JP2001252389A - Foldable kick skateboard - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a foldable kick skateboard improved in mechanical strength, and further, facilitated in operation and improved in handling ability by making the assembly state extremely strong. SOLUTION: This skateboard is composed of a body board 1 provided with a rear wheel 6 at the rear part so as to freely rotate it, a handle shaft 2 provided with a front wheel 10 at the lower end part so as to be freely rotatable and a connecting member 3 in the shape of hollow angular cylinder supporting the handle shaft so as to be freely rotatable by a bearing part 11 provided at the top end, the connecting member 3 is supported by a supporting shaft 14 of a pair of bearing plates 12 and 12 so as to be folded, both the bearing plates 12 are formed with an arcuate guide hole 15 and fixing holes 16a and 16d with the supporting shaft 14 as a center, and a fastening shaft equipped with a fastening lever 22 on the head is guided and folded from the guide hole 15 into the fixing hole 16b.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a kick skateboard with a handle provided with a handle so as to be foldable and having one foot put on a body board and moving forward by kicking the ground with the other foot. .

[0002]

2. Description of the Related Art A kick skateboard having a handle foldable is known from Utility Model Registration No. 3045765.

[0003] By the way, since the conventional handle folding structure is connected by a bendable link, there is a drawback that the handle is not strong enough to be easily broken, or the holding force in the assembled state is not sufficient.

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to provide a foldable kick skateboard which solves the above-mentioned drawbacks, has mechanical strength, and can strongly maintain an assembled state.

[0005]

For this purpose, a foldable kick skateboard according to the present invention comprises a body board having a rear wheel rotatably provided at a rear portion and a handle having a front wheel rotatably provided at a lower end portion. A shaft and a hollow rectangular tube-like connecting member in which the handle shaft is rotatably supported by a bearing portion provided at a tip end, and a pair of bearing plates are fixed in an upright manner on the front upper surface of the body board. The connecting member is foldably supported on a fulcrum shaft laid between the bearing plates, and arcuate guide holes centered on the fulcrum shaft are formed in both bearing plates, and both ends of the guide hole are formed. A fixing shaft extending in the axial direction of the fulcrum is formed, and a tightening shaft provided with a tightening lever at the head is inserted through the guide hole into vertically long holes formed on both side surfaces of the connecting member, and a projecting end of the tightening shaft is formed. Provided with retaining means such as cap nuts,
The tightening shaft is urged in the axial direction of the fulcrum by a spring, and further,
A fixing release lever having a tip end extending below the tightening shaft is pivotally supported in the connecting member, and the fixing releasing lever is protruded rearward from a window hole formed in a rear side surface of the connecting member. Is operated so that the tightening shaft can be separated from the fixing hole into the guide hole against the elasticity of the spring.

[0006]

Next, an embodiment of the present invention will be described. FIG. 1 is a perspective view of the kick skateboard.
The foldable kick skateboard includes a body board 1, a handle shaft 2, and a connecting member 3. The vehicle body board 1 has a pair of bearing arms 5 extending from a rear portion of a template 4 large enough to hold one foot, and a rear wheel 6 is rotatably supported by the bearing arms. Reference numeral 7 denotes a brake cover provided on the rear portion of the template 4 so as to cover the rear wheel 6. When the cover is depressed with a foot, the inner surface of the cover becomes the rear wheel 6.
Is pressed against the outer periphery of the vehicle and the brake is applied.

The handle shaft 2 has a double pipe structure and is configured to be extendable and contractible. A T-shaped handle 8 is formed at an upper end, and a forked fork 9 is provided at a lower end thereof. The front wheel 10 is rotatably supported by the fork.

The connecting member 3 is formed in a hollow rectangular tube shape, and a cylindrical bearing portion 11 is provided at the tip thereof, and the handle shaft 2 is rotatably supported by the bearing portion.

As shown in FIGS. 2 to 4, a pair of fan-shaped bearing plates 1 are provided on the upper surface of the front part of the template 4 of the body board 1.
The support shafts 2 and 12 are fixed in an upright state by screws 13, and a fulcrum shaft 14 is suspended between the bearing plates, and the fulcrum shaft is inserted into the lower end of the connecting member 3 slidably interposed between the bearing plates. The connecting member 3 is supported so as to be foldable in the direction indicated by the arrow a. The bearing plates 12, 12 are formed with arcuate guide holes 15, 15 centered on a fulcrum shaft 14, and fixed holes 16a, 16b extending in the direction of the fulcrum shaft 14 at both ends of the respective guide holes. Are each formed in a hook shape.

Then, bushings 18, 17 are formed in the vertically long holes 17, 17 and the guide holes 15, 15 formed on both side surfaces of the connecting member 3.
18 is inserted. Reference numeral 20 denotes a tightening shaft having an orthogonal shaft 21 integrally formed on a head thereof and a base 23 of a tightening lever 22 rotatably inserted through the orthogonal shaft 21. The tightening shaft 20 is inserted through the bushes 18, 18. At the projecting end of the tightening shaft 20, a retaining means such as a cap nut 24 is provided. The tightening lever 2
Reference numeral 2 denotes a curved ball, and its base 23 is formed in a form in which its outer diameter is spirally enlarged.

