JPS5910245Y2 - Large underwriting bracket - Google Patents

Description

[Detailed explanation of the idea] This invention relates to large underwriting fittings.

Conventional large underlay metal fittings were shaped like grooves, and the large undercarriage was fixed with nails inserted through the nail holes in both flanges.

Therefore, a nailing process was required, and there was also the problem of squeaks caused by friction.

For this reason, large underlay sheets and needle caps have been installed to prevent squeaks, but there has been a problem in that the installation is complicated.

In addition, a groove-shaped large support fitting has conventionally been proposed in which cut and raised protrusions are provided on the inner surfaces of both flanges, and the cut and raised protrusions are bitten into the large part.

According to this, construction is easy and squeaks are also prevented.

However, unlike fixing with nails, a short cut-and-raised protrusion is dug into the main support, so the fixation may be incomplete due to a slight opening of the main support fitting.

In addition, the fixation against the longitudinal movement of Ohiki is insufficient,
There is a drawback that the cut and raised protrusions are likely to come off the daihiki due to longitudinal movement.

Therefore, the purpose of this invention is to provide a large undercarriage fitting that is easy to construct and securely fixed.

An embodiment of this invention will be explained with reference to FIGS. 1 to 3.

That is, this large underwriting fitting 9 has a groove-shaped large holding part 10.
A protrusion 11 is cut upwardly on the web portion of the groove and faces perpendicular to the longitudinal direction of the large drawer, and a protrusion 13 is cut downwardly on the inner side of both flanges 12 of the groove-shaped large drawer holding portion 15. ,
The upward cut and raised protrusions 11 and the inner downward cut and raised protrusions 13 are cut into the bottom and side surfaces of the large puller 14, respectively, so that they are fixed to the large puller 14.

One end of the large pulling mounting portion 10 is externally fitted onto the large drawing holding portion 15.

The large undercarriage fitting 9 is fixed to the floor beam 4 by the web portion of the large holding part 15.

As a result of this configuration, the large pull 14 can be fixed by a simple operation of just press-fitting the large pull 14 into the large support fitting 9.

In addition, since the groove-shaped large tension holding part 10 is fitted onto the groove-shaped large tension holding part 15, both flanges 12 of the large tension clamp holding part 15
This is prevented from spreading by the large-drawing placement section 10.

Therefore, it is reliably prevented that the flanges 12 are widened and the inner downward cut-and-raised protrusions 13 are prevented from coming off from the main puller 14.

Furthermore, since it is a combination of the groove-shaped large pulling clamp holding part 15 and the large pulling holding part 10, it has the advantage that it can be manufactured easily by forming these separately and later fixing them to each other. .

In particular, the raised projections 11.13 can be easily formed by shaping them before combining the two.

Furthermore, there is an advantage that movement of the large puller 14 in the longitudinal direction can be prevented by the upwardly cut and raised protrusion 11 of the large puller mounting portion 10.

Since the large pulling clamp holder 15 is fixed to the floor beam 4 on the outer surface of the web,
The head of the fixing bolt protrudes from the inner surface of the web, and therefore the end face of the large pull 14 cannot be brought into contact with the web portion of the large pull clamp holder 15 to prevent longitudinal movement of the large pull 14.

Further, the downwardly cut and raised protrusion 13 of the large pull support portion 15 is
Since it faces parallel to the longitudinal direction of 4, if a longitudinal load is applied, there is a risk that cracks will occur in the outer pull 14, and movement in the longitudinal direction cannot be sufficiently prevented.

However, since the upward cut-and-raised protrusion 11 of the large pull placement part 10 faces perpendicularly to the longitudinal direction of the large pull 14, the longitudinal movement of the large pull 14 can be reliably prevented.

In this way, in addition to the ease of construction for fixing the main drawer 14, reliable fixation is achieved from various viewpoints.

As described above, the large tension support fitting of this invention includes a groove-shaped large tension support part that fits into the end surface of the large tension support and both side surfaces of the end, and one end of which fits externally into the large tension support part. an upward groove-shaped large pull mounting part that is fixed integrally with the support part and on which the end of the large puller is placed; Since the upper surface of the web of the mounting member is provided with an upward cut-and-raised protrusion that faces perpendicular to the longitudinal direction of the mounting member, construction is easy and fixing is reliable, and manufacturing is easy. It has the effect of being simple.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of an embodiment of this invention attached to a floor beam, FIG. 2 is a perspective view of its large underpinning fitting, and FIG. 3 is an explanatory view of its use. 9...Large underwriting fitting, 10...Large holding part, 11...Upward cut-and-raised protrusion, 12...
...flange, 13...inward downward cut and raised projection, 14...large pull, 15...large pull clamp holding part.

Claims (1)

[Scope of utility model registration request] a groove-shaped large pull support part sized to fit on both sides of the end of the large pull; one end of the large pull support part fits externally into the large pull support part and is fixed integrally with the large pull support part; an upwardly facing groove-shaped large tension mounting section on which the large tension support is placed; an inner downward cut-and-raised protrusion provided on the inner surface of both flanges of the large tension supporting section; A large undercarriage fitting with an upward cut-and-raised protrusion that is shaped to face vertically.