CN1700943A - Skateboard with direction-caster - Google Patents

Abstract

Disclosed herein is a skateboard having a front board, a rear board and a connecting element which interconnects the front board and the rear board in a spaced relationship, wherein at least one of the front board and the rear board has one or more than one direction-caster which is mounted on the underside of the plate of the boards. The connecting element has elastic matter in it so that it can be elastically twisted or bent when it receives twisting or bending force and can be restored to its original shape when the force is removed. With this skateboard, the rider can easily turn within a small turning radius, and driving force can be generated by the rider~s twisting motion without moving his/her feet.

Description

Skateboard with directional casters

technical field

The present invention relates to a skateboard, which is composed of front and rear separated boards and connecting pieces connecting these boards with two ends, each board is also equipped with directional casters as the wheels of the skateboard, so it is easy to rotate in a small radius, While running, the driver is also propelled by torque alone.

Background technique

As shown in Fig. 7a, a traditional skateboard is composed of an oblong flat plate 111 and two wheel sets 113, 123 respectively equipped with two rollers under the flat plate. With the traditional skateboard of this structure, the driver can use one foot to step on the ground to accelerate when running on flat ground. If it needs to rotate during running, the driver can use his feet to adjust the inclination of the left and right driving directions. In addition, as shown in FIG. 7 b , the traditional caster 130 is composed of a wheel bracket 134 , a roller frame 135 , and a roller 136 . This traditional caster 130 can also change the rolling direction of the roller 136 by a small force, so it is mainly used for the front wheel of the handcart.

Yet above-mentioned traditional skateboard just can't push the skateboard if there is no driver pedaling the ground when running, even if it can push the skateboard, it's just difficult to do if it's not an extremely skilled driver.

Another problem with conventional skateboards is that they cannot be tilted too much in a right or left turn because the board 111 comes into contact with the wheels in the wheel set when tilted beyond a certain angle. Therefore, the traditional skateboard can only be tilted to a small extent, so the skateboard cannot rotate under a small radius of rotation to change the direction of travel.

Contents of the invention

The object of the present invention is to provide a skateboard that can easily rotate in a small radius during the running process of the skateboard, and can obtain propulsion without stepping on the ground when running.

In order to achieve the above object, the present invention provides a skateboard with a front board, a rear board and a connecting piece that separates and firmly connects the two boards. The skateboard includes:

one or more directional castors mounted on the underside of the slab of at least one of the front and rear panels; and

The above connecting piece has an elastic body so that it can be twisted or bent elastically when it is subjected to torsion and bending force, and can return to its original shape when the force disappears.

Another feature of the present invention is that the above-mentioned front board may include one or more than one above-mentioned directional casters, and the rear board may include one or more than one fixed wheel sets.

The above-mentioned connecting piece may include a twisted tube, preferably an elastic body is installed inside the above-mentioned twisted tube.

The above-mentioned connecting piece is preferably composed of the above-mentioned torsion tube and two elastic bodies, wherein the two elastic bodies are on both sides of the above-mentioned torsion tube and parallel to the above-mentioned torsion tube, and the two ends of the two elastic bodies are respectively combined with the front and rear plates.

Under the same idea, the present invention provides a skating board (skating board) with a front plate and a rear plate in a separated state and a connecting piece that connects the two plates in a separated state. It is characterized in that, At least one of the front plate and the rear plate is provided with one or more directional caster blades, which are installed under the above-mentioned flat plate, and the above-mentioned connecting piece has an elastic body so that it can be elastically twisted or bent when twisted or bent and when The original shape when the force is canceled.

Description of drawings

The present invention will be further described below in conjunction with accompanying drawing.

