WO1986004633A1 - Machine de finition de plancher en beton - Google Patents

Machine de finition de plancher en beton Download PDF

Info

Publication number
WO1986004633A1
WO1986004633A1 PCT/JP1986/000041 JP8600041W WO8604633A1 WO 1986004633 A1 WO1986004633 A1 WO 1986004633A1 JP 8600041 W JP8600041 W JP 8600041W WO 8604633 A1 WO8604633 A1 WO 8604633A1
Authority
WO
WIPO (PCT)
Prior art keywords
finishing
concrete floor
concrete
floor
devices
Prior art date
Application number
PCT/JP1986/000041
Other languages
English (en)
Japanese (ja)
Inventor
Kimio Kikuchi
Toshiyuki Ohshita
Takayoshi Imai
Shigeru Yamada
Original Assignee
Kabushiki Kaisha Takenaka Komuten
Sanwa Kizai Kabushiki Kaisha
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP1970985A external-priority patent/JPS61179957A/ja
Priority claimed from JP20097785A external-priority patent/JPS6263760A/ja
Application filed by Kabushiki Kaisha Takenaka Komuten, Sanwa Kizai Kabushiki Kaisha filed Critical Kabushiki Kaisha Takenaka Komuten
Publication of WO1986004633A1 publication Critical patent/WO1986004633A1/fr

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F21/00—Implements for finishing work on buildings
    • E04F21/20—Implements for finishing work on buildings for laying flooring
    • E04F21/24—Implements for finishing work on buildings for laying flooring of masses made in situ, e.g. smoothing tools
    • E04F21/245—Rotary power trowels, i.e. helicopter trowels
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F21/00—Implements for finishing work on buildings
    • E04F21/20—Implements for finishing work on buildings for laying flooring
    • E04F21/24—Implements for finishing work on buildings for laying flooring of masses made in situ, e.g. smoothing tools
    • E04F21/245—Rotary power trowels, i.e. helicopter trowels
    • E04F21/248—Rotary power trowels, i.e. helicopter trowels used by an operator walking behind the trowel, i.e. walk-behind power trowels

