JP7510772B2 - Concrete supply equipment - Google Patents

Description

The present invention relates to a concrete bucket that transports concrete at a construction site. The present invention also relates to a concrete supply device that supplies concrete at a construction site.

The bucket method is commonly used as one of the concrete transport methods in architectural and civil engineering works. In the bucket method, ready mixed concrete (hereafter referred to as "ready mixed concrete") supplied from a concrete mixer is filled into a concrete bucket, which is a transport container, and the concrete bucket is then hoisted by a hoist such as a tower crane and transported to the concrete pouring site, where the ready mixed concrete is supplied from the concrete bucket.

In general, the concrete bucket has a structure in which at least the lower half is conical, so that the ready-mixed concrete is supplied to the concrete pouring site via a hose connected to a discharge port located at the very bottom of the concrete bucket, and the ready-mixed concrete is allowed to fall naturally due to the gravity of the ready-mixed concrete, and discharged into the hose.

As buildings have become taller in recent years, the time it takes to hoist and transport concrete buckets to the concrete pouring site tends to be longer. As a result, there is a tendency for separation of materials in ready-mixed concrete to occur due to the vibrations caused by transporting the concrete bucket and the fact that aggregates with a high specific gravity contained in the ready-mixed concrete settle in the concrete bucket due to their own weight.

Meanwhile, Patent Document 1 proposes a concrete bucket that continuously discharges ready-mixed concrete without bringing the concrete bucket itself close to the concrete pouring location. The concrete bucket described in Patent Document 1 has a structure that includes a discharge mechanism that is arranged on the discharge outlet side of the ready-mixed concrete container and is composed of a spiral body that is rotated by a driver to forcibly discharge the ready-mixed concrete in the ready-mixed concrete container from the discharge outlet, and a hose body that guides the ready-mixed concrete discharged by this discharge mechanism to the concrete pouring location.

Japanese Patent Application Laid-Open No. 10-109759

The concrete bucket described in Patent Document 1 is equipped with a discharge mechanism, which reduces the need to place it close to the concrete pouring site. However, when the concrete bucket filled with ready-mixed concrete is transported, it is difficult to mix the separated material with the material at the top of the container, although the settled aggregate near the discharge mechanism in the ready-mixed concrete container can be stirred by driving the discharge mechanism.

In view of the above problems, one of the objectives of the present invention is to provide a concrete bucket that suppresses material separation of the ready-mixed concrete supplied to the concrete pouring site. Another objective is to provide a concrete supply device equipped with a concrete bucket that suppresses material separation of the ready-mixed concrete supplied to the concrete pouring site.

The concrete bucket according to one embodiment of the present invention includes a concrete storage section, a discharge outlet disposed in the concrete storage section, and a mixing mechanism that moves and mixes the concrete from the side where the discharge outlet is disposed to the opposite side.

The mixing mechanism may include a spiral structure disposed on the inner wall of the concrete container.

The mixing mechanism may include a blade-shaped rotating part arranged on the inner wall of the concrete container.

The concrete supply device according to one embodiment of the present invention comprises any one of the above concrete buckets and a frame that is disposed outside the concrete bucket and supports the concrete bucket.

The concrete bucket may further include a drive unit disposed outside the concrete bucket for rotating the concrete bucket.

The concrete bucket may further include a rotor placed in close contact with the concrete bucket outside the concrete bucket, and a drive unit for rotating the rotor, and the concrete bucket may be rotated by driving the rotor.

It may further include a drive unit arranged outside the concrete bucket to rotate the wing-like rotating unit.

The frame is disposed on the discharge side of the concrete bucket and has a receiving portion that is connected to a hose, and the receiving portion may guide the concrete discharged from the discharge port to the hose.

According to one embodiment of the present invention, it is possible to provide a concrete bucket that suppresses material separation of the ready-mixed concrete supplied to the concrete pouring location. Also, according to one embodiment of the present invention, it is possible to provide a concrete supplying device equipped with a concrete bucket that suppresses material separation of the ready-mixed concrete supplied to the concrete pouring location.

