JPH0538885Y2 - - Google Patents

Description

[Detailed description of the invention] A. Purpose of the invention (industrial application field) The invention is a device for adjusting the depth of formwork for forming various concrete products in the civil engineering and construction industries. More specifically, it relates to a device that adjusts the depth of a formwork by raising and lowering the side frame relative to the bottom plate by simply changing the height of a small receiver that supports the lower end of the side frame.

(Prior art) Conventionally, when manufacturing multiple types of products with different heights using the same formwork in concrete molding, the maximum height side is placed on the bottom plate 18 as shown in drawings 17 to 19. The frame 19 is erected, the maximum depth of the formwork E is set, and when a shallower formwork E is required, an adjustment base 2 of different thickness is placed on the bottom wall 18.
0 to get the desired depth, or
As shown in Figures 0 to 21, the side frame 19 with the minimum height is erected on the bottom plate 18, and the minimum depth of the formwork E is set. If a deeper formwork E is required, the above-mentioned Adjustment frame 2 with different heights mainly on the lower side of the side frame 19
1 to obtain the formwork E with the desired depth.

(Problem to be solved by the invention) Among the conventional concrete formworks mentioned above, the former has to be equipped with several adjustment bases that have the same width and length as the bottom plate and different thicknesses, so the cost of adjustment materials is high. Not only is it very expensive, but it also takes a lot of effort and time to attach and remove the large and heavy adjustment base to adjust the depth.Furthermore, since the adjustment base is stacked on top of the bottom board, the vibrator becomes less effective and difficult to adjust. Since the upper surface of the base is further away from the fastening position of the side frame, there is a problem in that it is more likely to cause slag leakage.

The latter requires several adjustment frames with the same thickness and length as the side frames but different heights, which not only increases the cost of adjustment materials, but also
Adjusting the depth by attaching, detaching, and replacing large and heavy regulating valves takes a lot of effort and time, and when the adjusting frame is joined to the side frame, there may be a step at the joint, or the side frame may be damaged by concrete pressure. There are problems such as bending at the joints and leakage from the joints.

The present invention was made in order to solve the above-mentioned conventional problems, and by converting the height of the small receiver that supports the lower end of the receiver and raising and lowering the side frame, the depth of the formwork can be adjusted. Since adjustment is performed, the cost of parts for adjustment is extremely low, and the depth adjustment by converting and replacing the small and light receiver can be done with little effort and time, and the depth adjustment can be done outside the molding space. The object of the present invention is to provide a concrete formwork depth adjustment device that maintains accuracy and prevents slag leakage because the molding space is not affected in any way.

B. Structure of the invention (means for solving the problem) The means of the invention for achieving the above-mentioned object is a concrete formwork in which the lower part of the side frame is brought into contact with both sides of the bottom wall to form a molding space. The concrete formwork depth adjusting device has a structure in which small receivers capable of changing the height are attached to the bottom wall at predetermined intervals, and the lower ends of the side frames are supported by these receivers.

(Function) When the device of the present invention configured as described above uses a convertible type receiver as shown in Figs. Turn the one receiving surface sideways so that it comes up as shown in Figures 1, 2, 5, and 6, fix it with screws, and support the lower end of the side frame on top of it. For example, the depth of the formwork becomes shallow because the side frame is lowered relative to the bottom plate, and the second receiving surface, which is located at a greater distance from the support shaft, As shown in the figure, if you turn the form vertically upwards and fix it with screws, and then support the lower end of the side frame on top of that, the depth of the formwork will increase because the side frame will rise relative to the bottom plate. This effect is similarly achieved for molds having the shape shown in FIG. 11 and molds having other shapes.

Next, when using interlocking receivers as shown in Figures 12 and 13, attach the receivers at predetermined intervals to the interlocking shafts attached to the bottom plate parallel to the longitudinal direction. The interlocking shaft is converted horizontally so that the first bearing surface supports the lower end of the side frame, or vertically turned and the second bearing surface supports the lower end of the side frame. If it is fixed by the locking means, the depth of the formwork can be adjusted by raising and lowering the side frame relative to the bottom plate in the same manner as described above.

