JP3036636U - Wheeled traveling board - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a traveling plate with wheels that can travel smoothly not only on a flat road surface but also on a road surface with many irregularities at low cost. [Structure] A pair of a bow-shaped spacer, a tread plate mounted near the center of the spacer, and a corner joint and a hub that are swingably connected by caster pins with a shock absorber fitted. The steering unit and four pneumatic tires whose air pressure can be adjusted are provided. The front portion of the spacer is one of the pair of steering units and its corner joint, and the rear portion of the spacer is the pair of steering units. The other of the units is respectively connected by its corner joint, and the four pneumatic tires are attached to the wheel shafts inserted in the hubs, respectively, and the pneumatic tires are always outside the tread. A traveling plate with wheels, which is exposed and attached.

Description

[Detailed description of the invention]

[0001]

[Industrial applications]

 INDUSTRIAL APPLICABILITY The present invention is a traveling plate with wheels suitable for traveling on rough roads with many irregularities, and can also be used on gravel roads and mountain roads.

[0002]

[Prior art]

 Conventionally, a running plate with wheels called a skateboard has been known, but this is because a wheel is attached to the back of a relatively large tread, so it runs smoothly on a flat road surface such as a paved road. It is possible to do so, but on gravel roads and rough roads with a lot of unevenness, it was extremely difficult to run smoothly because the back surface of the tread or the part where the business trip was made collided with stones and unevenness of the road surface. Most conventional skateboards do not use inflatable wheels, so it is impossible to adjust the air pressure according to the road surface.

[0003]

[Problems to be solved by the device]

 INDUSTRIAL APPLICABILITY The present invention can be applied not only to a flat road surface such as a paved road but also to a rough road such as a gravel road, which has many concaves and convexes, and a straight road surface even if the road surface has many bends. In particular, it is to provide a traveling plate with wheels that can travel smoothly and can provide traveling performance according to various conditions such as traveling conditions and weather at low cost.

[0004]

[Means for Solving the Problems]

 In order to solve the above problems, the present invention proposes a traveling plate with wheels having the following structure. That is, the present invention is particularly suitable for running on a badly curved road, and a caster with a spacer formed in an arc shape, a tread plate mounted near the center of the spacer, and a shock absorber is fitted. The main structure consists of a pair of steering units consisting of a corner joint and a hub swingably connected by pins, and four pneumatic tires with adjustable air pressure. The front part of the spacer is One of the pair of steering units and its corner joint is connected, and the rear part of the spacer is connected to the other of the pair of steering units and its corner joint, respectively, and the four pneumatic tires are connected to the hub. The wheel tire is characterized in that it is attached to a wheel shaft that is inserted through each of them, and that the pneumatic tire is always exposed to the outside of the tread. To propose a running plate. In addition, in the present invention, a state in which a spacer formed in an arc shape, a tread plate mounted in the vicinity of the center of the spacer, and a shock absorbing tool are fitted, is suitable for traveling on a relatively straight rough road. The main structure is a steering unit consisting of a corner joint and a hub that are swingably connected by caster pins, and four pneumatic tires whose air pressure can be adjusted. Either the front part or the rear part of the spacer can be used. One of them is connected by a corner joint of the steering unit, two of the four pneumatic tires are on a wheel shaft inserted into the hub, and the remaining two pneumatic tires are on the front part of the spacer or The air tires are attached to the wheel shafts attached to either of the rear parts, respectively, and the air tires are always exposed to the outside of the tread plate. It proposes a wheeled running plate characterized by a point.

[0005]

【Example】

 1 is an exploded perspective view showing an embodiment of the present invention when a pair of steering units is used, FIG. 2 is a partially sectional front view showing the structure of the steering unit according to the present invention, and FIG. 3 is a steering unit. It is a perspective view which shows the Example of this invention when one is used. 1 is a tread, 2 is a spacer, 3 and 3'is a steering unit, 4 is a corner joint, 5 is a hub, 6 is a caster pin, 7 is a wheel shaft, 8 is a pneumatic tire, 9 is a mounting portion, 10 is Cushioning tool, 11 is a locking tool, 12 is a locking piece, and 13 is a receiving tool.

The traveling plate with wheels according to the present invention will be described below with reference to the drawings. First, FIG. 1 shows an embodiment of the present invention in which a pair of steering units are used, and is particularly suitable for running on a curved road surface. 1 is a tread for people to ride on while traveling, and we plan to use resin, fiberglass, or plywood from the viewpoint of strength, but it is also possible to use plastic, steel, aluminum, etc. The tread 1 is removable and can be replaced with one having a desired shape and design.

Reference numeral 2 is a spacer for bridging the front wheel and the rear wheel, and is formed in an arc shape so that the center of gravity near the center where the tread 1 is mounted is lowered in order to increase stability during traveling. It Two frames are used as the spacer 2 in the figure, but it is also possible to use one frame or a plate shape. Although the material is not limited, it is preferable to use steel or aluminum in terms of strength and stability. A mounting portion 9 for mounting the tread 1 is provided at the lowest center of gravity of the spacer 2 near its center. As described above, the tread 1 and the spacer 2 can be attached and detached, and can be replaced with one having a desired shape and design.

