JPH065123Y2 - Side frame fixing device for concrete formwork - Google Patents

Description

[Detailed Description of Device] a. Purpose of the Invention (Industrial field of application) The present invention is a side frame fixing device used in a formable mold for molding various concrete products in the civil engineering and construction industries. More specifically, the present invention relates to a device that can press a side frame against a side edge of a surface plate with a pressing body and can securely fix the side frame to the surface plate with a simple structure and operation.

(Prior Art) Conventionally, in a concrete mold for molding various concrete products, a lower part of the side frame 29 is brought into contact with a side edge of a surface plate 26 to form a molding space as shown in FIG. Side frame 2
In the concrete formwork capable of adjusting the height of 9 to adjust the depth of the forming space, the arm member 28 for sandwiching the lower part of the side frame 29 between the side plate and the outside of the surface plate 26 is a mounting member. Propulsion means for attaching a required number of members by means of 27, supporting the pressing body 32 for pressing the receiving portion 30 of the side frame 29 on these arm bars 28, and propelling these pressing bodies 32 toward the lower side of the side frame 29. A structure in which 31 is mounted is known.

(Problems to be solved by the invention) In the concrete formwork described above, if the side frame is raised and lowered and adjusted, a plurality of types of products having different heights can be molded with the same formwork. Since the shape of the molding space cannot be changed into a right angle and a bevel by changing the corresponding state of the side frame by moving and adjusting the sideways, as shown in FIG. Products such as beveled girders placed diagonally cannot be molded.

The present invention was made in order to solve the above-mentioned conventional problems, and the side frame can be laterally moved and adjusted with respect to the surface plate so that the side frame can be directly faced or left and right. By converting the molding space into right angles and bevels, the same formwork can be used from products such as right-angle girders in which charging members such as sheaths are inserted at right angles to products like beveled girders inserted at an oblique angle. Provided is a side frame fixing device for a concrete formwork that can be molded.

B. Configuration of device.

(Means for Solving the Problem) A side frame fixing device for a concrete formwork according to the present invention makes it possible to adjust the lateral movement of the side frame by abutting the lower part of the side frame against the side edge of the surface plate. And, in a concrete formwork capable of converting the planar shape of the molding space into a right angle and a bevel, attach a arm to sandwich the lower part of the side frame between the side edge and the outer side of the lower part of the surface plate. The problem is solved by a structure in which a required number of members are provided and a pressing body for pressing the lower portion of the side frame to the side edge of the surface plate is instructed to these arms.

(Operation) In the device of the present invention configured as described above, the lower edges are supported by the receiving bodies on both sides of the surface plate to attach the side frames, and the receiving portions provided on the inner surfaces of the side frames are each provided with a sheath or the like. If the charging member of FIG. 3 is supported and the side frame is directly opposed as shown in FIG. 3, the receiving portion is also directly opposed to support the charging member such as the sheath at a right angle to the side frame. In this state, the end frame is sandwiched between both ends of the side frame, and the pressing body supported by the arm bar is operated to push the lower part of the side frame against the side edge of the surface plate. A pressing member is pressed against and the charging member such as a sheath is inserted at a right angle to form a molding space for molding a product such as a right-angled girder in which the included angles of the side frame and the end frame are all right angles.

Also, one or both of the side frames attached to both sides of the surface plate were slid on the receiver and moved laterally, and the corresponding state was shifted to the left and right as shown in FIG. The receiving part is also shifted to the left and right as shown in the figure, and the charging member such as the sheath is supported obliquely with respect to the side frame.In this state, the end frame is sandwiched between the ends of the side frame and the armor If the lower part of the side frame is pressed against the side edge of the surface plate by operating the pressing body supported by the side frame, the side frame is pressed against the surface plate, and the charging member such as the sheath is obliquely inserted and the side frame is inserted. A molding space for molding a product such as a beveled girder having an acute angle and an obtuse angle between the end frame and the end frame is formed.

Furthermore, by changing the height of the receivers that support the lower edges of the side frames on both sides of the surface plate by exchanging or adjusting the receivers and raising or lowering the side frames, the charging members such as the sheath are at a right angle. Whether it is inserted or slanted, the depth of the molding space formed on the surface plate can be freely adjusted.At this time, when the side frame moves up and down, the pressing position is changed by the pressing body. Therefore, correspondingly, a receiving portion having a width larger than the range of vertical adjustment is formed in the lower portion of the side frame so that the pressure contact is always performed reliably.

