JPS637116Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a toilet seat opening/closing device for a Western-style toilet bowl.

Most conventional Western-style toilet seats simply have their ends pivoted onto the toilet body.
If you let go of your hand while the toilet seat is opening or closing, the toilet seat will close forcefully and make a loud noise and hit the top edge of the toilet seat, or if you forcefully open the toilet seat, it will hit the toilet seat cover and make a loud noise as a result of the recoil. In addition to being noisy, there was also the risk of someone getting their hands in the toilet or breaking the toilet seat. Furthermore, since the toilet bowl itself has a considerable height, it is difficult for young children to reach the toilet seat when opening and closing it.

The purpose of this invention was to create a Western-style system in which the separate seat would not close forcefully, be able to hold it stably within a certain opening angle range, and be able to open automatically above a certain opening angle. An object of the present invention is to provide an opening/closing device for a toilet seat in a toilet bowl.

This invention will be explained in detail below based on one embodiment shown in the drawings. In FIGS. 1 and 2, brackets 2, 2 are fixed to both sides of the rear upper edge of the toilet main body 1, and A toilet seat cover 4 is pivotally attached to the center between the brackets 2 and 2 by a hinge rod 3 so as to be freely openable and closable. 5a, 5a are pivoted so that they can be opened and closed.

As shown in FIGS. 3 to 6, the bracket 2 includes a base portion 2a, a mounting boss 2b protruding from the bottom of the base portion 2a, and a mounting boss 2b that is integrally provided on one side of the base portion 2a. A hollow fixed shaft 6 and a spring locking protrusion 7 are respectively protruded into the spring case portion 2c. The mounting boss 2b is inserted into the mounting hole 1b provided in the upper sleeve portion 1a constituting the upper edge of the toilet main body 1, and is tightened with a nut 8. One end of the hinge rod 3 is attached to the fixed shaft 6. section has been inserted. In addition, the base part 2a and the upper sleeve part 1
Packings 9 and 10 are interposed between the nut 8 and the upper sleeve portion 1a, and between the nut 8 and the upper sleeve portion 1a, passing through the mounting boss 2b.

Reference numeral 11 denotes a rotating frame, and this rotating frame 11 includes a substrate portion 12a that is approximately U-shaped from the front.
and a pair of locking protrusions 12b, 12b, and a base plate 12a of the toilet seat locking portion 12.
The base plate portion 12a is provided with a mounting hole 12c that is coaxial and has the same diameter as the hole 13a provided in the rotating shaft 13, and the rotating shaft 13 is connected to the fixed shaft 6 of the bracket 2. It is fitted so that it can rotate freely to the outside. The rotary frame 11 is prevented from coming off by caulking the tip of the fixed shaft 6 that passes through the mounting hole 12c of the base plate 12a and protrudes from one side of the base plate 12a. A notch 13a is provided on the outer periphery of the rotating shaft 13, and a friction member 14 made of, for example, oleoresin is housed in the notch 13a, and one side thereof is brought into contact with the outer periphery of the fixed shaft 6. A torsion coil spring 15 having a torque that almost balances the weight of the toilet seat 5 is wound around the rotating shaft 13 in the spring case part 2c, and one end of the torsion coil spring 15 is protruded from inside the spring case part 2c of the bracket 2. The spring locking protrusion 7 provided therein is locked therein, and the other end thereof is locked in a locking hole 12d provided in the rotating frame 11.

Between the pair of locking protrusions 12b, 12b of the toilet seat locking portion 12 of the rotating frame 11, the mounting portion 5a of the toilet seat 5,
5b is inserted, and the mounting portions 5a, 5b are fixed by a mounting screw 17 attached to one of the locking protrusions 12b. In addition, the spring case part 2c
A cover 18 is also attached to the rotating shaft 13 through it.

Therefore, with the toilet seat 5 now closed,
As shown in FIG. 5, the spring 15 is in a wound state, and since the wound spring 15 presses the friction member 14 in the direction of arrow A with its abdomen 15a, at this time the friction member 1
The toilet seat 5 is maintained in a closed state by the frictional force generated between the toilet seat 4 and the fixed shaft 6.

When opening this closed toilet seat 5, the friction member 14
Due to the frictional force of is freely stopped and held at an intermediate position. Toilet seat 5
When the angle exceeds a certain opening angle, the torque applied by the spring 15 to the rotating frame 11 exceeds the torque applied by the toilet seat 5 to the rotating frame 11, and the toilet seat 5 is automatically opened. In the embodiment, the toilet seat cover 4 abuts the rear water tank 19 in the approximately 100° open position, so that the opening angle of the toilet seat 5 is also at this angle. When the toilet seat 5 is open, the abdomen 15a of the spring 15 and the friction member 14
Since there is a gap P between them, no frictional force is generated by the friction member 14 against the fixed shaft 6. When the opened toilet seat 5 is closed, the spring 15 is wound up and the torque increases, but since the abdomen 15a increases the pressing force against the friction member 14, the toilet seat 5 is pushed while encountering this resistance. It does not close abruptly and automatically. As mentioned above, during this time, the angle is arbitrarily stopped and held at an intermediate angle.

As another embodiment, the rotating shaft provided on the toilet seat locking portion may be inserted into the fixed shaft provided on the bracket side, and the friction member may be housed in a notch provided in the fixed shaft and brought into contact with the rotating shaft. Conceivable. In this case, since the friction member itself does not rotate together with the rotating shaft as in the previous embodiment, there is an advantage that there is no fear that the friction member will come off during use. Furthermore, the friction member may be provided not only at one location but at several locations.

As explained in detail above, this invention not only provides a good feeling when opening and closing the toilet seat, but it is also safe because there is no fear of the toilet seat falling forward even when it is open, and it does not close suddenly when it is closed. In addition, it can be used by simply changing the bracket without modifying the existing toilet seat, and it is also easy to use and convenient for children as it is possible to add errands while the toilet seat is stopped halfway. It is possible to achieve the following effects.

[Brief explanation of the drawing]

The drawings show one embodiment of this invention; Fig. 1 is a partially cutaway side view of a toilet implementing this invention, Fig. 2 is a plan view of the same, and Fig. 3 is a view taken from A--A in Fig. 2.
A sectional view taken along the line A, Figure 4 is a sectional view taken along the line B-B in Figure 2,
Figure 5 is a sectional view taken along line C-C in Figure 2, and Figure 6 is a cross-sectional view of Figure 3.
FIG. 7 is a sectional view taken along the line DD in the figure, and a side sectional view showing the operational relationship thereof. 1... Toilet bowl body, 2, 2... Bracket, 5...
...Toilet seat, 6...Fixed shaft, 6a...Notch, 11...
Rotating frame, 12...Rotating shaft, 14...Friction member, 15...Torsion coil spring, 15a...
…abdomen.

Claims (1)

[Scope of utility model registration request] A bracket attached to the rear upper edge of the toilet seat body, a rotating shaft provided on the bracket, a rotating frame that rotates together with the toilet seat, a rotating shaft rotatably attached to the fixed shaft provided on the rotating frame, and the fixed shaft. The toilet seat consists of a friction member housed in a notch provided in the shaft or rotating shaft, and a torsion coil spring that is wound around the outside of the friction member and elastically installed between the bracket and the rotating frame. An opening/closing device for a toilet seat, characterized in that the friction member is pressed against the fixed shaft or the rotating shaft by the abdomen of the torsion coil spring that is wound up during the closing operation, thereby exerting a braking action.