1 is a schematic diagram illustrating a concrete transport method using a concrete supply device 100 according to one embodiment of the present invention. FIG. 1 is a schematic diagram showing a concrete supplying device 100 according to one embodiment of the present invention. 3 shows a cross-sectional view of a concrete supplying device 100 according to an embodiment of the present invention taken along line AA' in FIG. 2 . 1 is a schematic diagram showing a concrete bucket 110 according to one embodiment of the present invention, where (a) shows a cross-sectional view of the concrete bucket 110 taken along line AA' in Figure 1, and (b) shows a cross-sectional view of the concrete bucket 110 taken along line BB' in (a). 1 is a schematic diagram of a concrete supplying device 100 according to an embodiment of the present invention placed horizontally. FIG. FIG. 2 is a schematic diagram showing a concrete supply device 200 according to one embodiment of the present invention. 7 shows a cross-sectional view of a concrete supplying device 200 according to an embodiment of the present invention taken along line CC' in FIG. 6 . FIG. 1 is a schematic diagram showing a concrete supply device 300 according to an embodiment of the present invention. 9 is a cross-sectional view of a concrete supplying device 300 according to an embodiment of the present invention taken along line AA' in FIG. 8 . FIG. 2 is a schematic diagram showing a concrete bucket 310 according to one embodiment of the present invention. FIG. 4 is a schematic diagram showing a concrete supply device 400 according to one embodiment of the present invention. FIG. 1 is a schematic diagram showing a concrete supply device 500 according to an embodiment of the present invention. FIG. 13 is a schematic diagram showing a support portion 651 according to an embodiment of the present invention.

Each embodiment of the present invention will be described below with reference to the drawings. Note that the embodiments are merely examples, and any embodiment that a person skilled in the art could easily come up with by making appropriate modifications while maintaining the gist of the invention is naturally included within the scope of the present invention. In addition, in order to make the explanation clearer, the drawings may show the width, thickness, shape, etc. of each part in a schematic manner compared to the actual embodiment. However, the shapes shown in the drawings are merely examples and do not limit the interpretation of the present invention.

For the sake of convenience, the terms "above", "upper", "upper part", "below", "lower part", and "lower part" are used in this specification, but these terms merely describe the hierarchical relationship of each component. For example, when describing the positional relationship of components of a structure (e.g., a concrete bucket or concrete supply device), the normal use of the structure is used as the basis, and the surface side on which the structure is installed (e.g., the floor side) may be referred to as "lower", "lower part", or "lower part".

In this specification, the letters "first," "second," etc., attached to each component are convenient labels used to distinguish each component, and have no other meaning unless otherwise specified.

In this specification and drawings, the same reference numerals are used to collectively represent multiple identical or similar components, and capital or lower case letters may be added to distinguish between the multiple components. In addition, a hyphen and a natural number may be used to distinguish between multiple parts of a single component.

Furthermore, the following embodiments can be combined with each other as long as no technical contradiction occurs.

After extensive research to solve the above problem, the inventors discovered that if the aggregate that has settled to the bottom of the concrete bucket can be dispersed at least before the ready-mixed concrete is discharged into the hose after the concrete bucket is transported to the concrete pouring site, ready-mixed concrete with no separated materials can be supplied to the concrete pouring site.

Figure 1 is a schematic diagram illustrating a method of transporting concrete using a concrete supplying device 100 according to one embodiment of the present invention. During construction work on a building 50, the concrete supplying device 100 is hoisted by a hoist 10, and a worker 20 pours ready-mixed concrete at a concrete pouring site. A hose 101 is connected to the concrete supplying device 100, and ready-mixed concrete is supplied from the concrete supplying device 100 via the hose 101. The worker 20 operates the hose 101 to perform the concrete pouring work.

[Embodiment 1]
Fig. 2 is a schematic diagram showing a concrete supplying apparatus 100 according to an embodiment of the present invention. The concrete supplying apparatus 100 includes, for example, a concrete bucket 110 and a frame 150. Fig. 3 shows a cross-sectional view of the concrete supplying apparatus 100 taken along line segment AA' in Fig. 2. Fig. 4 is a schematic diagram showing the concrete bucket 110 according to an embodiment of the present invention. Fig. 4(a) shows a cross-sectional view of the concrete bucket 110 taken along line segment AA' in Fig. 2, and Fig. 4(b) shows a cross-sectional view of the concrete bucket 110 taken along line segment BB' in Fig. 4(a).

In one embodiment, the concrete bucket 110 includes a concrete storage section 111 and a discharge port 115 disposed at the end of the concrete storage section 111. A stirring mechanism 113 is disposed inside the concrete storage section 111. The stirring mechanism 113 is a means for moving and stirring the concrete from the side where the discharge port 115 of the concrete storage section 111 is disposed to the opposite side. In one embodiment, the concrete bucket 110 includes a spiral structure disposed on the inner wall of the concrete storage section 111 as the stirring mechanism 113. The spiral structure is formed, for example, by arranging continuous plate-shaped members in a spiral shape inside the concrete bucket 110. The thickness and length of the plate-shaped members constituting the spiral structure and the spacing of the spirals can be arbitrarily set in consideration of the size of the concrete bucket 110, the mixing efficiency of the fresh concrete, and mechanical properties such as resistance when stirring the fresh concrete. The concrete storage section 111 and the stirring mechanism 113 may be formed of known materials, for example, steel, metal, alloy, resin, etc.