Definitions

  • the present invention is intended to construct a floor covering, such as an indoor floor finishing material, with a mortar underlay on a concrete floor slab.
  • a floor covering such as an indoor floor finishing material
  • the concrete floor surface is compacted after casting the concrete and after removing the moisture that has oozed out on the surface.
  • the present invention relates to a concrete floor finisher for smoothing a floor.
  • a finishing device for smoothing the surface of the semi-solid concrete floor is connected to the outside of the traveling device via a connecting mechanism, and the finishing device is mounted around the traveling device.
  • TECHNICAL FIELD The present invention relates to a concrete floor finishing machine provided with a drive mechanism for rotating a concrete floor.
  • the plasterer has conventionally used a trowel to check the solidification state of the concrete-to-floor surface, or to finish the concrete.
  • finishing irons which are rotated by the engine provided in the building, are grounded on the concrete floor surface, and the worker extends the handle extended from the body and finishes the work.
  • finishing machine trade name: troll
  • iron finishing of plasterers is performed.
  • the plasterer's skill is required in any case, and especially in winter, concrete solidification is slow, so that work tends to take a long time. Conditions may be severe.
  • the finishing machine when the finishing machine is steered, the main body is tilted with the handle while the finishing iron is grounded, and the ground reaction force of the finishing iron is grounded. Since the steering operation is performed, the steering operation is difficult, and the concrete surface is easily damaged during steering. Furthermore, the engine vibration is transmitted to the worker, and if the worker continues working for a long time, the fatigue of the worker may increase.
  • concrete floor finishing be performed by a finishing device attached to a self-propelled body, as shown below. That is, for example, a pair of left and right crawler traveling devices are provided at substantially the center of the fuselage, and one finishing device, which is composed of a plurality of finishing iron-like bodies, for example, is provided around the west of the traveling device. It is made to rotate (for example, see Japanese Patent Application No. 59-248529).
  • the finishing device rotates in one direction around the traveling device.
  • the traveling device receives moments in either the left or right direction with respect to the traveling direction during work due to the reaction force received from the concrete floor surface. Running control tends to be difficult.
  • the left and right rollers are previously set in order to cancel the moment in any direction with respect to the traveling direction as described above. It is conceivable to make the driving speed of the traveling device different, but in this case, the trail of passage by the one-sided roller traveling device tends to remain, which may lead to deterioration of the finishing accuracy. Was.
  • an object of the present invention is to provide a concrete floor finishing machine capable of directly finishing a concrete floor with higher accuracy and having good running stability. To do that.
  • the concrete floor finishing machine according to the present invention is characterized in that a plurality of finishing devices for smoothing the concrete floor surface in a semi-solid state are provided outside the traveling device, and the plurality of finishing devices are provided.
  • the device is interlocked with the motive mechanism such that at least one of the finishing devices rotates around the traveling device in a direction opposite to the other finishing devices.
  • a finishing device for smoothing a semi-solid concrete floor surface is provided by a traveling device.
  • Two finishers are provided on the outside, and one of the two finishers is linked to one motor so that it rotates around the traveling device in the opposite direction to the other finishers. .
  • finishing devices rotates around the traveling device in a direction opposite to that of the other finishing devices.
  • these finishing devices can offset the reaction force received from the concrete floor surface, and prevent the traveling device from receiving a moment in either the left or right direction with respect to the traveling direction. You can do it.
  • each finishing device is driven to rotate by a different motor.
  • it is not only advantageous in terms of mounting space, but also can reduce the overall weight and differ in the reaction force acting on each finishing device, for example.
  • the ratio of the number of revolutions can always be kept constant.
  • FIG. 1 is a partially cutaway side view of a concrete floor finishing machine according to one embodiment
  • FIG. 2 is a part of the concrete floor finishing machine.
  • the abbreviated plan view Fig. 3 is a partially cutaway rear view of the concrete floor finishing machine
  • Fig. 4 is an enlarged cross-sectional view of the main part
  • Fig. 5 is a view taken along the line V-V in Fig. 1
  • FIG. 6 is a partially cutaway overall side view of a concrete floor finishing machine according to another embodiment
  • FIG. 7 is an enlarged sectional view of a main part thereof.
  • a finishing device (X) for smoothing the concrete floor surface is connected to a vehicle body (1) having a pair of right and left crawler traveling devices (A). Then, the two crawler traveling devices (A) constituting the concrete floor finishing machine used for the concrete floor finishing work were attached to both ends of the vehicle body (1), respectively.
  • Body U The left and right driving wheels (2) are linked to separate traveling motors (5) that can rotate forward and reverse, and the forward and backward rotation and turning of the aircraft can be performed by combining forward and reverse rotation of both motors (5).
  • the finishing device (Xa) and the outer finishing device (Xb) are arranged concentrically around the vehicle body (1) as the finishing device (X). It is provided.
  • Each of the finishing devices (Xa) and (Xb) has four trowels (7a) and (7b), respectively.
  • Each of the trowels (7a) and (7b) is 90 from the center of the body (1) toward the periphery in plan view.
  • the pipe frames (8a) and (8b) made of four steel pipes are radially arranged with the phase difference of 4 mm.
  • a circular pipe frame (19) having a radius substantially equal to the rotation radius of the tip portion of the trowel (7b) was attached to each trowel (7b).
  • the pipe frame (8b) is bolted to the tip side via a supporting rod (20).
  • each of the trowels (7a) and (7b) is provided with brackets (9a) and (9b) fixed on the upper surface of the iron-like bodies (7a) and (7b). It is mounted movably. Rotation of the bolt (11) screwed to the nut (10) welded to the pipe frame (8a), (8b) causes the step (11A) at the tip of this bolt (11) to rotate.
