JPS6030795Y2 - Bell knob - Google Patents

Description

[Detailed explanation of the invention] In this invention, when the knob at one end is turned to open the door, a sound mechanism built into the knob at the other end is activated, striking the inside of the knob, and the knob itself emits a bell sound. This is how it was done.

Conventional knobs generally have the sole function of opening a door, and some have a lockhole or a button.

However, buzzers and chimes are generally installed completely separately from doorknobs.

By using the knob itself as a bell, this invention has effects other than the mere purpose of calling.

To explain this with reference to the drawings, there is a bracket 2 on the door 1.
is fixed, and the pin 4 protruding from the bracket 2 is connected to the striking arm 3.
1, and is suspended by a tension spring 5 near the position indicated by the solid line in FIG.

The knob 6 is fixed to the knob shaft 7, the angle adjustment plate 8 is fixed to the knob shaft 7, and the cam plate 9 is normally returned to the stop pin 11 position by a return spring 10.

The cam plate holder 12 has a protruding cam plate pin 13, and the cam plate pin 13 rotatably supports the cam plate 9.

Normally, the cam plate holder 12 is fixed at an arbitrary angle in the arcuate groove of the angle adjustment plate 8 so that it is located at the neutral portion indicated by the solid line in FIG.

The bell knob 6' is also fixed to the knob shaft 7 at its center.

Now, when the knob 6 is turned in the direction of the arrow in FIG. However, due to the inertia of the striking arm 3, the other end of the striking arm 3 strikes the inside of the bell knob 6', producing a sound.

When returning the knob 6 to the original neutral position, the cam plate 9 and the striking arm 3
The tip of the striking arm 3 contacts again, but if the force of the return spring 10 is made weaker than the contact force, the striking arm 3 remains almost stationary.

The same operation also occurs when the knob 6 is turned in the opposite direction of the arrow.

By the way, when the door 1 is opened by turning the bell knob 6', the bell sound is attenuated because the door is held by the hand, so the bell sound is not generated, so the sound is emitted only when the knob 6 is turned.

With the above-described configuration, the present invention is clearer than the knocking sound that is made when entering a room at a hotel or office, for example, and eliminates the need for other buzzers.

Furthermore, locks in homes and hotels emit a bell sound when the knob is turned when the user forgets to lock the lock, which is extremely effective in preventing theft and crime.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram of the hammering mechanism of the present invention, and FIG. 2 is an exploded perspective view of one embodiment of the present invention. 1: Door, 2 Nibracket, 3: Hitting arm, 4: Pin, 5
: Tension spring, 6: Knob, 6': Bell knob, 7: Knob shaft, 8: Angle adjustment plate, 9: Cam plate, 10: Return spring, 11 Nist stop pin, 12: Cam plate holder 13=
Cam plate pin.

Claims (1)

[Scope of utility model registration request] When the knob at one end of the door is swung, a striking mechanism built into the knob at the other end is activated to strike the knob, and the knob itself functions as a bell.It also functions as a bell. Knob.