JPH0113000Y2 - - Google Patents

Description

[Detailed explanation of the invention] This invention is suspended from a hanger rail and moved.
The present invention relates to a transport vehicle for a trolley conveyor that can be detached from the rails and freely moved when landing on the floor.

Conventionally, as shown in FIG. 1, the hanger rail suspension structure of this type of transportation trolley includes a running roller that is suspended on a hanger rail 3 at the upper end of a connecting rod 2 that is guided and supported so as to be movable up and down in the front and back of the trolley 1. C-shaped hangers 4 with one side open are connected via a horizontal pin in the conveyance direction so that they can be bent, and the front and rear C-shaped hangers 4 suspended from a hanger rail 3 as shown in FIG. A known example is one in which both ends of a load bar 5 are horizontally rotatably connected, and a suspension fitting 6 attached to a cart 1 is hooked to the center of the load bar 5.

Generally, the above-mentioned transport cart is manually operated, and the hanger rail is slid at an incline, or the rail is lowered in the hanger attachment/detachment section.
However, since the C-shaped hanger 4 of the conventional transport trolley cannot rotate in the front and back direction with respect to the trolley 1, it may slide on the inclined rail and collide with the preceding trolley, or the front part may crash at the moment of landing. When an impact force is applied to the swivel wheel 7, the rear C-shaped hanger 4 may float up from the rail 3 and come off the rail.In addition, in the conventional example shown in FIG. 1, the connecting rod 2 is long and has insufficient bending strength. As a result, they had drawbacks such as being bent due to impact during transportation.

The object of the present invention is to provide a transport vehicle for a trolley conveyor which eliminates the above-mentioned drawbacks of the conventional art.

In this proposal, the load bar shown in Fig. 2 is divided into two parts at the center, and the center part is pivoted to the cart so that it can swing up and down, and the front and rear parts of the load bar are engaged by hooks fixed to the cart. This structure prevents the load bar from bending upward due to the weight of the truck.

The illustrated embodiment of the present invention will be explained below.
is run on the rail 3 by running rollers 8 as in the conventional case, and the front and rear load bars 5a, 5b are connected to the lower end of the hanger 4 by a vertical pin 9 and a stopper 10.
The outer ends of the load bar 5 are connected to each other so that they can rotate freely horizontally.
The inner ends of a and 5b are inserted into each other in a concave and convex shape, and together with the U-shaped fitting 11 surrounding the outside, the lateral pins 1
At 2, they are connected so that they can swing up and down. An inverted U-shaped support base 13 is fixed to the upper center of the truck 1, and bolts 15 are inserted into horizontal grooves 14 (Fig. 5) formed at the upper part.
is inserted, and the U-shaped metal fitting 11 is fixed to the support base 13 with the bolt and nut. In the fixed state, the trolley 1
Hook fittings 16 that lock onto the upper surfaces of the load bars 5a and 5b are fixed to the front and rear portions of the load bars 5a and 5b.

In this way, most of the weight of the cart 1 in the suspended state is applied from the hooking fitting 16 to the front and rear C-shaped hangers 4 via the load bar, and the support base 13 prevents the inner ends of the load bars 5a and 5b from descending. It acts as a support from below. In this state, when the trolley 1 is suspended, the load bars 5a and 5b form a substantially straight line and are parallel to the rail 3, and operate in the same manner as the conventional load bar 5.

When the trolley 1 lands on the low part of the rail 3, C
The hanger 4, together with the load bars 5a and 5b, descends with respect to the trolley 1 due to its own weight as shown by the chain line in FIG.
is pivotally attached to the hanger 4 by horizontal horizontal pins so that it can freely swing up and down, so even if the C-shaped hanger 4 is lowered as described above, the head 17 will not rotate parallel to the rail 3. However, the roller 8 does not float up from the rail 3. That is, the front and rear C-shaped hangers 4, 4 can be lowered separately while maintaining engagement with the rail 3. Therefore, even if the bogie 1 collides with the preceding bogie or the rear part of the bogie lifts up due to the impact force upon landing, the rear C-shaped hanger 4 will descend relative to the bogie 1 and will not engage with the rail 3. maintain alignment and never fall off the track.

