JP3170096U - Three wheel skateboard - Google Patents

Abstract

A three-wheeled skateboard capable of speeding up a direction change operation.
A three-wheel skateboard includes a receiving plate, a rear wheel set provided on a rear bottom surface of the receiving plate, and a front wheel set provided on a front bottom surface of the receiving plate. The axis of the shaft portion 330 of the bracket 33 that supports the front wheel body 30 included in the front wheel set 3 is installed obliquely rearward, and the contact point between the front wheel body 30 and the ground moves to the rear portion of the bracket 33, The axis is not on the extension axis of the shaft 330 as well. Therefore, when the user slides while standing at the front part of the receiving plate 1, the downward pressure is not applied directly to the shaft part 330 but is completely applied to the pivot shaft 334 of the front wheel body 30 and is rotated with respect to the base 31. By combining the possible brackets 33, mobility is improved, and when the user performs a direction change operation, it can be performed easily and speedily.
[Selection] Figure 2

Description

  The present invention relates to the technical field of skateboarding.

  As shown in FIG. 5, most of the general skateboard structures include a receiving plate 4, and a rear wheel set 5 and a front wheel set 6 are provided on the rear side and the front side of the bottom surface of the receiving plate 4, respectively. The wheel set 5 and the front wheel set 6 are vertically extended downward, and the rear wheel body 50 and the front wheel body 60 are pivotally connected to each other via the rear base 51 and the front base 61 to constitute a support and moving structure of the skateboard. Yes.

  In general, when performing a direction change operation with a skateboard, the user applies weight to the left or right side of the front part of the receiving plate 4 to increase the radians of the inclination of the vehicle body, thereby generating a rotational centripetal force. However, in the above-described structure, the rear base 51 and the front base 61 are vertically provided on the bottom surface of the receiving plate 4, so that when the user stands on the receiving plate 4 and slides, the downward pressure is applied to the rear base 51, Directly applied to the front base 61 and further acts on the pivot parts of the rear wheel body 50 and the front wheel body 60, so that when the skateboard goes straight, the traveling locus direction of the front wheel body 60 and the rear wheel body 50 can be easily changed. Therefore, a speedy and skillful direction change operation cannot be performed.

  The main purpose of the present invention is to provide a kind of three-wheel skateboard, which is improved in mobility and rigidity, and can be easily and speedily skillfully performed when the user performs a turning operation.

  Another object of the present invention is to provide a kind of three-wheel skateboard, which increases the wear resistance of the base, thereby extending the service life.

  The three-wheel skateboard of the present invention includes a receiving plate, a rear wheel set provided on the bottom bottom surface of the receiving plate, and a front wheel set provided on the bottom bottom surface of the receiving plate.

The feature is that the aforementioned front wheel set includes the following.
That is, the base, which is fixed to the bottom surface of the receiving plate, is provided with an inclined joining surface on the bottom surface of the base, a through hole is provided on the joining surface, and a fixing screw is passed through the through hole. An anti-friction piece provided on a joint surface of the base and provided with a screw hole concentrically with the through-hole, and concentric with the through-hole on a surface facing the joint surface of the anti-friction piece. The anti-friction piece provided with a projecting portion having a relationship, and a bracket, comprising a shaft portion opposed to the anti-friction piece, and two ear portions extending obliquely from the bottom end of the shaft portion. The bracket having a body pivoted and having a bearing provided at the center of the shaft portion, and a pivot bolt, which is threaded into the fixing screw through a screw hole provided at the end through the bearing. This allows the bracket and the base to be firmly and united together That includes the above-described pivotally connected bolt, a.

  With the above-described design, the axis of the shaft portion of the bracket is installed obliquely rearward, and the contact point between the front wheel body and the ground is moved to the rear portion of the bracket, and its pivot axis is on the extension axis of the shaft portion. Absent. Therefore, when the user slides standing on the front part of the receiving plate, the downward pressure is not applied directly to the shaft part, but is completely applied to the pivot shaft of the front wheel body. As a result, the mobility of the present invention is improved, and when the user performs a direction change operation, it can be performed quickly and skillfully. Also, when the anti-friction piece is disposed between the bracket and the base, and the bracket acts on the base, the base and the bracket are not rigid enough to occur during the operation of the base due to the plastic material. And the wear resistance of the base is increased on the anti-friction piece, and its service life is extended.