Reference numerals 3 and 3 ′ are steering units, which are composed of a corner joint 4 and a hub 5, which are swingably connected by caster pins 6 in a state in which a shock absorber 10 is fitted. In the embodiment of FIG. 1, a pair of steering units 3 and 3'is used, one steering unit 3 being the front part of the spacer 2 and its corner joint 4 and the other steering unit 3 ' The rear portion of the spacer 2 and its corner joint 4 are connected to each other. The shock absorber 10 employs a pair of springs in the embodiment of FIG. 1, but it is also possible to use a leaf spring or a hydraulic or pneumatic suspension. The shock absorber 10 made of a spring is fitted between the corner joint 4 and the hub 5 and, as shown in FIG. 1, has a locking member made of urethane or the like for making the attachment stronger. A locking piece 12 is formed on the corner joint 4 and a part of the hub 5 to which the tool 11 is attached and which can be engaged with a groove (not shown) formed therein. The corner joint 4 and the hub 5 are preferably made of steel or aluminum in terms of strength, but are not limited to this. The corner joint 4 and the hub 5 can be removed by attaching and detaching the caster pins 6, and can be replaced with one having a desired caster angle. Further, the shock absorber 10 can also be attached and detached, and can be replaced with a shock absorber having a desired shock absorbing power depending on the road surface on which the vehicle travels.

Reference numeral 8 denotes an air tire, which is attached to both ends of a wheel shaft 7 inserted through the hub 5. The pneumatic tire 8 can adjust the air pressure, and can increase or decrease the grip force and the straightness (speed) depending on the road surface on which the vehicle travels. Further, since the wheel shaft 7 and the pneumatic tire 8 can be attached and detached, a tire suitable for various conditions such as a slick tire or a rain tire can be selected.

Thus, in the traveling plate with wheels configured as shown in FIG. 1, since the pneumatic tire 8 is always exposed and attached to the outside of the tread plate 1, the tread plate 1 is affected by stones and unevenness on the road surface. Stable driving is possible without Further, since the steering unit 3 or 3'is provided on both the front and the rear of the spacer 2, it is excellent in maneuverability and is suitable for traveling on a badly curved road.

Next, FIG. 3 shows an embodiment of the present invention using one steering unit, which is suitable for traveling on a relatively straight rough road. The present invention is different from the embodiment shown in FIG. 1 in that the steering unit 3 is mounted only on either the front part or the rear part of the spacer 2, and two of the four pneumatic tires 8 are hubs. It is attached to the wheel shaft 7 that is inserted into the spacer 5, and the remaining two are only attached to the wheel shaft 7 provided at either the front part or the rear part of the spacer 2, and other than that. The configuration is the same as that of the embodiment shown in FIG. In FIG. 3, the wheel shaft 7 and the rear portion of the spacer 2 are connected by a receiver 13.

Thus, since the pneumatic tire 8 is always exposed to the outside of the tread plate 1, the traveling plate with wheels configured as shown in FIG. 3 is stable without being affected by the unevenness of the road surface as described above. In addition to being able to drive, the steering unit 3 is equipped only on either the front part or the rear part of the spacer 2, so it is suitable for running on relatively straight rough roads.

[0013]

[Effect of the invention]

 As described above, since the running plate with wheels according to the present invention has an arcuate shape in order to lower the center of gravity of the tread plate 1 mounted on the spacer 2, the running stability is significantly improved. Further, since the pneumatic tire 8 is always exposed and attached to the outside of the tread 1 and the pneumatic tire 8 overcomes the unevenness of the road surface first, the tread 1 may be affected by the stones and unevenness of the road surface. Absent. Further, since the air-injection type air tires 8 are used for the wheels, the desired grip force and straightness can be provided according to the running conditions by increasing or decreasing the air pressure. Furthermore, by equipping the steering units 3 and 3 ′ equipped with the shock absorber 10, this functions as a shock absorber and absorbs the impact due to the unevenness of the road surface, so that it is stable even on a road surface with continuous unevenness. It is possible to drive. In addition, depending on the road surface condition on which the vehicle is traveling, select whether the steering unit is a wheeled traveling plate that uses a pair of front and rear steering wheels or a wheeled traveling plate that is used only on one of the front and rear sides. You can In addition, since the tread 1 and the spacer 2, the corner joint 4 and the hub 5 and the shock absorber 10, and the wheel shaft 7 and the pneumatic tire 8 can be respectively attached and detached, various conditions such as road surface conditions and weather conditions to be traveled can be obtained. Depending on the requirement, it can be replaced with a desired part.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing an embodiment of the present invention when a pair of steering units is used.

FIG. 2 is a partially sectional front view showing the structure of a steering unit according to the present invention.

FIG. 3 is a perspective view showing an embodiment of the present invention when one steering unit is used.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Stepping plate 2 Spacer 3 Steering unit 3'Steering unit 4 Corner joint 5 Hub 6 Castor pin 7 Wheel shaft 8 Air tire 9 Mounting part 10 Cushion 11 Locking tool 12 Locking piece 13 Receiving tool

Claims (2)

[Utility model registration claims] 1. An arc-shaped spacer, a tread mounted near the center of the spacer, a corner joint pivotally connected by a caster pin with a shock absorber fitted thereto, and a hub. A pair of steering units,
It consists of 4 pneumatic tires with adjustable air pressure,
A front portion of the spacer is connected to one of the pair of steering units and a corner joint thereof, and a rear portion of the spacer is connected to the other of the pair of steering units and a corner joint thereof, respectively, and the four pneumatic tires. Is attached to a wheel shaft that is inserted through each of the hubs, and the pneumatic tire is always exposed and attached to the outside of the tread plate. 2. A spacer formed in an arc shape, a tread plate mounted near the center of the spacer, a corner joint pivotally connected by a caster pin in a state where a shock absorber is fitted, and a hub. The steering unit and four pneumatic tires whose air pressure can be adjusted are provided. Either one of the front portion and the rear portion of the spacer is connected by a corner joint of the steering unit, and the four pneumatic tires are connected. Two of the tires are attached to the wheel shaft that is inserted through the hub, and the remaining two pneumatic tires are attached to the wheel shaft that is provided at either the front portion or the rear portion of the spacer, and The traveling board with wheels, wherein the pneumatic tire is always exposed and attached to the outside of the tread.