the projection 34 embedding cunnings of check ring piece 3 are in the restriction chute 23 of the ring plate 22 of front fork 2.

During operation, as shown in Figure 4, when relative vehicle frame 1 left-right rotation of front fork 2, the projection 34 embedding cunnings of the check ring piece 3 on the vehicle frame 1 are in restriction chute 23, the angle of restriction front fork 2 left-right rotation (respectively 75 degree or totally 150 degree for example), the front-wheel (not shown) is articulated in front fork 2 times, has limited the angle of front-wheel left-right rotation.

As shown in Figure 5, another embodiment of the present utility model comprises vehicle frame 1A, front fork 2A and check ring piece 3A, wherein:

Pipe 11A before vehicle frame 1A has, the lower edge of preceding pipe 11A is provided with breach 12A;

Front fork 2A has vertical tube 21A, and vertical tube 21A outer shroud sets firmly ring plate 22A, and ring plate 22A is provided with the restriction chute 23A of arc;

The lower edge that check ring piece 3A goes up corresponding preceding pipe 11A is provided with embedding ditch 31A, be used for chimeric before the pipe 11A lower edge, the breach 12A of pipe 11A is provided with positioning rib 32A before the embedding ditch 31A correspondence, check ring piece 3A central authorities are provided with perforation 33A and wear pivot for vertical tube 21A, and the restriction chute 23A of the corresponding front fork 2A of check ring piece 3A is provided with projection 34A.

The difference of another embodiment of the present utility model is to limit the chute 23A outside and is open opening groove, but its effect still the restriction chute 23 with aforementioned closed is identical.

In sum, the utility model is compared with the front fork of commonly using child's tricycle or Kickboard Scooter and fore wheel structure, has really can limit front fork left-right rotation angle and guarantee the enhancement effect that the child is safe in utilization.

Claims

1, a kind of front-wheel steering restraint device, comprise vehicle frame, front fork, vehicle frame has preceding pipe, and front fork has vertical tube, and the vertical tube of front fork is worn pivot in the preceding pipe of vehicle frame, it is characterized in that: this device also comprises the check ring piece, pipe below before the check ring piece is located at, the vertical tube outer shroud of front fork sets firmly ring plate, and ring plate is provided with the restriction chute of arc, corresponding restriction chute is provided with projection on the check ring piece, and the projection embedding cunning of check ring piece is in the restriction chute of ring plate.

2, front-wheel steering restraint device as claimed in claim 1 is characterized in that: the restriction chute is an outside osed top enclosed slot.

3, front-wheel steering restraint device as claimed in claim 1 is characterized in that: the restriction chute is the open opening groove in the outside.

4, front-wheel steering restraint device as claimed in claim 1, it is characterized in that: the lower edge of pipe is provided with breach before the vehicle frame, the lower edge of corresponding preceding pipe is provided with the embedding ditch of chimeric preceding pipe lower edge on the check ring piece, and the breach of pipe is provided with positioning rib, positioning rib inlay card breach before the embedding ditch correspondence of check ring piece.