Furthermore, when using a replaceable receiver as shown in Figure 14, insert the first one into the groove of the support piece attached to the bottom plate.
As shown in Figure 5, place one of the receivers of a composite receiver consisting of three receivers of different heights and support the lower end of the side frame, or use three receivers of different heights. If you place one of the formed receivers in the groove of the support piece and have it support the lower end of the side frame, adjust the depth of the formwork by raising and lowering the side frame relative to the bottom plate in these cases as well. It is something that can be done.

(Example) An example of an apparatus related to the present invention will be described below based on the drawings.

1 to 10 show a first embodiment. In this embodiment, reference numeral 1 denotes a bottom plate, and adjustment portions 2 are provided on both sides of the bottom plate 1, extending below the side frame 2. ', and this adjusting part 2' is pressed against the joint surfaces on both sides of the bottom plate 1 by means of pressure contact means to be described later, thereby forming a desired molding space without slag leakage.
This is what you get.

b is a means for press-contacting the adjusting portions 2' of the side frame 2 to the joining surfaces on both sides of the bottom plate 1, and is a means for press-contacting the adjusting portions 2' of the side frame 2 to the joint surfaces on both sides of the bottom plate 1, and is a means for pressing the adjusting portions 2' of the side frame 2 to the joining surfaces on both sides of the bottom plate 1. A notch 3 shown in an enlarged view is made, and restraining plates 4 are provided on both sides of the notch 3, and a clamping plate 5 that extends from the notch 3 to between the restraining pieces 4 is attached to the bottom plate 1, and this clamping plate 5 and the Holding plate 4 and 9th
As shown in the figure and FIG. 10, when the wedge holes 6 and 7 are opened and both wedge holes 6 and 7 are inserted into the wedge 8, the holding piece 4 is held down by the slope, and the adjustment part 2' of the side frame 2 is pressed. It is strongly pressed against the joint surfaces on both sides of the bottom plate 1 to form a molding space that does not cause any leakage.
The aforementioned tightening plate 5 is attached to the bottom plate 1 as shown in FIG.
It may be fixed to the bottom plate 1 as shown in Figure 9.
When the wedge 8 is rotatably attached to the shaft 9, the tightening plate 5 becomes natural when the wedge 8 is removed, making the operation convenient.

Reference numeral 10 denotes a receiver for supporting the adjustment portion 2' at the lower end of the side frame 2, which is adjusted at intervals as shown in FIGS. 1 and 2, and at different distances from the axis described later as shown in FIG. The receiving body 10 is formed into a rectangular shape having first and second receiving surfaces c and d.
The support piece 12 is rotatably attached to the support piece 12 attached to the support piece 12, and the support piece 10 is turned sideways as shown by the solid line in FIGS.
When the first receiving surface c is fixed to the adjustment part 2' of the side frame 2,
Since the side frame 2 hits the bottom end of the
As shown in the figure and FIG. 6, descend and make the depth of formwork A shallow. However, when the receiver 10 is turned vertically as shown by the chain lines in FIGS. 2 and 5 and fixed to the support piece 12 with the setscrew 13, the second receiving surface d is aligned with the adjustment part 2' of the side frame 2. In order to reach the lower end, the side frame 2 rises with respect to the bottom plate 1, thereby increasing the depth of the formwork A.

FIG. 11 shows an example of a different formwork A. The formwork A of this example is different in shape from that of the previous example, but the receiver 10 of the side frame 2 and the adjustment part of the side frame are The press-contacting means b of 2' is the same as that of the above-mentioned embodiment, and has the same effect.

12 and 13 show the adjustment portion 2' of the side frame 2.
This shows another embodiment of the receiver 10 that supports the lower end of the base plate 1. In this embodiment, the bottom plate 1 supports an interlocking shaft 14 parallel to its longitudinal direction, and the interlocking shaft 14 has a distance from the center. First receiving surface c with different
and a second receiving surface d are shown in FIGS. 1 and 2.
They are fixed at intervals as shown in the figure, and the adjustment part 2' of the side frame 2 is placed on these, and the interlocking shaft 14 is rotated by a handle (not shown in the drawing) attached to one end thereof, so that the first receiving surface c When the lower end of the adjustment part 2' of the side frame 2 is supported by When the lower end of 2' is supported, the side frame 2 is attached to the bottom plate 1.
In this case, the depth of the formwork A increases.