In addition, when molding the product in the molding space and releasing it,
If the arm supporting the pressing body is tilted to be released to a position where it does not come into contact with the lower portion of the side frame, the mold release can be easily performed without being hindered by the arm.

(Embodiment) An embodiment of an apparatus according to the present invention will be described below with reference to the drawings.

Drawings 1 and 2 show a form A for molding a concrete product such as a bridge girder, which adopts the side frame fixing device for the concrete form according to the present invention, and has a required width and length. The lower portions of the side frames 2 and 2 are brought into contact with both side edges of the side plate 1, and this portion is pressed by a pressing body to be described later to press the side frame 2 against the side edges of the surface plate 1 and As shown in FIG. 3 and FIG. 4, the end frames 3 and 3 are sandwiched between them, and the surface plate 1
A long molding space 4 having a T-shaped cross section (see FIG. 1) that does not cause leakage is formed on the upper side, and the side frame 2 is put into the product as shown in FIGS. 3 and 4. When inserting the charging member 5 such as a sheath, the receiving portion 6 for supporting the charging member 5 is provided.

Reference numeral 7 denotes a receiving portion provided outside the lower portion of the side frame 2 for receiving a later-described pressing body. The receiving portion 7 has a width corresponding to the range of the up / down adjustment of the side frame 2 and a length equal to or larger than the lateral movement adjustment range. The pressing body is detached from the receiving portion 7 regardless of whether the side frame 2 is laterally moved or vertically moved by forming the side frame 2 continuously (conveniently provided over the entire length of the side frame). In order to ensure that the lower part of the side frame 2 can be pressed into contact with the side edge of the surface plate 1 without pressure.

Reference numeral 8 denotes a required number of mounting members that are projected outward from the lower portion of the surface plate 1, and a side frame 2 is provided between the tip of the mounting member and the side edge of the surface plate 1.
A arm 10 for sandwiching the lower part of the arm is attached so as to be pivotable to the left and right by a shaft 9, and the arm 10 is raised as shown in FIG. 6 when the mold is assembled, and is shown in the same line when the mold is released. Put it down as shown in.

Reference numeral 11 denotes a wedge-type pressing body supported by a lateral groove 12 provided at the upper end of the arm 10 described above, and as shown in an enlarged view in FIGS. 5 and 6, the lateral groove 12 and the receiving portion 7 of the side frame 2. Drive between
The lower part of the side frame 2 is strongly pressed against the side edge of the bottom plate 1 by the propulsive action of the slope.

FIGS. 7 and 8 show an embodiment in which the rotating direction of the arm member 10 is changed inward and outward. The tip of the mounting member 8 is formed into a crotch shape, and the plate-shaped arm member 10 is sandwiched in this portion. It is attached by a shaft 9 so as to be tilted in and out, and when the mold 10 is assembled, it is raised inward and supported by a support wedge 13, and a lateral groove 12 provided on the upper portion and a receiving portion 7 of the side frame 2 are provided. Wedge-shaped pressing body 11 between
Is driven, and the lower surface of the side frame 2 is strongly pressed against the side edge of the bottom plate 1 by the propulsive action by the inclined surface.

9 and 10 show an embodiment in which the pressing body is converted into a screw type, in which the arm 9 is attached to the tip of the mounting member 8 by the shaft 9.
Is attached so as to rotate to the left and right, a female screw 14 is formed on the upper portion of the armband 10, and a screw 15 is screwed onto the female screw 14, and the male screw 15 is rotated in the tightening direction to form a sloped surface. The lower part of the side frame 2 is strongly pressed against the side edge of the bottom plate 1 by the propulsion action of.

FIGS. 11 and 12 show an embodiment in which the pressing body is converted into a cam. The arm member 10 is attached to the tip of the mounting member 8 so as to rotate right and left by the shaft 9, and the upper portion of the arm member 10 is rotated. When the cam 16 is attached to the crotch portion provided on the shaft 17 and the cam 16 is rotated downward, the lower portion of the side frame 2 is strongly pressed against the side edge of the surface plate 1 by the propulsive action of the slope.

In this embodiment, an adjustment screw 19 is screwed onto the arm member 10 so as to abut on the rear bearing 18 supporting the shaft 9, and the arm member 10 is pushed out to the side frame 2 side by this screw 19, so that the cam 16 With this, the pressure contact force applied to the side frame can be strengthened.