FIG. 3 is a perspective view of a preferred embodiment of the present invention. 1 is an assembly display diagram of a preferred embodiment of the present invention. 1 is a side view of a preferred embodiment of the present invention. 1 is a perspective view of a preferred embodiment of the present invention. It is a display figure of a well-known technique.

  In order to describe in detail the technical contents, structural features, and objects to be achieved of the present invention, examples will be described below in combination with the drawings.

Please refer to FIG. 1 to FIG.
The three-wheel skateboard of the present invention is a rear wheel in which a receiving plate 1 provided for a user to step on and is fixed to the rear bottom surface of the receiving plate 1 with screws, and rear wheel bodies 20 are pivoted on both sides. It includes a set 2 and a front wheel set 3 that is fixed to the front bottom surface of the receiving plate 1 with screws and in which one front wheel body 30 is pivoted.

  The features of the present invention are as follows. That is, the front wheel set 3 described above is a base 31, which is fixed to the bottom surface of the receiving plate 1, and is provided with an inclined joint surface 310 on the bottom surface of the base 31. The joint surface 310 is provided with a through hole 311 extending through the base 31 and penetrating the base 31, a fixing screw 312 is passed through the through hole 311, and a reverse screw thread is provided on the outer periphery of the end of the fixing screw 312. The base 31 and the anti-friction piece 32, which are formed of a wear-resistant metal material, and the anti-friction piece 32 corresponds to the bottom shape of the base 31, The friction prevention piece 32 is provided with a screw hole 321 and corresponds to the through hole 311 of the joint surface 310 of the base 31 in a concentric relationship, and of these, the joint surface of the friction prevention piece 32 On one side of 310 A convex portion 322 is provided, and the convex portion 322 is connected to the friction preventing piece 32 and the bracket 33, which are fitted into the through hole 311 of the base 31, and the bracket 33, and the joining surface 310 of the base 31. The bracket 33 includes a shaft portion 330 that abuts against the friction preventing piece 32, and two corresponding ear portions 331 extending obliquely at a predetermined angle are provided at the bottom end of the shaft portion 330. A pivot shaft 334 is inserted between the two shafts. The pivot shaft 334 is used to pivot the front wheel body 30 described above. The insertion hole corresponding to the center of the shaft portion 330 is concentric with the screw hole 321. 332 is opened, the bearing 333 is accommodated in the insertion hole 332, the washer 35 is placed between the bearing 333 and the friction prevention piece 32, and is used for the interaction between the bearing 333 and the friction prevention piece 32. The thickness of the shaft 35 is the bracket 33 and the pivot bolt 34 that form a gap in the bracket 33 and the friction preventing piece 32 to prevent the mutual friction from affecting the smoothness of the rotation of the front wheel set 3. From the bottom to the top, it passes through the center of the bearing 333 and is screwed with the fixing screw 312 through the base 31, and an inward screw hole 340 is formed in the axial center portion of the end of the pivot bolt 34. A reverse screw thread is formed on the inner side of the screw hole 340 to be screwed with the fixing screw 312, and is screwed onto the outer periphery of the end of the pivot bolt 34 in correspondence with the screw hole 321 of the friction preventing piece 32. Including the above-mentioned pivot bolt 34 on which a screw thread 341 is installed.

  At the time of assembly, the base 31 is fixed to the front bottom surface of the receiving plate 1, and the friction preventing piece 32 is attached to the bottom surface of the base 31 and the joining surface 310, and the convex portion 322 of the friction preventing piece 32 is in the through hole 311. Is housed in. Further, a bracket 33 on which the front wheel body 30 is pivotally provided is provided on the friction preventing piece 32 corresponding to the joint surface 310 of the base 31, and further, a pivot bolt 34 is passed through the bearing 333 and the base 31, and further the friction preventing piece. The 32 screw holes 321 and the fixing screw 312 are screwed to each other, and the bracket 33 is rotated to the left and right with respect to the base 31 and the friction preventing piece 32. Thus, the embodiment is configured. Among them, the shaft portion 330 of the front wheel set 3 abuts between the portions corresponding to the inclined joint surface 310 of the base 31 of the friction preventing piece 32 and is separated by the washer 35, and the axis thereof is between the receiving plate 1 and the ground. It is installed diagonally backwards in comparison.

