JP3204134U - Bolt screw with spring flange. - Google Patents

Abstract

Provided is a bolt screw provided with a flange spring so that the spring of the flange absorbs the vibration and the screw of the bolt provided on the member is not loosened even if the member receives vibration. A flange 2 is provided at one end of a bolt 1 provided with a screw 3, and the end of the flange 2 is provided with a step by being lowered from the bottom surface 9 of the bolt, and the flange 2 provided at one end of the bolt 1 is provided. A groove 4 is provided at the boundary between the back surface and the bottom surface 9 of the bolt, and a plurality of kerfs 5 are provided around the outer periphery of the flange 2. [Selection] Figure 6

Description

  The present invention relates to a bolt screw provided with a flange spring in which a plurality of grooves are provided at one end of a flange of a bolt screw provided with a flange, and the flange is made into a spring.

  Since the conventional bolt screw with a flange has a large contact area when the screw is tightened, if vibration is transmitted to the flange bolt screw with the member tightened, the flange bolt There was a defect that vibration was transmitted directly to the screw and it was easy to loosen.

Problems that the device tries to solve

  In order to eliminate the drawbacks of the present invention, a plurality of grooves are provided at one end of the flange provided on the bolt to make the flange a spring, and the bolt of the bolt of the flange is tightened on the member. When the same pressure is applied to the surface of the member and vibration is transmitted to the flange bolt screw, the flange spring absorbs the vibration and the bolt screw does not loosen.

Means for solving the problem

B. Provide a flange (2) at one end of the bolt (1) with the screw (3) and lower the outer circumference of the end of the flange (2) downward from the bottom surface (9) of the bolt to make a step. It is provided.
(B) A groove (4) is provided at the boundary between the back surface of the flange (2) and the bottom surface (9) of the bolt, and a plurality of grooves (5) are provided around the outer periphery of the flange (2).

Implementation and form of device

When the bolt ▲ 3 ▼ provided with the flange ▲ 2 is passed through the member ▲ 7 ▼, the bolt ▲ 3 ▼ is inserted into the screw hole of the nut ⑥ and the bolt ▲ 3 ▼ is tightened first. When the outer edge of the flange (2) hits the member (7), turn the bolt (1) strongly and tighten the screw (3), the flange (2) bends from the groove (4) and the bottom of the bolt (9) The surface of the member (7) is pressed firmly and the spring flange (2) is expanded by continuously pressing the surface of the member (7) with the pressure of the elastic spring, and the screw of the hole of the nut (6) and the flange Screws {3} of bolt {circle around (1)} provided with {circle over (2)} are strongly meshed with the inclined surfaces of the screws.
Therefore, even if the bolt screw (3) receives vibration, the spring of the flange (2) absorbs the vibration and the screw of the bolt (1) provided with the flange (2) fitted to the screw of the hole of the nut (6). (3) prevents the screw (3) of the bolt (1) provided with the flange (2) from loosening because the inclined surfaces of the screws continue to be strongly pinched.

Effect of device

The screw {3} of the bolt {circle around (1)} provided with the flange {circle around (2)} eliminates the trouble of attaching a spring washer to the screw {circle around (3)}.
When the screw (3) of the bolt (1) provided with the flange (2) is loosened to the member (7), the spring of the flange (2) can be applied to the member (7) and tightened, and the screw (3) The spring of the flange {circle around (2)} absorbs the vibration even when the screw is subjected to vibration, and the screw {3} of the bolt {circle around (1)} provided with the flange {circle around (2)} is prevented from loosening.
When the screw (3) of the bolt (1) provided with the flange (2) is strongly tightened, the area of the outer circumference of the screw (3) holding the surface of the member (7) is increased over the spring of the flange (2). Even if vibration is transmitted to the screw (3) of the bolt (1) provided with the flange (2), the spring of the flange (2) absorbs the vibration and the screw (3) There is an effect to prevent the loosening of the.
Also, the edge of the space of the plurality of grooves (5) provided at the end of the flange (2) is pressed firmly against the surface of the member (7), and the strong resistance force pressing the member (7) is Screw (3) becomes a detent.

The present invention can do the following:

A plurality of grooves (5) provided around the outer periphery of the flange (2) are dug around the outer periphery of the flange (2) to provide grooves.
As shown in FIG. 3, a flange (2) formed on a spring by providing a plurality of grooves (5) can be used at one end of a nut (8) provided with a hole screw.

  1 is a side view.   2 is a rear view   3 is a side view.   4 is a plan view.   Figure 5 is a side view with a part cut   6 is a side view.

1, bolt 2, flange 3, screw 4, central groove 5, groove 6, nut 7, member 8, nut 9 provided with a flange spring, bolt bottom

Claims (1)

The flange (2) is provided at one end of the bolt (1) provided with the screw (3), and the end of the flange (2) is lowered from the bottom surface (9) of the bolt and provided with a step.
A groove (4) is provided at the boundary between the rear surface of the flange (2) provided at one end of the bolt (1) and the bottom surface (9) of the bolt, and a plurality of grooves (5) are formed around the outer periphery of the flange (2). Provide.
A bolt screw with a flange spring made by integrating the flange spring and bolt screw with the above configuration.

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