JPS5926410Y2 - Waterproof knob operation structure - Google Patents

Description

[Detailed description of the invention] This invention is a device that operates a switch, a volume control, etc. installed inside the frame by rotating a knob provided outside the frame, using a mechanical transmission means such as a rotating shaft. The structure relates to a structure that prevents liquids such as water from entering the frame body in which switches, volume controllers, etc. are housed from the outside of the frame body. Even if a part breaks down, it can be easily replaced, and it has a structure that does not use O-rings, grease, adhesives, etc.
Furthermore, it is an object of the present invention to provide waterproofing with a simple structure in which the waterproof part is not easily visible from the outside.

Generally, most conventional knob operating mechanisms that require waterproofing of this type are constructed as shown in FIG. 1 or 2.

In the case of the structure shown in FIG. 1, an adhesive 3 is required between the frame 1 and the bushing 2, and a sealing material such as grease is required on the sliding surfaces of the bushing 2 and the rotating shaft 4. 5 was not applied, the waterproof effect was incomplete.

Note that 6 in the figure represents a knob and 7 represents a switch.

In addition, the structure shown in FIG. 2 does not require any adhesive, but does require a sealing material 5 such as grease on the sliding surfaces of the O-ring 8 and the rotating shaft 4. Since the cap nut 9 for holding the O-ring was also required, the rib 10 protruding from the outer periphery of the shaft hole of the frame 1 required threading, etc., so it was difficult to process and assemble. It was time consuming.

Furthermore, since the O-ring 8 must be pressed with a cap nut 9 or the like on the threaded portion 11, the dimensions become larger, and the shaft 4 also becomes longer. The appearance of the buildings was also deteriorating.

The present invention eliminates these conventional drawbacks, and one embodiment thereof will be described below with reference to the drawings.

FIG. 3 shows an electrically heated Western-style toilet that adopts the waterproof knob operation structure of the present invention, where 12 is the toilet bowl, 13 is the toilet seat, and 14
1 is a lid, and 15 is a case-like frame body fixed on the toilet bowl 12 and having a toilet seat 13 and a lid 14 pivotally connected thereto.

This toilet seat 13 has a heater inside, a control device for the heater is provided in the frame 15, and a knob 16 provided on the side of the frame 15.
It can be adjusted by

4 is an exploded perspective view of the knob 16 provided on the side surface of the frame 15 shown in FIG. 3, and FIG. 5 is a sectional view thereof.

In FIGS. 4 and 5, 17 is an arcuate protruding rib provided on the upper surface of the shaft hole 18 provided on the side surface of the frame 15, and 19 is an arcuate protruding rib provided on the entire outer circumference of the shaft hole 18. It is a protruding shaft hole protruding rib.

Reference numeral 20 denotes a backing whose outer circumferential tip a has a tongue shape and is made of elastic silicone rubber or the like, and which is attached to the rotating shaft 2 of the bonneim 22 which is attached to the frame 15 with a mounting fitting 21.
3, and the packing 200 is inserted into both sides of the
This portion comes into contact with the outer peripheral edge d of the shaft attachment hole 24 provided on the side surface of the knob 16 and the shaft hole protruding rib 19 provided on the side surface of the frame 15.

Further, the outer circumferential tip a of the packing contacts a position between the arc-shaped protruding rib 17 provided on the side surface of the frame 15 and the shaft hole protruding rib 19.

As shown in FIG. 6, on the inside of the knob 16, a hollow part f is formed between the outer peripheral edge part d of the shaft attachment hole 24 and the outer cut part e of the knob 16. When the knob 16 is inserted into the rotating shaft 23, the hollow part f is in a position facing the arcuate protruding rib 17, and the outer part e of the knob 16 is in a position opposite to the arcuate protruding rib 17.
is covered.

In the above state, rotate the knob 16 in the direction of the rotation axis.
It is fixed with screws 25 while being pressed against the frame 15 side.

The waterproof knob operation structure of the present invention has the above configuration, and even if a small amount of water is splashed on it, the arcuate protruding rib 17 provided on the upper surface of the shaft hole prevents the water from entering the shaft hole 18. does not enter, but instead flows downward from the shaft hole 18.

Moreover, even if a large amount of water or the like is dropped and a small amount of water, etc. that cannot be prevented by the arcuate protrusion rib 17 enters the inside of the arcuate protrusion 17, the outer peripheral tip a of the elastic gasket 20 , the packing 20 is in close contact with the side surface of the frame 15, and also between the outer peripheral edge d of the mounting hole 24 of the knob 16 and the shaft hole protruding rib 19 provided on the side surface of the frame 15. Since parts a and b of both sides of the shaft are in close contact with each other, the shaft does not penetrate into the frame 15 through the shaft hole 18.

As described above, according to the present invention, since it is constructed without using sealants such as adhesives and grease, it can be used even if the volume, switch, etc. installed inside the frame break down. Also, the parts can be easily replaced, and the structure is simple, so it is small in size and has a simple structure, and it can fully demonstrate its waterproof effect.

[Brief explanation of the drawing]

Figures 1 and 2 are sectional views of main parts of a typical conventional waterproof knob operation structure, and Figure 3 is a perspective view of an electrically heated toilet seat employing the waterproof knob operation structure of an embodiment of the present invention. , FIG. 4 is an exploded perspective view of the same knob, FIG. 5 is a sectional view of the same, and FIG. 6 is a perspective view showing the inside of the same knob. 15...Frame body, 16...Knob, 17
......Circular protruding knob, 18...Shaft hole, 19...Protruding rib, 20...Packing, 22...Volume, 23・・・・・・
Rotating shaft, 24...Shaft mounting hole.

Claims (1)

[Scope of utility model registration request] An arc-shaped protruding rib is provided at the upper part of the shaft hole of the frame body through which the rotating shaft rotated by the knob is inserted, and a protruding rib is provided on the hole line of the shaft hole of the frame body, and the gasket inserted through the rotating shaft is inserted into the knob. A waterproof knob operation structure in which the tongue-shaped portion at the tip of the outer periphery of the gasket is pressed into elastic contact with the side surface of the frame by being pressed between the protruding ribs.