JPS5829687Y2 - Hopper for ready-mixed concrete - Google Patents

Description

[Detailed description of the invention] This invention relates to a hopper for ready-mixed concrete that is suspended by a tow truck or a crane (hereinafter simply referred to as a crane) and used for pouring concrete into high places.

Conventional hoppers for this kind of container are funnel-shaped,
When receiving ready-mixed concrete from a mixer, a stand is required to rest the hopper, and as a result of the hopper being inevitably taller, the mixer truck must be lifted to receive the ready-mixed concrete, which can cause the mixer truck to run aground. I needed a stand to do it.

The present applicant previously stated in Utility Application No. 53-31439,
The bottom of the hopper is made flat, and a ready-mixed concrete spout is provided at a location other than the bottom. Ready-mixed concrete is poured by pulling up a cable attached to the opposite side of the spout and tilting the hopper suspended from the end of the crane. He proposed that this could be done by doing so, thereby eliminating the need to lift morgues and mixer trucks.

This invention is a hopper with the above structure in which the bottom is flat and the ready-mixed concrete spout is provided at a location other than the bottom, and the hopper tilting device is further omitted.An example of this will be explained below based on the drawings. .

In Fig. 1, reference numeral 1 is a box-shaped ready-mixed concrete hopper with a flat bottom, and a funnel-shaped spout 2 is provided at the lower part of the negative side, and an operating rod is connected to the tip via a flange. 3 is connected to the hose 4.

Reference numeral 5 denotes a rope that removably connects the middle part of the hose to the upper part of the hopper, and normally lifts and supports the hose to prevent ready-mixed concrete from flowing out from the tip of the hose even if the hopper is tilted as described later.

A sled 7 with the spout 2 side curved upward is fixed to the lower end of the hopper on both sides of the spout 2, while a handle 8 is rotatably attached to the upper part of the hopper on the opposite side of the spout 2. The upper portion of the cable is connected to a hook 10 at the end of the cable 9, which is suspended from the end of a crane (not shown).

The upper surface of the hopper is further inclined upward toward the spout 2 from the side of the handle 8, and the upper part of the slope is removed and the upper plate 1
1 is fixed.

To pour concrete, first, an appropriate amount of ready-mixed concrete is received from a mixer while the middle part of the hose is lifted and supported by cables 5 that are secured to the upper part of the hopper.

Thereafter, when the cable 9 fixed to the handle 8 is pulled up, the hopper is pulled upward while rotating using the pivot point to the handle as a fulcrum and the curved part of the tip of the sled as a fulcrum.

Here, the rotation of the hopper stops when the center of gravity of the hopper storing ready-mixed concrete reaches the extension line of the cables 9.

In order to discharge fresh concrete from the hopper that has been moved to a desired position, the user grasps the operating rod 3, applies the tip of the hose to the concrete pouring location, and removes the intermediate portion of the hose from the cable 5 to make it free.

The fresh concrete may be discharged by installing a valve device at the end of the hose and opening this device, or by extending a retractable lid or a cord 5 whose length can be adjusted. You can also do this.

As described above, in this invention, the handle is pivoted at a location remote from the center of gravity of the hopper, so the hopper can be tilted just by being lifted, eliminating the need for a tilting device.

In addition, when tilting, the spout is provided with curvature on both sides, which prevents damage to the spout.Furthermore, the top surface of the hopper is slanted upwards toward the spout, so even if the hopper is tilted, the interior of the spout can be prevented. The ready-mixed concrete will not overflow.

[Brief explanation of drawings]

FIG. 1 is a perspective view of a hopper according to the present invention, and FIG. 2 is a front view of the hopper in a lifted state. 1...hopper, 2...pouring spout, 4...
・Hose, 5...Cable, 7...Sled, 8...Handle, 9...Curved cable.

Claims (1)

[Scope of utility model registration request] The hopper 1 has a flat bottom and a ready-mixed concrete spout 2 at the bottom of the side. A handle 8 is rotatably attached to the upper side of the hopper 1 on the opposite side, sandwiching the center of gravity from the spout 2. This hopper for ready-mixed concrete is such that when the cables are attached to hanging cables 9 and then pulled up, the hopper is tilted relative to the handle and lifted.