JPH0512479U - Concrete bucket - Google Patents

Abstract

(57) [Summary] [Purpose] The direction of the opening can be changed with respect to the mounting position of the transfer means, etc., and concrete can be placed in a narrow portion such as a bank diversion wall. Providing concrete buckets. [Structure] An outer frame 25 supported by the transfer means, and a bucket body 27 that is rotatably arranged inside the outer frame 25 around a vertical axis and has an open upper part and an openable and closable opening at the lower part. Equipped with.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a concrete bucket suitable for use in dam construction work and the like.

[0002]

[Prior Art]

 In the dam construction work, as shown in Fig. 1, the cable crane 1 is laid across both sides of the dam, and the concrete bucket 3 filled with concrete is transferred to a predetermined place by the cable crane 1 and then the predetermined position. At this point, the lower opening of the concrete bucket 3 is opened and concrete is poured. As shown in the plan view of FIG. 3, the concrete bucket 3 generally has a vertically long opening 5 at the bottom thereof, and the opening 5 is opened and closed by an opening / closing device. An opening 7 is provided on the outer periphery of the concrete bucket 3 for maintenance of the opening / closing device, the skirt rubber and the like. The concrete is put into the concrete bucket 3 by using the transfer car 9 or the like on the side of the dam.

FIG. 2 shows a front view of a transfer car and a concrete bucket portion. The transfer car 9 runs on a bunker line 11 laid on the side of the dam, and this bunker line 11 is generally a cable crane. The H steel 13 for locating the concrete bucket is laid in a direction intersecting with the traveling wire 1A (see FIG. 1) (for example, a direction orthogonal to the one), and in parallel with the bunker wire 11. The transfer car 9 is composed of a trolley 901 equipped with wheels that engage with the bunker wire 11, and a vessel (hopper) 903 tiltably supported by the trolley 901. Concrete is put into the vessel 903. Then, the transfer car 9 in which the concrete is stored in the vessel 903 travels along the bunker line 11, while the concrete bucket 3 transferred by the cable crane 1 comes into contact with the H steel 13 and is placed on the bunker line 11. It is positioned. Then, the transfer car 9 is brought close to the positioned concrete bucket 3 and stopped, and concrete is poured into the concrete bucket 3 from the vessel 903.

[0004]

[Problems to be solved by the device]

 For this reason, the attachment position of the suspension wire 1B to the concrete bucket 3 is limited due to the relationship between the open portion 7 of the concrete bucket 3 and the H steel 13, and as a result, the orientation of the opening 5 is inevitably increased (running). The angle formed by the longitudinal direction of the opening 5 with respect to the extending direction of the working wire 1A was limited. Therefore, for example, when concrete is placed in a narrow portion such as a dike diversion wall, the longitudinal direction of the opening 5 cannot be aligned with the narrow portion, and the concrete to be placed should be placed. There was a problem that the end of the opening 5 was detached from the location to the outside. The present invention has been devised in view of the above circumstances, and an object of the present invention is to provide a concrete bucket in which the direction of the opening can be changed with respect to the opening, the mounting position of the hanging wire, and the like. It is in.

[0005]

[Means for Solving the Problems]

 In order to achieve the above object, a concrete bucket according to the present invention is provided with an outer frame supported by a transfer means and a rotatable inside the outer frame around a vertical axis, and has an open upper part. A bucket body having an opening portion that can be opened and closed is provided at a lower portion.

[0006]

【Example】

 Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 4 is a sectional front view of the concrete bucket 23 according to the embodiment. The concrete bucket 23 includes an outer frame 25 and a bucket body 27 arranged inside the outer frame 25. The outer frame 25 is provided with a cylindrical outer peripheral surface portion 25A, an open portion for maintenance is formed at an appropriate portion of the outer peripheral surface portion 25A as in the conventional case, and the outer peripheral surface portion 25A has two upper end portions facing each other. Is provided with a connecting piece 25B connected to the hanging wire 1B. Further, on the inner surface of the outer peripheral surface portion 25A, a conical surface portion 25C that is inclined downward is formed at an intermediate portion in the height direction thereof.

The bucket body 27 has an upper cylindrical portion 27A arranged inside the upper portion of the outer peripheral surface portion 25A, a conical surface portion 27B connected to the lower end of the upper cylindrical portion 27A, and a lower end connected to the lower end of the conical surface portion 27B. And a lower cylindrical portion 27C extending to the. The bucket body 27 is disposed inside the outer frame 25 with its conical surface portion 27B placed on the conical surface portion 25C of the outer frame 25. By this incorporation, the central axis extending in the vertical direction of the outer frame 25 and the bucket body It is aligned with a central axis extending in the vertical direction of 27, and the bucket body 27 is rotatable with respect to the outer frame 25 about the central axis. A vertically long opening is formed at the bottom of the lower cylindrical portion 27C, and this opening is opened and closed by a similar opening and closing device 29 attached to the outside of the lower cylindrical portion 27C.

The present embodiment is configured as described above, and the concrete bucket 23 is composed of an outer frame 25 suspended by the cable crane 1 and a bucket body 27 rotatable with respect to the outer frame 25. Since it is configured, the direction of the opening (longitudinal direction of the opening) can be changed with respect to the opening, the mounting position of the hanging wire, etc., and concrete can be applied to narrow parts such as dike diversion walls. In the case of placing, concrete can be placed within a predetermined width by aligning the longitudinal direction of the opening with the narrow portion. Note that, for example, as shown in FIG. 4, the bucket body 27 is rotated by lifting the bucket body 27 by an amount H relative to the outer frame 25 and separating the two mounting surfaces 25C and 27B from each other. It may be rotated, or a drive mechanism composed of a gear or the like may be provided, and the bucket body 27 may be rotated by this drive mechanism.

[0009]

As is apparent from the above description, according to the present invention, the concrete bucket is constituted by the outer frame supported by the transfer means and the bucket body rotatable with respect to the outer frame. The direction of the opening can be changed with respect to the opening, the mounting position of the transfer means, etc., and it becomes possible to pour concrete into a narrow portion such as a dike trace wall.

[Brief description of drawings]

FIG. 1 is a relationship diagram between a cable crane and a concrete bucket.

FIG. 2 is a front view of a transfer car and a concrete bucket.

FIG. 3 is a plan view of a concrete bucket.

FIG. 4 is a sectional front view of a concrete bucket according to the present invention.

[Explanation of symbols]

 1 Cable crane 3,23 Concrete bucket 9 Transfer car 25 Outer frame 27 Bucket body

Claims (1)

[Scope of utility model registration request] 1. An outer frame supported by a transfer means, and disposed inside the outer frame so as to be rotatable around a vertical axis,
A concrete bucket, comprising: a bucket body having an open upper portion and an opening portion that can be opened and closed at a lower portion.