To remove the trolley 1 from the rail 3, lower the rail 3, lower the C-shaped hanger 4, and lift the C-shaped hanger 4 slightly by holding the handles 18 attached to the tips of the load bars 5a and 5b. Either move the load bars 5a, 5b to the side or lift the parts near the inner ends of the load bars 5a, 5b with both hands to shift the truck 1 laterally, and then lower the load bars 5a, 5b onto the truck 1. In this case, a cushion rubber 19 is attached to the lower surface of the stopper 10 in order to reduce the impact of the load bar on the truck.

In addition, in order to separate the cart 1 from the C-shaped hanger 4 in order to use it as a handcart, remove the bolt 15, separate the U-shaped fitting 11 from the support base 13, and then remove the load bar 1.
All you have to do is remove the hooks a and 5b from the hook 16. In order to prevent the inner end connecting portions of the load bars 5a and 5b from sagging after this separation, in this embodiment, as shown in FIGS. 20b is pin 1
In the state in which 2 is fitted, each of the load bars 5a and 5b comes into contact with the notches 21a and 21b of the other load bar to prevent the drooping, and the lower corners of the tips 20a and 20b are rounded into a quarter circle, so that the load bars 5a and 5b are not in the shape of a mountain. Formed to be bendable. As a structure that allows the load bars 5a and 5b to swing only downward from the straight line position, any suitable well-known structure can be used.

The present invention has the above configuration, and the load bar is hinged at the center and can be bent into a mountain shape.
Even if the trolley sways back and forth due to impact during a collision or landing, this oscillation will not lift the C-shaped hanger, preventing the wheels from coming off, and ensuring that the front and rear C-shaped hangers can be connected to and disengaged from the rail at the center of the bogie. Since it can be done in-house, it has the advantage of being convenient to handle.
In addition, since the pin that connects the C-shaped hanger to the load bar is very short, the strength against collisions during transportation can be sufficiently increased, and the combination of the C-shaped hanger and load bar is independent of the length of the cart in the transportation direction. Since it can be easily manufactured, it has the effect of reducing costs through standardization.

[Brief explanation of the drawing]

Figures 1 and 2 are elevation views of different conventional examples, Figures 3 and below show an embodiment of the present invention, Figure 3 is an elevation view when the rail is suspended, and Figure 4 is a side view. , FIG. 5 is a plan view of the support base, and FIGS. 6 and 7 are a partial plan view and a partial elevation view, respectively, of the load bar connection portion. 1... Trolley, 3... Hanger rail, 4... C
Type hanger, 5a, 5b...Load bar, 7...
Swivel wheel, 8...travel roller, 16...load bar hooking fitting.

Claims (1)

[Scope of utility model registration request] A C-shaped hanger with one side open is attached to a trolley with swivel wheels, and the C-shaped hanger suspends the trolley from the hanger rail and slides, and in the section where the hanger is attached/detached, the hanger rail lowers to allow the swivel wheels to land on the floor. In a transport trolley for a trolley conveyor, in which the C-shaped hanger can be detached from the hanger rail, the inner ends of a pair of front and rear load bars extending in the front and back direction are pivoted at the center of the upper part of the trolley so that they can freely swing vertically. At the outer end of the bar, the lower end of a C-shaped hanger, which is equipped with a traveling roller mounted on the hanger rail on one side of the upper end, is connected freely to rotate around a vertical axis perpendicular to the load bar, and the lower end of the C-shaped hanger is attached to the upper end of the bar, and the lower end of the C-shaped hanger is freely rotatable around a vertical axis perpendicular to the load bar. A transport trolley for trolley conveyors with fixed load bar hooking fittings that hold the front and rear load bars in almost a straight line when held.