JP2009512492A - Skateboard truck - Google Patents

Abstract

【Task】
A skateboard track is formed into a plate-like member, and both left and right ends are bent downward to form a center arm, and the shaft to which the wheel is connected is restrained by the center arm, thereby absorbing high shock. To provide a skateboard track that has excellent jumping power while maintaining power, and excellent performance in adjusting the direction.
[Solution]
In the structure of a skateboard track, a protruding coupling part having a through hole on one side of the central part and a shaft having a protruding support part on the other side is coupled to both ends. In the skateboard track, a plate-like member, which is fastened by the connector and the connector at one end of the center arm that is bent from the center of the left and right ends, and is connected to the other end. Is provided with a pocket which is recessed so that the support portion is inserted, and an elastic body is connected to the pocket.
[Selection] Figure 4

Description

The present invention relates to a skateboard truck attached to a skateboard, and more particularly, a shaft coupled with a wheel is coupled to a center arm formed by bending a plate-like member, thereby absorbing shock and jumping force. Relates to an improved skateboard truck.

In general, the skateboard currently used is a leisure article invented so that a user can get on the ground by connecting a track having a wheel to the lower part of the board board. Development is ongoing to provide skateboards with better performance and new features, especially skateboard trucks.

Hereinafter, the skateboard truck according to the prior art will be described in detail. FIG. 1 is a schematic perspective view of the skateboard truck according to the prior art. The prior art is started as a prior art in the following Patent Document 1, and when viewed from this configuration, the bottom plate is a base plate 30, a large bolt in the middle is a king pin 31, a nut is a king pin nut 34, and an upper portion is an axle housing 32. And Further, urethane rubber 33, which is an elastic material, is inserted between the base plate 30 and the axle housing 32, and a portion where the wheel is sandwiched is an axle 35. Are assembled. The skateboard truck having such a structure has a problem in that since the axle housing 32 is directly connected to the base plate 30, the shock can be absorbed only by the urethane rubber 33, so that the shock absorbing power is low and there is no jumping power.

Further, as another prior art, a skateboard truck disclosed in Patent Document 2 below is known, FIG. 2 is a perspective view thereof, and FIG. 3 is a side view of the same.

In the skateboard track having this configuration, an inner recess defining a beam 21 integrally formed with the track at one end and an axle hub 23 integrally at the other end, a circular flange 2212 and an opening. A boss 22 extending downward and integrally formed in the center with the track 221, a substantially hemispherical elastomer 3 member having an annular groove 31 at the top and a blind hole at the center of the top; The axle hub 23 relates to a skateboard truck characterized in that it is formed integrally with a circular bracket 24 at the top.

As shown in the figure, in the case of the prior art having the beam 21, the elastomer 3 can absorb the impact while being in direct contact with the circular bracket 24 formed on the beam 21, but the elasticity of the beam 21 is sufficient. However, since the wheel is connected to the hub 23 coupled to the beam 21, there is also a problem that the direction cannot be freely changed. In the above technique, it is necessary to fix the axle hub 23 to the end of the beam 21, but it must be welded for fixing, and the welded joint is damaged by a fatigue phenomenon due to continuous use. It is likely and has many problems for practical applications.
Korean Patent Application No. 2001-0064136 Korean Utility Model Application No. 1992-0000477

The present invention is to solve such a conventional problem, and an object of the present invention is to form a center arm by forming a skateboard track into a plate-like member and bending both left and right ends downward. By constraining the shaft connected to the center arm, a skateboard truck having excellent jumping force while maintaining high shock absorption and excellent performance in adjusting the direction is provided.

In addition, an object of the present invention is to provide a skateboard truck having further superior shock absorbing power and jumping power by installing left and right arms with a center arm in between.

In order to achieve the above object, in the configuration of the skateboard truck according to the present invention, a protruding coupling portion having a wheel coupled to both ends and a through hole on one side of the central portion is provided on the other side. In a skateboard track to which a shaft provided with a protruding support portion is coupled, a plate-like member, and the center arm that is bent so as to face each other from the center of both left and right ends, the end at one end A pocket which is fastened by a coupling portion and a connector and is recessed so that the support portion is inserted is provided at the other end portion, and it is specified that an elastic body is coupled to the pocket.