  • the brackets (9a) and (9b) are swung around the axis (PJ) by contact, and the trowels (7a) and (7b) can be set at any angle with respect to the concrete floor surface.
  • the scales (21) located on the hands (9A) connected to the brackets (9a) and (9b) allow the trowels (7a), (7b) ) Can be visually checked.
  • each pipe frame (8a) constituting the inner finishing device (Xa) is fixed around the annular coupling (12a) above the fuselage (1).
  • the connector (12a) is vertically slidably fitted to a spherical seat (14a) to the finishing apparatus side tubular member upper and lower position (1.3), the axial center (P 2) freely relative rotation about Mounted on Then, a pair of rods (15a) is arranged so as to sandwich one pipe frame (8a) from both sides, and a bracket (16a) to which the pair of rods (15a) is fixed is attached. Similarly, it is externally fitted to the finishing device side tubular body (13) so as to be relatively rotatable.
  • bracket (16a) is linked to a motor (17a) attached to a lower portion of the finishing device side tubular body (13) via a speed reduction mechanism (18a).
  • Each iron body (7a) of the inner finishing device (Xa) is rotated around the car body (1) to smooth the semi-solid concrete floor surface. It is composed.
  • each pipe frame that constitutes the outer finishing device (Xb) The base end of the rubber (8b) is fixed to the periphery of the annular connector (12b), further above the annular connector (12a) to the inner finishing device (Xa).
  • This connecting member (12b) is also attached to a spherical receiving seat (14b) which is fitted to the finishing device side tubular body (13) so as to be slidable up and down so as to be relatively rotatable around the axis (P 2 ). ing.
  • a pair of rods (15b) is arranged so as to sandwich one pipe frame (8b) constituting the outer finishing device (Xb) from both sides, and the pair of rods (15b)
  • the bracket (16b) to which the is fixed is externally rotatably fitted to the finishing device-side cylindrical body (13). Further, this bracket (16b) is linked to a motor (17b) mounted on the upper part of the finishing device tubular body (13) via a speed reduction mechanism (18b). Due to the rotation of 17b), each of the fins (7b) of the outer finishing device (Xb) is reversed around the body (1) with respect to each of the trowels (7a) of the inner finishing device (Xa). By rotating in the direction, the semi-solid concrete floor surface is smoothed in cooperation with the inner finishing device (Xa).
  • two motors (17a) and (17b) constitute a first drive mechanism (17).
  • finishing devices (Xa) and (Xb) rotate around the traveling device (A) to smooth the surface of the semi-solid concrete floor
  • the finishing devices (Xa) and (Xb) Xb) receives the counterforce from the concrete floor surface, but by configuring the finishing devices (Xa) and (Xb) to rotate in opposite directions,
  • the devices (Xa) and (Xb) cancel the reaction force received from the concrete floor surface, and the traveling device (A) does not receive any moment in either the left or right direction relative to the traveling direction. By doing so, the aircraft can run in a stable state.
  • the inclination angles of the iron-like bodies (7a) and (7b) constituting the pair of finishing devices (Xa) and (Xb) described above with respect to the concrete floor surface are made different between the inside and the outside.
  • the rotation speed of both finishing devices (Xa) and (Xb) for example, to use the inner finishing device Ua) for semi-finishing while using the outer finishing device ( Xb) can also be used for final finishing, which enables more accurate finishing work.
  • a connection mechanism (23) for connecting the finishing device (X) to the vehicle body (1) is vertically expandable and contractible by a second drive mechanism (25).
  • the above-mentioned finishing device-side tubular body (13) is attached to the vehicle body-side tubular body (22) which is vertically installed and fixed substantially at the center of the vehicle body (1), and the two tubular bodies (13), (22) ) Is externally fitted via a linear bearing (23a) which allows relative sliding of the connecting mechanism (23). Then, one end of the rack portion (25B) is fixed to the finishing device side tubular body (13) via the bracket (24), and the head portion (25A) is fixed to the vehicle body (1). (25a) is provided, and by the operation of the motor (25a), the two cylindrical bodies (13) and (22) are slid relative to each other, so that the vehicle body (1) and the finishing device (X) are moved.
  • a second drive mechanism (25) is configured to move up and down relatively.
  • the concrete floor finishing machine can change the direction of the body using the connecting structure of the two tubular bodies (13) and (22) and the motor (25a). ing. That is, when turning the airframe, first, each iron-like body (7a) or (7b) of any finishing device (Xa) or (Xb) is grounded to the concrete floor surface, and the four irons are placed. After the body is stably supported by the body (7a) or (7b), the motor (25a) is operated to raise the vehicle body (1) with respect to the finishing device (X).
  • the finishing device rotation motor (17a) or (17b) is stopped, and the motor (25a) is operated to put the car body (1) on the concrete floor surface.
  • the concrete floor surface is hardly damaged by the direction change, and This can be performed with a small turning radius, and the aircraft can be accurately moved to a predetermined position.
  • a spring (28) externally fitted to the cylindrical body (13) is provided between the second flange (27) loosely fitted to (13) and the upper end of the spherical seat (14a). , Via (29) I am wearing it.
  • a nut (30) is screwed into the cylindrical body (13) further above the second flange (27), and the nut (30) is rotated by rotating the nut (30). 2
  • the spherical seat (14a) is moved up and down so that the pressing force against the concrete floor surface by each of the look-like bodies (7a) of the inner finishing device (Xa) can be adjusted to a predetermined pressure. ing.
  • the inner finishing device (Xa) and the outer finishing device (Xb) use the respective trowels (7a) and (7b).
  • Conclusion To make the inclination angle to the floor surface different, or to make the rotation speed of both finishing devices (Xa) and (Xb) different, both finishing devices (Xa) and (Xb) By appropriately adjusting the pressing force, the reaction force received by the finishing devices (Xa) and (Xb) from the concrete floor surface can be sufficiently offset.
  • Adjustment of the pressing force on the concrete floor surface by the trowels (7a) and (7b) is performed in addition to the above-mentioned method using the rotation of the adjusting nuts (30) and (36).
  • a pair of finishing devices (Xa), (Xb) for the vehicle body (1) are checked.
  • It can also be done by changing the relative position of each. (38) in the figure is a load cell for detecting the rotational torque.
