JPS6335781B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a movable formwork device for concrete retaining walls in which movable wheels are attached to the formwork.

Most conventional formwork devices of this type have a structure in which a formwork made of a combination of weir plates and batten material is supported on a frame such as a gate-shaped frame, and wheels for movement are attached to this. Therefore, this type of formwork equipment requires large moving equipment in addition to the formwork, is extremely heavy, requires a large area, and has poor workability.
It had many drawbacks such as being uneconomical.

The present invention has been made in view of the above-mentioned drawbacks of the conventional art. Formwork is generally a combination of shedding plates, vertical flaps, and horizontal flaps, and is itself highly rigid. The formworks are connected to the body members in a tilt-adjustable manner, and adjustable traveling casters are attached to the outer lower part of each formwork so that the wheels for moving the formwork can be adjusted vertically and laterally. This makes it possible to support and move large movable formwork, as well as to easily and reliably perform various operations such as shaping, adjusting, and demolding the formwork, and is lightweight and highly economical. It is an object of the present invention to provide a mobile formwork device for concrete retaining walls.

Embodiments of the apparatus of the present invention will be described below with reference to the drawings.

In the figure, reference numerals 1 and 1' denote a pair of formworks disposed opposite each other, which connect the vertically long arm members 2 and the horizontal flaps 30, and also have a weir plate 3 on each opposing surface side of the arm member 2. The arm member 2 protrudes upward longer than the weir plate 3. Each of these forms 1 and 1' is connected to the middle part of a body member 4, which is formed long in the transverse direction of the form, at a predetermined distance from each other. That is, a lateral movement adjustment jack 5 is fixed to the upper end of the arm member 2 of each formwork 1, 1', and by rotating the threaded rod 6, a screw feed pin 7 screwed onto the threaded rod 6 is fixed. is adapted to be moved in the transverse direction of the arm members 2, 2, and the forms 1, 1' are pivotally connected to the body member 4 via these pins 7, 7. Therefore, the formworks 1 and 1' can be rotated with respect to the body material 4 by pins 7 and 7, respectively, as shown by the arrow a, and moreover, by operating the threaded rod 6, the formworks 1 and 1' can be rotated relative to the body material 4, as shown by the arrow b. It is movable and adjustable in the longitudinal direction. Incidentally, since this lateral movement adjustment jack 5 is conventionally known, a detailed explanation thereof will be omitted.

At both ends of the body member 4, there are movable brace members 11, 11, each having a telescopic jack 8 at its upper end, on which a movable pin 10 is moved by rotating a threaded rod 9, similar to the above-mentioned jack 5. pin 1
0 and 10, and each lower end of each brace member 11, 11 is connected to the arm member 2, 1 of the formwork 1, 1'.
It is connected to the lower part of 2 by pins 12, 12.

Further, at the lower part of the arm members 2, 2 of each formwork 1, 1', there is a traveling caster 13, which can perform operations such as shaping, adjusting, and peeling the formwork in addition to moving the formwork 1, 1'. 13'
are installed on each. This running gear 13,
13', a hollow vertically elongated jack box 14 attached to the arm member 2 of the formwork is provided with a threaded rod 15 rotatably provided therein, and a screw feed pin 17 is screwed into the threaded rod 15. Rotation operation part 16
By rotating the threaded rod 15, the jack box 14 is guided by an elongated hole 18 formed along the longitudinal direction and moves up and down.
An upper portion of an L-shaped plate 19 having a protruding portion 19a whose lower end is bent outward is attached to the upper portion of the L-shaped plate 19. From the middle part of the L-shaped plate 19,
A pin 21 is provided protrudingly to be inserted loosely into an elongated hole 20 in the vertical direction provided at the bottom of the jack box 14. Therefore, the L-shaped plate 19 is attached to the jack box 14 via the pins 17 and 21 located above and below, and is adjusted to move up and down in the direction of arrow C according to the forward and reverse rotation of the threaded rod 15. . The protruding portion 19a of the L-shaped plate 19
A long hole 22 in the longitudinal direction and a screw rod 23 are provided in the screw rod 23, and a screw feed pin 24 protruding from the long hole 22 is screwed into the screw rod 23.
A wheel 25 is attached to the wheel 4 via a bracket 26, and by rotating a threaded rod 23 by a rotary operation section 27, the wheel 25 can be adjusted to move laterally as shown by an arrow d.

