JPH053286Y2 - - Google Patents

Description

[Detailed explanation of the idea] <Industrial application field> The present invention relates to a trackless mold carrier.

<Prior art> To explain the prior art with reference to FIGS. 6 to 8, reference numeral 1 denotes a trackless mold carrier that loads a mold 2 shown by a chain line, transports the mold into and out of a molding machine, and transports the mold from the mold storage area. This is used to transport molds. 3
Reference numeral numeral 4 denotes a truck, and numeral 4 denotes wheels, which are rotatably mounted around a fulcrum axis A, so that the mold carrier 1 can run on a road surface L in any direction.
Reference numeral 5 denotes a drive wheel for moving the mold carrier 1, which is attached to the trolley 3 so as to be rotatable about a central axis B, and can change direction using a handle or the like (not shown). Reference numeral 6 indicates a jack for lifting the mold carrier 1, and it is normally set a little apart from the road surface L (dimension L), but when changing the direction of the mold carrier 1, it is used as shown in Fig. 8. When the above-mentioned jack 6 is operated and the dimension l is reduced and the mold carrier 1 is lifted, the drive wheel 5 rises from the road surface L and is rotated about the central axis B by a handle or the like (not shown). It makes it easy to change direction.

<Problems to be solved by the invention> As mentioned above, in the conventional device, the cart and the drive wheel are integrated, so in order to float the drive wheel when changing direction, it is necessary to Since the entire heavy mold carrier has to be lifted, the jacks become large, which is disadvantageous in terms of cost.Furthermore, since there are no tracks, the mold carrier carrying the heavy mold will slide over the uneven road surface. It was difficult to run.

This invention eliminates the disadvantage of lifting the heavy mold carrier when changing direction, and makes it possible to easily change direction.The present invention is a trackless mold carrier that can easily handle uneven road surfaces. The purpose is to provide

<Means for Solving the Problem> In order to achieve the above-mentioned object, the present invention includes a truck for loading molds, a truck attached to the truck,
In a trackless mold carrier consisting of a wheel that freely rotates around an attachment fulcrum and allows the cart to travel in any direction on the road surface, and a drive wheel that is attached to the cart and moves the cart by a drive source, the drive The present invention is characterized in that a pressing device is provided so that the wheels are always pressed against the road surface, and a driving device is provided that acts so that the drive wheels are separated from the road surface only when the truck changes direction. It was made into a trackless mold carrier.

<Function> When changing the direction of the mold, there is no need to lift the heavy mold carrier, the drive wheels can be lifted above the road surface, and the drive wheels are always pressed against the road surface by the pressing device.

<Example> Next, an example of the present invention will be described with reference to FIGS. 1 to 5. Reference numeral 11 denotes a mold carrier, and a wheel is rotatably mounted on a cart 12 for loading molds around a fulcrum shaft C. 13 is installed. Reference numeral 14 denotes a driving wheel which is rotationally driven by a motor 15 and is adapted to move the mold carrier 11. Further, as will be described later, the direction of the mold carrier 11 can be changed after the drive wheels 14 are lifted off the road surface using a handle (not shown) or the like.

As shown in the detailed explanatory diagrams of FIGS. 3 to 5, the drive wheel 14 is rotatably driven by a motor 15 and can move forward and backward in the direction of arrow a (vertical direction) by means of pressure oil acting on a hydraulic cylinder 16. It's summery. When pressure oil regulated by a pressure reducing valve (not shown) acts on the hydraulic cylinder 16 in the direction of arrow b, the piston 17 is pushed down, and the piston 17 is pushed down to the drive wheel 14 via the piston rod 18 and the wheel 19.
is pressed against the road surface L. Further, when the mold carrier 11 changes direction, pressure oil is applied from the direction of arrow d, and the drive wheel 14, together with the bracket 20 that rotatably supports the drive wheel 14, moves toward the road surface L as shown in FIG.
The mold carrier 11 is lifted up, and while supported only by the wheels 13 shown by chain lines, it is rotated around the axis D via the bevel gear 21 by a steering handle (not shown) or the like. There is.

22 is used to lift the drive wheel with a guide,
It is meant to guide you.

<Effects of the invention> When changing the direction of the mold carrier, the drive wheel can be easily raised above the road surface, and the drive wheel is always pressed against the road surface by the pressing device, making it possible to cope with unevenness of the road surface.

[Brief explanation of drawings]

1 and 2 are views showing one embodiment of the present invention, and FIG. 1 is a front view. Figure 2 is a side view. 3 to 5 are detailed explanatory diagrams of the drive wheel, and FIG. 3 is a side view thereof. Figure 4 is a front view. Figure 5 is a diagram when the drive wheel is lifted up. 6 to 8 are diagrams of a conventional device, and FIG. 6 is a front view thereof. Figure 7 is a side view.
Figure 8 is a diagram when the mold carrier is lifted from the road surface. 12...Dolly, 14...Drive wheel, 15...Motor, 16...Hydraulic cylinder, 19...Axle, 20
...Bracket, 21...Bevel gear.

Claims (1)

[Scope of utility model registration request] A trolley for loading molds; a wheel attached to the trolley that freely rotates around a mounting fulcrum and allows the trolley to run in any direction on the road surface; and a wheel attached to the trolley and driven by a drive source. In a trackless mold carrier consisting of driving wheels to be moved, a pressing device is provided so that the driving wheels are always pressed against the road surface, and the driving wheels are separated from the road surface only when the cart changes direction. A trackless mold carrier characterized by being equipped with a drive device that acts on the trackless mold carrier.