JPS5948237A - Stick with roller - Google Patents

Abstract

PURPOSE:To enable a stick with a roller to serve as a support, by providing it with a brake piece. CONSTITUTION:A roller 19 is rotatably attached through a holder 10 to the lower end part 3 of the stick. The brake piece 6 is also attached through a brake piece holding fittings 7 to the lower end 3 of the stick. The holder 10 is pivotally mounted to the lower end part 3 of the stick 1 by a connecting pin 16 that is in parallel to an axle pin 20. The rotational distance of the holder 10 and the roller 19 rotating about the connecting pin 16 should be set such that on the one hand said rotational distance between the undersurface of the brake piece 6 and the circumferential surface of the roller 19 is the shortest, and on the other hand said rotational distance between the lower end part 3 of the stick 1 and the lower surface part of the holder 10 is made the shortest.

Description

[Detailed description of the invention] The present invention relates to a wheeled cane equipped with wheels.

Canes are used to help people, but because they have their own uses, carrying them for long periods of time can easily tire your arm. This can be difficult to handle, especially when carrying baggage. Nowadays, there are many paved roads in this area, so it would be nice to attach wheels to the lower end of the cane to make it easier to move, but if you just attach wheels, one end of the cane will slip when you use it as a support. There was a problem that it was not very supportive.

This invention was made to solve these problems, and to explain it by way of example, the cane 1 is made of a metal pipe, and the second part has a plastic holder for easy holding. Comes with a rear part 2.

The lower end portion 6 is pressed into a flat shape for easy assembly, and two holes 4 and 5 are provided on the side surface.

The brake piece 6 is fixed to a brake frame holder and a metal fitting 7. In this case, the monthly rate of the brake piece is plastic, but there are other monthly rates that are effective, and if you are pursuing cost reduction, you can use a vibrator, (A itself can be bent at the bottom end and replaced with a brake. Good.The holder 8 is made by bending an elongated metal plate into a horizontally long U-shape.The left end has axle pin holes 11th and 11b.Insert the axle 19 between the axle 19 and the holder 8. By inserting plain washers 21a and 21b between the holder 8 and pivotally supporting them with the axle pin 20, the tonnage 19 is held in the holder 8.In the center of the holder 8, there is a connecting pin hole 12. Place a and 12b.

Null to brim part 1 is the rotation direction surface portion that has the shortest rotational distance from the lower end portion of the cane when rotating in one direction.

The combination of the brake piece mounting bracket 7 and the cane 1 is achieved by passing the bolt 14 through the hole 4 in the lower end and the hole 9 on the side of the protrusion 8 at the top of the brake piece mounting bracket 7, and tightening the nuts 1 to 15. Fixed. The combination of the holder 8 and the cane 1 includes cylindrical nouveau rings 8a and 18 on both sides of the hole 5 in the lower end 6.
b, place the connecting bottle holes 12a and 12b coaxially, pass the connecting bottle 16 through these holes, and tighten the nut 17.

In this case, the spacers 181 and 18b also serve as a spout to prevent the tool 18 from rotating, and the nuts 1-17 are not tightly tightened.

The wheeled cane assembled in this way moves as follows.

The middle wheel 19 can be freely moved around the connecting bin 16 from the position where the circumferential surface of the wheel 19 contacts the lower surface of the brake piece O to the position where the stopper part 13 of the holder 10 contacts the 1: end part of the cane. It rotates and assumes a stable state at either (+'/: ti'+°. Figures 6 and 7. ε3.゛) lxl 6
+7 takes the former position, and 9 Figures 8 and 9 take the latter position.

In the states shown in FIGS. 8 and 9, there is almost no friction between the middle wheels f and j and the road surface 22.

In the states of FIGS. 6 and 7, depending on the rotation direction of the wheel 190,
There is a large difference in the ry<he force between the axle 19 and the player harrow and the related frictional force between the axle 19 and the road surface 72. ,
To explain the reason for this, 5 In the present invention, since the axle holder itself is introduced in a movable state, once the play "C-J'l" comes into contact with the circumferential surface of the middle wheel by the outer knob, the tangent of the circumferential surface As the bow reaches retirement age, the frictional force is also used as a force to move the holder. Of these, the force in the linear direction aimed at the connecting bottle and the wheel bottle is eliminated, but the force as a rotating force remains, so this force is the force between the brake J1 and the wheel circumferential surface. The contact pressure will be increased or decreased.Since the frictional force is proportional to the contact pressure, there will be a large difference in the frictional force depending on the direction of rotation of the heavy wheels.