  • the pair of traveling motors (5), the finishing device rotating motors (17a), (17b), and the cap tie cords (53) for transmitting each operation signal to the motor (25a) include:
  • FIG. 1 in this control device (40) is a relay box (39) top ⁇ connector (41), and, where wound on this connector () Setting the ⁇ head (4 2) It is connected to the operating device (44) through the fiber cord (43), and the operator holds the operating device (44) and -Each operation by the floor finisher can be remotely controlled.
  • the driving device (17) has a single motor (17a).
  • each pipe frame (8a) constituting the inner finishing device (Xa) driven by a single motor (17a) is located above the fuselage (1). It is fixed around the annular connector (12a).
  • This connecting member (12a) is a cylindrical member attached to the outside of the finishing device side cylindrical member (13) in a vertical position via a pair of upper and lower bearings (59) for relative rotation and sliding movement.
  • vertically slidably fitted to a spherical seat (14a) 'in Sri chromatography Bed (60) are mounted for relative rotation on the shaft core (P 2) around.
  • a fixed bevel gear (51a) is fixed to the lower end of the sleeve (60) via the idle bevel gear (51b) attached to the finishing device side tubular body (13).
  • the bevel gear (51c) fixedly connected to the slot (16a) is interlockingly connected to the bevel gear (51c). Is rotated around the west of the vehicle body (1) in the opposite direction to the solid bodies (7a) of the inner finishing equipment Ua) to smooth the semi-solid concrete concrete floor surface. It is configured to work in cooperation with the inner finishing device (Xa).
  • a nut (30 ') is screwed into the cylindrical body (13) above the flange (27'), and the flange (27 ') is rotated by rotation of the nut (30').
  • 27 ') and nuts (30,) while confirming the indicated pressures by the three pressure cells (37) for adjusting the pressing force, the flanges (27') and the two ball bearings were used together.
  • the seats (14a) and (14b) are moved up and down, and the inner and outer finishing devices (Xa) and (Xb) are pressed against the concrete floor surface by the iron-like bodies (7a) and (7b). The pressure can be adjusted to a predetermined pressure.
  • a plurality of driving rollers may be provided on each of the left and right sides, and these are referred to as traveling devices (A).
  • the configuration for moving the vehicle body (1) with the traveling device (A) attached thereto and the finishing device (X) relative to each other can be changed as appropriate.
  • the body (1) and the finishing device (X) are connected by a combination of a rack and a pinion gear, A motor that can rotate forward and backward may be linked to the pinion gear.
  • a hydraulic return cylinder may be provided instead of the motor (25a), and they are referred to as a drive mechanism (25).
  • the vehicle body (1) is changed by the drive mechanism (25) so that the direction change of the airframe can be performed with a small turning radius and little damage to the concrete surface.
  • the finisher (X) can be moved up and down relative to each other, but the finisher-side tubular body (13) with the finisher () 0 mounted to be rotatable relative to the body (1)
  • the bolts may be fixed by using a bolt, a combination of the above-described bolt and the rack and the pinion gear, or a combination of the linear bearing (23a) in the previous embodiment. It is generically referred to as a coupling mechanism (23).
  • each of the iron-like bodies (7a) and (7b) constituting the inner finishing device (Xa) and the outer finishing device (Xb) or the number thereof can be changed as appropriate.
  • the bodies (7a) and (7b) may rotate around the vehicle body (1) while rotating around the fulcrum of attachment to the pipe frames (8a) and (8b). Further, in order to rotate the finishing device (X) around the vehicle body (1), the inner finishing device rotating motor (17a) and the outer finishing device rotating motor (17b) as in the previous embodiment are provided.
  • the rotor is installed in the annular couplings (12a) and (12b) to which the pipe frames (8a) and (8b) are attached, and the stator is installed in the spherical seats (14a) and (14b).
  • this connection structure itself may constitute an electric motor.
  • the structure for adjusting the pressing force by both finishing devices (Xa) and (Xb) can be changed to various types.
  • a load cell and a rod composed of a rod attached to the tip of the load cell can be used.
  • a concrete hardness detector is provided to detect the load required for the rod to penetrate the concrete floor in a semi-solid state by a certain length with a mouth cell, and from the detected load an appropriate load is detected.
  • the pressing force is calculated and displayed, or the appropriate pressing force value obtained by this concrete hardness detector and the load cell for pressing force adjustment (31), (37)
  • the command pressure value by the motor (25a) may be input to the control circuit of the motor (25a), and the pressing force may be automatically adjusted by the motor (25a).
  • various pressure sensors can be used instead of the load cells (31) and (37).
  • the inner finishing device (Xa) and the outer finishing device (Xb) are provided by 1 mm each, and the two finishing devices (Xa) and (Xb) are connected in opposite directions.
  • three or more finishing devices (X) may be provided. That is, for example, three finishing devices (X) are provided, and one of them is rotated in the opposite direction to the other two, or four finishing devices (X) are provided, and Two of them can be rotated in opposite directions.
  • the number of trowels constituting each finishing device (X) may be appropriately changed, or as described above, the pressing force of each finishing device (X) may be appropriately changed.
  • each finishing device (X) from the concrete floor surface can be offset, and the traveling device (A) can be prevented from receiving moment. That is, at least one finishing device (X) of the plurality of finishing devices (X) is moved in the direction opposite to the other finishing devices (X) to the traveling device (A). ).
  • a receiver is provided in place of the relay box (39) in the previous embodiment, and a signal from a transmitter owned by an operator is transmitted to this receiver by radio to operate the aircraft.
  • a concrete floor finishing machine is provided with a position detection sensor for recognizing the current position, and the travel route is determined based on information from this sensor and the hardness detection device.
  • the method of operating the aircraft can be changed as appropriate, such as performing fully automatic operations such as proceeding with work. [Industrial applicability]
  • the concrete floor finishing machine of the present invention is suitable for efficiently smoothing a concrete floor surface in a semi-solidified state.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)