Preferably, it is specified that the center arm is configured to shrink toward the inside.

Preferably, the center arm is specified to be bent with a structure in which left and right ends are integrally connected.

Preferably, the connector includes a washer-integrated bolt in which the upper portion of the head portion has a gentle spherical surface, a wrench groove at the center thereof, and a lower end of the head portion formed with a fixed jaw, and the shaft. It is characterized by comprising a buffer rubber disposed above and below the coupling part and a nut fastened to a threaded part of a washer-integrated bolt penetrating the center arm.

According to the skateboard truck of the present invention, there is an effect that it is possible to provide an excellent shock absorbing function and a jump force that cannot be achieved by the prior art, and the characteristic that the direction can be freely changed is also maintained. It is also possible to provide a track suitable for the weight of the user by changing the material of the plate member constituting the track, the thickness of the plate, and the like.

Hereinafter, a skateboard truck according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 4 is a perspective view showing a usage state of the skateboard truck according to the first embodiment of the present invention, and FIG. 5 is a perspective view of the skateboard truck according to the first embodiment of the present invention.

As shown in FIGS. 4 and 5, the skateboard truck according to the first embodiment of the present invention is installed on the lower surface of the skateboard 100, and the shaft 300 to which the wheel 310 is coupled is coupled to the track 200. It is formed.

First, the shaft 300 has wheels 310 installed at both ends thereof, a protruding coupling part 320 having a through hole on one side of the central part of the shaft 300, and a protruding support part 330 on the other side. It is done.

The track 200 to which the shaft 300 is coupled is a plate-like member 210, and two center arms 230 are formed so as to face the centers of both left and right ends thereof. In the center arm 230, the coupling part 320 and the connector 400 are fastened at one end, and the center arm 230 at the other end is provided with a pocket 232 into which the support part 330 is inserted. The pocket 232 has a concave shape. Preferably, the pocket 232 is provided with an elastic body 234 such as urethane packing, and the end portion of the support portion 330 is inserted therein. The wheel 310 can always maintain a fixed position by the support part 330 inserted into the pocket 232, and when the direction is changed, the support part 330 is moved to some extent in the pocket 232, so that the direction change is easy. is there.

Therefore, the skateboard track 200 according to the first embodiment of the present invention is provided with the center arm 230 so that the left and right ends of the plate-like member 210 face each other as shown in FIG. Bend times and tilt slightly downwards. The two center arms 230 are separated from the plate-like member 210 that is directly fastened to the skateboard 100. On the other hand, the bending of the center arm 230 can be changed to have various angles according to need. This can be easily conceived by any person skilled in the art. Changes in the angle do not depart from the scope of the technical idea of the present invention.

A through hole 322 is formed in the protruding coupling portion 320 provided on one side of the shaft 300, and a hole 236 is also formed in one center arm 230 constrained to the coupling portion 320. Therefore, the connector 320 and the center arm 230 are fastened using the connector 400. Here, the connector 400 may use a known general bolt, nut, and elastic member such as urethane rubber, and more preferably, the connector 400 having a coupling structure as shown in FIGS. You can also.

That is, the connector 400 includes a washer-integrated bolt 410, a buffer rubber 420, and a nut 430. The washer-integrated bolt 41O has a gentle spherical surface at the top of the head portion 412. A fixed jaw 416 is formed at the lower surface end of the groove 414 and the head portion 41 2. The buffer rubber 420 is disposed above and below the coupling portion 320 into which the washer integrated bolt 41 O is inserted, and the nut 430 is fastened to the screw portion 418 of the washer integrated bolt 410 that penetrates the center arm 230.

In the case of the connector 400 according to the present invention, since the wrench groove 414 that is recessed is formed at the center of the head portion 412 of the washer-integrated bolt 410, it is possible to prevent damage to the wrench groove 414 due to wear. And the fixed jaw 416 is formed on the lower surface end of the head portion 412 of the washer-integrated bolt 410, so that the buffer rubber 420 placed under the fixed jaw 416 is firmly formed.