To explain using Figure 7, when the cane is pressed, the wheel tries to turn clockwise, but this works in the direction of increasing the contact pressure between the brake piece and the circumferential surface, increasing the 9M frictional force, and the wheel does not rotate. , becomes locked. On the other hand, when you pull the cane, even if you put a heavy Fin on the cane and pull it,
The wheels rotate counterclockwise relatively smoothly, following the road surface, and the contact pressure between the brake pieces and the circumferential surface is weakened. The degree of this is related to the sliding friction coefficient between the wheel and the brake piece, the sliding friction coefficient between the wheel and the road surface, the tilt angle of the holder, the nodding angle of the brake wheel, etc. In this case, be weakened.

As for how this cane is used.

When a cane is used as a support, the cane becomes almost perpendicular to the road surface 22 as shown in Figure 6, and the force is applied from above. 19 does not rotate. In other words, the cane serves as a support.
fruitless.

11. Using the cane as a support, the propulsive force of step f1 is increased. ), the road surface will be pushed as shown in Fig. 7, but in order to push the road forcefully, the cane is not moved very far, so the axle pin 20 is connected to the continuous thread -11-16. The circumference m1 of the axle 19 is in contact with the flat surface of the brake harrow. In this case, the wheel does not rotate due to the above-mentioned function, and the cane receives a small propulsion force from the road surface at T1. ) can be done.

When pulling the cane, 5 and 7. Or, the state of 8 will be taken, but in the case of Figure 5, the frictional force is greatly weakened as shown in 0111E, so it can be pulled as smoothly as 0111E. In the case of Fig. 8, if you further tilt the cane from the state shown in Fig. 7 and bring it until the axle bin 20 is to the right of the connecting bin 16, the holder 8 will rotate and it will be in this state. You can draw your staff without using any force. And -11, (1'< J・!r If you rotate the tool ε, even if you turn the cane a little), the ton I-bin 2° will not come to the left of the connecting bin 16, so it will be stable. You can pull it.

If you want to return to the open state, raise the cane as shown in Figure 9, and the car 1iIl + bin 20 will be to the left of the connecting bin 16, returning to the state shown in Figure 6.

71- Even if the position of part of the brim is different, when the cane is lifted, the axle bin 20 will be almost directly below the connecting bin 16 due to the weight of the wheel, so it can be returned to the state shown in Fig. 6 with a slight operation. .

As described in 1., the present invention allows the series of movements f'1 using a cane to be performed without special operations, and is therefore easy to handle. In addition, the fatigue of the arm when carrying the cane, which is a drawback of conventional canes, is greatly reduced because it does not require much force when pulling. Especially when you have baggage.

If you attach this to a walking stick, it will be easier to transport. When you can't walk well, if you hold up your cane, you won't slip like you would if you just put wheels on it, so there's no need to hold your baggage or cane up.

As described above, the present invention has a wide range of effects, but
Specific examples of uses include a cane for roller skating and a 1-ton bag for carrying shopping bags.

Moreover, the point at which the cane is pulled is not limited to one part of the cane, and if baggage is tied to the cane, it may be pulled or pushed. By attaching the 1st end of the ski to this and pulling the upper end of the 24 key, it can also be used as a tool for moving the ski.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of the present invention, and FIG. 2 is a perspective view of the cane. Fig. 4 is a perspective view of the brake piece, Fig. 4 is a perspective view of the mountain holder, Fig. 5 is a sectional view of Fig. 1 A, -A, and Fig. 6 is a cane placed on the road surface. Side view, Fig. 7 is a side view with the cane slightly tilted, Fig. 8 is a side view with the cane slightly tilted. Rib part, Ro: L one end. 415: Hole, 6: Brake J'!'+ 7: Brake piece holding fitting, 8: Projection, 9: Hole. 10: Holding tool, 11n ・1111: Tunnel 11i
l] 1 bottle hole.

Claims (1)

[Claims] A brake piece is attached to the lower end of the cane, a wheel is rotatably supported on the holder by an axle pin, and the holder is pivotally supported at the lower end of the cane by a connecting pin parallel to the axle pin. The rotation distance around the connecting pin between the wheel cane and the brake piece is set to be the shortest in one direction between the lower surface of the brake piece and the wheel circumference, and in the other direction by the rotation of the lower end of the cane and the holder. A cane with wheels characterized by the shortest directional section.