JPS5846947Y2 - Stopper device for wheeled carriers - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a stopper device for a transport vehicle, which is movable by providing wheels on a base.

Various types of stopper devices have been used to stop this type of transport vehicle, but they generally have a complex structure and are prone to failure, and are difficult to handle and operate. There were drawbacks such as difficulty.

The object of the present invention is to overcome these conventional drawbacks and provide a stopper device that not only stops the transport vehicle, but also allows easy switching operations when moving the vehicle forward again from a stopped state.

The present invention will be explained below by way of an embodiment with reference to the drawings.

The hand-behind transport vehicle A shown in Fig. 1 has front and rear legs 1, 1, 2.2, which serve as a base, assembled in a pair of left and right in a figure-eight shape when viewed from the side, and the upper ends of the front legs 1, 1 are attached to a horizontal bar. so that they are connected together and used as a gripping part 3.

A pair of left and right wheels 4, 4, 4a are provided at the lower ends of the front and rear legs 1, 1.2°2.

Pivot 4a.

In this embodiment, a circular frame-shaped pedestal 5 is attached to the transport vehicle A at the upper position of each leg 1.1, 2.2, and a mixer 6 is housed in the pedestal 5.

Reference numeral 7 denotes a stopper member rotatably mounted on a support shaft 8 horizontally installed at the lower end of the rear leg bodies 2, 2.

This stopper member 7 has a head 7a and a bottom 7b above and below a shaft hole 9 that is pivoted on a support shaft 8, and furthermore, a bolt 10 protruding from the center of the end surface of the bottom 7b has a substantially disc-shaped weight. 11 is screwed on, making it heavier and more imposing than the head 7a.

Then, the length l from the shaft hole 9 to the tip of the head 7a is made larger than the length 11 from the support shaft 8 to the ground E, and from the shaft hole 9 to the tip including the weight 11 on the bottom 7b. The length 12 of is made smaller than the length 11 so that the condition l>11>12 is satisfied.

The stopper member 7 shown in this embodiment is a cam (
cam), the overall shape is approximately trapezoidal,
The head portion 7a and the bottom portion 7b are divided into upper and lower parts at a position passing through the center of the shaft hole 9, and a groove 12 is provided around the inner peripheral surface of the shaft hole 9 perpendicular to the axial direction.

Then, screws 15 are inserted into screw holes 13.13 formed at both ends of the head 7a through through holes 14.14 formed at the bottom 7b.
．． 15, the head 7a and the bottom 7b are combined, and at this time, the protrusion 16 protruding from the center of the support shaft 3 is engaged with the groove 12, so that the stopper member 7 is moved laterally. It is designed not to move.

Further, the end surface of the head 7a is a flat surface, and a non-slip material 17.17 with a corrugated surface is stretched at the corner.

In the stopper member 7 formed in this way, the bottom part 7b, which is shorter than the length from the support shaft 8 to the ground E, is always located at the lower side due to the action of the weight 11, so that the transport vehicle A can be moved freely. When stopping the transport vehicle A, rotate the stopper member 7 halfway with your foot or the like so that one of the corners of the head 7a comes into contact with the ground as shown in Fig. If the transport vehicle is moved 10 CrrL toward the front, the stopper member 7 will automatically continue to rotate and stop the head 7a.
The flat surface of the transport vehicle A is brought into close contact with the ground, resulting in the state shown in FIG. 4, and the transport vehicle A is reliably stopped.

At this time, the wheel 4a is supported in a state where it is lifted from the ground E because the head 7a of the stopper member 7 is larger than the length from the support shaft 8 to the ground E.

If you want to move forward again from this stopped state, the support shaft 8
If you lift the body into the air or move the vehicle forward or backward by a distance of 10 degrees, the stopper member 7 will automatically rotate, the head 7a will naturally leave the ground, and at the same time the bottom 7b will be lifted off the ground. By the action of the weight 11, it is brought to the lower side and can be returned to its original freely movable state.

In this embodiment, the support @ 8 is provided at a position that coincides with the wheel 4a, but the attachment of the support shaft 8 is not limited to this embodiment, and the support @ 8 can be attached to the base on which the wheel is attached. Of course, it is also possible to install the support shaft at a location where it is easy to operate, such as by installing a support shaft horizontally at an appropriate location.

Furthermore, it is also possible to mount a plurality of these stopper devices on both the left and right sides.

As explained above, the stopper device of the present invention has a stopper member that stands up with its own blade like a so-called erecting small hoshi.The bottom part is shorter than the length from the spindle to the ground, and the head part is shorter than the length from the spindle to the ground. It is longer than the length from the ground to the ground and is rotatably attached to the support shaft, and the bottom is always on the lower side, allowing the transport vehicle to move freely.When stopping the transport vehicle, a stopper member is attached. By rotating the wheel so that the head is on the lower side, the wheel can be lifted up and stopped reliably.It is extremely easy to handle with one-touch operation, has a simple structure, is difficult to break down, and is economical. It has many features such as having advantages in terms of aspects as well.

[Brief explanation of the drawing]

The drawings relate to one embodiment of the present invention, and Fig. 1 is an overall perspective view showing a freely movable state, Fig. 2 is an enlarged sectional view of the main part of the same, and Fig. 3 is an explanatory view showing the action of a stopper member. , FIG. 4 is a side view showing the stopped state, and FIG. 5 is an exploded perspective view of the stopper member. 1.1, 2.2... Front and rear legs that serve as a base,
4.4.4a, 4a...wheel, 7...
Stopper member, 7a...Head, 7b...
...Bottom, 8...Spindle, A...Transporter.

Claims (1)

[Scope of utility model registration request] In a wheeled transport vehicle that is made movable by providing wheels on the base, a stopper member is rotatably mounted on a support shaft installed horizontally at an appropriate location on the base, and the stopper member is pivoted on the support shaft. The length from the shaft hole to the tip of the head is made larger than the length from the shaft to the ground, and the length from the shaft hole to the bottom tip is made shorter than the length from the shaft to the ground. In contrast, the weight of the bottom part is made heavier, and the tip of the head part is made a flat surface. A stopper device for a wheeled transport vehicle, characterized in that the wheel of the transport vehicle is lifted off the ground by turning the head downward, thereby stopping the movement of the transport vehicle.