JPH04218Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The invention is designed to
This invention relates to a pivot hinge raising part that can raise the height of a pivot hinge that pivotally supports a swinging opening/closing type door.

[Conventional technology]

Generally, in buildings where the door is supported on a steel door frame via a pivot hinge so that it can swing open and close, the floor finish layer is changed from rubber tiles, vinyl chloride tiles, etc. to a carpet finish. In this case, the pivot hinge is raised by the amount of increase in the thickness of the floor finish layer due to the thickness of the carpet. In other words, the pivot of the pivot hinge is integrally connected to the steel door frame, so in order to replace the pivot hinge with one that matches the floor height after changing the finish layer, it is necessary to remove the concrete from the wall. Therefore, major construction work would be required to remove the steel door frame. For this reason, changing the finishing layer of the floor surface has conventionally been dealt with by raising the height of the pivot hinge.

Specifically, as shown in FIG. 5, the height of the pivot hinge was increased by sandwiching the seat plate a under the thrust bearing b.

[Problem that the invention attempts to solve]

When using the conventional seat plate method as above, 5~
Although it was possible to raise the height by about 10 mm, it was impossible to raise the height further. In other words, the thicker the seat plate a becomes, the shorter the effective axial length of the pivot c becomes.
The depth of engagement between the hole f of the hinge member e attached to the door d and the pivot c is insufficient, and the door d cannot be pivoted. Therefore, depending on the thickness of the carpet g, large-scale construction work such as removing the steel door frame was unavoidable.

An object of the present invention is to provide a new and useful pivot hinge raising component that can solve the problems of the prior art.

[Means for solving problems]

In order to achieve the above object, the present invention provides an upper surface of the seat plate portion having a hole on the lower surface that fits into the pivot of the pivot hinge, which is concentric with the hole and whose outer diameter is larger than the inner diameter of the hole. A pivot hinge raising part is constructed by protruding a slightly smaller pivot.

[Effect]

According to the above structure, when the pivot hinge raising part is attached to the existing pivot hinge, that is, when the hole in the seat plate part is fitted over the pivot of the existing pivot hinge, the upper surface of the seat plate part The protruding pivot fits into the hole of the hinge member on the door side, and the depth of engagement between the two is kept constant regardless of the raised height.

〔Example〕

Hereinafter, embodiments of the present invention will be described based on the drawings.

Fig. 1 is a perspective view of the pivot hinge raising part A according to the present invention, Fig. 2 is a sectional view showing the pivot hinge B before raising the height, and Figs. 3 and 4 show the pivot hinge raised using the pivot hinge raising part A. They are a perspective view and a sectional view.

In Figure 2, 1 is the existing pivot hinge B
A pivot 2 is a hinge member attached to the door 3, and has a hole 4 that fits into the pivot 1. 5 indicates a thrust bearing.

The pivot hinge raising part A is shown in FIG.
As shown in FIGS. 3 and 4, on the upper surface of the seat plate portion 7, which has a circular hole 6 on its lower surface that fits externally into the pivot 1, a hole 6 that is concentric with the hole 6 and whose outer diameter is It is constructed by protruding a pivot 8 whose inner diameter is slightly smaller than the inner diameter of the pivot 6. Specifically, the outer diameter of the pivot 8 is set to 11.5 mm, and the inner diameter of the hole 6 is set to 12 mm, but these should be set appropriately.

According to the above configuration, for example, when the finishing layer of the floor surface is changed from rubber tiles or vinyl chloride tiles 9 as shown in FIG. 2 to thick carpet 10 as shown in FIG. Place the raised part A on the pivot 1 of the existing pivot hinge B.
At the same time, the lower stile of the door 3 is removed by the amount of increase in floor height, or the door 3 is replaced with one with different vertical dimensions.
The height can be increased by changing the mounting position of the hinge member 2 and fitting the hole 4 of the hinge member 2 onto the pivot 8 of the pivot hinge raising component A.

In this case, even if the thickness of the seat plate portion 7 is increased and the raised height is increased, the depth of engagement between the hole 4 of the hinge member 2 and the pivot 8 remains constant, so the door 3 The pivot is certain.

Although the pivot hinge raising part A is made of metal, it may also be made of resin that is highly wear resistant and has a low coefficient of friction.

[Effect of idea]

As described above, if the pivot hinge raising part according to the present invention is used, the pivot provided protruding from the upper surface of the seat plate part of the pivot hinge raising part will fit into the hole of the door side hinge member, and the fitting of both will be achieved. The depth remains constant regardless of the raised height.

Therefore, even if the raised height is increased, the door pivot will not become unstable, and even if the floor height changes significantly by changing the floor finish specifications, this can be easily handled. It is.

[Brief explanation of drawings]

FIG. 1 is a perspective view of a pivot hinge raising part according to the present invention, FIG. 2 is a sectional view showing the pivot hinge before raising the height, and FIGS. 3 and 4 are perspective views of the pivot hinge raised using the pivot hinge raising part. FIG. FIG. 5 is a sectional view showing a conventional example. A... Pivot hinge raising part, 6... Hole,
7... Seat part, 8... Pivot.

Claims (1)

[Scope of utility model registration request] A pivot hinge raising part, which has a pivot on the upper surface of a seat plate part that has a hole on the lower surface that fits into the pivot of the pivot hinge, and a pivot that is concentric with the hole and whose outer diameter is slightly smaller than the inner diameter of the hole. .