JP3096956U - Guide device for children's tricycle - Google Patents

Abstract

An object of the present invention is to provide a guide device for a tricycle for children, which has low cost, is easy to operate, and has improved safety during traveling.
In a guide device installed on a front fork 12 shaft rod 121 of a tricycle, an interlocking belt shaft 2 is fixed, and a driving belt shaft 3 is pivotally provided at a rear stage of a vehicle body main shaft 11. A geared belt 5 is wound between the shaft and the driving belt shaft, and the control rod 4 installed at the extreme end of the driving belt shaft is turned to control the traveling direction of the tricycle.
[Selection] Fig. 2

Description

[0001]
[Technical field to which the invention belongs]
The present invention relates to a guide device for a tricycle for children. In particular, the guide device is constituted by a driving belt shaft, an interlock belt shaft, a belt with gears, and a control stick. It is related to a highly safe and safe child tricycle guide device.
[0002]
[Prior art]
In a conventional children's tricycle, direction control and driving are mainly performed by the front wheel, the front wheel is pivotally mounted on the front fork, and the front fork shaft is pivotally mounted on the front part of the main body main shaft so that the front wheel can freely turn. Further, a handle is provided at the upper end of the front fork shaft rod, so that the riding child can control the direction of the front wheels by gripping the handle.
Furthermore, considering that children's sense of balance is inexperienced, and taking into account that accidents may occur due to erroneous direction control, attendants such as family members should follow from behind or turn forward to guide the direction and ensure safety. However, these accompanying adults must bend over a long period of time. One that has already been developed with a focus on this is a turn assist device for children's tricycles. This mainly consists of a vertical interlocking bevel gear fixed to the shaft of the front fork, and a vertical driving bevel gear also pivoted at the rear position of the main shaft of the vehicle, with horizontal bevel gears at both ends. A transmission shaft having a component is provided between the vertically-oriented interlocking bevel gear and the driving bevel gear. There is an example in which the traveling direction of a tricycle on which a child rides can be controlled by turning a front fork because the interlocking umbrella gear of this type is interlocked.
[0003]
[Problems to be solved by the invention]
However, a drawback of the above-mentioned known devices is that the force is dispersed when the vertical turning is changed to the lateral turning force, that is, the force is wasted wastefully, which is equivalent to controlling the direction. The power shaft is difficult to use because it requires a large amount of power, and the transmission shaft type requires many parts, so that the cost is high and the assembly is complicated.
Therefore, the present invention provides a guide device for a child tricycle of the present invention, which is low in cost, easy to operate, and improved in safety during running.
[0004]
[Means for Solving the Problems]
In a guide device installed on a shaft of a front fork of a tricycle, an interlocking belt shaft is fixed, and a driving belt shaft is pivotally mounted at a stage subsequent to a main body main shaft, and the interlocking belt shaft and the driving belt shaft are geared. When the control stick installed at the extreme end of the driving belt shaft is turned, the traveling direction of the tricycle on which the child rides is controlled.
[0005]
[Embodiment]
As shown in FIGS. 1 and 2, the children's tricycle 1 is mainly provided with a vehicle body main shaft portion 11, and a pivot rod 121 of a front fork 12 is pivotally mounted in front of the vehicle body main shaft portion 11. A tube 111 is provided. A front wheel 13 is pivotally provided in the middle of the front fork 12, and rear wheels 14 are provided on both sides of the rear side of the main shaft portion 11, so that the child tricycle 1 can run. At the same time, a handle 15 is provided above the front fork shaft rod 121 to control the turning direction of the front fork 12, so that the direction of travel can be operated by the handle.
[0006]
In order to guide the direction correctly when the child tricycle 1 moves forward, an interlocking belt shaft 2 on which a gear 21 is fitted is provided at a lower position of a shaft rod 121 of the front fork 12, and a rear stage of the main shaft 11 is provided. A pivot shaft 112 is provided at an upper position, and the pivot shaft 112 provides a location for pivoting the driving belt shaft 3 having the gear 31. A control rod 4 is fixed to the shaft end of the driving belt shaft 3, and a geared belt 5 is wound between the interlocking belt shaft 2 and the driving belt shaft 3 (see FIG. 3).