The above are the structural features of each part of the preferred embodiment of the present invention. Next, we will introduce the characteristics of use and the effects of production.
one. The axis of the shaft portion 330 of the bracket 33 is installed obliquely rearward, and the contact point between the front wheel body 30 and the ground moves to the rear portion of the bracket 33, and the pivot axis is not on the extending axis of the shaft portion 330. Therefore, when the user slides while standing at the front part of the receiving plate 1, the downward pressure is not applied directly to the shaft part 330 but is completely applied to the pivot shaft 334 of the front wheel body 30 and is rotated with respect to the base 31. By combining the possible brackets 33, the mobility of the present invention is improved, and when the user performs a direction change operation, it can be performed easily and speedily.
two. In response to the first item, in order to achieve the effect that the present invention can speedily and flexibly change the direction, the friction preventing piece 32 is further disposed between the bracket 33 and the base 31, and the bracket 33 acts on the base 31. When the base 3 directly acts on the bracket 33, the problem of insufficient rigidity caused by the base 31 being a plastic material can be improved, thereby extending the service life.

  The above description is only an example of the present invention, and does not limit the scope of the present invention. Any equivalent changes and modifications that can be made based on the scope of the claims of the present invention are all described in the present invention. Shall belong to the scope covered by the rights.

1 receiving plate 2 rear wheel set 20 rear wheel body 3 front wheel set 30 front wheel body 31 base 310 joint surface 311 through hole 312 fixing screw 32 friction prevention piece 321 screw hole 322 convex portion 33 bracket 330 shaft portion 331 ear portion 332 insertion hole 333 Bearing 334 Pivoting shaft 34 Pivoting bolt 340 Screw hole 341 Forward thread 35 Washer 4 Back plate 5 Rear wheel set 50 Rear wheel body 51 Rear base 6 Front wheel set 60 Front wheel body 61 Front base

Claims (5)

  A receiving wheel, a rear wheel set provided on the rear bottom surface of the receiving plate and pivoted on both sides, and a front wheel set provided on the front bottom surface of the receiving plate and provided with a single front wheel body In the three-wheel skateboard including the above-mentioned front wheel set, which is a base, is formed of a plastic material and is fixed to the bottom surface of the receiving plate, and an inclined joining surface is provided on the bottom surface of the base. The base is provided with a through hole extending through the base, and a fixing screw is passed through the through hole, and a friction prevention piece, which is formed of a metal material, and is formed on the base bottom surface and the joint surface. Provided, a convex portion is provided on the friction preventing piece, the convex portion is accommodated in the through hole of the base, and a screw hole concentric with the through hole is provided at the axial center of the convex portion, The anti-friction piece and the bracket, opposite to the anti-friction piece An insertion hole that is concentric with the screw hole of the anti-friction piece at the center of the shaft portion. The bracket provided with a bearing in the insertion hole, and a pivot bolt, which is passed through the center of the bearing and screwed into the fixing screw, and is screwed into the end of the pivot bolt. A three-wheeled skateboard comprising the above-described pivot bolt provided with a hole.   The three-wheel skateboard according to claim 1, wherein a convex portion corresponding to the through hole is provided concentrically on one side of the friction preventing piece facing the joint surface, and a forward thread is provided in an axial direction of the convex portion. The three-wheel skateboard is characterized in that the convex portion is accommodated in the through-hole and the structural strength of the through-hole is increased.   3. The three-wheel skateboard according to claim 2, wherein a forward thread that is screwed into a screw hole of the convex portion is provided on an outer periphery of an end portion of the pivot bolt.   The three-wheel skateboard according to claim 1, wherein a reverse screw thread is provided on an outer periphery of an end of the fixing screw, and a reverse screw thread that is screwed with the fixing screw is provided on an inner periphery of the screw hole of the pivot bolt. A three-wheeled skateboard characterized by that.   The three-wheel skateboard according to claim 1, wherein a washer is provided between the shaft portion of the bracket and the friction prevention piece, abuts against the bearing and the friction prevention piece, and between the bracket and the friction prevention piece. A three-wheeled skateboard characterized in that a gap is formed to smoothly rotate the bracket.

Images