In this embodiment, the concrete bucket 110 is rotated in the axial direction with the line segment AA' as the axis. Here, when the line segment BB' cross section of the concrete bucket 110 is assumed to be a circle, the line segment AA' is an axis that passes through the center or approximate center of the circle and is parallel to the outer wall of the concrete storage section 111. Alternatively, the line segment AA' coincides or approximately coincides with the central axis of the spiral structure, or an axis that passes through the midpoint of the distance between two or more rotating bodies 160 arranged opposite to each other. By rotating the concrete bucket 110 in the axial direction, the fresh concrete stored in the concrete storage section 111 is moved by the stirring mechanism 113 from the bottom of the discharge outlet 115 side of the concrete storage section 111 to the opposite side, that is, toward the top of the concrete storage section 111. Therefore, the concrete bucket 110 is rotated in a direction in which the fresh concrete moves upward along the stirring mechanism 113. Note that in FIG. 4, it is counterclockwise, and the rotation direction of the concrete bucket 110 is set according to the orientation of the spiral structure. As a result, the aggregate with a high specific gravity contained in the ready-mixed concrete that has settled to the bottom of the concrete storage section 111 moves toward the top of the concrete storage section 111, stirring the ready-mixed concrete.

The discharge port 115 is a means for discharging the ready-mixed concrete from the concrete storage section 111, and has a controllable opening and closing mechanism. In one embodiment, an operator can use a controller connected to the opening and closing mechanism to control the opening and closing mechanism to discharge the ready-mixed concrete from the concrete storage section 111. The connection between the opening and closing mechanism and the controller may be a wired connection or a wireless connection.

In one embodiment, the concrete bucket 110 includes an inlet 112 for filling with ready-mixed concrete. The inlet 112 is an opening through which ready-mixed concrete can be poured. In one embodiment, a door may be provided at the inlet 112. By providing a door at the inlet 112, it is possible to prevent the ready-mixed concrete from unexpectedly leaking from the concrete bucket 110.

The frame 150 is disposed outside the concrete bucket 110 and supports the concrete bucket 110. Note that the frame 150 is merely an example, and is not limited to this as long as it has a shape that allows it to be transported by a hoist and allows ready mixed concrete to be poured into it. The frame 150 may be composed of a support section 151 that supports the concrete bucket 110, and a frame section 153 and legs 154 that support the support section 151. Note that while an example in which the drive section 170 is disposed in the support section 151 is shown in Figures 2 and 3, the drive section 170 may also be disposed in the frame section 153, and the arrangement is not particularly limited.

The support portion 151 has a shape that allows the concrete bucket 110 to be accommodated therein. In one embodiment, the support portion 151 may have a shape that conforms to the outer wall of the concrete bucket 110. The support portion 151 is not particularly limited as long as it has a shape that allows the concrete bucket 110 to be rotatably accommodated therein.

In one embodiment, the support portion 151 is preferably provided with a receiving portion 155 for receiving the ready-mixed concrete discharged from the discharge port 115 of the concrete bucket 110. The receiving portion 155 is disposed at a position on the support portion 151 opposite the discharge port 115 of the concrete bucket 110. The receiving portion 155 is preferably, for example, a cylindrical member having a funnel-like shape. From the viewpoint of rotating the concrete bucket 110, it is preferable that the receiving portion 155 has a predetermined distance from the discharge port 115 and does not come into contact with the discharge port 115.

The receiving portion 155 also has a connection portion 180 for connecting the hose 101. As a result, the ready-mixed concrete discharged from the discharge port 115 of the concrete bucket 110 is guided from the connection portion 180 to the hose 101 via the receiving portion 155. The connection portion 180 is not particularly limited as long as it has a structure that allows connection to the hose 101, and may be, for example, a screw-in type or may use a hook.

In one embodiment, the support portion 151 has an inlet 152 for filling the ready-mixed concrete. The inlet 152 is an opening through which ready-mixed concrete can be poured. The inlet 152 is disposed at a position on the support portion 151 corresponding to the inlet 112 disposed on the concrete bucket 110. In addition, the inlet 152 is preferably disposed on the side of the support portion 151 on which the frame portion 153 is not disposed. In one embodiment, a door may be disposed at the inlet 152.

In one embodiment, the support portion 151 is provided with an engagement portion 158 on the side opposite to the side on which the connection portion 180 is disposed, i.e., on the upper end of the support portion 151. The engagement portion 158 is a member for engaging a rope, chain, etc. when the concrete supply device 100 is hoisted by the hoist 10. The number of engagement portions 158 to be disposed on the support portion 151 is not particularly limited, but two or more, preferably four, can be disposed on the support portion 151, taking into consideration the balance when hoisting the concrete supply device 100.

