JPH0448935Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a tightening tool for a metal fitting for water pipes.

[Prior Art] When a water faucet is installed directly on a wall, such as in a bathroom, a lifting fitting 7 as shown in FIGS. 5 to 7 is used. This lifting fitting 7 has a male threaded portion 10 at one end of the cylindrical body, and a flange portion 11 provided with a screw attachment hole 13 at the rear end.
It further has a female screw part 10 for attaching a faucet member on the inner surface of the rear end, and is inserted into the through hole 14 from the inside of the wall 6 (indoor side) and the tip screw part 10 is attached to the outside of the wall (indoor side). The flange portion 11 that is in contact with the wall surface is further fixed to the wall 6 with wood screws 15 through the screw attachment holes 13. Then, the faucet member 9 is attached to the bringing-out fitting 7 attached in this manner.

Conventionally, the lifting fitting 7 is attached to the water pipe 8 by an operator grasping the flange part 11 with his/her hand and tightening it into the water pipe.
Because it is circular, it is easy to slip, and in the latter half of tightening, the flange comes close to the wall surface, making it difficult to grasp the flange by hand.
This tightening itself is incomplete, and is likely to cause water leakage.

The present invention was devised in view of these conventional difficulties, and aims to provide a fastening tool that can easily tighten a lifting metal fitting.

[Means for Solving the Problem] For this reason, the present invention utilizes the screw mounting hole of the ejecting metal fitting to easily and reliably tighten the ejecting metal fitting. That is, it has a plurality of protrusions on the front surface that can be engaged with the screw attachment holes of the flange part of the lifting fitting, and also has a handle part for rotational operation, and each of the protrusions has a tapered part. In addition, its basic feature is that a short shaft portion is provided at the tip of the tapered portion.

[Function] Each protrusion engages with each screw mounting hole formed in the flange of the lifting fitting, and by turning the tightening tool through the handle, the lifting fitting can be tightened against the water pipe. can.

The screw mounting hole provided on the flange of the lifting bracket is formed for a wood screw, and its inner surface is configured such that the entrance side of the wood screw tip is tapered in the thickness direction of the flange, and the exit side is straight.
Each of the protrusions described above tightly engages with each screw mounting hole of such a configuration.

[Embodiment] FIGS. 1 and 2 show an embodiment of the present invention.

The fastener has a disc-shaped body 1 on the front surface thereof.
It has a plurality of protrusions 2 that are to be respectively engaged with a plurality of screw attachment holes formed in the flange portion of the ejector.

Each of the protrusions 2 has a tapered portion 4 on the tip side, and further has a straight short shaft portion 5 at the tip of the tapered portion 4.

A handle portion 3 for rotational operation is provided on the back of the main body 1 via a shaft portion.

3 and 4 show the state in which the fastener A of the present invention is used, in which the lifting fitting 7 is fitted into the through hole 14 of the wall 6, and the threaded portion 10 of the tip is inserted into the through hole 14 of the wall 6.
After screwing into the water pipe 8 by a predetermined amount by hand, insert the protrusion 2 of the fastener A into the screw mounting hole 13 provided in the flange part 11 of the lifting fitting 7 and engage it with the inner surface of the handle. The lifting fitting 7 is screwed in by turning the tightening tool by hand using part 3.

Here, as shown in FIG. 7 (enlarged view of the inside of the circle), each screw mounting hole 13 is formed on the entrance side of the wood screw tip in the thickness direction of the flange portion in order to fit the head of the wood screw 15 well. The inner surface is the tapered surface 13
1, the inner surface on the exit side of the wood screw tip is configured as a straight surface 132, and the protrusion 2 inserted into the screw mounting hole 13 has its tapered portion 4 aligned with the tapered surface 131, and its short shaft portion 5 are closely engaged with the straight surfaces 132, and thereby, each protrusion 2 does not come off from the screw mounting hole 13 during use of the tightening tool 1, and smooth tightening work can be performed. .

[Effects of the invention] According to the invention described above, it is possible to easily and reliably tighten the lifting fitting by using the screw mounting hole of the lifting fitting, and therefore, this type of work can be carried out efficiently. In addition, there is an advantage that water leakage due to insufficient tightening can be appropriately prevented by completely tightening the bolt.

[Brief explanation of the drawing]

1 and 2 show an embodiment of the present invention, with FIG. 1 being a side view and FIG. 2 being a front view.
3 and 4 show the state in which the fastener of the present invention is used, with FIG. 3 being a half sectional view and FIG. 4 being a partially enlarged view of the protrusion engaging portion in FIG. 3. FIG. 5 is an explanatory diagram showing a faucet mounting structure using a bringing-out metal fitting. FIG. 6 is a perspective view of the lifting metal fitting. FIG. 7 is a half-sectional view showing the mounting state of the lifting metal fitting. In the figure, 1 is a main body, 2 is a projection, 3 is a handle portion, 4 is a tapered portion, and 5 is a short shaft portion.

Claims (1)

[Scope of utility model registration request] It has a plurality of protrusions on the front surface that can be engaged with the screw mounting holes of the flange part of the lifting fitting, and also has a handle part for rotational operation, and each of the protrusions has a tapered part, and the protrusions have a tapered part. A tightening tool for a water pipe take-out fitting having a short shaft portion at the tip of a tapered portion.