14 and 15 show still another embodiment of the receiver 10 that supports the lower end of the adjustment part 2' of the side frame 2. In this embodiment, the bottom wall 1 has a groove 15. Support pieces 16 are attached at the same intervals as the receivers shown in FIGS. 1 and 2, and first, second, and third receivers 1 of different heights are installed in the grooves 15 of these support pieces 16.
0a, 10b, and 10c are placed in series as shown in FIG. 15, and the lower end of the adjustment part 2' of the side frame 2 is supported on this receiver.
Either raise and lower the side frame 2 relative to the bottom plate 1 and adjust the depth of the formwork A, or prepare three receivers 10a, 10b, 10c of different heights as shown in Fig. 16 and insert these receivers. Support pieces 16 support the bodies 10a, 10b, 10c.
The depth of the formwork A can be adjusted by placing the side frame 2 on the bottom plate and supporting the lower end of the adjustment part 2' of the side frame 2 on top of the lower end of the side frame 2.

In addition, in FIG. 11, reference numeral 17 is an adjustment base placed on the bottom plate 1, and when used in conjunction with the adjustment device of the present invention, the depth adjustment range is further expanded. The same function can be achieved when used in the formwork A shown in FIGS. 1 to 4.

C. Effects of the invention The device of the invention configured as described above only uses small receivers attached to the bottom plate at predetermined intervals to adjust the depth of the formwork, so the cost of materials for adjustment is extremely low. It is.

Adjustment of the depth of the formwork by converting or replacing the small and light receiver can be done with little effort and time.

Since the depth of the mold is adjusted outside the molding space and does not affect the molding space, the mold maintains the desired accuracy regardless of changes in depth and does not cause slag leakage.

It has the following unique effects.

[Brief explanation of drawings]

Figures 1 to 10 show a first embodiment of the device according to the present invention, in which Figure 1 is a front view of a portion of the formwork in a shallow state, Figure 2 is a vertical side view of the same, and Figure 3 is a front view of a portion of the formwork with the formwork deepened, Figure 4 is a longitudinal side view of the same as above, Figure 5 is an enlarged front view showing how the side frame is supported by one receiver, and Figure 5. FIG. 6 is a longitudinal side view of the same receiver as the above when it is turned horizontally, and FIG. 6 is a longitudinal side view of the same as the above when the receiver is turned vertically. Figure 8 is an enlarged front view of one of the means for press-contacting the side frame to the bottom plate, Figure 9 is a longitudinal side view of the same as above, and Figure 10 is a longitudinal side view of the same as above when the clamping plate is fixed type. figure. FIG. 11 is a vertical sectional side view showing an embodiment of formworks having different shapes. Figure 12~
FIG. 13 shows a second embodiment, and FIG. 12 is an enlarged front view showing how the side frame is supported by one interlocking receiver. FIG. 13 is a longitudinal sectional side view of the same as above. Figures 14 to 16 show the third embodiment,
FIG. 14 is an enlarged vertical sectional side view showing how the side frame is supported by one replaceable receiver. FIG. 15 is a front view showing the composite receiver. FIG. 16 is a front view showing the combination receiver. Figures 17 to 22 are conceptual configuration diagrams showing conventional depth-adjustable formwork, and Figures 17 to 19
The figure shows a formwork using an adjustment base, and Figs.
FIG. 22 shows a formwork using an adjustment frame. A...Formwork, 1...Bottom plate, 2...Side frame, 10...
...receptor.

Claims (1)

[Scope of utility model registration request] In a concrete formwork in which the lower part of the side frame is brought into contact with both sides of the bottom plate to form a forming space, small receivers that can convert the height are attached to the bottom plate at predetermined intervals, and these receivers are attached to the lower end of the side frame. A concrete formwork depth adjustment device characterized by supporting.