5 is a schematic diagram of the concrete supply device 100 placed horizontally. The frame 153 is a structure that supports the support 151, and also functions as a protective member to prevent impact and damage caused by the support 151 and the like coming into contact with the floor when the concrete supply device 100 is laid on its side. In this specification, placing the concrete supply device "vertically" means placing the concrete supply device in a state where the rotation axis of the concrete bucket or the ready-mixed concrete is parallel or approximately parallel to the direction of gravity. Also, placing the concrete supply device "horizontally" means placing the concrete supply device in a state where the rotation axis of the concrete bucket or the ready-mixed concrete is perpendicular or approximately perpendicular to the direction of gravity. The frame 153 may be made of a known material such as steel, metal, alloy, or resin. In one embodiment, the above-mentioned engagement portion 158 may be placed on the frame 153.

In one embodiment, the legs 154 are rotatably connected to the frame 153 by the rotating part 159. The rotating part 159 functions as a rotation axis of the legs 154. The legs 154 rotate so that the side 154a of the legs 154 is located in the direction of gravity. As shown in FIG. 5, when the concrete supply device 100 is placed horizontally, the legs 154 are adjacent to the frame 153, and the side 154a is in contact with the ground or floor surface to support the support part 151 together with the frame 153. Also, as shown in FIG. 2, when the concrete supply device 100 is placed vertically, the legs 154 are in a position open from the frame 153, and the side 154a is in contact with the ground or floor surface to support the support part 151 and the frame 153.

In one embodiment, when fresh concrete is poured into the concrete supply device 100, the concrete supply device 100 is placed horizontally. In this case, the inlet 152 is located on the opposite side to the ground or floor, i.e., above the support part 151. Fresh concrete can be poured into the concrete storage part 111 of the concrete bucket 110 through the inlet 152 and the inlet 112 of the concrete bucket 110.

In one embodiment, when the concrete supply device 100 is transported by the hoist 10, and when fresh concrete is discharged from the concrete supply device 100 into the hose 101, the concrete supply device 100 is placed vertically. The fresh concrete can be stirred by rotating the concrete bucket 110 with the concrete supply device 100 placed vertically.

In one embodiment, the rotor 160 is arranged outside the concrete bucket 110 in close contact with the concrete bucket 110. For example, the rotation shaft 161 of the rotor 160 is arranged on the support part 151, and the rotor 160 rotates around the rotation shaft 161, thereby rotating the concrete bucket 110. The rotor 160 may be, for example, a roller-shaped member or a spherical member. The rotor 160 and the concrete bucket 110 may be provided with unevenness (gears, etc.) and engaged with each other. In addition, in order to support the concrete bucket 110 and provide smooth rotation, two or more, preferably four, rotors 160 can be arranged at the position of the support part 151 that is axially symmetrical with respect to the rotation shaft of the concrete bucket 110. In FIG. 2, an example is shown in which two sets of four rotors 160 are arranged above and below the support part 151, but the arrangement of the rotors 160 is not limited to this as long as the concrete bucket 110 can be rotated in the axial direction around the line segment AA' as an axis to stir the fresh concrete. For example, only one set of four rotating bodies 160 may be arranged, or two sets of two rotating bodies 160 may be arranged one above the other. In one embodiment, one or more rotating bodies 160 have a known driving mechanism such as a motor, and can rotate the concrete bucket 110.

In one embodiment, the support portion 151 may be provided with a driving portion 170 that is connected to the rotating body 160 via wiring 171. The driving portion 170 is a device that controls the rotational drive of the rotating body 160, and may have a control portion and further include a power source. The driving portion 170 may also be provided on the frame portion 153.

In this way, the drive unit 170 controls the rotational drive of the rotating body 160, thereby rotating the concrete bucket 110. The worker 20 can control the drive unit 170 via a controller to rotate the concrete bucket 110. The connection between the drive unit 170 and the controller may be a wired connection or a wireless connection.

In one embodiment, mixing of the ready-mixed concrete using the concrete supplying device 100 is preferably performed at least immediately before supplying the ready-mixed concrete to the concrete pouring location. In addition, the ready-mixed concrete may be filled from a concrete mixer into the concrete supplying device 100, and the concrete bucket 110 may be rotated to mix the ready-mixed concrete while the concrete supplying device 100 is being transported to the concrete pouring location. In this way, the concrete supplying device 100 according to one embodiment of the present invention can suppress separation of materials in the ready-mixed concrete supplied to the concrete pouring location.

[Embodiment 2]
In the above-mentioned embodiment, an example in which a concrete bucket having a spiral structure is used as the stirring mechanism has been described, but the stirring mechanism of the concrete supplying device according to the present invention is not limited to this. In this embodiment, an example in which a blade-shaped rotating part is provided as the stirring mechanism will be described. Fig. 6 is a schematic diagram showing a concrete supplying device 200 according to one embodiment of the present invention. The concrete supplying device 200 includes, for example, a concrete bucket 210 and a frame 250. Fig. 7 shows a cross-sectional view of the concrete supplying device 200 according to one embodiment of the present invention taken along line CC' in Fig. 6.