Figure 1 is a perspective view of a slide provided by one of the embodiments of the present invention;

Fig. 2 is a side view of the component directional caster of Fig. 1;

Fig. 3a, 3b, 3c are plan views illustrating the method of rotation when the skateboard is running according to Fig. 1;

Fig. 3d is a plan view illustrating the propulsion generating mechanism when the skateboard is running according to Fig. 1;

Figure 4a is a cross-sectional view of a twisted tube of one of the embodiments of the connector in Figure 1;

Figure 4b is an oblique view of the installation of the leaf spring installed in the connector, that is, the inside of the twisted tube, in Figure 4a;

Figure 5a is a related schematic diagram of the second embodiment of the present invention;

Fig. 5b is a related schematic diagram of the third embodiment of the present invention.

Fig. 6 is a perspective view of a skateboard according to a fourth embodiment of the present invention.

Figures 7a and 7b are oblique views of traditional skateboards and side views of traditional casters.

Detailed ways

Several embodiments will be described in detail below to illustrate the present invention in detail. However, these examples are only for description, not to show that the structure of the present invention is limited to these kinds only.

As shown in FIG. 1 , the skateboard with directional castors of the present invention is composed of two boards respectively a front board 10 and a rear board 20 and a twisted tube 40 separately connecting the two boards 10 and 20 .

Boards 10, 20 are made up of flat boards 11, 21, directional castors 13, 23 installed under the flat boards, and fixing device 12 fixedly connected with twisted tube 40.

As shown in Figure 2, directional caster comprises the wheel support 34 that is contained on the flat plate, links to each other with the wheel support 34 by the rotating shaft and can carry out the roller frame 35 of relative rotation, and the roller 36 that is connected at the support free end part of roller frame 35. The above-mentioned wheel bracket 34 is wedge-shaped, so that the angle between the contact surface of the wheel bracket 34 and the above-mentioned flat panel 11 and the relative bonding surface of the wheel bracket 34 and the roller frame 35 is an acute angle θ.

As shown in Figure 3a, with the skateboard of this directional caster 13,23, when the driver tilts the front plate 10 to the right side of the driving direction, the roller frame 35 of the directional caster 13 of the front plate 10 will turn to its opposite direction left side , while the roller 36 rolls to the right, thereby forming a right rotation. On the contrary, as shown in Figure 3b, when the driver moves the pin on the rear board 20 to the right, the roller frame 25 of the fixed caster 23 of the rear board 20 then turns to its opposite direction left side, and the roller 26 rolls to the right, thereby When the rear plate 20 is rotated to the right, the whole will rotate to the left as a result. As shown in FIG. 3 c , on the basis of the above two situations, the front board 10 is biased to the right side of the driving direction, and the rear board 20 is biased to the left side, and a small-radius right rotation will be formed as a whole. During running, the front and rear plates 10, 20 are all deflected to one side, and the slide plate also translates to the corresponding direction.

Figure 3d illustrates the generation mechanism of the required propulsion force when the skateboard is running, that is, it shows the situation when the driver twists to the left. With the left torque of the driver, the front board 10 deflects in the +y direction, and the rear board 20 deflects in the -y direction. Therefore, the directional casters 13 and 23 turn through angles α and β relative to the driving direction, and the boards 10 and 20 A tilting force of corresponding magnitude is obtained. In addition, according to the wedge-shaped characteristics of the wheel brackets 34, 24 of the directional casters 13, 23, due to the twisting strength of the driver, tilting forces F1, F2 are generated in the rolling direction of the directional casters 13, 23, and the level of these forces F1, F2 The component forces F1Cosα and F2Cosβ play the role of pushing the slide plate forward. If the driver wants to get the propulsion of the skateboard while running, he needs to turn left and right on the boards 10 and 20 without pedaling the ground. Of course, as shown in Figure 3d, the vertical component forces F1Sinα and F2Sinβ of F1 and F2 here will play the role of moment M that generates rotational motion around the center of gravity of the skateboard.

