JPS582806Y2 - Lip groove type steel connection fitting - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a lip groove type steel fastening fitting used for the purlin rim of a steel structure.

The aim is to provide a metal fitting that can freely and easily attach the lip groove type steel to the target object at any desired location without drilling or welding the brain membrane.

Normally, in order to attach the purlin rim etc. of lip groove type steel to columns, beams, etc., drill bold holes in the brain membrane of lip groove type steel according to the layout dimensions of the columns, beams, etc., and then bolt them to the columns, beams, etc. A method is used in which the corrugated plates with holes are welded and then assembled and connected on site.

This is an easy task for a structure with a simple shape, but for a structure with a complex shape, especially one with many different shaped openings in the wall, it is necessary to It is necessary to make many different types of assembly materials with different mounting methods, which is time-consuming and prone to mistakes.

Furthermore, when assembling this on-site, the necessary assembly materials must be picked out one by one from a large number of different assembly materials according to the order of assembly, and this also takes a considerable amount of time.

Furthermore, if the hole position is misaligned or the hole is drilled incorrectly, not only will assembly become difficult, but repair will also be difficult since the base material is a thin plate.

In view of the above-mentioned problems, the present invention is designed so that the processing of lip groove steel purlins, etc. at the factory is basically limited to measuring and cutting the length, and when assembling it on site, it is possible to The objective is to provide a metal fitting that can be attached freely and easily at any location depending on the bolt hole position.

Details will be explained below using figures.

As shown in Fig. 1 - Cross-sectional view of the cross-sectional view, a large number of sharp points made of a material with higher hardness than the lip groove type steel are provided at the lip contact area, spanning almost the entire cross section of both lip parts on the inner surface of the groove of the lip groove type steel 5. A plate having a joint edge with serrated front teeth is used as a presser plate 1, and a lip portion of lip groove type steel is sandwiched between this presser plate and a plate 6 that spans the lip portions on both sides, which is an object to be hit. By connecting and tightening these with bolts and nuts, the tip teeth arranged on the presser plate bite into the lip part, making it possible to prevent the lip groove type steel from sliding back and forth and from side to side, and to attach it with sufficient strength.

In this case, it goes without saying that the holding plate 1 and the bolt nut 2 have a thickness and shaft diameter sufficient to withstand the load applied to the lip groove type steel that is heavily attached, but the lead plate 1 and the bolt nut 2 that are Since the holding plate 1 spans almost the entire cross section of the lip portion, the hanging load is directly received at one end of the holding plate.

Therefore, the pointed teeth provided on the holding plate 1 serve to prevent the lip groove type steel from sliding or deforming under load.

The head of the bolt 2 is temporarily fixed to the holding plate 1 to prevent Li*6O during tightening.

To insert this into the groove of the lip groove type steel 5, press the holding plate 1.
This is done by placing the inside of the lip with the longitudinal direction parallel to the groove, turning it 90 degrees at a position diagonal to the cross section of the lip groove steel section, and returning both ends to the lip side.

For this reason, the diagonal length of the rear surface of the holding plate 1 is slightly shorter than the diagonal length of the cross section of the channel steel.

On the other hand, since the constant length of both ends of the holding plate 1 in the transverse direction is parallel to the base of the lip of the lip groove type steel 5, when tightening the bolt nut, Li*6r; There is no risk of it falling off.

As described above, the present invention eliminates the need to drill holes in factories for lip groove type steel used for purlins, rims, etc. of steel structures, eliminates work stagnation due to bolt hole misalignment during on-site assembly, and
It brings great benefits in various aspects, such as preventing structural damage caused by on-site correction of misaligned holes, and facilitating and streamlining on-site response work by freely and easily tightening lip groove steel at any location. It is something.

[Brief explanation of drawings]

FIG. 1 is a sectional view of the connection, and FIG. 2 is a plan view. 1... Holding plate, 2... Bolt, 3...
...Natsuto, 4...Washer, 5...
Lip groove type steel, 6... Extrusion plate.

Claims (1)

[Scope of utility model registration request] Spreading over almost the entire cross section of both lip parts on the inner surface of the groove of the lip groove type steel, the lip contact part has a connecting edge in which a large number of pointed teeth made of a material with higher hardness than the lip groove type steel are arranged in a sawtooth pattern. A plate is used as a holding plate, and the lip part of the lip groove type steel is inserted between the holding plate and the plate that spans the lip parts on both sides, which are the objects to be hit, and the lip groove type steel is connected and tightened with bolts and nuts. 1. A lip groove type steel heavy fitting comprising the above-mentioned presser plate and a bolt nut.