JPH034486Y2 - - Google Patents

Description

[Detailed explanation of the invention] A. Purpose of the invention (industrial application field) This invention is a simple and reliable formwork for manufacturing various concrete products in the civil engineering and construction industries. The present invention relates to a support device that can be supported by a person.

(Prior art) Conventionally, in the civil engineering and construction industries, when manufacturing various concrete products, protrusions were provided intermittently on the flange around the receiving hole as a means of supporting the embedded material within the formwork. A set holder in which the plate is bent slightly elastically so as to face one side, and the inner periphery of the receiving hole is also slightly bent in the same direction is known from Japanese Utility Model Publication No. 49-41493. However, due to its structure, this set holder can only support round bars, and
Since it is not possible to support a long embedded object like the rain barrier shown in the figure, in the industry, when supporting this type of embedded object, the window hole of the formwork 4 as shown in FIGS. 9 and 10 is By taking out the support part 1 of the implant 3 from 5, drilling a hole 6 in this part that matches the outer surface of the formwork 4, and inserting a fixing pin 7 into this hole 6,
A means for supporting the implant 3 on the formwork 4 is adopted.

(Problems to be Solved by the Invention) The conventional implant support means described above is cumbersome to operate because a number of holes are drilled in the support part of the implant and a pin is inserted into each of these holes. Not only does it take time to support the implant, but in the case of a rain barrier, water enters through the holes drilled in the support part, reducing the water-stopping function, and the support part becomes weak and damaged due to the holes being drilled. There are some easy problems.

The present invention was made in order to solve the above-mentioned conventional problems, and the support part of the implant that is exposed through the window hole of the formwork is supported by a receiving piece and a holding piece that is pressurized by a spring. By clamping, long implants can be reliably supported with simple operations and without taking much time.
In the case of a rain barrier, the water stop function is perfect,
The object is to provide a support device that does not cause damage to the support part.

B. Structure of the invention (means for solving the problems) The means of the invention for achieving the above-mentioned purpose are as follows: A receiving piece is fixed to one side outside the window hole so as to receive one side of the support part of the implant, and a receiving piece is fixed to the other side of the window hole and is pressed against the other side of the support part by a spring to support the support part. a holding piece to be held between the holding piece; a relief position that is provided oppositely to the lower part of the holding piece to separate the holding piece from the supporting part of the implant; and a return position that hits the supporting part of the implant. The present invention provides an embedded object support device for a concrete formwork, which is provided with a release means for a holding piece to remove the pressure.

(Function) The device of the present invention configured as described above pushes up the holding piece by means of the release means, and maintains a gap between this and the receiving piece into which the supporting part of the implant is inserted. Then, insert the supporting part of the implant into the window hole of the formwork from the inside, and when the tip of the supporting part rests on the receiving piece outside the formwork, if you lower the relief means, the holding piece will be inserted by the spring. It is pressed against the support part of the object and clamps and fixes the support part between it and the receiving piece. Once the embedded material is fixed to the formwork in this way, the formwork is filled with concrete,
When a product with an embedded object is molded and removed from the mold, if the holding piece is released away from the support part of the implant using the release means, the support part will be removed as the product is removed from the mold. It can be easily pulled out from the window hole of the formwork.

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

Drawings 1 to 6 show examples of concrete formwork in which the entrance side is wider than the back side. In the figure, 8 is the formwork for forming concrete products,
A support part 11 of a long implant 10 such as a rain barrier is inserted into the key point, and a window hole 12 is provided through which the tip thereof can be seen outside the formwork 8.

Reference numeral 14 denotes a receiving piece of the support part 11 fixed to the formwork 8 on the outside of one of the window holes 12 described above, and the support part 11 is inserted into the window hole 12 with its upper surface aligned with the lower edge of the window hole 12. Then, the lower surface of the tip rests on the receiving piece 14 so that it can be received there.

15 is the other outside of the window hole 12,
A vertical piece a of the L-shaped member 17 whose both ends are supported by a pair of guides 16, 16 as shown in FIGS. A plurality of pins 18, 18 are installed upright on the horizontal piece b of the L-shaped piece 17, and these pins 18,
The springs 21, 21 are installed between the spring seats 19, 19 of 18 and the flange 20 of the formwork 8 described above to press the holding piece 15, and the holding piece 15 and the receiving piece 14 are
The supporting portion 11 of the implant 10 is held between the two, and the holding piece 15 has unevenness 23, 23 on the lower edge as shown in FIGS. 5 and 6 to ensure that it does not slip. It is designed to ensure that the situation is properly suppressed.