FIG. 13 and FIG. 14 show an embodiment in which the pressing body 10 is of a bending / extending link type. The arm member 10 is attached to the tip of the mounting member 8 so as to rotate right and left by the shaft 9, and the arm member 1
A short sub-link 22 is provided in the middle of the main link 21 having the operating portion 20 at the upper part of 0, and the tip of the sub-link 22 is attached to the arm member 10 by the shaft 24 so that the main and sub-links 21 and 22 are bent. The main link 21 is placed with the tip of the main link 21 abutting against the receiving portion 7 and the links 21 and 22 are directly extended, so that the lower portion of the side frame 2 is moved to the side edge of the surface plate 1 by the propelling action of the lever. Press strongly.

Also in this embodiment, when the adjustment screw 19 is screwed onto the arm member 10 so as to contact the rear bearing 18 supporting the shaft 9, and the arm member 10 is pushed out to the side frame 2 side by this screw 19, the bending and stretching link is formed. The pressure contact force applied to the side frame 2 can be enhanced by 21 and 22.

Reference numeral 25 denotes a lower edge receiver of the side frame 2 supported by the bottom plate 1,
The side frame 2 is slid over this to move the side frame 2 in the lateral direction. When the height of the receiving body 25 is changed by adjusting or replacing the receiving frame 25, the side frame 2 supported by the receiving frame 25 moves up and down. The depth of the formed molding space 4 can be changed.

C. As described above, in the device of the present invention as described above, it is possible to form a product such as a right-angled girder in which the corresponding side frames are directly faced and the charging member such as the sheath is inserted at a right angle. It is also possible to form a product such as a beveled girder in which a charging member such as a sheath is obliquely inserted.

It is also possible to move the side frames up and down to adjust the depth of the formwork to obtain products with different heights.

Since the pressing body is supported on the surface plate and the side frame is pressed by the pressing body, the structure can be manufactured at low cost.

Since the lower part of the side frame that is in contact with the side edge of the surface plate is pressed by the pressing body, a molding space having a high sealing effect can be easily and quickly formed.

It has unique effects such as.

[Brief description of drawings]

FIG. 1 is a vertical sectional side view of a concrete formwork which employs the device according to the present invention. FIG. 2 is a front view of a part of the above. Third
The figure is a schematic plan view of forming a product such as a right-angled girder by facing the above side frames. FIG. 4 is a schematic plan view of forming a product such as a beveled girder by shifting the side frames to the left and right. FIG. 5 is a vertical cross-sectional side view showing an embodiment in which a side frame is fixed by a wedge type pressing body.
FIG. 6 is a front view of the above. FIG. 7 is a vertical sectional side view showing an embodiment in which the turning direction of the arm is changed. FIG. 8 is a front view of the above. FIG. 9 is a vertical cross-sectional side view showing an embodiment in which the side frame is fixed by a screw type pressing body. FIG. 10 is a front view of the above. FIG. 11 is a side view showing an embodiment in which the side frame is fixed by a cam type pressing body.
FIG. 12 is a front view of the above. FIG. 13 is a side view showing an embodiment in which a side frame is fixed by a bending and stretching link type pressing body. FIG. 14 is a front view of the above. FIG. 15 is a vertical sectional side view showing a conventional side frame fixing device. FIG. 16 is a front view of the above. 1: Surface plate 2: Side frame 4: Molding space 7: Receiving part 8: Mounting member 10: Bracket 11, 14, 16, 21: Pressing body 7: Receiving part 25: Receiving body

Claims (3)

[Scope of utility model registration request] 1. A lower part of a side frame 2 is brought into contact with a side edge of a surface plate 1,
In a concrete formwork capable of adjusting lateral movement of the side frame 2 and converting the planar shape of the molding space 4 into a right angle and a bevel, a side edge is formed on the lower outer side of the bottom plate 1. A predetermined number of arms 10 for sandwiching the lower part of the side frame 2 between the side frames 2 are attached to the arms 10 by means of mounting members 8.
Pressing bodies 11, 1 for pressing the lower part of the plate against the side edge of the surface plate 1
A side frame fixing device for a concrete formwork, characterized in that 4, 16, 21 and the like are supported. 2. A concrete formwork characterized in that it can be erected so that the armrest (10) according to claim (1) escapes to a position that does not prevent the side frame (2) from being detached when the mold is released. Side frame fixing device. 3. Even if the side frame 2 according to claim 1 is moved to the left and right and up and down, the pressing bodies 10, 14, 16,
21. A side frame fixing device for a concrete formwork, characterized in that a receiving portion 7 having a length and a width that does not deviate from 21 or the like is attached.