JPS6118976Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a sliding holding structure for an end plate in a formwork for forming a U-shaped side gutter.

The sliding holding structure of the end plate in the conventional formwork for forming U-shaped gutter has a guide rod 7 planted at the end of the inner frame, and a guide tube 6 at the position corresponding to the guide rod 7' of the end plate 4'. ', and the guide rod 7' and guide tube 6' were fitted to hold the end plate in a sliding manner. In the case of this structure, when manufacturing the formwork, the guide rod 7' and the guide tube 6' must be welded separately, so high precision is required for centering them, and If the guide tube 6' is finished roughly, the length of the guide tube 6' cannot be made very long due to its structure, so it cannot absorb the wobbling of the end plate, making it difficult to rotate the threaded rod, and reducing work efficiency.

The present invention eliminates the above-mentioned drawbacks, and provides a sliding holding structure for the end plate that is easy to manufacture and allows smooth opening and closing of the end plate during mold release work and formwork assembly work. The gist is an inverted gutter-shaped inner frame 1, two side plates 2 rotatably screwed to the lower end of the inner frame, and a side plate 2 located at both ends of the inner frame, which covers the inside of the inner frame. In a formwork A consisting of two end plates 4 which are opened and closed by a threaded rod 3 extending through the longitudinal direction, a plurality of partition plates 5 are provided inside both ends of the inner frame with a required interval, respectively. Two guide holes 6 penetrating the partition plate are bored at symmetrical positions with the threaded rod as the center, and the end plate 4 is provided in the guide holes 6.
Sliding of the end plate in a formwork for forming a U-shaped gutter, characterized in that a guide rod 7 installed at a position corresponding to the guide hole 6 is slidably and loosely fitted to hold the end plate 4. in the holding structure.

The interval between the partition plates 5 is appropriately determined depending on the size of the formwork, but it is sufficient to maintain an interval of about 150 mm to 200 mm. The length of the guide rod 7 is set to be slightly longer than the sum of the above-mentioned interval between the partition plates and the opening/closing stroke a of the end plate 4.

To install the guide rod 7 on the end plate 4, a mounting hole 8 is drilled in the end plate 4, a cylindrical or flange-shaped fixing metal fitting 9 is welded from the outside of the end plate 4, and the guide rod is attached to this fixing metal fitting 9. 7 is attached by fixing means such as screws or welding.

During manufacturing, the threaded rod 3 and side plate 2 are attached to the inner frame 1 in which the guide hole 6 is bored in the partition plate 5, and the end plate 5 is also screwed onto the screw rod 3, so that the formwork is almost completed. Insert the guide rod 7 into the guide hole 6 from the mounting hole 8 of the end plate 4.
After inserting the fixed hardware 9 into the guide rod 7 and determining the mounting position, the fixed hardware 9 is welded to the end plate 4,
After that, the guide rod 7 is fixed to the fixed hardware 9.

Since the present invention has the above-mentioned configuration, it is easy to manufacture and has high precision, and since the length of the guide rod 7 and the distance between the partition plates 5 that support it can be set sufficiently, the end plate can be easily manufactured. This has the effect that the sliding movement (4) can be performed smoothly.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a conventional formwork, Fig. 2 is an explanatory diagram of a conventional sliding holding structure, Fig. 3 is a partially cutaway perspective view of a formwork to which the sliding holding structure of the present invention is applied, and Fig. 4 is a perspective view of a conventional formwork. The figure is an explanatory diagram of the main parts. 1: Inner frame, 2: Side plate, 3: Threaded rod, 4: End plate,
4': End plate, 5: Partition plate, 6: Guide hole, 6': Guide pipe, 7: Guide rod, 7': Guide rod, 8: Mounting hole,
9: Fixed hardware, A: Formwork, a: Opening/closing stroke.

Claims (1)

[Scope of utility model registration request] An inverted gutter-shaped inner frame 1, two side plates 2 each rotatably screwed to the lower end of the inner frame, and a side plate 2 located at both ends of the inner frame to extend the inside of the inner frame in the longitudinal direction of the inner frame. In a formwork A consisting of two end plates 4 which are opened and closed by threaded rods 3 inserted through them, a plurality of partition plates 5 with a required interval are provided inside both ends of the inner frame, and the partition plates are separated. Two penetrating guide holes 6 are drilled at symmetrical positions around the threaded rod, and the guide holes 6 include:
A guide rod 7 installed in a position corresponding to the guide hole 6 of the end board 4 is slidably and loosely fitted to hold the end board 4 in a formwork for forming a U-shaped side gutter. Sliding retention structure.