Abstract

Une machine de finition de plancher égalise la surface d'un plancher en béton pendant que le béton posé est dans un état à demi solidifié, un matériau de finition du plancher pouvant être directement posé sur la surface égalisée du plancher. Les machines de finition de planchers utilisées à cet effet consistent en une machine de finition du plancher ayant une seule unité de finition, qui tourne autour d'un chariot. Cependant, dans ce type de machines de finition, il est difficile de commander le déplacement du chariot étant donné qu'un moment est appliqué à celui-ci suite à la force de réaction que l'unité de finition reçoit de la surface du plancher en béton. Cette machine de finition de planchers en béton comprend un chariot (A) et une pluralité d'unités de finition (X) agencées par un dispositif de connexion (23) sur le côté extérieur du chariot (A). Les unités de finition (X) peuvent se déplacer verticalement par rapport au chariot (A), et au moins une des unités de finition peut être mise en rotation dans une direction opposée à la direction de rotation des autres unités de finition (X). Chaque unité de finition (X) comprend une pluralité d'organes (7) similaires à des truelles qui s'étendent radialement par rapport au chariot (A).
PCT/JP1986/000041 1985-02-04 1986-01-31 Machine de finition de plancher en beton WO1986004633A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP60/19709 1985-02-04
JP1970985A JPS61179957A (ja) 1985-02-04 1985-02-04 コンクリ−ト床仕上機
JP60/200977 1985-09-11
JP20097785A JPS6263760A (ja) 1985-09-11 1985-09-11 コンクリ−ト床仕上機

