JPH0248859Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to improvements to poles for practical practice of motorcycle driving, which are installed in driving schools to form a path for motorcycles during practical lessons. .

At a driving school, during a practical lesson on motorcycles, a large number of poles are set up in two rows at intervals that allow motorcycles to pass, and students are asked to drive their motorcycles through between the rows of poles. There is a subject to teach. The pole A used in this subject is the rubber cone 1 normally used for road construction, as shown in Figure 1.
It is constructed by connecting and supporting a pole main body 2 formed in a rod shape along a tree shape by a support 10, and these rubber cones 1 are placed in a predetermined place as shown in FIG. By arranging them in a row at appropriate intervals on the left and right sides so that the two-wheeled vehicle can pass through, it is used to form a passage B through which the driver drives the two-wheeled vehicle.

By the way, when a driver practices driving a two-wheeled vehicle through a passageway B formed by arranging two rows of poles A, the poles A used in this manner are used because of immature driving skills. When they come into contact with each other, they may be pushed down or moved out of position, which requires the faculty to correct each time. For this reason, attempts have been made to support the pole main body 2 on a base 4 in a flexible and rotatable manner using a spring 3, like a flagpole used in a ski competition, as shown in FIG. , when the driver's body or vehicle body comes into contact with each other and starts to be pushed out of the aisle, the spring 3
As the poles have been restored, they have become entangled with the driver's body and the body of the car, causing not only severe damage to the poles themselves, but also the problem of damaging the body of the car and the driver.

The present invention was developed to solve these problems that have arisen with the conventional methods.When practicing practical skills, the driver's body and vehicle body come into contact with each other, causing the driver to move toward the outside of the passageway. The purpose is to provide a new method that will allow the vehicle to escape easily and automatically and slowly return to its original position when the vehicle passes through it.

In the present invention, as a means to achieve this objective, a cylindrical support member is erected on the upper surface side of a base formed in a board shape that can be installed at a desired location using heavy materials, The base end of the pole main body formed in the shape of a crank arm is fitted into the support member so that it can freely rotate around a vertical axis of rotation and can freely slide in the direction of the axis of rotation. The end part is suspended on the support member via a guide mechanism consisting of a spiral guide groove centered on the rotational axis and a guide pin fitted into the guide groove installed between the end part and the support member, and the end part is suspended on the support member. This is a pole for practical practice of driving a two-wheeled vehicle, which has a weight attached to the lower end of the pole.

Next, embodiments will be described in detail with reference to the drawings. Note that the same reference numerals in the drawings as in the conventional means are used for constituent members having the same effect.

FIG. 4 is a front view of the entire pole A for practical practice of driving a two-wheeled vehicle, in which the present invention can be implemented.
Reference numeral 4 indicates a base, 5 indicates a support member erected on the base 4, and 2 indicates a crank-shaped pole main body having a proximal end portion 20 fitted into the support member 5.

The base 4 is made of a heavy material such as iron and formed into a circular disk shape, and the lower end of the support member 5 is integrally fixed to the center portion of the upper surface side of the base 4. .

The support member 5 is formed of a pipe made of a metal material or a synthetic resin material, and its lower end is connected to the base 4.
The cover 50 is fixed to the center of the base 4 so that its axial direction is perpendicular to the base 4, and a cover 50 shaped like a cap nut is provided on the outer circumferential surface of the open opening on the upper end side. A male thread is provided for screwing.

The pole main body 2 is made of a pipe made of a light material such as aluminum metal or synthetic resin material, and is shaped like a crank and has a long vertical part 21, a horizontal part 22 corresponding to approximately the radius of the base 4, and a short vertical base end part 20. It is formed in and the proximal end 20 of it
The outer diameter of the supporting member 5 is smaller than the inner diameter of the supporting member 5, and the supporting member 5 is loosely inserted into the open opening at the upper end of the supporting member 5 as shown in FIG. The support member 5 and the proximal end are supported by a ring-shaped bearing 6 that is fixedly installed inside the ring-shaped bearing 6 so that it can freely slide in the axial direction (up and down direction) and in the rotational direction. It is suspended from the support member 5 via a guide mechanism a provided between the support member 20 and the support member 5.

In the embodiment shown in FIGS. 5 to 7, the guide mechanism a has an elongated hole in the trunk wall of the proximal end 20 of the pole main body 2 and has a length extending over an angle range of 90 degrees in plan view. A pair of spiral guide grooves 70 are provided with a phase difference of 180 degrees in the circumferential direction, and
The support member 5 has these pair of guide grooves 70, 7.
Shaft holes 71, 71 are provided in correspondence with 0,
A guide pin 72 is passed through these, and both ends of the guide pin 72 are fixed to the outer peripheral surface of the support member 5 with cap nuts 73, 73, so that the guide pin 72 fixed to the support member 5 is attached to the pole body. The spiral guide grooves 70, 70 provided on the base end portion 20 of the two are fitted together, and the base end portion 20 is suspended and supported by the support member 5, as shown in FIG. As shown in FIG.
The guide pin 72 is formed into a blind hole, and the guide pin 72 is inserted through the other shaft hole 71 which is a transparent hole, and the inner end is inserted into the shaft hole 71 which is made into a blind hole. In the case where the outer end of the protruding guide pin 72 is held down by a cover plate 74 that is glued to the outer peripheral surface of the support member 5, as shown in FIG.
The length of the guide pin 72 that is passed through the shaft holes 71, 71 provided in the support member 5 is formed to approximately correspond to the outer diameter of the support member 5, and Base end 20 of pole main body 2
In the state where the guide grooves 70, 70 provided in the support member 5 are penetrated, the cover plates 74, 74 are brought into contact with the outer surface portions of the shaft holes 71, 71 of the support member 5, and the cover plates 74, 74 are attached to the outer peripheral surface of the support member 5 by gluing. If you want it to stay attached,
In addition, as shown in FIG.
Shaft holes 71, 71 are opened in the support member 5, and spiral guide grooves 70, 70 are provided in the support member 5. A retaining nut 74 is attached to the outer end side of the guide pin 72 that is threaded through the support member 5. It may be configured as appropriate, such as by being slidably attached to the outer circumferential surface of the holder.