[0007]
In addition to the above, a pair of protruding columns for pressing the main shaft 11 with the geared belt sandwiched from both sides is provided on the lower side, and a pressing device 6 having a pair of concave grooves 62 for inserting fastening bolts 61 is provided above. Provide. (See FIGS. 5 and 6).
[0008]
With the above-described structure, when the infant actually uses the children's tricycle 1, the attendant turns the control stick 4 so that the driving belt shaft 3 is connected to the interlocking belt shaft 2 via the geared belt 5. The front fork 12 fitted and fixed together with the interlocking belt shaft 2 moves in the same direction with the turning of the control stick 4, so that the person accompanying the infant can be used for the child. The direction can be easily controlled from behind the tricycle 1 (see FIG. 4).
[0009]
Furthermore, the struts 63 at both lower ends of the pressing device 6 are pushed by the outside of the geared belt 5, and if the bolts are tightened, both struts 63 are displaced inward, and at this time the geared belt 5 is pressed.
Conversely, if the bolt 61 is loosened, the support 63 is shifted outward due to the expansion of the elasticity of the pressing device 6, and the pressing force of the geared belt 5 is eliminated, and the tension of the geared belt 5 is relaxed.
[0010]
Further, washers 22 and 23 are provided on the outer diameter of the interlocking belt shaft 2 and the driving belt shaft 3, and stop blocks 113 and 114 are provided at appropriate positions below the pivot pipe 111 of the main shaft 11 and around the pivot shaft 112. With this arrangement, the turning angle of the interlocking belt shaft 2 and the driving belt shaft 3 (that is, the turning angle of the front fork 12 and the control stick 4) can be appropriately controlled, and this is caused by the front fork 12 turning too much. Prevent dangerous accidents. In addition, the end of the control stick 4 is curved to form a grip portion 41 so that the control stick 4 can be further easily steered.
[0011]
[Effect of the invention]
According to the present invention, the cost is reduced as much as possible with a simple structure, and at the same time, the object of increasing safety is achieved.
[Brief description of the drawings]
FIG. 1 is an external view of the present invention.
FIG. 2 is an external view of a main part in the present invention.
FIG. 3 is a diagram showing an embodiment of the present invention.
FIG. 4 is a diagram showing a state in which FIG. 3 operates.
FIG. 5 is a structural diagram and a usage instruction diagram (overhead view) of the pressing device in the present invention.
FIG. 6 is a structural diagram and a use instruction diagram (a elevation view) of the pressing device in the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Tricycle for children 11 Body main shaft part 111 Piercing tube 112 Piercing shaft 113, 114 Stop block 12 Front fork 121 Front fork shaft rod 13 Front wheel 14 Rear wheel 15 Handle 2 Interlocking belt shaft 21 Gear 22, 32 Washer 3 Main driving shaft 31 gear 4 control stick 41 grip 5 belt with gear 6 pressing device 61 bolt 62 concave groove 63 support

Claims (2)

A front fork is provided at a front stage of the vehicle body main shaft, a front wheel is pivotally mounted on the front fork, a handle is provided on a shaft rod of the front fork, and a rear wheel is provided at a rear stage of the vehicle body main shaft. In the guide device of a tricycle for children provided with
An interlock belt shaft fitted and fixed on a shaft rod of the front fork;
A driving belt shaft pivotally provided at a rear stage position of the vehicle body main shaft,
A geared belt wound around the gears of the interlocking belt shaft and the driving belt shaft,
A control stick fixed to the shaft end of the driving belt shaft and controlling turning of the driving belt shaft;
A pressing device pivotally mounted on the vehicle body main shaft,
Is composed of
The pressing device is provided with a pair of protruding pillars on the lower side for pressing the belt with the gear from both sides and pressing the belt with a pair of concave grooves 62 through which fastening bolts 61 are inserted. Is adjustable,
A person accompanying an infant can easily and reliably control the direction by operating a front fork from the rear of the child tricycle with a control stick via a driving belt shaft, a geared belt, and an interlocking belt shaft. A guide device for a tricycle for children, characterized by: 2. The guide device for a tricycle for children according to claim 1, wherein the control rod end is curved and has a grip.

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