Note that the L-shaped plate 19 has a protrusion 19 in the formwork 1 and in the formwork 1'.
The refraction angles of a are different, but this is because it is convenient to keep the protrusion 19a in a nearly horizontal state compared to the normally used inclined state of the formwork, so This is due to the angle. However, the configuration in which the refraction is changed is not limited to this, for example, the L-shaped plate 19 may be configured such that the refraction angle of the protruding portion 19a can be freely adjusted, or the bracket may be configured to have a different inclination angle. The wedge-shaped liner may be replaced depending on the inclination of the formwork to keep the moving direction of the wheels 25 substantially horizontal.

Furthermore, although each of the jack mechanisms described above uses a threaded rod, it goes without saying that any conventionally known technology, including an oil jack, may be employed.

Next, an example of the use of the apparatus of the present invention will be described. Generally, a wall body A to be constructed is constructed on an existing foundation structure B. Rails 29, 29 on which the wheels 25, 25 of the formwork are placed, and brackets 28, 28 for receiving the rails are attached in advance to both sides of the foundation structure B by anchors. The formwork device of the present invention has wheels 25, 2.
5 on rails 29, 29, and is moved to a predetermined construction position. At the construction position, each formwork 1, 1' is positioned in a predetermined shape. First, the vertical position of the formwork is determined by rotating the threaded rods 15, 15 of the traveling casters 13, 13', and then rotating the L-shaped plates 19, 19.
This is done by adjusting the position up and down. Next, the positioning and normal alignment of the upper and lower parts of the formwork in the transverse direction are performed using lateral movement adjustment jacks 5 and 5.
Lateral movement b, b of the upper part of the formwork by operating the threaded rods 6, 6 and the threaded rods 2 of the L-shaped plates 19, 19
This is performed by relative lateral movement d, d between the wheels and the formwork by the operations 3 and 23. In addition, when adjusting these formworks, the threaded rods 9, 9 of the brace members 11, 11 are operated to adjust the pins to which the brace members 11, 11 are connected, depending on the inclined state of the formwork. Expand/shrink the distance between 10 and 12. The brace materials 11, 11 are attached to a pair of formworks 1, 1'
It is supposed to play a major role in integrally and rigidly connecting the parts through the body material 4.

After the concrete poured between the formworks 1 and 1' has hardened, the formwork is peeled off. To do so, the upper part of the formworks 1 and 1' must be moved outward by operating the lateral movement adjustment jacks 5 and 5. At the same time, the L-shaped plate 19,1
The lower part of the formwork 1, 1' may be moved outward relative to the wheels 25, 25 by operating the threaded rods 23, 23 of 9. Of course, in this case as well, the distance between the pins 10 and 12 is shortened by operating the telescopic jacks 8 and 8 of the brace members 11 and 11. When the formworks 1, 1' are sufficiently far away from the constructed wall A, the entire apparatus is pushed forward and moved to the next construction site.

The device of the present invention is constructed as described above, and the pair of formworks form a highly rigid gate-shaped frame structure by combining with the body material and the brace material, and the lower part of the formwork is Since the traveling casters are directly attached, there is no need to install large equipment such as conventional gate-shaped frames and trolleys, and the entire formwork device can be manufactured lightweight and inexpensively. Various operations such as peeling and traveling are performed by operating the lateral movement adjustment jack on the upper end of the formwork, the expansion and contraction jack of the brace material, and the vertical adjustment threaded rod and lateral adjustment threaded rod of the traveling caster, respectively. Adjustments and other operations on the mobile formwork, which were difficult with conventional equipment, can be performed extremely easily, work efficiency is significantly improved, and there is no need for a large work area due to the mobile formwork.
It has many excellent effects, such as the ability to construct retaining wall concrete extremely efficiently and economically.

[Brief explanation of the drawing]

The drawing is a side sectional view showing one embodiment of the device of the present invention. A... Wall to be constructed, B... Foundation structure, 1.
1'... Formwork, 2... Arm material, 3... Weir board, 4...
...Body material, 5... Lateral movement adjustment jack, 7... Screw feed pin, 8... Telescopic jack, 10... Pin,
11... Brace material, 12... Pin, 13... Traveling caster, 14... Jacket box, 15... Threaded rod, 17... Screw feed pin, 19... L-shaped plate, 21... Pin, 23... ...Threaded rod, 24...
Screw feed pin, 25...wheel, 29...rail.

Claims (1)

[Claims] 1. The upper ends of the pair of formworks are placed in the middle part of the body material formed long in the transverse direction of the formwork, and are rotatable at a predetermined distance from each other and can be adjusted to move approximately along the longitudinal direction of the body material. The body material and each appropriate position of each formwork are connected by a brace material whose mutual spacing can be adjusted, and wheels for running the formwork are installed at the outer lower part of each formwork. A mobile formwork device for retaining wall concrete, characterized by being equipped with traveling casters that can be freely adjusted in movement in the vertical direction of the formwork and in the transverse direction of the formwork.