Publications (1)

Publication Number Publication Date
WO1986004633A1 true WO1986004633A1 (fr) 1986-08-14

Family

ID=26356552

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP1986/000041 WO1986004633A1 (fr) 1985-02-04 1986-01-31 Machine de finition de plancher en beton

Country Status (2)

Country Link
CA (1) CA1271341A (fr)
WO (1) WO1986004633A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0223859A1 (fr) * 1985-05-24 1987-06-03 Takenaka Corporation Machine de finition des sols en beton
CN104612381A (zh) * 2014-12-31 2015-05-13 山东建筑大学 一种抹灰机料斗翻转装置
CN110565925A (zh) * 2019-09-11 2019-12-13 广东博智林机器人有限公司 抹平机器人

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7771139B2 (en) * 2007-08-16 2010-08-10 Wacker Neuson Corporation Concrete trowel transport system

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6047159A (ja) * 1983-08-24 1985-03-14 株式会社大林組 自動走行床仕上装置
JPS60105757A (ja) * 1983-11-11 1985-06-11 株式会社竹中工務店 コンクリ−ト床仕上機
JPS60130943U (ja) * 1984-02-13 1985-09-02 鹿島建設株式会社 コンクリ−トフイニツシヤ

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6047159A (ja) * 1983-08-24 1985-03-14 株式会社大林組 自動走行床仕上装置
JPS60105757A (ja) * 1983-11-11 1985-06-11 株式会社竹中工務店 コンクリ−ト床仕上機
JPS60130943U (ja) * 1984-02-13 1985-09-02 鹿島建設株式会社 コンクリ−トフイニツシヤ

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0223859A1 (fr) * 1985-05-24 1987-06-03 Takenaka Corporation Machine de finition des sols en beton
EP0223859A4 (fr) * 1985-05-24 1987-09-02 Takenaka Komuten Co Machine de finition des sols en beton.
CN104612381A (zh) * 2014-12-31 2015-05-13 山东建筑大学 一种抹灰机料斗翻转装置
CN104612381B (zh) * 2014-12-31 2017-02-22 山东建筑大学 一种抹灰机料斗翻转装置
CN110565925A (zh) * 2019-09-11 2019-12-13 广东博智林机器人有限公司 抹平机器人
CN110565925B (zh) * 2019-09-11 2021-03-19 广东博智林机器人有限公司 抹平机器人

Also Published As

Publication number Publication date
CA1271341A (fr) 1990-07-10

Similar Documents

Publication Publication Date Title
US6953304B2 (en) Lightweight apparatus for screeding and vibrating uncured concrete surfaces
US7491011B2 (en) Apparatus for screeding uncured concrete
US6695532B2 (en) Concrete finishing apparatus
CN110005451B (zh) 一种可折叠拱架式隧道防水板安装车
JP6473239B2 (ja) 作業車両の操舵制御装置
US20010048850A1 (en) Concrete placing and screeding apparatus and method
WO1986007109A1 (fr) Machine de finition des sols en beton
CN204690756U (zh) 一种车载式伸缩皮带机
WO1986004633A1 (fr) Machine de finition de plancher en beton
JPH039982B2 (fr)
JPH0340778B2 (fr)
JP2936432B2 (ja) コンクリート床仕上げ機
JP2573795Y2 (ja) コンクリート打設装置
JPS6263760A (ja) コンクリ−ト床仕上機
CN219542570U (zh) 用于室内地面的分控式地面打磨装置
JPH0628603Y2 (ja) コンクリート床面研磨機
JPH04261960A (ja) コンクリート床仕上げ機
JPH039984B2 (fr)
JPH0330670B2 (fr)
JPS60105756A (ja) コンクリ−ト床仕上作業車
JPH0319341B2 (fr)
JPH0693729A (ja) コンクリート床仕上げ機
JPH0735995Y2 (ja) コンクリート床面仕上げ機
JPH049798Y2 (fr)
JP3272341B2 (ja) 横行システムを持った作業車両

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): KR SU US

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): DE FR GB IT