In one embodiment, the concrete bucket 210 includes a concrete storage section 211 and a discharge port 215 disposed at an end of the concrete storage section 211. The discharge port 215 has a connection section 280 for connecting the hose 101. The discharge port 215 has a controllable opening and closing mechanism. In one embodiment, the worker 20 can use a controller connected to the opening and closing mechanism to control the opening and closing mechanism to discharge the ready-mixed concrete from the concrete storage section 211. The connection between the opening and closing mechanism and the controller may be a wired connection or a wireless connection.

Inside the concrete storage section 211, a mixing mechanism 213 is arranged. The mixing mechanism 213 is a means for moving and mixing concrete from the side where the discharge port 215 of the concrete storage section 211 is arranged to the opposite side. In one embodiment, the concrete bucket 210 is equipped with a blade-like rotating part as the mixing mechanism 213. The blade-like rotating part is, for example, composed of a blade part 213a arranged inside the concrete bucket 210. That is, the mixing mechanism 213 is composed of a rotating shaft 213b and a plurality of blade parts 213a arranged radially at the end of the rotating shaft. The thickness and length of the blade part constituting the blade-like rotating part and the number of blades of the blade part 213a can be arbitrarily set in consideration of the size of the concrete bucket 210, the mixing efficiency of the fresh concrete, the mechanical properties such as resistance when mixing the fresh concrete, etc. In addition, the concrete storage section 211 and the mixing mechanism 213 may be composed of known materials, for example, steel, metal, alloy, resin, etc.

In this embodiment, by rotating the stirring mechanism 213, the ready-mixed concrete contained in the concrete containing section 211 moves from the bottom of the discharge port 215 side of the concrete containing section 211 to the opposite side, i.e., toward the top of the concrete containing section 211. As a result, the aggregate with a high specific gravity contained in the ready-mixed concrete that has settled to the bottom of the concrete containing section 211 moves toward the top of the concrete containing section 211, stirring the ready-mixed concrete.

The discharge outlet 215 is a means for discharging the ready-mixed concrete from the concrete storage section 211, and has a controllable opening and closing mechanism. Using a controller connected to the opening and closing mechanism, the worker 20 can control the opening and closing mechanism to discharge the ready-mixed concrete from the concrete storage section 211. The connection between the opening and closing mechanism and the controller may be a wired connection or a wireless connection.

In one embodiment, the concrete bucket 210 has an inlet 212 for filling with ready-mixed concrete. The configuration of the inlet 212 can be the same as that of the inlet 112, so a detailed description is omitted.

The frame 250 is disposed outside the concrete bucket 210 and supports the concrete bucket 210. In the concrete supply device 200 of embodiment 2, it is not necessary to rotate the concrete bucket 210 itself. Therefore, it is not necessary to support the concrete bucket 210 with the support portion described in embodiment 1. Therefore, the frame 250 only needs to include a frame portion 253 and a leg portion 254 rotatably connected to the frame portion 253 by a rotating portion 259.

The frame 253 directly supports the concrete bucket 210 without a support. A drive unit 270 is disposed on the upper part of the frame 253. The drive unit 270 is a device that is connected to the mixing mechanism 213 and rotates the mixing mechanism 213. The drive unit 270 includes a control unit and may have a drive mechanism such as a known motor or generator. In one embodiment, an engagement unit 258 is provided on the side opposite to the side on which the connection unit 280 is disposed, that is, on the upper end of the frame 253. The configuration of the engagement unit 258 may be the same as the configuration of the engagement unit 158, and detailed description will be omitted. The configurations of the legs 254 and the rotating unit 259 may also be the same as the configurations of the legs 154 and the rotating unit 159, and detailed description will be omitted.

In one embodiment, when fresh concrete is poured into the concrete supply device 200, the concrete supply device 200 is placed horizontally. In this case, the inlet 212 is located on the opposite side to the ground or floor, i.e., on the upper side of the concrete bucket 210. Fresh concrete can be poured into the concrete storage section 211 of the concrete bucket 210 through the inlet 212.

In one embodiment, when the concrete supply device 200 is transported by the hoist 10, and when ready-mixed concrete is discharged from the concrete supply device 200 into the hose 101, the concrete supply device 200 is placed vertically. The ready-mixed concrete can be stirred by rotating the stirring mechanism 213 while the concrete supply device 200 is placed vertically.

In one embodiment, mixing of the ready-mixed concrete using the concrete supplying device 200 is preferably performed at least immediately before supplying the ready-mixed concrete to the concrete pouring location. In addition, the ready-mixed concrete may be filled from a concrete mixer into the concrete supplying device 200, and the mixing mechanism 213 may be rotated to mix the ready-mixed concrete while the concrete supplying device 200 is being transported to the concrete pouring location. In this way, the concrete supplying device 200 according to one embodiment of the present invention can suppress material separation of the ready-mixed concrete supplied to the concrete pouring location.

