JPH0540507U - Concrete pouring equipment - Google Patents

Abstract

(57) [Abstract] [Purpose] It is possible to place concrete in a required range stably and efficiently even on the bar arrangement. [Structure] A rail 2 arranged on a bar arrangement and movable, a movable base 1 movable along the rail 2, and a hose holder 8 rotatably attached to the movable base 1.
A base 29 serving as a swivel center of the casting pipe, which supports a stretchable casting pipe 11 slidably supported by the hose holder 8 and a pipe 27 connecting the casting pipe 11 and a concrete supply source. And is provided.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a concrete pouring device that moves on a slab reinforcement before concrete pouring to perform concrete pouring.

[0002]

[Prior Art]

 When building concrete on a large floor surface in building construction, etc., a reinforcing bar is placed on the slab and concrete is placed on the reinforcing bar to level the concrete surface.

Conventionally, after arranging the concrete, the concrete is mainly placed depending on the human power, and then the flattening concrete surface is formed by flattening the concrete by a leveling machine or manually. Relying on manpower for the work to place is not only low in work efficiency, but also works on the bar arrangement, so there is a problem in terms of safety.

Therefore, as a method of pouring the concrete by mechanical means, a base of a bending arm in which a plurality of arms are connected by joints so as to be bendable in a horizontal plane is supported on a base, and this bending is performed. A flexible concrete supply pipe is arranged along the arm, and the bending arm is bent so that the tip of the concrete supply pipe is located at a desired position on the floor surface, and concrete is poured. There is something.

[0005]

[Problems to be solved by the device]

 However, according to the above-mentioned conventional technique, concrete can be placed at any desired location without being damaged by the reinforcement even on the reinforced floor, but the bending arm is cantilevered. The support of the base is loaded with the total weight of the bending arm, the concrete supply pipe attached to it, and the weight of the concrete existing in this pipe. The structure of the joints has to be extremely strong, and there is the problem that the entire device becomes large and heavy.

In view of this, the present invention has a concrete striking method which can simplify the construction and can pour concrete in a required range in a stable state even on a bar arrangement. The purpose of the invention is to provide an installation device.

[0007]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems of the conventional technology, the present invention provides a movable rail installed on a bar, a movable base movable along the rail, and a movable base movable on the movable base. The hose holder attached, the stretchable casting pipe slidably supported by the hose holder, and the pipe connecting the casting pipe and the concrete supply source are supported to support the turning center of the casting pipe. It is characterized by including a base.

[0008]

[Action]

 Place a rail on the bar and place a moving table on it to extend the casting pipe and place concrete in the required area. The mobile platform is run to set the next area. At this time, the hose holder swivels and follows the moving base, and the driving pipe extends and follows. In this way, when the placement of the concrete in the area over the entire length of the rail is completed, the rail is moved to the next area, and the placement work is performed in the same manner, so that the placement of the entire area on the bar arrangement can be performed.

[0009]

【Example】

 Hereinafter, the present invention will be described with reference to the embodiments shown in the drawings.

The moving table 1 is capable of moving on a rail 2 arranged on the bar arrangement assembled on the surface such as the floor surface. The figure shows a case in which the rail is mounted over one rail 2 having a sled 3 that can slide by applying a force of a certain value or more, and the front and rear axles 4 and 4 have bearing portions 5, The wheels 4, 4 are rotatably supported by the motor 5, and are driven by the traveling motors 6, 6.

A bearing cylinder 7 having a vertical axis is fixedly provided in the center of the movable table 1, and a shaft portion 9 projecting from the lower surface of the hose holder 8 is fitted to the bearing cylinder 7 to form a bearing 10. It is rotatably supported by 10.

The hose holder 8 has a lower portion between the side frames 12 and 12 which are erected at intervals so that the driving pipe 11 can be fitted as closely as possible. Two rollers 13 and 13 are rotatably supported by bearings 14 and 14, and a pair of left and right rollers 15 and 15 having a tapered peripheral surface are provided at the upper part between the side frames 12 and 12 as front and rear sets. The rollers 15 and 15 of each set are rotatably supported by bearings 16 and 16 and have a space in the axial direction, and pinions 17 and 17 are fixed on the shaft between the rollers 15 and 15. The pinions 17 and 17 are rotatably driven by driving pipe expansion and contraction motors 18 and 18, respectively.

The casting pipe 11 has a linear fitting structure portion 21 of an outer cylinder 19 made of a coin material and an inner cylinder 20 slidably fitted into the outer cylinder 19 and expanding and contracting. However, the fitting structure portion 21 is sandwiched between the receiving roller 13 and the rollers 15 and 15 of the hose holder 8, and the outer cylinder 19 has a substantially entire length in the longitudinal direction of the upper surface thereof. A rack 22 is fixedly mounted, and the pinions 17, 17 are meshed with the rack 22.