Next, a second embodiment of the present invention will be described.
FIG. 8 is a perspective view of a skateboard truck according to a second embodiment of the present invention. As shown in FIG. 8, the track 200 according to the second embodiment of the present invention has a structure in which center arms 230 that are bent so as to face both left and right ends of the plate-like member 210 are integrally connected. It is a feature. That is, although the center arm 230 in which the pocket 232 is formed is connected, the durability is increased and the impact transmitted to the shaft 300 through the wheel 310 can be more firmly supported.

On the other hand, in the first and second embodiments mentioned above, the plate-shaped reinforcing plate 250 can be installed inside the center arm 230, so that it can withstand a larger load.

Hereinafter, the operation principle of the skateboard truck according to the present invention will be schematically described. Unlike the prior art, the skateboard truck of the present invention is bent by bending a plate-like member 210 such as a plate spring. The gist is to connect the shaft 300 to which the wheel 310 is attached to the end portion so that the jump force can be improved while having an excellent shock absorbing function.

Although various embodiments have been described, the present invention basically has a plate-like member 210 having an elastic force like a plate spring, and impacts the shaft 300 through a wheel 310 that is in contact with the ground and performs a rolling motion. Then, the force is distributed by the connected center arm 230 and the impact is alleviated at the same time.

As described above, the present invention can be variously replaced, modified, and changed by those having ordinary knowledge in the technical field to which the present invention belongs without departing from the technical idea of the present invention. The present invention is not limited to the attached drawings.

The skateboard truck according to the present invention improves shock absorption and jump force by coupling a shaft coupled with a wheel attached to a skateboard to a center arm formed by bending a plate-like member. The structure of the truck according to the present invention can be applied not only to skateboards but also to various vehicles using wheels, so that it is an excellent technology for revitalizing the leisure industry.

It is a schematic perspective view of the track for skateboards concerning a prior art. It is a perspective view of the track for skateboards based on another prior art. FIG. 3 is a side view of FIG. 2. It is the perspective view which showed the use condition of the track for skateboards concerning 1st Example of this invention. 1 is a perspective view of a skateboard truck according to a first embodiment of the present invention. It is sectional drawing of a washer integrated bolt. It is sectional drawing which shows the connection structure of a connector. It is a perspective view of the track for skateboards concerning the 2nd example of the present invention.

Explanation of symbols

100 Skateboard 200 Skateboard Track 210 Elastic Member 230 Center Arm 232 Pocket 234 Elastic Body 236 Hole 240 Reinforcement Plate 300 Shaft 310 Wheel 320 Coupling Portion 322 Through Hole 330 Support Portion 400 Connector 410 Washer Integrated Bolt 412 Head Portion 414 Wrench Groove 416 Fixed jaw 418 Threaded part 420 Buffer rubber 430 Nut

Claims (4)

Wheels (310) are coupled to both ends, a shaft having a protruding coupling part (320) having a through hole on one side of the central part and a protruding support part (330) on the other side ( 300) is a plate-like member, and is joined at one end of the center arm (230) that is bent so as to face the center of both left and right ends. The other end is provided with a pocket (232) that is recessed so that the support (330) is inserted, and an elastic body (234) is coupled to the pocket. This is a skateboard truck. The skateboard truck according to claim 1, wherein the center arm (230) is configured to shrink toward the inside. The skateboard truck according to claim 1 or 2, wherein the center arm (230) is bent with a structure in which left and right ends are integrally connected. The connector (400) has a gentle spherical surface at the top of the head (k), a wrench groove (r) at the center thereof, and a washer with a fixed jaw (s) at the lower end of the head. An integral bolt (410); a buffer rubber (420) disposed above and below a coupling portion (320) provided on the shaft; and a nut (430) fastened to a thread portion of a washer integral bolt penetrating the center arm. The skateboard truck according to claim 1, comprising:

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