Reference numeral 25 denotes a tension spring having one end locked to the fulcrum shaft 14 and the other end locked to the tightening shaft 20. The elasticity of the spring urges the tightening shaft 20 in the direction of the fulcrum shaft 14.
Reference numeral 26 denotes a fixing release lever rotatably supported by a pivot 27 laid horizontally in the connecting member 3, and the fixing releasing lever is operable to open the window hole 2 formed on the rear side surface of the connecting member 3.
8, and its tip 29 extends below the tightening shaft 20. For this reason, when the projecting portion of the fixing release lever 26 is manually pushed down as shown by the arrow b in FIG.
It is configured to be lifted against the elasticity of the body.

In the kick skateboard thus constructed, in the state shown in the figure, since the tightening shaft 20 inserted through the bushes 18, 18 is pulled by the spring 25 and is in the fixing hole 16a, the handle shaft 2 stands upright. When the tightening lever 22 is rotated in the direction shown by the arrow in this state, the outer circumferential surface of the base 23 presses the end surface of the bush 18 so that the tightening shaft 20 is pulled and the two bearing plates 12 and 12 are fixed.
Is pressed against both side surfaces of the connecting member 3, and the handle shaft 2 is firmly held in this upright state.

When folding, the tightening lever 2
2 is rotated in the opposite direction to release the tension of the tightening shaft 20,
The fixing release lever 26 is depressed to tighten the tightening shaft 20 with the spring 2.
5, the tightening shaft is disengaged from the fixing hole 16a into the guide holes 15 and 15 by lifting, and the handle shaft 2 is overlaid on the body board 1 by tilting the handle shaft 2 backward. Can be Then, the tightening shaft 20 is inserted into the fixing hole 16b by the elasticity of the spring 25, thereby being held in a folded state.

[0014]

As described above, the foldable kick skateboard of the present invention comprises a body board having a rear wheel rotatably provided at a rear portion, a handle shaft having a front wheel rotatably provided at a lower end, and a tip end. A handlebar shaft rotatably supported by a bearing provided on the vehicle body board, and a pair of bearing plates are fixed to the upper surface of the front part of the vehicle body board in an upright manner. The connecting member is foldably supported on a fulcrum shaft interposed between the fulcrum shafts, arcuate guide holes centered on the fulcrum shaft are formed in both bearing plates, and the fulcrum shafts are formed at both ends of the guide hole. A fixing shaft formed with a fixing lever extending in the direction, a tightening shaft provided with a tightening lever on the head is inserted from the guide hole into a vertically long hole formed on both side surfaces of the connecting member, and a cap nut or the like is formed at a projecting end of the tightening shaft. Means to prevent the tightening shaft from being attached by a spring in the axial direction of the fulcrum. Further, a fixing release lever having a tip portion extending below the tightening shaft is pivotally supported in the connecting member, and the fixing releasing lever projects rearward from a window hole formed on a rear side surface of the connecting member, By operating the fixing release lever, the tightening shaft can be detached from the fixing hole into the guide hole against the elasticity of the spring, so that the assembling state is very robust and the mechanical strength is reduced. Strong and difficult to destroy. In addition, since the fixing release lever projects from the rear side surface of the connecting member, there is an advantage that the operation is easy and the handling is extremely improved.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of a kick skateboard according to the present invention.

FIG. 2 is an enlarged side view of a main part of the kick skateboard of FIG.

FIG. 3 is a longitudinal sectional view of FIG. 2;

FIG. 4 is a sectional view taken along line AA of FIG. 2;

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 body board 2 handle shaft 3 connecting member 6 rear wheel 8 handle 10 front wheel 11 bearing portion 12 bearing plate 14 fulcrum shaft 15 guide holes 16a, 16b fixing hole 17 vertically long hole 18 bush 20 tightening shaft 22 tightening lever 24 cap nut 25 spring 26 Fixing release lever 28 Window hole 29 Tip

Claims (1)

[Claims] 1. A body board having a rear wheel rotatably provided at a rear portion, a handle shaft having a front wheel rotatably provided at a lower end, and the handle shaft rotatable by a bearing portion provided at a tip end. A pair of bearing plates are fixed to the front upper surface of the vehicle body board in an upright manner, and the connecting members can be folded on a fulcrum shaft that is suspended between the bearing plates. And a guide hole having an arc shape centered on the fulcrum shaft is formed in each of the bearing plates, and fixed holes extending in the direction of the fulcrum shaft are formed at both ends of the guide hole. Is inserted through the guide hole into vertically long holes formed on both side surfaces of the connecting member. At the protruding end of the tightening shaft, retaining means such as a cap nut is provided. Axial biasing, and a tip extends below the tightening shaft into the connecting member A fixing release lever is pivotally supported, and the fixing release lever is projected rearward from a window hole formed in a rear side surface of the connecting member. By operating the fixing release lever, the tightening shaft is opposed to the elasticity of the spring. A foldable kick skateboard characterized in that the kick skateboard can be detached from the fixing hole into the guide hole.