[Embodiment 3]
As a third embodiment, an example in which the concrete supplying apparatus 100 of the first embodiment and the concrete supplying apparatus 200 of the second embodiment are combined will be described. Fig. 8 is a schematic diagram showing a concrete supplying apparatus 300 according to one embodiment of the present invention. Fig. 9 shows a cross-sectional view of the concrete supplying apparatus 300 taken along line segment AA' in Fig. 8. Fig. 10(a) shows a cross-sectional view of the concrete bucket 310 taken along line segment AA' in Fig. 8, and Fig. 10(b) shows a cross-sectional view of the concrete bucket 310 taken along line segment BB' in Fig. 10(a).

The concrete supply device 300 includes, for example, a concrete bucket 310 and a frame 350. In one embodiment, the concrete bucket 310 includes a concrete storage section 311 and a discharge port 315 disposed at the end of the concrete storage section 311. Inside the concrete storage section 311, a stirring mechanism 313 having a spiral structure is disposed. The stirring mechanism 313 may have a configuration similar to that of the stirring mechanism 113, and a detailed description thereof will be omitted. Inside the concrete storage section 311, a stirring mechanism 319 having a blade-shaped rotating section is disposed. The stirring mechanism 319 includes a blade section 319a and a rotating shaft 319b, and may have a configuration similar to that of the stirring mechanism 213, and a detailed description thereof will be omitted.

In this embodiment, the concrete bucket 310 is rotated in the axial direction around the line segment AA', so that the mixed concrete contained in the concrete storage section 311 is moved by the stirring mechanism 313 from the bottom of the discharge port 315 side of the concrete storage section 311 to the opposite side, i.e., toward the top of the concrete storage section 311. At this time, the mixed concrete can be further stirred by rotating the stirring mechanism 319 in the opposite direction to the rotation direction of the stirring mechanism 313. As a result, the aggregate with a high specific gravity contained in the mixed concrete that has settled to the bottom of the concrete storage section 311 moves toward the top of the concrete storage section 311, stirring the mixed concrete. Note that the rotation axis of the concrete bucket 310 and the rotation axis 319b of the stirring mechanism 319 do not necessarily have to coincide, but it is preferable that they do.

The discharge outlet 315 is a means for discharging the ready-mixed concrete from the concrete storage section 311, and has a controllable opening and closing mechanism. The discharge outlet 315 may have a configuration similar to that of the discharge outlet 115, and a detailed description thereof will be omitted.

In one embodiment, the concrete bucket 310 has an inlet 312 for filling with ready-mixed concrete. The inlet 312 may have a configuration similar to that of the inlet 112, and a detailed description thereof will be omitted.

The frame 350 is disposed outside the concrete bucket 310 and supports the concrete bucket 310. The frame 350 is merely an example, and is not limited to this as long as it has a shape that allows it to be transported by a hoist and allows ready mixed concrete to be poured into it. The frame 350 may be composed of a support section 351 that supports the concrete bucket 310, and a frame section 353 and legs 354 that support the support section 351. Although an example in which the drive section 370 is disposed in the support section 351 is shown in FIG. 8 and FIG. 9, the drive section 370 may be disposed in the frame section 353, and the arrangement is not particularly limited. In addition, a drive section 375 is disposed on the upper part of the frame section 353. The drive section 375 is a device that is connected to the stirring mechanism 319 and rotates the stirring mechanism 319.

The support section 351 may have a configuration similar to that of the support section 151, and detailed description thereof will be omitted. In addition, the discharge port 315, the input port 352, the receiving section 355, and the connection section 380 arranged in the support section 351 may have a configuration similar to that of the discharge port 115, the input port 152, the receiving section 155, and the connection section 180, and detailed description thereof will be omitted.

In one embodiment, an engagement portion 358 may be disposed on the frame portion 353. The engagement portion 358 may have a configuration similar to that of the engagement portion 258, and a detailed description thereof will be omitted. In addition, the leg portion 354 may have a configuration similar to that of the leg portion 154, and a detailed description thereof will be omitted.

In one embodiment, when fresh concrete is poured into the concrete supply device 300, the concrete supply device 300 is placed horizontally. In this case, the inlet 352 is located on the opposite side to the ground or floor, i.e., above the support portion 351. Fresh concrete can be poured into the concrete storage portion 311 of the concrete bucket 310 via the inlet 352 and the inlet 312 of the concrete bucket 310.

In one embodiment, when the concrete supply device 300 is transported by the hoist 10, and when fresh concrete is discharged from the concrete supply device 300 into the hose 101, the concrete supply device 300 is placed vertically. With the concrete supply device 300 placed vertically, the concrete bucket 310 is rotated, and the mixing mechanism 319 is rotated in the opposite direction to the rotation direction of the concrete bucket 310, thereby mixing the fresh concrete.