As shown in Figure 4a, the twisted tube 40 includes a front tube 41, a rear tube 50, and a core tube 52, which is fixed on the rear tube 50 through a ball bearing 51, so the core tube 52 can rotate together with the rear tube 50, and mutually Not separate;, also comprise spring lock 53,54, and spring lock 53,54 is contained on the core pipe 52, makes front pipe 41 and core pipe 52 combine and rotate synchronously.

The leaf spring 55 is installed in the rear pipe 50, as shown in Figure 4b, one end of the leaf spring 55 is combined with the core pipe 52, and the other end is combined with the rear pipe 50 through a clamp 56, and the front pipe 41 is made to be opposite by the torsional force of the driver. After the rear tube 50 is rotated to achieve elastic deformation of the leaf spring, at this time, the leaf spring 55 provides a restoring force when the torsional force disappears. Because of said structure, this torsion tube 40 that is provided with leaf spring 55 in it can keep the driver in balance, and the slide plate provided by the present invention can be driven by the restorative force obtained by twisting the front and rear plates 10, 20 because of the driver's left and right. Turn and get driving while driving.

In addition, the two boards 10, 20 can be separated by pushing the bolt 54 of the spring lock 53, 54, so as to provide convenience for the driver to keep and carry the skateboard.

Have again, two or more than two directional casters 13,23 that are contained in the front and back plates 10,20 below of slide plate can be in line (in- line) or installed side by side horizontally, the radius of rotation at this time is somewhat enlarged, but its safety will be increased.

As shown in Figure 5a, the wheels on the front plate 10 are the aforementioned directional castors 13, and the wheels on the rear plate 20 can be one or more fixed wheel sets 61, and the rollers therein cannot be positioned relative to the axis of the roller frame. turn. The rotation at this time can only be realized by the front plate 10, because this structure is safe, so it can be used by small children.

As shown in Figure 5b, the torsion tube 40 connecting the two front and rear boards 10, 20 of the skateboard does not have leaf spring devices 55, 56, 57 inside, but elastic rubber is installed on both sides of the torsion tube 40 parallel to it. Elastomer 65 made of etc. Both ends of the two elastic bodies 65 are respectively connected to the front and rear panels 10 and 20 . The restoring force can be obtained by these elastic bodies 65 when the twisted tube 40 is twisted.

From above-mentioned skateboard, think of a kind of skating board of invention easily, as shown in Figure 6, make a kind of skating board (skating board), replace the component roller 36 of directional caster 13,23 in above-mentioned Fig. 1 with skating blade 76,86 , 26 form directional caster blade 73,83, be contained in below the flat plate 11,21 of the front and back plate 10,20 of slide plate, so that also can slide on ice or snow.

Claims (5)

1, a kind of have header board, back plate and with the slide plate of described header board and the back connector that connects firmly dividually of plate, it is characterized in that:

One or more direction-casters, it is installed in header board and back plate at least on one of them the dull and stereotyped bottom surface; And

Above-mentioned connector has elastomer, and it is subjected to torsion and bending force can flexibly twist or crooked with box lunch, and can recover original shape when this power disappears.

2, slide plate according to claim 1 is characterized in that: above-mentioned header board comprises one or more above-mentioned direction-caster, and back plate comprises one or more fixedly wheels.

3, slide plate according to claim 1 is characterized in that: above-mentioned connector comprises twisted tube, at above-mentioned twisted tube inside shooting property material.

4, slide plate according to claim 1, it is characterized in that: above-mentioned connector comprises above-mentioned twisted tube and two elastomers, wherein two elastomers and above-mentioned twisted tube are located at above-mentioned twisted tube both sides abreast, these two described elastomeric ends are connected with described header board, and their end in addition is connected with described back plate.

5, a kind of skateboard of the connector that has header board under the released state and back plate and two plates are connected firmly under the state that separates is characterized in that,

One or more direction-caster blades be contained in described header board and the back plate at least one of them upper flat plate below, and

Above-mentioned connector has an elastic material, so that its elastic torsion or bending and original shape when this power cancellation when described connector is twisted or be crooked.

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