W is a weight attached to the lower end of the base end 20 of the pole main body 2 fitted into the support member 5, and a plug 8 having a screw hole 80 is attached to the lower end of the base end 20. Touch the weight W to the bottom surface and tighten the set screw 81.
It is attached by inserting it from below and screwing it into the screw hole 80.

The embodiment device constructed in this manner operates as follows.

In a stationary state, the pole main body 2 is pulled downward by a weight W attached to the lower end side of the base end 20 of the pole main body 2, and the guide mechanism installed between the base end 20 and the support member 5 By rotating the fitting portion between the guide groove 70 and the guide pin 72 in FIG. 5 until the guide pin 72 abuts against the inclined rising end 70a of the guide groove 70, It is in a lower limit position with respect to the support member 5 as shown in FIG. In this state, the vertical portion 21 of the pole main body 2 is placed in the state shown in FIG. do.

If the body or a part of the vehicle body of a driver performing practical training hits the protruding vertical portion 21 of the pole main body 2, the vertical portion 21 will be pushed forward by the driver's body or vehicle body about to pass. By being pushed out, the pole main body 2 turns around the base end 20, and during this turning operation, the guide mechanism a is brought into a state where the inclined lower end 70b of the guide groove 70 hits the guide pin 72. and push up the pole main body 2. When the driver and the vehicle body pass and the contact is released, the guide mechanism a is pulled downward by the weight W.
The guide groove 70 slides on the guide pin 72 to rotate the pole main body 2 in the opposite direction, and
The state shown in the figure becomes stable and returns to the initial state.

As explained above, the pole for motorcycle practical training according to the present invention has a cylindrical support member erected on the upper surface side of a base formed in a board shape that can be installed at a desired location using heavy materials. To the supporting member,
The base end of the pole main body formed in the shape of a crank arm is fitted so that it can freely rotate around a vertical axis of rotation and slide freely in the direction of the axis of rotation, and the base end of the pole is attached to Suspended on the support member via a guide mechanism consisting of a spiral guide groove centered on the rotational axis and a guide pin fitted into the guide groove installed between the support member and the lower end side of the proximal end portion. Since it is constructed by installing a weight on the
When the practicing driver's body or part of the car body contacts the pole body, the pole body rotates and is pushed by the spiral guide groove and guide pin of the guide mechanism against the downward pull by the weight. While being raised, it escapes from the driver's body or the car body, and when the contact is released, the guide mechanism is activated by the weight, and it slowly turns and automatically returns to its original position. It is now possible to obtain a pole that automatically restores itself and does not require correction of its position, without getting entangled with or causing damage to the body or the vehicle body.

[Brief explanation of the drawing]

Fig. 1 is a front view of the conventional pole, Fig. 2 is an explanatory diagram of the same state of use as above, Fig. 3 is a front view of another pole, Fig. 4 is a front view of the pole according to the present invention, and Fig. 5 is a front view of the pole according to the present invention.
The figure is a vertical cross-sectional side view of the main part of the same as above, Fig. 6 is a cross-sectional plan view of the main part of the above, Fig. 7 is a front view of the main part of the above with removed from the support member, and Fig. 8 is of another embodiment. FIG. 9 is a longitudinal side view of the main part of another embodiment, and FIG. 10 is a longitudinal side view of the main part of still another embodiment. Explanation of drawing symbols, A...Pole, B...Passway,
W... Weight, a... Guide mechanism, 1... Rubber cone, 10... Support, 2... Pole main body, 2
0... Base end part, 21... Vertical part, 22... Horizontal part, 3... Spring, 4... Base, 5... Support member, 50... Cover, 6... Bearing, 70... Guide groove , 70a... Inclined rising end, 70b... Inclined descending end, 71... Shaft hole, 72... Guide pin,
73... Cap nut, 74... Lid plate, 75... Nut, 8... Plug, 80... Screw hole, 81... Fixing screw.

Claims (1)

[Scope of utility model registration request] A cylindrical support member is erected on the upper side of the base, which is formed into a board shape that can be installed at a desired location using heavy materials, and the base end of the pole main body formed in the shape of a crank arm is attached to this support member. is fitted so that it can freely rotate around a vertical axis of rotation and can freely slide in the direction of its axis of rotation, and its base end is connected to the rotating shaft installed between it and the support member. A practical technique for driving a two-wheeled vehicle, which is suspended on a support member via a guide mechanism consisting of a spiral guide groove centered on the axis and a guide pin fitted into the guide mechanism, and a weight is installed on the lower end side of the base end. Pole for practice.