In one embodiment, a rotating body 360 is disposed outside the concrete bucket 310 in close contact with the concrete bucket 310. The rotating body 360 may have a configuration similar to that of the rotating body 160, and a detailed description thereof will be omitted. In addition, a driving unit 370 connected to the rotating body 360 via a wiring 371 may be disposed on the support portion 351. The driving unit 370 and the wiring 371 may have a configuration similar to that of the driving unit 170 and the wiring 171, and a detailed description thereof will be omitted.

In one embodiment, mixing of the ready-mixed concrete using the concrete supply device 300 is preferably performed at least immediately before supplying the ready-mixed concrete to the concrete pouring location. The ready-mixed concrete may also be mixed by rotating the concrete bucket 310 and the mixing mechanism 319 while filling the concrete supply device 300 from the concrete mixer and transporting the concrete supply device 300 to the concrete pouring location. In this way, the concrete supply device 300 according to one embodiment of the present invention can suppress separation of materials in the ready-mixed concrete supplied to the concrete pouring location.

[How ready-mixed concrete is transported]
A method for transporting ready mixed concrete will be described with reference to Fig. 1. As described in the first embodiment, at least two, preferably four, engagement parts 158 are arranged on the upper end of the frame 150, i.e., on the side opposite to the side where the hose 101 is arranged. For example, a hook, rope, or chain can be engaged with the engagement parts 158, and the concrete supply device 100 can be transported to a concrete pouring site by a hoist or the like.

In another embodiment, the concrete bucket can be used to transport ready-mixed concrete. Figure 11 is a schematic diagram showing a method of transporting ready-mixed concrete in a concrete supply device 400 according to one embodiment of the present invention. In Figure 11, two or more, preferably four, engagement parts 418 are arranged on the upper end of the concrete bucket 410, i.e., on the side opposite to the side where the discharge port 415 is arranged. For example, ready-mixed concrete is poured into the concrete storage part 411 from the inlet 412 of the horizontally placed concrete bucket 410. A hook, rope, or chain can be engaged with the engagement parts 418, and the concrete bucket 410 can be transported by a hoist to a frame 450 arranged at the concrete pouring location, and the concrete bucket 410 can be placed on the frame 450.

The outlet 415, frame 450, support portion 451, frame portion 453, receiving portion 455, engagement portion 459, rotating body 460, drive portion 470, and connection portion 480 may have the same configuration as the outlet 115, frame 150, support portion 151, frame portion 153, receiving portion 155, engagement portion 159, rotating body 160, drive portion 170, and connection portion 180, and detailed description thereof will be omitted.

Figure 12 is a schematic diagram showing a method of transporting ready-mixed concrete in a concrete supply device 500 according to one embodiment of the present invention. In Figure 12, two or more, preferably four, engagement parts 518 are arranged on the upper end of the concrete bucket 510, i.e., on the side opposite to the side where the discharge port 515 is arranged. For example, ready-mixed concrete is poured into the concrete storage part 511 from the inlet 512 of the horizontally placed concrete bucket 510. By engaging a hook, rope, or chain with the engagement parts 518, the concrete bucket 510 can be transported by a hoist to a frame 550 arranged at the concrete pouring location, and the concrete bucket 510 can be placed on the frame 550.

The frame 550 includes a support portion 551, a frame portion 553, legs 554, and a drive unit support portion 559. The frame portion 553 and the drive unit support portion 559 include a rotation mechanism 257 that rotatably holds them. By including the rotation mechanism 557, the drive unit 570 can be separated from the mixing mechanism 513, and the concrete bucket 510 can be moved in and out of the support portion 551.

The concrete bucket 510, mixing mechanism 513, discharge port 515, support 551, frame 553, receiving portion 555, drive unit 570 and connection portion 580 may have the same configuration as the concrete bucket 210, mixing mechanism 213, discharge port 215, support 251, frame 253, receiving portion 255, drive unit 270 and connection portion 280, and detailed description will be omitted.

[Modifications of the Supporting Part]
The support portion described in the above embodiment has a wall along the outer wall of the concrete bucket and is configured to cover at least the entire side surface of the concrete bucket, but the configuration of the support portion is not limited to this. Fig. 13 is a schematic diagram illustrating a support portion 651 according to one modified example.

Figure 13 shows an example corresponding to the support section 151 described in embodiment 1. For simplicity, Figure 13 shows a configuration in which a concrete bucket 610 is accommodated in the support section 651, and a rotating body 660 and a connecting section 680 are arranged, and the configuration of the drive section and the like is omitted. The support section 651 is configured by combining multiple short cylindrical structures 61 with a connecting member 65. Therefore, an opening 67 exists between the two cylindrical structures 61. Therefore, the support section 651 can be made lighter. As the other configurations can be the same as those of the concrete supply device 100, detailed explanations are omitted. In addition, this modified example can be applied to any of the above-mentioned embodiments and modified examples.