Reference numeral 24 denotes a release means for the above-mentioned holding piece 15, which uses an L-shaped rod inserted into a hole 27 with a notch 26 in a bracket 25 fixed to the formwork 8 on the lower side of the receiving piece 14, and A stopper 28 larger than the hole 27 is attached to the upper end of the shaped rod to prevent it from falling out of the hole 26, and a pin 29 is attached in the middle to keep the L-shaped rod away from the support part 11 of the implant 10. When pushed up, the pin 29 passes through the notch 26 and emerges above the bracket 25, and when the L-shaped rod is turned slightly, it engages the bracket 25 and holds the L-shaped rod in the pushed-up position.

Note that this release means is not limited to the structure that releases and returns the presser piece 15 by raising and lowering as described above, but releases and returns the presser piece 15 by moving forward and backward, rotating, etc. Similar effects can be obtained even if a wedge type, cam type, or other structure is adopted.

FIG. 7 shows another embodiment, whereas the embodiment shown in FIGS. 1 to 4 uses a formwork 8 that is wider on the entrance side than on the back side and has an inclined bottom surface. In this embodiment, the back side is wider than the opening side, the bottom surface is horizontal, and a large L-shaped member 30 is attached to the outside, and a support hole 31 of the relief means 24 is provided in this L-shaped member 30. Although this embodiment is different, the other configurations are the same as those of the embodiment described above, and the same effects can be achieved.

The device shown in the embodiment described above has a window hole 12 in the formwork 8.
When setting a long implant 10 such as a rain barrier, the release means 24 which is lowered as shown in FIG. 1 and the stopper 28 is engaged with the bracket 25 is moved with the pin as shown in FIG. 2. 29 passes through the notch 26 and is pushed up until it emerges above the bracket 25, the release means 24 pushes up the L-shaped member 17 with its upper end as shown in the same figure, and the presser piece 15 attached thereto supports the implant 10. A gap is formed between the two parts through which the supporting part 11 of the implant 10 can easily pass.
When the release means 24 is turned until the pin 9 engages with the upper surface of the bracket 25, the relief means 24 is stopped by the pin 29.

Therefore, the filling material 1 is inserted into the window hole 12 of the formwork 8 from the inside.
0 support part 11 is inserted, and the support part 11 is connected to the receiving piece 14.
When the pin 29 that engages the bracket 25 is aligned with the notch 26 by rotating the relief means 24, the relief means 24 is lowered to the position shown in FIG. 1 of the drawings. Along with this, the L-shaped member 17 is pressed by the spring 21 and lowers, and the holding piece 15
Since the support part 11 is pressed against the support part 11, the support part 11 is held between the holding piece 15 and the receiving piece 14, and the implant 10 is
is securely fixed to the formwork 8 so as not to move unexpectedly when filling with concrete.

Once the embedded material 10 is fixed in this way, concrete is filled into the formwork 8 to form a product 9 in which the embedded material is embedded.
4, push up the presser piece 15 and release the support part 1.
1 and held in this state by pins 29, the support part 11 can be easily removed from the window hole 12 when the product 9 is demolded.

C. Effects of the invention As mentioned above, the device of the present invention can fix and release even long implants in the formwork with a single touch, and not only greatly improves molding efficiency, but also enables Fixing the implant by holding it between the two is stable and allows for accurate embedding into the product. Moreover, unlike conventional pinning, there is no need to drill a hole in the support, so in the case of a rain barrier, there is no need to drill a hole in the support. Since there is no water intrusion, the water-stopping effect is perfect, and the support part is not damaged, which is a unique effect.

[Brief explanation of drawings]

FIG. 1 is a vertical sectional side view showing an embodiment of the device related to the present invention. Fig. 2 is a vertical sectional side view with the retaining piece shown above missing. Figure 3 is a front view of the same as above. FIG. 4 is a sectional view taken along the - line in FIG. 3. FIG. 5 and FIG. 6 are front views of a portion showing the unevenness formed on the same pressing piece as above. FIG. 7 is a longitudinal sectional side view of another embodiment. Figure 8 is a cross-sectional view of a part of a concrete product in which embedded materials are embedded. FIG. 9 is a longitudinal sectional side view of a conventional implant support device. FIG. 10 is a front view of the same as above. 8... Concrete formwork, 10... Embedded material, 1
1...Support part, 12...Window hole, 14...Socket piece, 1
5... Holding piece, 24... Escape means.

Claims (1)

[Scope of utility model registration request] a window hole provided in the concrete formwork through which the supporting part of the embedded object can be seen to the outside; a receiving piece fixed to one side of the outside of the window hole so as to receive one side of the supporting part of the embedded object; and a window hole. a holding piece that is pressed against the other surface of the supporting part by a spring to sandwich the supporting part between the receiving piece; An insert support device for a concrete formwork, characterized in that it is provided with a release means for a holding piece that allows the holding piece to take a release position where it is separated from the support part and a return position where it comes into contact with the support part of the embedded material.