As shown in FIG. 2, a tip end of the outer cylinder 19 is vertically bent, and a bending tube 24 is connected to an upper end of the outer tube 19 via a rotary joint 23, and a nozzle 25 is connected to the bending tube 24. The bending tube 24 is supported by a support leg 27 having a sliding plate 26 at the lower end.

A pipe 27 connected to a concrete supply source (not shown) is connected to the upright portion 20a at the rear end of the inner cylinder 20 via a rotary joint 28, and the rotary joint 28 portion is a base 29. It is supported by the column 30 and the entire casting pipe 11 can be swung about the rotary joint 28 as the center of rotation.

Next, the operation of the above embodiment will be described.

The rail 2 is installed on the bar arrangement incorporated on the floor surface, and the wheels 4 and 4 of the movable table 1 are engaged with the rail 2 near one end thereof (state shown by the solid line in FIG. 1). Thus, when the fresh concrete is supplied from the concrete supply source, the fresh concrete is blown from the pipe 27 through the linear structure portion 21 of the casting pipe 11 and the bending pipe 24 from the nozzle 25 onto the bar arrangement, and the casting is performed. When the nozzle 25 is swung at the rotary joint 24 portion (circle shown by one point in FIG. 1) at the time of this pouring, concrete can be poured in a predetermined range around the rotary joint 24.

Next, when the expansion / contraction motors 18 and 18 are driven, the pinions 17 and 17 rotate, and the outer cylinder 19 slides on the hose holder 8 via the rack 22 that meshes with the pinion 17 and 17 to extend the outer cylinder 19 and The setting range is changed to perform the setting, and the setting is performed from the area (a) to the area (b) shown in FIG. On the other hand, in order to shift the driving range to the side, the traveling motors 6, 6 are driven to rotate the wheels 4, 4, and the movable table 1 is caused to travel on the rail 2 (reference numeral (c) in FIG. 1). , (D), the driving pipe 11 turns around the base 29 to expand the driving range.

When the placement of the rail 2 in the region over the entire length is completed, the rail 2 is slid on the bar arrangement by a wire, a winch or the like, and the placement of the next new region is started.

In the above-mentioned placement, the nozzle 25 can be positioned at an arbitrary position by the combined drive of the expansion / contraction motors 18 and 18 and the traveling motors 6 and 6, and the operation can be performed efficiently according to the site. Can be set up.

A rubber hose 31 may be connected to the tip end side of the outer cylinder 19 of the casting pipe 11 as shown in FIG. 7 so that fresh concrete can be blown out from the tip end of the rubber hose 31. Is optional. Further, the expansion and contraction operation of the driving pipe 11 may be performed by the frictional force of the rollers 15 and 15 as well as the rack 22 and the pinion 17. Furthermore, the nozzle 25 is not limited to manual rotation, but may be rotated by drive means.

[0022]

[Effect of the device]

 As described above, according to the present invention, a movable rail is installed on the bar arrangement, a movable table is movably provided on this rail, and the hose holder rotatably attached to the movable table is extendable and retractable. Since the casting pipe is supported slidably and can be swiveled around the base, the weight of the entire equipment including the weight of concrete being supplied is received by the moving base and the base. Therefore, even if the strength of the structure of each part is reduced, the object can be sufficiently achieved, and the structure of the entire device can be significantly reduced in weight. Moreover, since the movable table is placed on the bar arrangement via the rail, the bar is not damaged by the load, so that concrete can be poured with high efficiency.

[Brief description of drawings]

FIG. 1 is a plan view showing an operating condition of an embodiment of a concrete placing device according to the present invention.

FIG. 2 is a side view when the driving pipe is contracted.

FIG. 3 is a side view of the same in an extended state.

FIG. 4 is an enlarged plan view of a portion A in FIG.

FIG. 5 is a vertical sectional side view of the same.

FIG. 6 is a vertical sectional front view of the same.

FIG. 7 is a side view showing a modified example of the driving pipe.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Moving stand 2 Rail 4 Wheel 6 Traveling motor 8 Hose holder 11 Placing pipe 12 Side frame 13 Receiving roller 15 Roller 17 Pinion 18 Placing pipe expanding / contracting motor 19 Outer cylinder 20 Inner cylinder 21 Fitting structure 22 Rack 23 Rotation Joint 25 Nozzle 28 Rotary Joint 29 Base

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Minoru Ochiai 8-21-1, Ginza, Chuo-ku, Tokyo Stock company Takenaka Corporation Tokyo Main Store (72) Creator Kazuo Yamazaki Amado-cho, Chiba, Chiba 1293 Sanwa Equipment Co., Ltd. Chiba factory

Claims (1)

[Scope of utility model registration request] 1. A rail that is installed on a bar arrangement and is movable, a movable base that is movable along the rail, a hose holder that is rotatably attached to the movable base, and a slide on the hose holder. A stretchable casting pipe that is movably supported,
A concrete placing apparatus, comprising: a base that supports a pipe connecting the placing pipe and a concrete supply source and serves as a turning center of the placing pipe.