The above-described embodiments of the present invention may be combined as appropriate to the extent that they are not mutually inconsistent. Furthermore, those in which a person skilled in the art has appropriately added or removed components or modified designs, or added or omitted steps or modified conditions based on the respective embodiments, are also included within the scope of the present invention as long as they include the gist of the present invention.

Even if there are other effects and advantages different from those provided by the above-mentioned embodiments, if they are clear from the description in this specification or can be easily predicted by a person skilled in the art, they are naturally understood to be provided by the present invention.

10 Hoist, 20 Worker, 20 Worker, 41 Cylindrical structure, 45 Joint member, 47 Opening, 50 Building, 61 Structure, 65 Joint member, 67 Opening, 100 Concrete supply device, 101 Hose, 110 Concrete bucket, 111 Concrete storage section, 112 Inlet, 113 Mixing mechanism, 115 Discharge outlet, 150 Frame, 151 Support section, 152 Inlet, 153 Frame section, 154 Leg section, 154a Side, 155 Receiving section, 158 Engagement section, 159 Engagement section, 159 Rotating section, 160 Rotating body, 161 Rotating shaft, 170 Drive section, 171 Wiring, 180 Connection section, 200 Concrete supply device, 210 Concrete bucket, 211 Concrete storage section, 212 Inlet, 213 Mixing mechanism, 213a, wing portion, 213b, rotating shaft, 215, discharge port, 250, frame, 251, support portion, 253, frame portion, 254, leg portion, 255, receiving portion, 257, rotating mechanism, 258, engagement portion, 259, drive unit support portion, 259, rotating portion, 270, drive unit, 280, connection portion, 280, connection portion, 300, concrete supply device, 310, concrete bucket, 311, concrete storage portion, 312, inlet, 313, mixing mechanism, 315, discharge port, 319, mixing mechanism, 219a, wing portion, 219b, rotating shaft, 350, frame, 351, support portion, 352, inlet, 353, frame portion, 354, leg portion, 355, receiving portion, 358, engagement portion, 359, drive unit support portion, 360, rotating body, 370 Driving unit, 371 Wiring, 375 Driving unit, 380 Connection unit, 400 Concrete supply device, 410 Concrete bucket, 411 Concrete storage unit, 412 Inlet, 415 Discharge port, 418 Engagement unit, 450 Frame, 451 Support unit, 453 Frame unit, 455 Receiving unit, 459 Engagement unit, 460 Rotating body, 470 Driving unit, 480 Connection unit, 500 Concrete supply device, 510 Concrete bucket, 511 Concrete storage unit, 512 Inlet, 513 Mixing mechanism, 515 Discharge port, 518 Engagement unit, 550 Frame, 551 Support unit, 553 Frame unit, 554 Leg unit, 555 Receiving unit, 557 Rotating mechanism, 559 Driving unit support unit, 570 Driving unit, 580 Connection unit, 610 Concrete bucket, 651 Support part, 660 Rotating body, 680 Connection part

Claims (5)

A concrete bucket including a concrete container, a discharge port disposed in the concrete container, and a mixing mechanism for moving and mixing concrete from the side where the discharge port is disposed to the opposite side;
a frame disposed on the concrete bucket and supporting the concrete bucket,
The frame includes a support portion, a frame portion that supports the support portion, a leg portion, and a rotating portion, or includes a frame portion that directly supports the concrete bucket without using the support portion, the leg portion, and the rotating portion,
The support portion has a shape capable of accommodating the concrete bucket therein and supports the concrete bucket,
the legs are rotatably connected to the frame;
The rotating portion rotatably connects the leg portion to the frame portion ,
the concrete supply device further comprises a drive arranged outside the concrete bucket for rotating the concrete bucket; or
The concrete supply device further includes a rotating body that is arranged in close contact with the concrete bucket outside the concrete bucket, and a drive unit that rotates the rotating body, and the concrete bucket is rotated by rotating the rotating body. The concrete supply device according to claim 1, wherein the mixing mechanism comprises a spiral structure arranged on the inner wall of the concrete storage section. The concrete supply device according to claim 1 or 2, wherein the mixing mechanism includes a blade-shaped rotating part disposed in the concrete storage section. The concrete supply device according to claim 3, further comprising a drive unit arranged outside the concrete bucket and rotating the wing-shaped rotating unit. The frame is disposed on the discharge port side of the concrete bucket and includes a receiving portion for connecting to a hose;
5. The concrete supplying device according to claim 1 , wherein the receiving portion guides the concrete discharged from the discharge port to the hose.

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