JPH053453Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field This invention relates to a trolley conveyor transport vehicle that can be suspended from a hanger rail and moved freely by detaching from the rail when landing on the floor.

Prior Art and its Problems Conventionally, when transporting goods for a trolley conveyor by suspending it from a hanger rail and moving it around the storage shelf while loading and unloading articles between the trolley and the storage shelf, the transporting trolley was curved. Since the container swings from side to side due to centrifugal force, it not only reduces the work capacity for carrying in and out, but also there is a risk that the loaded articles such as bottles on the carrier may fall over and be damaged.

The purpose of this proposal is to propose a trolley conveyor carriage that prevents the above-mentioned rocking.

Means for Solving the Problems In order to achieve the above-mentioned purpose, the present invention provides a trolley conveyor transport vehicle with running wheels that is suspended from a hanger rail and can move freely by detaching from the rail when landing on the floor. The present invention is characterized in that it is equipped with flexible wheels that can protrude further downward, are biased downward, are freely raised and lowered, and press against the floor surface in the suspended state.

Function: When the transport trolley is suspended from the hanger rail and moved, the flexible wheels project downward from the running wheels and come into pressure contact with the floor surface, and the frictional force caused by this pressure prevents or reduces the left and right rocking of the transport trolley. . When the transport vehicle is placed on the floor, the flexible wheels are pushed upward to support the transport vehicle together with the traveling wheels and travel.

Embodiment FIGS. 1 and 2 are an elevation view and a side view, respectively, of the conveyance vehicle 1 according to the present invention in a state where it is suspended from a hanger rail. The upper part of a C-shaped hanger 6 with one side open, which is equipped with free wheels 5 and can freely rotate horizontally on the upper part of the main body, is suspended from a hanger rail 8 via running rollers 7 and transported manually.

One or two ball casters 10 having rubber balls 9 shown in FIG. 3 are attached to the lower part of the truck body 4. The support shaft 11 of the caster 10 is connected to the main body 4.
It is fitted into a sleeve 12 fixed to the lower surface of the sleeve 12 so as to be able to rise and fall, and is under pressure by a compression spring 13, and a protrusion 14 protruding from the support shaft 11 is fitted into a vertical long groove 15 formed in the sleeve 12. The vertical height of the ball caster 10 is limited. When the support shaft 11 is at the lowest position, the ball 9 can protrude below the swivel wheel 5, and this protrusion length a is equal to the distance b between the swivel wheel 5 and the floor surface 16 in the suspended state.
It is set to be sufficiently larger. Furthermore, when the support shaft 11 is in the uppermost position, the ball 9 can rise higher than the swivel wheel 5 and does not interfere with the running of the wheel 5.

When the transport vehicle 1 is in the suspended state, the ball 9 is pushed up by the floor surface 16 by a length C=a-b. Floor surface 1 due to compressive force
6.

If there is one ball 9 in the center of the lower surface of the trolley main body 4, as shown in FIG. The ball 9 attempts to move along an arc S with radius R1, and in the diagonally shaded area where the arc is below the floor 16, the ball 9 comes into pressure contact with the floor 16,
The rocking of the transport vehicle 1 is prevented or reduced by the frictional force between the two. Furthermore, when the transport vehicle 1 swings back and forth, the ball 9
If there is no floor surface 16, one C-shaped hanger 6
Arc S1 or S2 of radius R2 centered on the upper end of
The ball 9 tends to move along the same direction, and the rocking movement is prevented or reduced by the frictional force generated between the ball 9 and the floor surface 16 in the shaded area as described above.

As shown in FIG. 6, if two ball casters 10 are arranged side by side at the lower part of the truck body 4 with an interval l, the balls 9 tend to move on an arc S3 with a radius R3 larger than the radius R1 in FIG. , are in pressure contact with the floor surface 16 within a wide diagonal range in the horizontal direction. This pressure contact force is more than twice that in the case of FIG. 4, and can exert an effective rocking prevention effect over a wide range in the lateral direction.

As shown in FIG. 7, if two ball casters 10 are provided in a staggered manner on the lower surface of the truck body 4, a great effect of preventing rocking in the longitudinal and lateral directions can be obtained.

FIG. 8 shows another support structure for supporting the rubber balls 9 instead of the ball caster 10, in which the bogie body 4
The upper end of the arm 18 is pivoted in a direction perpendicular to the transfer direction to a bracket 17 protruding from the lower surface, and the horizontal angle of the arm 18 is limited by stoppers 19 and 20, and the arm 18 is rotated downward by a spring 21. It has a structure in which a ball caster 22 is attached to the lower end of the arm 18, and its rocking prevention effect is similar to that of the ball caster 10.

When the transport vehicle 1 is run on the floor, the ball 9
Since it can roll in any direction in contact with the floor surface 16, it does not interfere with the running of the transport vehicle 1.

Effects of the invention The present invention has the above-mentioned configuration, and when the transport vehicle is suspended from the hanger rail and travels, the ball caster is in pressure contact with the floor surface, so there is no swinging around curves, and the goods on the transport vehicle are not moved. It is convenient for loading and unloading work and has the effect of making picking etc. more efficient.Also, since the ball caster supports part of the load of the transport vehicle, the support strength of the hanger rail is increased by that amount and the amount to counter the centrifugal force at the curve. It has the effect of reducing

[Brief explanation of drawings]

The drawings show an example of the present invention, and Figure 1 is an elevational view;
Fig. 2 is a side view, Fig. 3 is an elevational view showing the mounting structure of the ball caster, Figs.
Figure 7 is a bottom view of another example of ball caster installation.
FIG. 8 is a schematic elevational view showing another mounting structure for the ball caster. 1... Transportation trolley, 5... Running wheels, 8... Trolley rail, 10... Flexible wheels, 16... Floor surface.

Claims (1)

[Scope of utility model registration request] A trolley conveyor transport vehicle with traveling wheels that is suspended from a hanger rail and can move freely by detaching from the rail when landing on the floor, is capable of protruding downward from the traveling wheels, is biased downward, and can freely move up and down. A transport trolley for a trolley conveyor, characterized by being equipped with flexible wheels that press against the floor surface in a suspended state.